In Reply Refer To: RP-2-1 1 '986

Sun Exploration and Production Conpany At tent ion: Kr. Al fred B. Norwood Post Off ice Box 1501 Houston. Texas 77251

Gentleiaen:

Reference U aade to your I n i t i a l Plan of Exploraticr and Environmental Report received March 7. 1986. for Leases OCS-G 7025 ano' 7026, Blocks 1C2 ano 163. respectively. Green Canyon Area. This plan Includes the ac t i v i t i es proposed for Hells A through E 1n Block 162 and Wells A through E in Block 163.

In accordance wi th 30 CFR 250.34. revised December 13. 1S79. and our l e t t e r dated January 29. 1979. th is plan has been determined to be complete as of March 14. 1986. tod 1s now being considered for approval.

Your pl -iii control lumber ta N-2431 and should be referenced (n your conmunication and correspondence conceming th is olan.

Sincerely yours.

itfcg >&j.i A. Ooiidld Giroir

Acting Reglonai Supervisor Rules and Production

bcc: Lease OCS-G 7025 (OPS-3-2) (FILE ROOM) Lease OCS-G 7026 (OPS-3-2) (FILE ROOM)

tOPS-3-4 w/Publlc In fo . Copy of the plan and ER (PUBL.REC.)

MJTolbert:aow:3/12/86 sun7025 Disk la

mil 1 8 1986

lnfo/mntn>'i *i»rvicp3 Section

S u n P r o d u c t i o n O p e r a t i o n s D i v i s i o n Offshore District

S u n E x p l o r a t i o n a n d P r o d u c t i o n C o m p a n y 12121 WickChesterLane PO Ben 150' Houston TX 77251 1501 7135312000

March 3, 1986

Regional Supervisor Rules & Production Minerals Management Service P.O. Boy 7944 Metairie, Louisiana 70010

Dear Sir:

Sun Exploration and Production Company hereby submits a Plan of Exploration fot the subject leases in accordance with the provisions of 30 CFR 250.34 for your approval.

Ten copies of th is plan are enclosed, six proprietary and four for public infonnat ion.

Re: Plan of Exploration Green Canyon Blocks 162/163, OCS G 7025/7026

Sincerely,

ABNrrpb

Enclosures

PUBLIC INFORMATION

1C6/1703 - (1)

PLAN OF EXPLORATION

OCS G 7025/7026

GREEN CANYON AREA BLOCK 162/163

SUN EXPLORATION AND PRODUCTION COMPANY

Contact:

A.B. Norwood Sun Exploration and Production Company

P.O. Box 1501 Houston, Texas 77251-1501

Phone: (713) 531-2158

GREEN CANYON AREA BLOCK 162/163 OCS G 7025/7026

TABLE OF COMMENTS

Description of Work

Shallow Hazards Statements

Area Location Maps

Base Support Facility Data

Vicinity Map

Env. onmental Safeguards

List of Mud Additives

Description of Drilling Rig

Air Quality Computations

Geological and Geophysical Data

Environmental Report

Shallow Hazard Survey Report

1C6/1702 - (2)

SUN EXPLORATION AND PRODUCTION CONPANY PLAN OF EXPLORATION GREEN CANYON AREA BLOCK 162/163 OCS G 7025/7026

This Exploration Plan for Green Canyon Block 162/163 has been prepared 1n accordance with 30 CFR 250.34-1, Gulf of Mexico OCS Orders and Notice to Lessees No. 83-3.

This Block was leased in Sale 81, 1984. Geophysical activities have been conducted and the first exploratory well should begin as early as April 1, 1986 - subject to the availability of a drilling rig, approval of this Exploration Plan and the required permit to d r i l l .

1C6/1702 - (3)

Subject SHALLOW HAZARDS AT THE PROPOSED WELLSITES ON GREEN CANYON AREA ouOCKS 162 and 163, OCS-G-7025 and OCS-G-7C26

In tero f f ice Correspondence

Date September 6, 1985

Location Gulf of Mexico and East Coast D is t r i c t

From Preston Chaney

To A. B. Norwood

A high resolution multi-sensor survey was conducted over the entire two blocks during April 1985 by Odom Offshore Surveys Inc. The survey disclosed a smooth seafloor with no indication of surface faulting or shallow gas accumulation at any of the following locations:

LOCATION COORDINATES

GREEN CANYON 162

A 7450' FWL & 700' FNL Block 162 B 5100' FWL & 1200' FNL Block 162 C 2700' FWL & 6100' FSL Block 162 D 7500' FWL & 1300' FSL Block 162 E 4000' FWL & 4000' FSL Block 162

GREEN CANYON 163

A 2550' FWL & 1300' FSL Block 163 B 5000' FWL & 2500' FSL Block 163 C 7100' FWL a 7800' FSL Block 163 D 5850' FWL & 3000' FNL Biock 163 E 3500' FWL & 1000' FNL Block 163

Preston E. Chaney, Jr. U. S. Offshore and Alaska Region Gulf of Mexico and East Coast District

PEC:lh

1D6G/380 - (1)

§ 7450 6 A , I P PTO I500CT

-5100-PTD 15000'

•2700'-[PTD 16000'

•4000

1 PTD 16000

-7500-"?PTD 16000"

8

Jf Sun Exploration 8 Production

Greer. Canyon Block 162 Plan of Exploration Scale! l"« 2000'

•3500'-

I PTO 16000' o

8

163

•5850'-PTD 16000*

-7100-PTD 16000'

-5000-B

r PTD 16000'

Jf Sun Exploration e» Production

Green Conyon Block 163 Plan of Exploration Scale! !"« 20CX)'

OTHER DATA AND INFORMATION

Sun will utilize the existing Sabine Base site at Sabine Pass, Texas

and will also lease existing facilities from a contractor 1n Fourchon,

Louisiana to support these proposed operations.

This present (since 1973) offshore support terminal encompasses a total

area of 4.25 acres and includes an office building with small inside

storage area; pipe and equipment storage yard, boat dock, bulk mud sto­

rage, diesel fuel storage, and bulk cement storage and a large ware­

house.

Travel routes for boats from Sabine Pass will be directly to the Sea

Buoy (18 miles) then directly to Green Canyon Block 162/163 surface

location. Travel routes for boats from Fourchon will be via the Bayou

La Fourche Canal into the Gulf of Mexico then directly to Block 162/163.

Sun will utilize the PHI facilities at Houma for helicopter transpor­

tation from the Fourchon area. Helicopters will use the most direct

route feasible. Boat and helicopter trips to Green Canyon Block 162/163

will probably occur on an average of three trips per week to transport

personnel and/or supplies.

1C6/1702 - (7)

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• - A T I B y A l K T IN ' A l t

t U S ' . t K N O L L U O I I L I C H • N O I I I U M

BLKS. 16A- & 163

GREEN CANYON AREA OFFSHORE LOUISIANA

OCS LEASE BLOCK MAP

SCALE 1 " = 1.0.000*

ENV IRONME NTAL-SAFEGUARDS

SUP. Exploration and Production Cornpany (Sun . J achere to a l l app'.cab 1

environmental standards of the EPA, MMS anc J.S. Coa. t Guard. Sun is ? member of Clean Gulf Associates (CGA) and r-.:11 utf«i.:e thei." equipment and the manpower and expertise o* Petersc Maritime- Services, Inc. as well as other specia l is ts in po'V' t ion control iind clean up as needed.

Existing o i l s p i l l cleanup equipment w i l l beach prot tc t ion and bird cleaning station are a l l within a few hours ca ' l in the event of a s p i l l . Th - equipment is maintained cn standby and in i reacy state at CGA locations at Grand I s l e , Louisiana; Houn.-, louisiana; I r t ra Coaat i l C t̂ Louisiana; Cameron, Louisiana; Galveston, Texa* and Rrr<port. Texas.

i* ; average response times (including load-out and t rave l ) for the ,.iajor pieces of o i l s p i l l containment and clean-up equipment available ( i . e . , Fast Response Skimmer Systems I and I I , Containment Boom, Radio System, Saucer Type Skimmers, Boat Spray System, e tc . ) L - e projected as fellows:

Locai '"-r. Hours

Cameron, Louis.ina 39 Intra-Coastal C t y , • .: j-'siana 34 Galveston, Texa\ 34 Houma, Louisiana 26 Grand Is le , LOUlV.-. .' 15 Venice, Louisiana 19 Rockport, Texas 4 0

The response times for larger eiuiDment (H Volume, Open Sea Skimmer System - Hoss Barge) and/or s ra l le r equrm<;... w ; l l vary considerably accordirg to tne point of or igir , type of transportat ion, weather conditions, * tc .

A c1 \t of Sun's Oil Sp i l l Alert 3rocedure for the Gulf ot Mexico is on "w with the U.S. MMS off ices i'i the Gulf of Mexico area. Sun intends

tJ u t i l i ze Peterson Maritime Ser/ ices, Inc. 'o r cleanup operation- should an o i l sp i l l occur.

Sun w i l l not dispose of well i l u ids containing free o i l into the Gulf of Mexico. Any f l u i d containing free o i l w i l l be brought to shore for proper disposal A l l sol id wastes w i l l be disposed of as per OCS Order No. 7. Sun's personnel w i l l be instructed in the techniques of equip1 in t maintenance and operation relat ive tr pol lut ion prevention, and pol lut ion inspections w i l l be performed as OCS Order No.7.

Sun's base of operations in case of an o i l sp i l l i " the emergency response center in our o f f i ces at Houston, Texas. Field p. —SonneI w i l l be dispatched from our base support f a c i l i t y at Sabine Pass, Te*.-:.

1C6/1702 - (10)

OCS G " f J 2 r / 7 0 2 i

GREEN r»«:VON BLOCK 162/163

DRIUING MUD MATERIALS

Trade Names ' •' y . nba r ) Generic Nt ne

S a l t Gel A t U >ulc,*te Magccgel Bent m i t e Magcobar B a r i t e XP-20 Chrome L i g n i t e Spersene Chrome L ignosu i fona te Caustic Soda C?u~t ic Soda Drispac Polyani - * r Ce l lu lose Aluminum Stera te Aluminum Stera te Bicarbonate of Sod? Bicarbonate o f Soda Nut Plug Walnut Kul s Magcc-Mir«. H;Ca Soda Abh Soda Ash CMC r arbc i .xy-methy l »V l l u l ose HEC Hydr rxy -e thy l r e l i o . o s e Graphi te Graphi te D? D*"Pl ing Dev: rgent XZ - . ' ymer Co*bohydrate Biopolymer

V iscos i t Tana t h i n L i g n i t e MC Quebracho I. ignosu l fonata Ben-Ex V iny l \ ce ta te -Ma le i c

Anhydride Copolymer W0-30 (M./chem) Graded Calcium Carbonate B i tw i se r (Major Mid & Chem) Mineral O i l w / su r f ac tan t D ispha l t (Major M'id & Chem) M'-^eral O i l w / g i l s o n i t e Clean Spot (De l t a ) M i n t - a l ?-'l -/amide

e m u l s i f i e r , f a t t y ac i ds , and w e t t i n g a g i n t

Black Magic* - Sack I i sh ing D(«.S*1 - / a i r - b l o w n a s p h a l t , Calcium Hydrox de , f a t t y a c i d s , s u r f a : t e n t

* I f t h i s materiel 1 i s used, i : w ' l i h** hauled to shore f o r d i sposa l .

D r i l l i n o mud w i l l be t ' t ' H z e d on we l l wel l basis w i th the excess being dtmped overboard .

1C6/1702 - (11)

ZSCk.̂ TION OF DRILLING RIG

The d r i l l i n g r i g to be used has not been contracted, however Sun intends

to use either a semi-submersible cr a d r i l l ship, whichever is available.

A description of the Discoverer 534, a sel f propelled Tjrret Moored

Dr i l lsh ip is attached a typical vessel to be used.

1C6/1702 - (12)

DISCOVERER 534 3 S3LF-PROPELLED TURRET MOORED DRILLSHIP rated Drilling Depth: 20,090

Principal Particulars Lcngtn B t l « H

Perpendicular? te»'1

Length Overall ' 34 1/ ot

Beam Overall 80 t, el

Hull Depth 32 »oe«

Dratl. Orllllng 24 f#>et 9 Irenes

Draft at cofMlne 24 feet 9 inches

Lightship Displacement ...13,65c long tons

Moon Pool 26 feet diameter

Propulsion Two (2) 15 ft 6 in dia centerline screws. 8.000 np each

Calm Water Speed If. knots

Regulatory Body Ossi f icat ion A B S *$* Al DI;!!:.";} Unit

• I * AMS Drilling Unit ond Ice Strengtnened Class (1-A) Certified by Lloyd's Register

Regulatory Body Approvals DEN Certificte of Fitness Department of Energy (U <.) International Loadline Reguiat ion International Convention U•< ^ j fe ty of Life at Soa. 1960 (SOLAS) Irish Certificate o' Safety and Fitness Suc» a n d Panama Canal Tonnage Regulations U.S. Coast Guard Regulations U S. Public Health Service Regulation

Registry Panama

Owner

Deep Ocean Or ':>r-.g. Inc.

Variable »..»-.d Capacity ...7.600 long tons Tub).UN atorage Two (2) pipe racks forward 72 ft. x 32 ft., two (2) pipe racks aft: 82 ft x 27 ft., two (2) casing holds aft: 37 ft x 26 ft.

Bulk Mud Eight (8) t/ irxs. 1.500 cu. ft. each. 12.000 CL. II total

Bulk Cement Four (4) tanks. 1.200 cu. ft each.

4.800 cu ft. total

Sack MJ•< 1 .) Approximately 2.200 sq. ft

Llqulc' tV.-d Active 1 800 bo.s. Reserve: 2.400

Diesel Fuel Oil 13.200 bbls

Drilling Water 12.400 bbls

Potable Water 1.400 bbls.

Positioning nnd Mooring Mooring System Eight (8) hydrau l ic moor ing

winches. 300.000 Ibs. line pull. 7.000 ft of 3 in. cable; 1.400 ft. of 2Vj in. chain, one (1) 30.000 Ibs. anchor pei mooring line

Stationkeeping System ...Comp.ete Honeywell Automatic Station Keeping system (ASK) with HS-5 position reference, six (6) Bird-Johnson contro'lable pitch, vertical input, right-angle thruster units. 2.500 hp each

Drilling Equipment Derrick Pyramid Dynan. jernck. 46 ft. x

54 ft. base x 170 ft. high. 1.330.000 Ibs. GNC

Substructure Sonat Offshore Dril l ing design. 54 ft. x 46 ft. base x 40 ft high

Drawworks National 1625-DE powered by two (2) GE 752 D.C. motors. TA in dri l ' me. 9/16 in. sandline, Elmagc^' . ?38 auxiliary brake. Crown-O-M«c

Rotary National C-495 independent rotaiy

Prime Movers Six (6) EMD MD 20E9. 2500 KW. 4160 volt. 3-phase diesel electric generators, and one (1) EMC MD 12E8-6. 1050 KW. 4160 volt generator

Auxiliary Power One(1)CaterpiilarD-398TAV-12. 550 KW. 600 volt A C . phase generator

Emergency Power One (1) Caterpillar 3304. 90 KW 120/206 volt A C diesel electric generator set

Power Distribution Eight (8) GE 2400 amp SCR power units

Crown Block Pyrumid. seven (7) 60 in. din. sheaves grooved for IU in wiry line, 500-ton capacity

Traveling Block Not onal. six (6,60 in. dia. sheaves grooved for ' a in line. 500-ton capacity

Hook Byron Jackson. 55C0 Dynaplex. 500-ton capacity

Operating Water Depth: Minimum: 150 feet Maximum: 3,000 feet

Swlve' National P-650. 650-tcn capacity

Mud Pumps Two (2) National 12P-160.1600 hp triplex pumps, each powered by GE 752 dual motors

Mud Mixing Pumps Four (4) 6 in. X fl in mud mixing pumps

Degasser Wellco Series 5200

Desander One (1) Pioneer S3-12 Volume-master. 1500 GPM. at 70 ft. head

Desilter Two (2) Pioneer Tl6-4Siltmasters. 800 GFM at 75 ft head each

Shale Shaker One (1) Brandt dual tander rated 1.600 GPM at 20/40 mesh, d 800 GPM wi th ob long 10/80 mesh screens

Centrifuge Pioneer. 18 in. x 28 in. decanting centrifuge, driven by explosion proof 20 hp electric motor

Gaa Detection System .C»ie(l)H,S Gas Detection System. monitors located in mud pit area and pump room

Orill Pipe (API) 10.000 ft. of 5 in. O.D . Grade "E". Range 2. 19 50 Ibs./ft. drill pipe; 6H in. O O. x 4'-. in. I.F. tool joints: 13.000 tt. of 5 in. O.D.. Grade "G" . Range 2. 19 50 lbs /ft. drill pipe; 6H in. O.D. x A'/i in I.F. tool

joints

Motion Compensator DSI. 1.200.000 lbs. pinned capacity. 400.000 lbs. operating capacity. 20 ft. maximum stroke

Riser Tensioners Twelve (12) HSMC tension units each rated at 80.000 lbs., with 50 ft. stroke, with 60 in. sheaves

Guideline Tensioners Four (4) HSMC tension units each rated at 20,000 lbs . with 40 ft stroke

Pipe Handling System . . .Byron Jackson hydraulic auto­matic 3-arm pipe handling system consisting of upper, intermediate and lower racker arms

Subsea and Well Control Equipment -H 2S Service Riser Two (2) Regan typo BT-4. 18S in

nom. telescopic joints. 50 ft stroke. Regan type FCF-8; 18H in O.D. x .687 in. wall

Diverter System Regan KFDS with 14 in. outlets

Ball Joint One (1) Regan ball |omt type CR-1. 20 degree angle

Ram Preventers Two (2) Cameron type "U " double 16% in.. 10.000 psi w p.

Annular Preventers Two (2) Hydnl GL. 16'. in., 5.000 psi w p.. two (2) Vetco H4.16V. in.. 10.000 psi hydraulic connector

B.O.P. Control System ...Koomey 36240-3S air and electric powered

Television Hydro Products underwater pan and tilt television

Choke and Kill System McEvoy. 10.000 psi dual choke and kill manifold with McEvoy valves, two (2) manually adjustable and two (2) remote controlled chokes

B.O.P. Stack Storage Stored on guidetrack system on derrick floor

Auxiliary Equipment Accommodations Air-conditioned quarters for 163

persons, hospital for 6 persons, galley and messroom facilities

Crane* Two (2) Bucyrus Erie MK-35 cranes. 35-tons at 20 ft. radius, with 80 ft. booms, two (2) Bucyrus Erie MK-60 cranes. 47 tons at 25 ft. radius, with 120 ft. booms

Helicopter Deck 90 tt. x 92 ft. to accommodate Sikorsky 5-61 helicopter. 2.000 gal.

fueling system

Navigation Equipment Complete high seas navigation equipment, environmental motion and monitoring system and data recording

Communication Equipment Radiotelegraph (SOLAS Station

System), main SSB radiotelephone, marine VHF-FM radiotelephone, ships dial 'elephone system, sound powered telephone. P.A. syslem

Water Distillation Units . . .Two (2) Nirex units rated at 600 GPH each

Lifesaving Equipment Two (2) each. 42 and 64-person diesel powered lifeboats: two (2) each. 25 and 15-person life rafts. 215 life jackets with whistle and water activated lights

Firefighting Equipment . . .F ixed CO, fire extinguishing system in engine, paint, and boilsr room, portable fire extinguishers and hydrants throughout ship

Operating Water Depth: Minimum: 150 feet Maximum: 3,000 feet

Swivel National P-650. 650-ton capacity

Mud Pumpa Two (2) National 12P-160.1600 hp triplex pumps, each powered by GE 752 dual motors

Mud Mixing Pumps Four (4) 6 in. x 8 in. mud mixing pumps

Degasser Wellco Senes 5200

Desander One (1) Pioneer S3-12 Volume-master. 1500 GPM, at 70 It. head

Oeailter Two (2) Pioneer T16-4 SiHmastors. 800 GPM a! 75 ft head each

Shale Shaker One (1) Brandt dual tandem, rated 1.600 GPM at 20/40 mesh, and 800 GPM with oblong 40.80 mesh screens

Cenlrlluge Pioneer. 18 in x 28 in decanting centrifuge, cnven by explosion proo' 20 ho electric motor

Gaa Detection System . . On-.' (1) H . S Gas Detection System, monitor a located in mud pit area and pump room

Drill Pipe (API) 10.000 ft. of 5 in C D , Grade "E". Range 2. 19 50 lbs /ft. drill pipe. 6H in. O D. x 4V, in I.F. tool joints; 13.000 ft. of 5 in. O O , Grade "G" . Range 2. 19.50 lbs /ft. drill pipe. 6H in. O.D. x 4Vj in I F tool

joints

Motion Compensator DSI. 1,200.000 Ibs. pinned capacity. 400.000 Ibs. operating capacity. 20 ft. maximum stroke

Riser Tensioners Twelve (12) HSMC tens.on units each rated at 80.000 Ibs.. with 50 ft. stroke, with 60 in. sheaves

Guideline Tensioners Four (4) HSMC tension units each rated at 20.000 lbs . with 40 ft stroke

Pipe Handling System — B y r o n Jackson hydraulic auto­matic 3-arm pipe handling system consisting ol upper, intermediate and lower racker arms

Subsea and Well Control Equipment -H 2S Service Riser Two (2) Regan type BT-4, tf l% in.

nom. telescopic joints. 50 ft stroke, Regan type FCF-8; 18H in 0 . 0 x .687 in wall

Diverter System Regan KFDS with 14 in. outlets

dall Joint One ( i ) Regan ball joint typeCR-1. 20 degree angle

Ram kreventera Two (2) Came' n type "U" double 16V. in., 10.000 psi w p.

Annular Preventers Two (2) Hydrii GL. 16V. in.. 5,000 psi w p., two (2) Vetco H4.16V. in . 10.000 psi hydraulic connector

B.O.P. Control System .. .Koomey 36240-3S air and electric powered

Television Hydro Products undorwater pan and tilt television

Choke and Kill System ...McEvoy. 10.000 psi dual choke and kill maniloid with McEvoy valves, two (2) manually adjustable and two (2) remote controlled chokes

B.O.P. Slacr atorage Stored on guidetrac* system on derrick floor

Auxiliary Equipment Accommodations Air-conditioned quarters for 163

persons, hospital for 6 persons, galley and messroom facilities

Cranea Two (2) Bucyrus Erie MK-35 cranes. 35-tons at 20 ft. radius, with 80 ft booms; two (2) Bucyrus Erie MK-60 cranes. 47 tons at 25 ft radius, with 120 ft. booms

Helicopter Deck 90 ft x 92 ft. to accommodate SikorskyS-61 helicopter. 2,000 gal refueling system

Navigation Equipment Complete high seas navigation equipment, environmental motion and monitoiing system and data recording

Communication Equipment Radiotelegraph (SOL- . Station

System), mam SSB radn-.eiephone. marine VHF-FM radiotelephone, ships dial telephone system, sound powered telephone, P.A. system

Water Distillation Units . . .Two (2) Nirex units rated at 600 GPH each

Lifesaving Equipment Two (2) each, 42 and 64-person diesel powered lifeboats; two (2) each. 25 and 15-person life rafts, 215 life jackets with whistle and water activated lights

Firefighting Equipment . . .F ixed CO, fire extinguishing system in engine, paint, and boiler room, portable fire extinguishers and hydrants throughout ship

OUTBOARD PROFILE

1

i

MAIN DECK

*n—iLi H K.iS r-i .....

MACHINERY DECK

DISCOVERER 534

WELL PRESSURE CONTROL EQUIPMENT

DISCOVERER 534

WELL PRESSURE CONTROL EQUIPMENT

DIVERTER AND FLOW LINE SYSTEM

Manufacturer

Type:

Housing I.D.

Diverter Size

Pressure Rating

Flowline Dia.

B a l l Joint Type

Huhges Offshore

KFDS

47" (Nom 49%")

24" Nom

500 PSI

14" Nom

DR-1

The following sketch shows the flow l i n e arrangement.

DISCOVT "R 534 DIVERTER AND FLO IE ARRANGEMENT

i

BOP AND LMRP

Specifications:

"Rams:

Brand

Pressure Rating

ze

Quantity

"Annulars:

Brand

Pressure Rating

Size

Quantity

"Wellhead Connector:

Brand

Model

Siz*

Pressure Rating

Quantity

"Riser Connector:

Brand

Type

Model

Size

Pressure Rating

Quantity

NL Shaffer SL Poslo~k

10,000 PSI

18-3/4" Double Ram

2 Each

NL Shaffer Spherical

5000 PSI

18-3/

2 Each

Vetco

H-4

18-3/4"

10,000 PSI

1 Each

Vetco

High Angle Release

H-4

18-3/4"

10,000 PSI

1 Each

BOP AND LMRP (Continued-

"Flex J o i n t :

Brand

Size

Quantity

Vetco

18-3/4'

1 Each

"Choke and K i l l Valves

Brand

Model

Size

W.P.

McEvoy

EDU

3-l/16 H

10,000 PSI

•Choke and K i l l Hosec

Brand

W.P.

Coflexip

10,000 PSI

"Control Pods

Brand

Size

Valvcon (Hydrii)

56 Line

Working from the bottom up, the BOP stack consist of the Vetco wellhead connector, a set of double ram BOPs containing 5" pipe rams i n both c a v i t i e s , another set of double ram BOPs with 5" pipe i n the lower c a v i t y and b l i n d shear rams i n the upper c a v i t y , a spher :cal BOP, and a high angle release mandrel to match the LMRP connector. The LMRP consist of the high angle release connector, a spherical BOP, and a fl e x j o i n t w i t h a r i s e r adaptor.

The stack has a t o t a l of 4 o u t l e t s , each with double valves. The lowest i c below the lowest ram. The next higher one i s below the second ram from bottom and the next one up i s below the shear rams which are Ln the top ram c a v i t y . The highest o u t l e t i s below the spherical BOP which i s i n the LMRP and may be used to bleed of a gas bubble trapped under that EOP.

The BOP guide frame i z guideline/guidelineless with retractable pods so that i t can be used guidelineless without damagir-' the pod stabs.

H?S CERTIFICATION

1 Ae D534 we l l c o n t r o l system was b u i l t i n 1975 and a l l piping

f i t t i n g s etc. were i n compliance to NACE standards i n e f f e c t

that time. A l l welding procedures and welders were q u a l i f i e d

to H2S standards.

The new BOP and r i s e r system comr.ly with current NACE

spe c i f i c a t i o n s .

CHOKE AND KILL MANIFOLD:

The choke manifold has two Swaco hydraulic chokes with

separate control panels and two Cameron manual chokes. The 10,000

PSI side has 17 Rockwell (McEvoy) Model E valves of 3-1/16" bore

und the J,000 PSI side has 11 Pockwell valves of 4" bore.

Following i s a schematic and parts l i s t of the choke and k i l l

in-.ni f o l d .

DISCOVERER 534 CHOKE & KILL MANIFOLD

SCHEMATIC

AIR QUALITY INFORMATION

Information required by 30 CFR 250.56-1 is included for the f a c i l i t y described in this Plan of Exploration.

The calculations made under the provisions of 30 CFR 250.57-1(d) indicate that the f a c i l i t y is exempt from further quality review. The information and calculations are attached.

1C6/1702 -(17)

AIR EMISSION CALCULATIONS BLOCKi 6REEN CANVON I62/1S3 RIGl SONAT DISCOVERER 334 TVPEi DRILL SHIP

EOUIPMENT ENGINE R A T I N O I h p l FUEL U S A G E I R / h p h r l HOURS) RUN/DOV FUFL USED (OAL/DflVI OR I L L I N O DAVS PRIME MOVER EMO MD 2 * - E 9 3 6 M « . 3 9 6 2 * 4 8 3 3 . 3 3 6 3 PRIME MOVER EMD MD ? « - E 9 3 6 8 * 8 . 3 9 6 2 * 4 8 3 3 . 3 363 PRIME MOVER EMO MD J J - E 3 MMM • . 396 24 * a - s . 3 3 6 3 PRIME MOVER EMO MO 2 4 - E 9 3C4M a . 3 9 6 2 * * 8 3 3 . 3 3 6 3 PRIME MOVER EMO MD 2 « - E 9 MMM B. 3 9 6 2 * 4 8 3 3 . 3 3 6 3 PRIME MOVER EMD MD 2<d-E9 a . 3 ? * 2 * 4 8 3 3 . 3 363 PRIME MOVER EMD MD 12 -ES i iM a. -a 2". 235<9. S 3 6 3 A U X I L I A R Y CAT 0 3 9 8 T A V - 1 2 8 2 3 • . 3B3 I 4 4 . 9 363

a. a 3 6 3

a. a 363

a. a 363

a. a 363 TRANSPORTATION m a . a 3 6 3

a. a 363

a. a 3 6 3

a. a 3 6 3

TOTA" 32637.at

s n s ) S O N <*ona> " O - ( t o n m i 2 7 . 3 6 2 7 . 3 3 4 ( 3 . M 2 3 . 3 6 2 7 . 3 3 4 1 3 . M 2 9 . 3 6 2 7 . 3 3 4 1 3 . 6 6 2 9 . 3 6 2 7 . 3 3 4 ( 3 . 8 6 2 9 . 3 6 2 7 . 3 3 4 1 3 . 8 6 2 9 . 3 6 2 7 . 3 3 4 ( 3 . 8 6 1 4 . 3 7 1 3 . 3 8 M t . 18

8 . 2 7 8 . 2 6 3 . 8 4 8 . 8 8 8 . 8 8 0 . 8 * 8 . 8 8 B. 8 8 S . M 8 . 8 8 0 . 8 8 8 . 8 8 8 . 8 8 8 . 8 8 8 . 8 8 7 . 6 4 7 . 12 1 8 6 . 9 9 8 . 8 8 8 . 8 0 8 . 8 8 0 . 88 8 . 8 8 8 . 8 8 8 . 0 0 0 . 8 0 8 . 8 0

1 9 9 . 6 6 1 8 3 . 9 3 2 7 9 3 . 2 8

1

• ) CO 3 3 . 0 9 3 3 . 8 9 3 3 . 8 9 3 3 . 8 9 3 3 . 8 S 3 3 . 8 9 1 6 . 8 9

• . 3 1 8 . 0 8 8 . 0 0 0 . 8 0 8 . 8 0 8 . 3 3 0 . 0 0 8 . 0 0 0 . 0 0

9 0 . 0 1 9 0 . 01 9 0 . 0 1 9 0 . 0 1 9 0 . 01 9 0 . 0 1 4 3 . 73

0 . B 4 0 . 0 0 8 . 0 0 0 . 0 0 0 . 0 0

2 3 . 2 7 0 . # 0 0 . 0 0 0 . 0 0

2 2 3 . 3 0 6 0 7 . 9 1

SUMMARY OF EXEMPTION CALCULATION INFORMATION

0 < M l t « a l " E " ( T / y r ) (FROM NEAREST LOND)

PROJECTED EMISSIONS EMISSIONS ( T / V R ) ( - £•»

TSP

SO.

NO.

MC

CO

E - 3 3 . 3D

E - 3 3 . 3 D

C - 3 3 . 3D

E - 3 3 . 3 6

E - 3 4 M D 3 / 3

6 7 . 2

8 7 . 2

8 7 . 2

8 7 . 2

B 7 . 2

2 9 8 3 . 7 6

2 9 8 3 . 7 6

2 9 8 3 . 76

2 9 8 3 . 76

6 6 8 6 8 . «.-.

( 9 9 . 6 6 VES

( 8 3 . 9 3 VES

2 7 9 . 3 . 2 8 VES

2 2 3 . 3 8 VES

( 8 3 . 9 3 YES

A I R EMISSION FACTORS OBTAINED FROM EPA-OP -42 A P P E N D ! ! C SUPPLEMENT 9

Sun Exploration and Production Company, as Operator, believes th is i n ­

formation submitted separately f ron Exploration Plan fo r OCS G 7025/7026

Green Canyon Block 162/163 to be exempt from disclosure. Sun requests

that the data and information enclosed herewith be dispersed for use

only by the United States Government.

Geological information provided includes:

1. Structural maps.

2. Cross Section.

1C6/1702 - (20)

"DATA AND INFORMATION CONSIDERED

EXEMPT FROM DISCLOSURE"

IN THE

EXPLORATION PLAN

OCS 6 7025/7026

GREEN CANYON BLOCK 162/163

FEDERAL OFFSHORE, LOUISIANA

COASTAL LOME MANAGFMENT

CONSISTENCY CERTIFICATION

PLAN OF EXPLORATION

GREEN CANYON BLOCK 162/163

OCS G 7025//026

The proposed activities described ir. detail in this Plan comply with Louisiana's approved Coastal Management Progran and will be conducted in a manner consistent with such programs.

Arrangements have been made with the Stato-Times in Baton i.ouge, Louisiana to publish a public notice of the proposed activities no later than March 20, 1980.

Sun Exploration & Production Company

•J/////-.. H.L. Allen, District Manager

1C6/1702 - (23)

A Shallow Hazard Survey was completed in April 1985. Three copies of this report, are enclosed.

1C6/1702 - (24)

ENVIRONMENTAL REPORT

PLAN OF EXPLORATION OCS G-7025/7026

GREEN CANYON BLOCK 162/163

Sun Explora*ion and Production Company

February 21, 1986

Contact: A. B. Norwood Conservation Manager Sun Exploration and Production Company P.O. Box 1501 Houston, Texas 77251 Phone: 713/531-2158

1C6/1702A

TABLE OF CONTENTS

Page

Title Page i

Table of Contents i1

1.0 DESCRIPTION OF THE PROPOSED ACTION 1

?.0 DESCRIPTION CF THE AFFECTED ENVIRONMENT AND IMPACTS 2

2.1 Physical and Environmental Parameters 2

2.1.1 Commercial Fishing 2

2 1.2 Shipping 2

2.1.3 Small Craft Pleasure Boating, Sport Fishing,

and Recreation 3

2.1.4 Cultural Resources 3

2.1.5 Ecologically Sensitive Areas 3

2.1.6 Existing Pipelines/Cables 4

2.1.7 Other Mineral Uses 4

2.1.8 Ocean Dumping Grounds 4

2.1.9 Endangered/Threatened Species 4

2.2 Socioeconomic Parameters 4

3.0 UNAVOIDABLE ADVERSE ENVIRONMENTAL EFFECTS OF THE

PROPOSED ACTION 6

4.0 GUARANTEE 6

5.0 REFERENCES 7

1.0 DESCRIPTION OF THE PROPOSED ACTION

A "Plan of Exploration" for Green Canyon Area, Lease Block No. 162/163 (Sun Exploration and Production Company, 1986) is being submitted concurrently with th is "Environmental Report" by Sun Exploration and Production Company. Please refer to that report for a description of the proposed exploration ac t i v i t i e s for the referenced lease block. Additional data, required by the "Guidelines For Preparation of An Environmental Report, for Coastal Management Consistency Determination by the States of Alabama, Louisicna, ?nd Green" (U.S.G.S., 1980), is presented in the fol lowing paragraphs.

Sun Exploration and Production Company presently has a support base at Sabine Pass, Texas (approximately 215 miles from the s i t e ) , and an exist ing major mud company f a c i l i t y at Fourchon, Louis**."* {c JX-imately r90 miles from the s i te ) wi l ' i be used for expl''5"?' cr< # u«w -t i es . These f a c i l i t i e s are described *n the explorat1 So new support f a c i l i t i e s or new workers arf- anticipated >S _ i i.f the proposed a c t i v i t y .

Helicopters, work boats, and cr * bofts w u t i l i zed for transporting personnel and supplies tu the are >»i Sabine Pais, Texas and Dulac, Louisiana. A hel icopter w i l t make one to two t r ips dai ly during d r i l l i n g operations. ' ert * boat or supply boat w i l l make one t r i p per day on an average. The route t ra /a i led w i l l normally be d i rect trom tlie base to thp i l r i l : .ng s u e .

A contingency plan for preventing, report ing, and cleaning up sp i l l s of o i l or waste materials i •> presented in che Plan of Explora­t ion (Sun Exploration and Production Company, 1986) I P the section ent i t led "Environmental Safeguards." Addi t ional ly , Sun Exploration and Production Company's Oil Spi l l A ler t Procedure for the Gulf of Mexico is on f i l e with the Minerals Management Service (M.M.S.) of f ices 1n the Gulf of Mexico area.

Calculations of a i r pol lutant emissions are presented in the Plan of Exploration (Sun Exploration and Production Company, 1986). A l i s t of d r i l l i n g mud materials to be u t i l i z e d is also presented 1n that report, along with the project v i c i n i t y map.

There w i l l be no o'her new or unusual ac t i v i t y associated with the project.

(1)

2.0 DESCRIPTION OF THE Al i . ~LC ENVIRONMENT Af." IMPACTS

A description of the effected ervlronriient in the area of Green Canyon Block 162/163, Ir presented in the "Final Regional En­vironmental Imp ct Statement, G^lf of Mexico" ( U . ' . D . ! . , M.M.S., !°R3). Please refer tc that decumant where aodit iunal data for th« project area is require .. The f< owing sections contain « br ief summary of the physical, e vironmentaI, and socioeconomic parameters of the area.

2.1 Physical and Fnvironmental Parameters

2.1.1 Commercial Fishing

Fisheries resources provid.* a viable industry in the Guli of Mexico, with 3 1979 value of $530.1 m i l l i on (U.S.D. I . , 1981). The major f ish ing ports near the lease block are Dulac-Chsuvin and Cameron, Louisiana. The f isher ies nf the Gulf of Mexico j re dominated by estauHne associated shell f isher ies* shr1mpf crab, and oysters (with smaller amounts of clam and sca l lop : ) , Tho western C 1 f shrimp fishery is comprised mainly of brown and white shrimos. Louisiana contributes nearly half the oysters harvested ir ' - Gulf annually. The major f in f isher ies in the western Gulf ar< for industr ia l f ishes, with menhaden dominating in the area f r c Green through the area o f f Galveston, Texas (U.S .D. I . , 1978).

In Louisiana, shrimp (pr imar i ly brown and whit . j) constitutes the most important f i shery , followed by menhaden and oyster f ishery. Shrimp and oysters are estuarine associated species and are centered on the mud and sand bottims o f f the coast of Louisiana. Menhaden occur 1n the shallow waters, with about 93 percent of this f ishing occurring within 10 miles of shore. Green Canyon Area, Block 162/163 1s lo ­cated approximately 80 miles from land. Due to th is distance, i t 1s unlikely that operations w i l l in ter fere with commercial f i sh ing.

2.1.2 Shipping

Gulf shipping 1s both intercoastal and international, with barges and supertankers competing for harbor and river space. In the open Gulf, ships have to compete with barges, fishing vessels, oil and gas platforms supply boats, and recreational vessels; however, accidents are rare and safety fairways are well known. A more detailed descrip­tion of shipping in the area is presented in Section I I . C.I.E., Transportation, pages Ii-57 throuoh 11-64, of the final EIS for Lease Sale No. 51 (U.S.D.I., 1978),

The pcssibility that a ship will collide with the facility is minimal, since the facility ar.d associated activities i 11 be located

(2)

outside of fairways and t rans i t lanes. Green Canyon Area, Block 162/163, is located approximately 12 miles from the nearest fairway (U.S.D. I . , M.M.S., 1983).

2.1.3 Small Craft Pleasure n oa t i ng . Sport Fishing, and Recreation

The northern Gulf of Mexico coastal zone is a major recreational area for saltwater f ish ing and beach-oriented ac t i v i t i e s . Shel l f ishing and small boat pleasure boating are also major recreational a c t i v i t i e s . Boats 16 feet or greater are potent ia l ly capable of venturing offshore.

2.1.4 Cultural Resources

There are no known cul tura l resources in the area of the proposed s i te and the potential for occurrence of cul tural resources in the area is low. Lease st ipulat ions do not require an archaeological survey to be performed; however, a geophysical survey performed in Ju ly , 1984 (Marine Technical Sources, Inc. 1984) did not indicate any anomalies in the area.

2.1.5 Ecologically Sensitive Areas

The Gul f of Mexico coastal zone includes publicly owned areas such as naticnal seashores, parks, beaches, and w i l d l i f e lands, as well as specially designated preservation areas, sjch as h is to r i c and natural sites and landmarks, wilderness areas, w i l d l i f e sanctuaries, and scenic r ivers . Ac t i v i t ies in the area of the proposed s i te are regulated by Louisiana's Coastal Zone Management Program. A more detailed description of parks and refuges in the Gulf area is presented in the f inal EIS for Lease Sale No. 51 , Section I I . C L E . (1 ) ; how­ever, there are no parks or refuges in the v i c in i t y of the proposed ac t i v i t y and the proposed ac t i v i t y is not expected to a f fect such an area.

Lease Block 16<.'/163 is located approximately 80 miles fron shore. Due to this distance, routine operations w i l l not a f fect Louisiana's sensitive coastal areas. I t is also unl ikely that a blowout or o i l sp i l l would occur which would reach these sensitive areas. In the event of a non-routine incident, such as a blowout or an o i l s p i l l , p r io r i t y w i l l be given to protection of sers i t ive areas.

The hard bottom area nearest Green Canyon Area Lease Block 162/163 is Diaphus Bank, approximately 23 miles from the Block, (U.S.D. I . , M.M.S., 1983). Routine operations are not l i ke ly to af fect th is bank. In the event of a blowout or o i l s p i l l , p r i o r i t y w i l l be given to pro­tection of these banks.

2.1.6 Existing Pipelines/Cables

There are no known pipelines in this block.

2.1.7 Other Mineral Uses

There are no known mineral deposits of commercial importance within the lease block and potential is low for impacts to mining activities occurring outside the lease block.

2.1.8 Ocean Dumping Grounds

There are no known ocean dumping sites in the area of the proposed site. 2.1.3 Endangered/Threatened Species

Several federally designated endangered species occur, either on a permanent or transitional basis, within the region of Green Canyon Block Mo. 162/163 (U.S.D.I., 1979). These species include the sei, f i n , blue, right, and sperm whales, which occur in the central and western Gulf of Mexico. The red wolf may be found along the Gulf coast in Chambers and Jefferson Counties, Texas, and Cameron and Vermilion Parishes, Louisiana. Additionally, populations of whooping cranes, bald eagles, brown pe". .cans, Attwater's prairie chickens, American alligators, and Kemp's Ridley sea turtles are known to nest in the coastal areas of the western Gulf of Mexico.

The potential for impact from this project on these endangered species is low, since the proposed activity will take place approxi­mately 77 miles from shore. In the event of a non-routine incident, such as a blowout or oil s p i l l , priority will be given to the protec­tion of any endangered species in the area.

2.2 Socioeconomic Parameters

Economic activity in the Gulf coastal area is dependent upon its abundance of natural resources, including oil and gas and support industries, commercial fishing, and recreation and tourism. Major transportation systems, such as the Green River, are the basis for port activity, which is significant to local, regional, and national economies. A more detailed description of the socioeconomic environment is presented in Section III.C. of the final EIS for Lease Sales A66 and 66 (U.S.D.I., 1980).

(4)

No expansion of the existing shore base fac i l i t y is expected as a result of the proposed activities. Additionally, there will be no new employment as a result of the proposed activities.

(5)

3.0 UNAVOIDABLE ADVERSE ENVIRONMENTAL EFFECTS OF THE PROPOSED ACTION

Unavoidable adverse effects of the proposed action will be minimal. They can be summarized as follows:

(1) the normal and routine activities of oil and ̂ as explor­ation and development operations will pvoduue nu signi­ficant long-term adverse environmental e'ft-tS, although 1n a few instances (pipeline construepon, muds and cuttirgs disposal, etc.), short-term local adverse effects, such as an increase in air emissions and water turbidity during d r i l l i n g operations, may result; and

(?) non-routine incidents, such as blowouts and oil spllis, may produce significant and longer-term adverse effects, depending on the location and size of the incident, but the likelihood of such an incident occurring in or near an area where the effects would be significant (in shal­low water, near a shore, in wetland, etc.) is statis­tically very small.

The proposed project will help to meet current energy demands without continued dependence on foreign imports. Because i t will contribute significant beneficial energy needs and economic gains for the United States, with only a negligible sclverse effect on the environment, Sun Exploration and Production Ccmpany believes the project is justified aid should be approved as proposed.

4.C GUARANTEE

The proposed activity will be carried out and completed with the guarantee of the following items:

(1) the best available and safest technologies will be u t i ­lized throughout the project. This includes meeting all applicable requirements for equipment types, general project layout, safety systems, and equipment and moni­toring systems;

(2) a l l operations will be covered by a M.M.S.-approved oil spill contingency plan; and

(3) a l l applicable Federal, State, and local requirements regarding air emissions and water quality and discharge for the proposed activities, as weT. as any other permit conditions, will be complied with.

(6)

5.0 REFERENCES

Leipper, D. F. 1954, Physical oceanography of the Gulf of Mexico. In: Gulf of Mexico, its origin, waters and marine l i f e . P. S. Galtsoff (ed.). Fishery Bulletin 89. Fish and Wildlife Service, U. S. Dept. of the Int., Washington, D.C. 55: 199-138.

MTS 1985 A Geophysical Survey Report, Green Canyon Area, Block 162/163, Offshore Louisiana, OCS-G-7025/7026.

Sun Exploration and Production Company. 1985. Plan of Exploration, Green Canyon Area, Lease Block No. 162/163, March, 1986.

U.S. Departnent of Interior, Bureau of Land Management (U.S.D.I.). 1978. Proposed 1978 outer continental shelf oil and gas lease sale, offshore western ar.d central Gulf of Mexico, OCS Sale #51, draft environmental impact statement. Washington, D.C.

. 1979. Final environmental impact statement; OCS Sale 58. Proposed 1979 OCS oil and gas lease Sale 58: western and central Gulf of Mexico. 2 vols. Washington, D.C. vol. 1.

. 1980. Final environmental impact statement; OCS oil and gas proposed 1981 Sales A66 and 66, prepared by the New Orleans Outer Continental Shelf Office, New Orleans, Louisiana.

. 1981. Final environmental impact Statement; proposed OCS oil and gas Sales 67 and 69; prepared by the New Orleans Outer Continental Shelf Office, New Orleans, Louisiana.

U.S. Department of the Interior, Geological Survey. (U.S.G.S.). 1980. Guidelines for preparing an outer continental shelf environ­mental report for coastal Management Consistency Determina­tion by the States of Alabama, Louisiana and Green, Washington, D.C.

U.S. Department of Interior, Minerals Management Service (U.S.D.I., M.M.S.). 1983. Final regional environmental impact statements, Gulf of Mexico, volumes I and I I . Metairie, Lou1s4**>3..

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