saga pswleum a.s mud properties, - · pdf file2911.0 3048.0 3110.0 mud weight 1.12 1.06 1.12...

Saga PSWleum a.s 6.2.1 MUD PROPERTIES,

Well: 34/4-8

Date

940520940521940522940523940524940525940526940527940528940529940530940531940601940602940603940604940605940606940607940608940609940610940611940612940613940614940615

HolesizePSPUDPSPUD9 7/8"3 6 "3 6 "17 1/2"17 1/2"17 1/2"17 1/2"17 1/2"17 1/2"12 1/4"12 1/4"12 1/4"12 1/4"12 1/4"12 1/4"12 1/4"12 1/4"12 1/4"8 1/2"8 1/2"8 1/2"8 1/2"8 1/2"8 1/2"8 1/2"

Holedepth

4 9 9 . 04 9 9 . 04 9 9 . 0502.09 9 6 . 0

1410.01460.01460.01460.01590.02064.02179.02396.02485.02655.02693.02693.02693.02693.02707.02791.02829.02911.03048.03110.0

Mudweight

1.121 . 0 61.121.121.181.181.281 . 2 61.301.501 . 5 91 . 5 91 . 5 91 . 5 91.591 . 6 01 . 6 01 . 6 01 . 6 01 . 6 01 . 6 31 . 6 31 . 6 31 . 6 31 . 6 3

PV

8 . 015,08.06 . 05 . 0

28.024.030.027.034.02 9 . 030.032.032.032.02 6 . 028.027.028.027.027.023.0

YP

22.028.024.019 . 01 6 . 023.02 6 . 033.028.03 6 . 02 9 . 030.031.032.032.023.020.027.02 6 . 023.025.023.0

Gelstrength

/////

11/2331/6318/3216/2515/232/34/86/156/157/187/166/198/248/258/266/216/247/287/277/3111/3811/38

PH

9 . 09 . 49 . 5

10.09 . 08.27 , 07 . 18.48.48.58.38.07 . 87 . 97 . 97 . 97 . 98 . 08.58.48.38.48.28.2

Alkalinity Ca++Pf /Mf mg/1

/////////// 200/.5 160/.2 120/.4 120/.3 120/.3 80/.3 120/.3 1201,2 160/.2 160/.3 80

. 1 / . 4 120

. 1 / . 5 120

. 1 / . 4 120/.5 120/.4 120/.4 120

Cl-mg/1

6000068000750007700076000700007500071000700007000072000660006100061000610006100060000

Sand

. 5

. 5

. 5

. 5

. 5

. 5

. 5

. 5

. 5

. 5

. 5

. 6

. 5

. 5

. 5

. 5

Solids

11.018.021.523.022.022.024.023.023.023.023.024.02 6 . 02 6 . 02 6 . 02 6 . 02 6 . 0

Mudtype

SPUD MUDSPUD MUDGEL MUDGEL MUDGEL MUDGEL MUDGEL MUDGEL MUDGEL MUDGEL MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUD

3e BSaga PelKleum a . s . 6 . 2 . 1 MUD PROPERTIES,Well: 34/4-8

Date

940616940617940618940619940620940621

Holesize

8 1/2"8 1/2"P&AP&AP&AP&A

Holedepth3110.03110.03110.0435.0435.0435.0

Mudweight1 . 6 31 . 6 31 . 6 01,451.511.51

PV

23.023.023.02 6 . 02 6 . 02 6 . 0

YP

24.024.022.015.01 6 . 01 6 . 0

Gelstrength10/5010/498/448/448/448/44

PH

8 , 18.28 . 68.78.88.8

Alkalinity Ca++Pf /Mf mg/1

/.3 120/.3 120/.4 100/.6 100/.6 100

Cl-mg/1610006100060000450005400054000

Sand

. 5

. 5

. 1

. 1

. 1

Solids

2 6 . 02 6 . 025.020.022.033.8

Mudtype

KC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUDKC1 MUD

Table 6.2.2TOTAL MUDCONSUMPTION WELL 34/4-8

BentoniteBariteSoda AshPrempac EXCaustic SodaLimeDefoamerSodium BicarbonateDrill StarchCitric AcidBentonite(sxs)Kcl-brine3%GlycolXanvisGlycolPrempac LVPot.BicarbonateRenax 100KCL

••ITonsTonsKgKgKgKgLtrKgKgKgKgm3

Kgm3

KgKgLtrTons

4967

350150350

2685

125

200340175275

4250200

I'i-SS-jf-Sx^S&SiSSS::1.jiigiiEEIEgsllii

4414

756600

5020

100

300200337

142515.9

2625

62411

80375350

700

1375

6.9850175

W&X&fflttZ'ffftt&ff-f&X-:S?ft?ft?¥S?f:?K5:>$:-w5S?:«

79646925

7 100600360175375

42501200

200350

150022.83475

175624

11

J:\SBT\U17401\DI94-007.DOC

GEOGHEM

11GEOCHEM GROUP LIMITED

REPORT 94/9365/001/01

A GEOCHEMICAL EVALUATION OF THE 34/4-8 WELL,

NORTH SEA (NORWEGIAN SECTOR)

Prepared for

SAGA PETROLEUM a.s.

DECEMBER 1994

Y E A R S O FE X C E L L E N C E

Geocbem GroupLimited

\ 9 !AH, M

II m ^!jj$$£%£70Mfå&?i «S)*-*'•;!«**';• w-^»*''•• ---.--T. •• • • • • . ' ' - •• y - - • • - • -

CONTENTS

Page

EXECUTIVE SUMMARY 1

Text Figure 1 - Well Location MapText Figure 2 - Summary Chart

INTRODUCTION 4

SOURCE RICHNESS 8

Text Figure 3 - PyrolysisText Figure 4 - Cross Plot of Tmax vs Hydrogen IndexText Figure 5 - Source Richness

THERMAL MATURATION 11

SHOW DETECTION AND CHARACTERISATION 14

Text Figure 6 - CrC7 Hydrocarbons

CORRELATION STUDY 18

CONCLUSIONS 19

TABLES

1 Organic carbon results and gross lithologic descriptions

2 Rock Eval pyrolysis data3 Vitrinite reflectance data (generated by IFE)4 IFE's interpreted vitrinite reflectance versus depth trend5 Concentration (/j\ gas/kg rock) of C,-C7 hydrocarbons in headspace gas6 Concentration (u\ gas/kg rock) of CrC7 hydrocarbons in occluded gas7 Concentration (u\ gas/kg rock) of CrC7 hydrocarbons8 Concentration (ppm) of extracted C15+ material in rock9 Composition (normalised %) of C15+ material

10 Significant C15+ ratios

11 Composition (normalised %) of C15+ saturate hydrocarbons12 Additional saturates ratios

Report No. 94/9365/01/01 Page 2 Geochem Group Limited

13 Aromatics ratios (calculated from aromatic hydrocarbon biomarker peak areas)14 Biomarker abundances (peak areas) - steranes (m/z 217)15 Biomarker abundances (peak areas) - steranes (m/z 218)

16 Biomarker abundances (peak areas) - triterpanes (m/z 191 and m/z 177)17 Biomarker abundances (peak areas) - monoaromatic steranes (m/z 253)18 Biomarker abundances (peak areas) - triaromatic steranes (m/z 231)19 Biomarker abundances (peak areas) - aromatics20 Biomarker molecular ratios

APPENDIX FIGURES

8 Saturates (paraffin-naphthene) gas chromatograms9 Aromatics gas chromatograms10 Mass fragmentograms - steranes11 Mass fragmentograms - terpanes12 Mass fragmentograms - aromatic steranes

13 Mass fragmentograms - phenanthrene series14 Mass fragmentograms - dibenzothiophene series15 Mass fragmentograms - naphthalene series16 Mass fragmentograms - biphenyl series


INTRODUCTION

This report presents the results of a geochemical evaluation of well 34/4-8 drilled bySaga Petroleum a.s. in the Norwegian Sector of the North Sea.

ANALYTICAL

Two hundred and fifty eight (258) canned ditch cuttings samples from the section

between 510 - 3101 metres and seventy seven (77) bagged cuttings samples from the

intervals 2200 - 2505 metres and 2760 - 2810 metres were made available for thisstudy. The canned samples were collected at intervals of ten metres above 2760


metres and every nine metres below this depth, while the bagged ditch cuttings werecollected at intervals of five metres (2200 - 2505 metres) and three metres (2760 -2810 metres). No samples were received from 1010 metres, 1300 metres and 1930metres. The samples which arrived at the Geochem Group's laboratories in twobatches on the 29th July, 1994 and the 9th September, 1994 were assigned theGeochem Group job number 9365. Lists of the samples received by Geochem weresubmitted to the client by fax within two working days of sample receipt.

Geochem were authorised to perform headspace and occluded gas analyses atintervals of fifty metres but every twenty five metres between 2210 - 2485 metres andto undertake lithological descriptions and total organic carbon and Rock Eval pyrolysisanalyses for all bagged samples in the interval 2768 - 2805 metres approximately.Samples for C15+ extraction with iatroscan and for GC, GC MS and carbon isotopeanalyses were selected by the client on the basis of screening results generated bythe Geochem Group.

The following analyses were carried out during the course of this study:

AnalysisSample Type

Cuttings SWC Core Fluid

Headspace gasOccluded gasSample preparation, description and pickingTotal organic carbon contentRock Eval pyrolysisC15+ extraction with iatroscanLiquid chromatographic separationGC analysis - saturates fractionGC analysis - aromatics fraction

59

59

18

13

13

141 4 . . .

14

3


GC MS - saturates fraction 5

GC MS - aromatics fraction 5


TABLE 1ORGANIC CARBON RESULTS AND GROSS LITH3LOGIC DESCRIPTIONS

JOB 9365GEOCHEMSAMPLENUMBER

DEPTH/IDENTITY

GROSS LITHOLOGIC DESCRIPTIONG S ACOLOURCODE

TOTALORGANICCARBON

(Wt. %)

WELL: 34/4-89365-017

9365-022

9365-035

9365-063

9365-064

9365-065

9365-066

9365-067

9365-068

9365-069

2280m A100% CLAYSTONE - platy, firm, non-calc, N4medium dark grey to medium light N6grey.2310m A100% CLAYSTONE - as 017A, medium dark N4grey to medium light grey. N62380m A100% CLAYSTONE - as 017A, medium dark N4grey to medium light grey. N62768m A 85% SAND - fine grained, sub-angular to 10YR7/4rounded, si haematitic, no F, no C,greyish orange.

B 15% CLAYSTONE - platy, mod hard, non- N5 0.70calc, silty, medium grey.2771m A 80% SAND - as 063A, no F, no C, greyish 10YR7/4

orange.B 10% LCM - metal.C 5% Red claystone.D 5% Limestone.

2774m A 60% SAND - fine grained, sub-angular to 10R6/2rounded, haematitic, no F, no C,pale red.

B 35% CALC CLAYSTONE - blocky, firm, 10R4/2 0.15haematitic, grades to arglimestone, greyish red.C 5% Limestone.

2777m A 60% SAND - as 065A, no F, no C, palered.B 20% CALC CLAYSTONE - as 065B, greyishred.C 20% LIMESTONE - blocky, mod hard,

yellow F, no C, very pale orange.2780m A 50% CALC CLAYSTONE - as 065B, greyish

red.B 25% CLAYSTONE - blocky, mod soft, si

to mod calc, medium grey.C 20% SAND - as 065A, no F, no C, palered.D 5% Limestone.

2783m A 85% CLAYSTONE - as 067B, medium grey. N5 1.22B 5% Red claystone.C 5% Sand.D 5% Limestone.

2786m A 90% CLAYSTONE - as 067B, medium grey. N5 1.20

10R6/210R4/210YR8/2

10R4/2N510R6/2

0.110.11

0.150.88

Abbreviations = arenaceous, argillaceous, calcareous, Cut, dolomite, Fluorescence, foramini ferafossil iferous, Lost Circulation Material, moderately, occasionally, s l i g h t l y , very

TABLE 1ORGANIC CARBON RESULTS AND GROSS LITfOJOGIC DESCRIPTIONS


DEPTH/IDENTITY

GROSS LITHDLOGIC DESCRIPTIONG S ACOLOURCODE

TOTALORGANICCARBON

(Wt. %)

9365-070

9365-071

B 5% Sand.C 5% Red claystone, limestone.2789m A 95% CLAYSTONE - as 067B, medium grey. N5

B 5% Sand.2792m A 60% SAND - fine to med grained, sub- N8angular, no F, no C, very lightgrey.

B 35% CALC CLAYSTQNE - blocky, firm, N5grades to arg limestone, mediumgrey.Limestone.SAND - as 071A, no F, no C, very N8light grey.CALC CLAYSTONE - as 071B, medium N5grey.SAND - as 071A, no F, no C, very N8light grey.CALC CLAYSTONE - blocky, firm, N3grades to arg limestone, dark grey.Medium grey calc claystone.Red claystone, limestone.SAND - as 071A, no F, no C, very N8light grey.CALC CLAYSTONE - as 073B, dark grey N3Medium grey calc claystone.SAND - fine to medium grained, N9sub-angular, translucent, no F, noC, white.SAND - as 075A, no F, no C, white. N9SAND - as 075A, no F, no C, white. N9

9365-072

9365-073

9365-074

9365-075

9365-0769365-077

C 5%2795m A 70%

B 30%

2798m A 80%B 10%C 5%D 5%

2801m A 85%B 10%C 5%

2804m A100%

2807m A100%2810m A100%

1.02

1.02

0.95

0 . 9 6

0.72

Abbreviations = arenaceous, argillaceous, calcareous, Cut, dolomite, Fluorescence, foramini ferafossil iferous, Lost Circulation Material, moderately, occasionally, s l i g h t l y , very

TABLE 2ROCKEVAL PYROLYSIS DATA

r ^ 9365GEOCHEMSAMPLENUMBER

DEPTH/IDENTITY

TOC( % )

SI(mg/g)

S2(mg/g)

S3(mg/g)

PRODUCTIONINDEX

HYDROGENINDEX

OXYGENINDEX

TMAX( ° c )

WELL: 34/4-89365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9.

•063B•065B•066B•066C•067A•067B•068A•069A•070A•071B•072B•073B074B

2768m2774m2777m2777m2780m2780m2783m2786m2789m2792m2795m2798m2801m

0.700.150.110.110.150.881.221.201.021.020.950 . 9 60.72

1.000.440.300.200.862.042.653.513.313 . 6 93.053.282.27

0.600.740.250.320.371.091.882.611.651.491.791.851.21

0.440.180.160.160.191.030.550.610.760.510.320.250.20

0.630.370.550.380.700.650.590.570.670.710.630.640.65

85.7493.3227.3290.9246.7123.9154.1217.5161.8146.1188.4192.7168.1

6 2 . 9120.0145.5145.5126.7117.045.150.874.550.033.726.027.8

381445450441447378439436436433439374372

PRODUCTION INDEX = SI / (SI + S2)OXYGEN INDEX = 100 x S3 / TOC

HYDROGEN INDEX = 100 x S2 / TOC

TABLE 3VITRINITE REFLECTANCE DATA (GENERATED BY IFE)

Well 34/4-8

Depth, mRK

510

600

700

800

900

1000

1 1 0 0

1200

1 3 1 0

1400

1500

1600

1700

1800

1900

2000

2100

2195

2510

2600

2700

2900

2999

3101

Sampletype

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

cut

Lithology

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

clst

%Rm

0.22

0.19

0.26

0.28

0.25

0.29

0.31

0.31

0.38

0.42

0.40

0.42

0.47

0.45

0.57

0.61

0.54

0.49

Std. dev.

0.03

0.01

0.05

0.04

0.04

0.04

0.04

0.03

0.06

0.07

0.04

0.03

0.06

0.03

0.08

0.07

0.07

0.00

N

13

3

8

22

22

14

22

1 1

28

23

21

20

28

12

27

25

1 1

1

Quality

barren

barren

barren

Mod

Mod

Mod

barren

Mod

Mod

Mod

Mod

Mod

Poor

Poor

Mod

Mod

Mod

Poor

Poor

Mod

Mod

barren

Poor

barren

TABLE 4

IFE'S INTERPRETED VITRINITE REFLECTANCE VERSUS DEPTH TREND

Well 34/4-8 Depth, mRKBsea bed4005006007008009001000110012001300140015001600170018001900200021002200230024002500260027002800290030003100

%Rm-trend

0.200.210.220.230.250.260.280.290.310.330.350.380.400.430.450.470.490.520.540.560.590.61

TABLE 5CX3NCENTRATIQN (pL GAS / Kg ROCK) OF C HYDROCARBONS IN HEAD SPACE GAS


DEPTH/IDENTITY

CiMethaneC2Ethane C3Propane

iC4IsobutanenC4Butane

TOTALCi-C4

TOTALC2-C4

%GAS

WETNESSTOTALC5-C7

iC4nC4

WELL: 34/4-89365-078 51Qm9365-083 560m9365-088 610m9365-092 660m9365-097 710m9365-102 760m9365-107 810m9365-112 860m9365-117 910m9365-122 960m9365-126 1000m9365-131 1060m9365-136 1110m9365-141 1160m9365-146 1210m9365-151 1260m9365-155 1310m9365-160 1360m9365-165 1410m9365-170 1460m9365-175 1510m9365-180 1560m9365-185 1610m9365-190 1660m9365-195 1710m9365-200 1760m9365-205 1810m9365-210 1860m9365-215 1910m9365-219 1960m9365-224 2010m9365-229 2060m

983374744104

1179112345154487243

112641541115190103288978798470172251511798173656837882149213407208132681077840611500122636346772356476494

220013710571175677313247751295910375468527879102

220053422442223914453

16151399163244355172104

000022000000600020002242104131315213542

20003000000040005000544312491115183340

1033378744104

1181312357154627249112721542615200103358995799370272255411852174166849883049563438210732911119846711607123986462789158666782

5400221213691511717910405451128353125224261107135116168219288

4 . 60.10.00.00.20.10000000.20.10.10.20.0.0.0.0.0 . 91.20.73.70.70 . 91.11.82.13.74.2

0000000000000000000014393815214314368616285112

0.000.000.000.000.500.000.000.000.000.000.000.001.500.000.000.000.330.000.000.000.500.501.000.500.861.001.501.201.001.201.061.05

TABLE 5CONCENTRATION (pL GAS / Kg ROCK) OF C:-C7 HYDROCARBONS IN HEAD SPACE


9365-2349365-2399365-0039365-0079365-0139365-0179365-0229365-0259365-0319365-0359365-0419365-0459365-0519365-0559365-2439365-2489365-2539365-2589365-2639365-0619365-0759365-2709365-2769365-2819365-2879365-2929365-298

DEPTH/IDENTITY

2110m2160m2210m2230m2260m2280m2310m2330m2360m2380m2410m2430m2460m2480m2510m2560m2610m2660m2710m2760m2804m2849m2903m2948m3002m3047m3101m

CiMethane

41596632246167123026357179465710509811462755727733041288472318115714416301244536523119252318282154

C2Ethane

52124562101271863192662243643258710785235

269

6073294679793

C3Propane

5628421798597121823747341425322409140322718713557132813788738796

39112720

iC4Isobutane

23149151687659153724181982132289339974777228210675062709000

nC4Butane

222514702048236255519437814650152782932177121126655158135611306

39152919

TOTALCi-C4

431274403355106427144130282386719518141911791010616333835343303896205

16494777871511621705138349351348197

TOTALC2-C4

1538078943930411894571592113808909364483059566492419173237836157267841821998336642

GAS

%GAS

WETNESS

3 . 610.926.73 6 . 957.672.66 6 . 770.764.136.028.81 6 . 913.912.719.311.54.77.5

20.017.713.625.814.028.09 . 4

18.821.6

TOTALC5-C7

452092053567876561486319453130429473447924336784154252552842178914219000500

iC4nC4

1.070.590.320.340.280.280.260.240.260.320.430.420.640.570.430.330.670.800.500.890.600.910.000.240.000.000.00

TABLE 6CONCENTRATION (pL GAS / Kg ROCK) OF d-C7 HYDROCARBONS IN CUITINGS GAS


DEPTH/IDENTITY

CiMethane C2Ethane C3PropaneiC4Isobutane

nC4ButaneTOTALCi~C4

TOTALC2-C4

%GAS

WETNESSTOTALC5-C7

iC4nC4

WELL: 34/4-89365-078 510m9365-083 560m9365-088 610m9365-092 660m9365-097 710m9365-102 760m9365-107 810m9365-112 860m9365-117 910m9365-122 960m9365-126 1000m9365-131 1060m9365-136 1110m9365-141 1160m9365-146 1210m9365-151 1260m9365-155 1310m9365-160 1360m9365-165 1410m9365-170 1460m9365-175 1510m9365-180 1560m9365-185 1610m9365-190 1660m9365-195 1710m9365-200 1760m9365-205 1810m9365-210 1860m9365-215 1910m9365-219 1960m9365-224 2010m9365-229 2060m

3281621105011101263542503755445509645472521495352490386

1619402

16011106329409913815815320017270104

311113551197657771275103145422566471244

05703383304060875103012953106172028211238

00000000000000200030000020424121216

00000000000000300080002310097725822

3311637106811131271551522767455514654479534502378504397

1639420

1615127763848127150195185246242105184

316183891912106971372513112019141613992812363346713580

1.01.01.70.30 . 61 . 63 . 61 . 62.31.11.41.52.41.46 . 72 . 62.71.24.40.8

12.717.123.817.921.98.1

18.717.618.829.233.343.5

000000000000000000000222933680

1738774120182174

0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.500.000.000.000.400.000.000.000.000.000.170.000.500.330.500.501.500.73

TABLE 6CONCENTRATION (pL GAS / Kg ROCK) OF ? HYDROCARBONS IN CUTTINGS GAS


9365-2349365-2399365-0039365-0079365-0139365-0179365-0229365-0259365-0319365-0359365-0419365-0459365-0519365-0559365-2439365-2489365-2539365-2589365-2639365-0619365-0759365-2709365-2769365-2819365-2879365-2929365-298

DEPTH/IDENTITY


CiMethane

2021001721461151242189610513011516655265422280673166781003039305873

C2Ethane

57663141666813133102223254834143

C3Propane

14354211116731037030220916119452254195813927151638345

iC4Isobutane

111847165261528458360218110102219245239232300000

nC4Butane

2349

199770

1281266527712348129459034079367316571991481400000

TOTALCi~C4

255209466

1197182836413833311218321000765331128413743499111531141071413651346681

TOTALC2~C4

53109294

105117133517361530161726870649165731483213204422492941611478

%GAS

WETNESS

20.952.163.187.893.79 6 . 694.39 6 . 994.287.084.949.856.83 5 . 942.936.419.739.441.742.727.528.816.722.212.011.110.4

TOTALC5-C7

8121544451638920384331742766619850156815260321617166567064125996881532492063800000

iC4nC4

0.470.360.230.210.200.200.170.150.170.190.300.260.240.320.330.330.500.500.250.220.250.200.000.000.000.000.00

TABLE 7CONCENTRATION (pL GAS / Kg ROCK) OF HYDROCARBONS (A + B)


DEPTH/IDENTITY

CiMethaneC2 C3Ethane Propane

iC4 nC4Isobutane ButaneTOTALCI-CA

TOTALC2~C4

%GAS

WETNESSTOTALC5-C7

iC4nC4

WELL: 34/4-89365-0789365-0839365-0889365-0929365-0979365-1029365-1079365-1129365-1179365-1229365-1269365-1319365-1369365-1419365-1469365-1519365-1559365-1609365-1659365-1709365-1759365-1809365-1859365-1909365-1959365-2009365-2059365-2109365-2159365-2199365-2249365-229

510m560m610m660m710m760m810m860m910m960m1000m1060m1110m1160m1210m1260m1310m1360m1410m1460m1510m1560m1610m1660m1710m1760m1810m1860m1910m1960m2010m2060m

4264995179512141305412887159527998

11709159201583510800949984797369230051218418983723910423503234702110330811768544

11658124166545789557176598

5 213 711 73 018 812 721 1114 514 517 412 713 213 714 219 1238 1638 2057 1410 819 316 2813 247 1810 1216 1943 2260 4972 6359 6390 7283 83106 142

0 20 00 00 02 32 00 00 00 00 00 00 06 40 02 30 02 50 03 80 02 52 44 52 712 234 417 1715 1718 2234 4246 4158 62

43450151812121713085129081598480161172715941158551081495298495740523058122481905472691044550833514214533391246861711802125836708813359706966

82018331213218192119153016365365713122514435317073143168163239254368

1.80.41.00.20.20.20.20.20.20.10.10.10.30.20.50.20.50.40.40.21.01.21 . 60 . 95 . 60.81.21.32.42 . 94.25 . 3

00000000000000000000146167488943317155135182267286

0.000.000.000.000.500.000.000.000.000.000.000.001.500.000.500.000.330.000.400.000.500.500.670.250.541.001.000.880.830.791.140.94

TABLE 7CONCENTRATION (pL GAS / Kg ROCK) OF HYDROCARBONS (A + B)


9365-2349365-2399365-0039365-0079365-0139365-0179365-0229365-0259365-0319365-0359365-0419365-0459365-0519365-0559365-2439365-2489365-2539365-2589365-2639365-0619365-0759365-2709365-2769365-2819365-2879365-2929365-298

DEPTH/IDENTITY


CiMethane

436167322633685831413695816458065203

115927673293930963148766203

1651508661

1310614624149291348341227

C2Ethane

56131632161312003352722293723381001109625628136278345410138137

C3Propane

70319258

1096113824924117371627412570159727921217665173625871145395947143125

iC4Isobutane

3416619785292020652877234215401004501958696343131695383009000

nC4Butane

45299669

28173643821612208104946309337312722571572008192127227019436

39152919

TOTALCi-C4

456776483821

118408972

166692770022630160231891011381367036613716971239

1749588841

1626728846174400385413278

TOTALC2~C4

206916

118849815832129741953616824108197318370873056556720536988018031613422225109377351

%GAS

WETNESS

4.512.031.142.165.077.870.574.367.538.732.61 9 . 915.415.321.115.05 . 6

13.621.419.415.626.314.527.29 . 6

17.618.3

TOTALCs~C7

127424649822067280414803747120328922515497385649239410721130667881381052423902253800500

iC4nC4

0.760.560.300.300.250.250.240.220.240.300.390.370.550.480.410.330.620.590.400.760.440 . 6 90.000.240.000.000.00

TABLE 8CONCENTRATION (FFM) OF EXTRACTED C15+ MATERIAL IN ROCK


LITH0

DEPTH/IDENTITY

TOTALEXTRACT

HTOROCARBONS

Saturates Arcmatics TOTAL

NON HYDROCARBONS

Preciptd.Asphaltenes

ElutedNSO's

Non-ElutedNSO's

TOTAL

WELL: 34/4-89365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-

-017A-022A-035A-063B-065B-066B/C-067A/B-068A-069A-070A-071B-072B-073B-074B

2280m2310m2380m2768m2774m2777m2780m2783m2786m2789m2792m2795m2798m2801m

6456578856883450956643800628273097584944410603863970286489

38073111316214159841156293213110144225157292219

1757148117525472501565466442764665967

556445924914196212341311347279154170289223351286

8251102724218974214077496662574381200356391389

517535

301513664105951566351715088179074804262585795

17201520823222914221941172819

8931196774

3254744302489593470317430927310314841666776203

TABLE 9COMPOSITION (NORMALISED %) OF C15+ MATERIAL

1 "OB 9365GEOCHEMSAMPLENUMBER

LITH0

DEPTH/IDENTITY

HYDROCARBONS

Saturates Arcmatics

NON HYDROCARBONS

Preciptd.Asphaltenes

ElutedNSO's

Non-ElutedNSO's

WELL: 34/4-893659365936593659365936593659365936593659365

017A022A035A063B065B066B/C067A/B068A069A070A071B-072B-073B-074B

2280m2310m2380m2768m2774m2777m2780m2783m2786m2789m2792m2795m2798m2801m

58.9653.7555.594.10

17.3830.414.662.911.451.522.121.824.153.37

27.2125.5830.801.594.414.090.870.910.580.280.600.770.841.03

12.7719.0412.736.34

13.1037.0411.929.113.394.63

11.314.135.565.99

0.781.290.61

87.3764.6927.8882.0886.8894.2993.3685.5893.0989.0489.31

0.270.340.270.600.410.580.470.190.300.200.380.200.400.30

TABLE 10SIGNIFICANT C15+ RATIOS


LITH0

DEPTH/IDENTITY

TOC(% )

mg/g TOCTOTALEXTRACT SATURATES ARCMATICS

TOTALHYDROCARBONS

ELUTEDNSO's ASPHALTENES

HYDROCARBONS%

TOTAL EXTRACTSATURATESARCMATICS

WELL: 34/4-89365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-9365-

•017A•022A•035A•063B•065B•066B/C•067A/B068A•069A•070A•071B•072B•073B•074B

2280m2310m2380m2768m2774m2777m2780m2783m2786m2789m2792m2795m2798m2801m

0.850.850.820.700.150.110.391.221.201.021.020.950 . 9 60.72

759.54680.92693.70

4929.923776.043454.551610.70599.12631.98925.851039.48909.35732.11901.23

447.83366.00385.60202.16656.251050.51

75.1017.429.1414.1022.0416.5130.4130.37

206.70174.20213.6578.17

166.67141.4113.955.423 . 6 62.606.276 . 9 66.179 . 2 9

654.53540.20599.25280.32822.92

1191.9289.0522.8412.8016.7028.3123.4736.5839.65

5 . 9 68.794.23

4307.282442.71962. 9 61322.10520.54595.86864.40889.57846.53651.89804.90

97.03129.6288.33

312.67494.791279.46192.0454.5921.4542.90

117.6137.5140.7053.97

86.1879.3386.395 . 6 9

21.7934.50

,53,81,02,80

2.722.585.004.40

17108059944338

3.212.505.423.522.374.933.27

TABLE 11COMPOSITION (NORMALISED %) OF C15+ SATURATE (PARAFFIN - NAPHEHENE) HYDROCARBONS

GEOCHEM SAMPLENUMBERDEPTH

SAMPLE TYPE

nC15nC16nC17nC18nC19nC20nC21nC22nC23nC24nC25->C26:27

aC28nC29nC30nC31nC32nC33nC34nC35ParaffjnIsoprenoidNaphthene

CPI 1 IndexCPI 2 IndexCPI 3 Index

Prist/PhytanePrist/nC17Phytane/nC18

017A2280m

022A2310m

035A2380m

063B2768m

065B2774m

066B/C2777m

9 . 9 810.099 . 9 89 . 3 97.987.755.875.164.584.113.872.823.051.883.171.532.351.761.761.171.76

11.622.46

85.92

1.061.381.30

1.850.870.50

10.0610.8810.399.748.126 . 4 95.845.364.714.383.902.922.762.112.761.302.443.251.950.490.166.531.12

92.35

1.031.171.10

1.330.630.50

6.888.137.506.884.384.383.133.132.502.505.001.253.134.385.005 . 6 35 . 6 35 . 6 33.136.255.63

10.722.85

86.43

1.221.241.11

1.110.830.82

8.439.136 . 6 58.056 . 9 04 . 6 94.335.305.575.385.294.404.943.505.102.525.301.471.900.700.487 . 7 91.93

90.28

1.051.521.25

0.400.601.23

14.3011.566.887.339.712.562.293.093.974.324.414.064.413.354.592.914.771.852.030.880.717.252.52

90.23

1.051.371.19

0.350.541.46

7.318.718.379.347.926 . 9 65.775.585.265.376.524.794.103.513.402.112.181.12 .0.940.490.22

10.162.13

87.71

1.041.220 . 9 9

0.530.430.73

C . P . I . 1=1 ( " C 2 1 + C23 + C25 + C27 + C21 + C23 + C25 + C27 12 L-C20 + C22 + C24 + C26 C22 + C24 + C26 + C28 J

C . P . I . 2 = I [~C25 + C27 + C29 + C31 + C25 + C27 + C29 + C31 12 Lc24 + C26 + C28 + C30 C26 + C28 + C30 + C32 J

C P . I . 3 = 2x (C27)C26 + C28

Job Number : 9365

CT - ditch cuttings CO - core SWC - sidewall core

TABLE 11COMPOSITION (NORMALISED %) OF C15+ SATURATE (PARAFFIN - NAPHTHENE) HYDROCARBONS


SAMPLE TYPE

nC15nC16nC17nC18nC19nC20nC21nC22nC23nC24nC25~>C26:27

iiC28nC29nC30nC31nC32nC33nC34nC35ParaffinIsoprenoidNaphthene

CPI 1 IndexCPI 2 IndexCPI 3 Index


067A/B2780m

068A2783m

069A2786m

070A2789m

071B2792m

072B2795m

9.157.746.038.34

11.664.723.923.825.235.036.034.925.533.724.522.513.021.411.810.500.408.212.16

89.63

1.151.351.28

0.330.471.02

11.269.245.519.248.734.753. 9 23.805.004.496.834.435.823.614.182.402.781.331.900.370.406.473.17

90.36

1.281.491.45

1.592.711.01

9.579.457.438.318.574.914.534.165.294.166 . 9 33.535.792.524.792.143.021.262.770.290.588.192.17

89.64

1.461.921.91

0.780.680.77

8.277.495.787.187.654.684.614.295.624.457 . 9 64.146 . 7 93.435.072.423.751.803.430.470.709.822.36

87.82

1.481.821.79

0.710.730.83

9 . 6 79.837.839 . 3 9

12.134.704.474.164.513.475.542.714.782.384.281.903.561.232.680.340.4710.103.35

86.55

1.401.971.88

0.570.650 . 9 6

7 . 6 67.026.389 . 2 6

16.285.434.47 •3.834.153.515.273.034.792.553.832.073.511.603.350 . 9 61.047.942.09

89.97

1.311.721.72

0.460.650.98

C . P . I . 1 = 1 f C21 + C23 + C25 + C27 + C21 + C23 + C25 + C27 12 LC20 + C22 + C24 + C26 C22 + C24 + C26 + C28 J

C . P . I . 2=1 f C25 + C27 + C29 + C31 + C25 + C27 + C29 + C31 "I2 L C24 + C26 + C28 + C30 C26 + C28 + C30 + C32 -I

C P . I . 3 = 2x (C27)C26 + C28

Job Number : 9365


TABLE 11COMPOSITION (NORMALISED %) OF C15+ SATURATE (PARAFFIN - NAPHTHENE) HYDROCARBONS


SAMPLE TYPE

nC15nC16nC17nC18nC19nC20nC21nC22nC23nC24nC25^C26:27

nC28nC29nC30nC31nC32nC33nC34nC35ParaffinIsoprenoidNaphthene

CPI 1 IndexCPI 2 IndexTI 3 Index


073B2798m

074B2801m

7.919 . 8 97.44

10.369.238.486 . 9 76.035.654.615.093.113.672.352.641.511.880.941.130.500.61

10.421.98

87.60

1.141.411.34

0.900.700.55

11.189 . 6 57.49

11.699.158.645.594.574.073.564.323.053.562.163.301.782.541.271.520.480.446.431 . 6 9

91.88

1.101.481.37

0.520.560.70

: . P . I . 1=1 fC21 + C23 + C25 + C27 + C21 + C23 + C25 + C27 12 LC20 + C22 + C24 + C26 C22 + C24 + C26 + C28 J

Job Number : 9365

C . P . I . 2 -- ! [~C25 + C27 + C29 + C 31 + C25 + C27 + C29 + C31 12 LC24 + C26 + C28 + C30 C26 + C28 + C30 + C32 J

M. 3 = 2x (C27)C26 + C28


TABLE 12

ADDITIONAL SATURATES RATIOS

GEOCHEMSAMPLENUMBER

9365-0 17A

9365-022A

9365-035A

9365-063B

9365-065B

9365-066B + C

9365-067A + B

9365-068A

9365-069A

9365-070A

9365-071 B

9365-072B

9365-073B

9365-074B

DEPTH

2280m

2310m

2380m

2768m

2774m

2777m

2780m

2783m

2786m

2789m

2792m

2795m

2798m

2801m

SAMPLE TYPE

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

Cuttings

A/B*A =_QrB = Ph

nC17 nCl8

1.74

1.26

1.01

0.49

0.37

0.59

0.46

2.68

0.88

0.88

0.68

0.66

1.27

0.80

nC17nC17 + nC27

0.77

0.79

0.71

0.57

0.61

0.67

0.52

0.49

0.56

0.46

0.62

0.57

0.67

0.68

^Values unreliable due to co-eluting contamination

TABLE 13

AROMATICS RATIOS(CALCULATED FROM AROMATIC HYDROCARBON BIOMARKER PEAK AREA DATA)

GEOCHEMSAMPLE NUMBER

9365-01 7A

9365-022A

9365-035

9365-069A

9365-070A

DEPTH

2280m

2310m

2380m

2786m

2789m

MPi 1

0.65

0.63

0.60

0.59

0.53

F1

0.44

0.39

0.39

0.36

0.39

F2

0.27

0.24

0.24

0.19

0.21

_ 3I2(2-MP + 3-MP)P + ^-MP + 9-MP

F1 = 3-MP + 2MP3-MP + 2-MP + 9-MP + 1-MP

F2 = 2-MP3-MP + 2-MP +9-MP + 1-AfP

TABLE 14

BIOMARKER ABUNDANCES - STERANES (PEAK AREAS), M/Z 217

GEOCHEM SAMPLENUMBER

DEPTH

SAMPLE TYPE

PEAK 27d0S

27d£R

28daR + 27aaS

27aaR

29d£S + 27/30R

29d£R

28crorR

29aaS

29røR

29#0S

29aaR

9365-01 7A

2280m

Cuttings

653

487

749

344

689

662

344

264

369

313

362

9365-022A

2310m

Cuttings

1346

1004

1382

786

1394

1197

623

397

766

609

738

9365-035A

2380m

Cuttings

1475

1093

2258

1241

1279

1090

1407

196

901

440

1165

9365-069A

2786m

Cuttings635

448

533

496

870

496

286

297

645

268

902

9365-070A

2789m

Cuttings

1225

1036

993

989

1622

1228

674

518

1 1 4 2

504

1561

TABLE 15

BIOMARKER ABUNDANCES - STERANES (PEAK AREAS), M/Z 218


DEPTH

SAMPLE TYPE

PEAK 27/30R

2700$

2800R

2800S

2900R

2900S

3Q00R

3000S

9365-01 7A

2280m

Cuttings

496

498

363

423

475

399

1 1 1

152

9365-022A

2310m

Cuttings

1088

766

875

679

930

851

203

442

9365-035A

2380m

Cuttings

1020

822

1162

884

891

727

1 1 2

417

9365-069A

2786m

Cuttings

596

456

249

280

546

367

29

37

9365-070A

2789m

Cuttings

1103

719

600

578

780

750

78

45

TABLE 16

BIOMARKER ABUNDANCES - TRITERPANES (PEAK AREAS)


DEPTH

SAMPLE TYPE

M/Z 191

M/Z 177

23/3

24/3

25/3

24/4

26/3

27Ts

27Tm

2Qap

29cr/?

29Ts

30d

290a

Oleanane 30 O

30cr£

30/?cr

30G

31cr£S

31cr£R

32a/?S + 32a/?R

33cr/?S + 33a/?R

34a/?S + 34a/?R

35cr0S + 35cr/?R

25 nor 30 ap

25 nor 28cr/7

25 nor 30a/7

9365-01 7A

2280m

Cuttings

827

474

455

293

371

611

535

460

1328

536

176

584

0

2367

352

60

532

1084

201 /185

135 /80

46 /24

0 /0

0

231

0

9365-022A

2310m

Cuttings

1100

656

854

528

643

967

1093

667

2219

913

293

1544

0

4293

1084

331

1081

3144

427 /677

343 /332

143 /215

113 /231

0

467

0

9365-035A

2380m

Cuttings

1924

889

939

894

1055

992

1298

458

2995

1 4 1 4

263

1971

0

5099

1205

320

1027

3749

298 /468

150 /225

73 /105

0 /0

0

338

0

9365-069A

2786m

Cuttings

1022

504

634

1179

464

688

6278

508

7472

469

310

4219

0

9423

5041

0

6398

4892

126071286

238 /341

84 /106

0 /0

202

233

106

9365-070A

2789m

Cuttings

2152

1206

1315

1986

1052

968

12235

948

13469

702

600

8145

0

16405

8499

0

10747

8387

2196/2343

566 /683

176 /199

0 /0

598

513

265

TABLE 17

BIOMARKER ABUNDANCES (PEAK AREAS) - MONOAROMATIC STERANES (M/Z 253)


DEPTH

SAMPLE TYPE

PEAK A1

B1

C1

D1

E1

F1

G1

H1

1 1

9365-01 7A

2280m

Cuttings

800

286

184

549

1676

268

1508

1758

32

9365-022A

2310m

Cuttings

740

281

338

893

2440

325

3035

2727

76

9365-035A

2380m

Cuttings

872

351

430

1175

3588

486

4043

3992

96

9365-069A

2786m

Cuttings

447

258

321

478

886

282

1820

1763

242

9365-070A

2789m

Cuttings

187

133

159

222

442

145

880

810

41

TABLE 18

BIOMARKER ABUNDANCES (PEAK AREAS) - TRIAROMATIC STERANES (M/Z 231)


DEPTH

SAMPLE TYPE

PEAK a1

b1

c1

d1

e1

f1

91

9365-01 7A

2280m

Cuttings

175

282

228

888

647

674

596

9365-022A

2310m

Cuttings

281

369

180

686

300

308

204

9365-035A

2380m

Cuttings

151

367

107

472

166

207

126

9365-059A

2786m

Cuttings

586

378

508

1445

1077

656

889

9365-070A

2789m

Cuttings

356

223

282

802

418

318

254

TABLE 19

BIOMARKER ABUNDANCES - AROMATICS (PEAK AREAS)


DEPTH

SAMPLE TYPE

M/Z 178M/Z 192

P

3

2

9

1

9365-017

2280m

Cuttings

12649

4705

7311

8692

6531

9365-022

2310m

Cuttings

9631

4471

6824

9595

7800

9365-035

2380m

Cuttings

13702

5642

8641

14337

7802

9365-069A

2786m

Cuttings

3955

2377

2681

4938

4053

9365-070A

2789m

Cuttings

8204

3118

3487

5643

4695

TABLE 20

BIOMARKER MOLECULAR RATIOS

GEOCHEM SAMPLE NUMBER

DEPTH

M/Z

191

191

178192

178192

217

217

191

191

191

191

191

191

218

191217

PEAKS

27 Tm/27 Ts

31 *S/(31*S + 31*R)

MPI 1

MPI 2

29oaaS/29aaaR

2900 /(29aa+ 2900)

29a0/30o0

28a0/30a0

hH/(27Ts,27Tm,29a/?,30a0)

Tricyclic Terpanes/(27Ts,27Tm, 29a0, 30a0)

24/4:23/3

35aø/34aØ

2700:2300.2900

(27Ts,27Tm ,29aff,30aff)27a0S-*3QaaR

9365-01 7A

2280m

9365-022A

2310m

9365-035A

2380m

9365-069A

2786m

9365-070A

2789m

IDENTITY

C31hH-S/R

MP Index

MP Index

C29 aa St

CMSt

NorH

Bisnorh

hH/H

Tricyclics

C24/C23

35/34 h H

øø St

H/St

0.88

0.33

0.65

0.79

0.73

0.52

0.56

0.19

0.47

0.50

0.35

0.00

37:30:33

0.92

1 .13

0.26

0.63

0.76

0.54

0.55

0.52

0.16

0.78

0.44

0.48

0.96

36:30:34

0.84

1.31

0.22

0.60

0.72

0.17

0.50

0.59

0.09

0.59

0.55

0.46

0.00

33:37:29

0.83

9.13

0.57

0.59

0.62

0.33

0.43

0.79

0.05

0.61

0.16

1 . 1 5

0.00

42:21:37

4.06

12.64

0.56

0.53

0.56

0.33

0.44

0.82

0.06

0.59

0.18

0.92

0.00

40:26:34

3.75

h H = Homohopanes H = Hopanes M = methyl

Institutt for energiteknikk

ADDRESSTELEPHONETELEXTELEFAX

REPORTTYPE

SUMMARY

KJELLER HALDENBox 40, N-2007 Kjeller, Norway N.1751 Ha|den N

+4763806000 +476918310076361isotpn 76335energn+4763815553

REPORT NO.

IFE/KR/F-94/154REPORT TITLE

VITRINITE REFLECTANCE WELL 34/4-8OFFSHORE NORWAY

CLIENTSaga Petroleum a. s

CLIENT REF.Nigel Mills

;; ; ;. £^V if - V of -f0 8 MARS 1995

MMfe ^^M ^^^ • . h. ^^^M _^ r mrm ^^ m d^lf*t^ f* infc*V<'IcImUleO I oliCri 3

OLJEDIREKTORATET

KEYWORDS

NAME

PREPARED BY Kristine Aasgaard

REVIEWED BY Torbjørn Throndsen

APPROVED BY Arne Råheim

DATE

1994-11-07

1994-11-07 i

1994-11-07

AVAILABILITY

PrivateConfidential

DATE

1994-11-07

DATE OF LAST REV.

REV. NO.

NUMBER OF PAGES

NUMBER OF ISSUES14

DISTRIBUTION

Saga Petroleum a. s (10)Throndsen, T.Aasgaard, K.File (2)

SIGNATURE

s^^'^~ S />Æ^ZsS&Lt. sv* t^i^^^-^i-^f/

/ /

"* e - i? : ^Ttt tu, 1 1 U& (D -'VK^ ' (**-£. K ' —

1 Introduction

This report gives the result of routine vitrinite reflectance analyses on 24 samplescovering the interval from 510 to 3101 mRKB in well 34/4-8 offshore Norway.

2 Material2.1 Samples

The material was provided from the client as 24 unwashed cuttings samples. The samplepositions are indicated in figure 1.

2.2 Geological information and casing points

Information on the stratigraphy and casing points was not supplied from the client

3 Analytical techniques3.1 Preparation

The cuttings samples were treated with hydrochloric and hydrofluoric acid prior to furtherpreparation. The aim was to avoid soft and expanding mineral phases in order to ensuregood polishing quality.

The sample material resulting from the acid treatment was embedded in an epoxy resin tomake briquettes, ground flat and polished using 0.25 micron diamond paste andmagnesium oxide as the two final steps.

3.2 Analysis

The analytical equipment being used was a Zeiss MPM 03 photometer microscopeequipped with an Epiplan-Neofluar 40/0.90 oil objective. The sensitive measuring spotwas kept constant for all measurements at about 2.5 micron in diameter. Themeasurements were made through a green band pass filter (546 nm) and in oil immersion(refractive index 1.515 at 18°C). The readings were made without a polarizer and using astationary stage. This procedure is called measurement of random reflectance (%Rm).The photometer is calibrated daily against a standard of known reflectance (%Rm=0.588) and routinely (daily) checked against two other standards of significant differentreflectances ( %Rm=0.879 and 1.696). A deviation from these values of less than ±0.01and ±0.02 respectively is considered as acceptable. The calibration is routinely checkedduring the course of measurements at least every hour, and a deviation of less than±0.005 is considered as acceptable.

For each sample at least 20 points were measured if possible, and quality ratings aregiven to various important aspects which may affect the measurements. The aspects areabundance of vitrinite, uncertainties in the identification of indigenous vitrinite, type ofvitrinite, particle size, particle surface quality and abundance of pyrite.

Table 1 Vitrinite reflectance data We!l

34/4-8IFEno. Depth, mRKB Sample type Lithology %Rm Std.dev. N Quality Preparation

S A 1 3 1 2S A 1 3 1 3S A 1 3 1 4S A 1 3 1 5S A 1 3 1 6S A 1 3 1 7S A 1 3 1 8S A 1 3 1 9S A 1320

SA 1321

SA 1322S A 1323SA 1324S A 1325SA 1326SA 1327S A 1328

SA 1329SA 1330SA 1331SA 1332SA 1333SA 1334SA 1335

510

600

700

800900

1000

110012001 3 1 0

140015001600

1700

1800

1900

2000

2100

2195

2510

2600

2700

290029993101

cut

cutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcutcut

clstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclstclst

0.220.190.26

0.280.250.290.310.310.380.420.400.420.470.450.570.610.54

0.49

0.03

0.01

0.05

0.04

0.04

0.04

0.04

0.03

0.06

0.07

0.04

0.03

0.06

0.03

0.08

0.07

0.07

0.00

13

3

6

222214

221 128232120281227251 1

1

barrenbarrenbarren

MMM

barrenMMMMMPPMMMPPMM

barrenP

barren

HFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHFHF

G

M

Good quality

Moderate quality

P

X

Poor quality

Not vitrinite

A

Barren

Mud additive

Barren of vitrinite

HF

Bulk

HF-treated

Bulk rock

Table 2 Interpreted vitrinite reflectance versus depth trend

Well 34/4-8 Depth, mRKB %Rm-trendSea bed40050060070080090010001100120013001400150016001700180019002000210022002300240025002600270028002900300031003200330034003500360037003800390040004100420043004400450046004700480049005000

0.200.210.220.230.250.260.280.290.310.330.350.380.400.430.450.470.490.520.540.560.590.61

saga pswleum a.s mud properties, - · pdf file2911.0 3048.0 3110.0 mud weight 1.12 1.06 1.12...

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