JUL 0 3 1986

1-y Refer l « r

Sohio Petroleum Company Attention* Hr. Cary "ft*. Kerlin Pos' f tee Bex .,1468 U f l ) :t«. Louisiana 70505

Gentleeeni

Rsference 1s made to your Ini t ia l Plan of Exploration received Juno 19* 1986, for Loase OCS-G 8210, Block 607, East Breaks Area. This plan includes the Wt1v1t1©& proposed for Wells A* 8* end C.

I r accordance e i ta 30 CFR 250.34, revised Derenbor 13, 1979, and our letter data* January 29, 1999, this plan has seen determined to be complete as ef July 3, 1966, and 1s nov being considered for approval.

Your i lea control fleeter Is N~2*92 and snould be referenced m your cee£un1cftt1on and correspondence concerning this plan.

Sincerely yours*

ADGobsrtigcw!7/L/06 Disk la

bcci / Lease OCS-G 0210 (OPS-3-2) (FILE ROOM) I OPM- l g/publ lclnfo. Copy of tbe plan (PUBL.REC.)

D0-3 "

(Orig. Sgd.) A. Donald Giroir

A. Donald Giroir Deputy Regional Supervisor RuW and Production •

SOHIO PETROLEUM COMPANY LAFAVfTTf LOUISIANA 70608

PO BOX SI40S

OU Cf STATION

June 18, 1986

Mr. D. W. Solanas Regional Supervisor

PUBLIC RATION

Offshore Operations Support U.S. Department of the Interior Minerals Management Service P. 0. Box 7944 Metairie, LA 70010-7944

Dear Mr. Solanas:

Please find enclosed five (5) Confidential and six (6) Public Information copies of the Plan of Exploration (POE) for the above referenced project. Accompanying this POE are one (1) set of processed seismic line data offset­ting each well location. Two (2) copies of the Hazard Study by John Chance & Associates, Inc. for East Breaks Blocks 563, 564 and 607 have been submitted wU> the POE for East Breaks Block 563.

If you have questions or require additional Information, please call me at (318) 989-4200.

Re: Plan of Exploration East Breaks Block 607 OCS-G-8210. Wells A, B & C Offshore Texas

Sincerely,

Cary W. Kerlin Regulatory Supervisor Lafayette District

SFB/brg Attachments

c: Mr. W. D. Harris

HAN OF EXPLORATION

OCS-G-8210

EAST BREAKS BLOCK 607

OFFSHORE TEXAS

I t

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LIST OF ATTACHMENTS

A. Description of Drilling Rig

6. Letters from Sohio Petroleum Company's Regional Geophysidst

C. Vicinity & Well Location Plats

D. Geologic Cross Section & Structure Maps

E. Drilling Mud Components

F. Projected A1r Emissions Schedule

G. Magnetometer and Sidr-Scan Sonar Waiver

SOHIO PETROLEUM COMPANY EAST BREAKS BLOCK 607

' OCS-G-8210 f OFFSHORE TEXAS

| J Pursuant! to the requirements of 30 CFR 250.23.1 , Soh*o Petroleum Company sub­

m i t s the f o l l ow ing Plan of Exp lora t ion (POE) f o r East Breaks Block 607.

(1) EXPLORATION ACTIVITY

The proposed exp lo ra t i on a c t i v i t y fo r East Breaks Block 607 cons is ts of d r i l ­

l i n g Wells "A, B & C" fron; three (3) d i f f e r e n t l o ca t i ons . A l l three locat ions

w i l l be d r i l l e d as s t r a i g h t ho les. The estimated t ime to d r i l l these three (3)

exp lo ra to ry w e l l s i s about f i v e hundred ninety f i v e (595) days, w i t h a January

1 , 1988 an t i c i pa ted spudding date f o r the "A" l o c a t i o n .

(11) PROPOSED DRILLING RIG

Sohio present ly does not have a r i g under cont rac t f o r l oca t i on "A, B or C";

however, these w e l l s w i l l be d r i l l e d w i th a d r i l l i n g u n i t , s i m i l a r to the "Ben

Ocean Lancer" owned by Ben Odeco L im i ted . This r i g i s capable of d r i l l i n g i n

w a t e r depths of 4000*. The r i g ' s s p e c i f i c a t i o n s , bOP and D iver te r systems are

shown In Attachment A. S l i gh t mod i f i ca t ions can be made to the r i g In order to

handle the "C" l o c a t i o n , which Is 150* deeper than the r i g ' s l i s t e d maximum

opera t iona l water depth of 4000*.

M H ) GEOPHYSICAL WORK

A l l of the geophysical work preparatory to i n i t i a t i o n of exp lo ra to ry opera­

t i o n s has been completed. A v e l o c i t y survey may be run on these we l l s when

t o t a l depth has been reached. No o ther geophysical work Is planned unless data

ob ta ined from d r i l l i n g operat ions necessi tates a d d i t i o n a l d e f i n i t i o n d e t a i l from

convent ional r e f l e c t i o n seismic methods.

Magnetometer and side-scan sonar requirements f o r the shal low hazard surveys

were waivered f o r t h i s block as shown in Attachment G.

Plan of Exploration East Breaks Block 607 Page 2

Two (2) oodles of the shallow hazard report entitled, "Hazard Study Blocks

563, 564 4 60/, East Breaks Area", prepared by John Chance & Associates, Inc.

have been submitted with the PCE for East Breaks Block 563.

The East Breaks Hazard Study tas been reviewed by Mr. Jack Golcien, Sohio's

Regional Geophysicist. Letters from Mr. Golden in which he agrees with John

Chance's conclusions and addresses shallow hazards at each well site, are inclu­

ded as Attachment B.

(1v) VICINITY AND LOCATION HAPS

Attachment C-l is a vicinity map depicting the subject tract's position rela­

tive to the Texas shoreline. No new onshore fa c i l i t i e s w i l l be required for

dril l i n g these proposed exploratory wells. Existing service company facilities

1n the Sabine Pass Area have sufficient capacity to accommodate this project

without modification or expansion.

Attachment C-2 shows the proposed surface locations for Wells "A, B a C".

The total depth, water depth and surface locations for each of these wells Is as

follows:

Well "A" TD: 12,000' Water Depth: 3,180' Surface Location: 4,800' FNL

5.300' FEL

Well "B" TD: 13,700' Water Depth: 3,160' Surface Locat ion: 5,050' FNL

1,450' FEL

J

11,800' 4,150' 10,500' FNL 11,850' FEL

(v) STRUCTURE MAPS AND CROSS SECTIONS

Structure maps and cross-sections are included in the five (5) confidential

copies of this Plan as Attachment D. Depths s.'own on cross-sections and struc­

ture maps are sub-sea measurements.

(vi) OTHER RELEVANT DATA

(A) Oil Spill Contingency Plan

Sohio Petroleum Company is a member of Clean Gulf Associates (CGA) and

would uti l i z e that organization's equipment to clean up an o i l s p i l l .

The closest CGA bases are at Galveston, Texas City, Texas and Cameron,

Louisiana, respectively. Response times for CGA Fast Response Units from

these three (3) locations would be 15, 16 and 19 hours, respectively.

Manpower to operate the CGA's equipment would be provided by Peterson

Maritime Services, Int., whose personnel are trained for o i l spill clean­

up operations. Sohlo's supervisory personnel would direct the clean-up

operations until successfully completed. Additional details can be found

1n Sohlo's 1985 011 Spill Contingency Plan, which has been approved by

the Minerals Management Service.

(B) List of Mud Components

Attachment E Is a l i s t of the proposed d r i l l i n g mud components and addi­

tives, including the common and chemical trade name of each additive.

Plan of Exploration East Breaks Block 607 ?age 3 \

Well "C TD: Water Depth: Surface Location

Plan of Exploration East Breaks Block 607 Page\4

i i

(C) Gaseous Emissions

Exploratory, d r i l l i n g operat ions w i l l be conducted from the surface s i tes

described in sect ion ( i v ) using the mobile d r i l l i n g un i t described in

Section ( i i ) . Operations w i l l be of a maximum durat ion of f i v e hundred

ninety f i v e (595) days.

At the d r i l l s i t e , gaseous emissions w i l l be generated by the r i g en­

gines, the at tendant work boat , stand-by boat, crew boat, and he l i cop te r ,

and the product ion t es t i ng of possible prospect ive rese rvo i r s . Gaseous

emissions a t the dock s i t e i n Sabine Pass, Texas, w i l l be generated by

the work boa t , crew boat and he l i cop te r . Onshore staging f o r t h i s opera­

t ion w i l l be from e x i s t i n g f a c i l i t i e s , so there w i l l be no s i g n i f i c a n t

increase i n emissions f o r t h i s a c t i v i t y . Projected emissions from th i s

a c t i v i t y have been ca lcu la ted and are presented In the Projected A i r

Emissions Schedule as Attachment F.

(D) Coastal Zone Management (CZM) Consistency C e r t i f i c a t i o n

A Coastal Zone Management Consistency C e r t i f i c a t i o n f o r a c t i v i t i e s des

cribed in t h i s plan 1s not requ i red .

BEN OCEM LANCER

GENERAL DESCRIPTION AND EQUIPMENT LIST

11/84

GENERAL DESCRIPTION

Owners: w*

Regi stry:

Class i f i ca t i on :

Cer t i f i ca tes :

Ben Odeco Limited 17 Grosvenor H i l l London WTX 9HG England

U. K. Flag/Lei th, Scotland O f f i c i a l No. 366477 Signal Let ters : GUUU

Lloyd's Register, Maltese Cross 100A1, Ice Class 2, L.M.C. U.M.S.

The Ben Ocean Lancer complies with the ce r t i f y i ng requirements of the U.K. Department of Transport, U.K. Factories Act (regarding safe workinn conditions of machinery) and SOLAS/KODU Codes including the IMO Internat ional Oi l Pol lut ion and Prevention Regulations.

PRINCIPAL CHARACTERISTICS ANO DIMENSIONS

Length-

Breadth:

Depth:

Design Draf t (a l l seasons):

Gross Tonnage:

Load Displacement:

Net Tonnage:

Deadweight:

141.37 m./463.80 f t

23.50 m./ 77.10 f t

11.78 m./ 38.65 f t

8.03 m./ 26.03 f t

10,823.22 tons

17,793 tons

5,289.82 tons

9,193 tons

Nominal minimum/maximum Operating water depth capab i l i t y : 400 f t / 4,000 f t

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ATTACHMENT A

CAPACITIES:

Bal last Water: Potable Water;. Active Mud: Reserve Mud: Bulk Mud: Bulk Cement: Sack Storage:

Fuel 011 : Dri l l /Domestic Water:

2,160 m. tons/16,500 bbls 675 m. tons/ 4,250 bbls

(1,950 m. tons of d r i l l water can also be stored in bal last system)

4,010 m. tons/25,200 bbls 246 m. tons/ 1,549 bbls

153.7 cu. metres/ 967 bbls 232.77 cu. metres/1,464 bbls

9,900 cu. f t 9,900 cu. f t 6,000 sacks

QUARTERS: Quarters area to accommodate 98 men.

HELIPORT: Hel iport designed to accommodate Skior-s!:y S-61 hel icopter.

PRILLING EQUIPMENT

1. One (1) Pyramid dynamic derrick 44' x 36' x 160' with double V-doors. Derrick is rated for 1,000,000 lbs. s ta t i c hook load capa-

2. One (1) Pyramid 500-ton capacity crown block assembly with seven (7) 60" sheaves grooved for 1-3/8" d r i l l l i ne complete with 9/16" sandi ine sheave and 1-1/4" catHne sheave.

3. One (1) Koomey Model TCB Crown-o-matic.

4. One (1) NL Shaffer d r i l l s t r ing motion compensator rated at 400,000 lbs . w i th a 18-foot stroke.

5. One (1) Gardner-Denver Model 55-T-660 t rave l ing block, 550-ton capacity with six (6) 60" sheaves grooved fo r 1-3/8" wire.

6. One (1) Byron Jackson Model 5500 dynaplex hook, 500 ton capacity.

7. One National Model P-650 650 ton capacity d r i l l i n g swivel with 6-5/8" API Reg. LH box down.

8. One (1) International Model A63-2 k e l l y spinner with 6-5/8" API heg. connections.

9. One (1) Oilwell A 49-1/2" rotary driven by one (1) 800 hp LSE DC motor. Rotary equipped wi th Varco hinged pin drive master bushings complete with extended API insert bowl No. 3, l i f t i n g s l ing and b i t breaker adapter.

c i t y .

I

10. One (1) OH wel l Model RT-2010-D two speed rotary table transmis­sion.

11 . One (1) ro tary table support s t ructure.

... • 12. One (1) Gardner-Denver Model 30C0-E'electric drawworks with a drum

grooved fo r and including 1-3/8" wire and a coring reel sized for and including 20,000' of 9/16", wire, a l l driven by two (2) 800 hp LSE DC motors.

13. One (1) Baylor Elmagco Model PWM-CL 7838 Eddy current brake.

14. One (1) Byron Jackson 3-arm p^oe racking system with block re t ract .

15. One (1) adjustable casing stabbing board. 16. One (1) BJ Hughes Spintcrc hydraulic u r i l l pipe spinner and torque

wn. ich. 17. One (1) Mathey wire*<ne measuring device with 15,000' of 0,0°?

wire. 18. One (1) National Type E-3 deadline anchor. 19. D r i l l f loor instrumentation consisting of:

a) Martin Dedcer Type "E" weight ind icator . b) Martin Decker pump pressure gauge. c) Martin Decker tong torque ir.Jicator. d) Martin Decker rotary table rpm. e) Martin Decker rotary table amp meter. f ) Martin Decker pump stroke tachometer. g) Martin Decker 5-channel recorder. h) A-l R1g Services p i t volume to ta l i ze r and gain/loss indicator (motion compensated) wi th monitoring consoles located on d r i l l f loor and In toolpusher's o f f i c e . Both stat ions equipped with chart »*ecorder giving 7 hour view of to ta l volume and f low. Flow sensors 1n flow l i ne and at shale shaker. Dual p i t vol'me sensors in each active mud p i t .

C. SUBSEA ANO WELL COHTROL EQUIPMENT

1 . Two (2) 16-3/4" 10,000 ps1 Cameron BOP stacks ( l -act1ve/ l-standby, each consisting of :

a) One (1) hydraulic CIW c o l l e t connector, 16-3/A" 10,000 psi WP. b) One (1) guidance funnel . c) Two (2) Cameron double ram type U preventers with two (2) 3"

out lets below each ram. Ram bodies f i t t e d from cop to bottom as fo l lows:

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Blind/shear ram (SBR) • 5" pipe ram

5" pipe ram 5" pipe ram

| | (Two (2) set^ of 3-1/2" pipe rams also available)

d) ' One (1) 5,000 psi Hyr1 • i 1 GL bag type preventer. e) On (1) 5*000 psi swivel/adaptor f i t t e d with mandrel for

mating BOP to LRP Collet connector. f ) Three (3) 3" 10,000 psi double cavity Type "OF" fa i l sa fe

valves. g) One (1) k i l l l ine spool - k i l l l ine entry point below ram No.

4. h) One (1) choke l ine spool - choke l ine entry points below rams

No. 1 and No. 3. i ) One (1) hydraulic receiver plate for use with guide1ineless

system. j ) One (1) acoustic control package (four function) c ip le te with

accumulators, k) One (1) frame for stack. 1) Or.e (1) 16-3/4" BOP stack test stump.

2. Two (2) 16-3/4" CIW lower marine r iser packages (1-act ive/ 1-standby) each consist ing of:

a) One (1) hydraulic CIW co l l e t connector. b) One (1) guidance tunnel. c) One (1) 5,000 ps1 Hydril GL bag type preventer (for primary

uni t on ly ) . d) One (1) 10° ba l l j o i n t . e) One (1) hydraul ic face plate with two (2) Payne multiplex

electro-hydraul ic pods. f ) Two (2) 3" f l ex hoses for k i l l and choke l ines. g) One (1) frame for r i ser package. h) One (1) emergency BOP recovery system. 1) One (1) 16-3/4" LRP test stump.

3. One (1) 18-5/8" 00 Integral r i ser system with Cameron Style 'RD' connectors and consist ing of : (Total footage - 4,100 f t . plus s l i p j o i n t s )

a) Forty-six (46) 50' r iser j o i n t s with 5/8" wall of which (30) have Grade FG 36T steel tube and (16) have Grade X-65 steel tube.

b) Twenty-nine (29) 50' r i se r j o i n t s with 1/2" wa l l . c) One (1) 43.75' r i se r j o i n t with 5/8" wa l l . d) Two (2) 25' r i s e r j o i n t with 1/2" wa l l . e) Two (2) 37.5' r i se r j o i n t with 1/2" wal l . f ) Two (2) 43.75' r i se r j o i n t with 1/2" wa l l . g) Two (2) 46.8' r i se r j o i n t wi th 1/2" wa l l . h) Two (2) 55' stroke telescoping j o in t s complete with tensioner

clamp, integral k i l l and choke l ines, and hydraulic conduit supply l ine complete with terminating goosenecks.

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i ) One (1) lo t buoyancy modules for 18-5/8" r i se r manufactured by Emerson & Cummlngs to provide 95X buoyancy, service rated for 3,000' - 4,000' water depth.

J) One (1) set B0P/r1ser running and handling tools complete with spider and t r o l l e y .

Two (2) sets Cameron wellhead running and test ing tools - weight se t / r igh t whand release - 3 hanger system. Each set consistina of :

a) One (1) J -s lo t temporary d r i l l i n g template running too l . b) One (1) 30" conductor housing hydraul ical ly operated running

too l . c) One (1) 16-3/4" wellhead housing hydraul ical ly operated

d) One (1) wear bushing running tool with 4-1/2" IF box by 4-1/2" IF box connections.

e) One (1) d r i l l pipe hang-off t oo l . f ) One (1) 16-3/4" - 10M weight set test t o o l . g) One (1) 16-3/4" - 10M BOP plug test tool - lands in 16-3/4"

housing; 13-3/8" seal assy; 9-5/8" seal assy; and 7" seal assy.

h) One (1) casing hanger running tool for 13-3/8"; 9-5/8"; and •» H

/ . i ) One (1) seal assembly running/testing tool for 13-3/8";

9-5/8" ; and 7".

One (1) set Vetco wellhead running and handlira tools as fol lows:

a) Running Tool - 30" wellhead housing: Cam-actuated tool with 6-5/8" reg. box up x 6-5/8" reg. box down.

b) Running Tool - 16-3/4" wellhead housing: cam-actuated tool with 6-5/8" reg. box up x 6-5/8" reg. box down.

c) Running and re t r iev ing tool - 16-3/4" seat protector and wear bushing: 4-1/2" I r ; box up and down.

d) Running Tool - Type S6-5 16-3/4" casing hanger: direct dr ive tool for a l l torque type 16-3/4" SG-5 casing hangers. 4-1/2" API IF box up x 4-1/2" non-upset 8rd tubing box down. In­cludes thread protector.

e) Test Tool - 16-3/4" Type SG-5 casing hanger/wellhead housing: 4-1/2" API IF box up and box down. Includes seal protector.

Mult iplex electro-hydraul1c BOP control system consisting of:

a) One (1) power skid containing 630 gal lon 3,000 ps1 accumulator capacity, two (2) 30 hp e lec t r i c pumps, two (2) 50:1 ra t io a i r driven pumps, 400 gal lon f l u i d reservoir , 100 gallon soluble o i l reservoir with automatic metering and alarm system.

b) One (1) d r i l l f l oo r and remote panels with controls for opera­t ion of:

One (1) r i se r connector. Two (2) annular preventers.

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Four (4) rams with wedge locks. One (1) BOP connector. Four (4) k i l l and choke valves. One (1) selector valve for blue/yellow pods.

c) One (1) CIW Payne mult iplex control system having two (2) pow­ered c iv le reels each with e lec t r i c control cable for rated

*• water depth. 1

d) One (1) spool of 1/2" auxi l iary hydraulic hose for rated water depth.

7. One (1) Regan KFDS diver ter for 49-1/2" rotary complete with 12" 10 d ive r te r l ines and FMC Corp. Model SGLB 15 (275 psi WP) remote actuated valves.

8. Six (6) Denny-Brown 100,000 lb . r iser tensioner units each with 45' wi re l i ne t rave l .

9. One (1) Sub Sea Systems TV used inside marine r i ser fo r reentry operations of BOP/LRP.

10. One (1) Sub Sea Systems external TV system with spare camera.

DRILL STRING AND HANDLING TOOLS

1. D r i l l pipe consisting o f :

a) 10,000' of 5", 19.50 PPF, Range 2, Grade E, IEU d r i l l pipe w i th 6-3/8" 00 x 3-3/4" ID 18° tapered shouldered, 5" X-hole too l j o in ts with f lush f ine par t i c le hardbandlng.

b) 5,000' of 5 " , 19.50 PPF, Range 2, Grade 105, IEU d r i l l pipe wi th 5-3/8" OD x 3-1/2" ID 18° tapered shoulders, 5" X-hole too l j o i n t s .

c) 30 j o i n t s of 5" 51.67 PPF, Range 2, heavy weight d r i l l pipe, 6- 1/2" OD x 3" ID, 18° tapered shoulders with 4-1/2" API IF connections.

d) One (1) each 5 ' , 1 0 ' , 15' and 20' lengths 5" pup jo in t s mil led from d r i l l co l l a r stock with 6-3/8" OD x 3-1/2" ID, 5" X-hole t oo l j o i n t s .

e, 3,500' of 3-1 /2" , 13.30 PPF, Range 2, Grade E, IEU d r i l l pipe w i th 4-3/4" OD x 2-11/16" ID 18° tapered shouldered, 3-1/2" IF too l j o in t s with f lush f ine par t i c le hardbanding.

2. D r i l l co l la rs consist ing o f :

a) Nine (9) 9-1/2" OD x 3-1/2" ID x 31 ' long, d r i l l co l lars with 7- 5/8" API Reg. connections.

b) T h i r t y (30) 8" OD x 3" ID x 31 ' long d r i l l co l lars with 6-5/8" API Reg. connections.

I

c) Twenty-four (24) 6-1/2- 00 x 2-3/4" 10 x 31 ' long spiral d r i l l co l lars wi th 4-1/2" IF connections.

d) Fi f teen (15) 4-3/4" OD x 2-1/4" ID x 31 ' long spiral d r i l l co l lars wi th 3-1/2" IF connections.

* 3. D r i l l cd l lar 11ft nipples consist ing o f : '

a) Four (4) 8" OD x 6-5/8" API ,regular pin d r i l l co l lar l i f t nipples.

b) Four (4) 6-1/2" OD x 4-1/2" i r pin d r i l l co l lar l i f t nipples. c) Three (3) 4-3/4" 00 x 3-1/2" IF pin d r i l l co l la r h * t nipples.

One (1) lot of cross-over and b i t subs for Contractor furnished equipment including:

a) Four (4) 8" 00 x 3" ID b i t subs bored for f loa t 6-5/8" API Reg. connections.

b) Two (2) 8" OD x 3" ID double pin subs with 6-5/8" API Reg. connections.

c) Four (4) 6-1/2" OD x 2-3/4" ID b i t subs with 4-1/2" IF box up, and 4-1/2" API Reg. oox down, bored fo r f l o a t .

d) Four (4) 6-5/8" API Reg. pin x 4-1/2" IF box X-over subs. e) Five (5) saver subs for 5-1/4" hex ke l l y , 6-3/8" OD x 3" ID

with 4-1/2" IF double p in . f ) Two (2) 8" 00 x 3" ID subs wi th 6-5/8" API Reg. box x 4-1/2"

IF p in . g) One (1) 4-1/2" x 4-1/2" IF double pin subs. h) Three (3) 4-3/4^ OD x 2-1/4" ID b i t subs with 3-1/2" API Reg.

box down x 3-1/2" IF box up, bored fo r f l o a t . 1) Two (2) 4-1 /2" IF box x 3-1/2" IF pin crossover subs, j ) One (1) 7-5/8" API Reg. pin x 6-5/8" API Reg. box sub. k) Two (2) 7-5/8" API Reg. box x 6-5/8" API Reg. box b i t sub

bored fo r f l o a t , 10" OD x 8" OD.

5. Two (2) square ke l lys 6" across f l a t s x 3" ID x 54' long with 6-5/8" API Reg. 7-3/4" 00 l e f t hand box on top and a 4-1/2" IF 6-3/8" 00 r i gh t hand box on bottom.

6. One (1) tes t sub f o r the ke l ly and ke l l y cocks.

7. One (1) c i rcu la t ing head 5.000 psi WP with 5" XH pin down and connection for hose (Chiksan).

8. Two (2) Hydril upper ke l l y cock 7-3/4" OD x 2-1/2" ID x 10,000 psi WP wi th 6-5/8" API Reg. l e f t hand pin and box connections.

9. Two (2) Hydri l lower ke l l y cock 7-1/2" OD x 2-1/2" ID x 10,000 psi WP with 4-1/2" IF pin and box connections.

10. One (1) Hydril lower ke l l y cock 5-1/8" OD x 1-3/4" ID x 10,000 psi WP wi th 3-1/2" API IF connections.

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• I

11. Two (2) Gray inside BOP 6-3/4" OD with 4-1/2" IF pin and box connections.

12. One.( l ) Gray inside BOP with 3-1/2" API 1 / connections.

13. One (1) each Hydril drop-in check valve for 5" and 3-1/2" d r i l l pipewcomplete with check valve and landing sub.

14. Two (2) TIW safety j o i n t s 6-3/8" OD x 3-1/2" ID with 4-1/2" IF pin and box connections.

15. Bumper subs consisting of :

a) Two (2) d r i l l i n g bumper subs 9-1/2" OD. b) Three (3) Baash-Ross type 6SI-PM bumper suts 8" 00 x 3" ID x

60" stroke with 6-5/8" API Reg. connections. c) Three (3) Baash-Ross type 6SI-PM bumper subs 6-1/2" 00 x 2" 10

x 60" stroke wi th 4-1/2" API IF connections.

Note: Servicing and repair of a l l Simper subs for Operator's account.

16. Hole openers and reamers consisting of :

a) One (1) Security 36" ho'e oener body, j e t type with 6-5/8" API Reg. box down and pin up and 20" OD body.

b) One (1) Security 26" hole opener body, regular c i rcu la t ion type with 6-5/8" API Reg. box down and pin up and 6-3/4" OD body.

c/ Two (2) Dr l lco Model 60 three point s t r ing reamer bodies for 12-1/4" hole wi th 6-5/8" API Reg. connections.

d) Two (2) Dr i lco Model 60 three point s t r ing reamer bodies for 8-1/2" hole w i th 4-1/2" API IF connections.

e) One (1) three point b i t reamer body fo r 12-1/4" hole with 6-5/8" API Reg. connections.

f ) One (1) three point b i t reamer body fo r 8-1/2" hole with 4-1/2" API Reg. connections.

g) Two {?.) 18-1/2" A-Z under-reamer Model U13M for 12-1/4" p i l o t hole.

Note: Cutter 's and cutter arms furnished by Operator.

17. S tab i l i zers consist ing of :

a) Eight (8) blade s tab i l i zers 8" OD x 6-5/8" API Reg. connec­t ions with 7-1/2" mandrel for 12-1/4" hole.

b) Eight (8) blade s tab i l i zers 6-1/2" OD x < - l / 2 " API IF connec­t ions with 5-1/2" mandrel for 8-1/2" hole.

c) One (1) near b i t s tab i l i ze r , sleeve type ffor 12-1/4" hole, 8" OD body with 6-5/8" API reg. connections, nored for f l o a t .

d) One (1) near b i t s tab i l i ze r , sleeve typt for 8-1/2" hole, 6-1/2" 00 body wi th 4-1/2" API reg. box x 4-1/2" API IF box, bored for f l o a t .

- 8 -

I /

Note: Repair, redressing and inspection of a l l hole openers, reamers, and s tab i l i ze rs for Operator's account.

16. Core barrels consist ing of:

I j a) One ( l ) Chrlstensen Marine core ba r re l , .6 -1 /4 " 00 x 3" ID x I 60' long, wi th 4-1/2" API IF connection's.

b) One K<1) Christensen Marine type, core ba r re l , 4-1/2" 00 x 2-1/8" ID x 60' long with 3-1/2" API reg. box connection.

Note: Core b i t s and repair and inspection of core barrels for Operator's account.

19. Necessary 5" x 7-1/4" snap-on d r i l l pipe rubbers for Contractor's d r i l l pipe in surface casing.

20. Four (4) Wooley ro tary tongs for d r i l l pipe.

21. Two (2) Web Wilson rotary tongs for d r i l l co l l a r s .

22. One (1) d r i l l pipe spinning wrench for 5" d r i l l p ipe.

23. One (1) lo i manual elevators for Contractor's d r i l l pipe and d r i l l c o l l a r s .

24. One (1) lot a i r operated center latch elevators for 5" and 3-1/2" d r i l l pipe.

25. One (1) lot a i r operated center latch elevators for 8 " , 6-1/2" and 4-3 /4" d r i l l co l l a rs .

26. One (1) lot manual operated side door elevator for 9-1/2" d r i l l c o l l a r s .

27. One (1) lot s l ips for the Contractor's d r i l l pipe and d r i l l co l ­l a r s .

28. One (1) lot safety clamps for 9 -1 /2" , 8 " , 6-1/2" and 4-3/4" d r i l l co l l a r s .

29. One (1) set each of elevator l inks sizes 2-3/4" x 132" long and 3-1/2" x 144" long.

30. Two (2) Eastman 6° d r i f t indicators. One (1) Eastman 12° indica­t o r . (Non-d1rectiona1.)

31. B i t breakers for fol lowing standard three cone b i t s izes:

1 - 26" b i t breaker 1 - 18-1/2" b i t breaker 1 - 15" b i t breaker

-9-

I I

, 1 - 11-3/4- to 12-1/2" b i t breaker 1 - 8-3/8" to 9" b i t breaker

: 1 - 6 " to 6-1/4" b i t breaker | i 3 - Chrlstensen diamond b i t breakers' for 6-1/4'' shank b i t

32. Casing and tubing handling tools consisting of :

a) ' One (1) Lamb Model 20,000 power casing: tongs complete with heads for 20", 13-3/8", 9-5/8" , 7" casing and hydraulic power un i t .

b) One (1) BJ Hughes power tubing tongs with heads for 3-1/2" tubing.

c) Two (2) Web Wilson rotary tongs for 20" casing.

d) Three (3) each Byron Jackson 500-ton capacity s l i p elevator spiders with s l i p assemblies for 13-3/8", 9-5/8" and 7" casing.

e) Two (2) each manual operated side door elevators for 30" and 20" casing.

f ) One (1) each Byron Jackson single j o i n t elevators for 13-3/8", 9-5/8" and 7" casing.

g) One (1) set 20" casing s l ips to f i t 49-1/2" rotary.

h) Four (4) each Klampon thread protectors for 13-3/8", 9-5/8" and 7" casing.

E. FISHING TOOLS

1. One (1) each 11-3/4" , 9-5/8" , 8-1/8" and 5-3/4" 00 f u l l strength Series 150 Bowen overshots complete with necessary pack-offs, grap­ples and accessories to catch Contractor furnished d r i l l pipe and c o l l a r s .

2. One (1) each 11" and 7-7/8" Bowen reverse c i r cu la t ion junk basket wi th accessories.

3. One (1) each 10-1/2" 00 and 7" OD Bowen K & G f i sh ing magnet fo r use 1n 12-1/2" and 8-1/2" 00 hole sizes.

4. One (1) each 8" OD and 6-1/2" OD Bowen, Type "Z" or equivalent o i l j a r s with 6-5/8" API Reg. and 4-1/2" IF connections.

5. One (1) each boot basket for 12-1/4", 8-1/2" and 6" hole.

-10-

1.

2.

3.

4.

5.

6.

7.

8.

9.

One (1) each 8 M OO x 20" stroke and 6-1/2" OD x 20" stroke Bouen f i sh i ng bumper subs.

r

One (1) taper, tap wi th 4-1/2" IF box connection. One (1) taper tap I w i th 3-1/2* IF box connection.

Note: Repair and maintenance of Contractor's f ish ing tools for Operator's account.

AMD CEMENTING SYSTEM

Two (2) Gardner Denver Model PZ-ll-C t r ip lex rrud pumps each driven by two (2) 800 hp LSE DC motors.

Two (2) Hydril K-20 5,000 psi discharge dampeners for the mud pumps.

Two (2) Koomey suction dampeners for the mud pumps.

Three (3) Mission Magnum 6 x 8 centr i fugal pumps for mud mixing and mud transferr ing service, each pump driven by an LSE 100 hp AC motor.

Two (2) rotary hoses 3" x 75' x 5,000 psi WP ( test ra t ing of 10,000 p s i ) .

One (1) mud/gas separator, 36" OD x 12' t a l l with 10-3/4" discharge.

One (1) Swaco degasser.

One (1) Pioneer S3-12 desander serviced with a 6 x 8 Mission Magnum centr i fugal pump driven by a 100 hp LSE AC motor.

One (1) Pioneer T16-4 des i l te r serviced wi th a 6 x 8 Mission Magnum centr i fugal pump driven by a 100 hp LSE AC motor.

One (1) t r i p l e basket Hutchinson-Hayes high speed shale shaker. Each basket has two (2) t i e r screening systems each driven by a 3 hp AC motor.

Act ive mud p i ts with to ta l capacity of 153.7 cu. metres (967 bbls) consist ing of:

No. 1 - 16.89 cu. metres/106 bbls No. 2 - 21.91 cu. metres/138 bbls No. 3 - 56.00 cu. metres/352 bbls No. 4 - 58.90 cu. metres/371 bbls

-11-

12. Reserve mud p i ts with t o ta l capacity of 232.77 cu. metres (1,464

13. One (1) 20 barrel measuring t r i p tank.

14. One (1) set basic mud checking equipment consist ing of mud balance, f i l t e r press, f i l t r a t i o n equipment, and sand content equipment.

15. One (1) choke manifold 10,000 psi WP including two (2) Flocon Products, Inc. manual adjustable chokes and two (2) Cameron remote adjustable chokes.

16. Dual standpipes and standpipe manifold 5,000 psi WP.

17. One (1) cementing standpipe complete with separate cementing kel ly and Brown Oil Tool Type 2 Combination Plug Dropping Head and Swivel w i th Flag Sub. (Cementing pump down plugs to be furnished by Operator.)

18. Nine (9) Philadelphia mud p i t agi tators, each driven by 15 hp LSE AC motors.

19. One (1) Philadelphia chemical mixer.

20. Four (4) Demco low pressure mud hoppers Model 612-B, three (3) of which are fed by surge tanks.

21. Storage room for sack chemical/mud materials - 6,000 sacks/nominal capaci ty , 5,000 sacks/usable capacity.

22. One (1) Gantry crane fo r handling sack materials in mud storage room.

23. Bulk storage (pneumatic) for bar i te , bentonite and cement with t o ta l capacity of 19,800 cu. f t . and consist ing of six (6) 1,650 cu. f t . bulk mud tanks and six (6) 1,650 cu. f t . bulk cement tanks. Two (2) 90 cu. f t . surge tanks fo r mud mixing and one (1) 220 cu. f t . pressurized cement surge tank.

bbls) consist ing of:

No. 1 - 65.60 cu. metres/412 bbls No. 2 - 75.63 cu. metres/476 bbls No. 3 - 56.85 cu. metres/358 bbls Mud mixing - 25.52 cu. metres/160 bbls Chemical K. - 9.17 cu. metres/58 bbls

-12-

I

6. AUXILIARY EQUIPMENT

1. Dynamic posit ioning and propulsion equipment as fo l lows:

a) Dual Ro5 a'coustic posi t ion measurement \system. b) ARA-5 acoustic r i se r angle indicator . c) Dual H-316 real time computers. d) Taut wire posi t ion measurement system. e) Required Honeywell Marine Systems subsea beacons, two (2)

mounted on BOP stack, one (1) mounted on LRP, one (1) expenda­ble beacon to be tethered to sea f l oo r . (Replacement and repair of beacons for Operator's account.)

Five (5) transversely mounted thrusters with 8 feet diameter var ia­ble pi tch IHC/LIPS propellers driven by constant speed 1750 hp Laurence Scott AC motors.

Two (2) longitudinal var iable pi tch LIPS m«.1n propulsion propellers dr iven by two (2) tandem 1750 hp constant speed Laurence Scott motors.

2. Five (5) SACM Mulhouse engines Type AGO-16 rated 3,400 hp at 1,200 rpm dr i v ing Laurence Scott 2,600 kw 6,600 V al ternators.

3. Three (3) Laurence Scott 3,000 kw 6,600 V/440 V ship service trans-

4. Seven (7) L.S.E. t h y r i s t o r panels rated at 1,100 amps. 520 V, DC converting AC to DC fo r d r i l l i n g funct ions.

5. One (1) Harbor generator, 750 kw, 440 V to supply power when main engines are Id le .

6. One (1) emergency generator 150 KVA, 440 Y, 1,800 rpm.

7. Deck cranes consist ing of :

a) One (1) Clark Chapman electro-. iydraul ic pedestal crane with 100 f t . boom. Rated capacity at 10 meter min radius - 25 tons/at 28 meter max radius - 5 tons.

b) One (1) Clark Chapman 40 ton electro-hydraul ic pedestal crane with 100 f t . boom. Rated capacity at 8.3 meter m1n radius - 40 tons/at 28 meter max radius - 7 tons.

Whip l i ne capacity f o r both cranes - 3 tons up to 30 meter radius.

8. I n i t i a l set of supply boat mooring l ines and cargo transfer hoses (Operator to provide replacements as required) . Four (4) Yokohama type boat bumpers.

t e r . (1) Honeywell automatic stat ion keeping system for 4,000

formers.

-13-

9. One (1) lo t slings fo r onloadint; and of f loading the d r i l l s h i p .

10. One (1) lo t personnel t ransfer nets and \askets.

11. One (1) well test boom, complete wi th piping fnom burner end of boim to manifold at well test area to connect Operator's furnished burner and wellatest equipment.

12. Four (4) welding machines and equipment.

13. Three (3) 535 SCFM each Ingerso1-Rand LLE3 a i r compressors for 125 psi bulk air system driven by 120 hp LSE motors.

14. One (1) 426 SCFM Atlas Copco BE63 ai r compressor for 40 psi bulk a i r system driven by 75 hp LSE motors.

15. Two (2) Weir MXH d i s t i l l a t i o n units with 495 gph capacity used for making potable water only.

16. Normal ships radio and navigation gear to sa t i s fy Br i t i sh DTI regu­la t ions fo r U.K. f lag vessels including:

a) Marconi Conqueror "SDM 1800 watt main SSB transmit ter with Nebula receiver in long range telephone and telegraph.

b) Harris ion watt SSB transceiver Type RF-230M with remote unit 1n r i g superintendent o f f i ce .

c) Marconi Salvor I I I - emergency transmit ter with Nebular receiver - telegraph only - medium range.

d) Sai lor T122/R105 medium SSB radio telephone.

e) Marconi Argonaut short range VHF radio telephone with remote uni ts in radio room, bridge and D.P. room.

f ) Pye F30 AM radio fo r hel icopter voice communications.

g) Texas Instruments T12100 Marine FM VHF transceiver.

h) Appelco Clipper marine FM VHF (n br idge).

1) Southern Avionics non di rect ional hel icopter radio beacon,

j ) Marconi/koden weather facsimi le receiver,

k) Magnivox Model MX 4102 s a t e l l i t e navigation system (SATNAV).

1) Decca Radar, two (2) un i ts .

m) Marisat s a t e l l i t e communication system ( te lex /vo ice) , Sc ient i f i c At lanta Type 3941. (A l l usage/time charges for Operator's account.)

-14-

17. Necessary l i f e boat, l i f e ra f ts and safety gear to meet USCG and DTI regulations for a dr i1Iship including:

2 - enclosed l i feboats located forward (port and starboard) | I capable of accommodating 49 persons each.

' 2 - each open l i feboats located ? f t (port and starboard) capa­ble of accommodating 49 persons each.

8 - 2 5 man l i f e ra f t s capable of accommodating 200 persons.

14 - l i febuoys, with l ights and smoke f l a res .

98 - l i f e jackets distr ibuted throughout accommodation cabins, ( f i t t e d wi th survival l i g h t s ) .

98 - l i f e jackets distr ibuted in four boxes at embarkation posi t ions, ( f i t t e d with survival l i g h t s ) .

98 - survival su i ts d is t r ibuted throughout accommodation cabins.

18. One (1) hel icopter refuel ing system consisting of one (1) Hamworthy pumpinci un i t , one (1) main storage tank of approximately 2,000 gal­lons and two (2) portable slave tanks of approximately 500 gallons each.

19. Two (2) sewage disposal un i ts .

20. 011-wa* -d separating system to meet USCG .nd I0°P r e q u i r e . . . ... n.JudPS primary and secondary o i l water sepa­r a t o r s , required d r i p pans, piping and o i l sluge inc inerator .

21. H S rnd hydrocarbon gas detection and protection equipment consis­t i ng of :

a) One (1) Bacharach Instrument Co. Model XD500W H2S gas detectior and alarm system with readouts at D r i l l e r ' s console and with sensors located at t'ie ce l la r deck, active mud tanks and mud pump room. A central control system is mounted in the Superin­tendent's o f f i c e to i n i t i a t e contingency alarms which are s i t u ­ated throughout the accommodation and various working areas of the vessel.

b) One (1) hydrocarbon gas detection and alarm system with main control unit in wheel house and remote units at the D r i l l e r ' s console and in the engine control room.

c) Various heat, smoke and flame & **»ctors located throughout ves­se l ' s accommodation and working eas.

-15-

d , Thir teen (13). t h i r t y minute self c o n f i n e , breathing appara-

. ) 'Eighteen (18). f i ve minute breathing escape packs.

the d r i l l i n g operation.

THIRD PARTY EQUIPMENT

1. One (1) HaUiburton twin sMd ^ ^ X T a ^ / M ! ! with rec i rcu la t ing mixer and low pr."j»» Hal l iburton to operate Should Operator u t i l i z e a company ^ " ' ^ s h i 1 , be for ^ K S J f ' f f N S costs"! p a r k e t c . , are for the Operator's account.

-16-

!

v..

BEN OCEAN LANCER

Environmental Design

I

BEN OCEAN LANCER

ENVIRONMENTAL DESIGN

4 per

Ben Ocean Lancer" has been designed to operate under the fol lowing tem­perature condi t ions:

A^r:

General: Machinery:

Electrical:

DP System:

-150C to 350C 50°C in machinery spaces -150C to 40°C elsewhere 50°C in machinery spaces 45°C elsewhere •10°C to 26°C in D.P. room (humidity 0 to 90*)

-15°C to +50°C outside D.P. room

Water:

General: Machinery: E lec t r i ca l : D.P. System:

Up to 340C 0°C to 340C Up to 32°C

-5°C to 5OOC

DP System:

The Dynamic Posit ioning System w i l l keep the vessel on location within a c i rc le of radius 6% of water depth in the fol lowing condit ion:

Surface cur rent : 2 knots Constant wind speed: 45 knots Wind gusts: 65 knots Signi f icant wave height: 4.9 m. (16 f t . ) S ign i f icant wave period: 12 seconds

During surv iva l condit ions, the hydrophone s t ru ts should be l i f t e d by one pipe length and set on the handling t o o l . The same should be done for f i e l d moves at speeds less than 7 knots. Higher speeds require f u l l re t rac t ion of the strut. . .

BOP Handling:

Maximum condit ions for handling the B.O.P. are:

50 s ing le amplitude r o l l : 10 sec. period 2° s ing le amplitude p i t c h : 10 sec. period

Derrick:

Derrick loads were calculated and applied 1n accordance with the A .P . I , spec i f ica t ion for steel derr icks.

I tera t ing:

Wind 60 m.p.h.: 100 m.p.h. L i s t 2° : ! 30 Roll

(ha l f amplitude) 50, 10 sec. period: 100,10 sec. period Pi tch

(ha l f amplitude) 20, 10 sec. period; 40, 10 sec. period Heave 6 f t . 8 sec. period: 12 f t . 8 sec. period Hook Load 227 tonnes: None Setback 181 tonnes: 181 tonnes

Survival :

Wind Rol l (ha l f amplitude) Pi tch (ha l f amplitude) Heave Setback

100 m.p.h. 30°, 10 sec. period 3° , 8 sec. period 15 f t . 10 sec. period 181 tonnes.

Substructure:

Substructure is bu i l t to Lloyd's Register "Rules for the Construction and C lass i f i ca t ion of Mobile Offshore Uni ts" .

Operating:

Wind 50 m.p.h. Heel 1° Rol l 6°, 8 sec. period ;:eave 3 m., 3 sec. period Casing Pull 400 tonnes Setback 235 tonnes Riser tensioners (1 at 171 tonnes

(1 at 103 tonnes (4 at 27 tonnes

Survival:

Wind 100 m.p.h. Heel 5° Roll 30Of is sec. period Pitch 7° Casing Pul 1 None Setback 235 tonnes Riser tensioners None

I

Burner Boon.:

The burner boo* should be retracted conditions exceed the following:

Wind speed Roll (half amplitude) Pitch (half amplitude)

Its stowed position when environmental

50 m.-p.'h. 5°, 10 sec. period 2° , 10 sec. period

STANDARD OIL PRODUCTION

SITE CLEARANCE EAST BREAKS 607 (OCS-G-8210), PROPOSED "A" LOCATION

Gulf Coast D i v i s i o n geophysicis ts conclude that mo s i g n i f i c a n t shallow d r i l l i n g hazards ex i s t w i t h i n 500' of the East Breaks 607 "A" l o c a t i o n (4,800* FNL; 5,300' FEL; W.D. - 3 , 1 8 0 ' ) .

The resul ts and report of a shallow hazard survey conducted by John E. Chance and Associates f o r Standard O i l Production Conpany over t r a c t 607 have been reviewed. We are i n agreement w i t h t h e i r f i nd ings and conclude t h a t :

1. Nr obs t ruc t ions are observed on the sea f l o o r w i t h i n 500' of the proposed l o c a t i o n .

2. At leas t the upper 200' of sediment consis t of h o r i z o n t a l s t r a t a . Nearby f a u l t s o f f s e t the sea f l o o r , but none are found w i t h i n 500 ' .

3. Sediments at the sea f l o o r consist of s i l t y c l a y .

A. No f a u l t s or high pressure gas accumulations are observed w i t h i n the upper 1000' below mud l i n e or w i t h i n 500' of the proposed d r i l l s i t e .

Attachments cons i s t of annotated copies of the pinger and water gun records fo r l ines 12 and 41 of the hazard survey.

Prepared by: Jh M. Karas

Dar

Approval: •j :> .,?• P r o j . Mgr. C. A. Watren

'f$JL Dlv. Geoph. 5 j E . Golden

cc: B. Boyce (w/o) J . Golden (w/o) Unit Leader (w/o)

C Warren (w/attachments) M. Karas (3^w/attachments)

0012W

ATTACHMENT B

STANDARD OIL PRODUCTION

SITE CLEARANCE EAST BREAKS 607 (0CS-O821*0), PROPOSED "B" LOCATION

Gulf Coast D l V i s i o n geophysicists conclude that no s i g n i f i c a n t shallow d r i l l i n g hazards ex i s t w i t h i n 500' of the East breaks 607 "B" l o c a t i o n (5,050' FNL; 1,450' FEL; W.D.-3 ,160 ' ) .

The resul ts and report of a shallow hazard survey conducted by John E. Chance and Associates f o r Standard O i l Production Company over t r a c t 607 have been reviewed. We are i n agreement w i t h t h e i r f i nd ings and conclude t h a t :

1 . No obs t ruc t ions are observed on the sea f l o o r w i t h i n 500' of the proposed loca l

2. At l e a s t the uppt. 200' of sediment consist of h o r i z o n t a l s t r a t a .

3. Sediments at the sea f l o o r consist of s i l t y c l a y .

4. No h i g h pressure gas accumulations are observed w i t h i n the upper 1000' below mud l i n e or w i t h i n 500' of the proposed d r i l l s i t e . A f a u l t loca ted 500' south d ips to the nor th and o f f s e t s the sea f l o o r . At a 45° ang le , i t should i n t e r s ec t the w e l l bore at a depth of 500' below mudl ine .

Attachments cons i s t of annotated copies of the pinger and water gun records fr . r l ines 15 and 41 of the hazard survey.

Prepared by: ~\A —N J

hi 7<M£l M. Karas

Date

Approval P r o j . Mgr.

Div . Geoph

C. • d 'IL 1 •• • -

E. Golden

cc: B. Boyce (w/o) J . Golden (w/o) Unit Leader (w/o)

C. Warren (w/attachments) M. Karas (3-w/attachments)

(0012W)

ATTACHMENT B

STANDARD OIL PRODUCTION

SITE .CLEARANCE EAST BREAKS 607 ( O C S H G - 8 2 1 0 ) , PROPOSED "C" LOCATION

Gulf Coast D i v i s i o n geophysicis ts conclude that no ! s i g n i f i c a n t shallow d r i l l i n g hazards e x i s t w i t h i n 500' of the East Breaks 607 "C" l oca t i on (10,500' FNL; 11 ,850 ' FEL; W.D. -4 ,150 ' ) .

The results and r e p o r t o f a shallow hazard survey conducted by John E. Chance and Associetes f o r Standard O i l Production Company over t r a c t 607 have been reviewed. We are i n agreement w i t h t h e i r f i n d i n g s and conclude t ha t :

1. No o b s t r u c t i o n s are observed on the sea f l o o r w i t h i n 500' of the proposed l o c a t i o n .

2. At least the upper 200* of sediment consist of ho r i zon t a l s t r a t a .

3. Sediments a t the sea f l o o r consis t of s i l t y c l a y .

4. No high pressure gas accumulations are observed w i t h i n the upper 1000* below mud l i n e or w i t h i n 500' of the proposed d r i l l s i t e . A f a u l t located 750' nor th dips to the south and o f f s e t s the sea f l o o r . At a 45° ang le , i t should i n t e r s e c t the w e l l bore at a depth of 750' below m u d l i n e .

Attachments cons i s t o f annotated copies of the pinger and water ^un records f o r l ines 5 and 43 o f the hazard survey.

Approval P r o j . Mgr.

c c : B. Boyce (w/o) J . Golden (w/o ) Unit Leader (w/o )

C. War en (w/attachments) M. Karas (3-w/attachments)

(0012W)

ATTACHMENT B

SOHIO-EXXON OCS-G-6210

t

•fT

607

AT - i V - ' «g» /*V_U4501 FEL

P.T.O.-12.000* P.L0«-13700*

P.T.0*-11.8004

1W5QLFEL

SCALE r<4M0' MOO

STRHDflRD OIL PRODUCTION CO. c u / CMWT OFFSHORE TOMS

BLOCK 607 POT gggg ggg

PROPOSED HELL LOCATIONS

wwa>. .am HIWON iowTt»v3a e kg.

MI ittMHwam

ATTACHMENT C-2 1 ! 1

2S

SOHIO PETROLEUM COMPANY

DRILLING MUD COMPONENTS

Products of IMCO Services and Sun D r i l l i ng Products are l i s ted in this program fo i l l us t ra t ion | purposes. Equivalent or comparable products are available from other service companies such as NL Baroid, Magcobar, and Milchem.

Trade Name

IMCO GEL

IMCO SURLIFT

IMCO GELEX

IMCO LOYD

IMCO PLUG

IMCO MENTOR-28

IMCO RD-111

IMCO C-COR

IMCO X02

IMCO BAR

CAUSTIC SODA

IMCO LIG

SODA ASH

SUN LUBRA-GLIDE

SUN LUBRA-SEAL

w. Composition

Western Bentonite; A natural occuring element containing plates of S i l ica & alumina ( Iner t )

Preshaped, wet processed, high density chrysot i le asbestos (a native calcium magnesium s i l i ­cate)

Co-polymer of polyvinyl acetate a maleic anhydride

Pregelantinized Starch

Crushed walnut hulls

Mineral Oil

A proprietary blend containing modified 1ignosulfonates, modified l i g n i t e and chromate

An organic f i lming amine

An Inorganic compound of the b i s u l f i t e family

Mined bar i te (Ground barium sul fate)

Sodium hydroxide

L ign i te , ground 4 refined

Sodium carbonate

Stirene, dlvinalbenzene copolymer spheral beads

Micronized cal lulose f iber cotton seed hairs

Purpose

Primary wall building, f i l ­trate control, & suspending agent for water based d r i l l i r f luid

Viscosifier for upperhole fluids

Bentonite extender

Fluid loss control

Lost circulation & bit balli

Lubricant/Fluid loss control

Thinner and f i l t r a t e control for water base dr i l l i n g f l u i

Corrosion inhibitor and oxyg scavenger

Oxygen scavenger

Weighting agent

Alkalinlty control

Thinner & water loss contro'

Removing hardness (calcium) from d r i l l i n g fluid

Reduces torque 4 drag

Improve wall cake

ATTACHMENT E

— _

Air Qua!ity Review For

East Breaks Area Block 607 OCS-G-8210

Standard Oil Production Company 3639 Ambassador Caffery Parkway

Lafayette, Louisiana 70503

Submitted To Cary Kerl in

Regulatory Supervisor

June 4, 1986

Prepared by: John E. Chance A Associates, Inc.

Regulatory and Environmental Division Lafayette, Louisiana Project No. 86-8106

John C Chance & Assoc., Inc. ATTACHMENT F

Projected Air Emission Schedule for Exploration Project

I . General Information

Location off Fac i l i t y - East Breaks Area Block 607 Name of Rjfg/Platform - D r i l l Ship

Owner/Operapr - Standard Oil Production Company 3639 Ambassador Caffery Parkway Lafayette, Louisiana 70503 !

Contact Person - Cary Ker l in Regulatory Supervisor

Project Start Date - January 1 , 1988 Project End Date - August 17, 1989

37,500 feet to be d r i l l e d 124 miles Offshore

I I . Total Emissions at Rig/Platform, D r i l l i n g (years 1 - 2)

Emitted Substance

Al 1 owable Emissions (tons/yr)

Projected Emissions (tons/yr)

Emission Status (0K/NG)

CO

so2

N O x

VOC

TSP

84546.06

4129.20

4129.20

4129.20

4129.20

34.24

1.16

218.89

J1.73

.13

A. Transportation Emissions, D r i l l i n g

Emitted Substance

Crew Boat

(tons/yr

Supply Boat

(tons/yr)

OK

OK

OK

OK

OK

Helicopter tons/yr)

CO 15.57 13.34 2.96

SO.

NO. 109.22 93.62

.09

.30

VOC

TSP

5.88 5.04

•k

.27

.13

John E. Chance & Assoc., kw.

Crew boat horsepower of 2500 ' Port of Sabine Pass, Texas t Waiting Time 4 hour(s) per t r i p

14 Tr1p(s) per Week

I I /Supply boat horsepower of 3000

Port of Sabine Pass, Texas Waiting Time 10 hour(s) per t r i p

4 Tr1p(s) per Week Hel i ^u K to rs

Port of Sabine Pass, Texas 10 Tr ip(s) per Week

I I I . Findings of Air Quality Review

As per D0I-MMS regulations this f a c i l i t y Is exempt from further air qual i ty review as i t has bee i determined that i t s operation w i l l not have a s ign i f icant adverse environmental impact on a i r qual i ty .

IV. Factors Used 1n Calculations

A. Emission Factors for Power Generation

Emitted Substance(s)

Drilling (lb/hp-hr)

Production (lb/hp-hr)

CO .004200 .00084

so2 .001900 .00013

N Ox .028000 .0031

VOC .000950 .00031

TSP • .00011

B. Emission Factors for Transportation

Emitted Substance(s)

Hel1copters (lb/engine-LTO)

Boats (lb/gal)

ro 5.7000 .0598

so2 .1800 •

.5700 .4196

VOC .5200 .0226

TSP .2o00 *

John Em Chance & Assoc** kw.

Drill lug Power Generation 60 hp-hr/ft

Fuel Consumption .0959 hp-hr/ft by Boats

V. Methodology

Rigjplatform - horsepower-hour method Boats - horsepower-hour method Helicopters - landing/takeoff (LTO) cycle method

VI. References

"Atmospheric Emissions from Offshore 011 Development and Production" Drilling - EPA-450/3-77-026 (June 1977) pp. 81-92.

"Compilation of A1r Pollutant Emission Factors", Boats and Helicopters - EPA Report AP-42 - (August 1977), 3rd edition, pp. 116, 125, 1287.

* The EPA does not provide SO,, and TSP emission factors

for boats, nor does i t provide TSP emission factors for

drilling.

%3ohn C Chance 6 Assoc., inc.

t S O H I O J S O H I O P E T R O L E U M C O M P A N Y

October !4t, 1935

RECEIVED ' \ \ .

M r . S a n d r i d g e Texas D i s t r i c t

115 Circle Way Lake Jackson, TX 7",566

Dear M r . S a n d r i d g e :

I am w r i t i n g to reques t a w a i v e r o f s i d e - s c a n s o n - r a n d m a g n e t o m e t e r r e q u i r e m e n t s as s t a t e d i n N T L - 8 3 - 3 on o u r d e e p - w a t e r c o n t i g u o u s b l o c k s . Eas t B reaks 563 , 564 , 607 . The w a t e r d e p t h s a c r o s s these b iocks a r e 2800-^200 f e e t .

The p r o b l e m w i t h a c q u i r i n g s i d e - s c a n s o n a r a n d m a g n e t o m e t e r da fa i n v e i y deep w a t e r is g e t t i n g t he senso r n e a r t h e ocean f l c r . A l t h o u g h good r e s u l t s c a n be o b t a i n e d w i t h t h e t o w f i s h a n y w h e r e f r om 10 p e r c e n t to 50 p e r c e n t of the r a n g e s c a l e a b o v e t he s e a f l o o r , o p t i m u m r e s u l t s occur w h e n the t o w f i s h i s 10 p e r c e n t o f t he r a n g e s c a l e a b o v e t he ocean f l o o r .

As w i t h a n y towed s u b m e r g e d d e v i c e , t he d e p t h o f t he senso r i s a f u n c t i o n o f c a b l e l e n g t h a n d s p e e d t h r o u g h t h e w a t e r . G e n e r a l l y , a c a b l e l e n g t h - t o - d e p t h r a t i o o f 3 - 4 : 1 c a n be e x p e c t e d a t tow speeds a d e q u a t e f o r success fu l g a t h e r i n g o t h e r h i g h - r e s o l u t i o n d a t a r e q u i r e d bv N T L - 8 3 - ? . n a m e l y s e i s m i c a n d b a t h y m e t r i c d a t a . Ou r h i < ? h - r e s o i u t i o n c o n t r a c t o r h a s p r o v e n e l e c t r i c a l c a b l e s of 16,000 feet i n l e n g t n . Th i s w o u l d i n d i c a t e t h a t a c q u i r i n g s i d e - s c a n s o n a r d a t a i n d e p t h s of 4000-5000 feet i s p o s s i b l e u n d e r i d e a l c o n d i t i o n s b u t o n l y a t g r e a t expense t o t he o p e r a t o r . I f o c e a n c u r r e n t s w e r e v e r y m i l d , a 4 . 0 0 0 - f o o t t o w f i s h d e p t h c o u l d be o b t a i n e d w i t h 16,CX) feet o f c a b l e d e p l o y e d . The l i n e e x t e n s i o n s to g e t f u l l s i d e - s c a n s o n a r c o v e r a g e i m m e d i a t e l y becomes t h r e e mi les a n d b o a t t u r n s a b s o r b a n e n o r m o u s a m o u n t o f t i m e . We h a v e to s u r v e y f i v e b l o c k s to g e t c o v e r a g e i n o n e . I f c o n d i t i o n s e x i s t t h a t p r e v e n t one f r o m g e t t ng r e q u i r e d d e p t h a t c o n v e n t i o n a l speeds , one m u s t t h e n r u n t h e s u r v e y t w i c e : once a t m a n a g e a b l e speeds to a c q u i r e s e i s m i c a n d b a t h y m e t r i c d a t a , a n d once a t s l o w e r speeds t o g e t s i d e - s c a n s c n a r d a t a .

Know ledge o f the p o s i t i o n of t he t o w f i s h . i . e . , w h e r e i s d a t a b e i n g g a t h e r e d , i s a n o t h e r i m p o r t a n t q u e s t i o n . U l t r a s h o r t b a s e l i n e a c o u s t i c tools c a n be e m p l o y e d , b u t g e n e r a l l y e x p e r i e n c e r a n g e s no g r e a r h e r t h a n 10.000 feet , e q u a l l i n g a f i s n d e p t h c f 2 ,500 feet m a x i m u m .

ATTACHMENT 6

Mr. S a n d r i d g e MMS TEXAS DISTRICT October U . J 19*5 Page 2

Long base j l i f .e a c o u s t i c p o s i t i o n i n g svs tems c a n be e m p l o y e d " w h e r e t r a n s p o n d e r p a r e d e p l o y e d on t he ocean f l o o r . These d e v i c e s u s u a l l y expe r i ence r a n g e s e q u a l to o r s h o r t e r t h a n t he u l t r a s h o r t b a s e l i n e p o s i t i o n i n g ( s y s t e m s . t h e r e f o r e n u m e r o u s t r a n s p o n d e r s ; w o u l d h a v e to be d e p l o y e d to s u r v e y a s i n g l e b l o c k . These d e v i s e s a re v e r y expens i ve s i n c e an a c o u s t i c r e l e a s e must a c c o m p a n y each t r a n s p o n d e r . A lso , s u r f a c e i n t e r r o g a t i o n e q u i p m e n t is e x p e n s i v e a n d r e c o v e r y of the t r a n s p o n d e r s is less t h a n 100 p e r c e n t .

A l l in a l l . n w o u l d seem t h a t the p r a c t i c a l d e p t h l i m i t f o r a c q u i r i n g . i i c i . ' i i . ' i ^ i i i i s l u e - S O f i u l J a i .1 13 j j ^ ' u i 1 . j \ Z f t f v t »;. ' ' ,v. 'Ui [ . i c u of e x p e n s i v e a n d e x c n c t oo l s arte.' 'or p r o c e d u r e s .

Very t r u l y y o u r s .

SOHIO PETROLEUM COMPANY

GUlf OF MEXICO OCS REGSOM ffATE^OCT

ATTACHMENT G