in Haply Refer To: RP-2-i NOV I 81985
Vanguard Offshore Manageaw-nt. Coapany attantion: Wr. David Law lire*ser Tower, Suite 500 601 Jefferson Street Houston, Texas 77002
GentlfcSMU:
Reference 1$ aade to your Supplemental Plan of Exploration received h v saber I S , >995. for Lease OCS-G 6*40. Block 24. Chandeleur Area. This plan Includes tht ac t iv i t i es proposed for Hells C and n.
In accordance with 30 CFR 250.34, revised December 13, 197*, and our letter dat..<• January 29, 1979, this plan has heen deternined to he cnssplrte ss of Noveafeer 11, 1995, snd 1s now being considered for approval.
Your plsn control nuaber 1s S-1747 snd should be referenced 1n your consnjulce-tlon snd correspondence concerning this plan.
Sincerely ycurs.
n.^v,; Qoo aS I. faints*1
Acting Regional Supervisor Rules snd Production
bcc: .Lease OCS-G 6840 (OPS-3-2) (FILE ROOM) lOPS-3-4 u/Publlc Info. Copy of the plan (PUBLIC RECORDS ROOM)
DO-5
ATOobert:ga-:11/15/85 Plsk 3C
Office of Program Services
NOV 2 5' 1985
Information Services Section
Vanguard Offshore Management Company Suite soo 3)\e$%e\ £Tou*i
m i j i r r i n o K I T R I I T
R O V I T O K . 1 I 1 1 I 7 7 t O » - 7 B 7 4
T « U * M « N C
i V t t l
Novemoer 4 , 1Q85
U. S. Oepartment of the In te r i o r Minerals Management S e r v i c P. 0 . BOX 7944 MINriMlJ MANAGEMENT SFRVI.-p M e t a i r i e , Louisiana 70010
A t t en t i on : Mr. D. W. Solanas NOV 13 1985 Regional Supervisor
RE: 0CS-G-o*40,' Mock ?4 Chandeleur Area Supplemental Plan of exploration
Gentlemen:
i n accordance with 30 CFR 250.34, as amended. Vanguard Offshore Management Company herein respect fu l ly submits for your approval, a Supplemental Plan o f Exploration for lease OCS-G-6840, Block 24, Chandeluer Area, Offshore, Louisiana.
Vanguard Offshore Management Company submits ten (10) copies of the proposed Supplemental Plan of Explorat ion. Six (6) copies are considered Proprietary Information and are exempt from disclosure as allowed for in subsection (b) paragraph (9) of the Freedom of Information Act (81 Stat. 54; U.S.C. 552) as amended by Public Law 93-502, November 2 1 , 1974, (88 Stat. 1561). Four copies are considered "Public Information". The information believed to be exempt is geological *nd/or geophysical. As Operator of t h i s lease, Vanguard Offshore Management Company requests tnat th is information and data considered to be exempt be dispensed for use only by the U.S. Government.
Thank you for your considerat ion in this matter. I f further information is requ i red , please contact the undersigned at your ear l ies t convenience.
DL/JAC/CJG
Enclosures
VANGUARD OFFSHORE MANAGEMENT COMPANY
SUPPLEMENTAL PLAN OF EXPLORATION
0CS-G-6840
CHANDELEUR AREA BLOCK 24
SECTION ITEM
Introductory Letter
Proposed Type ind Sequence of Exploration Ac t i v i t i es and Timetable
Description of D r i l l i n g Vessel
Safety and Environmental Safeguards, Including 011 Spil l Contingency Plan
Approximate Location of Proposed Wells and Plat
Structural Interpretat ion and Shallow D r i l l i n g Hazards Report
Onshore Support Base Fac i l i t i es
Mud Components
Air Quality Review
0
5dPPLEMrNTAL PLAN OF EXPLORATION 0CS-G-6840
PROPOSEO TYPE ANO SEQl* EXPLORATION ACTIVITIES' MP
Section 2
Vanguard Offshore Management Company proposes a Supplemental ?lan of Exploration to dr i l l two (?) additional wells on Chandeleur Block 24 to further evaluate the subject lease to determine ths potential for future development.
Exploratory dr i l l ing of the f irst well Is scheduled to commence on approximately November R, 1985, subject to the approval of this Supplemental Plan of Exploration and Issuance of the required Permit to D r i l l . Exploratory dr i l l ing should be completed by June 1, 1986.
It should be emphasized that this schedule 1s tentative 1n the meaning of 30 CFR 250.34-1(a). Additional exploratory dr i l l ing must be predicated upon the need to define structures and/or reservoir l imits. The fabrication and Installation of platforms, producing f a c i l i t i e s and pipelines are contingent upon the success of these wells. In addition to the dri l l ing of wells, other activities which may be conducted under this plan would be the setting of caissons or a template over temporarily abandoned wells, a velocity survey In a wellbore and soil nor inc 3.
SUPPLEMENTAL PLAN OF EXPLORATION OCS-G-6840
DESCRIPTION OF DRILLING VESSEL
Section 3
The water depth 1n Chandeleur Block 24 Is approximately 60 to 76 feet.
A jack-up r ig , named "Acadian Spirit" will be uti l ized for exploratory dr i l l ing . A description of the r ig , Including the diverter system 1s included in this section.
V Acadian
Spirit Cepacities Potable Water 800 Bbls Fuel O l 900 Bbls Drill Water 4,000 Bbls Pipe rack area 500 Tons Liquid mud system 1.600 Bbls Sack storage 4,000 sacks Bulk m u d and cemeni 5,300 cu ft
DRILLINQ EQUIPMENT Blowout Preventers: One 2 1 % ' , 2,000 psi WP Hydrii T y p e M S P annular b l o w o u t preventer O n e 13«rt". 5,000 p s i W.P. Three 13H". 5 000 psi WP Cameron Type U blowout preventers
Blowout Preventer Control Unit: A Koomey Model T2022O-3S blowout preventer control unit —3 .000 psi W P accumulator system with six function csoabilities and with two remote stations capable of all functions
Drawworks: Continental-Emsco Model C-2. Type II drawworks 2.000 rated HP. wi th double drum g rooved for 1 % " drill line and 16.000* of Vie." coring line, powered by two GE 752 DC electric motors. 1600 HP to ta l . Model 7838 E lmagcc a u x i l i a r y brake. M o o e l T C B CROWN-O-MATIC
Pumps. Two Continental Emsco FA-130G T , i p l e x pumps, each powered by two GE 752-R DC electric motors. 1600 HP total, pulsation dampener or> each pump
Diesel - Eiectnc Power Four Caterpillar Model D-398 TA Diesel (1000 HP each) driving four GL AC generators (1000 KVA each ) Sm G L SCM cubicles for p o w e i conversion I rom AC lo CK: a n d distribution to d r i l l i ng liiMf tinns One OV Detroit Diesel
Model 16V-71 diesel engine (560 HP) driving AC emergency generator (500 KVA)
Dernck snd Substructure: 147' high x 30' bsse Continental-Emsco 20R derrick. 1.000 000# hook load with 12 lines Continental-Emsco 500 Ton Crown Block wi th s e v e n - 6 0 " x 1 % " sheaves 32' high substructure having s 750 000# casing capacity with a simultaneous setback capacity of 500.000 Ib. two HSMC-125 ton I T Stroke hydrsulic jacks
Cranes: Two Unit Manner 500 cranes with 70 boom length rated 26.0O0# at a radius of 40'
Rotary and Traveling Equipment: Continentai-Emsc; Model T-3'50 rotary table with 37 W opening m-cependentiy driven by one GE 752 R DC electric motor, BOO HP. thru a two-speed t r s n s m i s s i o n 500 Ton Continental-Emsco RA 60-6 traveling block with six 60" x 1W sheaves. 500 Ton Byron Jsckson 5500 Dynaplex hook. 500Ton Con-tinentai-Emsco LB-500 swivel. 42' x 574" hex keliy
Drill Pipe end Dnll Collars 10.000' ot 5" 19 50# Grade E Range (2) drill pipe with 5" X-Hole too' |omts 5,000' of 5* 19 50# Grade G Range (2) dnii pipe with 5" X-Hole tool pints Nine 7 V OD x 2 - W ID x 30 long drill collars with 6%" API Reg connections Nine 774" OD x ?'•'/..," ID x 30' long drill collars witti 5 V." API Reg conno( lions Eighteen 0 V ODxp ' v , , . " ID * 30 long drill col lars w i lh t>" H 90 f l innet lit ui '
Crew Quarters: Air c o n d i t i o n e d , w s o t h s r i z e d accommodations for 52 mon including galley sleeping quarters bath facilities, recreation r res and laundry He l ipo r t su i tab le for Sikorsky S-61.
Rental Equipment Hslliburton cementing skid comprised of 2 - 4 " x 6" Hsll iburton HT-400 triplex cementing pumps (12.000 psi maximum pressure) esch powered by GM Mcdel 8V-71. diesel engines (280 HP) with 44 L mixing unit
Designed and const ruc ted by Bethlehem Steel Corporation, the Acadian Spirit drilling unit was
built m accordance wit1- 'he rules o* the American Bureau of Sh oping and is dassi'-ed as an A-1 Seif-Elevatmg MoL.ie Drilling Unit
V E S S E L Dimensions Platform 170' x 80 (107' including yoke houses) x 14' deep containing drilling equipment, all worKing and living areas with 70' x 70' he'i port Mat Conventional Bethlehem "A" t y • 1 7 0 ' X 1 3 2 ' X 1 3 ' (mdudrng 2' SCOur Skirt) Slot in mat 54' long x 60' wide Slot in Plattcm 46' long x 45' wide
Columns: Four 6 ' O D x 173' x VV to 1%" wa!i structural steel
Jacking System: Bethiehen, yoke and pm jacking system with electro-hydraulic drive providing a 5' working stroke All jacking controls a^e centrally located in the control house
On Bottom Operating Conditions (Non-Humcane) Design Wave Heigh' 30' Design Wave Period 10 sec Wind Speed 70 knots Water Depth 12' mm and 112' max Bottom o' Ma* to Bottom ot Platform 137' Variable Load 3500 kips
On Bottom Operating Conditions (Hurricane) Design Wave Heigh! 50' Design Wave Penod i?sec Wmd Speed 100 knots WatP' Dep'n 1? mm and 100' ma*
BnttO". o' IVH* ti> bottom ot Plat
Vanat ile load 3500 kip.
o o
SUPPLEMENTAL PLAN OF EXPLORATION OCS-G-6840
SAFETY AND ENVIRONMENTAL SAFEGUARDS
Section 4
Safety features during d r i l l i n g operations w i l l Include well control and blowout prevention equipment that meets or exceeds the requirements of OCS Order No. 2.
Oil in any form shal l not be disposed of into the waters of the Gulf.
Liquid waste mater ia ls containing substances which may be harmful to aquatic l i f e or w i l d l i f e , or injurious 1n any manner tc l i f e or property sha l l be treated to avoid disposal of harmful substances Into the waters of the Gulf.
Dr i l l ing muds containing o i l sre not disposed of into the Gulf. This type of material is loaded and barged to shore for proper disposal. D r i l l i ng mud containing toxic substances are neutral ized pr ior to disposal.
Dr i l l cut t ings, sand, and solids containing o i l are not disposed of Into the Gulf, unless the o i l has been removed.
The subject of fshore mobile d r i l l i n g un i t is equipped with dr ip pans under the r ig f loor. A l l o i l from diesel engines 1s pumped to a sump and then pumped In to barrels for re turn to an onshore s i t e .
Operator personnel are instructed in the techniques and methods necessary to prevent po l lu t ion . Non-operator personnel are Instructed and supervised to Insure that non-pol lut ion practices are adhered to .
The f a c i l i t i e s are inspected da i ly .
OIL SPILL CONTINGENCY PLAN
Vanguard Offshore Management Company hes submitted i t ' s Oil Spi l l Contingency Plan to the Minerals Management Service for review and approval. This plan designates an Oi l Sp i l l Team. This team's duties are to eliminate the sources of the o i l s p i l l , remove a l l sources of possible i g n i t i o n , deploy the most viable means of avai lable transportat ion to monitor th» movement of the s l i c k , and contain and remove the s l ick i f possible. Vanguard Offshore Management Company is in the process o jo in ing the Clean Gulf Associates (CGA). The CGA has four permanent basts *n Louisiana; av Venice, Grand I s l e , Intracoastal City and Cameror, and two bases 1n Texas; at Galveston and Rockport. In addition to provid ing equipment, the CGA also supplies advisors for cleanup operations. Transport time to Chandeleur Block 24 could vary from 10 to 16 hours depending upon the location of company operated workboats or work-boats available for charter.
SUPPLEMENTAL PLAN OF EXPLORATION OCS-G-6840
APPROXIMATE LOCATION OF PROPOSED m S AND PLAT
S t c t l c i 5
Chandeleur Area Block 2* is located approximately 35 miles from the nearest s h o r e ' W o f f the Louisiana Coast. A v i c i n i t y p la t Is shown 1:. th is section.
WELL NO. PROPOSED LOCATION PROPOSED DEFTH
* C Surf: 5150' FEL ft 3500' FSL TVD- 6500'
*» D Surf : 6200' FWL ft 2750' FSL TVD: bSOO'
* Veil Location C (Surface) u t i l i z e s lhe same surface locat ion of Well Location A which has been approved under the or ig ina l Plan of Exploration.
** Well Location D (Surface) u t i l i z e s che same surface location of Well Location B which has been approved under the or ig ina l Plan ot Exploration.
VANGUARr orrSHORE MANAGrMfNl cc. CHANDELEUR AREA BLK 2~.
i_ , i l . . i i i l O u i t U N * O M S M O M
T - - • VICINITY MAP
I T
T V«*fw*tt ©M§fc»ci *U*»|t*.t»t Ct
9CA - § »§04p
BLK.ZA R ft* - J OD
6200' Loc. "D"
Loc. "C
8
BLK
lnfo|raafio llAKD Off ft HplH tUNAGttfCNl CO
0 C ft -ft * M O
CMAttMUUM A M *
SUPPLEMENTAL PLAN OF EXPLORATION OCS-G-6840
STRUCTURAL INTERPRETATION ANO SHALLOW rUZARDTTCTKT
Section 6
PROPRIETARY
SUPPLEMENTAL PLAN OF EXPLORATION OCS-G-6840
ONSHORE SUPPORT BASE FACILITIES
Section 7
Vanguard Offshore Management Company w i l l use ex is t ing onshore base f a c i l i t i e s located at Venice, Louisiana. This w i l l serve as port of debarkat ion for supplies and crews. No onshore expansion or construction 1s ant ic ipated with respect to th is ac t i v i t y .
This base 1s capable of providing the services necessary for the proposed ac t i v i t i es . I t has 24-hour service, a radio tower with phone pa tch , dock space, equipment and supply storage base, drinking and d r i l l water , e tc .
SUPPLEMENTAL PLAN OF EXPLORATION OCS-6-6840
MUD COMPONENTS
Section 8
MUD COMPONENTS
COMPARABLE MUD PRODUCTS
1. ITEMS USED ON A ROUTINE BASIS
IMCO CHROMALOY MILCHEM
laco Bar
Imco Gel
Imco Lig
RD-111
Caustic Soda
Aluminum Staarate
Lime
Soda Ash Bicarb
Poly Rx
Imco MD
Foamban
Barita
Bentonlte
Lignite
Cl-CLS
Bar1te/Milba>
Milgel
Hgco
Um Cal
Aluminum Stearate
Lime
Imco Thin
Soda Ash Bicarb
Detergent
FB-3
Aluminum Stearate
Lime
Llgcon
Soda Ash Bicarb
Chemtrol-X
M.D.
LD-8
MAGCOBAR
Barite/Megcobar
Magcogel
Teinathln
Sparcene
Caustic Soda Caustic Soda Caustic Soda
Aluminum Stearate
Lime
XP-20
Soda Ash Bicarb
Resinex
D-D
Magcono!
DESCRIPTION
Barite
Bentonite
Lignite
Blended Lignosuifonate
Sodium Hydroxide
Aluminum Stea ate
Caldum Hydroxide
Modified Lignite
Sodium Carbonate Bicarbonate of Soda
Selected Polymer Blend
Detergent
Defoamer (Usually alcohol based)
11. ITEMS USED LESS FREQUENTLY
IMCO CHROHALLOV MILCHEM MAGCOBAR
OMS DMS DMS DMS
Imco Lold Starch Milstarch My Lo Gel
CMC Drioscos Reg. CMC CMC
Cypan Cypan Cypan Cypan
Permalold Starlose Perme-Lose Poly Sal
Drispac Drispac Drispac Drispac
Gyp Gypsum Gyp Gyp
HME/Super- Hme/SuperdrH HME/Superdr1l HME/Superdril d r i l
Black Magic Supermix
Lubrlkleen
lnco Myca
Imco Plug
Ironite
DFT
Clean Spot
Mica
Nut Plug
Ironite
Black Magic Supermi x
Lubrisal
Mil-Mica
Mil Plug
Ironite
Black Magic Supermi:«
Magolube
Mago-Mice
Nut Plug
Ironite
DESCRIPTION
Nonionic Mud Surfactant
Pregelatinized Starch
Sodium Cat-boxy Methyl Cellulose
Sodium Polyacrylate
Organic Polymer,
Polyanionin Cellulose
Gypsum (Plaster of Paris)
Gilsonite (Treated) Natural Hydrocarbons 4 Wetting Agent
Mud Concentrate for spotting fluid
Organic Lubricant
Mica-Flakes
Ground Walnut or other nut hulls
Synthetic Iron Oxide. H2S Scavenger
Zinc Carbonate Mil Gard H2S Scavenger (Zmc Carbonate)
iliriiiiiiina HiiimilliiiiL'i .0. Box 218753 Houston. Texas 77218 713-558-0607
November 4 , 1985
PROJECTED AIR EMISSION SCHEDULE FOR SUPPLEMENTAL EXPLORATION PROJECT
GENERAL INFORMATION
Location of Fac i l i t y :
Distance Offshore: Name of R1g/Platform: Operator:
Contact Person: Total Well Footage to be Dr i l l ed : Tota l Well Footage to be Dr i l led in 1985: Total Well Footage to be Dr i l led in 1986: Date Dr i l l ing Wil l Begin: Date Dr i l l ing Will End:
Chandeleur Block 24 OCS-G-6840 35 miles Jack-Up Vanguard Offshore Management Company 601 Jefferson Street , Suite 500 Houston, Texas 77002-7974 Mr. David Law 16,117* 7,504' 8,613' November 8, 1985 June 1 , 1986
MAJOR SOURCE (OFFSHORE)
Power used aboard d r i l l i n g vessel; approximate footage d r i l l e d 16,117' .*
Project Edmissions (1 bs/day**ton/year) Emitter
Substance
CO ( ; 66) SO? ( ; 21) NOx < |310) VOC < ! 25) TSP 1 : 22)
* Based on 60 h p h r / f t .
1985 1986
1.49 ! 1 1.71 .47 : 24! ) .54
6.98 3*" ) 8.01 .56 ! -9; ) .65 .50 ( : 25; } .57
Offshore Oil and Gas Development and Production", EPA No. 450/3-77-026, June 1977.
* * Emission factors "rom Table 3 .3 .3 -1 , "Compilation of Air Pollutant Emission Factors", Third Edit ion, EPA Report AP-42, August 1977.
Projected A1r Emissions Chandeleur Block 24 Vanguard Offshore Management Company Page 2
MINOR SOURCES (OFFSHORE)'
Inc lud ing helicopter landing and take-off (7 t r ips/week) ; supply boat (7 trips/week) and crew boat (4 tr ips/week); loading and unloading operat ions.
Emitted Substance
CO
NOX VOC TSP
Proj eted Emissions (tons/year)
1985
.26
.01
.06
.0?
.01
1986
.26
.01
.06
.02
.01
* Tables 3.2.1-3, 3 . 2 . 3 - 1 , and 2 . 1 , "Compilation of Air Pollutant Emission Factors", Third Edit ion, EPA Report AP-42, August 1977.
TOTAL ALL SOURCES (TONS/VEAR)
1985 CO S0? NOX VOC TSP
Major 1.49 .47 6.98 .56 .50 Minor .26 .01 .06 .02 .01
Total 1.75 .48 7.04 .58 .51
1986
Major 1.71 .54 8.01 .65 .57 Minor .26 .01 .06 .02 .01
Total 1.97 .55 8.07 .67 .58
ONSHORE SOURCES
These should be about the same as minor sources unless new f a c i l i t i e s are i n s t a l l e d at the onshore base. No addit ional f a c i l i t i e s are required or planned at this time.
EMISSION EXEMPTION DETERMINATION
For CO: E • 3400D 2 / 3 3400 ( 3 5 ) 2 / 3 - 36,380 tons/year For NOX, VOC, TSP & S0 2 : E = 33.30 « 33.3 (35) - 1166 tons/year
Projected A1r emissions Chandeleur Block 24 Vanguard Offshore Management Company Page 3
As per DOI/MMS regulat ions, th is f a c i l i t y is exempt frcm further a i r qual i ty review as i t has been determined that i t s operations w i l l not have a s ign i f i c a n t adverse environmental impact on a i r qua l i t y .