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TIPPERARY OIL & GAS (AUSTRALIA) PTY LTD

FAIRVIEW 77

WELL COMPLETION REPORT

PL100

QUEENSLAND

Tipperary Oil and Gas (Australia) Pty LimitedA.C.N. 077 536 871

Level 20307 Queen Street

Brisbane Qld 4000February, 2004

W R Fawcett

TABLE OF CONTENTSPage No.

WELL DATA CARD

1.0 SUMMARY 1

2.0 WELL HISTORY 32.1 General Data 32.2 Drilling Data 3

2.2.1 Drilling Data Summary 32.2.2 Casing and Cementing: 72.2.3 Deviation Surveys: 72.2.4 Drilling Fluid Data 82.2.5 Water Supply: 92.2.6 Perforation Record: 92.2.7 Plugging and Cementing: 9

2.3 Logging and Testing 92.3.1 Wellsite Geologist: 92.3.2 Mudlogging: 92.3.3 Ditch Cutting Samples: 92.3.4 Sidewall Cores: 92.3.5 Wireline Logs: 102.3.6 Temperature Surveys: 10

3.0 GEOLOGY 123.1 Reasons for Drilling 123.2 Reservoir 12

3.2.1 Bandanna Formation 123.2.2 Rewan Formation 133.2.3 Timbury Hills Formation 13

3.3 Stratigraphic Prognosis 133.4 Stratigraphy 133.5 Hydrocarbon Shows 23

3.5.1 Rewan Formation 233.5.2 Bandanna Formation 233.5.3 Black Alley Shale 233.5.4 Tinowon Formation 243.5.5 Muggleton Formation 24

4.0 DISCUSSION AND CONCLUSIONS 25

5.0 REFERENCES 25

LIST OF FIGURESFigure 1 Locality Map 2Figure 2 Drilling Time/Depth Curve 5Figure 3 Well Schematic 11

LIST OF ATTACHMENTSAttachment 1 Cuttings DescriptionsAttachment 2 Drilling Fluid Summary by RMN Drilling Fluids Attachment 3 Electric Log ReportAttachment 4 Well Location Survey PlanAttachment 5 Geoservices Mudlog Scale 1:200

WELL DATA CARD TOGA – FAIRVIEW 77 PAGE 1 of 3

Location: Latitude: Longitude: Station: Line:

25º 46' 07.751" S149º 01' 38.153" EVP 995CR98C - 40

Status: Cased and suspended

Rig: OD&E

Total Depth: Driller:

Rig 20

1615.0 metresElevation: GL:

RT:355.9 metres359.9 metres

Logger: 1614.2 metres

Map:

Grid:

Injune

MGA East:

1: 250000

703 305.94

Hole: Size(a) Conductor 381 mm(b) Surface 311 mm

Depth11.0 m

210.0 mMGA North: 7 148 345.20 (c) Production 216 mm 1614.2 m

Date Spudded: Reached TD

00:00 hours08:30 hours

31st July 200323rd August 2003 Casing: Size Shoe

Date rig release:

Type Structure:

12:00 hours

Dipping Anticline

27th August 2003 (a) Conductor 356 mm(b) Surface 245 mm(c) Production 178 mm

11.0 m207.25 m

1219.0 m

S T R AT IG R A PH I C UN I T S P E N E TR A T E D

AGE FORMATION R.T. DEPTHS

MSL DEPTHS THICKNESS(m)

EARLY JURASSIC EVERGREEN FORMATION 4.0 355.9 115.0

EARLY JURASSIC PRECIPICE SANDSTONE 119.0 240.9 68.0

EARLY TRIASSIC REWAN FORMATION 187.0 172.9 383.0

LATE PERMIAN BANDANNA FORMATION 570.0 -210.1 133.0

LATE PERMIAN BLACK ALLEY SHALE 703.0 -343.1 321.9

LATE PERMIAN TINOWON FORMATION 1024.9 -665.0 136.8

LATE PERMIAN Wallabella Coal 1141.6 -781.7 20.1

LATE PERMIAN MUGGLETON FORMATION 1161.7 -801.8 49.3

DEVONIAN TIMBURY HILLS FORMATION 1211.0 -851.1 403.2+

T.D. (LOGS) 1614.2 -1254.3

NET C O A L PENE T R A TED

Coal Top (m RT) Base (m RT) Gross / Net (m)A 570.0 571.8 1.8/1.8

B 588.6592.3

590.8595.5

2.2/2.23.2/3.2

D 616.6 629.3 12.7/5.65Total 12.85

WELL DATA TOGA FAIRVIEW PAGE 2 of

W I R E L I N E L O G S Type Log Run Interval BHT / TimePEX (HALS) - BHCDLL 1.1 1611.0 – 207.0 66CMSFL 1.1 1602.0 – 207.0BHC 1.1 1607.0 – 207.0SP 1.1 1594.0 – 207.0CAL 1.1 1602.5 – 207.0GR 1.1 1596.0 – 51.0RHOB 1.1 1602.0 – 207.0NPHI 1.1 1599.0 – 51.0PEF 1.1 1602.0 – 200.0FMI 1.2 1610.0 – 1143.0GR 1.2 1610.0 – 1143.0

F O R M A T IO N T E S TS

No Interval (m)

Periods (mins)

EMP IP/FP(psi)

EMP FSIP(psi)

Fluid to surface (mins)

Surface Press. (max)(psi)

TC.mm.

BC.mm.

Rev. Out

Result.

Nil

F U L L H O L E C O R E S

No. Interval Formation Cut (m) Rec.(m)Nil

P E R F O R A T I O N S

Interval Formation Shots / ft.Fairview-77 Cased and Suspended

SIDE W A LL CORES

Depth (m) Lithology

PorosityHelium

(%)

GrainDensity (g/cm3)

PermeabilityIn Air (mD)

Remarks

Nil

WELL DATA CARD TOGA FAIRVIEW 77 PAGE 3 of 3

SUM M A R Y

Fairview 77 was drilled as an exploration well in PL100 to test the methane potential of the

Bandanna Formation coals. Fractured lithology in the Timbury Hills Formation metasediments

was a target for potential injection and subsequent removal of produced water, and possible

sands in the Rewan Formation were listed as secondary objectives. The well was located at

Vibrator Point 995, line CR98C-40, on a seismically defined structural high at both the Bandanna

and Timbury Hills Formation reflectors.

Fairview 77 spudded at 00:00 hours, 31st July, 2003, and conductor hole (381mm) was drilled to 11

m. The conductor (356 mm) was set at 11 m. The surface hole (311 mm) was drilled with mud to

210 m. Surface casing (244 mm) was set at 207.25 m. The production hole (216 mm) was mud

drilled to a T.D. of 1615 m (D), 1614.2 m (L). T.D. was reached at 08:30 hours, 23rd August 2003.

After logging the well, the production hole was plugged back to 1220 using 60 sacks cement

spotted over the interval 1240 – 1220 metres. Production casing (178 mm) was run to 1219 metres

and cemented.

Fairview 77 drilled a sequence of Early Triassic Rewan Formation from surface casing shoe

followed by the suite of Late Permian formations typical of the Roma Shelf, namely Bandanna

Formation, Black Alley Shale and Tinowon and Muggleton formations. The well reached TD at

1615 m RT in light grey green metasediments of the Timbury Hills Formation. Stratigraphic

control was very good with formation tops intersected generally between 3 m high and 11 m low.

The Bandanna Formation primary target was intersected 7 m high and encountered a total of 10.1

metres of coal.

Fairview 77 was cased and suspended and the rig was released at 12:00 hrs 27th August 2003.

Wellsite Geologist: W R Fawcett Card Prepared by: W R Fawcett Date: 30/09/03

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1.0 SUMMARY

Fairview 77 was drilled as an exploration well on a structural high approximately 50 kilometres east-

northeast of the township of Injune in central Queensland. The nearest well is Fairview 79 (approximately

5km south east). Fairview 77 was drilled to test the methane potential of the Bandanna Formation coals and

to evaluate potentially fractured metasediments of the Devonian Timbury Hills Formation basement.

Fairview 77 spudded at 00:00 hours, 31st July, 2003. The conductor hole (381mm) was mud drilled to 11 m.

The conductor (356 mm) was set at 11 m in the Evergreen Formation. The surface hole (311 mm) was mud

drilled to 210 m and surface casing (244 mm) was set at 207.25 m in the Rewan Formation. The production

hole (216 mm) was mud drilled to a T.D. of 1615 m (D), 1614.2 m (L). T.D. was reached at 08:30 hours, 23 rd

August 2003.

Fairview 77 drilled a sequence of Early Triassic Rewan Formation from surface casing shoe followed by

the typical Roma Shelf suite of Late Permian formations, namely Bandanna Formation, Black Alley Shale

and Tinowon and Muggleton formations. The well reached TD at 1215 m RT in light grey green

metasediments of the Timbury Hills Formation. Stratigraphic control was good with formation tops

intersected generally between 7 m high and 11 m low. The Bandanna Formation primary target was

intersected 7 m high and encountered a total 10.1 m of coal.

After logging the production hole was plugged back over the interval 1240 to 1220 m and production casing

(178 mm) run and cemented to 1219 m. The rig was released at 12:00 on 27th September 2003.

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Figure 1: Fairview 77 Location Map

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2.0 WELL HISTORY

2.1 General Data

2.1.1 Well Name and Number: Fairview 77

2.1.2 Location: Latitude:Longitude: AMG Easting:

25º 46' 07.751" S149º 01' 38.153" E

703 305.936AMG Northing 7 148 353.415

2.1.3 Elevations: G.L.:R.T.:

355.9 A.S.L.359.9 A.S.L.

2.1.4 Petroleum Tenement: PL 100

2.1.5 Permit Operator: TIPPERARY OIL & GAS (AUSTRALIA) PTY LIMITEDA.C.N. 077 536 871 Level 20307 Queen Street,Brisbane Queensland 4000Tel: (07) 3002 4300

2.1.7 Date Drilling Commenced: 00:00 hours July 31st 2003

2.1.8 Date Drilling Completed: 08:30 hours 23rd August 2003

2.1.9 Date Rig Released: 12:00 hours 27th August 2003

2.1.10 Drilling time to T.D.: 24 days

2.1.11 Total Depth: Driller:1615.0 m

Logger: 1614.2 m

2.1.12 Status: Cased and suspended.

2.2 Drilling Data

2.2.1 Drilling Data Summary

Below is the operations summary for Fairview 77. It has been compiled from the tour sheets and daily drilling reports. T Beetson and D Waldron provided onsite drilling supervision for Tipperary Oil and Gas (Australia) Pty Limited. Further details are provided in the time/depth curve (Figure 2). Fairview 77 was spudded at 00:00 hours, Thursday 31 st July, 2003, using the OD&E Drilling Rig 20.

Conductor HoleSize: 381 mmInterval: Surface – 11 m Drilling Fluid: Mud

The conductor hole was drilled to 11 metres and six metres of 14”/356 mm 54.57#/ 55.12 kg/m standard casing was run, set at 11 metres and cemented with five sacks of Class ‘A’ cement.

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Surface Hole Size: 311 mmInterval: 11 – 210 m Drilling Fluid: mud

The 311 mm hole section was drilled to 210 metres with surveys. A total of 16 joints of 244 mm 53.57 kg/m K55 surface casing were run, length 202.01 metres, set at 207.25 metres, and cemented with 250 sacks of Class ‘A’ cement with 6% Bentonite. A tail comprising 150 sacks of Class ‘A’ neat cement top-up was run.

The BOPs were nippled up and function and pressure tested. The blind rams, casing and choke manifold were all pressure tested to 500/2000 psi. After running in the pipe rams, HCR, kill line, stabbing valve and kelly cocks were all tested to 500/2000 psi. The annular and upper kelly cock were pressure tested to 500/2000 psi.

Cement was tagged at 191 m and the cement and shoe track were drilled out.

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1 Fairview 77Time-Depth Curve

23

4

5

Spud WellDrill 311 mm hole to 210 metres.Set 245 mm casing at 207 metres. Install BOP's. Pressure test.Drill collar separation and fishing at 895 m .Wait on replacement BHAChange bit.Change bitChange bit 9.Change bitRepair brakes on draw worksSPressure loss, POOH for cracked collarTD, run and cement casing, release rig.

6

7

8

9

10

11 12

0

200

400

600

800

1000

1200

1400

1600

1800

20000 5 10 15 20 25 30

Days from spud

Figure 2: Time-Depth Curve

Dep

th

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Production HoleSize: 216 mmInterval: 210 – 1615 mDrilling Fluid: KCl-PHPA system

After drilling out the shoe, the 216 mm hole was drilled to 215 m and the hole circulated clean. An FIT was run to 190psi with 8.6ppg mud resulting in 14ppg/ 1.68 S.G. EMW. The hole was then displaced to KCl-Polymer mud. The 216 mm hole section was drilled to 570 metres with surveys. Drilling breaks over coals from 570 metres to 630 metres were circulated (slow circulation rate) to surface.

Pump pressure decreased at 895 metres and a sudden loss of weight (18,000lbs/ 8,181.8kg) indicated loss of pipe in hole. A high viscosity pill was pumped and the drill pipe was pulled to surface to make up fishing tools. An overshot loaded with 6⅛”/ 15.6cm spiral grapple fishing tool was used to retrieve 9 6¼” drill collars, a ring stabiliser, shock sub, bit sub and bit. The top of fish was recorded at 808.92 metres. A new bit was run to bottom and the hole was drilled to 1330 metres with surveys. The deviation had been held within programmed parameters (1º and 1¼º at 1095 m and 1172 m respectively) but intersection of basement at 1211 metres coincided with a marked increase in deviation to 5º at 1277 metres; the Timbury Hills basement has recorded dips of 60º to 80º and the bit appears to have responded accordingly. Deviation increased progressively to 6¾º at 1324 metres.

A bit trip was made at 1330 m due to performance and 216 mm hole was drilled to 1375 m prior to tripping out. The bit was replaced and a new bit was run together with a junk sub to retrieve bit inserts. Deviation increased to 12º by 1401 metres. Bit #6 was pulled at 1488 m and bit #7 was run. Lost circulation was encountered at 1527 metres with rate decreasing from approximately 80bbl/hr to 30bbl/hr. Losses had effectively ceased by the time LCM was pumped and the well drilled ahead to 1615 metres. Pressure losses necessitated pulling the string and TD was called at 1615 metres (drlr).

The well was logged at TD with Schlumberger; wireline logs consisted of Run 1: PEX -HALS- BHC and Run 2: FMI-GR.

The 165 mm drill collars were laid out and open-ended drill pipe run into 1240 m. After circulating and conditioning the hole, a balanced plug was set over the interval 1240 m to 1220 m with 60 sacks Class G cement. The hole was circulated and conditioned and the pipe pulled out of hole.

97 joints of casing were run to 1219 metres with a float collar at 1205 metres. Casing was cemented in two stages. Stage 1 used 540 sacks class "G" cement with 1% HALAD 332 (110 bbls slurry) displaced with 58 bbls KCL water. The DV opening bomb was released then displaced with a further 94 bbls mud. Float equipment was checked and pressured up to 1000psi prior to opening the DV collar.

A 5 bbl H20 spacer was pumped for Stage 2 followed by 145 sacks class "A" 6% blend cement with 0.2% HR7 (44 bbls slurry) followed by 300 sacks class "A" with 0.2% HR5 (63 bbls slurry). The plug was released and displaced with 94 bbls KCL brine. The plug was bumped and the DV tool closed with 1000psi. Casing was pressure tested to 2500psi and held 10 minutes; pressure was released pressure with no flow back.

The BOPs were lifted, slips set and 178 mm casing cut. After waiting on cement the casing stub was dressed, the ‘B’ section installed, and pressure tested to 2500 psi.

The rig was released at 12:00 hours 27th August 2003.

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2.2.2 Casing and Cementing:

ConductorSize - 14" / 356mmWeight - 55.12 kg/mGrade - API L5 Line pipeShoe Setting Depth - 11.0 mQuantity of Cement - 5 sacks class ‘A’ Interval Cemented - To surface SurfaceSize - 9 5/8" / 244mmWeight - 36# / 53.57 kg/mGrade - K55Shoe Setting Depth - 207.25 mQuantity of Cement - 250 sacks class ‘A’ with 6% Gel lead, 150

sacks class ‘A’ neat tailInterval Cemented - To surfaceProductionSize - 7" / 178mmWeight - 34.23 kg/mGrade - K55Shoe Setting Depth - 1219 mQuantity of Cement - First stage 540 sacks ‘G’ w/- 1% HALAD

332. Second stage 145 sacks ‘A’ with 0.2% HR7 lead followed by 300 sacks ‘A’ with 0.2% HR5 tail slurry

2.2.3 Deviation Surveys:

Depth(metres)

Deviation(degrees)

Depth(metres)

Deviation(degrees)

Depth(metres)

Deviation(degrees)

20 ½º 752 1¾º 1360 8º65 1º 800 2º 1370 9¼º92 ¾º 849 1¾º 1391 14+º

155 1¼º 943 1¾º 1401 12º200 ¾º 1020 1¾º 1410 12º262 ¾º 1095 1º 1419 13º339 1½º 1172 1¼º 1438 14º369 1¼º 1248 4¼º 1457 14¼º408 ¾º 1267 5¼º 1484 14½º455 1¼º 1277 5º 1562 15º503 ¾º 1296 5½º 1604 15º551 1º 1315 6¼º TD at 1615m drlr628 2º 1324 6¾º 1614m logr685 1¼º 1340 7º

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2.2.4 Drilling Fluid Data

(a) Spud – 11 m Fluid - Mud

(b) 11 – 210 m Fluid - Mud

(c) 200 - TD Fluid - KCl / PHPA / AirAdditives - Pac-LV, Pac-R, Caustic Soda, Defoamer, Aus-Gel, KCl,

PHPA, Biocide G.

Physical Mud Properties:

Date Ppg Vis. WL pH FC Sand Solid Cl- ppm KCl01/08 8.5 43 n/a 9.5 n/a n/a 4%.0 1500 -02/08 8.6 45 n/a 9.0 n/a n/a 5.0% 1500 -03/08 8.6 34 n/a 8.0 n/a n/a n/a 21,000 4.4%04/08 8.7 36 12.0 9.5 1/32” Tr. 1.5% 21,000 4.4%05/08 9.1 40 7.6 9.5 1/32” 0.1 4.0% 28,500 6.0%06/08 9.1 40 7.0 9.5 1/32” 0.15 5.0% 26,500 5.6%07/08 9.05 40 6.4 9.5 1/32” 0.15 5.0% 28,500 6.0%08/08 9.15 40 6.0 9.0 1/32” 0.15 5.0% 26,500 5.6%09/08 9.15 41 6.0 9.0 1/32” 0.2 5.0% 26,200 5.5%10/08 9.2 42 6.0 9.0 1/32” 0.2 6.0% 23,800 5.0%11/08 9.4 42 7.0 9.5 1/32” 0.25 7.0% 32,000 6.7%12/08 9.4 44 6.2 9.5 1/32” 0.25 8.0% 32,000 6.7%13/08 9.35 46 6.0 9.5 1/32” 0.25 8.0% 31,200 6.6%14/08 9.5 44 7.0 9.5 1/32” 0.25 9.0% 31,000 6.4%15/08 9.5 44 7.4 9.0 1/32” 0.25 9.0% 31,000 6.4%16/08 9.3 42 7.0 9.5 1/32” 0.15 7.0% 23,000 4.8%17/08 9.3 42 7.0 9.5 1/32” 0.15 7.0% 24,800 5.2%18/08 9.25 42 6.8 9.5 1/32” 0.15 7.0% 24,800 5.2%19/08 9.25 42 6.6 9.5 1/32” 0.15 6.0% 23,000 4.8%20/08 9.25 42 6.8 9.0 1/32” 0.15 6.0% 23,000 4.8%21/08 9.2 42 7.2 9.0 1/32” 0.15 6.0% 22,000 4.6%22/08 9.2 42 7.0 9.5 1/32” 0.15 6.9% 24,800 5.2%23/08 9.15 42 6.6 9.5 1/32” 0.15 5.0% 24,800 5.2%24/08 9.15 42 6.6 9.5 1/32” 0.15 5.0% 24,800 5.2%25/08 9.2 42 6.8 9.5 1/32” 0.15 5.0% 24,800 5.2%

Chemicals Used:

Product Units AmountAMC Biocide G (20 lt) 4 drums 80 ltAMC Defoamer (20 lt) 1 drums 20 ltAMC Pac-LV (25 kg) 18 sacks 450 kgAMC Pac-R (25 kg) 61 sacks 1525 kgAus-Gel (25 kg) 123 sacks 3075 kgCaustic Soda (25 kg) 53 sacks 1325 kgKCl (25 kg) 882 sacks 22050 kgPHPA (25 kg) 83 sacks 2075 kgSoda Ash (25 kg) 0 sacks 0 kgSodium Bicarbonate (25 kg) 1 sack 25 kgSodium sulphite 40 sack 1000 kgSAPP 5 sack 125 kgXantemp SD (25 kg) 10 sack 250 Kg

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2.2.5 Water Supply:

Water was obtained from a dam near the lease. Sump water was recycled for drilling fluid make-up water as the well progressed.

2.2.6 Perforation Record:

Fairview 77 was cased and suspended for perforation and completion at a later date.

2.2.7 Plugging and Cementing:

Plug 1: 1240 – 1200 m, tagged at 1220 m. Plug set to isolate the Timbury Hills Formation basement for future evaluation as a water injection and disposal zone.

2.3 Logging and Testing

2.3.1 Wellsite Geologist:

W R Fawcett

2.3.2 Mudlogging:

Geoservices provided Mudlogging services. Cuttings gas was monitored from surface casing shoe to total depth using a hot-wire gas detector and a FID gas chromatograph. A mudlog recording lithology, penetration rate, mud gas and other data was prepared and forms an enclosure to this report.

2.3.3 Ditch Cutting Samples:

Cuttings were collected at 10 m intervals from the surface casing shoe to 540 m., then 3m intervals to T.D. The cutting samples and sets were:

Sample Type No. Sets Washed 2

2.3.4 Sidewall Cores:

No Mechanical Sidewall or conventional cores were programmed.

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2.3.5 Wireline Logs:

Schlumberger ran one suite of logs in two runs1. PEX (HALS)-BHC-SP-CAL-GR2. FMI-GR

Production hole logging suite (45.0 – T.D.)

1.1 DLL 1611 – 207.01.1 MSFL 1602.0 – 207.01.1 BHC 1607.0 – 207.01.1 SP 1594.0 – 207.01.1 CAL 1602.0 – 207.01.1 GR 1456.3 – 51.01.1 RHOB 1602.0 – 207.01.1 NPHI 1599.0 – 51.01.1 PEF 1602.1 – 200.01.2 FMI 1610.0 – 1143.01.2 GR 1610.0 – 1143.0

2.3.6 Temperature Surveys:

Wireline logging recorded the following bottom-hole temperature:-

1.1 66C.

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Figure 3: Well Schematic

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3.0 GEOLOGY

3.1 Reasons for Drilling

Fairview 77 is located approximately 50 kilometres east northeast of the township of Injune in central

Queensland. The nearest well is Fairview 79 drilled by Tipperary Oil & Gas (Australia) Pty Ltd.

Fairview 77 was drilled to test the methane potential of the Bandanna Formation coals as a primary

objective and to assess possible fractures in the Timbury Hills Formation basement as a potential

target for water injection. Sands in the Rewan Formation were cited as potential secondary

objectives.

Fairview 77 is located between the Fairview 31-55-62 and 32-56 well groups along the Bonnie Doon

Ridge. Fairview 77 was drilled at Vibrator Point 995 on seismic line CR98C-40 on a seismically

identified structural high at both the Bandanna and Timbury Hills Formations. Faulting interpreted in

the Permian strata in conjunction with seismic horizon discontinuities below the Permian in presumed

Timbury Hills metasediments suggested the potential for natural fractures suitable for a water disposal

well. (The Devonian Timbury Hills Formation, a steeply dipping metamorphic formation generally in

the lower greenschist facies, has produced gas in Pickanjinnie, Pringle Downs, and Blackbutt fields on

the Roma Shelf to the south and southwest of Fairview 77 where hydrocarbon migration and

structural/stratigraphic conditions are favourable – this indicates that the Formation has the potential to

be porous and permeable in the appropriate tectonic environment.)

The average flowing well in the Fairview well group produces about 550 Bbls water per day with TDS

levels and conductivity that are generally regarded as too high to allow surface discharge into natural

drainage. This volume may be small enough to permanently store in lined evaporation pits (currently

being investigated by RLMS) but the volume capable of being pumped, however, is around 1500-2000

Bbls water per day; as such, alternative measures to accommodate this volume of water are sought.

3.2 Reservoir

3.2.1 Bandanna Formation

The Bandanna Formation coals were the primary target in Fairview 77. The well intersected a

total of 12.85 metres of Bandanna Formation coal seams ranging from less than 1 metre to 2.8

metres thick. The coal is black, vitreous to sub-vitreous, firm, brittle, blocky, with an uneven,

hackly break. In places the coal is silty to argillaceous in part grading to carbonaceous siltstone:

the interval 616.8 – 629.5 m comprised 12.7 metres of interbedded coal and carbonaceous

siltstone of which 3.0 metres constituted coal.

Bandanna coal seams had gas shows ranging from 1245 to 3717 units. The main “A” coal

encountered at 570m had the highest reading (3717 units).

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3.2.2 Rewan Formation

The Rewan Formation comprised a thick sequence of red and green siltstones with minor

sandstone. No significant shows were encountered and logs showed potential gas sands at 408.5

– 411.5 and 452.0 – 457.0 m to be tight.

3.2.3 Timbury Hills Formation

The Timbury Hills basement was targeted for evaluation in the event of good fracture

development. Lost circulation and/ or hydrocarbon shows were considered indicators of

fracture porosity that could offer potential for water disposal and 403 metres of section was

penetrated; the interval was logged with the FMI and is discussed in the log report, Appendix 3.

3.3 Stratigraphic Prognosis

The stratigraphic prognosis was made utilising the results of the closest wells. A comparison between

prognosed and actual formation tops is given below.

FormationPredicted

(m RT)Actual (m RT)

Difference (m)

Precipice Sandstone 118 119 1 L

Rewan Formation 190 187 3 H

Bandanna Formation 577 570 7 H

Black Alley Shale 700 703 3 L

Tinowon Formation 805 1024.9 219.9 L

Muggleton Formation 960 1161.7 201.7 L

Lorelle Sandstone Member 1115 Not identified -

Timbury Hills Formation 1200 1211 11 L

T.D. (Logs) 1800 1614.2

3.4 Stratigraphy

Fairview 77 was prognosed to intersect the suite of Jurassic, Triassic and Permian formations typically encountered in wells drilled on the western margin of the Surat and Bowen basins. The well was planned to terminate in Devonian basement. The generalised depositional sequence from oldest to youngest formations may be summarised as follows.

The oldest rocks typically encountered by hydrocarbon wells on the western margin are steeply dipping metamorphics of the Timbury Hills Formation basement. The basement lithology comprises a thick sequence of interbedded grey to green grey siltstones and pale grey sandstones that have been altered to low grade greenschist facies. The metasiltstones have a micaceous to phyllitic sheen. Dips are recorded as 60º to 80º.

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The Timbury Hills Formation is unconformably overlain by sediments of the lowermost member of the Permian succession in the Roma area. The Muggleton Formation consists of shale, siltstone and sandstone with minor coal and tuff. A quartz litharenite horizon near the middle of the Formation, possibly affiliated with the Lorelle Sandstone Member, consists of quartzose sandstone with minor shale, siltstone, coal and tuff.

The Muggleton Formation is conformably overlain by shale, siltstone and sandstone of the Tinowon Formation. Coals are well developed and a thick Wallabilla Coal Member is recognised. Shells and fossil spines presumably correlatives of the Mantuan productus beds are common towards the top of the Formation and assist recognition of the contact with the overlying Black Alley Shale. The Black Alley Shale is described as a succession of dominantly black claystones with white tuff beds. A thin, prominent coal within the Formation is named the Winnathoola Coal Member.

The Black Alley Shale is overlain by claystone, siltstone, sandstone and coal of the Bandanna Formation. The Formation represents the uppermost exclusively Late Permian unit and is overlain by the Late Permian-Early Triassic Rewan Formation. The Rewan Formation is recognised as a lower sequence of light green grey fine to medium lithic sandstones interbedded with green to brown claystones, the Saggitarius Sandstone, and overlying red brown claystone, sandstone and silty claystone of the Arcadia Formation.

In many of the wells on the north-eastern side of the Taroom Trough the Showgrounds Sandstone and Moolayember Formation are absent and the Rewan Formation is unconformably overlain by fine to very coarse quartzose sandstones of the Early Jurassic Precipice Sandstone. The Evergreen Formation overlies the Precipice Sandstone and consists of green-grey, labile and sublabile, fine to medium grained sandstone, carbonaceous claystone and siltstone.

Fairview 77 did not intersect significant coal in the Black Alley Shale and the Winnathoola Coal Member is not interpreted in the well. The base of the Black Alley Shale is placed at the lowest flooding surface inferred from gamma ray, neutron and sonic logs. The Muggleton Formation and Lorelle Sandstone Member were not clearly recognisable in the well and may have been absent due to on-lap thinning and resultant non-deposition against the palaeohigh; a possible top Muggleton Formation at 1161.7 metres may, in fact, be part of the lower Tinowon Formation.

Figure 4 shows a cross section between Fairview 77 and Dawson Bend 1 over the Black Alley Shale. The cross section has been used to resolve the base Bandanna Formation and top Tinowon Formation. The Formation has been sub-divided into six flooding surfaces, the deepest being placed at the top of the Tinowon Formation. The section in Fairview 77 is thinner than present in Dawson Bend 1 with each flooding surface interval showing inferior development due, presumably, to higher palaeorelief across the Fairview structure. The correlation also shows that the lower Permian formations are likely to have undergone onlap and pinchout against the Fairview basement high, thus placing the oldest sediments within the lower Tinowon Formation rather than the Muggleton Formation.

The following stratigraphy is based on the cross sections in figures 4 and 5 below. The Muggleton Formation is retained in cuttings descriptions pending additional data either supporting or disproving its presence.

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Figure 4. Stratigraphic breakdown of the Black Alley Shale based on interpreted flooding surfaces.

Figure 5. Stratigraphy in the lower Permian to basement interval, Fairview 77 and Dawson Bend 1.The Muggleton Formation in this interpretation has pinched out against the palaeohigh

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The following stratigraphy was penetrated in Fairview 77.

EVERGREEN SHALE [Early Jurassic]4 – 119 metres Thickness: 331.2 metres

4 - 119 m SILTSTONE with minor SANDSTONE.SILTSTONE, light greenish grey to grey, rare dark grey or dark brown, argillaceous, slightly arenaceous i/p, carbonaceous specks and inclusions, moderately hard, sub blocky to blocky.SANDSTONE, clear to translucent, off white to very pale grey, very fine to fine, moderately well sorted, sub-rounded to angular, weak to locally strong silica cement, locally common off white pale grey argillaceous matrix, friable, poor visual porosity.

PRECIPICE SANDSTONE [Early Jurassic]119 – 187 metres Thickness: 331.2 metres

119 – 187 m SANDSTONE with minor SILTSTONE.SANDSTONE, clear to translucent, off white to very pale grey, fine to coarse, occasionally very coarse, moderately well sorted in part in part, sub-rounded to angular, weak to locally strong silica cement, conchoidal fractures on some grains, locally common off-white to pale green-grey argillaceous matrix, friable, good visual porosity.SILTSTONE, greenish grey, rare dark grey, argillaceous, arenaceous i/p, moderately hard to soft, argillaceous, sub blocky to blocky. Siltstone more common towards the base.

REWAN FORMATION [Early Triassic]187.0 – 570.0 metres Thickness: 383.0 metres

187 - 250 m Interbedded CLAYSTONE and SILTSTONE with minor SANDSTONE. CLAYSTONE, reddish brown, dusky red, dark grey brown, very argillaceous, grades to siltstone in part, generally soft and dispersive but sub fissile to splintery and firm when present as large cuttings SILTSTONE, light to dark greenish grey, reddish brown to dusky red in part, argillaceous, locally grades to very fine sandstone, trace carbonaceous inclusions, trace micro-micaceous, firm to moderately hard, sub blocky to blockySANDSTONE, off white, light pale grey, green grey, very fine to fine, locally minor medium to coarse in part, well sorted, subangular to subrounded, moderately strong silica cement, trace light grey argillaceous matrix, trace to common green lithics, tight to very poor visual porosity, no fluorescence.

250 – 280 m Interbedded SILTSTONE and SANDSTONE.SILTSTONE: dominantly light to medium green grey, light to medium grey, minor dusky red, very argillaceous, arenaceous in part, siliceous in part, trace to common carbonaceous flakes and dark green lithics, dispersive to firm, rarely moderately hard, subblocky to subfissile.SANDSTONE: very fine to fine, clear to translucent in part, light green to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor to common off white argillaceous matrix, trace to common green lithics and mica flakes, friable to moderately hard aggregates, loose in part, poor visual porosity trace carbonaceous specks, very poor to poor visual porosity.

280 – 320 m Interbedded CLAYSTONE, SILTSTONE and SANDSTONE.CLAYSTONE: a/a, brown to dark red, dusky red, grades to argillaceous SILTSTONE in part, firm to moderately hard, subfissile to sub blocky in larger cuttings, commonly soft and dispersive.SILTSTONE: dominantly light to medium green grey, light to medium grey, very argillaceous, arenaceous in part, siliceous in part, trace to common carbonaceous flakes and dark green lithics, dispersive to firm, rarely moderately hard, subblocky to subfissile.

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SANDSTONE: very fine to fine, clear to translucent in part, light green to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor to common off white argillaceous matrix, trace to common green lithics and mica flakes, friable to moderately hard aggregates, loose in part, poor visual porosity trace carbonaceous specks, very poor to poor visual porosity.

320 – 340 m Interbedded SANDSTONE and SILTSTONE with minor CLAYSTONE SANDSTONE: a/a, very fine to fine, rarely coarse, clear to translucent in part, light green to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor to common off white argillaceous matrix, trace to common green lithics and mica flakes, friable to moderately hard aggregates, loose in part, poor visual porosity trace carbonaceous specks, very poor to poor visual porosity.SILTSTONE: a/a, light to medium green grey, light to medium grey, very argillaceous, arenaceous in part, siliceous in part, trace to common carbonaceous flakes and dark green lithics, dispersive to firm, rarely moderately hard and subblocky to subfissile.CLAYSTONE: a/a, brown to dark red, grades to argillaceous SILTSTONE in part, firm to moderately hard, subfissile to sub blocky in larger cuttings, commonly soft and dispersive.

340 – 450 m Interbedded CLAYSTONE, SILTSTONE and SANDSTONECLAYSTONE: brown to dark red, dusky red, green to grayish green, grades to argillaceous SILTSTONE in part, firm to moderately hard and subfissile to sub blocky in larger cuttings, commonly soft and dispersive with negligible consistency.SILTSTONE: brown to reddish brown, light to medium grey, light green grey, argillaceous, very finely arenaceous, firm to moderately hard, subfissile to sub blocky.SANDSTONE: very fine to fine, rarely coarse, clear to translucent in part, light to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor off white argillaceous matrix, trace to common and green lithics and occasional mica flakes, friable to moderately hard aggregates, loose in part, tight to nil visual porosity.

450 – 570 m Interbedded SILTSTONE, SANDSTONE and CLAYSTONESILTSTONE: dominantly light to medium green grey, red brown to dusky red decreasing with depth, light to medium grey, very argillaceous, arenaceous in part, siliceous in part, trace to common carbonaceous flakes and dark green lithics, dispersive to firm, rarely moderately hard, subblocky to subfissile.SANDSTONE: very fine to fine, clear to translucent in part, light green to occasional medium grey, off white, moderately sorted, subangular to subrounded, weak to occasionally strong calcareous cement, minor to common off white argillaceous matrix, trace to common green lithics, trace carbonaceous, friable to moderately hard aggregates, loose in part, poor visual porosity trace carbonaceous specks, very poor to poor visual porosityCLAYSTONE: light to medium green grey, brown to dark red decreasing with depth, grades to argillaceous SILTSTONE in part, firm to moderately hard, subfissile to sub blocky in larger cuttings, commonly soft and dispersive.

BANDANNA FORMATION [Late Permian]570.0 – 703.0 metres Thickness: 133.0 metres

570.0 – 572.0 m COALCOAL: black, shiny to vitreous, brittle, angular to blocky, conchoidal to sub conchoidal fracture

572.0 -588.5 m SILTSTONE with interbedded SANDSTONE.SILTSTONE: dominantly light to medium grey, occasionally dark grey, argillaceous and arenaceous in part grading to very fine sandstone, siliceous in part, trace to common carbonaceous matter including carbonised leaf matter, dispersive to firm, rarely moderately hard and splintery, subblocky to subfissile.

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SANDSTONE: very fine to fine, clear to translucent in part, light grey to medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor to common off white argillaceous matrix, trace lithics and mica flakes, carbonaceous in part, friable to moderately hard aggregates, loose in part, very poor to tight visual porosity.

588.5 – 596.0 COAL with interbedded SILTSTONECOAL: black, shiny, vitreous, brittle, sub-fissile to sub-blocky, hackly to uneven fracture, conchoidal in partSILTSTONE: as above

596.0 – 617.0 m SILTSTONE with minor SANDSTONESILTSTONE : dominantly light to medium grey, dark grey increasing with depth, argillaceous and arenaceous in part, siliceous in part, non calcareous, trace to common carbonaceous matter, dispersive to firm, rarely moderately hard, subblocky to subfissile.SANDSTONE: very fine to fine, clear to translucent in part, light grey to medium grey, off white, moderately sorted, subangular to subrounded, trace weak calcareous cement, minor to common off white argillaceous matrix, trace lithics and mica flakes, friable to moderately hard aggregates, loose in part, very poor to tight visual porosity.

617.0 – 630.0 m COAL with interbedded SILTSTONE COAL: black, shiny, brittle, angular and splintery to blockySILTSTONE: dominantly light to medium grey, dark grey increasing with depth, argillaceous and arenaceous in part, siliceous in part, non calcareous, trace to common carbonaceous matter, dispersive to firm, rarely moderately hard, subblocky to subfissile.

630.0 – 703.0 m SILTSTONE with minor SANDSTONE and occasional CALCITE SILTSTONE: dominantly light to medium grey, occasionally dark grey, argillaceous and arenaceous in part, siliceous in part, non calcareous, trace to common carbonaceous matter, dispersive to firm, rarely moderately hard, subblocky to subfissile.SANDSTONE: very fine to fine, clear to translucent in part, light grey to medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor to common off white argillaceous matrix, trace lithics, friable to moderately hard aggregates, very poor to tight visual porosity.CALCITE: clear to frosted white, angular, occasionally columnar crystalline shell fragments

BLACK ALLEY SHALE [Late Permian]703.0 – 1024.9 metres Thickness: 321.9 metres

703.0 – 711.0 m Interbedded SILTSTONE, SANDSTONE and TUFF, accessory CALCITE SILTSTONE: dark grey to medium blue grey, increasingly black, argillaceous, very finely arenac eous grading to very fine sandstone in part, common dark green to black lithics, occ. pyrite, moderately hard to hard, subfissile to sub blocky.SANDSTONE: very fine to fine, clear to translucent in part, light to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor off white argillaceous matrix, trace to common green lithics and occasional mica flakes, friable to moderately hard aggregates, loose in part, tight to nil visual porosity, no fluorescence. Fine to medium grains of crystalline sparry calcite present as accessory mineral, possibly precipitated along faulted zonesTUFF: light to medium grey, off white to cream, very fine dark to light green or occasionally black lithics in aphanitic matrix, firm to moderately hard, subfissile to splintery shards.

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711.0 – 717.0 m CALCARENITE overlying TUFFCALCARENITE: fine to medium, rarely coarse, white frosted cryptocrystalline to occasionally clear sparry, angular to splintery calcite with very fine to fine sand in cemented aggregates, hard to very hard, poor to nil visual porosity, no fluorescenceTUFF: light grey to medium light grey, angular to splintery, sub fissile, firm to hard, common dark grey to black very fine lithics, rarely layered.

717.0 – 744.0 m TUFF with interbedded SILTSTONE and SANDSTONETUFF: light to medium grey, off white to cream, very fine dark to light green or black lithics in

aphanitic matrix, firm to moderately hard, sub-fissile to splintery shards.SILTSTONE: dark grey to medium blue grey, black, argillaceous, very finely arenaceous grading to very fine sandstone in part, common dark green to black lithics, occasional pyrite grains, moderately hard to hard, sub-fissile to sub blocky.SANDSTONE: very fine to fine, clear to translucent in part, light to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor to strong calcareous cement, minor off white argillaceous matrix, trace to common green lithics and occasional mica flakes, friable to moderately hard aggregates, loose in part, tight to nil visual porosity, no fluorescence.

744.0 - 790.0 m SILTSTONE with minor CLAYSTONESILTSTONE: very dark grey to black, argillaceous grading to CLAYSTONE in part, angular to splintery, occasionally sub-blocky, non-calcareous, trace to moderately common dark lithics and mica, carbonaceous in part, firm to hard.CLAYSTONE: light to medium dark grey, soft to dispersive, firm and siliceous in part.

790.0 – 808.5 m Interbedded SILTSTONE, SANDSTONE and TUFFSILTSTONE: dark grey to medium blue grey, increasingly black, argillaceous, very finely arenaceous grading to very fine sandstone in part, common dark green to black lithics, occasional pyrite, moderately hard to hard, subfissile and splintery to sub blocky.SANDSTONE: very fine to fine, clear to translucent in part, light to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor off white argillaceous matrix, trace green lithics and occasional mica flakes, spines and shell fragments, friable and disaggregated to moderately hard aggregates, loose in part, poor to fair inferred visual porosity, no fluorescence.TUFF: light to medium grey, off white to cream, very fine dark to light green or occasionally black lithics in aphanitic matrix, firm to moderately hard, subfissile to splintery shards.

808.5 – 870.0 m SANDSTONE with minor SILTSTONE and TUFF.SANDSTONE: very fine to fine, clear to translucent in part, light to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor off white argillaceous matrix, trace green lithics and occasional mica flakes, very calcareous with common sparry to cryptocrystalline calcitic shell fragments and spines, no fluorescence, friable and disaggregated to moderately hard aggregates, loose in part, poor to fair inferred visual porosity, no fluorescence.SILTSTONE: dark grey to medium blue grey, medium brown, argillaceous, very finely arenaceous grading to very fine sandstone in part, dark green to black lithics, trace pyrite, moderately hard to hard, subfissile and splintery to sub blocky, bladed in part.TUFF: light grey to medium light grey, buff to light brown in part, angular to splintery, sub fissile, firm to hard, common dark grey to black very fine lithics, rarely layered.

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870.0 – 903.0 m SILTSTONE with SANDSTONE, minor TUFF and COALSILTSTONE: dark grey to medium blue grey, occasionally brown, argillaceous, very finely arenaceous grading to very fine sandstone in part, common dark green to black lithics, occasional pyrite grains, moderately hard to hard, sub-fissile to sub blocky.SANDSTONE: very fine to fine, clear to translucent in part, light to occasional medium grey, off white, moderately sorted, subangular to subrounded, minor to strongly calcareous with fine to medium grain spines and common fractured shell fragments, minor off white argillaceous matrix, trace pyrite and occasional mica flakes, friable to weakly consolidated, commonly loose, fair inferred visual porosity, no fluorescence.TUFF: light to medium grey, off white to cream, occasionally pale green, firm to moderately hard, sub-fissile to splintery shards.COAL: black, shiny, vitreous, hard and brittle, sub angular to blocky, conchoidal fractures in part

903.0 – 912.5 m SANDSTONE and minor SILTSTONESANDSTONE: very fine to fine, grades to arenaceous SILTSTONE, grey to light grey green, subangular to subrounded, moderately sorted, strong calcareous cement, light grey argillaceous matrix, common green grey lithics, common fossil fragments, occasional pyrite, moderately hard to hard, poor visual porosity, no fluorescence.SILTSTONE: dark grey to grey black, argillaceous, very finely arenaceous grading to very fine sandstone in part, common dark green to black lithics, occasional pyrite present as coating along grain surfaces and as loose grains, moderately firm to hard, subfissile to sub blocky. Calcite present as occasional columnar crystalline calcite in shell fragments and as medium to coarse grains.

912.5 – 975.0 m SILTSTONESILTSTONE: dark grey to grey black, argillaceous, very finely arenaceous grading to very fine sandstone in part, common dark green to black lithics, occasional pyrite present as coating along grain surfaces and as loose grains, moderately firm to hard, subfissile to sub blocky. Calcite present as columnar crystalline shell fragments and as medium to coarse grains.

975.0 - 981.5 m SILTSTONE, SANDSTONE and fossiliferous LIMESTONESILTSTONE: dark grey to grey black, argillaceous, very finely arenaceous grading to very fine sandstone in part, common dark green to black lithics, occasional pyrite present as coating along grain surfaces and as loose grains, moderately firm to hard, subfissile to sub blocky.SANDSTONE: fine to very coarse, light grey to translucent to clear, poorly sorted, numerous highly fractured coarse to very coarse grains with subconchoidal angular fractures (angularity contrasts with rounded grains indicating a significant textural inversion: grains apparently sourced from very coarse to granule bed and fractured by bit), occasional recrystallisation/ crystal faces, finer grains subangular to subrounded, minor calcareous cement, calcite present as columnar crystalline shell fragments and as crystalline medium to coarse grains, occasional to common calcitic spines, poor to fair visual porosity, no fluorescence.LIMESTONE: medium to very coarse, clear to medium brown, firm, splintery, angular to subangular fragments, common crystal faces, moderately common rhombohedral sparite as fine to medium grains, conspicuous fossiliferous character in part.

981.5 – 987.0 m Interbedded SILTSTONE and SANDSTONESILTSTONE: dark grey to grey black, argillaceous, very finely arenaceous grading to very fine sandstone with increasing depth, common black lithics, occasional pyrite present as drusy coating along grain surfaces and as loose grains, moderately firm to hard, subfissile to sub blocky.SANDSTONE: fine to very coarse, becoming dominantly fine to very fine with depth, light grey to translucent to clear, poorly sorted, common highly fractured coarse to very coarse grains with subconchoidal angular fractures, faces occasionally partly or largely recrystallised, occasional coarse to very coarse grains well to moderately well rounded with frosted surfaces, coarse grains becoming less common with depth, finer grains subangular to subrounded, minor calcareous cement, poor to fair visual porosity, no fluorescence.

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987.0 – 999.0 m SANDSTONE and minor SILTSTONESANDSTONE: fine to occasional very coarse, becoming dominantly fine to very fine with depth, light grey to translucent to clear, poorly sorted, occasional fractured medium to very coarse grains with subconchoidal angular fractures, occasional moderately well rounded coarse to very coarse grains with frosted surfaces, coarse grains becoming less common with depth, finer grains subangular to subrounded, minor calcareous cement, very argillaceous in part, trace pyrite, poor to fair visual porosity, no fluorescence.

SILTSTONE: dark grey to grey black, argillaceous, very finely arenaceous grading to very fine sandstone, black lithics, occasional pyrite coating, moderately firm to hard, subfissile to sub blocky.

999.0 – 1024.9 m SILTSTONE and SANDSTONESILTSTONE: dark grey to grey black, argillaceous, very finely arenaceous grading to very fine sandstone with increasing depth, common black lithics, occasional pyrite present as drusy coating along grain surfaces and as loose grains, moderately firm to hard, subfissile to sub blocky.SANDSTONE: fine to rarely very coarse, dominantly fine to very fine grading to arenaceous siltstone, light grey to translucent to clear, poorly sorted, occasional highly fractured coarse to very coarse grains with angular fractures, occasional well to moderately well rounded coarse to very coarse grains with frosted surfaces, finer grains subangular to subrounded, minor calcareous cement, trace fossil shell fragments, poor to fair visual porosity, no fluorescence.

TINOWON FORMATION [Late Permian]1024.9 – 1161.7 metres Thickness: 136.8 metres

1024.9 – 1141.6 m SANDSTONE with minor SILTSTONESANDSTONE: fine to very coarse, dominantly fine to very fine loose, or fine to very fine aggregates grading to arenaceous siltstone, loose medium to very coarse grains, light grey to translucent to clear, very poorly sorted, occasional highly fractured medium to very coarse grains with angular fractures, occasional well to moderately well rounded coarse to very coarse grains with frosted surfaces, finer grains subangular to subrounded, trace to nil calcareous cement, firm to moderately hard with poor visual porosity in aggregates, moderate to good visual porosity inferred from loose grains, trace dull yellow mineral fluorescence.SILTSTONE: dark grey to grey black, argillaceous, very finely arenaceous grading to very fine sandstone, common black lithics, finely laminated in part, occasional pyrite, moderately firm to hard, subfissile to sub blocky.

Wallabella Coal Member1141.6 – 1161.7 m COAL and SILTSTONECOAL: black to very dark grey brown, earthy to dull, brittle to moderately hard, sub-blocky to hackly/ uneven fracture, common disseminated pyrite, grading to carbonaceous siltstone.SILTSTONE: dark grey to black, brown grey, argillaceous, arenaceous grading to very fine sandstone, carbonaceous grading to carbonaceous siltstone, trace to common pyrite, sub-blocky.

?MUGGLETON FORMATION [Late Permian]1161.7 – 1211.0 metres Thickness: 49.3 metres

1161.7 – 1211.0 SILTSTONE and SANDSTONEMedium dark grey to very dark grey, grey-black, argillaceous, arenaceous grading to very fine sandstone, locally carbonaceous grading to carbonaceous siltstone, firm to occasionally very hard, soft and dispersive in part, dominantly sub-blocky to amorphous.SANDSTONE: medium dark grey-translucent, very fine to coarse, very coarse in part, poorly sorted, minor to occasionally strong siliceous cement, minor calcareous cement, trace to moderatel common lithics and pyrite, commonly loose friable aggregates, moderately hard aggregates in part, poor to tight visual and poor to fair inferred porosity, no fluorescence.

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TIMBURY HILLS FORMATION [Devonian]1211.0 – 1614.2 metres Thickness: 403.2+ metres

1211.0 – 1451.0 m SANDSTONE and SILTSTONESANDSTONE: light green grey, light grey to milky/translucent to clear, light blue grey in part, very fine to rarely very coarse, dominantly fine to very fine loose, or fine to very fine aggregates grading to arenaceous siltstone, loose medium to very coarse grains, poorly sorted, medium to coarse grains with angular fractures, rare grains with frosted surfaces but commonly angular and fractured milky vein quartz, tabular to rarely saccharoidal in part, finer grains sub-angular to sub-rounded, trace to nil calcareous cement, siliceous, firm to moderately hard with poor visual porosity in aggregates, moderate to good visual porosity inferred from loose grains, no fluorescence.SILTSTONE: medium blue grey to dark green grey, occasional dark grey, very argillaceous grading to blue grey claystone, very finely arenaceous grading to very fine sandstone in part, finely laminated in part, micro-micaceous to sericitic, weak phyllitic parting grading to metasiltstone, occasional pyrite, moderately firm to hard, subfissile to sub blocky, occasionally splintery.

1451.0 – 1465.0 m METASANDSTONE, CLAYSTONE, METASILTSTONE and QUARTZITEMETASANDSTONE: as above, light green grey, red brown, light grey to clear, grains and aggregates commonly coated with red claystone, penetration of fractured aggregates by red brown clay and ferric iron staining, occasional medium to coarse white quartzite.CLAYSTONE: red brown claystone, highly dispersive, no solid cuttings identified but present as clay coating on metasandstone, occasional penetration and red brown staining within cuttings, extensive colouration of and presumed losses over shaker screens.METASILTSTONE: as above, medium blue grey to dark green grey, occasional dark grey, medium brown, some grains show penetration by red brown iron staining.QUARTZITE: white to green grey, light brown grey, very fine to medium, and medium to very coarse clear to milky sub-rounded to rounded quartz grains in very hard siliceous matrix, nil visual and inferred porosity.

1465.0 – 1615.0 m METASILTSTONE and minor METASANDSTONEMETASILTSTONE: as above, medium grey to light grey, green grey, argillaceous in part, grades to very fine siliceous METASANDSTONE, commonly massive as trace cream to white lithic grains assimilated, micro-micaceous, trace dark lithics, hard to predominantly very hard, sub fissile with irregular fracture, blocky to sub-angular. METASANDSTONE grades to QUARTZITE in part.METASANDSTONE: medium grey, light grey to clear, rarely green grey, very fine to rarely very coarse, individual grains silicified and commonly indistinct (becoming massive) grading to arenaceous metasiltstone, rare loose medium to coarse grains with angular fractures, loose grains commonly composite and recrystallised with frosted and fractured surfaces, sub-angular to angular, rare pyrite, trace black lithics, trace carbonaceous matter and laminae, trace to common calcareous cement, trace crystalline calcite, rare aggregates of very argillaceous metasandstone, nil visual porosity, poor to nil inferred porosity, no fluorescence. METASANDSTONE grades to QUARTZITE in part.

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TOTAL DEPTHDriller: 1615.0 metresLogger: 1614.2 metres

3.5 Hydrocarbon Shows

3.5.1 Rewan Formation

No significant shows were recorded in the Rewan Formation

3.5.2 Bandanna Formation

570 metres – 3717 units (100/Tr)Coal: black, vitreous, brittle, fissile, hard, hackly, sub-conchoidal fracture.

589 metres – 2502 units (100/Tr)Coal: black, vitreous, brittle, fissile, hard, hackly.

592.5 metres – 2691 units (100/-)Coal: black, vitreous, brittle, fissile, hard, hackly, sub-conchoidal fracture.

621 metres – 1448 units (100/Tr)

Coal: black, subvitreous to dull in part, brittle, subfissile to sub blocky, hackly to uneven fracture, locally sub-conchoidal, striated in part.

624.5 metres – 1448 units (87/8/4/1/Tr)

628 metres – 1245 units (100/Tr/Tr)Coal: black, subvitreous, brittle, sub blocky, angular fracture, argillaceous in part.

3.5.3 Black Alley Shale

770 metres – 217-278 units (99/1/Tr)Coal: black, dull to earthy, sub-vitreous, brittle, moderately hard, uneven to hackly fracture, grades to carbonaceous siltstone.

782 metres – 209 units (99/1/Tr)Sandstone: predominantly fine, occasionally medium, weak calcareous and siliceous cement, very poor to poor inferred and visual porosity, no fluorescence.

794 - 800 metres – 337-448 units (100/Tr)Coal: black, dull to earthy, firm to brittle, sub blocky, uneven fracture, grades to carbonaceous siltstone.

859 - 865 metres – 232 units (98/2)Sandstone: very fine to medium, siliceous cement, trace calcareous cement, fair inferred porosity, poor to fair visual porosity, no fluorescence.

986 - 1002 metres – 200-329 units (97/2/1)Sandstone: very fine to granular, predominantly medium to coarse, abundant off-white argillaceous matrix, very poor to fair inferred porosity, very poor visual porosity, no fluorescence.

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3.5.4 Tinowon Formation

1080 –1086 metres – 512 units (89/8/2/1)Sandstone: off white to pale grey, frosted, very fine to coarse, well sorted, subangular to subrounded, weak calcareous cement, rare to trace off white argillaceous matrix, poor to fair inferred porosity, poor visual porosity, 30% dim light green fluorescence, pip-point to patchy, no cut, very slow blooming crush cut, thin to moderately thick ring residue.

1134 – 1143 metres – 170 units (81/13/5/1)Sandstone: clear to translucent, very fine to predominantly medium, occasionally coarse, pale to medium grey argillaceous matrix, 10-15% dim yellow-white pinpoint fluorescence, very slow blooming cut, slow crush cut, thin film residue.

1149 -1162 metres – 213-750 units (77/18/4/1)Coal: black, dull to earthy, firm to brittle, sub blocky to hackly, uneven fracture, common disseminated pyrite, grades to carbonaceous siltstone.

3.5.5 Muggleton Formation

1171 –1174 metres – 220-400 units (94/5/1/Tr)Sandstone: clear to translucent, white, very fine to fine, commonly medium to coarse, moderately well sorted, angular to subrounded, strong calcareous cement, trace off white argillaceous matrix, brittle to moderately hard, poor inferred and visual porosity, no fluorescence.

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4.0 DISCUSSION AND CONCLUSIONS

Fairview 77 was a successful exploration well in the Fairview Field. Three separate coal units in the Bandanna Formation were intersected by the well and possibly the longest penetration of the Timbury Hills basement in the region (403 metres) was achieved. Total net coal thickness was 12.85 metres. The Rewan Formation objective proved to be dominated by distal and poorly sorted, labile facies consequently sands were very poorly developed or absent.

Extraction of coal seam gas results in concomitant production of substantial volumes of water consequently the basement is an objective because of its potential for water disposal should suitable fractures exist. Salinity of the co-produced water limits options for environmentally friendly disposal and down-hole injection to a stratigraphically lower horizon is to be evaluated. Fairview 77 was cased with the casing shoe set above a cement plug at the top of the Timbury Hills Formation; this configuration will allow future access to the open hole section in basement should evaluation of the zone be required.

Fairview 77 intersected shallow formations close to prognosis with errors typically les than 10 metres. Stratigraphy in the section below the Black Alley Shale, however, remains conjectural, and the suggested tops may require revision following more regional correlations. Discrepancies between suggested tops and prognoses therefore shold be treated with caution. Logs showed all Permo-Triassic sands to be tight with porosity either clay choked or occluded by lithics. Invasion profiles were poor to non-existent with shallow, intermediate and deep laterolog curves typically being superimposed, and SP deflection was minimal. The basement section was extensively silicified with meta-sandstone and meta-siltstone grading to quartzite; conventional porosity was negligible but fracture porosity and concomitant permeability may allow for water disposal..

Preliminary interpretation of the FMI showed the presence of fractures and a lost circulation zone at 1427 metres further indicated potential for fluid injection. Detailed studies of regional stress regimes may indicate preferred locations however the rapid deviation of the drill bit in response to dipping basement lithology confirms that this tendency will need to be anticipated in future drilling programmes targeting preferred stress axes.

Fairview 77 has contributed to knowledge of coal development across the Fairview Field and provided well control against which to further calibrate seismic prognosis. Knowledge of the Timbury Hills basement lithology has been significantly increased and FMI imaging logs offer the opportunity for detailed analyses of structural trends. References to regional basement lithology in published data suggest that the degree of silicification in basement has been understated conversely Fairview 77 may have been drilled in a region of elevated heat flow due to proximity to the Roma Granite.

5.0 REFERENCES

Tipperary Oil and Gas (Australia) Pty Ltd:

Fairview 77 Drilling Programme, PL 100, unpublished report prepared for Tipperary Oil and Gas (Australia) Pty Ltd, June 2003.

Queensland Department of Mines and Energy

- Green, P.M. (Editor), 1997: The Surat and Bowen Basins, southeast Queensland, 1997, Queensland Energy and Review Series, Queensland Department of Mines and Energy.

-


Fairview #77

Attachment 1 Cuttings

descriptions

-

Spudded well @ 00:00 hours July 31st 2003

210 30

10

60

CLAYSTONE: dusky to dark red, pred dark reddish brown, medium dark grey, grades to argillaceous SILTSTONE in part, firm to moderately hard, subfissile to sub blocky.SILTSTONE: light to medium green, light green grey, argillaceous, very finely arenaceous, carbonaceous in part, trace firm to moderately hard, subfissile to sub blocky.SANDSTONE: clear to translucent in part, light to occasional medium grey, off white, very fine to medium, moderately sorted, subangular to subrounded, minor weak calcareous cement, minor off white argillaceous matrix, trace to common mica flakesand lithics, friable to moderately hard aggregates, loose in part, nil to poor visual porosity.

Background gas0 – 5 units, 100% C1

220 40 CLAYSTONE: as above.30 SILTSTONE: as above.

SANDSTONE: as above, very fine to fine, common white30 argillaceous matrix, common loose.

230 40 CLAYSTONE: as above.30 SILTSTONE: as above.30 SANDSTONE: as above, hard in part.

240 tr 70

30

CLAYSTONE: as above.SILTSTONE: as above, dark grey green, medium to dark green, dusky to dark red to brown.SANDSTONE: as above.

250 80 SILTSTONE: as above, dominantly dusky to dark red.20 SANDSTONE: as above.

260 70 SILTSTONE: as above.30 SANDSTONE: as above.


280 6040

SILTSTONE: as above, dominantly green grey, argillaceous.SANDSTONE: as above, weak calcareous cement, moderate siliceous cement.

290 90 SILTSTONE: as above, 80% dusky to dark red, red brown, 20%green grey, commonly argillaceous, siliceous in part.

10 SANDSTONE: as above.300 90 SILTSTONE: as above, predominantly dusky to dark red.

10 SANDSTONE: as above.310 80

20

SILTSTONE: as above, dominantly dusky to dark red, very argillaceous in part.SANDSTONE: as above, very poor visual porosity, no fluorescence.

Minor peak 22 units, 100%C1

320 9010

SILTSTONE: as above, predominantly dusky to dark red, medium to dark grey in part.SANDSTONE: as above.

330 30

70

SILTSTONE: as above, grey red to very dusky red. SANDSTONE: green grey, dark green grey, very fine to occasional medium,

moderately sorted, subangular to subrounded, minor calcareous cement, trace to common off white argillaceous matrix, trace mica flakes and lithics, friable to moderately hard aggregates, trace loose in part, poor to verypoor visual porosity, no fluorescence.

340 20 SILTSTONE: as above, dusky red and grey green.80 SANDSTONE: as above, occasional medium grains.


- 360 20

80

SILTSTONE: as above, predominantly dusky to dark red brown, light green grey in part, trace micromicaceous, firm to moderately hard, subfissile to subblocky.SANDSTONE: very fine to predominantly medium, light to medium grey, light green grey, clear to translucent, off white, subangular to subrounded, weak to moderately strong calcareous cement, weak siliceous cement in part, commonlithics, trace biotite, friable to moderately hard, loose in part, very poor visual porosity, no fluorescence

Minor peak 45 units @ 355m, 100%C1

370 2080

SILTSTONE: as above.SANDSTONE: as above.

Background gasca. 10 units

380 4060


390 2080


400 7030

SILTSTONE: as above, med to dark reddish brown, light to mediumgrey to greenish grey, trace micaceous and

carbonaceous, firm to moderately hard, subblocky to subfissile. SANDSTONE: as above, no fluorescence.

410 9010

SILTSTONE: as above.SANDSTONE: clear to translucent in part, light to occasional medium grey, off white, light to medium green grey, very fine to occasional medium, moderately sorted, subangular to subrounded, minor calcareous cement, trace to common off white argillaceous matrix, trace mica flakes and lithics, friable tomoderately hard aggregates, trace loose in part, tight to very poor visual porosity.


420 80

20

SILTSTONE: predominantly medium dark red brown, dusky red, common light to medium green grey, argillaceous, arenaceous in part, trace micromicaceous and carbonaceous, siliceous in part, firm to moderately hard, subblocky to subfissile.SANDSTONE: as above, no fluorescence.

Background gas ca. 10 units

430 8020


440 6040


450 8020

SILTSTONE: as above.SANDSTONE: as above very fine to fine, pale grey, green grey, moderately to well sorted, subangular to sub rounded, moderately siliceous cement, argillaceous matrix, poor to tight visual porosity, no fluorescence.


460 3070


470 6040


480 6040

SILTSTONE: as above.SANDSTONE: clear, off white, light to occasional medium grey, light to medium green grey, very fine to fine, moderately well sorted, subangular to subrounded, common weak to moderately siliceous cement, trace weak calcareous cement, common off white argillaceous matrix, trace glauconite and lithics, friable tomoderately hard aggregates, trace loose in part, tight to very poor visual porosity.

Background gas15 – 20 units, 100% C1

490 8020


500 4060

SILTSTONE: as above.SANDSTONE: fine to very fine, clear to translucent, off white to pale grey, light green grey, very, moderately to well sorted, subangular to subrounded, weak to moderate siliceous cement, friable in part, common off white to light grey argillaceous matrix,trace green lithics, mica flecks, carbonaceous specks, poor visual porosity.

- 510 100

Tr

SILTSTONE: grey red to very dusky red, trace medium to medium dark grey and light to medium green grey, argillaceous, arenaceous in part, occasional micromicaceous, siliceous in part, firm to moderately hard, subblocky to subfissile.SANDSTONE: as above.

Background gas15 – 20 units, 99/1/-/-

520 100Tr


530 9010


540 3070

SILTSTONE: as above.SANDSTONE: fine to very fine, clear to translucent, off white to pale grey, light green grey, very, moderately to well sorted, subangular to subrounded, weak to moderate siliceous cement, friable in part to moderately hard aggregates, common off white to light grey argillaceous matrix, trace green lithics, mica flecks,carbonaceous specks, poor visual porosity.

543 7030

SILTSTONE: pale to medium grey, medium to dark green grey, light to medium brown grey, argillaceous, arenaceous in part, carbonaceous specks, firm to predominantly moderately hard, subblocky to subfissile.SANDSTONE: as above.

Background gas15 - 20 units, 99/1

546 7030


549 6040


552 70

30

SILTSTONE: pale to medium grey, medium to dark green grey, light to medium brown grey, argillaceous, arenaceous in part grading to very fine sandstone, carbonaceous specks, firm to predominantly moderately hard, subblocky to subfissile.SANDSTONE: as above.

555 4060


558 3070

SILTSTONE: as above.SANDSTONE: as above grading to arenaceous siltstone in part, tight to very poor visual porosity, no fluorescence.

Background gas20 - 30 units, 99/1

561 3070


564 8020


567 70tr

30

SILTSTONE: as above. SANDSTONE: as above.LIMESTONE: pale brown, off white, micritic, microcrystalline, hard to very hard in part, fractured to splintery grains

570 5050tr

SILTSTONE: as above. SANDSTONE: as above.LIMESTONE: as above.

Background gas ca. 40 units,99/1

573 tr 100

SILTSTONE: as above.COAL: black, shiny, vitreous to subvitreous, brittle topredominantly hard, blocky to subfissile, even to conchoidal fractures, striated in part.

Coal peak 3717 units,100/trace/-/-

576 100tr

SILTSTONE: as above.COAL: as above.

579 100tr

SILTSTONE: as above.LIMESTONE: as above.

582 9010


585 90

10

SILTSTONE: medium dark grey, grey brown, argillaceous, arenaceous in part, occasional micromicaceous, siliceous in part, sucrosic in part, firm to moderately hard, subblocky to subfissile.LIMESTONE: as above.

588 100tr


- 591 70

30SILTSTONE: as above.COAL: as above, dull to subvitreous in part.

Coal Gas Peak at590 m, 2502units, 100/Tr

594 6040

SILTSTONE: as above.COAL: black, vitreous to subvitreous, brittle, hard, blocky to subfissile, uneven to angular fracture, subconchoidal fracture in part, striations

Coal Gas Peak at596 m, 2691units, 100/Tr

597 5050

SILTSTONE: as above.COAL: as above.

600 100tr

SILTSTONE: as above. COAL: as above.

Background gas 160 units, 100%C1

603 100tr


606 100tr


609 100tr


612 100tr

SILTSTONE: medium to dark grey, pale grey, medium brown grey in part, argillaceous, arenaceous in part, carbonaceous in part, firm to moderately hard, subfissile to subblocky .LIMESTONE: as above

615 9010tr

SILTSTONE: as above.SANDSTONE: very fine to fine grain, off white to translucent, pale grey to medium grey, well sorted, subangular to subrounded, poor to tight visual porosity, no fluorescence.LIMESTONE: as above.

Background gas 120 – 160 units,100% C1

618 9010

SILTSTONE: as above.SANDSTONE: as above and brown grey. COAL: as above.

621 2020tr

60

SILTSTONE: as above.SANDSTONE: as above, locally common mica, hard aggregates in part, very poor visual porosity, no fluorescence.LIMESTONE: as aboveCOAL: black, vitreous to sub vitreous, hard, subblocky to subfissile, uneven hackly to subconchoidal fracture, striated.

624 602020tr

SILTSTONE: as above. SANDSTONE: as above. COAL: as above.LIMESTONE: as above

Coal Gas Peak at625 m, 1448units, 100/trace/-

627 1020tr

70

SILTSTONE: as above. SANDSTONE: as above.LIMESTONE: as above, off white to white. COAL: as above

Coal Gas Peak at628 m, 1245units, 100/tr/tr/-

630 1050tr

40

SILTSTONE: as above. SANDSTONE: as above.LIMESTONE: as above. COAL: as above.

633 2060tr

20

SILTSTONE: as above. SANDSTONE: as above. LIMESTONE: as above.COAL: as above.

269 units over coal, 100% C1

636 7030


- 639 60

40

SILTSTONE: as aboveSANDSTONE: very fine to fine grain, off white to translucent, pale grey to medium grey, well sorted, moderate calcareous cement, trace siliceous cement, subangular to subrounded, very poor to tight visual porosity, no fluorescence.

642 6040


645 7030


648 8020

SILTSTONE: as above.SANDSTONE: as above, off white, pale grey to medium grey.

651 90

10

SILTSTONE: medium dark to dark grey, pale grey, argillaceous, arenaceous in part, siliceous in part, trace to common carbonaceous flecks and laminae, firm to moderately hard, subblocky to subfissile.SANDSTONE: very fine to fine grain, off white to translucent, pale grey to medium grey, well sorted, moderate calcareouscement, trace siliceous cement, subangular to subrounded, very poor to tight visual porosity, no fluorescence.

Background gas80 – 120 units, 97/2/1/-

654 100tr


657 9010

SILTSTONE: as above. SANDSTONE: as above.

Background gas80 - 120 units, 100/tr

660 2080

SILTSTONE: as above.SANDSTONE: as above, pale grey to light brown grey, medium dark grey, no fluorescence.

663 6040

SILTSTONE: as aboveSANDSTONE: as above.

666 4060

SILTSTONE: as above, medium brown to green grey.SANDSTONE: as above, medium grey.

669 8020

SILTSTONE: as above, medium dark grey to grey, brown in part.SANDSTONE: as above, off white, pale grey.

672 1090


675 2080

SILTSTONE: as above.SANDSTONE: fine to very coarse, predominantly medium to coarse, off white, clear to translucent, pale grey, moderate to poorly sorted, subangular to subrounded, commonly angular, argillaceous, weak to moderately strong calcareous cement, quartz overgrowths, common fractured quartz grains, green lithics and carbonaceous specks, moderately hard to hard aggregates, friable in part, loose in part, tight to nil visual porosity, trace fluorescence

Fluorescence: 669-675m, 40%to trace dull yellow green pin point predominantly patchy fluorescence, very slowblooming cut, thin ring residue

678 3070

SILTSTONE: as above.SANDSTONE: as above, no fluorescence.

681 4060


Background gasca. 60 units, 96/4

684 6040


687 50tr

50

SILTSTONE: as above. SANDSTONE: as above.TUFF: pale grey, pale brown grey, off white, microcrystalline, siliceous grading to siltstone, abundant accessory black to cream white lithics, hard to very hard in part, soft and friable inpart, sub fissile to splintery.

- 690 70

1020

SILTSTONE: dark grey, dark grey black, very finely arenaceous in part, argillaceous, carbonaceous specks, moderately hard to hard, very hard in part, subfissile to subblocky, fissile in part.SANDSTONE: as above. TUFF: as above

693 306010

SILTSTONE: as above.SANDSTONE: as above. TUFF: as above.

696 702010

SILTSTONE: as above. SANDSTONE: as above.TUFF: as above.

699 10

1080

SILTSTONE: dark to very dark brown, rarely very dark grey, argillaceous, siliceous grading to TUFF in part, minor to common microcarbonaceous and lithic flecks, firm to hard, very hard in part, subblocky to subfissile.SANDSTONE: as above. TUFF: as above.

702 90

10

SANDSTONE: very fine to very coarse, predominantly medium to coarse, off white, clear to translucent, very pale grey, poor to moderately sorted, subangular to subrounded, fractured and splintered in part, trace medium to dark green lithics, friable to moderately hard, grains loose in part, tight to nil visual porosity, no fluorescence.TUFF: as above.

130 unit peak at 702m, 99/1/-/-

705 108010

SILTSTONE: as above. SANDSTONE: as above.TUFF: as above

165 unit peak at 705m, 100/-

708 4060tr

SILTSTONE: as above.SANDSTONE: as above. TUFF: as above

Background gas 60 units, 100/-/-

711 6040


714 7030

SANDSTONE: as above.TUFF: as above

717 1090

SANDSTONE: as above.TUFF: medium grey, medium dark grey, light pale grey, minor cream to off white, microcrystalline, very siliceous, abundant black and cream lithics, locally hard to firm, subblocky to fissile,common fractured fragments.

723 201070

SILTSTONE: as above.SANDSTONE: fine to medium, predominantly medium, cream to off white to pale grey, moderately well sorted, sub angular to angular, strong calcareous cement, trace siliceous cement, trace lithics, firm to hard, friable in part, very poor to tight visual porosity, no fluorescence.TUFF: as above.

726 101080

SILTSTONE: as above. SANDSTONE: as above.TUFF: as above

729 20

tr 80

SILTSTONE: dark to medium brown grey, pale grey, argillaceous, arenaceous in part, very fine carbonaceous laminae and inclusions, soft and dispersive, locally firm to hard, subblocky to fissile.SANDSTONE: as above. TUFF: as above.

732 tr 1090


735 80tr

20


- 738 90

10

SILTSTONE: medium dark grey to very brown grey, argillaceous, arenaceous, trace to common carbonaceous flecks and laminae, firm to moderately hard, dispersive in part, subblocky to subfissile.SANDSTONE: as above.

Background gas40 - 60 units, 98/2/-

741 8020

SILTSTONE: as above.TUFF: as above.

744 9010

tr

SILTSTONE: as above.SANDSTONE: fine to coarse, predominantly fine, off white to translucent, sub angular to sub rounded, weak to moderate siliceous cement, trace calcareous, trace very fine lithics, predominantly moderately hard to friable aggregates, poor to locally fair visual porosity, no fluorescence.TUFF: as above

Gas peak 200 units, 99/1/tr/tr

747 9010Tr


750 100tr tr


Background gas20 units,97/2/1/tr

753 80tr

20


756 100Tr

SILTSTONE: as above.TUFF: off white, very light grey, light brown grey,microcrystalline, very siliceous, waxy in part, common white and dark specks, fractured fragments in part, very hard.

Background gas20 units,96/3/1/-

759 100Tr


762 100tr

20

SILTSTONE: dark grey to predominantly dark grey black, medium to dark brown in part, argillaceous in part, siliceous in part, abundant micromicaceous and trace cream, off white and pale brown tuff fragments and dark lithics, moderately hard to hard, very hard in part, subblocky to sub fissile, fissile in part.TUFF: as above.

765 80tr

tr 20

SILTSTONE: as above. SANDSTONE: as above. TUFF: as above.COAL: black, brittle, brittle, moderately hard, uneven to subconchoidal fracture, dull to earthy, silty grading in part to carbonaceous siltstone.

Coal gas peak217 units, 99/1/tr

768 3050

1010

SILTSTONE: as above.SANDSTONE: fine to coarse, predominantly fine, occasionally medium, rarely coarse, clear to translucent, off white, sub angular to sub rounded, moderately well sorted, argillaceous, weak to moderate siliceous cement, trace calcareous cement, trace very fine lithics, minor pyrite, argillaceous, predominantly moderately hard to friable aggregates, loose coarse grains with trace quartz overgrowths, poor to locally fair visual porosity, no fluorescence.TUFF: as above. COAL: as above.

771 1090tr tr

SILTSTONE: as above SANDSTONE: as above. TUFF: as above.COAL: as above.

Background gas80 - 100 units, 94/5/1

- 774 tr

90tr

10

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, cream, pale to medium grey, microcrystalline, very siliceous, waxy in part, common white and dark specks, fractured fragments in part, firm to hard, sub fissile to sub blocky.COAL: black, dull to locally subvitreous, hard, brittle, sub fissile to sub blocky, locally silty grading to carbonaceous siltstone.

Gas peak over coal 278 units, 99/1/tr/tr

777 105040

SILTSTONE: as above.SANDSTONE: as above TUFF: as above.

780 Tr 1090tr

SILTSTONE: as above.SANDSTONE: as above, medium to coarse, commonly loose grains.TUFF: as above. COAL: as above.

783 Tr 30

70tr

SILTSTONE: as above.SANDSTONE: fine to coarse, predominantly fine, occasionally medium, rarely coarse, clear to translucent, off white, sub angular to sub rounded, moderately well sorted, argillaceous, weak to moderate siliceous cement, trace calcareous cement, trace very fine lithics, minor pyrite, argillaceous, predominantly moderately hard to friable aggregates, loose coarse grains with trace quartz overgrowths, poor to locally fair visual porosity, no fluorescence.TUFF: as above.COAL: black, dull to locally subvitreous, hard, brittle, sub fissile to sub blocky, locally silty grading to carbonaceous siltstone.

Gas peak 209 units, 99/1/tr

786 10

tr 90

SILTSTONE: dark brown grey, dark grey, grayish black in part, minor pale brown, argillaceous, arenaceous in part, trace mica and very fine lithics, trace carbonaceous, firm to hard, sub blocky to sub fissile, splintery in part.SANDSTONE: as above. TUFF: as above.

Background gas60 - 140 units, 94/5/1

789 1090


792 1090

SILTSTONE: as above.TUFF: off white, very light grey, pale yellow, pale brown grey to medium grey, microcrystalline, very siliceous, waxy in part, common white and dark specks, fractured fragments in part, firmto very hard, fissile to sub fissile.

795 2080

SILTSTONE: as aboveTUFF: as above.

798 tr 9010

SILTSTONE: as above. TUFF: as above.COAL: black, dull to locally subvitreous, hard, brittle, sub fissile to sub blocky, locally silty grading to carbonaceous siltstone.

Coal gas peak337 units, 100/tr/tr/tr

801 1090tr

SILTSTONE: as above. TUFF: as above.COAL: as above.

Coal Gas Peaks of342 and 448 units, 100% C1

804 30tr

70


Gas peak 247 units, 99/1/tr/tr

807 90

10

SILTSTONE: medium to dark grey, very dark grey to black, dark brown grey, arenaceous and argillaceous in part, trace carbonaceous specks and cream to dark lithics, firm to hard, sub blocky to subfissile.TUFF: as above.

- 810 80

1010

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, cream, green grey, medium grey, yellow white, microcrystalline, very siliceous, waxy in part, common white and dark specks, fractured fragments in part, very hard, sub fissile to fissile.

Gas peak 207 units, 100%C1

813 7020

10

SILTSTONE: as above.SANDSTONE: fine to coarse, predominantly fine, occasionally medium, rarely coarse, clear to translucent, off white, sub angular to sub rounded, moderately well sorted, argillaceous, weak to moderate siliceous cement, trace calcareous cement, trace very fine lithics, minor pyrite, argillaceous, predominantly moderately hard to friable aggregates, loose coarse grains, poor to locally fair visual porosity, no fluorescence.TUFF: as above.

816 201070


819 30

3040

SILTSTONE: medium to dark grey, very dark grey to black, dark brown grey, arenaceous and argillaceous in part, trace carbonaceous specks and cream to dark lithics, firm to hard, sub blocky to subfissile.SANDSTONE: as above.TUFF: off white, cream, green grey, medium grey, yellow white, microcrystalline, very siliceous, waxy in part, common white and dark specks, fractured fragments in part, very hard, sub fissile to fissile.

822 2040

40

SILTSTONE: as above.SANDSTONE: fine to very coarse, predominantly fine, occasionally medium, rarely very coarse, clear to translucent, off white, sub angular to sub rounded, moderately well sorted, argillaceous, weak to moderate siliceous cement, locally common silica grading to tuff, trace calcareous cement, trace very fine lithics, minor pyrite, argillaceous, predominantly moderately hard to friable aggregates, loose coarse grains, poor to locally fair visual porosity, no fluorescence.TUFF: as above.

Background gas60 - 90 units, 98/2/tr

825 50

20

30

SILTSTONE: predominantly medium to dark grey, light grey, trace dark brown grey, trace medium green, arenaceous in part, argillaceous, trace to common silica grading to TUFF in part, abundant microcarbonaceous specks, trace calcareous shell fragments, medium hard to predominantly hard, very hard in part, sub fissile to sub blocky .SANDSTONE: fine to coarse, predominantly fine, occasionally medium, rarely coarse, clear to translucent, off white, sub angular to sub rounded, moderately well sorted, argillaceous, weak to moderate siliceous cement, trace calcareous cement, trace very fine lithics, minor pyrite, argillaceous, predominantly moderately hard to friable aggregates, loose coarse grains with trace quartz overgrowths, poor to locally fair visual porosity, no fluorescence.TUFF: as above.

828 603010


831 504010


Background gas60 – 80 units, 98/2/tr/tr

- 834 30

6010

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, cream, green grey, medium grey, yellow white, microcrystalline, very siliceous, waxy in part, common white and dark specks, fractured fragments in part, very hard, sub fissile to fissile.

Background gas60 - 80 units, 98/2/tr/tr

837 108010

SILTSTONE: as above.SANDSTONE: as above, fossil fragments. TUFF: as above.

840 2070

10

SILTSTONE: as above.SANDSTONE: fine to very coarse, predominantly fine to medium, rarely coarse to very coarse, clear to translucent, off white, sub angular to sub rounded, poorly to moderately sorted, argillaceous, weak to moderate siliceous cement, trace calcareous cement, minor calcite and fossil fragments, trace very fine lithics, minor pyrite, argillaceous, predominantly moderately hard to friable aggregates, loose coarse grains with trace quartz overgrowths, poor to locally fair visual porosity, no fluorescence.TUFF: as above.

843 305020


846 108010

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, very light brown grey to brown grey, microcrystalline, very siliceous, waxy in part, common white and dark specks, fractured fragments in part, very hard.

849 2080

Tr

SILTSTONE: as above.SANDSTONE: fine to very coarse, predominantly fine to medium, rarely coarse to very coarse, clear to translucent, off white, sub angular to sub rounded, poorly to moderately sorted, argillaceous, weak to moderate siliceous cement, trace calcareous cement, minor calcite and fossil fragments, trace very fine lithics, minor pyrite, argillaceous, predominantly moderately hard to friable aggregates, loose coarse grains with trace quartz overgrowths, poor to locally fair visual porosity, no fluorescence.TUFF: as above.

852 40

4020

SILTSTONE: medium dark grey, light to medium brown grey, trace reddish brown, trace dark grey black, commonly argillaceous, very fine arenaceous in part, siliceous in part, common microcarbonaceous

specks and lithics, trace disseminated pyrite, hard to very hard, sub fissile to sub blocky. SANDSTONE: as above, calcite and fossil fragments..TUFF: as above.

Background gas60 - 100 units, 96/3/1/1/tr

855 9010Tr


858 40

4020

SILTSTONE: medium dark grey, light to medium brown grey, trace reddish brown, trace dark grey black, commonly argillaceous, very fine arenaceous in part, siliceous in part, common microcarbonaceous specks and lithics, trace disseminated pyrite, hard to very hard in part, very soft and dispersive in part, sub fissile to sub blocky.SANDSTONE: as above. TUFF: as above.


- 861 90

10

SANDSTONE: very fine to medium, predominantly fine, off white to clear to translucent, well sorted, sub angular to sub rounded, weak siliceous cement, weak calcareous cement, trace to abundant argillaceous matrix, common calcite and fossil fragments including spines, dominantly loose and unconsolidated, friable, poor to fair visual porosity, no fluorescence.TUFF: as above.

Gas peak in sand 180 units,100% C1

864 108010

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, very light brown grey to brown grey, microcrystalline, very siliceous, waxy in part, common white anddark specks, sub fissile to splintery, fractured fragments in part, very hard.

Gas peak in sand 232 units, 98/2/-

867 1080

10

SILTSTONE: as aboveSANDSTONE: clear to translucent in part, medium grey, brown grey, very fine to fine, occasional medium, moderately well sorted, subangular to subrounded, common strong calcareous cement, trace strong siliceous cement, common off white to light brown grey argillaceous matrix, dispersive in part, trace to common biotite flakes, common carbonaceous flecks and Interbedded laminae, common white, dark grey and green lithics, trace quartz overgrowths, firm to very hard aggregates, loose in part, nil to very poor visual porosity.TUFF: as above.

870 207010


873 702010

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, very light brown grey to brown grey, microcrystalline, very siliceous, waxy in part, common white and dark specks, sub fissile to splintery, fractured fragments in part, very hard.

876 70

2010

SILTSTONE: as above. medium dark grey, light to medium brown grey, trace reddish brown, trace dark grey black, commonly argillaceous grading to claystone in part, very finely arenaceous in part, siliceous in part, common microcarbonaceous specks and lithics, trace disseminated pyrite, hard to very hard in part, very soft and dispersive in part, sub fissile to sub blocky.SANDSTONE: as above. TUFF:

879 603010

SILTSTONE: as above, trace to common calcite veins, rare pyrite.SANDSTONE: as above. TUFF:

882 604010

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, very light brown grey to brown grey, microcrystalline, very siliceous, waxy in part, common white and dark specks, sub fissile to splintery, fractured fragments in part,very hard.

Background gas80 - 140 units, 96/2/1/1/tr

885 603010

SILTSTONE: as above. SANDSTONE: as above.TUFF: off white, very light brown grey to brown grey, microcrystalline, very siliceous, waxy in part, common white anddark specks, trace very thin calcite veins, fractured fragments in part, very hard.

Gas peak 160units, 100% C1

- 888 70

20

10

SILTSTONE: very dark grey to grey black, trace carbonaceous specks, trace to common very thin calcite veins, firm to hard, sub blocky to subfissile, trace fissile.SANDSTONE: clear to translucent in part, medium grey to medium dark grey, very fine to fine, dominantly fine, occasional medium, moderately well sorted, subangular to subrounded, common to abundant strong calcareous cement, trace siliceous cement, common off white argillaceous matrix, trace biotite flakes, trace to common carbonaceous specks and rare laminae, common white, dark grey and green lithics, rare pyrite, friable to moderately hard aggregates, common loose, very poor to poor visual porosity.TUFF: as above.

891 80

1010

SILTSTONE: medium dark grey, light to medium brown grey, trace reddish brown, trace dark grey black, commonly argillaceous grading to claystone in part, very finely arenaceous in part, siliceous in part, common microcarbonaceous specks and lithics, trace disseminated pyrite, hard to very hard in part, very soft and dispersive in part, sub fissile to sub blocky.SANDSTONE: as above.TUFF: off white, very light brown grey to brown grey, microcrystalline, very siliceous, waxy in part, common white and dark specks, sub fissile to splintery, fractured fragments in part, very hard.

Background gas130 units, 95/3/1/1/tr

894 801010


897 9010


900 100tr

SILTSTONE: medium dark grey, dark grey, greyish black, rarely grey brown, argillaceous, carbonaceous, trace micromicaceous, firm to hard, subblocky to subfissile.SANDSTONE: as above.

903 9010


Background gas60 units,91/5/3/Tr

906 2080

CLAYSTONE: as above.SANDSTONE: very fine, green grey, medium dark grey, well sorted, moderately strong calcareous cement, pale grey to dark grey argillaceous matrix, moderately hard to hard aggregates, tight to nil visual porosity, no fluorescence.

Background gas increase to 80to 125 units from 907m down, 90/7/2/1/tr

909 2080


912 3070


915 9010

SILTSTONE: as above SANDSTONE: as above.

Background gas150 units, 90/7/2/1

918 100 SILTSTONE: medium dark grey to grey black, argillaceous, common carbonaceous specks, arenaceous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm tohard, very hard in part, subblocky to subfissile.

Gas peak 190 units at 918m, 97/2/1/tr

921 100 SILTSTONE: as above.924 100 SILTSTONE: as above.927 100

TrSILTSTONE: as above.SANDSTONE: as above.

930 100 SILTSTONE: medium dark grey to brown grey, argillaceous, common carbonaceous specks and trace laminae, pale cream and black lithics, trace pyrite, firm to moderately, hard, subblocky to subfissile.

933 100 SILTSTONE: as above.936 100 SILTSTONE: as above.

- 939 100 SILTSTONE: medium dark grey to grey black, argillaceous, common

carbonaceous specks, arenaceous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm tohard, very hard in part, sub blocky to sub fissile.

942 100 SILTSTONE: as above.945 100 SILTSTONE: as above.948 100 SILTSTONE: as above.951 90

10SILTSTONE: as above.LIMESTONE: pale to dark brown, off white to clear, fossiliferous in part, microcrystalline to crystalline in part, predominantly hard, brittle, occasionally very hard.

Background gas80 - 130 units, 86/9/4/1

954 9010

SILTSTONE: as above.LIMESTONE: as above

957 100 SILTSTONE: medium dark grey to grey black, argillaceous, common carbonaceous specks, arenaceous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm tohard, very hard in part, subblocky to subfissile.

960 6040


Gas peak 200units, 93/5/2/tr

963 100 SILTSTONE:966 100 SILTSTONE: as above.969 90

10SILTSTONE: as above.SANDSTONE: very fine to very coarse, predominantly fine, clear to translucent, occasionally medium, well sorted, subangular to subrounded, loose to firm aggregates, tight inferred porosity, no fluorescence.

972 9010


975 7030


978 501040

SILTSTONE: as above. SANDSTONE: as above.LIMESTONE: pale to predominantly medium brown, off white in part, microcrystalline to minor crystalline, moderately hard to predominantly hard, very hard and brittle in part.

981 502030

SILTSTONE: as above. SANDSTONE: as above.LIMESTONE: as above.

984 207010

SILTSTONE: as above. SANDSTONE: as above.LIMESTONE: as above

987 1090

SILTSTONE: as above.SANDSTONE: very fine to very coarse, predominantly fine, clear to translucent, occasionally medium, well sorted, subangular to subrounded, loose to firm aggregates, tight to poor inferred porosity, no fluorescence.

Gas peak 329 units, 97/2/1/tr

990 1090

SILTSTONE: as above.SANDSTONE: as above

Gas peak 296units, 97/3/tr/tr

993 tr100


996 tr 100

SILTSTONE: as above. SANDSTONE:

Gas peak 200 units @ 996m,97/3/tr/tr

999 1090


Gas peak 251 units @ 998m,98/2/tr/tr

- 1002 20

80SILTSTONE: as above.SANDSTONE: very fine to granules, predominantly medium to coarse, grading to very fine arenaceous SILTSTONE in part, clear to translucent, occasionally medium, poorly sorted, subangular to subrounded, predominantly weak to moderately strong siliceous cement, very weak calcareous cement in part, abundant off white to medium grey dispersive argillaceous matrix, loose to firm aggregates, fair to good inferred porosity,no fluorescence.

1005 3070


1008 5050

SILTSTONE: as above with common white calcite veins.SANDSTONE: as above.

1011 7030


1014 8020


Background gas60 - 80 units, 90/7/2/Tr

1017 90

10tr

SILTSTONE: medium dark grey to dark grey black, light to medium grey in part, argillaceous, common carbonaceous specks, arenaceous grading to very fine sandstone in part, in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm to moderately hard, hard in part, occasionally soft and dispersive, sub blocky to sub fissile.SANDSTONE: as above.LIMESTONE: pale grey to cream, light brown to brown, sparry, crystalline to microcrystalline, fossiliferous, hard, angular to blocky.

1020 8020

SILTSTONE: as above.SANDSTONE: very fine to very coarse, predominantly fine to very fine, clear to translucent, medium to dark grey, moderately well sorted, sub angular to subrounded, weak to moderately strong siliceous cement, weak calcareous cement in part, trace pyrite, trace carbonaceous, common fossil fragments, loose to firm aggregates, tight to moderate inferred porosity, nofluorescence.

1023 100

tr

SILTSTONE: medium dark grey to grey black, argillaceous, common carbonaceous specks, arenaceous in part, calcareous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm to hard, very hard in part, subblocky to subfissile.SANDSTONE: as above.

1026 100tr


1029 100tr


1032 8020


1035 100

tr

SILTSTONE: medium dark grey to grey black, argillaceous, common carbonaceous specks, arenaceous in part, calcareous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm to hard, very hard in part, sub blocky to sub fissile.SANDSTONE: as above.

1038 100tr


1041 100tr


1044 100tr


1047 100tr



1050 9010


- 1053 80

20SILTSTONE: as above.SANDSTONE: as above, medium to very coarse in part.

1056 8020


Background gas40 units,83/13/4/Tr

1059 70

30

SILTSTONE: medium dark grey to grey black, argillaceous, common carbonaceous specks, arenaceous in part, calcareous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm to hard, very hard in part, sub blocky to sub fissile.SANDSTONE: very fine to very coarse, predominantly fine to very fine, clear to translucent, medium to dark grey, moderately well sorted, sub angular to subrounded, weak to moderately strong siliceous cement, weak calcareous cement in part, trace pyrite, trace carbonaceous, rare black green lithics, common fossil fragments, loose to firm aggregates, tight inferred porosity in aggregates, good inferred visual porosity when loose, nofluorescence.

1062 6040


1065 2080


1068 2080

SILTSTONE: as above, grades to Claystone in part.SANDSTONE: as above.

Gas peak 243units, 77/15/5/3

1071 2080


1074 4060


1077 1090


Background gas80-120 units, 92/7/1/Tr

1080 1090

CLAYSTONE: as above.SILTSTONE: as above, minor fluorescenceFluorescence 1080 – 1086m, 30% dim light green to moderately bright white, pin point to patchy, no cut, very slow blooming milky crush cut, thin ring residue.

1083 Tr 100

tr

SILTSTONE: as above.SANDSTONE: as above, fluorescence as above.TUFF: green grey, pale grey, off white, waxy, trace lithics, hard, subblocky to subfissile.

512 units at 1084m, 89/8/2/1/tr

1086 Tr 100

tr

SILTSTONE: as above.SANDSTONE: as above, fluorescence as above. TUFF: as above

1089 1090


1092 20

80

SILTSTONE: medium dark grey to grey black, argillaceous, common carbonaceous specks, arenaceous in part, calcareous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm to hard, very hard in part, sub blocky to sub fissile.SANDSTONE: very fine to very coarse, predominantly fine to very fine, clear to translucent, medium to dark grey, moderately well sorted, sub angular to subrounded, weak to moderately strong siliceous cement, weak calcareous cement in part, trace pyrite, trace carbonaceous, rare black green lithics, common fossil fragments, loose to firm aggregates, tight inferred porosity in aggregates, good inferred visual porosity when loose, no fluorescence,

Background gas50 - 60 units, 91/6/2/1/Tr

1095 1090


1098 3070


- 1101 30

70SILTSTONE: as above.SANDSTONE: as above.

1104 2080



1107 5050

SILTSTONE: as above.SANDSTONE: as above. very fine to very coarse, predominantly fine to very fine, clear to translucent, medium to dark grey, moderately well sorted, sub angular to subrounded, weak to moderately strong siliceous cement, weak calcareous cement in part, trace pyrite, trace carbonaceous, rare black green lithics, common fossil fragments, loose to firm aggregates, tight inferred porosity in aggregates, good inferred visual porosity when loose,no fluorescence.

1110 7030


1113 80

20

SILTSTONE: medium dark grey to grey black, argillaceous, common carbonaceous specks, arenaceous in part, calcareous in part, trace micromicaceous, trace fossil fragments, trace pyrite, firm to hard, very hard in part, sub blocky to sub fissile.SANDSTONE: as above.

1116 Tr 100

SILTSTONE: as above.SANDSTONE: very fine to very coarse, predominantly fine to very fine, clear to translucent, medium to dark grey, moderately well sorted, sub angular to subrounded, weak to moderately strong siliceous cement, weak calcareous cement in part, trace pyrite, trace carbonaceous, rare black green lithics, loose to firm aggregates, tight inferred porosity in aggregates, good inferredvisual porosity when loose, no fluorescence.

1119 90

10

SILTSTONE: medium dark grey to dark grey, brown grey, very argillaceous, trace to common carbonaceous specks, rare trace white to translucent light brown calcite veins, trace pyrite, firm to hard, sub blocky to subfissile.SANDSTONE: as above.


1122 100Tr


1125 100tr


1128 9010


1131 8020



1134 7030


1137 6040

SILTSTONE: as above. SANDSTONE: as above.Fluorescence: 10-15% pin point dim yellow fluorescence, 1134- 1143 metres, very slow blooming cut, slow crush cut, thin film residue

170 unit gas peak at 1136m, 86/10/3/1

1140 5050


1143 4060


- 1146 20

80

SILTSTONE: medium dark grey to dark grey, brown grey, very argillaceous, trace to common carbonaceous specks, trace pyrite, firm to hard, sub blocky to subfissile.SANDSTONE: clear to translucent, off white, light to medium dark grey to medium grey, pale grey, very fine to very coarse, predominantly fine to very fine, moderately sorted, subangular to subrounded, aggregates with moderately strong calcareous cement, common off white to grey argillaceous matrix, dispersive in part, trace biotite flakes, common fine to medium cream, dark grey and green lithics, friable to moderately hard aggregates, trace to common loose, very poor to poor visualporosity, no fluorescence.

Sand peak at 1145 m180 units, 80/15/4/Tr

1149 6030tr

SILTSTONE: as above. SANDSTONE: as above.COAL: black, shiny, brittle, sub blocky to hackly uneven fracture, argillaceous in part, rare pyrite coating, grades to carbonaceous siltstone.

1152 6020

20

SILTSTONE: as above.SANDSTONE: as above, abundant off white argillaceous matrix, dispersive in part.COAL:

750 unit gas peak at 1151m, 77/18/4/1

1155 90

10

SILTSTONE: medium dark grey to dark grey, brown grey, very argillaceous, trace to common carbonaceous specks, trace pyrite, firm to hard, sub blocky to subfissile.SANDSTONE: as above.

426 unit gas peak at 1154m, 83/14/3/1

1158 801010

SILTSTONE: as above. SANDSTONE: as above.COAL: as above

499 unit gas peak at 1158m,83/14/3/tr

1161 100tr tr

SILTSTONE: as above. SANDSTONE: as above.COAL: as above

1164 100tr


1167 7030

SILTSTONE: as above.SANDSTONE: as above, occasional coarse grains, sub-rounded to angular and fractured, no fluorescence.


1170 6040

SILTSTONE: as above.SANDSTONE: pale grey to off white, medium dark grey in part, dominantly very fine to fine, common medium to coarse, occasionally very coarse, sub angular to sub rounded, weak to moderate siliceous cement, common pyrite, carbonaceous in part, friable to moderately hard, poor to fair inferred porosity, nofluorescence.

1173 7030



1176 100tr


1179 100 SILTSTONE: as above.1182 100

trSILTSTONE: as above.SANDSTONE: as above.

1185 100tr



1188 8020


- 1191 90

10

SILTSTONE: medium dark grey to dark grey, brown grey, very argillaceous, trace to common carbonaceous specks, common pyrite, firm to hard, sub blocky to subfissile.SANDSTONE: pale grey to off white, medium dark grey in part, dominantly very fine to fine, common medium to coarse, occasionally very coarse, sub angular to sub rounded, weak to moderate siliceous cement, common pyrite, carbonaceous inpart, friable to moderately hard, poor to fair inferred porosity, no fluorescence.

1194 9010


1197 100 SILTSTONE: as above.1200 90

10SILTSTONE: as above. SANDSTONE: as above.


1203 8020

SILTSTONE: as above.SANDSTONE: pale grey to off white, medium dark grey in part, dominantly very fine to fine, common medium to coarse, occasionally very coarse, sub angular to sub rounded, weak to moderate siliceous cement, common pyrite, carbonaceous in part, friable to moderately hard, poor to fair inferred porosity, nofluorescence.

1206 30

70

SILTSTONE: medium dark grey to dark grey, brown grey, very argillaceous, trace to common carbonaceous specks, trace pyrite, firm to hard, sub blocky to sub fissile.SANDSTONE: as above

1209 2080

SILTSTONE: as above.SANDSTONE: pale grey to off white, medium dark grey to pale green grey in part, dominantly very fine to fine, common medium to coarse, occasionally very coarse, sub angular to sub rounded, weak to moderate siliceous cement, common pyrite, friable tomoderately hard, hard in part, commonly loose, poor to fair inferred porosity, no fluorescence.


1212 tr 100

SILTSTONE: as above, light blue grey, green grey, argillaceous.SANDSTONE: as above but marked colour change to light blue grey, green grey, no fluorescence.

1215 1090


Background gas 45units,93/6/1/tr

1218 1090


Background gas 40units,93/6/1/tr

1221 30

70

SILTSTONE: light to medium green, medium greenish grey, light blue grey, argillaceous grading to green grey claystone, arenaceous in part grading to very fine sandstone, abundant micromicaceous, pyrite, finely laminated in part, moderately hard to hard, soft and dispersive in part, sub blocky to angular and splintery in part.SANDSTONE: pale to medium green, light green grey, very fine to fine, occasionally medium to very coarse, moderately well sorted, weak to moderately strong siliceous cement, common off white to pale green argillaceous to silty matrix, rare to commonpyrite and lithics, poor to fair porosity, no fluorescence.


1224 8020

SILTSTONE: as above,SANDSTONE: as above.

Background gas20 units, 94/5/1

1227 8020


1230 7030


1233 3070


Background gas18 units,89/7/3/1

- 1236 40

60

SILTSTONE: light to medium green, medium greenish grey, light blue grey, argillaceous grading to green grey claystone, arenaceous in part grading to very fine sandstone, abundant micromicaceous, pyrite, finely laminated in part, moderately hard to hard, soft and dispersive in part, sub blocky to angular and splintery in part.SANDSTONE: pale to medium green, light green grey, very fine to fine, occasionally medium to very coarse, moderately well sorted, weak to moderately strong siliceous cement, common off white to pale green argillaceous to silty matrix, rare to common pyrite and lithics, poor to fair porosity, no fluorescence.

Background gas 20units,89/7/3/1

1239 6040


1242 20

80

SILTSTONE: dark grey to grey black, dark brown grey in part, very argillaceous, trace very fine quartz grading to Sandstone in part, trace carbonaceous specks, trace very fine off white lithics, trace pyrite, rare trace Limestone fragments, micromicaceous in part, firm to moderately hard, hard in part, sub blocky to occasional subfissile.SANDSTONE: clear to translucent, off white, medium dark grey to medium brown grey, very fine to very coarse, predominantly very fine, poorly sorted, subangular to subrounded, angular and rounded in part, common moderately strong calcareous cement, common off white to brown argillaceous matrix, dispersive in part, trace quartz overgrowths, trace biotite flakes, trace carbonaceous specks and laminae, common very fine cream, dark grey and green lithics, friable to moderately hard aggregates, common loose coarse to very coarse grains, verypoor to poor visual porosity.

1245 9010


1248 9010

SILTSTONE: as above.SANDSTONE: as above, very fine to medium grains sub rounded to sub angular, coarse to very coarse translucent to milky, commonly fractured

1251 1090

SILTSTONE: as above.SANDSTONE: as above, large grains milky to opaque, angular to subangular.


1254 1090

SILTSTONE: as above, very argillaceous in part, fragments splintery.SANDSTONE: as above.

1257 8020

SILTSTONE: as above.SANDSTONE: as above, fractured coarse to very coarse grains milky to translucent, tabular to saccharoidal in part.


1260 6040

SILTSTONE: as above, finely laminated in part, some laminations infilled veins.SANDSTONE: as above.

1263 8020


1266 7030


1269 3070

SILTSTONE: as above, grading to metasiltstone.SANDSTONE: as above, grading to metasandstone.

1272 5050


Background gas100 units, 94/5/1/

1275 6040

METASILTSTONE: medium dark grey, dark grey, greyish black, trace greenish grey, predominantly medium to light bluish grey, siliceous, argillaceous in part, abundant micromicaceous, common phyllitic texture, micro-carbonaceous and lithic specks, predominantly very hard, fissile to sub-fissile.SANDSTONE: as above.

- 1278 70

30METASILTSTONE: as above.METASANDSTONE: as above.

1281 7030

METASILTSTONE: as above.METASANDSTONE: as above.


1284 7030


1287 80

20

METASILTSTONE: medium blue grey to dark green grey, occasional dark grey, very argillaceous grading to blue grey claystone, very finely arenaceous grading to very fine sandstone in part, finely laminated in part, micro-micaceous to sericitic with phyllitic sheen and parting, occasional pyrite, moderately firm to hard, fissile to sub fissile, commonly splintery.METASANDSTONE: light green grey, light grey to milky/translucent to clear, light blue grey in part, very fine to rarely very coarse, dominantly fine to very fine loose, or fine to very fine aggregates grading to arenaceous siltstone, occasional medium to coarse grains with angular fractures, angular and fractured milky quartz, tabular to rarely saccharoidal in part, finer grains sub-angular to sub-rounded, poorly sorted, trace to nil calcareous cement, commonly strong siliceous cement, firm to hard with nil visual porosity in aggregates, moderate to fairvisual porosity inferred from loose grains, no fluorescence.

1290 7030


1293 6040


1296 8020


1299 7030


1302 8020


1305 100 METASILTSTONE: as above.METASANDSTONE: as above.


1308 100 METASILTSTONE: as above.1311 100 METASILTSTONE: as above.1314 90


1317 6040

METASILTSTONE: as above. METASANDSTONE: as above.

Background gas100 units, 86/10/3/1

1320 70

30

METASILTSTONE: medium blue grey to dark green grey, occasional dark grey, very argillaceous grading to blue grey claystone, very finely arenaceous grading to very fine sandstone in part, finely laminated in part, micro-micaceous to sericitic with phyllitic sheen and parting, occasional pyrite, moderately firm to hard, fissile to sub fissile, commonly splintery.METASANDSTONE: light green grey, light grey to milky/translucent to clear, light blue grey in part, very fine to rarely very coarse, dominantly fine to very fine loose, or fine to very fine aggregates grading to arenaceous siltstone, occasional medium to coarse grains with angular fractures, angular and fractured milky quartz, tabular to rarely saccharoidal in part, finer grains sub-angular to sub-rounded, poorly sorted, trace to nil calcareous cement, commonly strong siliceous cement, firm to hard with nil visual porosity in aggregates, moderate to fairvisual porosity inferred from loose grains, no fluorescence.

1323 5050


1326 4070

METASILTSTONE: as above. METASANDSTONE: as above.


- 1329 50


1332 8020


1335 9010


1338 9010


1341 9010


1344 1090

METASILTSTONE: as above.METASANDSTONE: as above,light green grey, light grey to milky/ translucent to clear, light blue grey in part, very fine to rarely very coarse, dominantly fine to very fine loose, or fine to very fine aggregates grading to arenaceous siltstone, occasional medium to coarse grains with angular fractures, angular and fractured milky quartz, tabular to rarely saccharoidal in part, finer grains sub-angular to sub-rounded, poorly sorted, trace to nil calcareous cement, commonly strong siliceous cement, firm to hard with nil visual porosity in aggregates, moderate to fairvisual porosity inferred from loose grains, no fluorescence.

Background gas 30 units, 92/6/2

1347 2080


1350 30

40

30

METASILTSTONE: medium blue grey to dark green grey, occasional dark grey, argillaceous in part, very finely arenaceous grading to very fine siliceous METASANDSTONE, laminated in part, micro-micaceous to sericitic with phyllitic sheen and parting, occasional pyrite, firm to hard, fissile to sub fissile, commonly moderately to extremely splintered.METASANDSTONE: light green grey, light grey to clear, very fine to rarely very coarse, fine to very fine aggregates grading to arenaceous metasiltstone, moderately well sorted, occasional medium to coarse grains with angular fractures, finer grains commonly show fractured surfaces when loose, sub-angular to angular, trace to common calcareous cement, METASANDSTONE grades to QUARTZITE in part with strong to very strong siliceous cement equal to or exceeding grain strength, occasional pyrite, trace black lithics, trace carbonaceous matter and crystalline calcite, trace siliceous vein infill, firm to very hard with nil visual porosity in aggregates, poor to nil inferred porosity, no fluorescence.QUARTZITE: white to green grey to medium dark brown, very fine to

medium clear to milky sub-rounded to rounded quartz grains in very hard siliceous matrix, trace carbonaceous laminae, nil visual and inferred porosity.

1353 305020

METASILTSTONE: as above. METASANDSTONE: as above.QUARTZITE: as above.


1356 207010

METASILTSTONE: as above. METASANDSTONE: as above.QUARTZITE: as above.

1359 3070


1362 8020


- 1365 70

30

METASILTSTONE: medium blue grey to dark green grey, occasional dark grey, argillaceous in part, very finely arenaceous grading to very fine siliceous METASANDSTONE, laminated in part, micro-micaceous to sericitic with phyllitic sheen and parting, occasional pyrite, firm to hard, fissile to sub fissile, commonly moderately to extremely splintered.METASANDSTONE: light green grey, light grey to clear, very fine to rarely very coarse, fine to very fine aggregates grading to arenaceous metasiltstone, moderately well sorted, occasional medium to coarse grains with angular fractures, finer grains commonly show fractured surfaces when loose, sub-angular to angular, trace to common calcareous cement, METASANDSTONE grades to QUARTZITE in part with strong to very strong siliceous cement equal to or exceeding grain strength, occasional pyrite, trace black lithics, trace carbonaceous matter and crystalline calcite, trace siliceous vein infill, firm to very hard with nil visual porosity in aggregates, poorto nil inferred porosity, no fluorescence.

1368 7030


1371 7030



1374 6040


1377 6040


1380 5050


1383 3070


1386 4060



1389 2080


1392 4060


1395 50

50

METASILTSTONE: as above, medium blue grey to dark green grey, occasional dark grey, argillaceous in part, very finely arenaceous grading to very fine siliceous METASANDSTONE, laminated in part, micro-micaceous to sericitic with phyllitic sheen and parting, occasional pyrite, firm to hard, fissile to sub fissile, commonly moderately to extremely splintered.METASANDSTONE: as above, light green grey, light grey to clear, very fine to rarely very coarse, fine to very fine aggregates grading to arenaceous metasiltstone, moderately well sorted, occasional medium to coarse grains with angular fractures, finer grains commonly show fractured surfaces when loose, subangular to angular, trace to common calcareous cement, METASANDSTONE grades to QUARTZITE in part with strong to very strong siliceous cement equal to or exceeding grain strength, occasional pyrite, trace black lithics, trace carbonaceous matter and crystalline calcite, trace siliceous vein infill, firm to very hard with nil visual porosity in aggregates, poorto nil inferred porosity, no fluorescence.

1398 8020


1401 9010


1404 3070


1407 5050


- 1410 90



1413 9010


1416 9010


1419 8020


1422 8020


1425 8020



1428 4060


1431 3070


1434 2080


1437 100 METASANDSTONE: as above, light green grey, light grey to clear, very fine to rarely very coarse, fine to very fine aggregates grading to arenaceous metasiltstone, moderately well sorted, occasional medium to coarse grains with angular fractures, finer grains commonly show fractured surfaces when loose, subangular to angular, trace to common calcareous cement, METASANDSTONE grades to QUARTZITE in part with strong to very strong siliceous cement equal to or exceeding grain strength, occasional pyrite, trace black lithics, trace carbonaceous matter and crystalline calcite, trace siliceous vein infill, firm to very hard with nil visual porosity in aggregates, poorto nil inferred porosity, no fluorescence.

1440 1090


1443 3070


1446 5050


1449 8020



1452 303040

METASILTSTONE: as above. METASANDSTONE: as above.CLAYSTONE: red brown claystone, highly dispersive, no solid cuttings identified but present as clay coating onmetasandstone, occasional penetration and red brown staining within cuttings.

1455 5050tr

METASILTSTONE: as above. METASANDSTONE: as above.CLAYSTONE: red brown claystone, highly dispersive, no solid cuttings identified but present as clay coating on metasandstone, occasional penetration and red brown staining within cuttings.

1458 7030



1461 8020


1464 8020


1467 3070



1470 4060


1473 3070


- 1476 20

80

METASILTSTONE: as above, medium grey to dark grey, rarely green grey, argillaceous in part, composite grains silicified and grade to very fine siliceous METASANDSTONE, micromicaceous, occasional pyrite, calcareous in part, firm to very hard, fissile to sub fissile with irregular fracture.METASANDSTONE: as above.

1479 1090


1482 2080

METASILTSTONE: as above.METASANDSTONE: METASANDSTONE: medium grey, light grey to clear, very rarely green grey, very fine to rarely very coarse, individual grains silicified and indistinct grading to arenaceous metasiltstone, rare medium to coarse grains with angular fractures, loose grains commonly composite and recrystallised with frosted and fractured surfaces, sub-angular to angular, occasional pyrite, trace black lithics, trace carbonaceous matter and laminae, trace to common calcareous cement, trace crystalline calcite, rare aggregates of very argillaceous metasandstone, nil visual porosity, poor to nil inferred porosity, no fluorescence. METASANDSTONE gradesto QUARTZITE in part.

1485 4060



1488 7030


1491 6040


1494 70

30


1497 4060


1500 6040

METASILTSTONE: as above.METASANDSTONE: as above, light green grey, red brown, light grey to clear, grains and aggregates commonly coated with red claystone, penetration of fractured aggregates by red brown clay and ferric iron staining, occasional medium to coarse white quartzite.

1503 2080


1506 60

40


Background gas 8 units, 96/3/1

1509 6040


1512 100tr


Background gas6 units, 98/2/-

1515 8020


1518 3070


1521 8020


1524 8020


1527 9010


-

1530 9010


1533 100tr



1536 100tr


1539 100tr


1542 9010


1545 100tr


1548 100tr


1551 100tr


1554 100tr


1557 100tr



1560 9010


1563 9010


1566 7030


1569 7030


1572 6040


1575 6040



1578 5050


1581 7030


1584 6040


1587 5050


1590 80 METASILTSTONE: as above.METASANDSTONE: as above.

1593 3070


1596 2080


1599 8020


1602 8020


1605 6040


1608 4060


1611 3070


1614 1090


1615 1090


T.D. reached at 08:30 hours 23rd August 2003

-

DRILLING FLUID SUMMARY

for : TIPPERARY OIL & GAS (Aust.)

well : FAIRVIEW # 77

PL - 100 BOWEN BASIN

QLD.

-

CONTENTS

SUMMARY OF OPERATIONS

OBSERVATIONS / RECOMMENDATIONS

MATERIALS : CONSUMPTION TABLESRECONCILIATION INVENTORY

CHARTS : DEPTH vs DAYS DEPTH vs COSTDEPTH vs CONCENTRATIONS DEPTH vs TEMPERATURECOMPARISON OF PRIMARY PRODUCTS MUD WEIGHT / KCL CONTENT

BIT RECORD

MORNING REPORTS

- SUMMARY OF OPERATIONS

Fairview # 77 was drilled with the primary objective of producing CBM from the Bandanna Coals and with the secondary objective of locating potential subsurface CBM water disposal zones. As the total dissolved salts, associated with the co-produced CBM water, are considered too high for surface discharge into natural drainage then the fractured metamorphic Timbury Hills formation seemed the most promising for this secondary objective.ODE rig 20 rigged up on the lease, the well was spudded at 00:01 hours on the 31st July 2003 and was drilled to a total depth of 1615 metres. TD was reached at 0730 hours on the 23rd August 2003. The rig was released on the 27th August 2003.

The rig was moved onto the location and rigged up over Fairview # 77. The water supplied for this well came from a local creek bed and a field analysis was conducted with the following results:

pH : 7.0pf / Mf : - / 0.1

Chlorides : < 100 mg/lHardness : < 40 mg/ l

Rw : max. deflect -mtrs

HOLE SIZE : 12 ¼ "MUD TYPE : Gel - Native Clay Spud Mud INTERVAL : Surface – 210 metres CASING : 9 5/8 " @ 207 metres

260 barrels of 15 ppb gel spud mud was mixed into the front system of tanks and allowed to hydrate. With only the rat-hole drilled, the well was spudded and 12 ¼” hole made to 210 metres. Drilling of the mouse hole was left until later as the cellar construction proved too large and the small tolerance between the mouse hole and cellar would be ‘tempting fate’ (see Dawson Bend # 1) to incur losses via communication between the two.Drilling of the Precipice sands proved not to be a challenge for the surface equipment – completely the opposite to the case on the last well. The sand coming out did not blind the shakers and the surface equipment handled the volume of solids remarkably well. Although, along with the dumping and cleaning of the traps, adding water to replace the volumes lost over the shakers as well as rebuilding volume with more premixes of gel and water, together with the desilter running continuously and discharging copious quantities of sand that required washing from the discharge tray – it still proved to be a busy time.Exiting the sands and drilling into the Rewan formation slowed most of this activity. Now drilling siltstones and clays, the shakers were left with 84’s and 1 x 50 mesh on each and a high level of control was established over the mud system.At 210 metres, t.d. for this interval, high vis. sweeps were not used at all. The trip was incident free and, while circulating the second time, 4 x 40 kg sacks of cottonseed hulls were mixed direct into the active system. This was to act as a support mechanism for the cement across the Precipice sands once the casing had been run. Then the pipe was pulled out of the hole in order to run the 9 5/8” casing.

-

With the casing run to bottom without incident and the shoe set at 207 metres, this pipe was circulated clean and cement was pumped with returns to surface. Having waited on the cement to cure, the landing joint and the conductor were laid out and the b.o.p. stack and surface equipment were nippled up.

HOLE SIZE : 8 ½ "MUD TYPE : KCl - PHPA - PolymerINTERVAL : 210 metres – 1615 metres (total depth) CASING : 7” @ 1219 metres.

While nippling up the b.o.p. stack and related surface equipment, the tanks used in the earlier 12 ¼” interval were all dumped and cleaned. Some 600 bbls of a 4.4% KCL carrier fluid with added PHPA and Pac-R was then mixed into the tanks. The PHPA concentration was begun at a low 0.5 ppb rather than at 0.75 – 1.0 ppb, to ensure the fluid did not run straight off the shakers at start-up. Water was kept isolated in the pill tank and was used for the drilling out of cement, casing shoe and shoe track. Screens on the shakers were changed to where both were carrying 3 x 110 mesh. Solids entrainment would then dictate future changes in screen mesh sizes.After extensive pressure testing of the b.o.p. stack and related surface equipment, bit # 2, an 8½” Hughes mill tooth XLX - 1 was made up and dressed with 1 x 12 and 2 x 14 jets to be run in on 6 ¼” collars and 4 ½” heavy weight drill pipe. The top of the cement was tagged at 191 metres and was drilled out to 215 metres, using the water from the pill tank. From this depth, the cement contaminated water was displaced by the newly mixed KCL / PHPA fluid and the water was dumped to the sump. After circulating the hole clean with the new mud, a formation integrity test was conducted to 190 psi or to an equivalent mud weight of 14.0 ppg. With the 8.6 ppg, 4.4% KCL / PHPA fluid now circulating throughout the active system, drilling of the 8 ½” interval resumed. As drilling commenced on this 8 ½” interval section, those initial low concentrations of PHPA (and of Pac-Reg) were steadily increased by means of both direct addition and via premixes to around 1.0 ppb. Concentrations of PHPA were maintained between this and 1.5 ppb for the remainder of this well. KCL concentrations were also raised to around 6% thus making this fluid exceptionally inhibitive to ensure minimum reactivity from the Rewan silts and clays. Xanthan gum was also added to the mix early in the piece to help in raising the yield point which would result in better hole cleaning than just relying on the high flow rates up the annulus.Regular totco single shot surveys were conducted to monitor the general hole deviation from vertical so as to control in the early stages, any tendencies toward excessive movements away.Such tendencies were almost continuously present throughout the entire hole and resulted in the hole being constantly drilled with much lighter weights at the bit and consequent slower rates of penetration than would normally have been the case. All probably due to the continuous dipping away of the formations penetrated.At 537 m., a sandstone lens within the Rewan took some 40 bbls of mud in just a few minutes. Although this major loss was over in just a short time, it continued on an intermittent basis while drilling the next 100 metres or so. Of course, no l.c.m. was used as we were just about to penetrate the primary target – the Bandanna Coals.While drilling the lower Rewan, finer mesh shaker screens were fitted – 3 x 175’s and 3 x 210’s. The 175’s were used before , considered 2nd hand and were not charged out, whereas, the 210’s were new. The screens helped considerably with the eventual ‘plateau-ing out’ of the mud weight to around 9.1 ppg. With slow drilling rates and fine solids entrainment, the desilter, although working exceptionally well, is not able to treat 100% of the return flow 100% of the time, and so the fine screens were considered a necessary change.

-

Drilled into the Bandanna Coals at 570 metres and flow checked each coal break. Once through the coal seams, drilling of 8 ½” hole continued on.While drilling through the 700 metre mark, a request was made by the Tipperary representative to raise the mud weight. The reason for this was to ‘help reduce the torque’. This was done with a resultant mud weight of 9.2 ppg but with no real positive results – we still experienced torque through the softer clays. Nevertheless, drilling continued. Also continuing were the intermittent losses experienced on a daily basis. Regardless, no l.c.m. was added as the geological picks were difficult enough without introducing the considerable amounts of masking that inevitably occurs whenever l.c.m. is added to the mud system plus, the amounts lost were not of a sudden nor massive nature that required the addition of l.c.m. At 895 metres, lost pump pressure and lost 18,000 lb string weight. The collars had twisted off and had to be fished out of the hole. Having made up and run an overshot with grapple, the fish was successfully caught, pulled out and laid down on the first run. Considering that the trip out with the fish was essentially a first time wiper trip for the bit and for the hole to this point (895 m.), there was no sign of the tight and sticky hole that is often the case for first time trips in KCL / PHPA drilled holes – which was fortunate and made the fishing that much easier. All of the b.h.a. was then broken out and laid down. A recently inspected set of collars and heavyweight drill pipe were then made up and run in, together with the new bit, # 3.After the fishing trip, drilling of 8 ½” hole resumed and again torque became a problem when drilling through the softer, more argillaceous sediments. (see comments in Observations section). And again, the request was made to raise the mud weight. This was duly done – again by the addition of KCl and now the weight was at 9.4 ppg and the concentration levels of KCL were around 6.7%. Plus, we were still losing whole mud on a constant daily basis but still not enough to consider the addition of l.c.m. as necessary. What was considered necessary however, was at this point, to lower the pump rates. This was done around 1100 metres and, as an immediate result, the incidence of torque through the softer clay-like sections stopped altogether and the total lost per day of whole mud to the hole reduced.During this time, the mud was maintained by the processes of dumping and dilution by transfer of premixed fluids. All tank cleaning, mud building and overall ‘water’ use was with recirculated sump water. Little or no fresh water was used throughout the majority of the time of drilling the 8 ½” interval until later, when the mud weight was requested to be lowered and fresh drillwater was partially employed to help achieve that. The system generally remained quite stable throughout.Tripped for a new bit, # 4, at 1267 metres. When this bit was run in the hole, the request was then made by the Tipperary representative to lower the mud weight. And, of course, this was duly accomplished ...but only after days of careful dumping and dilution, so as not to traumatise the hole ... and this process was assisted by the introduction of finer mesh screens on the shakers. Shortly after the next bit change from 1330 metres, the mud weight finally reached 9.3 ppg - 9.2 ppg where it was maintained for the rest of the drilling of the 8 ½” interval.Slow drilling - and, at 1375 metres, the bit was tripped and changed out for a new one - # 6. This remained in the hole, also drilling slowly and steadily until 1488 metres, whereupon it too, was pulled and exchanged for another. At 1512 metres, a 5 stand wiper trip was made out of the hole and the blocks were hung off. The brake arm linkages were then adjusted. Then, with the blocks released, the pipe was run back in to bottom. A slug was mixed and the pipe was pulled out to the shoe. The blocks were again hung off and the brake bands were replaced on the drawworks. Once completed, the pipe was run back in to bottom and drilling resumed from 1512 metres.At 1527 metres, high torque occurred as the bit broke through into a fissure or fracture. what followed was a sudden loss of some 90 bbls of whole mud from the system. A 35 bbl pill of 25 ppb cotton seed hulls was mixed and pumped. The losses stopped. And, after raising the

-

pump rates to 2 x 80 spm (380 gpm) – which was slower than earlier rates – and, noting no further losses, drilling cautiously resumed.Lost pump pressure at 1615 metres. Notably we were losing it while rotating and consequently torquing the pipe and then, we were regaining it when the string was not turning but had weight set down on it. (Correctly) assuming the pipe to be cracked, the pipe was pulled wet – which is always the procedure when looking for washouts and the like. A seriously cracked collar was found and laid out. It was then decided that this depth, 1615 metres was to be Total Depth for the hole. (it was drilled by 0730 hrs on the 23rd August 2003).

POST T.D. OPERATIONS:

Once the pipe was pulled and racked back in the derrick, Schlumberger Wireline rigged up and conducted a suite of electric wireline logs. A second run was made with the FMI tool across the Timbury Hills interval. Upon completion of logging, the wireline unit was rigged down and released.The drillstring was run back in to bottom, the hole was circulated clean and then the pipe was pulled out. The bit and the b.h.a. were laid out and the drill pipe was run back in open-ended. With Halliburton on the lease, the cementing unit was rigged up and a cement plug was pumped as per programme. Pulled pipe out of the plug and waited on the plug to cure. Ran in and tagged the plug and then pulled all of the pipe out of the hole, laying down sideways. Rigged up and ran 7” casing to 1219 metres. Circulated the casing, and treated the mud that was to be left behind in the casing annulus with Biocide. Mixed and pumped a KCL / SAPP preflush prior to the casing being cemented. The casing was cemented in two stages and each stage was displaced by a 2% (or, 7 ppb) KCL brine. The preflush and the brine were also treated with Biocide.The mud engineer was released on the 27th August 2003.

-

OBSERVATIONS

Fairview # 77 was drilled to 1615 metres for a total cost of $ 46,826.85

HOLE SIZE INTERVAL METRAGE COST COST / M12 ¼ ” 0 – 210 m. 210 $ 1,394.75 $ 6.64

8 ½ ” 210 - 1615 m. 1405 $ 43,342.70 $ 30.85

TOTAL DRILLING COST $ 44,737.45 $ 27.70

POST TD COSTS (logging / completion / damage) $ 2,089.40TOTAL WELL COST $ 46,826.85

12 1/4" Surface Hole:

Drilling of this section of Fairview # 77 proved to be fairly standard as ‘top hole’ goes. The gel based spud mud performed as expected, the Precipice sands did not blind – as was the case on the last well – hence the use of finer screens to cope with such sand blinding was not necessary.9 5/8” casing was run incident free and the cement returned to surface as expected – with no top-up jobs required.

8 1/2" Production Hole:

Considering the costs of hauling water and the poor standards of our access roads, the aim was to use as little as was possible of fresh drilling water. So, apart from the initial make up volume, the balance of the 8 ½” interval’s fluid requirements was taken as recirculated water from the sump and little or no water was taken direct from the day tank or turkey’s nest. Overall mud costs were considerably more than originally estimated, slow drilling rates (to ensure minimal deviation) plus the need to raise the mud weight, then the need to lower it again will always add extra chemicals to the original estimates.The performance and cost of a drilling fluid is dependent on many variables, including time and the reactivity of the formations encountered, the quality of the make-up water and even the quality of the rig crews handling the fluid. Nonetheless, extend the time factor and it is inevitable that the costs of building and maintaining the mud will become much more expensive than planned. And, the time factor in this instance was extended considerably because of the need to drill with reduced weight to control the tendency for the bit to deviate down dip – away from vertical.

Flow Rates:

Critical velocities for any given flow rate are determined by the rheological profile. Usually, by increasing the yield point, the Vcrit. also increases to where laminar flow profiles are easily achieved at normal pump rates. By 1100 metres, even with yield points around 18,

-

laminar flow was unachievable with flow rates of 440 to 450 gal/min. Continuous turbulence around the collars resulted in scouring and stripping of the formations being penetrated thus accounting for the larger, somewhat rounded caving-like cuttings washings coming across the shakers. Generally, turbulent flow around the collars is acceptable either at shallower intervals or at faster penetration rates. The collars pass the affected formations, the flow regime around the drill pipe changes to laminar and the damage heals. But up to 1100 m. drill rates just weren’t fast enough for that to happen. After this point in the hole, the pump rates were dropped down to 2 x 85 spm or, 400 gpm. However, judging by the measured hole gauge, this was still not sufficiently low enough to prevent hole scouring – especially given the low rates of penetration.High torque noted and response to same:450 – 470 m. pump hi-vis sweep and raise weight to 9.1 ppg with KCL 720 – 730 m. raise weight to 9.25 ppg by adding KCL1060 – 1070 m. pump hi-vis sweep and raise weight to 9.45 ppg with KCLThe above list is noteworthy due to the fact that there was a response requested by the Tipperary representative. At other times, not so high levels of torque were drilled through slowly and thus were effectively passed by. In all of the above instances the cause was not that the hole was ‘coming in’ on us and we needed to weight up. Nor was the hole not cleaning and we needed to sweep the hole. Nor was it that we needed to increase the inhibitive nature of the mud even further than it already was to prevent reactive clays from swelling up and ‘grabbing’ the pipe. Rather, the problem lay with the pump rates.Higher jet velocities combined with heavier bit weights when drilling into softer, more argillaceous (clayier) areas resulted in the formation being partially washed ahead of the bit. The bit then buries itself into the now broken up formation and pushes into and through it – creating torque. This area of ‘washed, not drilled’ formation then has the stabilisers working through it and they tended to ‘round out’ the hole from it’s ragged, washed, not drilled shape, thus creating a second level of torque. This is the most likely of scenarios for these moments of high torque and is supported by the fact that after each occurrence, larger volumes of those bigger, caving-like pieces of the more argillaceous parts of the formations penetrated came across the shakers ... as mentioned earlier when speaking of scouring.And ... as the harder, less easily washed sandstones and siliceous siltstones are drilled, the bit does actually drill these and the cuttings from these sections of the formations penetrated are normal and, of course, there is no torque noted.So all in all, washing ahead of the bit in clay type formations is the most likely cause of the torque we experienced – not increased formation pressures requiring heavier mud nor more reactive clays requiring greater inhibition.The choices ?1. run flow rates of 400 gpm or less, and drill, not wash, these formations. But expect marginally slower rates of penetration, or,2. keep up the higher rates of flow of around 450 plus gpm to possibly get slightly better rates of penetration but be prepared for the torque in the softer areas and be prepared for the washing out / scouring effects if the penetration rates aren’t all that good regardless.of important note: Reducing the pump pressure and pump rate at the time when torque is a problem will be counter-productive. The damage (washing out) has probably already happened and the pump pressure now maintains a ballooning effect to allow the washed chunks past the bit. To reduce the pump at this very point in time would most likely exacerbate the problem.Either / or, whichever flow rate path chosen, there will be drawbacks. However, throwing chemicals at the mud is not the answer.

-

Hole Gauge:

The 8 ½” interval was measured by wireline caliper. The result was that the hole was shown to be overgauge for most of the way from top to measurable bottom. There were sections that were marginally overgauge but for the most part the hole was considerably overgauge.And, based on the caliper logs from Schlumberger and the volumes derived therein, the hole is 157 bbls in excess which is 48 % over that calculated for an 8 ½” hole and, 48 %translates into an average hole size of (8.5 2 x 1.484) = 10.4 inches. Conclusions ? see‘flow rates’ above.

Fairview # 77Hole Gauge by Formation Interpreted from Caliper Log Data.

Drilled Depth Logging Depth Bit SizeCSG Size CSG IDCSG ShoeOH Logged

1615 m Calc OH Vol Actual OH Vol Volume Excess OH Excess % Average Hole Dia. CSG Volume Total Volume

324 bbls1615 m 481 bbl8.50 ins. 157 bbl

9 5/8" 48.4%8.921 ins. 10.4 ins.207 m 53 bbls1408 m 534 bbls

FORMATIONFROM

Metres

TO

Metres

INTERVAL

Metres

B-HOLE VOL.

M3

MAX OH DIAMinches

AVG. DIAM.

inches

Rewan 207 570 363 18.3 14.00 9.97Bandanna 570 684 114 6.4 12.50 10.53Black Alley 684 858 174 10.1 14.00 10.70Tinowon 858 1212 354 22.4 12.75 11.17Timbury Hills 1212 1615 403 19.3 14.50 9.72T. D. 1615

Concentrations:

Concentration levels on this well, Fairview # 77, were higher than those on the previous well, Dawson Bend # 1. The higher levels of KCL are directly attributable to the requests of the Tipperary representative to raise the mud weight. This was done each time with KCL and these weights were maintained with the same product. Then, with regards polymer utilisation, for both Pac and PHPA, the extra required in the dumping and diluting phase to reduce the mud weight contributed, not so much to extra concentration levels because of the volumes involved, but certainly did contribute to the extra quantities used.

-


Fairview #77

Attachment 3

Electric Log Report

-

Electric Log Report

Summary

Fairview 77 was drilled as an exploration well to evaluate coals in the Bandanna Formation and possible fractures in pre-Permian basement. The well spudded on 31 st July, 2003, and reached TD at 1615 metres (Drlr) on 23rd August, 2003 in metasediments of the Timbury Hills Formation. The hole was logged at TD with Schlumberger using the HALS-BHC- PEX and FMI-GR logging suite.

Logs indicate 12.85 metres of coal in the Bandanna Formation but analysis has failed to identify any permeable sands in the Permo-Triassic section. Possible pay sands typically have high lithic content, negligible invasion and overgauge borehole consequently no zones with elevated resistivity are interpreted as pay.

The Timbury Hills basement at 1211 metres (logr) recorded dips of 40º to the south - west: upon intersecting basement the bit trajectory rotated 90º to the north-east to penetrate the formation orthogonal to the dip plane. Caliper logs indicated significant washout and overgauge hole in agreement with carbide data. Processed FMI data showed fractures in the Timbury Hills Formation and the well was completed to allow future evaluation of the basement. Production casing was run to the base of the Permian section and the Timbury Hills Formation to TD was left open for future access.

Discussion

Fairview 77 was drilled as an exploration well on the flank of the Fairview anticline. Primary objectives for the well were coals in the Bandanna Formation and possible sands in the Rewan Formation were listed as secondary objectives. The Timbury Hills basement was also a target for evaluation of fractures for possible water injection and disposal. The logging suite included the FMI- GR tool to aid the identification of fractures.

Fairview 77 spudded on 31st July and drilled to surface casing point at 210 metres. 211mm casing was run to 207 metres and the well was drilled to TD at 1615 metres. Sands were evaluated while drilling with drilling breaks and coal peaks being circulated to surface but no significant shows in sands were observed. Carbide checks indicated overgauge hole of up to 25% in the upper section increasing to over 30% oversize by TD. Metasedimentary basement of the Timbury Hills Formation was intersected at 1212 metres (drlr) and penetration rate slowed due to the highly silicified nature of the lithology. Deviation was controlled in the Permian section in accordance with the drilling programme but increased markedly upon intersection of basement. The bit subsequently was permitted to drift to maintain an acceptable penetration rate in recognition of the high angle of dip anticipated in basement: deviation increased at a relatively uniform rate and reached a maximum of 15º approaching TD. The bit was predicted to penetrate the basement orthogonal to the regional dip and FMI dipmeter data subsequently showed the bit azimuth rotating to assume a north-east direction towards a south- westerly dipping Timbury Hills Formation.

The well was logged at TD with the Schlumberger HALS-BHC-PEX suite and FMI-GR. The PEX tool was run to surface and the FMI was run from TD to 1140 metres, 72 metres above the pre- Permian unconformity surface. FMI digital data was driven to Roma for subsequent transmission to Schlumberger’s Perth office for processing.

-

The following logs were run in Fairview 77:

GR [PEX] TD to surfaceBHC TD to surface casing shoe HALS TD to surface casing shoe NPHI TD to surfaceRHO TD to surface casing shoePEF TD to surface casing shoe

GR [FMI] TD to 1140 metresFMI TD to 1140 metres

No hole or tool problems were recorded. Logs were depth corrected after correlation with repeat sections and data was acquired at 1800 feet/ hour (high resolution mode). Integrated borehole volume data confirmed oversize hole ranging up to 14 inches maximum in proximity to the top pre-Permian unconformity surface (1211m Logr.). The MCFL micro-resistivity tool was used to determine Rxo and is claimed to offer superior resolution to the MSFL in rugose hole; despite being over gauge, however, the borehole was relatively uniform (protracted washout in contrast to irregular rugosity) and pad contact tools (MCFL and RHO8 density) acquired data. The absence of Rxo invasion as measured by the MCFL and superimposition of the Rxo-Rlls-Rlld curves showed sands to be tight.

SP deflection is minimal (ca. 10 mv) across sands to 1060 metres due, presumably, to impact of matrix fines on permeability rather than similarity between mud filtrate and formation water resistivity: SP deflection increases with contrast between Rmf and Rw but this trend was not apparent in the well. Rmf is very low [0.1386 ohm.m @ 25.2ºC] due to high salinity [24,000 – 25,000 ppm chlorides] and this value should be in marked contrast to the higher formation water resistivity (estimated to be >0.5 ohm.m @ 25ºC). The SP shows a bulk shift from approximately -60 mv to -40 mv at 1064 metres but intra-formational variation from sand to contiguous shales down to top basement (1211 m logr.) is minimal. No confirmed permeable water wet zones from which Rw could be derived were intersected.

Sands in the Permian-Triassic section were characterised by high gamma ray (> 80 API), high PEF (>2.5 due to lithics and clay content), and low to nil permeability (Rxo ~ Rlls ~ Rlld). The combination of high matrix (high Vsh) and low permeability eliminates all potential pay sands in the Triassic Rewan Formation and underlying Late Permian Bandanna, Black Alley Shale and Tinowon formations. The SP is not regarded as reliable for determination of Rw and a figure of ~0.15 ohm.m @ 25ºC has been inferred from regional data.

Logs over coals in the Bandanna Formation were analysed using neutron-density Vshale because the gamma ray tool lacked adequate resolution in thin beds. The analysis plots 1 and 2 below show the interpreted zones and specific intervals are tabulated.

-

Plot 1.Bandanna Formation, top (A and B) coals

Plot 2.Bandanna Formation, lower (D) coals

-

The following coal intervals and thickness were identified with gas shows where specifically recorded:-

Formation Depth [m] Thickness [m] Mudlog gas [units]Bandanna Fm.. 570.2 – 571.75 1.55 3717

588.6 – 590.8 1.8 2502592.3 – 595.5 3.2 2691616.6 – 617.5 0.9 Line blockage618.0 – 618.8 0.8 Line blockage619.8 – 620.5 0.7 Line blockage621.5 – 622.6 1.1 1448623.3 – 624.0 0.7624.3 – 624.7 0.4 1448626.0 – 626.6 0.6627.8 – 628.8 1.0 1245629.2 – 629.3 0.1

Total 12.85 metres

The extremely silicified Timbury Hills basement (metasandstone grading to quartzite) required high input voltage to overcome high formation resistivity and processed FMI data plot dominantly in the yellow-white spectrum. The cause of silicification is not known but may be typical for the Timbury Hills Formation – published reports do not appear to describe such lithology, due either to the limited penetration of the basement (i.e. wells terminating in the weathered zone at or near the top unconformity surface) or Fairview 77 may have been drilled in a region of elevated geothermal gradient due to proximity to underlying Roma Granite.

The three plots (Timbury Hills Formation plots 3, 4 and 5) show the increasing degree of silicification both above and below a suggested mylonite zone at 1451 – 1465 metres (plot 4). The low gamma response, high neutron porosity and overgauge hole recorded across the mylonite interval infer highly argillaceous and dispersive lithology.

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Plot 3.Timbury Hills Formation basement, top weathered unconformity surface

Plot 4.Timbury Hills Formation basement, suggested mylonite zone showing high (?)kaolinite content

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Plot 5.Timbury Hills Formation basement, lower section, Fairview 77

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WELL COMPLETION REPORT FOR

FAIRVIEW 77

WIRE LINE LOG DATA

ADDITIONAL DATA CAN

BE OBTAINED

BY CONTACTIN

G

Geoscience Information

Services Department of Natural Resources and Mines (DNRM)

[email protected] (07) 3035 5256

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