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186-117
MICROFILMED 9/11/00 DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE %'elecopy Ilo. (907) 276-7542 June !7, 1987 R. S. Allan Staff Drilling Engineer Standard Alaska Production Company P. O. Box 196612 Anchorage, AK 99519-66]2 Re: Location Clearance Prudhoe Bay Unit F-20 Dear Mr. Allan: The Prudhoe Bay Unit (PBU) well F-20 was abandoned in Octo'ber of 1986 An AOGCC representat~ ~ · ._v_ witnessed placement of the surface plug and Welding of the well marker. Since this well is located on an active PBU pad, compliance with 20 AAC 25.170 will be postponed until the final well on the pad is abandoned. Therefore, final location clearance for PBU F-20 is hereby approved. ~o/A P~D 43 ,/ .i Standard Alaska Production Company 900 East Benson Boulev P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 564-.5111 INDEXED DALLAS ARCO CHEVRON EXXON TO: TEXACO MARATHON MOBIL PHILLIPS STATE OF ALASKA GEOSCIENCES REFERENCE: STANDARD ALASKA PRODUCTION Date: 08/26/86 T,~: 77224B SA]PC OPEN HOLE FINAL LOGS The following material Is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning it to this office: DAL./UNIT / STATE: S '~ ~ DIRECTI ONAL~RVEYS TATE Or]LY: >JXagnetic Single Shot Direg~ion~l Survey ~a~. 06/28-7/~7~86 JobJJ: 0686-028 Direct' .S . ,, e: JobJJ: ' ;~Gyr°sc°pic F j: ~S~;~ INFORMATION CONTROL D~e ~ F~,..?T_,.?].~;~L,~~ Well RecoFds LR2-1 Founded ,. ,n !870 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMM,,.5;51ON REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown [] Stimulate [] Plugging [] Perforate [] Pull tubing [] Alter Casing [] Other ~] (Abandoned) 2. Name of Operator Standard AlasKa Production Compan.y 3. Address P. O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 2500' SNL, 2875' NEL, Sec. At top of productive interval 2, TllN, R13E At effective depth A~'z:~i~l'd~J~], 4561' NEL, Sec. 2, Tl lN, R13E 5. Datum elevation (DF or KB) KBE = 71.13' AHSL 6. Unit or Property name Prudhoe Bay Unit 7~'-VV2e(~ n(ulr~b-~r-1 1-13) 8. Approval number 86-117 9 AP~n~mber ~o-- 2 -21612 l°P~%°~hoe Bay Oil Pool Feet 11. Present well condition summary 8213' Cement-4500 cu. ft.-top @ 2450 Total depth: measured feet Plugs (measured) Cement-103 cu ft -top @ 1584 ~)rue v~ ~t ~;cha I feet ' Junk (measured - consisting 13-3/8" Bridge P]ug set @ 150' of one stabilizer, one monel, Cement - 124 cu. ft. - 150' stabilizer, monel, HND, monel, stabilizer, 2 RNP's and bit to surface. remains in hole with bit at 1885' ND BKB and top of fish at 1737' HD BKB. Casing Structural Conductor Surface Intermediate Production Liner Perforation depth: measured Length Size Cemented Measured depth 80' 20" 12 cu. yds. concrete llO' llO' 2663' 13-3/8" 3265 cu. ft. Arctic 2693' 2693' Set III followed by 465 cu. ft. Arctic II true vertical True Vertical depth None - Open hole 2693' to 8213'. Cemented with 4500 cu. ft. Arctic Set I cement - top @ +_ 2450'. Tubing (size, grade and measured depth) None Packers and SSSV (type and measured depth) RECEIVED 12. Stimulation or cement squeeze summary Intervals treated (measured) Treatment description including volumes used and final pressure ,.: :,.i;T 1 .-':" 1986 0il & Gss Cons.~,,~,,,..,,.~,,,,'"'"'-'~."' Agc,,u;2 ..... 13. Prior to well operation Subsequent to operation Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 14. Attachments Daily Report of Well Operations [] Copies of Logs and Surveys Run 15. I hereby certify that the foregoing is true and correct to the best of my knowledge Titlgi vi si on Dri 11 ing Engi neet Date Submit in Dup'licat~ Form 10-404 Rev. 12-1-85 STATE OF ALASKA ..¢ ALASK. ~ILAND GAS CONSERVATIONMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well OIL [] GAS [] SUSPENDED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number Standard Alaska Production Company 86-117 3. Address 8. APl Number P. O. Box 196619, Anchorage, Alaska 99519-6619 50-029-21612 4. Location of well at surface 9. Unit or Lease Name 2500' SNL, 2875' WEL, Sec. 2, TllN, R13E ADL 28280 At Top Producing Interval 10. Well Number F-20 (12-2-11-13) At Total Depth 11. Field and Pool 2500' SNL, 4561' WEL, Sec. 2, TllN, R13E Prudhoe Bay Field 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. Prudhoe Bay Oil P(~ol KBE = 71.13' AMSL ADL 28280 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 15. Water Depth, if offshore 16. No. of Completions 6-23-86 7-4-86 10~5-86 N/A feet MSL none 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD) 19. Directional Survey I 20. Depth where SSSV set 21. Thickness of Permafrost 8213 ' none YES [] NO []I none feet MD 2037 22. Type Electric or Other Logs Run none 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" Condlctor Surface 110' 26" 12 cu. yds. concrete 13-3/8" 72~ L-80 Surface 2693' 17-1/2" 3265 cu. ft. Arctic Set III; followed by 465 cu. ft. Arctic II Open Hol.~ 2693' 8213' 12-1/4" 4500 cu. ft. Arctic ~et I pumped top @ _ + 2450' 24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) None PLUGS: 125 ft. plug (103 cu. ft.) Permafros_ C cement with top at 1584' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 13-3/8" EZ Drill Bridge Plug set @ 150' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 150 ft. Surface plug (124 cu. ft.) Arctic Set I cement Witnessed and approved by State Man 10-4-86 27. PRODUCTION TEST Date First Production I Method of Operation (Flowing, gas lift, etc.) I Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKESlZE IGAS-OIL RATIO TEST PERIOD I~ I Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (co[r) Press. 24-HOUR RATE ~ 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. ,1o~o 0il & C-as 00r~;. Form 10-407 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE J 29. ;. 30.: · -' ' GEOLOGIC MARKER'S FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. 31. LIST OF ATTACHMENTS Reference Report of Sundry Well Operations 10-404 Dated October 10, 1986 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Division ~ ~ Drilling Signed~Mm/ ~ Title Enqineer Date I O ) '~ ~;~ INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wel, ls~_Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21: Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". Fnrm I N-Z~N7 F-20 ABANDONMENT 1. RU Coi led Tubing Unit. 2. Tag fish at 1694' NLM. Pumped 3 bbl. diesel, .5 bbl. water and 18.5 bbl. Permafrost cement. 3. NOC. 4. RU wireline and tag hard cement at 1584'. 5. Remove tree adaptor flange, BPV, tubing hanger with one jr. tubing and cut casing head between wellhead and conductor pipe (below pad level). 6. Displace fluid with nitrogen. 7. RU wireline and tag fluid at 170 ft. Set bridge plug at 150 ft. 8. Mixed and pumped 24 bbl. Arctic Set I surface plug. 9. Plugging operation witnessed and approved by State. 10. Neld surface abandonment plate on casing stub with following information: Standard AlasKa Production Company PBU Iqel 1 F-20 2500' SNL, 2875' NEL Sec. 2, TllN, R13E UM 11. Removed cellar. Cleaned location. Abandonment completed on 10/5/86. RBL/pm/1247D Rig' Nabors 28-E Well: F-20 (12-02-11-13) Sohio Daily Drilling Report -- PBU June 19, 1986 at 0600 hours AFE # 120489 ; ~-~.]- ~: -':' 0600 Depth' ' Day: -1 24-Hour Ftg: ' Water Used: Current Operation' Prepare camp for move. Prepare .camp and rig for move to F-20. MUD TYPE- WT: VIS: PV- YP- FL- SOLIDS: TEMP-°F SURVEY MD ANGLE DIRECTION _'TVD sEcTION LO48H· COORDINATES DLS ,, SAPC Daily Drilling Report -- PBU June 20, 1986 at 0600 hours Rig' Nabors 28-E Well' F-20 {12-02-11-13) AFE # 120489 0600 Depth' ' Day: -2 24-Hour Ftg: ' Water Used' Current Operation' Prepare to move rigJ Moving rig to F-20j MUD TYPE- WT' VIS' PV' YP' FL' SOLIDS' TEMP'°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 1048H' Rig: Nabors 28-E Well: F-20 (12-02-11-13) SAPC Daily Drilling Report -- PBU June 21, 1986 at 0600 hours AFE~ # .120489 . -. 0600 Depth' ' . . . Day: -3 24-Hour Ftg' ' Water Used- Current Operation: c°ntinue tUrn-keY rig move. .. Move to:' F,20. . _. MUD TYPE- WT- V IS: PV: YP- FL' SOL I DS: TEMP' °F . suRvEY 'MD , ,,, ANGLE. DIRECTION : TVD SECTION 1048H. COORD I NATES DLS Rig: Nabors 28-E Well' F-20 (12-02-11-13) SAPC Daily Drilling Report -- PBU June 22, 1986 at 0600 hours AFE # 120489 . 0600 Depth: ' Day: -4 24-Hour Ftg: ' Water Used: 200 Current Operation: Rig up. Rigging up on F-20 . MUD TYPE- Wl': VIS' PV: YP' FL' SOLIDS: TEMP' °F .SURVEY MD ANGLE DIRECTION TVD ,, SECTION COORDINATES DLS 1048H: SAPC Daily Drilling Report -- PBU June 23, 1986 at 0600 hours Rig: Nabors 28-E Well: F-20 (12-02-11-13) AFE # 120489 0600 Depth: ' Day: -5 24-Hour Ftg: ' Water Used: 300 Current Operation: Rig up. Rigging up on F-20. MUD TYPE- WT: VIS: PV: YP: FL: SOLIDS: TEMP:°F SURVEY MD ANGLE DIRECTION .TVD SECTION COORDINATES DLS 1048H: Rig: Nabors 28-£ Well' F-20 (12-02-11-13) SAPC Daily Drilling Report -- PBU June 24i 1986 at 0600 hours AFE # 320489 .. 0600 Depth- 270" Day' 1 24-Hour Ftg: 154' Water Used' 1225 Current Operation' Drilling 17-1/2" hole, Accept rig at 1800 hrs'~ 6/23/86. Spud F.20 at 0001 hrs. 6/24/86. Drilling at 270" " MUD TYPE-Spud WT:8.9 VIS'320 PV'15 yp:75 FL 16'.2 SOLIDS:4 TEMP'°F SURVEY MD A)~LE DIRECTION TVD SECTION 1048H: COORDINATES. DLS Rig: Nabors 28-E Well' F-20 {12-02-11-13) SAPC Daily Drilling Report -- PBU June 25, 1986 at 0600 hours AFE # 120489 0600 Depth' 2100' Day: 1 24-Hour Ftg' 1830' Water Used: Current Operation- Drilling 17-1/2" hole. Drill to 478'. Trip for bit and BHA. Drill to 1423', Trip for bit. Drilling at 2100'. MUD TYPE-Gel-kl ater WT:9.2 VIS'280 PV'16 YP-60 FL:17.6 SOLIDS' TEMP:48°F SURVEY MD ANGLE DIRECTION 'TVD SECTION COORDINATES DLS 1048H' Rig' Nabors 28-E ' Well- F-20 {12-02-11-13) SAPC Daily Drilling Report -- PBU June 26, 1986 at 0600 hours . ' 0600 Depth: 2705' Day: 2 24-Hour Ftg: 605' ' - Water -Used: 1225 Current Operation: LaY DoWn Casing,' Dr.illed to 2705'. CBU. Short trip. POH. Ran 13-3/8" casing to lOl_O,'~ Casing stopped. POH and lay down casing. MUD TYPE-Gel water WT:gj4~ VIS:lO5 PV-12 YP:28 FL:17.0 SOLIDS-6 TEMP:48°F SURVEY MD -ANGLE DIRECTION ~. : . . · : =. . TVD SECTION COORDINATES DLS , 1048H- SAPC Daily Drilling Report -- PBU June 27, 1986 at 0600 hours Rig' Nabors 28,E Well' F-20 (12-02-11-13) AFE # 120489 · 0600 Depth' 2705' Day' 3 24-Hour Ftg' ' Water Used: 885 Current Operation' Prep to run 13-3/8" Casing. RIH and found ledge at lOlO'. Wash and ream from lOlO' to'TD at 2705'. Condition hole. POH. Prepare to run 13-3/8" casing. MUD TYPE-Gel Water WT:9.4 VIS:124 PV-20 YP:32 FL'18.0 SOLIDS'6 TEMP:50°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES ,, DLS 1048H' Rig- Nabors 28-E Well--F-20..(12-02-11-13) . SAPC Daily Drilling Report -- PBU June 28, 1986 at 0600 hours AFE # 120489 0600 Depth' 2705' Day' 4 - 24-Hour Ftg' ' - . Water Used: 8990 _ CUrrent Operation- Installing BOPE System. Ran 13-3/8" casing to 2693' and cemented with 3265 cu. ft. Arcticset III followed by 465 cu. ft. Arcticset II. ~ BOPE. _MUD 'TyPE-Gel Water WT'9.1 VIS'37 PV'IO YP'5 FL'IO.O SOLIDS'4 TEMP'°F · SURVEY m .. MD ANGLE DIRECTION TVD SECTION COORDINATES 1048H' DLS SAPC Daily Drilling Report -- PBU June 29, 1986 at 0600 hours Rig' Nabors 28-E Well' F-20 (12-02-11-13) AFE # 120489 0600 DePth. 3190' Day- 5 24-Hour Ftg' 485' Water-Used: 600 Current Operation' Drilling ahead 12-1/4" hole. Test BOPE. RIH and drill cement to 2680'. Test casing to 3000 psi. Drill FS and new hole to 2720'. Ran FIT to .66 psi/ft. Drill to 2900'. Trip .for bit'and BHA. Drilling at 3190'. MUD TYPE-Gel Water ,~T:9.3 VIS-39 PV-11 YP'6 FL'16.2 SOLIDS-6 TEMP-°F SURVEY MD ANGLE DIRECTION TVD SECTION , · 1048H-' COORDINATES DLS SAPC Daily Drilling Report -- PBU June 30, 1986 at 0600 hours Rig: Nabors 28-E Well: F-20 !12-02-11-13) AFE # 120489 0600 Depth: 4882' Day: 6 24-Hour Ftg: 1692' Water Used: 1925 Current Operation: RIH. Drill to 4882'. Trip for bit and Dynadrill. MUD TYPE-Gel Water WT:9.3 VIS:39 PV:12 YP:6 FL:IS.8 SOLIDS:7 TEMP:55°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 1048H: Rig' Nabors 28-E Well- F-20 Il2-02-11-13) SAPC Daily Drilling RePort -- PBU July.l, 1986 at 0600 hours AFE #~,120489. · - _. . Current Operation' RIH. MUD TYPE-Gel Water SURVEY MD 1 2 3 4 4920 5046 5110 5173 0600 Depth.: 5259' Day: .-. 7 ' 24-HOUr Ftg: 377"" water Used: 875 Dynadrill from 4882' to 4926'. Trip to repair drill pipe screen. DYnadrill'-from4926' to 5259'. Trip for bit and BHA. WT:9.2 VIS:38 PV:to YP'7 FL'12.3 SOLIDS'6 TEMP:62°F DIRECTION ANGLE 2. N70W- 7.8 ,: - NSOW 11.2 N56W 13.7 '-N65W TVD SECT I 0 N COORD I ~TES .- _ 4920 5046 5109 = 5170 DLS .91 .16 .91 3.85 10.33 5.60 10.33 4.66 18.77 11.95 18.77 5.53 30.60 18.64 30.59 5.01 10481..I· Rig: Nabors 28-E Well' F-20 (12-02-11-13) SAPC Daily Drilling Report -- PB(J July 2. 1986 at 0600 hours AFE # 120489 .. 0600 Depth' 5671' Day: 8 24-Hour Ftg: 412' Water Used: 800 Current Opera ti on- POH w/DD #2. Drill to 5562'. Trip for BHA. Dynadrill to 5671'. PON. MUD TYPE-Gel Water WT:9.4 VIS:38' PV:IO YP-8 FL'll SOLIDS:7 TEMP'°F SURVEY DIRECTION 'TVD SECTION COORDINATES 5 6 7 MD ANGL 5344 17'.7 5534 21.8 5601 22,8 N84W NSOW S89W 5335 5514 5576 DLS 75.19 N31.01 W75.18 3.78 138,78 39.94 138.76 2.27 164,12 41.94 164. l0 6.40 1048H' Rig: Nab°'rs 28'E Well' F-20 '(12'02'11-13) -_ SAPC Daily Drilling Report -- PBLI July 3, 1986 at 0600 hours AFE # 120489 0600 Depth' 6385' ' : Day' 9 . 24-Hour Ftg' 714' . - Water Used' 875 CUrrent OPeration- Drilling ahead. : RIH. Ream tight hole from 5489 to 5671'. Drill to 6118'. Trip _~ for bit and BHA. Drilling at 6385'. . MUD TYpE~Gel Water WT:9.7 VIS'38 PV:14 YP-IO FL'9 SOLIDS-9 TEMP'°F SURVEy : - . . MD ANGLE DIRECTION TVD SECTION COORDINATES 5750 22.3 sSow 5713 221 N36.4 W221 6053 21.6 S80W . 5994 333 16.79 333 1048H' DLS 2.34 .23 SAPC Daily Drilling Report -- PBU July 4, 1986 at 0600 hours Rig: Nabors 28-E Well- F-20 (12-02-11-13) AFE # 120489 0600 Depth', 7460' -Day: ilO 24-Hour Ftg: 1076' Water Used: 990 Current Operation: Drlg. a~ead w/12-1/4" hole. Drilling 12-1/4" hole F/6385'-7360'. POH for stab and. bit. Drill to 7460'. MUD TYPE-FW(Lig) WT-9.9 VIS'42 PV-16 YP:13 FL:8 SOLIDS'lO.6 TEMP:64°F suRvEY MD ANGLE DIRECTION TVD 11 6668 22,1 13 7200 21.1 S81W 6666 S86W 7161 SECTION COORD I NATES . 657 21 74 557 792 -61.77 792 1048H' DLS .20 .65 SAPC Daily Drilling Report -- PBU July 6, 1986 at 0600 hours Rig' Nabors 28-E Well' F-20 (12-02-11-13) AFE # 120489 0600 Depth' 8213' Day: 12 24-HJur Ftg ' Water Used: 1400 MUD TYPE- Current Operation· Well on choke @2918. Continue controlling well. on-choke with bit at 2918'. Increase mud weight to ll.O Ppg and-cirCUlate well. . WT:ll VIS:44 PV:20 YP:8 FL:4 :SOLIDS'19 TEMP: °F SURVEY MD ANGLE DIRECTION TVD SECT ION COORD I NATES 1048H' DLS SAPC Daily Drilling Report -- PBU July 7, 1986 at 0600 hours Rig' Nabors 28-E Well- F-20 (12-02-11-13) AFE # 1'20489 '0600 Depth' 8213' Day: 13 24-Hour Ftg' ' Water Used' 490 Current Operation- R/U to Kill F-9. Continue to circulate well on choke. SIDP 175 ps.i.. SICP 800 Psi. Raised mud weight to 11.2 ppg. R/U to pump down annul-us. Pump 40 bbl. down drillpipe. SICP 300 psi. SIDP '0' psi. R/U Dowell and pump 4600 sx Arctic Set ! and displace to 2450'. Strip out with 5 stands to'1885'. MUD TYPE- WT'll VIS:49 PV'23 YP'9 FL'7 SOLIDS'lO TEMP.°F SURVEY MD ANGLE , DIRECTION TVD SECTION COORDINATES DLS 1048H' Rig' Nabors 28-E ~ Well' F-20 (12-02-11-13)- . . SAPC Daily Drilling Report -- PBU July 8, 1986 at 0600 hours AFE # 120489 0600 Depth' 8213' P~ Day' 14 . 24-Hour Ftg: ' Water Used- 875 Current Operation: L/D drill pipe out of derrick. Continue to Observe well with bit at 1885'. F-20 annulus is in communication with F-9 tubing x 9-5/8" annulus. SICP 175 psi. Rig up to kill F-9 and pump 9.6 ppg salt water down 7" tubing. R/U GO and run spinner survey in F-9 and found hole in 7" tubing at 2930'. L/D drillpipe out of derrick. Remove 9-5/8" casing from pipe house. .MUD TYPE- SURVEY- · . MD ANGLE · , PV-28 YP 14 FL:6 SOLIDS'lO TEMP'°F DIRECTION TVD SECTION 1048H- COORDINATES bLS SAPC Daily Drilling Report -- PBU July 9, 1986 at 0600 hours Rig' Nabors 28-E AFE '# 120489.- Well' F-20 (12-02-11-13) ~J ~i ~.~ 0600 Depth: 8213' Day: 15 24-HOur Ftg- ~ O' Water Used' 1900 Current Operation' Cleaning Mud Pits. Back off drillpipe with tongs. POH and L/D 20 its. 5" D.P. and 5 its. HWDP; Land 1 .it' 4-1/2" tubing in tubing hanger and~ install BPV. Install Xmas tree and test to 5000 psi. Pumping mud from rig to storage tanks. MUD TYPE' WT: VIS: P¥: YP' FL- SOLIDS- TEMP'°F SURVEY MD ANGLE DIRECTION TVD sEcTION COORDINATES DLS 1048H' SAPC Daily Drilling Report -- PBU July 10, 1986 at 0600 hours Rig: Nabors 28-E Well: F-20 !12-02-11-13) AFE # 120489 Current Operation: 0600 Depth: ' Day: 16 24-Hour Ftg: ' Water Used: Rig released from F-20 at 0600 hrs. 7-9-86. MUD TYPE- WT: VIS: PV: YP: FL: SOLIDS: TEMP:°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 1048H: SAPC Daily Drilling Report -- PBU July 20, 1986 at 0600 hours Rig: Nabors 18-E Well' F-20 {12-02-11-13) AFE # 120489 , 0600 Depth: ' Day: 24-Hour Ftg: ' Water Used: Current Operation- Moving camp WO gravel permit. Moving to F-20. MUD TYPE- WT' VIS- PV- YP' FL' SOLIDS: TEMP.°F SURVEY -MD- ANGLE DIRECTION TVD SECTION COORD I NATES DLS 1067H: SAPC Daily Drilling Report -- PBU July 21, 1986 at 0600 hours Rig: Nabors 18-E Well' F-20 {12-02-11-13) · AFE # 120489 0600 Depth: ' Day: 24-Hour Ftg: ' Water Used: 500 Current Operation- Working on rig ¥(0 Gravel Permit. Rig mai ntenance~" Standby for gravel work. MUD TYPE- WT: VIS: PV' YP' 'FL' SOLIDS' TEMP'°F SURVEY -~MD ANGLE DIRECTION TVD SECTION. COORD I NATES DLS 1067H: Rig' Nabors 18-E Hell' F-20 /12-02-11-13) SAPC Daily Drilling Report -- PBU July 22, 1986 at 0600 hours AFE # 120489 ~ .. 0600 Depth: ' Day' 24-Hour Ftg' ' Water Used' 500 Current Operation' Rig Maintenance. Rig maintenance. Waiting for gravel permit. MUD TYPE- WT: VIS- PV: YP' FL' SOLIDS: TEMP'°F SURVEY MD ANGLE DIRECTIOn,~ TVD SECTION , COORD I NATES DLS 1067H: SAPC Daily Drilling Report -- PBU July 23, 1986 at 0600 hours Rig: Nabors 18-E Nell:' .1'-20 (12-02-11-13) AFE # 120489 0600 Depth- ' Day' 24-Hour Ftg: ' Water Used' current Operation- Rig maintenance. MUD TYPE- Rig maintenance. Gravel currently being placed. WT: VIS: PV' YP' FL' SOLIDS' TEMP' °F SURVEY . MD ANGLE DIRECTION TVD SECTION 1067H: COORDINATES DLS , , , SAPC Daily Drilling Report -- PBU July 24, 1986 at 0600 hours Rig' Nabors 18-E Well' F-20 (12-02-11-13) AFE # 120489 · 0600 Depth' ' Day' -5 24-Hour Ftg' ' Water Used' Current Operation: Nippling up. Completed gravel work' Moved rig over well. Rigging up~ MUD TYPE- WT' VIS: PV: YP' FL' SOLIDS: TEMP'°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES' , DLS 1067H' Rig: Nabors 18-E Well' F-20 (12-02-11-13) SAPC Daily Drilling Report -- PBIJ July 25, 1986 at 0600 hours AFE # 120489 _ Current Operation: 0600 Depth: ' Day: 1 24-H°ur Ftg: ' Water USed· 1400 Accept. rig 0600hrs. 7/24/86. Test BOPE. PU fishing BHA and tag top of fiSh-at 781'. Unable to screw into fish. CBU. POH. RIH with skirted screw in sub. MUD TYPE-H20 WT' VIS' PV' YP' FL' SOLIDS' TEMP'°F SURVEY _MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 1067H' SAPC Daily Drilling Report -- PBU July 26, 1986 at 0600 hours Rig- F~abors 18-E Well' F-20 (12-02-11-13) AFE # 120489 . · · .. 0600 Depth- ' Day' 2 24-Hour Ftg- ' Water Used: 700 Current Operation- Fishing. SCrew into fish and'jar. Unable to circulate. Ran'free point tool to baffle plate at 1777' and found free pipe. Ran string shot and backed off at 1737' Recovered 27 its. HWDP, jars 2 DC, 1 stab and 1 monel DC. ~IH with fishing assembly· and t~g top of fish at 1737'. CBU with some cement returns. Screw into fish. Jarring. MUD TYPE-H20 WT:8.4 VIS- PV: YP. FL' SOLIDS' TEMP-°F SURVEy ~ MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 1067H' Rig: Nabors 18-E Well- F-20 (12-02-11-13) SAPC Daily Drilling Report -- PBU July 27, 1986 at 0600 hours AFE .//' 120489 0600 Depth' ' Day: 3 24-Hour Ftg' ' Water Used' 550 Current Operation- Jar on fish. Jar on fish. Attempted to back off-at 1777 without success. Ran junk shot to remove baffle plate. Made feeler run to top of MWD at 1824'. Attempted to recover debris from junk shot without success. Attempted back off at top of MWD and at 1777' without success. Jarring on fish. .MUD TYPE-H20 WT:8.4 VIS' PV: YP' FL' SOLIDS' TEMP'°F SURVEY MD ANGLE DIRECTION TVD SECTION cOORDINATES DLS 1067H' SAPC Daily Dril!ing Report -- PBU July 28, 1986 at 0600 hours Rig: Nabors 18-E Well' F-20 (12-02-11-13) AFE # 120489 0600 Depth- ' Day' 4 24-Hour Ftg- ' Water Used' 350 Current Operation- Move Rig to F-9. Jar on fish. Back off screw in sub. POH. RIH open ended and displace hole to diesel. Install tubing hanger with one joint 4-1/2" tubing and BPV. ND BOPE. ~U and test tree. Release rig at 2130 hrs. 7/27/86. MUD TYPE-H20 WT-8.4 VIS' PV- YP. FL' SOLIDS- TEMP.°F SURVEY M___~_D ANGLE DIRECTION TVD SECTION COORDINATES DLS 1067H' .-,le Name. 6257e Date: 3/25/85 Fon{$ 4.3.999 STANDARD ALASKA PRODUCTION COMPANY ~ .... '-~._~ ~. , ~o .~'""' :o~""~ ~1~ ~-~-~ MUD 1 ~" ~ [ ~L L~ /~ ~- J "' ~ /~ ~1~ ~ ~1"~/~ I~' L~ ,o FO ~ J ~ID~ BTM BTM M~ xl~ J~. B~ e S~ ~E ~ ~S ~A [. ~P~ OUT F~TAGE H~ C~D ~R~ NO , ,= , ~ C~E [Y~)' ITEM ~ ~ ~NGTH ITEM ~ ID HR ~C · ~~ 5 DR~L S~ING · 7 ~8 T"~' /5 ~ ~S3 ~ a5.8 ~W ~ 7q~.73 /~ 54o.a~ ~/os?./~,~ I./? , , ~ ~ ~-W ~a~. /~ ~o 815~ ~&5 N?7~ ~° 7?3;,.~ ~0~51 ~'~S~E.g3 ~//34.5E I.O5 Y MD ~G~ ~ ~D SECT ,=,,= ~'" !~"' I=° '~ ~ JP~ ~P CL ~NG ~M~Y , , ~ TO H~. ~v~ L~ , ~ .... I. ~o .... ~.~..E, ~ , . i ~q I"Eos ~'~ SOHIO ALASKA PETROLEUM CO. PAD .F (12.2, II, 13) F' :20 Controlled Drilling Consultants, Inc. LES HENDERSON 3334552 ..... CONT[ LED'DRILLINGCONSULTA&., , INC. Anchorage, Alaska' 99504 (907) 333-1552 July 23, 1986 Mr, Brian Rose Sohio Alaska petroleum ComPany Pouch 6-612. AnchOrage, AK 99502 REt Magnetic Single Shot Survey Job No. 0686-028 Well F-20 (12-2-11-13)- Prudhoe Bay Field North Slope, Alaska Date of Survey~ 06-28-86 to 07-07-86 Dear Mr. Rose Please find enclosed the "Original" and six (6) copies of our Magnetic Single Shot Survey on the above well. The method used in calculating this survey was Radius of Curvature. The depth of the survey was 4882 - 8153. Thank you for giving us this opportunity to be of service. Yours very truly, Controlled Drilling Cons~utants Les Henderson Directional Supervisor , Inc. CDF~PUT~D 4882 0 0 4882, O0 481 0,, 27' 4 ~;:-~ i;; 2 6 4 S' 'i 'S , 99 4, 848, S 6, 5 046 '? 4~S 5 045,47 4'~7' 3,74 5;~ '~ TM ' 't 42. ...... 0 ~ 0 5 0'"""", 5:~,t.,~ 5534 2~ 48 55"t3,47. 544~,74 5601 22 4~ 55'?5 46 ~50S '""~' ~ 6 68 7~90 2i 5 '7'~51,,'~ 7F~.79~43 7615 2Z THE FOLL..Oktii..{;S '~L:S f~:h;'Tf~AF'OLA'FE'!:', Y:;. ',':.> 0 0,, ~ ~ "' R '''~','¢' S 7'2 672 ¢¢2 ,,~ 2 ~ 572 ~E, 72 ~672 ~ ,':, -, ', i TM'-' "' , ,- ~4,' ~ 27'72 2772 2~72 2872 . ,'" ,= 2972 ........ ' 3272 347 ;:~ 3472 ,,00 S ,, '90 S ., O !;;I S ., O 0 S , .,OO S ., O,'O c; , O 0S ., O 0 9 ~ O 08 ,00 S ,0 0 :T'; , ,00 S , ,00 S ,, O: 0 'S ,00 ;S , ,. 00'S ,00 S ,. .. 00S .. ..00 S , ;'" 0S ,00 S , ,.00 S , ,. O0"' O0 S O0 £ . i} O S: 0 0 S 00 S ,0 0 ..:,: ,go '-S , 0 0S O0 'S . ..OO E: , E: [)t'"i, P U T E F.: 3872. ;¢872, ~: ' ~-' 4572, 5:3 S ::3 5 ~ 72 5489 5472 57 05 5672, . 5'~ 2'. ~ 6029 ,, ~ ~ 36. 6 072 ,~,~, 5 ~ "~'~ · ' ~ i,~ -~ 6999 6872 7 'I ~i '7 69'72 .r; O0 R D .T, hi ~:::~ T E. S ? 9 'i 0 ¢2 5¥, 87 $ !:".i..';:;.:, 'l' 4. S 44.. 08 S 3';",59 S 2S,, 99 S ?OO0 8 ~,~ E R T I C ¢. L D E P T H .2000, 5000., ; ...... ......... ~ WELt. -F'r20 (t2-2-11-'3) ...... ; ' ' ' ' ; i= - - : ' - ' _-__' --; ...... : ,- RADIUS.~F_CUR~ATURE_! - ? ................ MAGNETIC SINGLE SHOT ................. ~ ..... : .... ~ .......... ~ ....... ..................... HORIZONTAL VIEW .................... ' .... .STANDARD ALASKA PRODUCTION CO. - t ..... : - ~1 ........ ....... - .... : - - . : ...... [ . . . ..................... ] . . 1 .................... t ...... .......... ..~ ....... 2 : ........ ~ ........ . .... ~ - I I ...... - - ' ...................................... ~ ' . ........ . i _ ~ I ] . 1 ' ~ .... [ ' '~ ~ '- ; ....... ,--' .... ~.-:: -:- ~-'--1 ..... ~ .: '. .... ' : - - ~ ~ ....... ~ , · ,-.::_ ~' .~- -~ -.~'-.'.~--~-s-~=-~-=l:---.-~ -':.",'-.'-t:':"I:" ~ ' ~ ' ' : ' ',- 1 ' - '"~ ~ - : ~ ' ', : :" ' r i -' : ' ": .... : ' : ' ': ....... 't ' - : : [ TMD:8;153'~-'g"-~fLOsuR~- - - ~4-- .-: -: '.: i : : .-.]:- :. { - : . · : - ~ ~S88 51,W ~ , -_ .... ...... ; ,t:,~:~~. ~ ,.~ ., ~.:~ . ., ~ ........ : ..... : - - - - -4 ..... t ......... ~ : ' .... : ....... ; ':~ ' t''':i ............ ............. { .... [ '' ' .............. ; ' - 'i ' ~ "' : ...... .;._''' ~ ....... '': .... .............. ........................................................................................ I ......................... F : ,'--- . ~ , · ~ MEMORANDUM TO: THRU: FROM: Stat,- of Alaska ALAS/Jt OIL K. ND GAS CONSERVATION COl®'ilbozON C. ~. ~Z~ter ton Lonnie C. Smith ~/,.~?t{ C o_mmis s ioner / Bobby Foster Petroleum inspector DATE: October 1, 1986 FILE NO.: D.BDF. 73 TELEPHONE NO.: SUBJECT: Wel!bore Plug SAPC PBU F-20 Permit No. 86-]]7 Prudhoe Oil Pool Sun____day, ~eptember 28, 1986_: The cement plug st in the 13 3/8" ~ This plug was set surface casing on 9/=i/86 was tagged at 1584'. on top of a fish at 1694' using Arctic set cement. The wellhead will be removed and a P&A marker plate will be welded on the casing stub below pad level after the surface cement plug has been set. In summary, I witnessed the P&A cement plug tagging on Standard Alaska Production Company F-20. i02-001 A ( Rev 1 0-84) Standard Alaske ..... Production Cam 900 East Benson ~ evard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 564-5111 Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Attention' Mr. C. V. Chatterton Nell F-20 (12-02-11-13) Mr. Chatterton' Flell F-20 is scheduled for final abandonment as described in a Sundry Notice dated 7/31/86. The cement plugs required for abandonment will be placed via coiled tubing as soon as Rig 18-E moves off of the adjacent Nell F-29. Ne expect F-29 to be completed during the week of 9/1/86. The final abandonment report on Form 10-407 will be submitted upon completion of the abandonment. Very truly yours, RSA/MAM/pm/lO95D cc' R. H. Reiley Drilling Nell File #17 R. S. Allan Division Drilling Engineer A unit of the original Standard Oil Company Founded in Cleveland, Ohio, in 1870. STATE OF ALASKA AL, ...,KA OIL AND GAS CONSERVATION CO,vtMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon X Suspend [] Operation Shutdown [] Re-enter suspended well [] Alter casing [] Time extension [] Change approved program [] Plugging [] Stimulate [] Pull tubing [] Amend order [] Perforate [] Other [] 2. Name of Operator Standard Alaska Production Company 3. Ac~.re~s. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 2500' SNL, 2875' NEL, Sec. 2 TllN R13E At top of productive interval ' ' At effective depth At total depth 2500' SNL, 456l' HE.L, Sec. 2, TI]N, .R.13E . 11. Present well condition summary Total depth: measured 8213 ' feet true vertical feet Plugs (measured) 5. Datum elevation (DF or KB) KBE = 71.]3' AMSL 6. ~Unit ,gr Pro,.Derty, [~a.rrje ~'ruanoe uay unl'~ 7. Well number F-20_ ( 12-2-1 ] -] 3) 8. Permit number 86-!!7 9. APl number .50..-T Q2q-21 fi 12 10. Pool Prudhoe Bay 0il Pool feet Effective depth: measured feet true vertical feet Junk (measured) Casing Structural Conductor 80 ' Surface 2663 ' intermediate Production Liner Perforation depth: measured Length Size true vertical 20" 13-3/8" Cemented Measured depth 12 cu. yds. concrete 3265 cu. ft. Arctic Set III followed by 465 cu. ft. Arctic II True Vertical depth See Attachment 110' 110' 2693' 2693' Tubing (size, grade and measured depth) Packers and SSSV (type and measured depth) 12.Attachments Description summary of proposal [] j U L 3 '1 1986 Detailed operations program [] BOP sketch [] 13. Estimated date for commencing operation 14. If proposal was verbally approved Name of approver Date approved 15. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~S. O~ Title Division Drilling Engineer Date Conditions of approval Approved by Commission Use Only Notify commission so representative may witness I Approval No. ¢~.;~1,~ FO V e ~.! Cc,,. c.-~ Dy order of Commissioner the commission Date Form 10-403 Rev 12-1-85 Submit in triplicate F-20 ABANDONMENT (12-02-11-13) Current Status' Fish consisting of one stabilizer, one monel, stabilizer, monel, MWD, monel, stabilizer, 2 RWPSand bit remains in hole with bit at 1885' and top of fish at 1737'. 1. RU CTU and lay 100 ft. plug (83 cu. ft.) permafrost cement from top of fi shj 2. Tag cement plug and displace to kill weight fluid. 3. Lay 150' Surface plug using {125 cu. ft.) permafrost cement. 4. Cut and recover wellhead. ' 5. Install flat Marker plate in lieu of Marker Post. Plate to be marked by bead-welding with Operator name, Unit name, Well Number and location, MEMORA 'OUM Stat of Alaska ALASKA OIL AND GAS CONSERVATION CO~,~I~SION TO: C.V. DATE: July 30, 1986 Chairmk~f~ F~LE NO.: D .HRH. 44 THRU- Lonnie C, Smith -/:'' ~ TELEPHONE NO.- -/,,~.. C ommis s ioner FROM: HaroId R.- Hawkins Petroleum Inspector SUBJECT: BOP Test SA]PC PBU F-20 Permit No. 86-117 Prudhoe Oil Pool Thurs_day.,_July 24, 1~86: I witnessed the BOP test on SAPC PBU F-20 re-entry with Nabors 1SE rig. There was one failure. The 3~" flexible choke line hose in the cellar split during test. This line was replaced and BOP tests were performed. I filled out an AOGCC report which is attached. In summary, the BOP tests were satisfactorily performed by Nabors ! 8E crew. Attachment O&G #4 5/84 Inspector STATE OF ALASKA ALASKA OIL & GAS CONSERVATION COMMISSION B.O.P.E. Inspection Report Date Well Operator .~_,~o ,~0~, Z~-~ Location: Sec ~ Re p r e s e n t a t iv e [Z~A/~,~.~,~.~/~ Permit # ~'( -l/7 /~asing Set @ ft. D.rilling Contractor /-~Z~/~ Ri Location, General ~/~ Well Sign~%~ General Housekeeping.. ~(yRig ~/~ Reserve Pit_ O~ Mud Syst~m~ ~ Visual Audio Trip Tank Pit.Gauge Flow Monitor Gag Detectors BOPE Stack Annular Preventer Pipe Rams Blind Rams Choke Line Valves H.C.R. Valve Kill Line Valves Check Valve Test Pressure o ,resentative ACCUMULATOR SYSTEM Full Charge Pressure Pressure After Closure Pump incr. clos. pres. 200 psig --- min,~jP sec. '~ Full Charge Pressure 'Attained: ~ min ~gsec. ~ Controls: Master ~(f ' Remote ~ Blinds switch cover~/~ Upper Kelly Lower Kelly Ball Type Inside BOP Choke Manifold No. Valves f~ No. flanges ~ Kelly and Floor Safety Valves Test Pressure Test Pressure Test PreSsure Test Pressure Test Pressure Adjustable Chokes Hvdrauicall~ ~erated choke Test Time %1~ hrs. TeSt Results: Failures ff~/-~f= Repair or Replacement of failed equipment to be made within ,~ ~days and Inspector/ Commission office notified. Remarks: ~//~/~ f J/JC~ 3~ilT. ~T~% ~'~ ~/~NL: X iX.,~~ /r/~/v4~zCI) m7~z'~I~:l) ~D'. / / / Distribution orig. - AO&GCC cc - Operator cc - Supervisor Inspector . . STATE OF ALASKA ALAS,,,A OIL AND GAS CONSERVATION COM~v, ISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon [] Suspend [] Operation Shutdown [] Re-enter suspended well ~ Alter casing ['] Time extension ~_ Change approved program ~ Plugging [] Stimulate ~ Pull tubing ~ Amend order ~ Perforate [] Other}r~ 2. Name of Operator Standard Alaska Production Company 99519-6612 3. Address. O. BOX 196612, Anchorage, Alaska 4. Location of well at surface 2500' SNL, 2875' HEL, Sec. 2, TI]N, R]3E At top of productive interval At effective depth 5. Datum elevation (DF or KB) KBE = 67' AMSL feet 6. Un,Lt or ~, roper, ly na~e. Fruanoe uay unit 7. Well number F-20 (12-2-11-19) 8. Permit number R6-117 9. APl number 50-- 029-21§12 10. Pool Prudhoe 0il Po01 At total depth 2500' SNL, 4561' 14EL, Sec. 2, Tl lN~ R13E 11. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner Perforation depth: measured Length 80' 2663' 8213' feet Plugs (measured) feet feet Junk (measured) feet Size Cemented true vertical Tubing (size, grade and measured depth) Packers and SSSV (type and measured depth) 20" 13-3/8" Measured depth True Vertical depth 12 cu. yds. concrete 3265 cu. ft. Arctic Set III followed by 465 cu. ft. Arctic II llO' ll0' 2693' 2693' See Attachment 12.Attachments Description summary of proposal [] Detailed operations program © BOP sketch 13. Estimated date for commencing operation 14. If proposal was verbally approved Name of approver Date approved 15. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~.~, ~ Title Division Drilling Engineer Commission Use Only Date Conditions of approval Approved by Form 10-403 Notify commission, s,p representative may witness [] Plug integrity ~(,BOP Test [] Location clearance . ~ ......................... Commissioner [ ApprovalNo. by order of .~, the commission Date --~;-~,¢,~ ~ Submit in triplicate F-20 (12-2-11-13) Clean out to shoe. Run gyro. Reenter well. Recover fish. Kickoff at 2700 ft and drill to planned target and compl'ete in accordance with original permitted plan. Directional plan and intersection data to be provided after gyro is run. -' ; STATE OF ALASKA ALA,.,'"A OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon [] Suspend ;~ Operation Shutdown ,~ Re-enter suspended well [] Alter casing ~ Time extension f~ Change approved program ~ Plugging [] Stimulate [] Pull tubing ~ Amend order [] Perforate [] Other [] 2. Name of Operator 5. Datum elevation(DF or KB) Standard Alaska Production Company 71.13' AMSL 3. Address 6. Unitor Propertyname P. O. Box 196612, Anchorage, Alaska 99519-6612 Prudhoe Bay Unit 4. Location of well at surface 2500' W~L, 2875' ~EL, Sec. 2, TllN, R13E, Ulv[ At top of productive interval At effective depth At total depth 7. Well number F-20 (12-02-11-13) 8. Permit number 86-117 9. APl number 50-- 029-21612 10. Pool Pru'dhoe Bay Oil Pool 11. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Structural Conductor 80 ' Surface 2663" Intermediate Production Liner Perforation depth: measured Length Size 8213' feet feet 20" 13-3/8" true vertical Tubing (size, grade and measured depth) Packers and SSSV (type and measured depth) Plugs (measured) feet feet Junk (measured) Cemented Measured depth True Vertical depth 8 cu. yds. concrete 110' 3265 cu.ft. Arctic Set III 2693'MD followed by 465 cu.ft. Arctic II 110' See Attachment RECEIVED J U L 1 ! 1986 · ~* ~ Alaska 0il & Gas Cons. C0mml.ol0~ Anchorage 12.Attachments Description summary of proposal [] Detailed operations program rD BOP sketch [] 13. Estimated date for commencing operation 14. If proposal was verbally approved Name of approver Date approved 15. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~. ~ . ~ Title Division Drilling Engineer Commission Use Only Date Conditions of approval Approved by Notify commission so representative may witness [] Plug integrity [] BOP Test. [] Location clearance [ Approval No. ~ ~_~:';~-"?'~": · ,,, ., :_, ~: .,/. , .... .,.¢~ · by order of Commissioner the commission Date feet Form 10-403 Rev 12-1-85 Submit in triplicate Nell F-20 intersected producing Nell F-9 requiring the suspending of F-20 until Nell F-9 can be secured. F-20 was suspended using 4000 sKs Arctic Set 1 which was displaced to 2450'. Drillp~pe was stripped out to 1885' but is cemented in place. Top and bottom of plug is currently unknown. Annulus pressure was blead off to zero. A 4-1/2" tubing hanger and one ~o~nt 4-1/2" tubing was landed and a BPV installed. The adapter flange was installed and tested to 5000 psi and Xmas tree installed and tested to 5000 psi. MEMORA. mJUM Stat- of Alaska Ai~A_~KA Oi~ AND GA~ CONSERVATION CO~"~i.~olON TH.RU' FROM- o. v. Chairma~ ~ ~ FI LE NO.' . Lonnie C. Smith -~' TELEPHONE NO.' C ommis s ioner SUBJECT: Harold R. Hawkins Petroleum Inspector DATE: July 1, 1986 D. HRH. 38 BOP Test SAPC PBU Pad F-20 Permit 86-117 Prudhoe Oil Pool Saturday, June 28, 1986: While John Boyle and I were on the Slope doing other work, subject of other reports, we witnessed the BOP test on Standard Alaska Production Company's Pad F-20. There were no failures. I filled out an AOGCC report which is attached. in summary, the BOP test John Boyle and i witnessed on Pad F-20, performed by Nabors crew on Rig 28E for SAPC, was satisfactory. Attachment 02-001 A ( Rev 1 0-84) O&G #4 5/84 Inspector STATE OF ALASKA ALASKA 0IL & GAS CONSERVATION COMMISSION B.O.P.E. Inspection Report Date Well Operator ~, ~, ~.. Well /f ~.~ ~ Location: Sec 2 T//~ R/~ M Drillin~ Contractor Location, General Ri Well Sign. d~ Representative ~1~.~ ~.~~/~ Permit # _~r~/- --// 7 /~,~Casing Set @ ~-~ ft. ~sentative ACCUMULATOR SYSTEM General Housekeeping ~ Rig Reserve Pit Mud Systems Visual Audio Trip Tank Pit.Gauge Flow Monitor Gag Detectors BOPE Stack Annular Preventer Pipe Rams .i Blind Rams .~ -~ Choke Line Valves H.C.R. Valve Kill Line Valves Test Pressure Test Results: Failures Full Charge Pressure Pressure After Closure /~d~-~ psig ~-- "i Pump incr. clos. pres. 200 psi~ Full Charge Pressure'Attained: / min ~,~ec.~ s2 ,Ad .Zo s Controls: Master Remote ~/~ Blinds switch cover .~'/~ Kelly and Floor Safety Valves Upper Kelly Lower Kelly Ball Type Inside BOP Choke Manifold No. Valves No. flanges ~~ Adjustable Chokes ,drauicall' ~ted choke Test Time ~ hrs. Test Pressure Test Pressure Test PreSsure f-~ 0,.. Test Pressure Test Pressure ~-L~ ~ ~;;~'- Repair or Replacement of failed equipment to be made within ~-~--~-days and Inspector/ Commission office notified. ~... Remarks: [Z//f~/e~/ ~ SOp ~Z'~ ~-- · Distribution orig. - A0&GCC cc - Operator cc - Supervisor June 16, 1986 Mr. R. S. Allan District Drilling Engineer Standard Alaska Production Company P.O. Box 196612 Anchorage, Alaska 99519-6612 Telecopy: (907) 276-7542 Re: Prudhoe Bay Unit F-20 Standard Alaska .Production Company Permit No. 86-117 Sur. Loc. 2500.'SNL, 2875'WEL, Sec. 2, TllN, Ri3E, UM. BtmJ~oie Loc. 2500'SNL, 456t'WEL, Sec. 2, TllN, R13E, UM. Dear Mr. Allan: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not indemnify you from the probable need to obtain additional permits required by law from other governmental agencies prior to commencing operations at the well site. To aid us in scheduling field work, please notify this office 24 hours prior to commencing installation of the blowout prevention equipment so that a representative of the COmmission may be present to witness testing of the equipment before the surface casing shoe is drilled. Where a diverter system is required, please also notify this office 24 hours prior to commencing equipment installation so that the Commission may witness testing before drilling below the shoe of the conductor pipe. ~ I.~~?' ~ ~. Chat~e~n Chai~an of ' Alaska Oil and Gas Conservation Co~ission BY ORDER OF THE CO~R. iISSION jo Enclosure cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. Mr. Doug L. Lowery STATE OF ALASKA ALASKA ,LAND GAS CONSERVATION CL .IMISSION PERMIT TO DRILL 2O AAC 25.OO5 la. Type of work Drill:~ Redrill []1 lb. Type of well. Exploratory [] Stratigraphic Test [] Development Oil ~'~:x Re-Entry ~ Deepen~1 Service ~ Developement Gas [] Single Zone © Multiple Zone ~ 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool Standard Alaska Production Company KBE Approx. 67' feet Prudhoe Bay Field 3. Address 6. Property Designation Prudhoe Bay Oil Pool P.O. Box 196612 Anchorage, AK 99519-6612 ADL 28280 4. Location of well at surface 7. Unit or property Name 11. Type Bond (see 20 AAC 25.025) 2500' SNL, 2875 WEL, SEC. 2 TllN R13E Prudhoe Bay Unit ,b~o,~/,¥,_¢ At top of productive interval 8. Well nu .mber Number 2500' SNL, 4425' ~.gEL, SEC. 2 TllN R13E F-20 (12-2-11-13) K00683449-G-14 At total depth 9. Approxjmate spud,.d~ate._,~ Amount 2500' SNL, 4561' T~EL, SEC. 2 TllN R13E June ~, 1986//z]Fl-"KSfl $290,000 12. Distance to n&ar¢st~£ 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth(Mo and TVO) property line,F~..~,U~il/r-,-~~-~ surface location ADL 28281 '? '855 feet F-9 33feet 2560 9586'1v~ 9172TVCese& 16. To be comPleted for deviated wells 24° 12' 17. Anticipated pressure (see 2o AAC 25.035 (e)(2)) Kickoff depth 5000 feet Maximum hole angle 0 Maximum surface 3330 psig At total depth O'VD) 8800 ' 4390psig 18. Casing program Settin~l Depth size Specifications Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 20" C~nduc~(~.r,. 80' Surface 110' 110' 8 cu.yds, concrete 17~" 13 3/'8" 72# L-80 Butt 2662' Surface 2692' 2692' 3740 cu.ft. Arctic Set 12¼" 9 5/8" 47# L-80 Buttj~S£$8757' Surface 8787' 8510' 575 cu.ft. Class G 8~" 7" 29# L-80 Butt 1049' 8537' 9586' 9239' 302 cu. ft. Class G w/5', 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented Measured depth True Vertical depth Structural ConductorREE;EIVED Surface Intermediate JUN 1 1986 Production Liner Alaska 0il & Gas Cons. Commission Anchorage Perforation depth: measured true vertical ~ 20. Attachments Filing fee ~ Property plat,x~: BOP Sketch ~ Diverter Sketch ~ Drilling programx~ Drilling fluid program ?~xTimevs depth plot [] Refraction analysis ,~ Seabed report ~ 20AAC 25.050 requirements ~ 21. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~), ~---~. ~ Title Division Drilling Engineer Date(~I/~.I~6 Commission Use Only Permit Number I API number I Appr I/d~e Iaea cover letter /86 - '- ;~ for other requirements , Conditions of approval Samples required ~,' Yes ~'4~,,No Mud log requi.re,,d ~ Yes .'-~,No Hydrogen sulfide mea.~A~res [] Yes,,_, [] No D~irecti~)nal survey required /~,.Yes ~ No Requiredworking,jaC"~ef~or~i,/~,~¢I;/~/~M; ~ 5M; ~ 10M; [] 15M Other: / /~'"'~ /'*~-'~'~~ ~/~/¢:~ by order of Approved by (~ /~-~*/'L ".,///~~~'¢ Commissioner the commission Date Form 10-401 Rev. 1 -1-85 Subm/i ~ triplicate KCL PROPOSED DRILLING AND COMPLETION PROGRAM WELL F-20 [ 12- 2-11-13 ] PBU Install and cement 80' of 20" conductor to surface. Install 20" diverter. The drilling fluid program will consist of an 8.5-9.5 ppg spud mud in the 17-1/2" hole, a 9.0-9.7 ppg water base mud in the 12-1/4" hole and a 9.1 ppg water base mud in the 8-1/2" hole. Drill 17 1/2" hole to 2712' and cement 13 3/8" L-80 Buttress casing to surface. Install blowout prevention equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer. Maximum possible bottomhole pressure is 4390 psi at 8800' TVDss based on original resevoir pressure. Maximum possible surface pressure is 3330 psi based on a gas column to surface from 8600' TVDss and an oil column to 8800' TVDss. Directionally drill 12 1/4" hole to the 9-5/8" casing point above the Sadlerochit Sandstone. Run 9 5/8" 47~ L-80 mixed string of Buttress and NSCC to within 5' of 12 1/4" TD and cement in two stages: First stage using Class G cement around the 9 5/8" shoe. The second stage to be downsqueezed in the 13 3/8" x 9 5/8" annulus followed by nonfreezing fluid. Directionally drill 8 1/2" hole to TD. Run 7" liner from TD to 250' inside 9 5/8" casing shoe and cement using Class G cement with 5% KCL. Clean out to 7" float equipment. Change over to 9.6 ppg. NaC1 completion fluid. Test casing and lap to 3000 psi. Run 9 5/8" production packer on internal plastic coated tubing with gas lift mandrels and a sliding sleeve. Set packer 50' above top of liner. A subsurface safety valve with dual control lines will be placed 50' below base of permafrost. Install and test xmas tree. Displace tubing to diesel. Set and test packer. Suspend well for perforating subsequent to rig release. Tubing Size: 4 1/2", 12.6~, L-80, A/B Mod, BLrIT, IPC with 6 GLMs Tailpipe Size: 4 1/2", 12.6#, L-80, BUTT Note: Possible straddle pack RBL:21-MAY-86 PROPOSED ~OLE DIAGRAM WELL F-20 [12- 2-11-13] PBU PROPOSED DEPTH 20" Conductor 110 Ball Valve 2087 13 3/8" Casing Shoe 17 1/2" Open Hole 2692 4 1/2", 12.69, L-80, A/B Mod, BUTT, IPC with 6 GLMs I: BYe3 9 5/8" Packer 7" Tieback Assembly 8487 8537 9 5/8" Casing Shoe 12 1/4" Hole 8787 8792 7" PBTD 9546 7" Liner Shoe 9586 8 1/2" Open Hole 9586 RBL:21-MAY-86 ECEiVED Alaska Oil & Gas Cons. Co Anchorage, B.C ~. 13 STACK CONFIC RATION 5/8" TRIPLE RAM STACK 5000 PS1 WP DRILLING ' i ANNULAR PREVENTER '- ! ,'I l' I I PIPE RAMS CHECK KILL UNE HAND GATE GATE BLIND RAMS DRILLING SPOOL HAND GATE HYDR. ASST. GATE PIPE RAMS I I F-,A (ProPosed) / ~ o~ 4 ~ o' -.~--') I.._ i : F-14 2o76'1 .-~11 o, 1 ' ' / = ~ (Actual) -- ( , ~ T T~T(~-~-~"-~3)1~il - -~1 I F-I~ '~ ~ ~ - [' (LOC: THIS SURVEY) ~1 I(Actuol) : ~ ~j, ', LAT. 70°~0'14.~1"~ LON..J4e~46'm.m" : : I ~ ~F-IO~ , : ~ r-I~ ! .... ' (Propped) ~ ~ i / 04: ~ (Proposed) ~ ~ ~ ~1 ~ ~ ~o' I ~T F-16~ ~o' ~1 I o~~ I ~ ~ ~ I '~ 1 -- :. -; I o~ I I PAD DETAIL O4 i t2 1 I I t i I F 30 40 I0 20 30 SCALE: I"= 5OO' CERTIFICATE OF SURVEYOR I hereby certify that lam properly registered to practice land surveying in the State of Alaska and that this plat · 'epresents a location survey of the wellpad shown and the wells thereon. This survey was made by me or under my supervision and all dimensions and other details are correct. Bottom hole locations are furnished by others. Date Surveyor J~ PORTION OF PROTRACTED T. II & 12. N., R. I$ E. L 4°d uJ iiiSCALE: - I/2 MILE REVISED SURFACE LOCATIONS F-ZO, F-2B, F-29 ~ F-lO ADDED SURFACE LOCATIONS F-8 ~ F-g(ACTUALS) ADDED PROPOSED BHL F-:;)O, F-28 8, F-~9 ADDED REFERENCE TO PAD F EXTENSION TWO ADDED PROPOSED DH' F-;b.F-16, F-IT~ F-tS,~ Fol9. REVISED PAD DETAIL TO SHOW SE EXTENSION. REVISED BHL F- I0 THRU F- 14 TO ACTUAL 8800' SUB SEA ADDED BOTTOM HOLE LOCATION F-14 (PROPOSED) ADDED BOTTOM HOLE LOCATION F-13 (PROPOSED) .REVISED BOTTOM HOLE LOCATION F- 12 (PROPOSED) ~,_~ 6 - 5 - 86 '~ . 5 - 30 - 86 "-5 - 29 - 86 · I0- 6 - 83 R 7- 1-81 PJR 7- I - 81 4- 11-80 I- 14-80 I - 7- 80 ,~- 12 = 19-79 PAD "F" E XTE NSION Located in ?ROTR. A.CTE. D SEC 2 ~ T. II N.~R.13E.~ UMIAT MERIDIAN~ ALASKA Surveyed for SOHIO PETROLEUM CO. iiiii ii i Surveyed by F.M, LINDSEY 6 ASSOC. LAND ~ HYDROGRAPHIC SURVEYORS 2502 West Northern Lights Boulevord Box 4-~81 Anchorage Alaska ' ~1 t:)N v' T F 14 ,,. i i I i , i ! 4NN : ~ ~ET ~ 5[ JF FA ~F I liN Ri~L ~LC ~, 5NL=Z4UU' NE_=44Z4' ~ ~ Tllq R13E SEC 2~ SN_=2S30' NEL=2877' ~ ' t, . .... ~.~ .. _~, ) 5-dUN' · Closest Approach gnalgsis --- Date' 5--JUN-S6 Tim'e' 14'07'28 Search Radius= 1074 COURSE LiNE For propoqpd .... wpll' F-20 [i~-= ~_~-'1-13]~ Location = W-E S-N TVD(SBS) Top 651959.00 5974295.00 -67.00 Bottom 650309.74 5974262.89 9093.94 Note' Aii depths in ~eet Below Ke!iu Bushing WELL IDENT A _ ~9-~00,_, _ 0 0 F-1 A029-2008400 F-2 A029-2008900 F-4 A029-2009500 F'-5 A029-2009700 F-6 A029-2013500 F-8 A029-2040300 F-9 A029-2042400 F-Il A029-2042500 F-i2 A029-2043400 F-13 A029-2044000 F-14 AO:.9 .--Oo,--gu u F-19 A029-2063600 F-18 A029-2065100 F-iS A029-2065200 F-17 AQ~O-~O~ 1 O0 F-16 Closest Approach /PROPOSED\ /NEARBY\ TVD DEPART TVD DEPART 110.3 10.3 109. 9 60. 9 11.4 12.2 299. 7 200. 7 I00. 5 3.5 100. 3 0.0 0.0 95. 7 95.5 95. 5 O. 0 100. 0 C,. 1 0.0 0.0 0.0 0.0 100.0 0.2 0 0 50.0 0.3 0 0 0.0 0.0 0 0 0.0 O. 0 0 0 300. 0 O. 8 0 0 200. 0 1. 4 i00.0 O. 3 0.0 0.0 0.0 0.0 i00.0 0.2 CLOSEST DISTANCE ~767. 0 :667. 1 ::ii~466. 8 .',8&7. 3 '7., :;' 65. 0 36. 4 .. 5i7. 0 626. 8 O. 0 2. 6 C,. 0 763. 1 ; 0.0 2. 6 O. 0 816. '~- O. 0 100. 0 O. 6 1'031. 6 O. 0 100. 0 O. 7 8E{O. 4 iVE " 0.0 951. 6 I-VI SUMMARY JUN I J 1986 The ~el 1 which comes closest to the AOx9 =.040,_,00 F-9 Alaska Oii& Gas Cons. p r o p o s e d w e 1 :tA~dVi~rA[J~, _. ..... 1F~-, uOo~r_oH!.}RT7 LTS; ! Semrch Radius= 1074 7 DEGREE LEAD LINE For proposed well' F-20. [12- 2-11-13] Location = W-E S-N TVD<SBS) Top 651959.00 5974295.00 -67.00 Bottom 650325.95 5974062.13 9093.94 Note' All depths in 9eet Below Kellg Bushing WELL IDENT Date' Closest Approac~¢ 5-dUN- 86 T~ii e' ( BKB ) ~~.~!il Closest Approach /PROPOSED\ TVD DEPART TVD 0.0 i00. 0 0.0 0.0 O. 0 100. 0 0.0 50.0 0.0 0.0 0.0 0.0 O. 0 300. 0 0 0 0 0 0 0 0 0 0 0 0 0 200. 0 100. 0 0.0 100. 0 2.6 100. 0 100. 0 !00. 0 A029-2008000 F-1 110.3 A029-2008400 F-2 10.3 A029-2008900 F-4 109.9 A029-2009500 F-5 60.9 A029-2009700 F-6 11.4 A029-2013500 F-8 12.2 ~029-2040300 F-9 299.7 A029-2042400 F-Ii 200.7 A029-2042500 F-12 100.5 A029-2043400 F-13 3.5 A029-2044000 F-i4 100.3 A029-2062900 F-19 0.0 AO~9-~u&~.6Ou F-i8 0.0 A029-2065100 F-15 95.7 A0~9-2065~00 F-i7 95.5 A029-2066100 F-16 95.5 0 0 Su r,MAR ¢ /NEARBY\ DEPART 0 1 0 0 0 2 0 3 0 0 0 0 0.8 1.4 0.3 O. 0 0.2 0 0 !.Anal gsis . ~~OSEST DI'~TANCE ,.-, .,{ 767. 0 .'::~ · , 466. 8 .il~ 367. 3 .. 267. 0 ' ,. '~ 65. 0 ! 36. 4 :~2:'9 5. 7 i~406. 7 :':5 i 7. 0 . ~ -:[ ,')~ /626. 8 C:. 0 0.0 0.6 0.7 '763. 1 '816. 2 1'031. 6 880. 4 0 0 14'08:41 5-dUN' TV) 0.6 9.'.=,1. 6 The ~,ell which comes closest to the p~'oposed ~ ~,¢l-;3r2ri8 AO~ 9-~-_040300 FLOWL INE 10 3/4" Hydraulic closes o 10" DIVERTER GROUND LEVEL DRILLING RISER L I 1 DIVERTER SYSTEM DETAIL DRILL. DEPT. April 1982 20" 2000 PSI WP ANNULAR PREVENTOR DRILLING SPOOL 1 20" CONDUCTOR PIPE NOTE: DIVERTER ~INE HAS TWO DIRECTION DISCHARGE CAP~ILI~ AFTER LEAVING RIG SUB-BASES. SURFACE HOLE DIVERTER SYSTEM 10 3/4" manual t~Jtterfly valves ~ 10 3/4". 55~ Buttress 10-3/4" Hydraulic operated _~_Butter fly valve · ~_ _// ~' 20" Diverter $~[xDo] u/10 ~Side O~t]et. Two lines venting 90° apart in directions that insure safe down wind venting, and extending to a point at least 100' (feet) from any potential source of ignition. NOTES 1. Ail pipe connections 150# ANSI Flanges or welded connections and secured to prevent movement. 2. Manual 10-3/4" butterfly valves, mechanically connected to insure that one valve is fail- safe open at all times. 3. All turns are 90© (degrees) and targeted. TO FLARE CAVlEM UNIT I CAVIEM UNIT 2 CHOKE MANIFOLD TRIP TANK 170 BBL VOLUME TANK 137 BBL EQ. FILL LINE DISTI DITCH TRAP 4 BBL 131 BBL 81BBL DEGAS$1NG TANK DESlLTER NABORS CENTRIFUGI~ PIONEER MI( I DEQA88ER DRLCO 8EEFLOW TO PIT TO STAND PIPE & KILL LINE I TO DISTRIBUTION VOLUME TANK 180 BBL SUCTION 1 17 BBL MUD PUMPS WATER 87 BBL MUD HOPPERS & MIXING PUMP8 SUCTK)N 134 BBL NABORS DRLI..~G LTD. ' RIG No. 28E MUD SYSTEM SURFACE FACILITIES TOTAL ACTIVE SYSTEM: 800 BBL TOTAL SURFACE CAPACITY : 970 BBL ;, TO FLARE CAVIEM UNIT I TRIP TANK 170 BBL FILL LINE VOLUME TANK 137 BSL EO. D~CH CA¥1EM UNIT 2 CHOKE MANIFOLO TRAP 4 BBL CI~ITRIFuGI~ PIONEER TO PIT , 1S1 BBL 81BBL DEGASSING TANK DESILTER NABORS DEGA88ER DRILCO 8EEFLOW -- TO STAND PIPE & K[LL~E VOLUME TANK 180 BBL SUCTION 117 BBL MUD PUMPS ITO DISTRIBUTION WATER 87 BBL MUD HOPPERS & MIXING PUMPS SUCTION 134 BBL NABORS DRLLI~G LTD. ' RIG No. 28E MUD SYSTEM SURFACE FAGILITES TOTAL ACTIVE SYSTEM: 800 BBL TOTAL SURFACE CAPACITY : 970 BBL Loc . , . , .. (3)~ ~Admin (4) Casg (1.4 thru '22) (5) BOPE (23 thru/28)' ' (29 thru:' 31') (6) Add: Geology: Lc's WVA ~ M~M~ HJH / rev: 04/03/86 6.011 fee . ' IS : eeeeee .e.eeeeeeeeee.eeeeeeeeeeeeeeeeeee.eee 2. Is WelI to be lOcated in a defined pool .............................. 3. Is'well located proper distance from property line .................. 4. Is well located proper distance from other wells .... , ............... 5. Is sufficient undedicated acreage available in this pool ............ 6. Is well to be deviated and is wellbore plat included ..... ~ ........... 7. e ' 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26 27. 28. For 29. 30. 31. 32. Is operator the only affected party ' eleeeeeee®eeee®e®ee®eeeeeeeeeeeee Can permit be approved before ten day wait ~ eeeeeeeeeeeeee®eeeeeee~eee Does operator have a bond in force .................................. conservation order needed ~ Is a ......................-..-.......-.... Is administrative approval needed ................................... · Is the lease number appropriate ..................................... Does the well have a unique name and number ......................... YES ' NO Is conductor string provided .............. .......................... Will surface casing protect fresh water zones ....................... Is enough cement used to circulate on conductor and surface ......... Will cement tie in surface and intermediate or production strings ... Will cement Cover all known productive horizons ..................... Will all casing give adequate safety in collapse, tension and burst.. Is this well to be kicked off from an existing wellbore ............. Is old wellbore abandonment procedure included on 10-403 ............ adequate wellbore separation proposed ............................ Is Is a diverter system required ....................................... Is the drilling fluid program schematic and list of equipment adequate Are necessary diagrams and descriptions of diverter and BOPE attached. Does BOPE have sufficient pressure rating - Test to ~~ psig .. Does the choke manifold comply w/API RP-53 (May 84) .................. Is the presence of H2S gas probable ................................. exploratory and Stratigraphic wells: Are data presented on potential overpressure zones? .................. Are seismic analysis data presented on shallow gas zones ............ If an offshore loc., are survey results of seabed conditions presented Additional requirements ............................................. POOL INITIAL CLASS STATUS [Pa,,, f-o[( GEO. AREA UNIT NO. ON/OFF SHORE Additional Remarks:
