jun - 8 2000 · gulf of mexico, ocs region 1201 elmwood park blvd. new orleans, la. 70123-2394 ms...

0 1 In Reply Refer To: MS 5421 May 24, 2000

Ms. Lisa Marie Forcenergy Inc Three Lakeway Center, Suite 2300 3838 North Causeway Boulevard Metairie, Louisiana 70002

Dear Ms. Marie:

We have completed our review of the assignment executed on April 27, 2000, submitted to convey pipeline right-of-way grant OCS-G 10088 from Forcenergy GOM Inc. to Forcenergy Inc. According to the records of this office, the right-of-way grant was relinquished effective September 10, 1999. Therefore, the assignment is returned, unapproved.

If you have questions or require further assistance, please call me at (504) 736-2613.

Sincerely,

Mary H. Holmes Land Law Examiner Adjudication Unit

Bc^502-0I, OCS-G 10088, M£5232^) Y. Clark/N; TeHder, MS 5421

MHHolmes:5/24/00:c:\notes\10088-return

RECEIVED

JUN - 8 2000

FIELD 0 OPERATIONS ^

Forcenergy Inc

October?, 1999

Mr. Donald 0. Howard Regional Supervisor - Field Operations United States Department of the Interior Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394

Attn: Mr. J. R. Hennessey MS 5232

RE: Pipeline Abandonment Segment No. 8397 / ROW OCS-G-10088 From: SM79 - B Platform (OCS-G-7704) To: SM77 - 30" SSTI (OCS-G-7703)

Gentlemen:

^ R E C E I V E D ^ ^

Ooi 12 1999

FIELD .. JRATTOUM

Please be advised that Pipeline Segment No. 8397 (ROW OCS-G-10088), from Forcenergy's SM79 B Platform (OCS-G-7704) to SM 77 30" SSTI (OCS-G-7703) was permanently abandoned in place, as permitted and approved on September 20, 1999.

Please contact the undersigned at (504) 846-4314 if you have any questions or require additional information.

Sincerely,

FORCENERGY IN

Gregory L Ruiz, P.E. Construction / Facility Engineer

:ddm

M:\Regulatory\SM79\PL ABANDONMENT SEG 8397.doc

HEADQUARTERS Forcenergy Center 2730 SW 3rd Avenue Suite 800 Miami, Florida 33129-2356

TELEPHONE 305/856-8500 FAX 305/856-4300

REGIONAL OFFICE Three Lakeway Center TELEPHONE 3838 North Causeway Boulevard 504/838-7022 Suite 2300 FAX Metairie, Louisiana 70002 504/838-7017

BEST AVAILABLE COFY s/utf39f I n Reply Refer To: MS 5232 SEP 1 0 1999

Mr. S t i g Wennerstrom Forcenergy G.O.M., Inc. Three Lakeway Center 3838 North Causeway Blvd., Suite 2300 Metarie, LA 70002

Dear Mr. Wennerstrom:

Pursuant t o 30 CFR 250.1000(b), the relinquishment of the right-of-way grant associated w i t h the f o l l o w i n g p i p e l i n e i s hereby accepted e f f e c t i v e September 3, 1999:

Pipeline Segment No.

8397

Size (inches)

8 5/8

Length (feet)

(Right-of-Way OCS-G 10088)

Service From

16,813 Gas Platform B Block 79 South Marsh Isl a n d Area Lease OCS-G 7704

1^

A 30-inch SSTI Block 77 South Marsh Is l a n d Area Lease OCS-G 7703 Segment No. 1288

Your l e t t e r dated September 1, 1999, requests approval t o permanently abandon i n place approximately 16,813 feet (3.18 miles) of 8 5/8-inch p i p e l i n e designated as Segment No. 8397, and t o r e l i n q u i s h i n i t s e n t i r e t y , Right-of-Way Grant OCS-G 10088 associated t h e r e w i t h .

Pursuant t o 30 CFR 250.104(b), approval i s hereby granted t o abandon t h i s p i p e l i n e , and i n accordance w i t h 30 CFR 250.1009(c), the requirement t h a t the p i p e l i n e be removed i s hereby waived. However, i n the f u t u r e , should i t be determined t h a t t h i s abandoned p i p e l i n e c o n s t i t u t e s a hazard t o navigation or commercial f i s h i n g operations or unduly i n t e r f e r e s w i t h the other uses of the Outer Continental Shelf, Forcenergy G.O.M., Inc. Shall be required t o remove i t .

Forcenergy G.O.M., Inc., s h a l l cease t r a n s p o r t i n g hydrocarbons through t h i s p i p e l i n e immediately and complete the aforementioned abandonment operations w i t h i n 60 days of the date of t h i s l e t t e r . A d d i t i o n a l l y , Forcenergy G.O.M., Inc. s h a l l submit w r i t t e n n o t i f i c a t i o n t o t h i s o f f i c e w i t h i n 30 days of the completion of the p i p e l i n e abandonment. The n o t i f i c a t i o n s h a l l include the date the abandonment was completed and an i n d i c a t i o n t h a t the abandonment was completed as approved.

Sincerely,

(Org.Sgd.) J. R. Hennessey

Donald C. Howard Regional Supervisor F i e l d Operations

bcc: /jJi02-01 Segment No. 8397, ROW OCS-G 10088 (MS 5232) 1502-01 ROW OCS-G 10088(Microfilm) (MS 5033) MS 5232 (Carto)

FPatton:tig:forcenergy.397:9/10/99 OPTIONAL FORM 99 (7-90)

F A X T R A N S M I T T A L # of pages J

From

Dept./Agency Phone* x . , . . , / T

Fax #

NSN 7540-01-317-7368 5099-101 GENERAL SERVICES ADMINISTRATION

Forcenergy Inc September 1, 1999 4 Mr. Donald C. Howard Regional Supervisor, Field Operations United States Department of the Interior Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard, MS 5232 New Orleans, Louisiana 70123-2394

Attn: Mr. Frank Patton

Subject: Reiinquishment of Right of Way #G-10088 and Application to Abandon Pipeline South Marsh Island 79 B OCSG-7709, Segment 8397

Dear Mr. Howard:

Forcenergy G.O.M. Inc., herein applies to the Regional Supervisor for Approval to Relinquish Right of Way # G-10088, and Abandonment of Pipeline Segment #8397.

Regarding the pipeline abandonment in place: • The Abandonment is proposed due to reservoir depletion and the decommissioning

of associated wells and production facilities. • The pipeline will be abandoned in conjunction with the decommissioning and

removal of South Marsh Island 79 B Platform. The work is scheduled for October 1999.

• The length and diameter of Segment 8397 is 16,813' and 8" respectively.

Included in this application is a field map of South Marsh Island 79 B showing pipeline segment 8397, and the proposed pipeline abandonment procedures.

Please contact Pst Kane at (318)-235-2423 cr Greg Ruiz at (504)-838-7022 if you have any questions or require any additional information regarding this application.

[\ (incj jrcenergy G.O.M., Inc.

Stt 3 Wennerstrom President / CEO

SW:ddm

HEADQUARTERS Forcenergy Center 2730 SW 3rd Avenue Suite 800 Miami, Florida 33129-2356

TELEPHONE 305/856-8500 FAX 305/856-4300


Forcenergy Inc,.

SMI Block 79 Gas Pipeline Segment # 8397

Pigging and Abandonment Procedures

This Project consists of 16,813 feet of 8 inch Pipeline, Riser to Sub Sea Tie-in to be abandoned in place. One Four-Point Diving Support Vessel (DSV) will be used in the pigging and abandonment procedure. The DSV will be used to support the Diving Personnel and will have all the necessary equipment for excavation, pipeline cutting, plugging, burial, flange and riser work. The Platform is owned and operated by Forcnergy. There is a crane however it will not reach the work site.

1.1) Diving Support Vessel

1.1.1) Set up on sub sea tie in site (approx. 152 few) utilizing survey/ positioning services and Company provided coordinates.

1.1.2) Locate and excavate subsea tie-in.

1.1.3) Ensure that 12" tie-in valve adjacent to 30" by 12" side tap is in the full open position.

1.1.4) Close 8" ANSI 600 # valve and reopen 25%.

1.1.5) Lock open 8" ANSI 600 Check Valve.

1.1.6) Stand by for notification from platform that pig has spiked pressure and is at the valve.

1.2) Pump Crew

1.2.2) Set up at South Marsh Isl. 79 "B".

1.2.3) Close 8" valve at top of riser where riser penetrates deck at meter skid.

1.2.4) Close next 8" valve up stream.

1.2.5) Remove 4" blind flange located out board of 4" valve up stream from valve closed in step 1.2.3.

1.2.6) Open 4" valve to ensure 8" by 12" "T is free of pressure. Remove T .

1.2.7) Install 8" pig launcher and connect to high pressure pumps.

1.2.8) Open 8" ball valve at top of riser.

1.2.9) Run pigs with inhibited seawater using high pressure pumps with flowmeter to monitor volume.

Forcenergy Inc.

SMI Block 79 Gas Pipeline Segment # 8397


1.2.10)Stop pumping when pressure spikes or when 4,187 gallons have been pumped.


1.3.1) Close 8" sub sea tie in valve and release check valve.

1.4) Pump Crew

1.4.1) Bleed pressure down on pipeline through pig launcher fittings.

1.4.2) De-rig high-pressure hose and remove pig launcher.

1.4.3) Demobilize Pumping Crew.


1.5.1) Close 12!jnain valve opened in step 1.1.3.

1.5.2) Install Pollution Containment Dome over.81,ANSL„6CW flanges located upstream from 8" valve closed in step 1.3.1. , .

—. ~........... 0jC 1.5.3) Break apart flanges and next_set: of31^?^U600J^nges up stream

(Approx. 2'3") and remove spool piece and recover to DSV.

1.5.4) Insert 8" plumbers plug in the pipeline side of the disconnect. ^

1.5.5) Install 8" ANSI 600 # blind flange on assembly side of disconnect with 1" bleeder valve.

1.5.6) Remove Pollution Dome, de-rig, and clear sub sea work site.

1.5.7) Cover both ends of disconnert with .3:1 cement bags, " " " ^

1.5.8) Cover 12" main valve with sand only; assure 3* of cover over SSTI.

Forcenergy Inc.

SMI 79 Gas Pipeline Segment # 8397


1.5.9) Pick up anchors and relocate DSV to SMI79"B"

1.6) Diving Support Vessel at SMI 79 "B"

1.6.1) Set up at riser.

1.6.2) Break apart set of 8 ' ANSI 600# flanges located at bottom of riser adjacent to clamp on bottom horizontal member.

1.6.3) Excavate down to next set of flanges (approx 5').

1.6.4) Break apart set of 8" ANSI 600# flanges.

1.6.5) Remove spool piece and recovertp DSV.

, • 1.6.6) Install 8" plumbers plug in pipeline end.

1.6.7) Insure 3' of cover on endof pipeline and cover with 3:1 cement bags.

1.6.8) Remove 4' section of riser at El (+) 10' and recover to DSV.

1.6.9) De-rig and De-mobilize Contractor to dispose of all recovered material.

Forcenergy Gas Exoloration Inc.

July 28, 1997

r *" c > RECEIVED " v

« ^13 0199/ v United States Department of the Interior Minerals Management Service Gulf of Mexico, OCS Region 1201 Elmwood Park Blvd. New Orleans, La. 70123-2394 MS 5232

Alin; Ms. Leslie Monahan

Re: Forcenergy Gulf of Mexico, Inc. Operator Code Identification Number Change

Gentlemen:

Forcenergy Gulf of Mexico, Inc. requests to change operator identification numbers on the pipeline segments that were discussed in a meeting with Leslie Monahand and Frank Patton on 6-12-97. The following pipeline segment numbers need to be changed:

///7

Segment No. Size Company

8397 G/OOiV ^ 8" 8 4 1 8 ^ 6" 8572 6" 8573 tf" 8" 9 9 6 9 ^ / ^ ^ 0 ' 4" 9970 & 6"

Please change operator additional information

Great Western Offshore Mark Producing, Inc. Great Western Offshore Great Western Offshore Great Western Offshore Great Western Offshore

Operator Id. # Origin Term. Auth. Length

01187 00659 01187 01187 01187 01187

SMI79-B ' ^ - SMI77-SSTI 770>DOT EC300-A^ft;/

vEC297-A >w.?*TX)I EC283-A £w ^ EC282-A «,fc0 * DOI EC282-A 7**. ^EC297-A DOI SM^-A/'"/'* ' SM11-A itrigz&Qn SMI8-A Art SMI10-SSTI,/// DOT

(0$

16813' 8279' 8965' 21181' 17813' 24392'

code identification number to 1187 Forcenergy Gulf of Mexico, Inc. If you have any questions or require please contact Greg L. Ruiz at (504) 838-7022.

Sincerely,

FORCENERGY GAS EXPLORATION, INC.

Gregory Ltiu^P. E. O ^ . 1 ^ Construction/Facilities Engineer ^

GLR/dly

H E ADQUARIEBS. Forcenergy Center 2730 SW 3rd Avenue Suite 800 Miami, Florida 33129-2237

TELEPHONE 305/856-8500 FAX 305/856-4300


BEST AVAILABLE COPY

In a»piy Hefor Toi MS 523? SEP j o

Great Western Offshore Inc. Attention: Hr. John A. eaoan 1111 Ragby Street, Suite 1700 Houston, Texan 77002-331

Oentleaenj

On Hovssber 19, 1991« representatives froa Tennessee Oas Pipeline Cotapany (TO?), Oepartaent of Transportation's Office of Pipeline Safety, and Hinerals Haaagefient Servioe (M!4S) fwt at the Gulf of Mexico Ragional Office of the HfS to disouss the roaxiaun allowable operating pressure (E4AOP) of TOP'S operated BLU3 HATER PIPKLIJC

As a result of this aeeting and after additional follow-up taeetings, teleoonounioations, and review of the applicable regulations, tbe l?€ has detominod that tbe !U0? of the SLOE WATSS PIPELIN STST3M w i l l he as followsi

1. The :aain trunkline and a l l pipelines feeding into i t between the Ship Shoal Block 193 "COP* atraoture and the Cooodrie, Louisiana plant w i l l he assigned an MAOP of 1,200 psig.

2. The min trunkline and a l l pipelines feeding into i t between the VeralUoii Block 245 •GOP" structure aad the Ship Shoal Block 193 "Ca?" structure w i l l be assigned an MAOP of 1,250 psig.

3. The sain trunkline and a l l pipelines feeding into i t between the Sucona Island Block 3*9 flanged end and the Ship Shoal Slook 138 "GGP" structure v i i l be assigned an MAOP of 1,250 psig.

Pipeline Segment So. 3397» associated with your pipeline right-of-way ^rant OCS-G 10083, w i l l hava an assigned MAOP of 1,250 patg.

Should you hava any questions regardlag this mtter, please ooataot Hr, Autry Britton at (50*) 736-25*3.

Siaoerely,

(Orig. Sgd.) A. Donald Giroir 0. J. Bourgeois Regional Supervisor Pleld Operations

cot Department of Transportation 2320 La Branch, Room 2116 Houston, Texas 77004

bco: (1502-01 P/L OCS-O 10038 (ICFauat) (HS 5232) 1?3?-01 P/L OGS-0 10038 (HS 5033) HS 5280

ABritton?kJfii8/24/92

United States Department of the Interior MINERALS MANAGEMENT SERVICE

GULF OF MEXICO OCS REGION 1201 ELMWOOD PARK BOULEVARD

NEW ORLEANS. LOUISIANA 70123-2394

In Reply Refer To: LE-3-1 OCS-6 10088

Instrument:

Filed : Executed : Approved : Effective:

November 9, 1989 October 4, 1989 March 7, 1990 October 1, 1989

Cliffs Oil and Gas Company Assignor

Great Western Offshore Inc. Assignee

ACTION: ASSIGNMENT APPROVED Right-of-Way

The approval of this assignment i s restricted to record t i t l e interest only, and by virtue of this approval, the Assignee i s subject to, and shall fully comply with, a l l applicable regulations now or to be issued under the Outer Continental Shelf Lands Act, as amended.

Assignor assigned unto Assignee a l l of Assignor's interest.

Record t i t l e interest i s now held as follows:

OCS-G 10088 Blocks 79, 80, and 77, South Marsh Island Area, South Addition

Great Western Offshore Inc. 100%

Refers Pearc Regional Director

cc: Assignor Assignee

V/Case File

ft0

/ / / V??

Great Western Offshore Inc.

l l l l Bagby Street

Suite 1700

Houston, TX 77002 (713) 739-1400

Telecopier (713) 73MI7S

Telex 763919 GWRI HOUST TX

November 6, 1989

Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394

Attention: Adjudication Unit, LE-3-1

Gentlemen:

RECEIVED

NOV 9 1989

Minerals Management Servipe leasing & Environmeot

Re: Right-of-Way OCS-G-10088

We hereby submit three (3) fully executed originals of an assignment of all of Cliffs Oil and Gas Company's 100% interest in Federal Pipeline Right-of-Way bearing Serial No. OCS-G-10088, unto Great Western Offshore Inc.

Also, enclosed is our Check No. 105376 in the amount of $50.00 to cover the filing fee for this assignment.

Please refer to New Orleans Miscellaneous File No. 1072 for Cliffs Oil and Gas Company and No. 1187 for Great Western Offshore Inc. for documents qualifying said parties to hold leases and right-of-way on the Outer Continental Shelf in the Gulf of Mexico.

We request that the above assignment be approved effective October 1, 1989 and that an approved copy be sent to the undersigned.

Very truly yours,

Great Western Offshore Inc.

A. Keenan /rst Vice President/Corporate velopment and Assistant Secretary

JAK/cms 0007 R Enclosures

A Subsidiary of Great Western Resources Inc.

ASSIGNMENT

OCS-G-10088

UNITED STATES OF AMERICA

OUTER CONTINENTAL SHELF LANDS

OFFSHORE LOUISIANA

R E C E I V E D

NOV 9 1989

Minerals Management Servipe LeasiBg&EnWronmeqt

X KNOW ALL MEN BY

X THESE PRESENTS, THAT

X

WHEREAS, under the date of September 12, 1988, the United States

Department of the I n t e r i o r , acting through the Minerals Management

Service, approved an Application for Right-of-Way, submitted by

C l i f f s Exploration Company tvo hundred (200) feet i n width to

construct, operate and maintain an 8.625 inch O.D. pipeline for the

transportation of natural gas and condensate. The pipeline, 3.18

miles in length, crosses Block 79 South Marsh Island Area, South

Addition, Block 80 South Marsh Island Area, South Addition, and

Block 77 South Marsh Island Area, South Addition, Offshore

Louisiana.

WHEREAS, C l i f f s O i l and Gas Company a Delaware corporation,

(ASSIGNOR), is the present owner of the Right-of-Way.

WHEREAS, ASSIGNOR desires to transfer i t s interest i n the Right-

of-Way to Great Western Offshore Inc., a Delaware corporation

(ASSIGNEE).

NOW, THEREFORE, for and i n consideration of the sum of F i f t y

dollars ($50.00) and other good and valuable consideration to i t in

hand paid by ASSIGNEE, the receipt and sufficiency of which are

hereby acknowledged and confessed, ASSIGNOR does hereby transfer and

irector m , 'Effective Date 0 C T 1 1 9 8 9

assiqn its interest in and to the Right-of-Way to ASSIGNEE.

TO HAVE AND TO HOLD said interest unto ASSIGNEE, i t s successors

and assigns, forever, subject to the terms and provisions of said

Right-of-Way and of this Assignment.

IT IS UNDERSTOOD AND AGREED that such transfer shall cause the

ASSIGNEE to assume a l l costs, expenses and other obligations

chargeable under the Right-of-Way to such interest and shall

likewise operate to give and grant to the ASSIGNEE a l l benefits

owing thereunder to the ownership of such interests.

This Assignment shall be effective for a l l purposes as of October

1, 1989, subject to approval thereof by the Minerals Management

Service.

Triplicate Originals this, 4th day of October, 1989.

Cl i f f s Oil and Gas Company

ATTEST:

Executed

By:^/ / "L/ J .[ytacconi

By

ant Secretary W. Weaver Vice President/Operations

ACCEPTANCE OF ASSIGNMENT

Great Western Offshore Inc., Assignee herein, expressly assumes and agrees to discharge a l l duties and obligations arising out of or imposed by and under each and a l l of the terms and provisions of said right-of-way.

WITNESS

Assistant Secretary

Great Western Offshore I n c t

Name J John A. Keenan ^ First Vice President/Corporate

Ti t l e : Development and Assistant Secretary

THE STATE OF TEXAS X

COUNTY OF HARRIS X

BEFORE ME, the undersigned authority, on this day personally appeared W. Weaver, Vice President Operations for C l i f f s Oil and Gas Company, known to me to be the person whose name is subscribed to the foregoing instrument, and acknowledged to me that he executed the same for the purposes and consideration therein expressed, in the capacity therein stated and as the act and deed of said corporation.

GIVEN UNDER MY HAND AND SEAL OF OFFICE, this 4th day of October, 1989.

WilfiE M HAMMER NOTARY PUBLIC State of Texas Comm. Exp. 05-12-93

Notary Public in ; :y Public in and for TKe/State of Texas

Name: Commission Expires:.

THE STATE OF TEXAS

COUNTY OF HARRIS

appeared , the unders

Fi^fMice. Prgsj^eo-f • ,XC. for BEFORE ME, the undersigned authority, on this day personally

flphn R- Ktenan , first Virf. Pr^enj flsrsf• da* for Great Western Offshore Inc., known to me to be the person whose name is subscribed to the foregoing instrument, and acknowledged to me that he executed the same for the purposes and consideration therein expressed, in the capacity therein stated and as the act and deed of said corporation.

GIVEN UNDER MY HAND AND SEAL OF OFFICE, this nAOlmhir , 1989.

M L day of

m CARMEN It MfVnZ Notary Public in and^Kor The State of Texas

Name: Commission Expires:

February 26, 1990

UNITED STATES

DEPARTMENT OF THE INTERIOR

MINERALS MANAGEMENT SERVICE

DATE BEST AVAILABLE COPY

OCS-vi 10088, PL Assignment -PARENT SERIAL NUMBER

Blocks 79, 80 and 77, Soul APPLICANT:

"Great Western Offshore Inc. l l l l Bagby Street, Suite 1700 Houston, Texas 77002

arsh Island Area. Soutii Addition SUBJECT REMITTER IF DIFFERENT THAN APPLICANT:

PURPOSE FUND SYMBOL AMOUNT

FILING FEE EARNED 140850 (17) 00

ADVANCE FILING FEE AND/OR RENTAL 14X6800 (17)

ONE-FIFTH BONUS 14X6875 (17)

FIRST YEAR'S RENTAL

FOUR-FIFTHS BONUS

. — 1

TOTAL $50 ao

heck No. 105376, dated 11/0/89, Texas Commerce 3ank, H.A., San Angeio, Texas

REMARKS.

-BY- DATE

DO NOT ACCEPT THIS COPY AS A RECEIPT

CASE FOLDER COPY

FORM MMS-362 (SEPT. 1983)

Cliffs O I L A N D G A S C O M P A N Y 300 CITICORP CENTER HOUSTON, TEXAS 77002 (713) 651-9426

April 4, 1989

United States Department of the Interior Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Blvd. New Orleans, Louisiana 70123-2394

Attention; Mr. D. J. Bourgeois Regional Supervisor

RE:

RECEIVED /' ,

APRO 71939 FIELD

% OPERATIONS ^ / C n OCS Reg1

- Field Operations

FO-2-2 Right-of-Way Number

Gentlemen:

Reference is made to your letter of March 30, 1989 regarding the above referenced right-of-way number. As of March 1, 1989, Great Western Oil and Gas Inc. became Operator for South Marsh Island, South Addition, Block 79, Platform "B". In the future, please direct all correspondence to Great Western, their address is l l l l Bagby, Suite 1700, Houston, Texas 77002.

Your cooperation in this matter ff greatly appreciated.

Very truly yours,

CLIFFS OIL AND GAS COMPANY

FT Weaver General Manager

CWw:kb

United States Department of the Interior

MINERALS MANAGEMENT SERVICE T B GULF OF MEXICO OCS REGION

1201 ELMWOOD PARK BOULEVARD NEW ORLEANS, LOUISIANA 7012S-2394

In Reply Refer To: FO-2-2 M A R 3 Q 1989

C l i f f s Oil and Gas Company APR 1 lopq Attention: Mr. C. W. Weaver 1 0 3

300 Citicorp Center 0PERAT/0N<? ntr^r Houston, Texas 77002 u^rT.

Gentlemen:

In accordance with 30 CFR 250.158(b), your letter dated November 22, 1988, transmitted a pipeline construction report for the following right-of-way pipeline:

Pipeline Right-of-way Size Length Number (inches? (feet') Service From TO

OCS-G 10088 8 5/8 16,814 Gas and Platform B 30" SSTI Condensate Block 79 Block 77

South Marsh Island South Marsh Island Area, South Addition Area, South Addition

The data which you provided indicates the following test information and establishes the assigned maximum allowable operating pressure (MAOP) for this pipeline:

Pipeline Right-of-way Test Pressure Duration MAOP MAOP Number (psig) (hours) (psig} Determination

OCS-G 10088 2,160 8 l,kk0 Receiving Pipeline

The total length of the "as-built" pipeline right-of-way is 3.18 miles.

In future correspondence, please refer to the above pipeline by its assigned right-of-way number.

Sincerely yours,

f D. J. Bourgeois Regional Supervisor Field Operations

BEST MWLABU COM

In Reply Refer To: FO-2-2

SAJ /

m 30 m

C l i f f s Oil and Gas Company Attention: Mr. C. W. Weaver 300 Cltioorp Center Houston, Texas 77002

Gentlemen:

In aoeordance with 30 CFR 250.158(b), your l e t t e r dated November 22, 1988, transmitted a pipeline oonstruotion report for the following right-of-way pipeline:

Pipeline Right-of-way Size Length Number (inohes) (feet) Servioe From To

OCS-O 10088^ 8 5/8 16,814 Gas and Platform B 30w SSTI Condensate Blook 79 Block 77

South Marsh Island South Marsh Island Area, South Addition Area, South Addition

The data which you provided indicates the following test Information and establishes the assigned maximum allowable operating pressure (MAOP) for this pipeline:

Pipeline Right-of-way Number

Test Pressure (psig)

Duration (hours)

MAOP (psig)

MAOP Determination

OCS-Q 10088 2,160 8 1,440 Receiving Pipeline

The total length of the "as-built" pipeline right-of-way is 3.18 miles.

In future correspondence, please refer to the above pipeline by i t s assigned right-of-way number.

Sincerely yours.

(Orig. Sgd.) A. OonaW Giroir

D. J. Bourgeois Regional Supervisor Field Operations

bcc: L1502-01 OCS-G 10088 (w/orig report) (FO-2-2) (K. Faust) 1^02-01 OCS-G 10088 (FO-2-2) LE-3-1

OPS-6 (w/cy of location plat)

SDessauer:lr:3/30/89:LEXITTPE Disk 4

1/

Cliffs O I L A N D G A S C O M P A N Y 300 CITICORP CENTER HOUSTON, TEXAS 77002 (713) 651-9426 R E C E I V E D '

ZS 1038 November 22, 1988 \ ^ F,ELD

OPERATIONS

Mr. Darnel J. Bourgeois Regional Supervisor Office of Field Operations U. S. Department of the Interior Minerals Management Service 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394

Attention: Mr. Autry Britton FO-2-2

RE: 8-5/8" Natural Gas and Condensate Riqht-of-Pipeline (OCS-G 10088) Blocks 79, 80 and 77, South Marsh Island Area, Offshore, Louisiana

Gentlemen:

Reference is made to that certain application pertaining to the installation of a 8-5/8" natural gas and condensate pipeline to transport production from Cliffs Oil and Gas Company's Platform "B" in Block 79 to a subsea tie-in point with Tenneco's existing 30" pipeline in Block 77, South Marsh Island Area, Offshore, Louisiana.

In accordance with regulations contained in Title 30 CFR 250.158(b), please be advised that installation of the subject pipeline was completed on October 27, 1988 with date of first operations on November 11, 1988. Enclosed in triplicate are copies of the "as-built" location plat and hydrostatic test pressure data.

Should you have any questions or requests for additional information, please contact the undersigned at your convenience.

Sincerely,

C. W. Weaver General Manager

CWW:JAC:CJG Enclosures

BEST AVAILABLE COPY

CALIBRATION CERTIFICATE 4 . 1 • 198

#7

MAKE: Barton SERIAL NUMBER: 242-1U48

PRESSURE RANGE: 0-5,000psi CALIBRATED TQ MANUFACTURER'S SPECIFICATIONS

DATE OF CALIBRATION: Aueust 12. 1988 INSPECTOR:

This is to certify that this instrument has been inspected and tested against Pressure Standard Chandler

Engineering s/N 19866 traceable to the National Bureau of Standards, traceablllty reference

P-7223 Fi le 221:07/2210607 ACCURACY: 0.02%

TEMPERATURE: ZO HUMIDITY: 131

NTILL INSTRUMENT

RENTALS, SALES, REPAIRS

4446 SOUTHDOWN MANDALAY HOUMA, LOUISIANA 70360

TELEPHONE: BUS. 504/876-1695 504/851-6189

mOFESSKJNAl. PRMTMQ •SS6

!FST AVAILABLE COPY

CALIBRATION CERTIFICATE

MAKE Chandler SERIAL NUMBER 19134

PRESSURE RANGE 50-3.000PS1

DATE OF CALIBRATION October 11. 1988

CALIBRATED TO MANUFACTURER'S SPECIFICATIONS

INSPECTOR

ss m n n u m w i writ

This is to certify that this instrument has been inspected and floated against Pressure Standard Chandler

Kng-tnefering S/N 19866 traceable to the National Bureau of Standards, traceablllty reference

P-7223 Fi le : 221:07/2210607

NTILL INSTRUMENT



TELEPHONE: BUS. 504/876-1695 504/851-6189

PROFESSIONM. PRINTING. INC. #540Z

BEST AVAILABLE COPY

CALIBRATION CERTIFICATE N? 293

MAKE Barton SERIAL NUMBER: 242E-33054

PRESSURE RANGE: 0-3 .000PS1

DATE OF CALIBRATION: October 11. 1988

CALIBRATED TO MANUFACTURER'S SPECIFICATIONS

INSPECTOR: _

This is to certify that this instrument has been inspected and tested against Pressure Standard chandler

Engineering s/N 19866 traceable to the National Bureau of Standards, traceability reference

P-7223 Fi le 221:07/2210607 ACCURACY: 0.02%

TEMPERATURE: 781F

NTILL INSTRUMENT


_ HUMIDITY: 72%


TELEPHONE: BUS. 504/876-1695 504/851-6189

PROFESSIONAL PRMTMG #896

/ T h e following Infonnation is to be f i l l ed out for each pursuant hydrostatic test on the pipeline

Pressure Recorder: Manufacture^

Dead Weight Guage Manufacturer_

F i l l Pump :Manuf acturer/Type____

F i l l Pump: Located At

Barton

Chandler

_Serial No. 21*2-1111*8

Serial No. 1913U

Pressure Pump: Manufacturer/Type:.

Pressure Pump Located at

Temperature Recorder:_

Test Pressurei 2160

Barton _5erial No. 2U2E-.3305U

F i l l Started: Time/Date:.

_P.S.I.G. at Purapj

Completedt

Test Started! Time/Datei_22t5_JQllkM

Pressure: oKn Ambient Temperature:

Pipe Temperature: 7U0

Test H ™ , ^ * * . ^ ofiy> 10/1^/88

Ambient Temperature:

Pipe Temperature: 75°

Pressure: J>1gfi

Time Dead Weight Reading

221"? 9160 --7U--. i— 7li 0 t 231'? 2i«;8

--7U--. i— 7li 0 t Tli-

nuc; 2158 7U0

0215 7U0

0315 21^6 7U0

2156 75° . . - .„_ .0515...

0615 2156 2156

... — . 75° " ' 75°

— .. _ — .. _ •

BEST AVAII ARIF COPY

Air Temp., Pipe Temp., Pressure

•" 4 '*•«;. • • " •Xi-.:.

4 T ' •

;. I'-

MARK PRODUCING INC

OCS-G - 7703

X* l t a2l ( 785.00 ' B/L Y= -34,252.96

r.GR 30hp/L

• H .

TIE -

K» l ,e2 l ,2S9 .00 ' Yt - S 3 . 9 2 l . 0 0

LOl 28 0 34 ' 19.924"N Long 9 1 0 53* 23. 698 "W.

§

3

Y » -40 .000

X» 1^24,476,76 ' 6/L Y* -36 ,074 .67

CLIFFS EXPLORATION CO.

OCS -G - 7704

< UJ cr <

2

X in

<

X

I -O

< UJ a: <

CO

UJ

UJ

o Z) U l

244

245

- NOTE -

ALL COORDINATES SHOWN ARE BASED ON THE

LOUISIANA (Lomb«r») PLANE COORDINATE

SYSTEM, SOUTH ZONE

CERTIFIED CORRECT AS TO HORIZONTAL

POSITION OF AS BUILT PIPELINE

Registered Land Surveyor No. 4335 Slate of Louiflana John E. Chance ft Associa1esT lnc t Prepared For P.L.U.S,

SLK 79 H

PT.

20

21

22

23

24

25

26

27

21

30

31

S3 33

mm

1 ,826 .552

.B26 .779

1 ,827 .021

1 .827 .264

1 .827 .524

. 8 2 7 , 8 5 5

1 ,828 ,250

. 8 2 8 , 5 9 8

1 .828 .834

1 . 8 2 9 . 0 7 5

1 .829 ,317

1 .829 ,507

. 8 2 9 . 6 5 2

1 .829 ,711

I . 8 2 9 , 8 0 2

I . 8 2 9 . 7 7 5

1 .829 .751

1 .829 .700

1 . 8 2 9 . 5 9 3

1 . 8 2 9 . 4 4 5

1 . 8 2 9 . 2 5 5

t . 8 2 9 , 0 1 6

1 . 8 2 8 . 7 0 9

I . 8 2 8 . 5 6 9

1 , 8 2 7 . 7 4 1

1 ,826 .915

1 . 8 2 6 , 0 6 8

t .825 .283

I . 8 2 4 . 4 4 0

1 ,823 .643

I , 8 2 2 , 8 0 2

1 ,821 .971

1 ,821 ,768

1 ,821 ,551

t . 8 2 1 . 2 9 9

- 4 4 . 4 9 6

- 4 4 . 6 1 5

- 4 4 » 6 7 5

- 4 4 , 6 42 .

-44,463 +f

- 4 4 , 3 2 5

44,150

4 3.939

•43 ,725

43.534 -

- 4 3 . 1 » 3 .

- 4 2 . 8 2 7 /

- 4 2 , 4 4 5

-42.048 ^

- 4 1 . 2 6 4

- 4 1 . 0 7 0

- 4 0 . 6 8 3 .

- 4 0 . 3 0 6

- 3 9 . 9 4 4

- 3 9 . 5 9 9

- 3 9 . 2 8 1

- 3 9 . 0 2 6

- 3 8 . 8 7 2

- 3 8 . 3 1 0

- 3 7 . 7 4 4

- 3 6 . 5 9 1

- 3 6 , 0 5 0

- 3 5 . 4 4 2

-37.184 S

y y V

- 3 4 , 8 7 1

- 3 4 . 3 5 1

- 3 4 , 2 4 4

- 3 4 , 1 2 1

- 3 3 . 9 2 1

V

Sf RECEfVED

i;ov FIELD

nc 1*0$

CLIFFS OIL AND GAS COMPANY

AS BUILT 8" GAS PIPELINE

BLOCK 7 9 TO BLOCK 77

SOUTH MARSH ISLAND AREA

GULF OF MEXICO

JOHN E CHANCE & ASSOCIATES, INC CJVIL ENGINEERS & L ANO SURVEYORS

LAFAYETTE, LOU'SlANA

DATE OCT. 2B t 1988

JOB NO. 6 8 - 14 04

MAP NO. 1346- B

'Ml,

!'BEST AVAILABLE COPY • • PIPELINE INSPECTION CHECK LIST

Date of Inspection:

Lessee/Operator: C 1 \ Vf^ O [G> Xff >

MMS Inspector: iS>, ( &Ci€\

Segment No.: C~> I f j ^ ^ '

From:' ^ f l ^ ~7 fi> ' •

Company Contact: j p f N W - Q ^

Contractor: Barge ID

Barge or Platform:. Location

m/wu To: S < T

i •< ' I

Size: M

Grade: Mi —

Seamless:

PIPELINE CONSTRUCTION/SPECirICAT10NS

Coating:

Pipeline Crossing & Clearance: I ,'('•. Existing Plpel1ne(s) Bouyed: '•li' T" Length:

r.r

Wall Thickness:.

Anodes:

type:

No.:

.Weight:

Spacing:

Burial Depth:

Valves/Taps Cover:

•I'i

t! 'l.M

IITP DATA

(Medium) Hater or Product

Duration Time

Pressure (PSI)

Rati ng:.

Service: I I-t

MINIMUM RATING OF VALVES. FLANGES, FITTINGS AND PRESSURE DATA

Approved MAOP:

1 • ,• Source: - J S ^ ^ - ' t>S^ *j /a o^(?<$U

I : Uell(s), SITP:

Pipeline Flowing Pressure:.

Range

High SensorU):

Low Sensor(s):

PSV:

Setting

Isilow sensor Installed where it could not be Isolated?

| •!;'!;; /• • ' • • !' j l ' 1 • ' . • . RISER PROTECTION

Coating: "R^N-^ (•i'l;.)'. Mater Depth:

Bumper Guard: Splash Guard:

Remarks: '• IVV ' i 7

• 'j' 1 •Vl ..

"BEST AVAILABLE COPY

NOTIFICATION CF PIPELINE INSTALLATION/HTP

REPORT RECEIVED BY

Kaw: A ^ ^ ^ ^ ^ f Date: /f) " ^ f l

Name

REPORT GIVEN BY

Phone:

r7/3) 55 9-66*7. •> Q

Company

PIPELINE INSTALLATION

Date of Installations:

Contractor and Barge No:.

Size of Pipeline:

Service:

Heliport Location:

• From: Structure,

Block

Lease

To: Structure/SSTI.

Block

Lease

Where Construction begiris:'

Length of time barge will be on Job:

District Kotified Date:

Time:

Person Contacted:

Date of Inspection:. Date Inspection Report Received:.

PIPELINE HTP

Date of Test:

Location of Recorder:

Location of Kellport: ^ ^ V > B f t

District Notified Date:.

• Tine:.

Person Contacted:. i i

Date of Inspection:

Remarks:

Date Inspection Report Received:

I

BEST AVAILABLE COPY

" R/W UmSti

Proposed Wp«*na

BLK. 77

R/WUmlU

BLK. 78

Y (-) 34.262.06

Proposed Sub Sea Tlo-bi Sta. 1624«8.09 X 1,821,277.00 Y(- )33.782^0 Lat. 28*34 , 21^0" Long. 01*S3'23.06 < '

BLK. 80

SOUTH MARSH ISLAND AREA - SOUTH ADDITION

1

t a

i

^ ^ W U E x p L 1" Platfonn

Sta. 0*00.00 X 1,826,652.76 . Y (-) 44.496.01 Lat. 2 8 < , 3 2 , 3 5 J O -

Long.91 0 52 ' 23.11"

Existing CBtf»r*~B* Platfom

Y (-) 49.011.01

BLK. 94

SCALE: i-^ooo*

^2 MX.W.

3' Gov. (MinJ IL Mud Lin* 2 (-) 142* •

5' Gov. (Mhv) Proposed 8" G a s Pipeline

LENGTH m 16,700 F E E T

SCALE: " " " • ^ W O O '

7 FLOW

Tl«-ln Existing Tsnnessss Gas 30" Plpelino

N O T E : Tho Design Characteristics Of This Pipeline Are In Compliance With D.O.T. Regulations.

D A T U M : Mean Low Water ' '

PROPOSED 8" NATURAL GAS PPEUNE GULF OF MEXICO

SOUTH MARSH ISLAND AREA - SOUTH ADOfTKm APPLICATION BY CLFFS EXPLORATION COMPANY

HOUSTON,TEXAS ' SHEET 2 OF %« 5-23-88

> BEST AVAILABLE COPY

SOUTH MARSH ISLAND BLOCK 77

GENERAL NOTES: 1. CUFFS Pipeline Facilities Comply With Part 192,

Title 49 Of Code Of Federal Regulations.

2. CLFFS Platform Facilities Comply With Part 192, Title 49 Of Code Of Federal Regulations,

& ANSI B31.3. 3. High Pressure Sensor Shal Be Set At 1320 PSKL 4. Low Pressure Sensor Shal Be Set At 850 PSIG.

Existing 30" Tennessee Gas (Bluewater) Pipeline

PROPOSED TCHN

o o

To Shutdown System t

o o

-t

A - 8.625" OJD. X 0.406* W.T., 35.66 Lb/Ft ASTM A106 Gr. B SMLS Steel Line Pipe With Fusion Bonded Epoxy Coating.

B = Sacrificial Anodes, 28 ea at 37 lbs ea. Spaced at 600'.

n o

I d z d

i u z o £ Ui S a

5 PSH/L

GLYCOL CONTACTOR 1440 PSIG DWP

PLATFORM

8.625" x J O O ' W.T. 43.39 Lb/Ft ASTM A106 Gr. B SMLS Riser Pipe Coated with 0.500" Thick Rubber Coating In Splash Zone.

8* ANSI 600 CHECK 'ft BALL VALVES

PIPELINE

J CLIFFS EXPLORATION COMPANY PLATFORM


cc

SCHEMATIC FOR 8.625" OJ). NATURAL GAS PIPELINE

GULF OF MEXICO SOUTH MARSH ISLAND AREA - SOUTH ADDITION

APPLICATION BY CLIFFS EXPLORATION COMPANY SHEET 3 OF 9 5-23-88

BEST AVAILABLE COPY

SEP 1 9 7988 In Reply Refer To: FO-2-2 (OCS-G 1008S)

Cl i f f s Oil and Gas Coapany Attention: I i r . R. Newcomer 1200 Saith Street, Suite 300 Houston, Texas 77002

Gentleraen:

Pursuant to the authority granted by 43 U.S.C. ISS^Ue) and 30 CFR 250.150(d), your application dated June 6, revised August 11, 1938, for a pipeline 1

right-of-way two-hundred feet UOO1) in width for the installation, operation, and maintenance of an 8 5/8-inch pipeline, 3.16 miles in length, i s hereby approved, as proposed.

The proposed pipeline w i l l transport natural gas from C l i f f s Oil and Gas Company's Platfora B in Block 79, South flarsh Island Area, South Addition, across Blook 80, South Harsh Island Area, South Addition, to a subsea connection with Tenneco Inc.'s existing 30-inch pipeline (OCS-G 1702-C) in Block 77, South Marsh Island Area, South Addition.

This approval is subject to the following conditions:

1. Our analyses identified the following pipelines as a potential hazard to the proposed a c t i v i t i e s . Therefore, precautions as outlined in Hotice to Lessees and Operators (NTL) No. 83-3, Section IV.B.l. shall be taken prior to conducting operations.

Name Diameter (inches) Block Area

Tenneco Inc. 30 77 South Marsh Island, South Addition

Tenneco Inc. 12 77 South Harsh Island, South Addition

2. The unidentified magnetic anomaly listed below may represent archaeological resources. In accordance with NTL No. 75-3 (Revision No. 1, Enclosure No. 3), you shall either determine that the anomaly does not have historic significance, or avoid i t when conducting the proposed activities as indicated below:

Blook Line No. Shot Point Avoidance Criteria (feet)

79 15 18.5 250

: BEST AV/ftLABLE COPY

Based on our analysis of your application, the naxiuua allowable operating pressure for this pipeline w i l l be 1,440 psig.

Sincerely yours.

"Original signed" - D. J. Bourgeois

D. J. Bourgeois Regional Supervisor Field Operations

co; Departraent of Transportation 2320 La Branch, Room 2116 Houston, Texas 77004 (w/enclosure)

bcc: 'J502-01 (P/L OCS-G 10088) (K. Faust) (FO-2-2) 1502-01 (P/L OCS-G 10088) (FO-2-2) FO-5 LE-5 LE-3-1 (w/attch) OPS-6 (w/cy of plat)

ABritton:ds:9/6/88:LEXITYPE

UNITED STATES GOVERNMENT MEMORANDUM AUG 2 3 1988

To: Regional Supervisor* Field Operations, GOM XS Region (FO)

From: Regional Supervisor, Leasing and Environment, GOM XS Region (LE)

Subject: National Environmental Policy Act Review for Pipeline

Right-of-Way Appl Ication XS-G 1 00 88

Our National Environmental Policy Act (NEPA) review of the subject action Is

complete. Environmental protective measure(s). If any. Identified to avoid or

mitigate potential Impacts associated with the action were Included as part of

the NEPA analysis and are shown on the attached Categorical Exclusion Review

(CER).

H. P. Sieverding

Attachment

cc: Pipeline File XS-G 10088 (LE-5)

Action No. OCS-G 10088

United States Department of the Interior Minerals Management Service Gulf of Mexico OCS Region

NEPA CATEGORICAL EXCLUSION REVIEW

The Categorical Exclusion Review (CER) evaluated the proposed action and determined that 1t meets the categorical exclusion criteria as defined by 516 DM 2.3A(1) which states "(a) The action or group of actions would have no significant effect on the quality of the human environment, and (b) The action or group of actions would not Involve unresolved conflicts concerning alternative uses of available resources." The analysis of potential Impacts by environmental and resource specialists was based on the assumption that the following mltlgatlve measure(s) will be Imposed.

Environmental Protective Measures

The following measure was Identified 1n the plan/application by the lessee/operator submitting the proposal: None.

The measures Identified by MMS during the plan/application review or In the lease stipulation were:

1. The unidentified magnetic anomalies or side-scan sonar contacts listed below may represent archaeological resources. In accordance with NTL No. 75-3 (Revision No. 1, Enclosure No. 3), the applicant will either determine that the potential archaeological resources do not have historic significance or they will avoid them when conducting proposed activities as Indicated by the avoidance criteria below:

PlOCK Line No. Shot Point Avoidance Criteria

79 15 18.5 76 m (17 gammas)

2. Our analyses Indicate the following as potential hazards to the proposed activities. Therefore, precautions in accordance with NTL No. 83-3, Section IV.B, will be taken prior to conducting operations.

Plpelines

Name Diameter (inches) Block Area

Bluewater 30 inch 77 So. Marsh Island, So. Addition Well flow Unknown 77 So. Marsh Island, So. Addition

Exclusion Determination

The proposed action was evaluated and reviewed against the CER exception criteria defined by 516 DM 2.3.A(3). With Inclusion of the above mitigation, 1t does not represent an exception to the categorical exclusions. Therefore, preparation of an EA 1s not required.

uate Preparer^ 1 Date / Ch1q(t," Environmental Operations Section

I concur.

1 rfate Regional Supervisor, Leasing and Environment

UNITED STATES GOVER' NT MEMORANDUM

BEST AVAILABLE COPY D a t e £V /

To: Right-of-Way Pipeline File OCS-G /00 ffl (Uffr

Through: Supervisor, Platform/Pipeline Unit, Plans, Platform and Pipeline Section, Field Operations, Gulf of Mexico OCS Region (FO-2-2)

From: Petroleum Engineer, Platform/Pipeline Unit, Plans, Platform and Pipeline Section, Field Operations, Gulf of Mexico OCS Region (FO-2-2)

Subject: Pipe!Ine Right-of-Way ApplIcation, Technical Review,

OWV- ^ ^ CL(> fs cU&r^ Size Length (inches? l fs£± l Sem'ce Emu l a

^ TMUfS l>6'!ssrf

Recom^ndatlons:

1. The technical aspects of the proposed pipeline are acceptable In accordance with appropriate Regulations and Standards.

2. Advise applicant of Notice to Lessees and Operators No. 83-3.

3. Valve protection cover shall not protrude above the level of the mud line.

4. Subsea valves and taps associated with this pipeline shall be provided with a minimum of three feet of cover, either through burial, with sandbags, or other acceptable method.

5. Mtof-^ 'VYo

cc

A. B r i t t o n

: 1502-01 OCS-G . (w/or ig appln) (Seg. .) (FO-2-2)

OPS-1^;w/cy of p la t ) _

ABrit ton: j j :LEXITYPE Disk 6

BEST AVWUBLE COPY

PIPEUNE RIGHT-OF-WAY APPUCATION "ENGINEERING G

A. Dttcription of pipeline and location of proposed route (Le., rite of pipe, prodnet to be / ^ transported, from where to where, platfonn number, aam^Uoek aumber, area,and dis- T/

B. Safety Flow Schematic • Verify that the infonnation nown on the aafety flow achematic ^ ^ diagramgontains the following:

1. Pressure source is drawn into the schematic wifli fte foDowing:

a. source (Le., wane) SlyCO ( Co^tW ». r -^^£I p%L<a

c. hi^owpressureaensor^ttinp^^ ^ ^ O ^ l ) ^

2. "ANSI** ntings of aD vaKes, flanges, and fittings between the aoorce and the connecting pipeline are shown.

Pressure relief vaKes, where applicable, are shown with the setting set no higher than the maximum working pressure (MWP) of the vessel.

If the maximum input source pressure is greater than the maxfamnn allowable operating pressure (MAOP) of the pipeline, redundant safety equipment is required.

5. MAOP of proposed pipeline does not exceed MAOP of connecting pipeline.

6. The pipeline leaving the platform receKing production from the platform is equipped with high-low pressure aenson to directly or indirectly shut-in the well or weDs on the platfonn.

7. The pipeline delKering production to the production facilities on the platfonn is equipped with an automatic faD-close vaKe tied into the automatic and remote shut-in system.

The pipeline crossing the platform which does not delKer production to the platform, but which may or may not receive production from the platfonn, is •quipped with high-low pressure senson connected to an automatic faD-close vaKe located in the upstream portion of the pipeline at the platfonn. In addition, the senson are tied into either the platform's automatic and remote shut-in system or an independent remote shut-in system.

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9. The tfpdme boarding Ihe pbtfonnjjpipefiitt ii eqnipped with a check vahe.

JO. The pipeline leaving the platfona fc equipped with a check vahe.

J l . Ihe higMow pressure aenson on the depvjiqg pipefine fc located uyttieaiu of flie check vaKe.

Where appBeabk, high-low aenson are located downstream of the back pressure regulator.

V there is Bquid injection into tile line, are pumps associated with the ii\}ection? (Yes or No) _ _ _ _ _

.14. Direction of flow Indicated. (__-

15. Pipe specifications (Le., size, grade, weight and waS thkkness).

.16. Total length of proposed pipeline (feet and mfles).

J7. MAOPofconnectingpipdine. / ¥ < / 0 C S'6^ ^ 7 o ^ ^ C J

.18. Statement that design meets or exceeds DOT Regubtions 192 or 195, as applicable, and/or applicable OCS orders, registered engineer's aeal, registration number, date, and signature.

.19. Area and block number of proposed pipelineA>latfonn.

20. Cathodic protection specifications.

C. Design Infonnation • Verify that the pipeline design infonnation gKen in the application and/or on the data sheet is complete and correct:

i. K . ^ T ^ . AJ«J*^U — 2. Pipeline, riser, and subsea vaKe assembly specifications:

(!) Size X^iTwiD Thickness' ^ Grade ^ Weight 5 5 , 6 ^bs/ft .

(2) Size WaD Thickness Grade Weight Ibs/ft.

(3) Size WaD Thickness Grade Weight Ibs/ft.

b. Riser:

(1) Size WaD Thickness 1 ^ 2 . Grade - 2 — Weight 2l i£lbs/ft .

(2) Size WaD Thickness Grade Weight lbs/ft.

(3) Size WaD Thickness Grade Weight lbs/ft.

c. Subsea vaKe assembly:

(1) Size WaD Hiickness Grade Weight Ibs/ft.

(2) Size Wall TWckness Grade Weight Ibs/ft.

BEST AVAILABLE COPY

. 3. Water depth: Maxfaram ^ ^ ^ Mininram

r4r. TVpe of corrosion protection:

• a. Impressed current system

I — b. Sacrificial anode system

(1) Type of anode G ^ K ^ & M ^ - l l P

f ^ g p ^ f c t w i b e d # t

(3) Weight ofnnit anode fKen hy applicant _ 2 2 _ f t s . ea.

c. If platform anodes are used, ait they considered adequate?

Yes No

d. If pipeline anodes are nsed:

Formula: Le^-3.82x 10«x W/DIR. 31*** A ^ f e . b t t A bco * %*>

Where: W0 - Weight of Anode unit (lbs) D • Dia. of pipe (inches) I • Separation between anodes (ft.) R • the foDowing Ibs/amp/year (Rate of Conauaption) Aluminum or CaKalum * 7.6 Cx*^\j<dL~. s s ^ i ( a Zinc -26 Magnesium • 17.5

Does the calculated life expectancy equal or exceed 20 yean?

Yes ^ No

5. Description of protective coating: ,

a-Rpeline — f ^ < k l~L - I H ^ '

b. Riser — ^ rc t C 'r ' f 1 ' -

c. Subsea valve assembly

Description of weighted coating:

a. Preconcrete coating

b. Density of concrete PCF

c. Thickness of concrete

d. Thickness of asphalt

7. Calculate the specific gravity (one of the foDowing formulae may be used)

BEST AVAILABLE COPY

^ For epoxy eMtiQ<:SG.2.B65W/D3 ^ £, % 3 5 ^ / 7 ^ 3 ^ 1 3 1

fc. Density comparison with flnid material: SG • W+f A R

c lines with a rptcttic thickness of concrete:

SG«RC+ Kt /W»P-RC RfSj^yKj

d. lines harfag two coatings of enamel and a felt wnp, or only asphahmastic coating:

SG* W+P

Where: SG « specific gravity RC • density of concrete (Ib/cu. ft) o K ^ K ; , ^ * coefficients T • thickness of concrete coating (indies) W • weight of bare pipe (lb/ft) P« weight of coating R • density of fluid material (lb/cu. ft); Le aea water • 64 Ibs/cu. ft. D * diameter of pipe (inches) A * crosKectional area

8. Given specific gravity

. . i i lZb. c 9. Gravity or density of produet(s).

.10. Design capacity of p i p e U n e - ^ ^ 1 ^ ^

_<^_n. Given Hydrostatic Test Pressure: line Pipe ^ M S H ^ Time hrs.

Preinstallation Test Riser ^cSd Time—S_ hrs.

Recommended maximum hydrostatic body test for ANSI vaKes, flanges, and fittings are as follows:

ANSI 300 -1,100 psig ANSI 400-1,450 psig ANSI 600 - 2,175 psig ANSI 900 -3.250 psig ANSI 1,500-5,400 psig

BEST AVAILABLE COPY

Note: Minimmn hold times:

line Pipe* 8 hrs. 4 hi*. € 125% of MOP G u - Riser«4 hn. (pretest) liquid- Plus4hn.€ 110%ifleakfaspee>

or DOT 192.507(c) tion is aot visable durfatf lest

J2. Maximum Allowable Operating Pmsure (MAOP) of line pfeie: .

MAOP-2stxFxExT Note: F - . 7 2 ; E - 1 ; T - I

Note: F • .50 for risen on natural ps transmisrion lines. Note: F • .60 for risen on liquid pipelines.

b.MAOP- <%i(*'2'JS

.14. MAOP.of flanges, fittings, and valves:

I^ANSI,.*,,. / fg© 15. MAOP of proposed pipeline as detetminedin accordance with Title 49 CFR Part

195 or 192. as applicable, is / 0 P"! | A Items 12, 13, and 14 above are equal to or more than the maximum allowable

working pressure (MAWP) of source.

Verify: lr25 maximum source pressure (MSP) < hydrostatic test pressure (HTP) < .95 (smaller IP 6 SMYS of items 12 or 13 above)

Note: The recommended limit of test as a percentage of internal pressure @ specificed minimum yield strength is equal to 95%:

IPfr SMYS«2xsxt« — 3 l y H ^ P S1-^ D ^

.18. Verify MAOP does not exceed the lowest of the following:

a. Suomerged components: I1TP/1.25 « I j ) t0*)^

b. Riser: HTP/1.5* / f^L^

S£SI AVAILABLE COPY

Valve fluids nwd: Ves No.

D. Installation Reqninnests:

AS p >dines will be installed or laid to a mininnun of three feet below die levd of the mudline out to and including die 200 foot water depth, except ot pipdine

. Any deviation must be Justified at the time of application.

AD vaKes and taps must be provided with a minimum of duee feet of actual cover either with sofl or sandbags or Jetted to a minimum of three feet bdow die mudline. Ififyns approved vaKe protection coven are used, die vaKes and taps are NOT required to have a minimum of three feet of actual cover or Jetted three feet below the mudline. However, the top of the vaKe protection cover shiS not protrude above die levd of the modline. Any deviation must be Justified at the time of application.

E Pipeline Crossings:

MA 1. AD pipeline crossings fai water depths np to and including 300 feet shaD be cement-bagged with a minimum of 18 inches between die lines with the uppermost line having a minimum of 3 feet of cover in the foim of cement bags installed so as to provide a three foot horizontd to a one foot verticd (3:1) dope with a crown width that is one and one-half (IK) times the pipe diameter. Any deviation must be justified at the time of application.

2. AD pipeline crossings fai water depths greater than 200 feet dull be cement bagged with a minimum of 18 inches between the lines and installed so as to provide a three foot horizontal to a one foot verticd (3:1) dope. Any deviation must bejustified at the time of application.

F. Construction Infonnation:

1. Proposed constniction commencement date , ^ S^^2^^^^ / jj^

2. Method of construction

3. Method of burial

4. Time required to hy pipe *— / V

l-^TTTime required to complete project f = = = = = ^ / cM*<f'*2==«~

C. AppUcant co^ eswidtcunent OCS pipeline guidelines:

Yes No

CUFFS

Cliffs EXPLORATION COMPANY

CLIFFS EXPLORATION COMPANY CITICORP CENTER/SUITE 300 1200 SMITH STREET HOUSTON, TEXAS 77002 Telephone: (713) 651-9426

August 11, 1988

Mr. Daniel J. Bourgeois Regional Supervisor Office of Field Operations U. S. Department of the Interior Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394


RE: Revision to Cliffs Exploration Company's Application for an 8.625-Inch Natural Gas Pipeline to be Installed In and/or Through Blocks 79, 80 and 77, South Marsh Island Area, Federals Waters, Offshore, Louisiana

Gentlemen:

Cliffs Exploration Company (Cliffs) hereby submits proposed revisions to the above referenced application for a right-of-way pipeline. These revisions are a result of a letter of objection from The Louisiana Land & Exploration Company regarding the proposed route of Cliff's originally proposed right-of-way pipeline.

The proposed route of the pipeline will depart Cliff's "B" Platform in South Marsh Island Block 79 in a northeasterly direction and curve to a northwesterly direction, going approximately 16,700' (3.16 miles) to an existing SSTI on Tennessee Gas Pipeline's 30" pipeline in South Marsh Island Block 77, all being in the Gulf of Mexico, Federal Waters, Offshore, Loui siana.

The proposed construction commencement date is September 1, 1988, with the time required to lay the pipe being estimated at 14 days with an overall completion of project time being estimated at 21 days. The base of operations will be Intracoastal City, Louisiana.

In accordance with applicable regulations, we have delivered a copy of the revisions to the application and attachments thereto by certified mail, return receipt requested, to each lessee or right-of-way or easement holder whose lease, right-of-way or easement is so affected. A l i s t of such leases or right-of-way easement holders is attached (see Attachment "A") and copies of the return receipts showing date and signature as evidence of service upon such lessees or right-of-way or easement holders will be forwarded to your office when received. In order to expedite the permit process, we have requested a letter from the lessee, right-of-way or easement holder expressing no objection to the proposed project. When obtained these letters will be

Minerals Management Service Revised Pipeline R-O-W Application South Marsh Island Area Blocks 79/80/77

Page Two

forwarded to your office. The proposed right-of-way does not adjoin or subsequently cross state submerged lands.

In support of this proposed revision, and for your review and use, the following maps, drawings and documents have been enclosed herewith and made a part hereof:

1. Index or Vicinity Map, Sheet 1 of 9

2. Route Map, Sheet 2 of 9

3. Engineering and Hazard Survey (Two Copies)

4. Schematic, Sheet 3 of 9

5. Typical Underwater Schematic, Sheet 4 of 9

6. General Pipeline Information, Sheets 5 of 9 thru 9 of 9

The remainder of the application remains the same as originally submitted.

Contact on technical points or other information:

Jodie Connor J. Connor Consulting P. 0. Box 218753 Houston, Texas 77218 (713) 558-0607

If the above information meets with your approval, we would appreciate your issuing the necessary decision for tne right-of-way at your earliest convenience. Inquiries concerning this application should be directed to our regulatory agent at J. Connor Consulting, Attention: Ms. Jodie Connor (713) 558-0607.

Sincerely,

CLIFES EXPLORATION COMPANY

R. Newcpmer Vice President

RC:JAC:ch sm79rrow

Minerals Management Service Revised Pipeline R-O-W Application South Marsh Island Area Blocks 79/80/77

Page Three

cc: Lessees and Right-of-Way Holders as indicated on Attachment "A", all with Copy of Attachments and Enclosures

North Central Oil Corporation 6001 Savoy, Suite 600 Houston, Texas 77036 (Certified Mail No. 672 741 856)

Mark Producing, Inc. 675 Bering Drive Houston, Texas 77057 Attention: Mr. E. R. Morin (Certified Mail No. 672 741 857)

The Encore Company, Inc. 707 Westchester Avenue White Plains, New York 10604 (Certified Mail No. 672 741 858)

Weststar Drilling Venture Limited 3900 Thanksgiving Tower 1601 Elm Street Dallas, Texas 75201 (Certified Mail No. 672 741 859)

Roberts & Bunch Offshore Inc. The Maratime Building 203 Carondelet Street, SU 817 New Orleans, Louisiana 70130 Attention: Deborah Manale (Certified Mail No. 672 741 860)

Tenneco, Inc. c/o Tennessee Gas Pipeline Co. Division G 720 East Main Street, Suite 514 Houma, Louisiana 70360 Attention: Kim Thibodeaux (Certified Mail No. 672 741 861)

Minerals Management Service Revised Pipeline R-O-W Application South Marsh Island Area Blocks 79/8077

Page Four


The Louisiana Land & Exploration Company 2950 North Loop West, Suite 1200 Houston, Texas 77092 Attention: C. M. Van Zandt III (Certified Mail No. 672 741 862)

Primary Fuels, Inc. P. 0. Box 569 Houston, Texas 77001 Attention: Ms. Melissa S. Hodlik (Certified Mail No. 672 741 863)

Crescent Drilling & Development, Inc. P. 0. Box 4495 Houston, Texas 77210-4495 (Certified Mail No. 672 741 864)

ATTACHMENT "A"

The following Lessees and Rights-of-Way holders on even date with this application were furnished a copy of this application by Certified Mail, Return Receipt Requested (Note: The status of blocks listed below was current as of August 11, 1988, per research of MMS records by Debbie Armond and Mary Holmes).

SOUTH MARSH ISLAND AREA/SOUTH ADDITION

BLOCK 79

North Central Oil Corporation OCS-G 7704 Oil & Gas Lease Mark Producing, Inc. Cliffs Exploration Company The Encore Company Weststar Drilling Venture Limited Roberts & Bunch Offshore Inc.

Tenneco, Inc. OCS-G 1702-C Pipeline R-O-W

BLOCK 80 Louisiana Land & Exploration Co. OCS-G 9537 Oil & Gas Lease Primary Fuels, Inc.

None Pipeline R-O-W

BLOCK 77 North Central Oil Corporation OCS-G 7703 Oil & Gas Lease Mark Producing, Inc. Crescent Drilling & Development, Inc.

Tenneco, Inc. OCS-G 1702-C Pipeline R-O-W Tenneco, Inc. OCS-G 1702-E

UNITED STATES DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT SERVICE

NONDISCRIMINATION IN EMPLOYMENT

As a condition precedent to the approval of the granting of the subject pipeline right-of-way, the grantee, Cliffs Exploration Company, hereby agrees and consents to the following stipulation which is to be incorporated into the application for said right-of-way.

During the performance of this grant, the grantee agrees as follows:

During the performance under this grant, the grantee shall fully comply with paragraphs (1) through (7) of section 202 of Executive Order 11246, as amended (reprinted in 41 CFR 60-1.4(a)), which are for the purpose of preventing discrimination against persons on the basis of race, color, religion, sex or national origin. Paragraphs (1) through (7) of section 202 of Executive Order 11246, as amendea, are incorporated in this grant by reference.

BEST AVAILABLE COPY

o

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1" 1 h V I C I N I T Y M A P

? «a eo TO ioo too "1 I I I I

•CALC IN MILES

PROPOSED 8" NATURAL GAS PIPELINE GULF OF MEXICO

SOUTH MARSH ISLAND AREA - SOUTH ADDITION APPLICATION BY CLIFFS EXPLORATION COMPANY

HOUSTON, TEXAS SHEET 1 OF 9 5-23-88

BEST AVAILABLE COPY

i i g i

R/W Units

8 Proposed Hprthw

BLK. 77 BLK. 78 ^ p T

R/WUmlta

Proposed Sub Sea Tie-in Sta. 162408.09 X 1,821^77.00 Y(-)33.782^0 Lat aa^' iLao* Long. 91*S3'23.95*

BLK. 80


^ | f ! . E x p L 1" Platform

Sta. 0*00.00 X 1,626,652.76 Y (-) 44.496.01 Lat. 28 o 32'35.50' Long. 91*52' 23.11*

Existing Cliffsr"B* Platform

Y (-) 49,011.01

B L K . 9 4

S C A L E : i - : 4 0 0 0 '

^2 MX.W.

<-) IS^ ' 3' Gov. (Mtn.) Mud Line (-) 142*'

5' Gov. (MinJ Proposed 8" Gas Pipeline

LENGTH • 16,700 FEET Horlz. 1" ; 3000'

7 FLOW

SCALE:

Tie-in Existing Tennessee Gas ' 30 ' Pipeline

Vert, f = 200'

N O T E : The Design Characteristics Of This Pipeline Are In Compliance With D.O.T. Regulations.

DATUM: Mean Low Water

PROPOSED 8" NATURAL OAS PPEUNE GULF OF MEXICO

SOUTH MARSH ISLAND AREA - SOUTH ADDTTION {APPLICATION BY CUFFS EXPLORATION COMPANY


• ••(••ir-v-

DEST AVAILABLE COPY


GENERAL NOTES: 1. CUFFS Pipeline Faculties Comply With Part 192,


2. CLFFS Platform Facilities Comply With Part 192, Title 49 Of Code Of Federal Regulations,

& ANSI B31.3. 3. High Pressure Sensor Shal Be Set At 1320 PSIG. 4. Low Pressure Sensor Shall Be Set At 850 PSIG.


1 PROPOSED

TEHN

To Shutdown System

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(PSH/L

- ^ - N I I X J I GLYCOL

CONTACTOR V - / 1 4 4 0 PSIG DWP

PLATFORM

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A : 8.625" Oi) . x 0.406" W.T n 35.66 Lb/Ft ASTM A106 Gr. B SMLS Steel Line Pipe With Fusion Bonded Epoxy Coating.

B = Sacrificial Anodes, 28 ea at 37 lbs ea. Spaced at 600' .

8.625" x .500" W.T. 43.39 Lb/Ft ASTM A106 Gr. B SMLS Riser Pipe Coated with 0.500" Thick Rubber Coating m Splash Zone.

8" ANSI 600 CHECK & BALL VALVES

PIPELINE

CLIFFS EXPLORATION COMPANY PLATFORM


t RAYMOND 3. JAGEMAN

terms! I f



[APPLICATION BY CLIFFS EXPLORATION C0MPANY| SHEET 3 OF 9 5-23-88

,coi AVAILABLE COPY

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3ACK3 OF 3AN0 ANO CEMENT

2*

PROPOSED or EXISTING PIPELINE


TYPICAL UNDERWATER CROSSING

1. FOR P IPEL INES UNDER 8 s / e " DIAMETER THE SLOPE S H A L L BE l' VERTICAL TO

2* HORIZONTAL.'

2 . IF E I T H E R P I P E L I N E HAS A DIAMETER GREATER THAN 8 5 / e " THE SLOPE SHALL

BE I* VERT ICAL TO 3* HORIZONTAL.

3. IF BOTH P IPELINES ARE UNBURIED THE SLOPE SHALL BE l" VERTICAL TO 3*

HORIZONTAL


SOUTH MARSH ISLAND AREA - SOUTH ADDITION APPLICATION BY CUFFS EXPLORATION COMPANY


APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 GENERAL PIPELINE INFORMATION

(1) pyoduct to be transported - Produced well fluids, i.e. natural gas and associated condensate.

(2) Sjge, weight and grade of pipe

8.625" O.D., 35.66 LB/FT, A106 Grade B (seamless)

(3) length of line - 16,700 FT

(4) Maximum water depth - 152 FT (5) Type of corrosion protection - Fusion bond epoxy thin film

coating and galvanic anode system - (See attached detail sheet 9).

(6) Description of protective coating - Fusion bond epoxy coating, 12-14 mils.

(7) Bulk specific gravity of line (with line empty) S.G. = 1.37 - (See attached detail sheet 8).

(8) Anticipated gravity or density of the product Gas 0.60 SP. GR. Condensate 60 degrees API

(9) Design working pressure and capacity Design working pressure 1440 PSI (See attached detail) Design capacity 50 MMSCF/D

(10) Maximum working pressure and capacity Max working pressure (limited by downstream pipeline - See attached detail) 1440 PSI Max capacity 50 MMSCF/D

(11) Hydrostatic pressure and hold time to which the line w i l l be tested after installation. (See attached detail) Test pressure 2160 PSI Test duration 8 - hours

(12) Size and location of pumps and prime movers None

5 of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 PRESSURE DESIGN - 49 CFR PART 192

PIPE

8.625" O.D., 0.406" wall, 35.66 LB/FT, ASTM Al06 Gr. B, Seamless line pipe.

MAXIMUM PIPE DESIGN PRESSURE

P - (2St/D) X F X E X T

Pipeline

S = 35,000 PSI t = 0.406" D = 8.625" F - 0.72 E = 1.00 T = 1.00

P = 2378 PSI

Grade B

Class 1 Seamless <250 degrees F

S = 35,000 PSI t - 0.406" D = 8.625" F = 0.50 E = 1.00 T - 1.00

P = 1652 PSI

Grade B


CONNECTIONS

ANSI - 600 Class Flanged - 1440 PSI

6 of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77

ACTUAL OPERATING PRESSURE - 1200 PSI

MAXIMUM ALLOWABLE OPERATING PRESSURE

Limited by existing 30" Tennessee Gas pipeline MAOP - 1440 PSI

HOOP STRESS IN PIPE

S - PD/2t

Operating P - 1200 PSI S = 12,715 PSI

Max. Allowable P = 1440 PSI S = 15,258 PSI

PERCENTAGE OPERATING STRESS OF SMYS

Pipeline 12,715/35,000 - 36.3% Riser 10,350/35,000 = 29.6%

PERCENTAGE MAX. ALLOWABLE STRESS TO SMYS

Pipeline 15,258/35,000 = 43.6% Riser 12,420/35,000 = 35.5%

TEST PRESSURE

1.50 X 1,440 PSI - 2,160 PSI

TEST DURATION

8-hr minimum

NON-DESTRUCTIVE TESTING

Radiographic inspection of the entire circumference of 100% of the girth welds (See 192.243 (d)(3))

7 of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 EMPTY PIPELINE SPECIFIC GRAVITY

FLOWLINE 8.625" O.D., 35.66 LB/FT.

S.G. = (183.3 W/D2)/dw

S.G. = Specific gravity of empty pipe based on Seawater

W = Weight per foot of pipe, LB/FT

D a Pipe O.D., IN

dw = Density of Seawater, 64 LB/CU FT

S.G. = 1.37

8 Of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 CATHODIC PROTECTION SYSTEM DESIGN

PIPELINE 8.625" O.D. with 12-14 epoxy thin film coating.

mil fusion bond

ANODE SYSTEM Galvalum I I I Tapered Semi-Cylindrical Bracelet Anodes 37 lbs. Spaced Every 600 Feet, 28 Anodes reguired Current Density = 5 ma/ft. Consumption Rate = 9.6# / Amp.-Yr.

PIPELINE EXPOSED AREA 2% Bare Metal A = 16,860 f t . X 8.625 in. X 3.14 X .02

12 in . / f t . A = 761.40 sq. f t .

REQUIRED CURRENT

I = A X CD I = 761.40 (sq.ft.)x .005 I = 3.807 Amps.

A = Exposed Area ( f t . ) CD = .005 Amp./sq. f t . I = Current (Amps.)

EXPECTED LIFE

L

L

L

_W_ I x R

1036 3.807 x 9.6

28.3 Years

L - Life (Years) W = Anodes Weight

28 x 37 lbs. = 1036 lbs, I = Current (Amps.) R = Consumption Rate

9.6# / Amp.-Yr.

9 of 9

CUFFS Crs-&/oo

Cliffs EXPtORATION COMPANY

CLIFFS EXPLORATION COMPANY CITICORP CENTER/SUITE 300 1200 SMITH STREET HOUSTON, TEXAS 77002 Telephone: (713) 651-9426

June 6, 1988

Mr. Daniel J. Bourgeois Regional Supervisor Office of Field Operations U. S. Department of the Interior Minerals Management Service Gulf of Mexico OCS Region 1201 Elmwood Park Boulevard New Orleans, Louisiana 70123-2394


1 5 ^ ^ RECEIVED

M i o K88 FIELD

k ^ , OPERATIONS ^

RE: Application for an 8.625-Inch O.D. Natural Gas Pipeline to be Installed In and/or through Blocks 79, 80 and 77, South Marsh Island Area, Gulf of Mexico, Federal Waters, Offshore Louisiana

Gentlemen:

Pursuant to the authority granted in Section 5(e) of the Outer Continental Shelf Lands Act (67 Stat. 462) (43 U.S.C. 1331), as amended (92 Sta. 629), and in compliance with the regulations contained in Title 30 CFR, Part 250.150(b), Cliffs Exploration Company (Cliffs), hereby submits this application in quadruplicate (original and three copies) for a right-of-way two hundred feet (200') in width for the construction, maintenance and operation of a 8.625-inch O.D. natural gas pipeline in the South Marsh Island Area, Gulf of Mexico. Cliffs agrees that said right-of-way, i f approved, will be subject to the terms and conditions of said regulations.

This 8.625-inch O.D. pipeline will be used to transport gas from Cliff's proposed Platform "B", OCS-G 7704, in South Marsh Island Area Block 79 to a subsea tie-in with Tennessee Gas Pipeline's existing 30" pipeline (Bluewater System) in South Marsh Island Block 77. The pipeline will depart Cliff's "B" Platform in South Marsh Island Block 79 in a southwesterly direction

approximately 16 ipelines 30" pipe

298 ine

feet (3.09 mi in South Marsh

es) curve in a northerly direction, qoin to a proposed SSTI on Tennessee Gas Island 77, all being in the Gulf of Mexico, Federal Waters, Offshore, Louisiana. The proposed construction commencement date is August 15, 1988, with the time required to lay the pipe being estimated at 14 days with an overall completion of project time being estimated at 21 days. The base of operations will be Intracoastal City, Louisiana.

Minerals Management Service Pipeline R-O-W Application South Marsh Island Area Blocks 79/80/77

Page Two

This application (and any amendments made hereto) is made with our full knowledge and concurrence with the OCS Lands Act (43 U.S.C. 1331, et. seq.), as amended (P.L. 95-372), including the following: Sec. 5(e) addressing pipeline rights-of-way, requirements of the Federal Energy Regulatory Commission relating to notice of hearing, transportation and purchase of oil and gas without discrimination; Sec. 5(f)(1) addressing operation of pipelines in accordance with competitive principles, including open and nondiscriminatory access to both owner and non-owner shippers; Sec. 5(f)(2) which may allow exemption of the requirements in Sec. 5(f)(1); Sec. 5(e) addressing the assuring of maximum environmental protection, including the safest practices for pipeline installation; and Sec. 5(f)(1)(B) which may require expansion of throughput capacity of any pipeline except -* — *-<--Barbara Channel.

or the Gulf of Mexico or the Santa

In accordance with applicable regulations, we have delivered a copy of the application and attachments thereto by certified mail, return receipt requested, to each lessee or right-of-way or easement holder whose lease, right-of-way or easement is so affected. A list of such lessees or right-of-way or easement holders is attached (see Attachment "A") and copies of the return receipts showing date and signature as evidence of service upon such lessees or right-of-way or easement holders will be forwarded to your office when received. In order to expedite the permit process, we have requested a letter from the lessee, right-of-way or easement holder expressing no objection to the proposed project. When obtained, these letters will be forwarded to your office. The proposed right-of-way does not adjoin or subsequently cross state submerged lands.

Applicant agrees to be bound by the foregoing regulations, and further agrees to comply with the applicable stipulations as set forth in the OCS Pipeline Procedures Guidebook dated March, 1984, revised September, 1984.

In support of our application and for your review and use, the following maps, drawings and documents have been enclosed herewith and made a part hereof:

1. Index or Vicinity Map, Sheet 1 of 9

2. Route Map, Sheet 2 of 9

3. Engineering and Hazard Survey (Two Copies)

4. Schematic, Sheet 3 of 9

5. General Pipeline Information, Sheets 5 of 9 thru 9 of 9

6. Originally signed copy of Nondiscrimination in Employment Stipulation is attached to each copy of the application.


Page Three

7. Check No. 8829 in the amount of $1,460.00 of which $1,400.00 covers the application fee and $60.00 covers the first year's rental on 3.09 miles of right-of-way.

Contact on technical points or other information:

Jodie Connor J. Connor Consulting P. 0. Box 218753 Houston, Texas 77218 (713) 558-0607

Please refer to your New Orleans Miscellaneous File No. 1072 for a copy of a resolution approved by the Board of Directors authorizing the undersigned to sign for an on behalf of Cliffs Exploration Company.

If the above information meets with your approval, we would appreciate your issuing the necessary decision for the right-of-way at your earliest convenience. Inquiries concerning this application should be directed to our regulatory agent at J. Connor Consulting, Attention: Ms. Jodie Connor (713) 558-0607.

Sincerely,

CLIFF>-EXPL0RATI0N COMPANY

R. Newcomer Vice President

RN:JAC:ch Attachments and Enclosures


Page Four


North Central Oil Corporation 6001 Savoy, Suite 600 Houston, Texas 77036 (Certified Mail No. 672 741 815)

Mark Producing, Inc. 675 Bering Drive Houston, Texas 77057 Attention: Mr. E. R. Morin (Certified Mail No. 672 741 816)

The Encore Company, Inc. 707 Westchester Avenue White Plains, New York 10604 (Certified Mail No. 672 741 817)

Weststar Drilling Venture Limited 3900 Thanksgiving Tower 1601 Elm Street Dallas, Texas 75201 (Certified Mail No. 672 741 818)

Roberts & Bunch Offshore Inc. The Maratime Building 203 Carondelet Street, SU 817 New Orleans, Louisiana 70130 Attention: Deborah Manale (Certified Mail No. 672 741 819)

Tenneco, Inc. c/o Tennessee Gas Pipeline Co. Division G 720 East Main Street, Suite 514 Houma, Louisiana 70360 Attention: Kim Thibodeaux (Certified Mail No. 672 741 820)

Minerals Management Service Pipeline R-O-W Application South Marsh Island Area Blocks 79/8077

Page Five


The Louisiana Land & Exploration Company 2950 North Loop West, Suite 1200 Houston, Texas 77092 Attention: C. M. Van Zandt III (Certified Mail No. 672 741 821)

Primary Fuels, Inc. P. 0. Box 569 Houston, Texas 77001 Attention: Ms. Melissa S. Hodlik (Certified Mail No. 672 741 822)

Crescent Drilling & Development, Inc. P. 0. Box 4495 Houston, Texas 77210-4495 (Certified Mail No. 672 741 794)

ATTACHMENT "A"

The following Lessees and Rights-of-Way holders on even date with this application were furnished a copy of this application by Certified Mail, Return Receipt Requested (Note: The status of blocks listed below was current as of June 6, 1988, per research of MMS records by Debbie Armond and Mary Holmes).

SOUTH MARSH ISLAND AREA

BLOCK 79

North Central Oil Corporation OCS-G 7704 Mark Producing, Inc. Cliffs Exploration Company The Encore Company Weststar Drilling Venture Limited Roberts & Bunch Offshore Inc.

Tenneco, Inc. OCS-G 1702-C

Oil & Gas Lease

Pipeline R-O-W

BLOCK 80

Louisiana Land & Exploration Co. OCS-G 9537 Primary Fuels, Inc.

None

Oil & Gas Lease

Pipeline R-O-W

BLOCK 77

North Central Oil Corporation Mark Producing, Inc. Crescent Drilling & Development

Tenneco, Inc. Tenneco, Inc.

OCS-G 7703

OCS-G 1702-C OCS-G 1702-E

Oil & Gas Lease

Pipeline R-O-W

UNITED STATES DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT SERVICE

NONDISCRIMINATION IN EMPLOYMENT

As a condition precedent to the approval of the granting of the subject pipeline right-of-way, the grantee, Cliffs Exploration Company, hereby agrees and consents to the following stipulation which is to be incorporated into the application for said right-of-way.

During the performance of this grant, the grantee agrees as follows:

During the performance under this grant, the grantee shall fully comply with paragraphs Jl) through (7) of section 202 of Executive Order 11246, as amended (reprinted in 41 CFR 60-1.4 a)), which are for the purpose of preventing discrimination against persons on the basis of race, color, religion, sex or national origin. Paragraphs (1) through (7) of section 202 of Executive Order 1124b, as amended, are incorporated in this grant by reference.

BEST AVAILABLE COPY

BEST AVAILABLE COPY

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UJ Q z < m

R/W Limits

o o

Proposed Pipeline

BLK. 77

i e i l f f ^ ^ W G a ^ w a t e r ) Pipeline

o o

R/W Limits

BLK. 78

Sta. 80+91.59 X 1,820,613.97 Y(-) 41,964.76 Lat .28 , 33 , 00.27* Long. 91*53'30.94"

OCS-G-7704 BLK. 79

/^)d*oSeooooto«oaD»aoa»o««*<.><. .

GARY L. OSimv ; | «oe0«a««*eae« f t f l M cQ< j i - .

xistlng Cliffs "B" Platform

(-) 34,252.96 Proposed Sub Sea Tie-in

Sta. 162498.09 X 1,821,277.00 ^ « Y(-)33,782.00 « Lat. 28 s 34 , 21 .30" « Long. 91"53'23.95"

BLK. 244


Curve Data R -- 3000' A - 109° 37 ' 56.72" L 5740.34'

Sta. 234-51.25 X 1,824,380.63 Y(-) 45,104.82 Lat.28 s 32'29.37" Long. 91*52 ' 48.55"

Cilffe Expl. "B" Platform Sta. 0*00.00 X 1,826,652.76 X Y (-) 44,466.01 Lat. 28 a 32'35.50" Long. 91"52 ' 23 .11 "

S 75° 00' 00" W 2351.25'

{-) 49 ,011 .01

(8)

I

BLK. 94

SCALE: r ^ o o o -

BLK. 245

^1 M.L.W.

3' Gov. (Min.) Mud Line A. (-) 142*

FLOW

5' Gov. (Min.) Proposed 8" Gas Pipeline

Horlz. 1"= 3000 ' S C A L E : V e r t - v . 2 0 0 .

Tie-in Existing Tennessee Gas 30 ' Pipeline

N O T E : The Design Characteristics Of This Pipeline Are In Compliance With D.O.T. Regulations.

D A T U M : Mean Low Water


SOUTH MARSH ISLAND AREA - SOUTH ADDITION (APPLICATION BY C L F F S EXPLORATION COMPANY


JUN 8 1988

BEST AVAILABLE COPY


GENERAL NOTES: 1. CLIFFS Pipeline Faculties Comply With Part 192,


2. CLIFFS Platform Facilities Comply With Part 192, Title 49 Of Code Of Federal Regulations, OCS Orders & ANSI B31.3.

3. High Pressure Sensor ShaO Be Set At 1320 PSIG. 4. Low Pressure Sensor Shan Be Set At 850 PSIG.


I * /^-x z 1 PROPOSED

TE-IN

To Shutdown System

a 0) to

A = 8.625" O.D. x 0.406" W.T., 35.66 Lb/Ft ASTM A106 Gr. B SMLS Steel Une Pipe With Fusion Bonded Epoxy Coating.

B = Sacrificial Anodes, 37 Lb ea. Spaced At 600 '

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2 LU a z < m

5 PSH/L

N I X } GLYCOL CONTACTOR 1440 PSIG DWP

PLATFORM

8.625" x .406" W.T. 35.66 Lb/Ft ASTM A106 Gr. B SMLS Riser Pipe Coated with 0.500" Thick Rubber Coating In Splash Zone.

8" ANSI 600 CHECK & BALL VALVES

PIPELINE » « e « f a « a M » « s e e » e e « e * » « * * * * « « U * « « t J

GARY L. QSIUUm %

C L F F S EXPLORATION COMPANY PLATFORM




(APPLICATION BY C L F F S EXPLORATION COMPANY] SHEET 3 OF 9 5-23-88

I. ^'U

dEST AVAILABLE COPY

SACKS OF SANO ANO CEMENT

2'

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TYPICAL UNDERWATER CROSSING

1. FOR P IPELINES UNDER 6 % " DIAMETER THE SLOPE S H A L L BE l' VERTICAL TO

2' HORIZONTAL.

2. IF E I T H E R P I P E L I N E HAS A DIAMETER G R E A T E R THAN 8 % " THE SLOPE SHALL

BE l' VERTICAL TO 3* HORIZONTAL.

3. IF BOTH PIPELINES ARE UNBURIED THE SLOPE SHALL BE l ' VERTICAL TO 3*

HORIZONTAL


SOUTH MARSH ISLAND AREA - SOUTH ADDITION (APPLICATION BY CLIFFS EXPLORATION COMPANY


APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 GENERAL PIPELINE INFORMATION - OCS ORDER NO. 9

(1) Product to be transported - Produced well fluids, i.e. natural gas and associated condensate.

(2) Size, weight and grade of pipe 8.625" O.D., 35.66 LB/FT, A106 Grade B

(3) Length of line - 16,298 FT

(4) Maximum water depth - 152 FT

(5) Type of corrosion protection - Fusion bond epoxy thin film coating and galvanic anode system - (See attached detail sheet 9).

(6) Description of protective coating - Fusion bond epoxy coating, 12-14 mils.

(7) Bulk specific gravity of line (with line empty) S.G. = 1.37 - (See attached detail sheet 8).

(8) Anticipated gravity or density of the product Gas 0.60 SP. GR. Condensate 60 degrees API

(9) Design working pressure and capacity Design working pressure 1440 PSI (See attached detail) Design capacity 50 MMSCF/D

(10) Maximum working pressure and capacity Max working pressure (limited by downstream pipeline - See attached detail) 1440 PSI Max capacity 50 MMSCF/D

(11) Hydrostatic pressure and hold time to which the line w i l l be tested after installation. (See attached detail) Test pressure 2160 PSI Test duration 8 - hours

(12) Size and location of pumps and prime movers None

5 of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 PRESSURE DESIGN - 49 CFR PART 192

PIPE

8.625" O.D., 0.406" wall, 35.66 LB/FT, ASTM Al06 Gr. B, Seamless line pipe.

MAXIMUM PIPE DESIGN PRESSURE

P = (2St/D) X F X E X T

Pipeline

S = 35,000 PSI t = 0.406" D = 8.625" F = 0.72 E = 1.00 T = 1.00

P = 2378 PSI

Grade B


Riser

S = 35,000 PSI t = 0.406" D = 8.625" F = 0.50 E = 1.00 T = 1.00

P = 1652 PSI

Grade B


CONNECTIONS

ANSI - 900 Class Flanged - 1440 PSI

6 Of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM »B" TO PIPELINE IN BLOCK 77

ACTUAL OPERATING PRESSURE - 1200 PSI

MAXIMUM ALLOWABLE OPERATING PRESSURE

Limited by e x i s t i n g 30" Tennessee Gas pipeline MAOP - 1440 PSI

HOOP STRESS IN PIPE

S = PD/2t

Operating P = 1200 PSI S = 12,715 PSI

Max. Allowable P = 1440 PSI S = 15,258 PSI

PERCENTAGE OPERATING STRESS OF SMYS

Pipeline or Riser 12,715/35,000 = 36.3%

PERCENTAGE MAX. ALLOWABLE STRESS TO SMYS

Pipeline or Ris e r 15,258/35,000 = 43.6%

TEST PRESSURE

1.50 X 1,440 PSI = 2,160 PSI

TEST DURATION

8-hr minimum

NON-DESTRUCTIVE TESTING

Radiographic inspection of the en t i r e circumference of 100% of the g i r t h welds (See 192.243 (d)(3))

7 of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 EMPTY PIPELINE SPECIFIC GRAVITY

PIPELINE 8.625" O . D . , 35 .66 L B / F T .

S . G . = (183.3 W/D 2 ) /dw

S.G. = Specific gravity of empty pipe based on Seawater

W = Weight per foot of pipe, LB/FT

D = Pipe O.D., IN

dw = Density of Seawater, 64 LB/CU FT

S.G. = 1.37

8 of 9

APPLICATION BY CLIFFS EXPLORATION COMPANY SOUTH MARSH ISLAND BLOCK 79 OCS-G-7704 PIPELINE FROM PLATFORM "B" TO PIPELINE IN BLOCK 77 CATHODIC PROTECTION SYSTEM DESIGN

PIPELINE 8.625" O.D. With 12-14 epoxy thi n film coating.

mil fusion bond

ANODE SYSTEM Galvalum I I I Tapered Semi-Cylindrical Bracelet Anodes 37 lb s . Spaced Every 600 Feet, 28 Anodes required Current Density = 5 ma/ft. Consumption Rate = 9.6# / Amp.-Yr.

PIPELINE EXPOSED AREA 2% Bare Metal A = 16,450 f t . X 8.625 i n . X 3.14 X .02

12 i n . / f t . A = 742.89 sq. f t .

REOUIRED CURRENT

I = A X CD I = 742.89 (sq.ft.) x .005 I = 3.714 Amps.

A = Exposed Area ( f t . ) CD = .005 Amp./sq. f t . I = Current (Amps.)

EXPECTED LIFE

L =

L =

W I X R

1036 3.714 x 9.6

L = 29.1 Years

L = L i f e (Years) W = Anodes Weight

28 x 37 l b s . = 1036 lbs. I = Current (Amps.) R = Consumption Rate

9.6# / Amp.-Yr.

9 of 9

BEST AVAILABLE COPY

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SIDE VIEW -irrr,

I t a m l c r a

I n c HOUSTON, U I I S

2 & CUFFS EXPLORATION COMPANY

SOUTH MARSH ISLAND BLOCK 7fl NET GUARD

r — TEA-D-aiB ' :

jun - 8 2000 · gulf of mexico, ocs region 1201 elmwood park blvd. new orleans, la. 70123-2394 ms...

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