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191-015
• bp BP Exploration (Alaska) Inc. _ �`'' Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 � Anchorage, Alaska 99519 -6612 December 20, 2010 witNNED JAN 2, 4 2011 _ �°# ' o 03 lll' Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7 Avenue '1" CYa, ; ^`S iiS. Anchorage, Alaska 99501 Ailt;Ilf` 44e _ 0 Subject: Corrosion Inhibitor Treatments of GPB Y Pad 19 I- 0 i 3 Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from Y Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Jerry Murphy, at 659 -5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator • • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) Date: 12/20/10 Corrosion Well Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft na gal Y -01B 2010760 50029203940200 NA 2.5 NA 8.50 4/11 /2010 Y - 02A 2011730 50029203950100 NA 0.1 NA 0.85 4/11/2010 Y - 03A 2042350 50029204110100 NA 2.2 NA 18.70 4/16/2010 Y -04 1791050 50029204230000 NA 1 NA 5.10 4/11/2010 Y -05B 2081380 50029204360200 NA 3.3 NA 20.40 4/15/2010 Y - 06A 2042510 50029204310100 NA 0.7 NA 3.40 4/16/2010 Y - 07A 2071050 50029205600100 14.5 2.0 0.3 NA 1.70 8/4/2010 Y - 08A 1880560 50029205720100 NA 4 NA 15.30 8/5/2010 Y - 09A 1970830 50029205790100 19 1.5 3.6 NA _ 17.00 8/4/2010 Y - 10A 2042500 50029205870100 19 3.0 8.75 NA 54.40 8/6/2010 Y - 11C 2051640 50029205130300 NA 0.1 NA 0.90 4/14/2010 Y -13 1811120 50029206340000 NA 0.4 NA 3.40 4/15/2010 Y -14B 2011010 50029218320200 NA 3.8 NA 20.40 4/10/2010 Y - 15A 2010890 50029209400100 NA 2.1 NA 11.90 4/10/2010 Y - 16 1830490 50029209320000 18.8 2.0 1.7 NA 10.20 8/4/2010 Y - 18 1830290 50029209160000 _ NA 0.8 NA 5.10 4/9/2010 Y - 19 1880960 50029218570000 NA 0.2 NA 0.85 4/15/2010 Y - 20A 2010250 50029215870100 NA 1.5 NA 11.90 4/14/2010 Y - 21A 1950370 50029215740100 NA 0.1 NA 1.70 4/13/2010 Y - 22A 1881150 50029215580100 NA 0.5 NA 3.40 8/4/2010 Y -236 2031640 50029215900200 NA 1.2 NA 6.80 4/13/2010 Y - 24 1861130 50029216080000 NA 1 NA 6.80 4/12/2010 Y -25A 2081400 50029218830100 NA 0.3 NA 1.70 4/18/2010 Y - 26A 2010430 50029221910100 NA 0.3 NA 1.70 4/15/2010 Y - 27 1900280 50029220190000 NA 0.5 NA 3.40 4/14/2010 Y - 28 1910650 50029221690000 NA 3.5 NA 28.90 4/12/2010 Y -29A 1960910 50029221230100 NA 0.2 NA 1.70 4/13/2010 ......e 1910150 50029221350000 NA 0.5 NA 2.60 4/13/2010 Y - 31 1910560 50029221610000 NA 0.5 NA 3.40 4/12/2010 Y - 32 1910410 50029221490000 NA 0.3 NA 1.70 4/18/2010 Y - 33 1910300 50029221440000 NA 0.9 NA 6.80 4/12/2010 Y - 34A 1990040 50029221780100 NA 0.9 NA 5.10 4/11/2010 Y - 35A 2022370 50029221860100 NA 1.5 NA 10.20 4/15/2010 Y -36 1931310 50029224000000 NA 0.9 NA 5.95 4/10/2010 Y - 37A 2020460 50029224030100 NA 0.8 NA 6.00 4/14/2010 bp August 2, 2001 To: Attention: Subject: Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Tom Maunder Petroleum Engineer Well Y-30 CTD Sidetrack Prep BP Exploration Alaska Inc. Drilling & Wells Coiled Tubing Drilling Team Well Y-30 is scheduled for a through tubing sidetrack to be drilled with coiled tubing. The following summarizes the procedure required to prep Y-30 for drilling and is submitted as an attachment to Form 10-403. A schematic diagram of this proposed completion is attached. 1. Tree wing & master valves will be tested. 2. Using slickline, tubing will be ddfted & gas lift mandrels will be dummied off. 3. Inner Annulus will be liquid packed and pressure tested. 4. Using wireline a Baker 4-1/2" x 5-1/2" through tubing whipstock will be run & set at approximately 9120'md (8828' TVDss). $. Service coil may then mill a 3.8" window out of the 5-1/2" liner. Slickline, wireline & service coil prep work is expected to commence August 10th. Coil tubing drilling operations, as detailed below will commence August 17th, 2001. 1_. A 3-%" sidetrack, -1700' long will be drilled out of 5-1/2" liner into Zone 4. 2. The sidetrack will be completed with a 3-1/2" x 2-7/8", slotted & uncemented liner. Thomas McCarty CT Drilling Engineer Tel' 564-5697 Fax' 564-5510 Cell' 240-8065 mccarttm@bp.com Well File Petrotechnical Data Center Terrie Hubble ! STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMi,SSION APPLICATION FOR SUNDRY APPROVAL 1. Type of Request: [] Abandon [] Suspend [] Plugging [] Time Extension [] Perforate [] Alter Casing [] Repair Well [] Pull Tubing [] Variance [] Other [] Change Approved Program [] Operation Shutdown [] Re-Enter Suspended Well [] Stimulate Mill Window for Multilateral 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface v/' ,/' ..... ~ 1357' SNL, 43' EWL, SEC. 34, T11 N, R13E, UM At top of productive interval 1098' SNL, 1093' WEL, SEC. 33, T11N, R13E, UM At effective depth 1054' SNL, 1136' WEL, SEC. 33, T11N, R13E, UM At total depth 1032' SNL, 1157' WEL, SEC. 33, T11N, R13E, UM 5. Type of well: [] Development [] Exploratory [] Stratigraphic [] Service 6. Datum Elevation (DF or KB) KBE = 87.27' 7. Unit or Property Name Prudhoe Bay Unit 8. Well Number Y-30 9. Permit Numbs.er 191-015 ~ 10. APl Number ~/ 50- 029-22135-00-- 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner 9540 feet 9319 feet 9426 feet 9209 feet Length Size 110' 20" 2706' 10-3/4" 9064' 7-5/8" 725' 5-1/2" Plugs (measured) Failed IBP at 9426' (02/92) Junk (measured) Cemented 2304 cu ft CS III, 1056 cuft CS II 1268 cu ft Class 'G' 152 cu ft Class 'G' MD 110' 27O6' 9064' 8815'-9540' TVD 110' 2706' 8862' 8625'-9319' Perforation depth: measured 9097' - 9117', 9202' - 9274', 9284' - 9294' true vertical 8894' - 8913', 8994' - 9063', 9073' - 9082' Tubing (size, grade, and measured depth) 4-1/2", 12.6#, 13Cr TO 8814' RECEIVED 0 3 2001 Alaska 0il & Gas Cons. Commission Anchorage Packers and SSSV (type and measured depth) 7-5/8" X 4-1/2" TIW 'HBBP' packer at 8724'; 4-1/2" Otis SVLN at 2076' 13. Attachments [] Description Summary of Proposal 14. Estimated date for commencing operation August 10, 2001 16. If proposal was verbally approved Name of approver Date Approved Contact Engineer Name/Numbec Thomas McCarty, 564-5697 [] Detailed Operations Program [] BOP Sketch Status of well classifications as: [] Oil [] Gas [] Suspended Service Prepared By Name/Numbec Terrie Hubble, 564-4628 17. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed Thomas UcCarty Title CT Drilling Engineer Date Conditions of Approval: Notify Commission so representative may witness '~ ~'~0 ~,~ ~'~'.,~,.:-~.~ Plug integrity BOP Test X L~cation clearance ' Approval No. ?~O~" c~--~'- Mechanical Integrity Test __ORjj~~~~ed 10- 't,,,Q.'~_ t'¥3'~ o~',, ~:::,~,,~,\~X¢:~--. ~-~ ~,C.t.l~t-G. ~, Approved by order of the Commission J. i~t. Heusser Commissioner Date ~ ["~"~ \.. Form 10-403 Rev. 06/15,88 ! I'-; J I Submit In Triplicate TREE = 4" CNV WELLHEAD= FMC ACTUATOR= OTIS KB. ELEV = 87.27' BF. ELEV = 50.76' KOP = 5800' Max An le = 23 7100' ......... .~.. ................ ~ 71 0._ Datum MD = 9090' Datum TVD = 8800' SS 10-3/4" CSG, 45.5#, NT-80 BTRS, ID: 9.953"H 2706' Y-30 2076' SAFETY NOTES: CFROMETBG & LNR FAILEDBKR BP@ 9426'. I--~4-1/2" OTIS SSSV LANDING NIP, ID = 3.813"I GAS LIFT MANDRELS IMinimum ID = 3.725" @8799' SWN NIPPLE 8719' I--14-1/z' PER Sws NIP, ID: 3.813" I 4-1/2" TBG, 12.6#, 13-CR-TDS, 8810' .0152 bpf, D: 3.958" / I TOP OF TIVV 5-1/2" LNRHGRTIEBACKSLV H 8814' 7-5/8" X 5-1/2"TIW LNR FIGRW/TIEBACK H 8818' 7-5/8" LNR, 29.7#, NT95 HS- ~--~ 9064' NSCC, .0459 bpf, ID = 6.875" PE~,FORATION SUMMA RY REF LOG: WA-BHCA, 02/22/91, SWS-CEr 03/30/91 ANGLEATTOP PERF: Note: Refer to Production DB for histarical perf data SIZE SPF INTERVAL Opn/Sqz DATE 3-3/8" 6 9097 - 9117 O 11/07/91 3-3/8" 6 9202 - 9274 O 04/09/91 3-3/8" 6 9284 - 9294 O 04/09/91 5-1/2"LNR, 17#, 13-CRFL4S, .0232 bpf, ID =4.892" H 9540' 8724' 8778' 8799' 8817' I 880 9426' l'"-~7-5/8" X 4-1/2"TNV HBBPPKR, ID=4.0" I H4-1/Z' PKR SWS NIP, ID= 3.813" I H4_l/Z, PKR SWN NIP, ID= 3.725" HTIW DMY SEALASSY W/O SEALS I HELMD - SVVN NIP ] I--IBAKER BP - CMTD 02/12/92 ] DATE REV BY COMIVISNTS DATE REV BY COMIVENTS 02/27/91 RPD ORIGINAL COMFLETION 01/07/01 SIS-SLT CONVERTED TO CANVAS 01/15/01 SIS-MD INITIAL REDRAW 07/14/01 CH/KAK CORRECTIONS PRUDHOE BAY UNIT WELL: Y-30 PERMIT No: 91-015 APl No: 50-029-22135-00 1357' FNL &43' FWL, Sec. 34, T11N, RG13E BP Exploration (Alas ka) TRFF ~= 4" CIVV WELLHEAD:- FMC ~~6l~; .................................. b~' KB. ELEV = 87.27' ~i~;"~"'; ....................................................... 50.76' KOP = ~'~'~;' Max Angle = 23 @ 7100' Datum MD = 9090' '~b~r~'~6'; ................... §'§56';"§§ Y-30L1 PROPOSED CTD COMPLETION / Safety Notes: Chrome TBG & LNP~ Failed BKR IBP @ 9426' / 2076' I--~4-1/2" OTIS SSSV LANDING NIP, ID= 3.813" GAS LIFT MANDRELS 10-3/4" CSG, 45.5#, NT-80 BTRS, ID = 9.953" I"-] 2706' ~-~ Minimum ID = 3.725" @ 8799' SWN NIPPLE 8719' I---~4-1/2" PKR SWS NIP, ID= 3.813" ITop of Proposed Liner 4-1/2" 'I"BG, 12.6#, 13-CR~TDS, I"-] .0152 bpf, ID = 3.958" ITOP OF TlW 5-1/2" LNR HGR TIBACK SLV 7-5/8" X 5-1/2" TIW LNR HGR W/TIBACK 8810' I~ 8724' 8778' 8799' 8817' 1'-]7-5/8" X 4~1/2" TIVV HBBPPKR, ID= 4.0" I 8807' HELMD' SWN NIP ] 7-5/8" LNR, 29.7#, NT95 HS- I-'~ 9064' I NSCC, .0459 bpf, ID = 6.875" I Mill Window off Flow-by Whipstock I--] 9120' I PERFORATION SUMMARY REF LOG: WA-BHCA, 02/22/91, SWS-CET 03/30/91 ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 3-3/8" 6 9097 - 9117 O 11/07/91 3-3/8" 6 9202 - 9274 O 04/09/91 3-3/8" 6 9284 - 9294 O 04/09/91 5-1/2" LNR, 17#, 13-CRFL4S, .0232 bpf, ID=4.892" I--~ 9540' ~ °°' H 3-1/2,,x 2-7/8. xo I · --- I 13-112"x 2-7/8" Slotted Liner, Uncemented I--I 0!00'1 9'~L.~_~--~ FISH - BKR IBP - lost during attempted retrieval 2/12/92 I DATE REV BY COMMENTS DATE REV BY COMMENTS 02/27/91 RPD ORIGINAL COMPLETION 01/07/01 SlS-SLT CONVERTED TO CANVAS 01/15/01 SIS-MD INITIAL REDRAW 07/14/01 CH/KAK CORRECTIONS 08/02/01 pcr Y-30L1 proposal PRUDHOE BAY UNIT WELL: Y-30L1 Proposed PERMIT No: 191-015 APl No: 50-029-22135-60 1357' FNL &43' FWL, Sec. 34, T11N, RG13E BP Exploration (Alaska) ON OR BEFORE NOVEMBER 2 200,______q0 E W C:LORlXaMFILM,DOC BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 DATE: 09/07/93 T# 84978 BPX/PBU~LOGS Enclosed is your copy of the materials listed below. If you have any questions, please contact BP Well Records at (907) 564-4004. ~F-14 ~0'%~ PRODUCTION LOG ~ 08/29/93 F-2 ~~-5~CL ( ~J~K ~ 08/31/93 /J-08'~'~ CNL/G~ 09/01/93 / J-26~-~ CNL~- 09/01/93 ~ M-23%~-55 ~ERF)~CJ~4k~CCU 09/01/93 ~ Y-17 ~-%q~UBING CUTTERJCCu08/29/93 ~Y-23~'~ PRODUCTION LOG~ 08/30/93 /Y-309~5 PRODUCTION LOG~ 08/30/93 ~ Z-15%~,~ PRODUCTION LOG 08/28/93 9800.00-10252.00 ATLAS 5 " 9580.00-11545.00 ATLAS 5 " 11550.00-12454.00 ATLAS 5 " 9820.00-10566.00 ATLAS 5 " 9430.00- 9905.00 ATLAS 5 " 8850.00- 9050.00 ATLAS 5 " 10950.00-11300.00 ATLAS 5 " 8900.00- 9244.00 ATLAS 5 " 10900.00-11722.00 ATLAS 5 " Information Control Well Records " i STATE OF ALASKA A~KA OIL AND GAS CONSERVATION COMMIb..,.)N 'REPORT OF SUNDRY WELL OPERATIONS 1. Operations pedormed: Operation shutdown Stimulate X Plugging Perforate X 2. Name of Operator Pull tubing Alter casing Repair well ,, Othe6.r Datum elevation {DF or KB) BP £xploration (Alaska) Inc. KB£--87.27 f~t 3. Address P. O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 1357' SNL, 43' EWL, SEC. 34, T11N, R13E At top of productive interval 1098'SNL, 4184' EWL, SEC. 33, T11N, R13E At effective depth 1048'SNL, 1143'EWL, SEC. 33, T11N, R13E At total depth 1032' SNL, 4120' EWL, SEC. 33, T11N, R13E 12. Present well condition summary Total depth: measured true vertical 5. Type of Well: Development X Exploratory Stratigraphic 7. Unit or Property name Service Prudhoe Bay Unit 8. Well number Y-30(41-33-11-13) 9. Permit number/approval number 91-15/ 10. APl number 50- 029-22135 11. Field/Pool Prudhoe Oil Pool 9540'feet Plugs (measured) 9319'feet Effective depth: measured true vertical 9459'feet Junk (measured) 9241 'feet Casing Length Structural -- Conductor 110' Surface 2670' Intermediate 9028' Production -- Liner 725' Perforation depth: measured Size Cemented Measured depth True vertical depth BKB 20" 146 146 10 3/4" 3360 Coldset Ill & II 2706 2655 7 5/8" 1268 cu ft Class G 9064 8811 5 1/2" 152 cu fl Class G 9097'-9117', 9202'-9274', 9284'-9294' 8815-9540 8574-9268 true vertical subsea880658825~890758976~898558995' Tubing (size, grade, and measured depth) 4 1/2" NT13CR, 80- 12.6# @8814 Packers and SSSV (type and measured depth) Packer set @8724 and SSSV set @ 2076 13. Stimulation or cement squeeze summary See Attachment Intervals treated (measured) Treatment description including volumes used and final pressure 14. Re.Dresentative Daily Average Production or In!ection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation Subsequent to operation 790 350 35 695 3900 ~' 4700 950 0 240 372 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil X Gas Suspended Service 17. I hereby ce.rtify that the forego, jng-i~true and, correct to the best of my knowledge. Signed ~ '/ ~...,, /..? ~-'b~.? Title Senior TechnicalAssistant I Form 10-40~, Rev 06/15/88 // ' - SUBMIT IN DUI~LI(~ATE WELL Y-30(41-33-11-13) Frac/Non-RigWorkOver/Reperf 9/07/91 Performed a Hydraulic Fracture. Pumped 47,000# of 16/20 CL. Screened out 7000# behind pipe. Data Frac: 20 bbls 20# Gel Injectivity Test 30 bbls 50# Gel Prepad 120 bbls X-link Gel W/460 Gal ESL(9%) 138 bbls 20# Gel(Average) Flush Frac: 7 bbls 509 Gel Prepad 41 bbls Pad W/155 Gal ESL 2 Dirty 1 PPG 6 Dirty 3 PPG 12 Dirty 5 PPG 16 Dirty 7 PPG 20 Dirty 9 PPG 4 Dirty 2 PPG 9 Dirty 4 PPG 14 Dirty 6 PPG 18 Dirty 8 PPG 98 Dirty 10 PPG 10/24/91 A NRWO(Squeezed Sag Perfs) was performed using the following fluids: 113 bbls PW to Load Well 2 bbls Gel 32 bbls PW 5 bbls EW 10 bbls Cement 22 bbls EW(Spacer) 14 bbls Duo Polymer(Contaminant) 16 bbls PW(Displacement) 133 bbls PW(Reverse Out) 49 bbls PW(Jet Pass) 187 bbls PW(Final Reverse Out) 32 bbls MEOH(Freeze Protection CT) Well Cleaned Out to 9150' 10 bbls Load Fluid Behind Pipe Today 9 bbls Cement Recovered CEMENT: 15.5 PPG GLASS G CEMENT CONTAINING, .2% CFR-3, .017% HR-12, .14 GAL/SK HALAD-344L 1 1/02/9 1 An Ivishak Hydraulic Fracture was performed using the following fluids: DATA FRAC: 18 bbls Diesel 220 bbls 20# Gel Injectivity Test 20 bbls 50# Gel Prepad 110 bbls X-Link Gel W/415 Gal ESL(9%) 138 bbls 20# Gel Flush 50 bbls Diesel Page WELL Y-30(41-33-11-13) FRAC(Ivishak): Attempt#1 Attempt #2 Attempt#3 Attempt#4 20 bbls 50# Gel Prepad 109 bbls Pad with 420 Gal ESL(9%) 29 bbls 1 PPG 12 bbls 2 PPG 16 bbls 3 PPG 51 bbls 4 PPG 334 bbls 5-20# Gel Flush 25 bbls Diesel 20 bbls 50# Gel Prepad 73 bbls Pad with 275 Gal ESL(9%) 20 bbls 50# Gel Prepad 85 bbls Pad with 320 Gal ESL(9%) 25 bbls 50# Gel 20 bbls 50# Gel Prepad(Test Chem Add Sys) 135 bbls Pad W/Out ESL 235 bbls 50# Flush 25 bbls Diesel 20 bbls 50# Gel Prepad 109 bbls Pad with no ESL 29 bbls 1 PPG 16 bbls 3 PPG 21 bbls 5 PPG 24 bbls 7 PPG 24 bbls 9 PPG 137 bbls 50# Gel Flush 12 bbls 2 PPG 19 bbls 4 PPG 24 bbls 6 PPG 25 bbls 8 PPG 151 bbls 10 PPG Pumped 80000# 16/20 CL,78,500# behind pipe under flush by bblds. 11/07/91 The following Sag River interval were reperforated using 3 3/8" guns, 6SPF, random orientation and 60° phasing. 9097' - 9117' MD 1 1/10/9 1 A Sag River Hydraulic Fracture was performed using the following fluids: INJECTIVITY: 220 bbls 20# Gel, 40 bbls DSL FRAC: 16 bbls 50# Gel, 376 bbl 50# Gel X/L, 368 bbl 50# Gel X/L, 36 bbl 20# Gel Total Sand Pumped: 64,900#16/20 CL 3/01/93 fjh Sand Behind Pipe: 35,890# Sand Left in Casing: 29,010# BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 DATE: 02/21/92 T# 83262 BP CASED HOLE FINALS Enclosed is your copy of the materials listed below. If you have any questions, please contact BP Well Records at (907) 564-4004. F-35 ~'~/ TDT-P 02/16/92 #1 F-30 ~f_//o PERF 02/17/92 #1 Y-30 ~t'4~ PRODUCTION LOG 02/14/92 #1 11500.00-11857.00 SCH 11850.00-12400.00 SCH 9000.00- 9399.00 SCH ~ 5 " 5 " Information Control Well Records Adrian J. Martin RECEIVED Alaska 0il & Gas Cons. Commi~lon Anchorage BP EXPLORATION BP Exploration (Alaska) Inc, 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 DATE: 11/13/91 T# 83004 BP CASED HOLE FINALS Enclosed is your copy of the materials listed below. If you have any questions/please contact BP Well Records at (907) 564-4004. Y-30~/~%~/PFC 11/07/91 #1 8600.00- 9119.00 ATLAS 5 " K-02A',~-,~v5 CL 11/06/91 #1 11100.00-11528.00 ATLAS 5 " N-10-~9/ PFC 11/05/91 #1 10100.00-10270.00 ATLAS 5 " Information Control Well Records Adrian J. Martin BP EXPLORATION BP Exploration (Alaska) Inc. 900 Eas[ Benson Rou~evarO P.O. Box 196612 Anchorage. Alaska 99519-6612 (907) 561-5111 DATE: 10/24/91 T.% 82948 BP CASED HOLE FINALS Enclosed is your copy of the materials listed questions, please contact BP Well Records at below. If you have any (907) 564-4004. · F-!4 / CL 09/22/91 ~ 7' ~'~ ;*;- 07¢' CCL 10/05/9i ~ ~"q ~ Z- 3----~-/ CL 08/22/91 ~/. LgP-!! CCL 09/25/91 ~ ¢¢¢Y-04~''' C~ 10/01/91 ~/-~P-!0~ CCL 09/25/91 ?~ ¢~ W-09~ CCL 09/21/91 ~-'/~S-i8~'''' GAS LiFT SURVEY 08/30/9i ~)-~ Y-16/~ . PROD-F 10/04/91 ~¢-'>) A-16/' INJ " "09/01/91 ~'"] E-13¢- P~OD-E 09/24/91 S-07 GAS ~IFT 'S~Y "09/22/91 ~t-~6~ X-17/ T~ 10/05/91 . 71-6¢ Y-01~/'' LE~ DET 09/29/91 9~'~ s-25/' PITS 09/22/91 ~-~¢ Y-23 / LE~ DET 10/04/91 ~'~:~; -- R-04. ~'' GAS LI=~. = SURLY 09/26/91 ~¢-6~ Y-01 ~ LE~ DET 09/27/91 91,]~Y-30 ¢ SPI~ER 10/02/91 9¢ A-t]~ Y-29 ~ SPI~ER 10/03/91 ~"¢¢U-03¢~ INJ 09/30/91 ~¢-/¢~ U-05~' INJ 10/01/91 3 '~;"~U- I~~ INJ 10/07/91 ~"- TfX-tl~' ZNJ 10/06/91 ~*~9 M-21 ~ TE~ 10/07/91 ::~'' R-27 PiTS 09/27/91 ':' ~ X-06~. ~=J~ 09/28/91 ~,~'~/ U-09~- !NJ !0/01/9~ ~ N-03 C~ 10/02/91 ~.~/~ J-il- LE~ DET 10/03/91 g~-f~ F-03 ~ JE~LRY 5 ,, ~'~ J-i3 '~ GAS ENTRY. JEWELRY 5 " " W- "- /EWEL~ 'f 5 ', 9047.00-!0650.00 CAMCO 5 " 13950.00-14512.00 C£-24C0 ~ 12101.00-13175.00 CAMCO 5 " 9070.00- 9621.00 CAMCO 5 " 8869.00-10162.00 CAMCO 5 " 8780.00- 9331.00 CAMCO 5 " !4200.00-14987.00 CAMCO 5 " 1800.00- 4550.00 CAMCO 2/5" 9000.00-.9405.00 CAMCO 5 " <-<'>i/~210470.00-10900.00: CAMCO 5 " i0900.00-ii290.00 C~4CC 5 " '~'~ .' 375,00-11191.00 CAMCO.~/'2/5" 8800.00- 9812.00 CAMCO 5 " 7400.00- 7600.00 CAMCO 5 " 9100.00- 9547.00 CAMCO 5 " 9770.00-10150.00 CAMCO 5 " 100.00- 8550.00 CAMCO 2 " 170.00-11350.00 CAMCO 2 " 9000.00- 9230.00 CAMCO 5 " 12500.00-13125.00 CAMCO 5 " 9150.00- 9520.00 CAMCO 5 " 9050.00- 9385.00 CAMCO 5 " 9650.00-10078.00 CAMCO 5 " 9050.00- 9400.00 CAMCO 5 " 8300.00- 9116.00 CAMCO 5 " 9100.00- 9~30.00 C~CO 5 " 9450.00- 9734.00 C2~CO 5 " !2000.00-!2~50.00 CAMCO 5 " 10750.00-11297.00 CAMCO 5 " 8996.00-11779.00 .CAMCO 5. " 9350.00- 9650.00 .¢A.,MCO 5 " 30/91 #1 10800.00-111~.0,0~AMCO 06/91 !0039.00-t1649.00 · , ~00 O0-l~ O0 C~,~O 10/06/91 10/07/91 900 0-10143.00 CA=MC0 9300.00- 9800.00 CAMCO Well Records Adrian J. Martin BP EXPLORATION BP Exploration (Alaska) Inc, 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (9O7) 561-5111 RECEIVED OCT 18 1991 ~aska Oil & Gas Cons. Commission Anchorage BP CASED HOLE FINALS Enclosed is your copy of the materials listed below. If you have any questions, please contact BP Well , Records at (907) 564-4004. . DATE: 10/10/91 T$ 82910 ~,%M_t6.~.G PITS 09/20/91 ~1 10860.00 ~-$~ B-22w' PITS 09/07/91 ~1 10800.00 ~t-tf Y-30~'" CCL 09/16/91 $1 8650.000 ~0-~ Y-2'9u'/ CCL 09/16/91%1 10131.00 ~3-3~jN-19 ~- CCL 09/25/91 ~1 9000.000 ~-~5'W-38/ GAS LIFT SURVEY 09/15/91 ~1 200.0000 ~fZ-/~&B-21' u' PROD-F 08/13/91 ~1 9550.000 ~1-90 Y~26--' GAS LIFT SURVEY 09/16/91 #1 5400.000 ~'30 X-26w/ INJ 09/24/91 ~1 9150.000 ~A-05~ CL 09/07/91 ~1 9100.000 wg-~_ K-06~- INJ 09/11/91 ~1 9800.000 %~o~3SKL02Au/ PROD-F 08/24/91 ~1 11000.00 ~9')~ w-09~' GR 09/11/91 ~1 14200.00 ?$~-&/E--03 / PROD-F 09/25/91 ~1 12450.00 9o-~'~ W-16~/ LEAK DET 09/19/91%1 2000.000 ~fg-/~-R-22~''' PROD-F 08/20/91 ~1 10350.00 ~'/-~0 B-32v/ TEMP 09/15/91 ~1 10275.00 ~-o7 c-04v PROD-F 08/24/91 #1 10350.00 ~-IU~ G-2 6~ CL 09/04/91 $1 10200.00 ~-~B-20J LEAK DET 08/23/91 #1 7992.000 ~D-I~P-20/ LEAK DET 08/23/91 #1 11800.00 7~ R-04u/, GAS LIFT SURVEY 09/04/91 ~1 3200.000 ~H-18 ~ PROD-F 09/25/91 $1 9250.000 ~'~ w-37~ PROD-F 09/15/91 #1 9800.000 ~-{9_~S-0'5/ CL 09/15/91 #1 9500.000 ¥9-1~'~ F-2 %/ TEMP 09/03/91 #1 11800.00 \.~% M-16~' PROD-F 08/26/91 ~1 10850.00 ,$R-04 ~/ GAS LIFT SURVEY 08/26/91 #1 2500.000 ~,GO B-32~ INJ 09/06/91 ~1 10240.00 ~9,~.0W-26~/ JEWELRY LOG 08/22/91 #1 CAMCO 5 $$-I~q W-11~ JEWELRY LOG 08/21/91 #1 CAMCO 5 ~_~ G-01u/ 08/23/91 #1 ~.. CAMCO 5 10900. 11444.00 CAMCO 11140.00 CAMCO 9240.000 CAMCO 12500.00 CAMCO 9755.000 CAMCO 4000.000 CAMCO 98~0.000 CAMCO 10986.00 CAMCO 9680.000 CAMCO 10941.00 CAMCO 10279.00 CAMCO 11480.00 CAMCO 15162.00 CAMCO 12685.00 CAMCO 11270.00 CAMCO 10720.00 CAMCO 10953.00 CAMCO 10660.00 CAMCO 10522.00 CAMCO 9062. 000 CAMCO 12553 . 00 CAMCO 8639. 000 CAMCO 9722. 000 CAMCO 10100.00 CAMCO 10224.00 CAMCO 12175.00 CAMCO 11150.00 CAMCO 9821.000 CAMCO 10807.00 CAMCO 00 11758.00 12550.00 9950.000 13284.00 10120.00 5 5 5 5 5 2 5 5 5 5 5 5 5 5 2/5 5 5 5 5 5 5 5 5 5 5 5 5 2/5 5 BP EXPLORATION BP Exoiorat~on (AlasKa)Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage. Alaska 995!9-6612 (907~ 561-5111 DATE: 10/07/91 T9 82899 BP PRESSURE REPORTS Enclosed is your copy of the materials listed below. If you have any questions, please contact BP Well Records at (907) 564-4004. . . ~-' H-24f PRES 07/31/91 c7-;~ J-09~' PRES 07/31/91 ~'/~ v-~0 J PRES 05/25/91 / ~ ~ ~,~-'-~ C-35,¢ PRES 08/04/91 ,~ -' ',J C-02~ PRES 07/31/91 y:-' F-!7 ~ PRES 08/13/91 ~-/f~ F-42~ PRES 09/04/91 ~-~$ J-03~ PRES 09/04/91 ~ ,~ G-24v'~ PRES 09/03/91 ~'~) A-16~- PRES 09/01/91 i~',-~1;-$ F'44 ~ ~,~.'TPRES. 09/04/91 ~/-~ F-45 -' PRES 09/02/91 ~/i-i'u' P-03~ PRES 09/10/91 ,¢1- $~ M-16~'' PRES 08/26/91 ~.r$ F-03 ,--- PRES 08/30/91 ~,~- ~.~ R-04'~' PRES 08/26/91 ~-f~ G-11'~ PRES 08/31/91 }$-/~$ W-11~ PRES 08/21/91 ~J'">~ Z-28-- PRES 08/22/91 ¢~ '"'~f F-38~ PRES 09/06/91 ;}~.,? t G_26 ...~ PRES 09/04/91 3~~''~ G-32,~' PRES 09/04/91 .Tj-~~' G-05 PRES 09/03/91 ~'-~ B-32'~ PRES 09/15/91 ~ ~ F-24 - PRES 09/03/91 REF,~ REF.% REF,% REF,% REF~ REF~ REF# REF% REF~ BHP FLOW STATIC SURVEY STATIC SURVEY STATIC SURVEY STATIC SURVEY STATIC SURVEY GRADIENT BHP STATIC BHP STATIC BHP STATIC REF¢ BHP STATIC REF~ BHP STATIC REF~ BHP FLOW REF9 BHP STATIC REF~ BHP FLOW REF~ BHP STATIC REF$ BHP STATIC REF~ BHP STATIC REF~ BHP STATIC REF~ BHP STATIC REF~ BHP STATIC REF~ BHP STATIC REF~ BHP STATIC REF~ BHP STATIC HLS HLS HLS HLS HLS HLS CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO CAMCO information Conurci Well Records Adrian J. Martin BP EXPLORATION BP Exploration (Alaska) Inc, 900 East Benson Boulevard PO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: DISTRIBUTION Date :06/11/91 T#:82498 FROM: Information Control Well Records LR2-1 SUBJECT: BP CASED HOLE FINALS Enclosed is your copy of the material listed below, if you have any questions, please contact BP Well Records at (907) 564-4445. G-25 Prod-F 05/25/91 Y-16 CL Inflatable -.~.~ _ Bridge Plug 05/26/91 ~'\~./\-q~ Y-29 Temp 05/24/91 Y-30 Prod- F 05/22191 10250-10490 Camco 5" #1 .8890-9500 Camco 5" #1 12804-13433 Camco 5" #1 8950-9439 Camco 5" Distribution: ARCO CHEVRON EXXON GEOSCIENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES TO: BP EXPLORATION ARCO CHEVRON EXXON MOBIL PHILLIPS STATE OF ALASKA TEXACO GEOSCIENCE ARCHIVES BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO, Box 196612 Anchorage, Alaska 99519-6612 ~.~_~ (907) 561-5111 _~-'~.~ ~ ~te:02/25/91 ¢ 4 -,~ ~--r,~:82141 'c~.'' ~ ~ BP OPEN HOLE FINAL Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. Y-30 BHC/GR 02/22/91 #1 9070-9517 ATLAS 2"/5" Y-30 CNL/GR 02/22/91 #1 9070-9489 ATLAS 2"/5" Y-30 DIFL 02/22/91 #1 9070-9546 ATLAS 2"/5" Y-30 GR/INCASING 02/22/91 #1 7600-9070 ATLAS 2"/5" Y-30 FMT "~' ....~ #1- 9105-9400 .~-'"' ^~ Ug..I g.~,I ;3 i *** GEOS/ARCO/EXXON/ARCHIVES ONLY. . . Y-30 SS TVD 02/22/91 # 1 9070-9546 ATLAS 1 "/2" STATE ONLY: Magnetic Single Shot Directional Survey Gyroscopic Directional Inforation Control Well Records LR 2-1 J..Dietz/S. McCurry Date: Job#: Date: Job#: ' ' STATE OF ALASKA ~ 0 ~ ! ~ l~~j7 ..... ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. StatUs of Well Classification of Service Well OIL [] GAS [] SUSPENDED [] ABANDONED [] SERVICE [] ~). Name of Operator 7. Permit Number BP Exploration 91-15 3. Address 3. APl Number P. O. Box 196612, Anchorage, Alaska 99519-6612 . . ._~.,~ ............................... : 5o- 029-22135 4. Location of well at surface ~,, ~.~ ~ ,~...,r ...... ~ C~ ..... ~ [.C~.,~'.,~'~ ..... !~.~; 9. Unit or Lease Name 1357' SNL, 43' EWL, SEC. 34, T11N, R13E ~ ~ '~'; ~, ~ t)") ,i ~-;~ ~ ! '~f~i~i~'~ i Prudhoe Bay Unit At Top Producing Interval ~,,~ 10. Well Number 1098' SNL, 4184' EWL, SEC. 33, T11N, R13E ~, ~ 1Y'30(41'33'11'13)1. Field and Pool At Total Depth ... Prudhoe Bay Field/Prudhoe Bay Pool 1032' SNL, 4120'EWL, SEC. 33, T11N, R13E 5. Elevation in feet (indicate KB, DF, etc.) ~6. Lease Designation and Serial No. KBE = 87.27' . ADL 28287 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth. if offshore ,16. No. of COmpletions 02-08-91 ' 02-22-91 ~ 04-08-91 II1N/A feet MSL 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD) 19. Directional Survey 120. Depth where SSSV set 121. Thickness of Permafrost 9540'MD/9319'TVD -~ 9459'MD/9241'TVD YES [] NO [] ~ 2076'feet MD I 1986' 22. Ty~e Electric or Other Logs Run GR/CNL/BHC/DIL, RFT 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BO'FI'OM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" Surface 11 O' 10-3/4" 40.5# L-80 Surface 2706' 13-1/2" 3360 Coldset III & II .7-5/8" 29. 7# L-80 Surface 9064' 9-7/8" 1268 cu fl Class G 5-1/2" 17# NT80 8815' 9540' 6-3/4 .... 152 cuft Class G 24. Perforations open to Production (MD+TVD of Top and Bottom and >_5. TUBING RECORD interval, size and number) SIZE DEPTH SET IMDI PACKER SET {MDI Schlumberger 3-3/8" @ 6 spt 4-1/2" NT13CR 8814' 8724' MD TVDss 80-12. 6# 26. ACID, FRACTURE. CEMENT SQUEEZE, ETC. 9097'-9117' 8806'-8825' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 9202'-9274' 8907-8976' 10-3/4"X 7-5/8" Downsqueeze annulus with 100 bbls 9284'-9294' 8985'-8995' Dry Crude 27. ~ PRODUCTION TEST Date First Production IMethod of OPeration (Flowing, gas lift, etc.) April 09, 1991 I Flowing ' Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE JGAS-OIL RATIO TEST PERIOD I~ I Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. 24-HOUR RATE I~ 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips, and presence of oil. gas or water. Submit core chips. RECEIVED ~AY ~ 4 t991 Anchorage Form 10-407 Submit i~ duplicate Rev. 7,1-80 CONTINUED ON REVERSE SIDE 29. 30. GEOLOGIC MARKERS FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEFTH TRUE VERT. DEPTH GOR, and time of each phase. Sag 9097' 8894' Shublik A 9117' 8913' Zone 4 9203' 8995' 31. LIST OF ATTACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge 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 Wells: 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". Form 10-407 BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Monday. February 11,1991 WELL: Y-30 (41-33-11.13) APl No. 50-029-22135 Day: 3 Depth at 0600 Hrs. = 72 Hour Footage = 2,715 Ft. 2,6O5 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig..#3 12538O Current Operation: N/U BOP, Modify Kill and Choke Lines. Summary of Last 72 Hours: Accepted rig at 0700 2/8/91. Spudded well at 1300 2/8/91. Drilled 13-1/2" hole with surveys to 2715'. Ran and cemented 10-3/4" casing. N/U BOP. Modify kill and Choke lines. Mud Type Mud Weight Spud 9.2 #/gal Viscosity 34 Sec. .P V YP Fluid Loss Solids TemD 8 2 cc 600% °F Survey Depth Angle Direction TVD N-S E-W Dog Leg Section Coordinate Coordinate °/100'. Alaska 0it 8,. Gas Oons. Oom~tsSl~lt~ An~bora~ Reviewed By: ,.FILS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Tuesday, February_ 12. 1991 WELL: Y-30 (41-33-11-13) APl No. 50-029-22135 Day: 4_ Depth at 0600 Hrs. = 24 Hour Footage = 3,560 Ft. 845 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost: Alaska United Rig #3 12538.0 Current Operation' Drilling Summary of Last 24 Hours: Tested BOP's. P/U BHA. RIH and tested casing to 3000 psi - OK. Drill out and perform LOT. Drilled 9-7/8" hole with surveys to 3560 '. Mud Type Mud Weight Viscosity Gel/Water 9.0 #/gal 36 Sec. pv. YP Fluid Loss Solids 1 0 4 cc 500% Temp 48 OF Survey Depth Angle Direction TVD N-S E-W Sec'(i0n ,Coordinate Coordinate Dog Leg ,°/100' Reviewed By: RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Wednesday. February 13. 1991 WELL: Y-30 (41-33-11-13) APl No. 50-029-22135 Day: 5 Depth at 0600 Hrs. = 24 Hour Footage = 5,380. Ft. 1,904 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125380 Current Operation: Drilling 9-7/8" hole. Summary of Last 24 Hours' Drilled 9-7/8" hole with surveys to 53380'. Mud Type Mud Weight Viscosity LSND 9.2 if/gal 38 Sec. PV Y.P Fluid Loss Solids 14 5 7.6 cc 600% Temp 62 OF Survey Deoth Angle Direction 9 4,460 0.60 N86.4W TVD 4,460 N-S E-W Section Coordinate Coordinate 2 11 4 Do Lg_L o/100' Reviewed By: RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Thursday. February. 14. 1991 WELL: Y-30 (41-33-11-13~ APl No. 50-029-22135 Day: 6 Depth at 0600 Hrs. = 24 Hour Footage = 5,755 Ft. 375 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Riq #3 125380 Current Operation' RIH Summary of Last 24 Hours: Drilled 9-7/8" hole to 5425'. P/U motor, kicked off and drilled 9-7/8" hole with surveys to 5755'. Mud Tyoe. Mud Weight Viscosity .P V. Ligno. 9.4 #/gal 39 Sec. 1 5 YP Fluid L088 Solids 8 7.6 cc 650% Temp 63 OF Survey Depth Angle DirectiQn TVD 14 5,662 9.70 S86.3W 5,661 N-S E-W Section Coordinate Coordinate 24 0 25 Dog ...Leg o/100' Reviewed By: RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Friday. February 15. 1991 WELL: Y-30 (41-33-11.13) APl No. 50-029-221 35 Day: Z Depth at 0600 Hrs. = 24 Hour Footage = .6,188 Ft. 433 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125380 Current Operation' Ream motor run. Summary.. of Last 24 Hours: Continued to kick off with motor to 6188' Made up rotary assembly and reamed motor run. Mud Type Mud Weight Visc0sitv LIGNO 9.4 g/gal 41 Sec. pv YE Fluid Los~ Solids 16 8 7.6 cc 600% Temo 65 OF Survey Depth Angle D...irectign TVD 19 6,109 19.00 N89.9W 6,095 N-S E-W Section Coordinate Coordinate 125 2 128 Dog Leg °I100, Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Monday. February_ 18. 1~1 WELL: Y-30 (41-33-11-13) APl No. ~0-029-22135 Day: .1 0. Depth at 0600 Hrs. = 72 Hour Footage = 8.342 Ft. 2,154 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Ala, ska United Rig #3 125380 Current Operation' Drilling. Summary_ of Last 72 Hours; Drilled to 8342'. Mud Type Ligno Mud Weiaht 9.6 #/gal Viscosity 41 Sec. PV YP. ~ Solids Temo 17 13 7.4 cc 6.2% 67 °F Survey ~ Angle N-S, E-W Section Coordinate Coordinate Dog, Leg o/100, Reviewed By: BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Tuesday. February_, 19, 1991 WELL: Y-30 (41-33-11-13) APl No. 50~029-221 35 Day: 11 Depth at 0600 Hrs. = 24 Hour Footage = 9,O92 Ft. 75O Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig,#3 125380 Current Operation' POOH to run 7-5/8" casing. Summary of Last 24 Hours. L Drilled to 9092'. Mud Type Mud Weight Viscosity Ligno 9.3 #/gal 38 Sec. ..P, V YP Fluid LOSS Solids 13 8 7.0 cc 5% Temp 70 OF Survey Depth Angle Direction TVD, N-S E-W Section Coordinate Coordinate Dog Leg °/100' Reviewed By: ,..~'~ BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: As of 0600 Hrs. Wednesday. February 20. 1991 WELL: Y-:30 (41-3~-11-13) Day: 1~ Depth at 0600 Hrs. = 24 Hour Footage = 9.092 Ft. OFt. PRUDHOE BAY, UNIT APl No. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = 50-029-22135 ,,, Alaska United Rig, #3 125380 Current Operation: Cement 7-5/8". Summary_ of Last 24 Hours: Ran and cemented 7-5/8" csg. ,, Mud Tvoe' - . Ligno ,, Mud Weioht 9.4 #/gal Viscosity 40 Sec. , PV Yp ~ Solids Temo 13 8 7.0 cc 5% °F Survey D._Ep. tb Angle N-S E-W Doa Lea -- -- Section Coordinate Coordinate °/100! Reviewed By: BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: As of 0600 Hrs. Thur$day, February_ 21. 1991 WELL: .Y.-30 (41-33-11-13~ Day: 13 Depth at 0600 Hrs. = 9.091 Ft. 24 Hour Footage = O Ft. PRUDHOE BAY UNIT APl No. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = 50-029-22135 Alaska United Ria #3 Current Operation: PU 6-3/4" BHA. Summary of Last 24 Hours: Ran packoff & tested same. No test. Changed out & tested ok. LD 5" DP. Mud Type Mud Weight .,,Viscosity Ligno 9.4 #/gal 41 Sec. Survey ~ Angle J~r. eCt[.QE 'I'VD P V . YP i~.~d.cLL.g..ss ~ Temo 13 10 7.6 cc 5% °F ,, , N-S E-W Dog Leg Section ~..0ordinate Coordinate °/100, Reviewed By:'~' BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT, As of 0600 Hrs. Friday, February_ 22. 1991 WELL: Y-30 (41-33-11-13) APl No. 50-029-221 35 Day: ,,1, 4 Depth at 0600 Hrs. = 24 Hour Footage = 9,520 Ft. 428. Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125380 Current Operation' Drilling. Summary of Last 24 Hours: Pick up 3-1/2". Drilled out 9-5/8". Drilled to 9520'. Mud Type Mud Weight Viscosity Ligno 8.8 #/gal 39 Sec. P V ...YP Fluid Loss Solids 1 0 7 6.8 cc 3% Temo 80 OF Survey ,Depth Angle Direction TVD, N-S E-W SectiQn .Coordinate Coordinate Dog Leg o/100' Reviewed By: · ~,2¢/*~ BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Monday,. February_ 25, 1991 WELL: Y-30 (41-33-11-13), AP! No. 50-029-22135 Day: 1,.7. Depth at 0600 Hrs. = 72 Hour Footage = 9,540 Ft. 2O, Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125380 Current Operation' Displacing hole to brine water. Summary of Last ,7,,.2 Hours: Drilled to 9540'. Logged. Ran 5-1/2" liner and cemented. Cleaned out liner and i~resSure tested. MudType Mud Weight Viscosity P V. YP Fluid Loss Solids Temp Ligno 9.1 #/gal 41 Sec. 1 3 5 10.5 cc 5% °F Survey Depth An_.s.ng~ Direction N-S E-W Dog Leg TVD Section Coordinate Coordinate °/100' Reviewed By: ~5(:" BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Tuesday. February_ 26. 1991 WELL: Y-30 (41-33-11-13), APl No. .: 50-029-22135 Day: 18 Depth at 0600 Hrs. = 24 Hour Footage = 9,459 Ft. Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 12538O Current OPeration' Laying down 3-1/2" D/P Summary of Last 24 Hours: Turn well over to filtered brine. POH. RIH w/polish mill and polish tie back sleeve. POH. MudType Mud Weight Viscosity .,P V, YP Fluid Loss Solids Temp Brine 8.8 #/gal Sec. cc °F Survey Deoth Angle Dire(;ti0n N-S E-W Dog Leg TVD. Section Coordinate Coordinate .°/100' Reviewed By: MJS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Wednesday. February 27. 1991 WELL: Y-30 (41-33-11-13) AP! No. ,,50-029-22135 Day: ,! 9 Depth at 0600 Hrs. = 24 Hour Footage = 9,459 Ft. Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 12538O Current Operation: N/U tree Summary of Last 24 Hours: Ran and landed 4-1/2" completion. N/U adapter flange and tree. Mud Tvoe Mud Weiaht Viscosity P V ' Brine 8.8J/gal Sec. ,YP Fluid Loss Solids Temp cc °F Survey Deoth Anale Direction TVD N:S E-W ' Dog Leg Section Coordinate Coordinate °/100' Reviewed By: MJS BP EXPLORATION (ALASKA), INC. DALLY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Thursday, February_ 28, 1991 WELL: Y-30 (41-33-11-13) APl No. 50-029-22135 Day: 20 Depth at 0600 Hrs. = 24 Hour Footage = 9,459 Ft. Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125380 Current Operation: Moving to Y-33 Summary of Last 24 Hours: Installed and tested tree. Freeze protected tubing and annulus with diesel. Set packer. Pressure tested tubing and annulus. Freeze protected 10-3/4"/7-5/8" annulus with 20bbls diesel. Rig released from Y-30 at 20.00hrs Mud Type Mud Weight Viscosity P V YP Fluid Loss Solids Temp Cf/gal Sec. cc °F Survey Depth Angle Direction N-$ E-W Dog Leg TVD Section Coordinate Coordinate °/100' Reviewed By: MJS I TELECO] Teleco Oilfield Sel"~'~s of Alaska Inc. 6116 Nielson Way Anchorage, AK 99502 (907) 562-2646 March 5, 1991 JOB #804 BP EXPLORATION (ALASKA) INC. WELL: Y-30 PRUDHOE BAY / RIG: AUDI #3 / Attached please find a copy of the computer calculated MWD directional surveys for the above mentioned well. Teleco .appreciates this opportunity to provide service to BP Exploration (Alaska) Inc. Teleco is committed to providing the highest quality MWD Service and we would welcome any comments or questions concerning these surveys or any of our other services. Sincerely, Jonathan G. Mapes Field Operations Supervisor JGM/el Enclosures A,~llJ'r COMPANY TELECO OILFIELD SERVICES SURVEY CALCULATIONS Date 02/21/91 Company: BP EXPLORATION Well: Y-30 Location: PRUDHOE BAY Rig: AUDI 3 TELECO Job # Grid Correction: Magnetic Declination: Total grid correction: Proposed Direction: 804TAK 0.0° 30.0° 30.0° 280.9° MINIMUM CURVATURE CALCULATION Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' TIE INTO SURFACE 0 0 0.0 0.0 0.01 -0.01 0.01N 0.01E 0.01 N 45.00E 0.00 TIE INTO SPERRY-SUN GYRO 531 531 0.3 177.0 531.00 -0.29 1.20S 0.06E 1.20 S 2.86E 0.00 975 444 0.3 72.0 975.00 -1.37 1.87S 1.03E 2.13 S 28.91E 0.09 1501 526 0.0 0.0 1501.00 -2.36 1.47S 2.12E 2.58 S 55.34E 0.05 2002 501 0.3 216.0 2001.99 -1.89 2.31S 1.48E 2.74 S 32.68E 0.05 PAGE 1 Company: .BP EXPLORATION, Well: Y-30, Location: PRUDHOE BAY, Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 2470 468 0.3 217.0 2469.99 -1.01 3.95S 0.27E 3.96 S 3.85E 0.00 TELECO MWD SURVEYS 3046 576 0.3 183.6 3045.98 -0.64 6.46S 0.59W 6.48 S 5.18W 0.03 3516 470 0.2 203.7 3515.98 -0.62 8.44S 0.99W 8.50 S 6.71W 0.03 3985 469 0.3 242.0 3984.97 0.52 9.76S 2.41W 10.05 S 13.84W 0.04 4460 475 0.6 273.6 4459.96 3.96 10.19S 5.99W 11.82 S 30.43W 0.08 5000 540 0.9 53.2 4999.94 3.91 7.47S 5.41W 9.23 S 35.91W 0.26 5372 372 0.6 24.0 5371.91 1.50 3.94S 2.28W 4.55 S 30.04W 0.13 5479 107 2.7 267.3 5478.87 3.82 3.55S 4.57W 5.79 S 52.16W 2.82 5571 92 6.2 261.7 5570.58 10.62 4.37S 11.65W 12.44 S 69.45W 3.83 5662 91 9.7 266.3 5660.69 22.69 5.57S 24.17W 24.80 S 77.01W 3.91 5733 71 9.2 261.7 5730.73 33.84 6.78S 35.75W 36.39 S 79.26W 1.28 5827 94 11.9 267.0 5823.13 50.35 8.37S 52.87W 53.53 S 81.00W 3.05 5922 95 14.1 272.2 5915.70 71.30 8.44S 74.22W 74.70 S 83.52W 2.62 6016 94 16.3 271.5 6006.40 95.64 7.65S 98.85W 99.15 S 85.57W 2.35 PAGE 2 Company: BP EXPLORATION, Well: Y-30, Location: PRUDHOE BAY, Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 6109 93 19.0 270.1 6095.01 123.40 7.28S 127.05W 127.26 S 86.72W 2.95 6190 81 21.0 268.4 6171.12 150.54 7.67S ~ 154.76W 154.95 S 87.16W 2.57 6284 94 21.4 269.4 6258.76 183.81 8.32S 188.75W 188.94 S 87.48W 0.57 6377 93 21.8 270.4 6345.23 217.42 8.37S 222.99W 223.14 S 87.85W 0.58 6469 92 22.0 270.8 6430.58 251.19 8.01S 257.31W 257.43 S 88.22W 0.28 6563 94 22.3 271.0 6517.64 286.10 7.45S 292.75W 292.85 S 88.54W 0.32 6663 100 22.4 271.2 6610.13 323.58 6.72S 330.77W 330.84 S 88.84W 0.13 6757 94 22.8 272.0 6696.91 359.23 5.71S 366.88W 366.92 S 89.11W 0.54 6859 102 23.0 272.0 6790.87 398.46 4.31S 406.55W 406.58 S 89.39W 0.20 6954 95 23.2 272.8 6878.25 435.33 2.75S 443.80W 443.81 S 89.65W 0.38 7049 95 23.4 274.5 6965.50 472.61 0.35S 481.30W 481.30 S 89.96W 0.74 7124 75 23.4 275.5 7034.34 502.24 2.24N 510.97W 510.97 N 89.75W 0.53 7219 95 22.8 276.9 7121.72 539.39 6.26N 548.02W 548.06 N 89.35W 0.86 PAGE 3 Company: BP EXPLORATION, Well: Y-30, Location: PRUDHOE BAY, Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 7312 93 22.2 278.0 7207.64 574.91 10.88N 583.31W 583.41 N 88.93W 0.79 7405 93 21.6 279.0 7293.93 609.57 16.00N 617.61W 617.82 N 88.52W 0.76 7500 95 20.7 280.3 7382.53 643.83 21.74N 651.40W 651.77 N 88.09W 1.07 7594 94 20.2 283.4 7470.61 676.66 28.48N 683.54W 684.13 N 87.61W 1.27 7687 93 19.5 285.0 7558.08 708.18 36.22N 714.15W 715.07 N 87.10W 0.95 7781 94 19.2 287.1 7646.77 739.20 44.83N 744.08W 745.43 N 86.55W 0.80 7874 93 19.2 287.6 7734.60 769.59 53.95N 773.27W 775.15 N 86.01W 0.18 7967 93 19.2 289.5 7822.43 799.89 63.68N 802.26W 804.79 N 85.46W 0.67 8066 99 19.1 291.6 7915.95 831.90 75.07N 832.67W 836.04 N 84.85W 0.70 8157 91 19.3 293.3 8001.89 861.21 86.50N 860.32W 864.66 N 84.26W 0.65 8259 102 19.3 294.2 8098.16 894.07 100.08N 891.18W 896.78 N 83.59W 0.29 8341 82 19.3 295.3 8175.55 920.38 111.42N 915.79W 922.54 N 83.06W 0.44 8435 94 19.2 296.9 8264.29 950.28 125.06N 943.62W 951.87 N 82.45W 0.57 PAGE 4 Company:. BP EXPLORATION, Well: .Y-30, Loc~tion: PRUDHOE BAY,.Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' 8536 101 19.0 297.9 8359.73 981.97 140.27N 972.97W 983.03 N 81.80W 0.38 8631 95 18.9 301.2 8449.58 1011.19 155.48N 999.80W 1011.82 N 81.16W 1.13 8730 99 18.5 303.3 8543.36 1040.74 172.41N 1026.65W 1041.02 N 80.47W 0.79 8824 94 18.1 306.8 8632.61 1067.66 189.34N 1050.80W 1067.73 N 79.79W 1.24 8919 95 17.6 309.0 8723.03 1093.59 207.22N 1073.78W 1093.59 N 79.08W 0.89 9008 89 17.2 310.6 8807.96 1116.88 224.26N 1094.23W 1116.97 N 78.42W 0.70 PAGE 5 TEE~]O O~lf~eld Ser'v~ce~ PLAN VIE~ 3200 BP EXPLORATION Y-30 PRUDHOE BAY AUDI 3 JOB# 804TAK/O0 SCALE: `1 inch = 400 feet o 0 28OO 2400 2000 ~600 z 0 ~_2oo S 800 400 400 2000 '1600 ~.200 800 400 0 WEST(ft) 400 1000 2OOO -~3000 4000 >5000 6OO0 7000 BO00 9OOO -1000 TEL("- ,O Oilfield Sepv ces VERTICAL PROJECTION 1000 2000 3000 4000 5000 53t ' .25 cleg 975 ' .25 deg 1501 ' .01 cleg 2002 ' .25 cleg 2470 ' .25 cleg BP EXPLORATION Y-30 PRUDHOE BAY AUDI 3 JOB# 804TAK/O0 SCALE: I inch = 1000 feet 3046 ' ,3 (:leg 3516 ' .2 deg 3985 ' .3 aeg 4460 ' .6 deg 5000 ' .9 deg 5372 ' .6 deg 5662 ' 9.7 deg 5922 ' 14.3 deg 6390 ' 21.01 aeg 6469 ' 22.01 deg 6757 ' 22.8 deg 7049 ' 23.4 deg 7312 ' 22.2 deg 7594 ' 20.2 aeg 7874 ' 19.2 deg B157 ' 39.3 deg 8435 ' 19.2 deg 8730 ' 18.5 aeg 9008 ' 17.2 deg VERTICAL SECTION (ft) GREAT LAND DIRECTIONAL DRILLING, INC. REPORT OF SUB-SURFACE DIRECTIONAL SURVEY BP EXPLORATION COMPANY Y-30 WELL NAME PRUDHOE BAY, ALASKA LOCATION AL291D7 MWD 02/19/91 JOB NUMBER TYPE SURVEY DATE DIRECTIONAL .~ ~ NAME TITLE SIGNATURE 531 FT. 9092 FT. DEPTH INTERVAL FROM TO 02/06/91 02/18/91 DATE SURVEY TAKEN FROM TO THIS IS A RECORD OF A SUB-SURFACE SURVEY OF YOUR WELL WE HAVE RETAINED A COPY OF YOUR SURVEY REPORT IN OUR FILES FOR YOUR CONVENIENCE; HOWEVER, SHOULD YOU SO DESIRE, ALL COPIES OF THE SURVEY REPORT WILL BE FORWARDED TO YOU ON WRITTEN REQUEST. ALL SURVEYS ARE KEPT IN A LOCKED FILE AND ARE HELD IN STRICTEST CONFIDENCE. GREAT LAND Client..,.: Field ..... : Well ...... : Section at: Engineer...- DIRECTIONAL DRILLING, BP EXPLORATION PRUDHOE BAY Y-30 N,79.14,W DON LEJUENE S MEAS C DEPTH 3 531 3 975 3 1501 3 2002 3 2470 INCLN ANGLE 0.25 0.25 0.00 0.25 0.25 3 3046 0.30 3 3516 0.20 3 3985 0.30 3 4460 0.60 3 5000 0.90 3 5372 0.60 3 5479 2.70 3 5571 6.20 3 5662 9.70 3 5733 9.20 3 5827 11.90 3 5922 14.10 3 6016 16.30 3 6109 19.00 3 6190 21.00 3 6284 21.40 ^Survey Codes: (PY30D B1.17) VERTICAL-DEPTHS BKB SUB-SEA 531.0 443.7 975.0 887.7 1501.0 1413.7 2002.0 1914.7 2470.0 2382.7 3046.0 2958.7 3516.0 3428.7 3985.0 3897.7 4460.0 4372.7 4999.9 4912.6 5371.9 5284.6 5478.8 5391.6 5570.5 5483.3 5660.6 5573.4 5730.7 5643.4 INC. SECTION DISTNCE RECORD OF SURVEY DIRECTION BEARING -0.3 S 3.00 E -1.8 N 72.00 E -2.8 N 0.00 E -2.4 S 36.00 W -1.5 S 37.00 W -1.0 S 3.60 W -0.9 S 23.70 W 0.1 S 62.00 W 3,5 N 86.40 W 6.0 N 53.20 E 3.8 5.6 12.5 24.5 35.7 5823.1 5735.8 52.2 5915.6 5828.4 73.1 6006.3 5919.1 97.4 6095.0 6007.7 125.2 6171.1 6083.8 152.3 6258 . 7 6171.4 185.6 Computation...: Survey Date...: RKB Elevation.: Reference ..... : Magnetic Dcln.: 02/19/91 RADIUS OF CURVATURE 02/18/91 87.27 ft 30.00 E 3/MWD RELATIVE-COORDINATES FROM-WELL-HEAD 1.2 S 0.1 E 2.1 S 1.4 E 1.8 S 2.5 E 2.6 S 1.9 E 4.3 S 0.7 E 6.8 S 0.3 W 8.8 S 0.7 W 10.3 S 2.1 W 11.1 S 5.7 W 5.8 S 7.3 W N 24.00 E 2.1 S 4.3 W S 87.30 W 0.0 N 5.7 W S 81.70 W 0.6 S 12.8 W S 86.30 W. 2.0 S 25.3 W S 81.70 W 3.2 S 36.9 W S 87.00 W 4.9 S 54.0 W N 87.80 W 5.0 S 75.4 W N 88.50 W 4.2 S 100.0 W N 89.90 W 3.8 S 128.2 W S 88.40 W 4.2 S 155.9 W S 89.50 W 4.8 S 189.9 W CLOSURE DL DISTNCE BEARING /100 1.2 S 3.00 E 2.6 S 34.41 E 3.1 S 55.34 E 3.2 S 35.66 E 4.3 S 9.00 E 6.8 S 2.25 W 8.8 S 4.86 W 10.5 S 11.62 W 12.5 S 27.31 W 9.3 S 51.19 W 4.7 S 63.95 W 5.7 N 89.59 W 12.8 S 87.13 W 25.4 S 85.58 W 37.1 S 85.08 W 54.3 S 84.85 W 75.6 S 86.19 W 100.1 S 87.58 W 128.3 S 88.29 W 156.0 S 88.46 W 190.0 S 88.55 W 0.05 0.00 0.05 0.05 0.00 : 0.01 0.02 0.02 0.06 0.06 0.08 1.98 3.81 3.85 0.72 2.88 2.34 2.34 2.91 2.48 0.45 Y-30 MEAS INCLN DEPTH ~ANGLE 6377 21.80 6469 22.00 6563 22.30 6663 22.40 6757 22.80 RECORD OF SURVEY VERTICAL-DEPTHS SECTION DIRECTION BKB SUB-SEA DISTNCE BEARING 6345.2 6257.9 219.2 6430.5 6343.3 253.0 6517.6 6430.3 287.9 6610.1 6522.8 '325.4 6696.9 6609.6 361.0 3 6859 23.00 6790.8 6703.6 3 6954 23.20 6878.2 6790.9 3 7049 23.40 6965.5 6878.2 3 7124 23.40 7034.3 6947.0 3 7219 22.80 7121.7 7034.4 3 7312 22.20 7207.6 7120.3 3 7405 21.60 7293.9 7206.6 3 7500 20.70 7382.5 7295.2 3 7594 20.20 7470.6 7383.3 3 7687 19.50 7558.0 7470.8 3 7781 19.20 7646.7 7559.5 3 7874 19.20 7734.6 7647.3 3 7969 19.20 7824.3 7737.0 3 8066 19.10 7915.9 7828.6 3 8157 19.30 8001.8 7914.6 3 8259 19~30 8098.1 8010.8 3 8341 - 19.30 8175.5 8088.2 3 8435 19.20 8264.3 8177.0 3 8536 19.00 8359.7 8272.4 3 8631 18.90 8449.5 8362.3 3 8730 18.50 8543.3 8456.0 ^Survey Codes: 3/MWD 400.2 437.1 474.4 504.0 541.2 576.7 611.3 645.6 678.4 710.0 N 89.60 W N 89.20 W N 89.00 W N 88.80 W N 88.00 W RELATIVE-COORDINATES FROM-WELL-HEAD 4,8 S 224.1 W 4.5 S 258.5 W 3.9 S 293.9 W 3.2 S 331.9 W 2.2 S 368.0 W N 88.00 W 0.8, S 407.7 W N 87.20 W 0,8 N 444.9 W N 85.50 W 3.1 N 482.4 W N 84.50 W 5.7 N 512.1 W N 83.10 W 9.8 N 549.2 W N 82.00 W 14.4 N 584.4 W N 81.00 W 19,5 N 618.7 W N 79.70 W 25.3 N 652.5 W N 76.60 W 32.0 N 684.7 W N 75.00 W 39.7 N 715.3 W 741.0 N 72.90 W 48,4 N 745.2 W 771.4 N 72.40 W 57.5 N 774.4 W 802.3 N 70.50 W 67.4 N 804.0 W 833.7 N 68.40 W 78.6 N 833.8 W 863.1 N 67.70 W 89.8 N 861.6 W 896.0 N 65.80 W 103.1 N 892.6 W 922.3 N 64.70 W 114.4 N 917.2 W 952.2 N 63.10 W 128.1 N 945.0 W 983.9 N 62.10 W 143.3 N 974.3 W 1013.1 N 58.80 W 158.5 N 1001.2 W 1042.7 N 56.70 W 175.4 N 1028.0 W Page 2 02/19/91 CLOSURE DISTNCE BEARING 224.2 S 88.76 W 258.5 S 89.01 W 293.9 S 89.23 W 331.9 S 89.45 W 368.0 S 89.66 W 407.7 S 89.89 W 444.9 N 89.90 W 482.4 N 89.63 W 512.1 N 89.36 W 549.2 N 88.98 W 584.6 N 88.59 W 619.1 N 88.19 W 653.0 N 87.78 W 685.4 N 87.32 W 716.4 N 86.82 W 746.8 N 86.29 W 776.5 N 85.76 W 806.9 N 85.21 W 837.5 N 84.62 W 866.2 N 84.05 W 898.5 N 83.41 W 924.3 N 82.89 W 953.6 N 82.28 W 984.8 N 81.64 W 1013.6 N 81.01 W 1042.9 N 80.32 W DL /lOO 0.45 0.23 0 . 32 0.10 0.44 0.20 0.25 0.35 0.21 0.67 0.67 0.66 0.96 0.66 0.78 0.40 0.06 0.22 0.25 0.24 0.20 0.15 0.21 0.22 0.38 0.46 Y-30 S MEAS INCLN C DEPTH ~ANGLE 3 8824 18.10 3 8919 17.60 3 9008 17.20 VERTICAL-DEPTHS BKB SUB-SEA 8632.6 8545.3. 8723.0 8635.7 8807.9 8720.6 PROJECTED T.D. AT 9092 MD X 9092 16.80 8888.2 8801.0 RECORD OF SURVEY SECTION DIRECTION DISTNCE BEARING RELATIVE-COORDINATES FROM-WELL-HEAD 1069.6 N 53.20 W 192.4 N 1052.2 W 1095.5 N 51.00 W 210.3 N 1075.2 W 1118.8 N 49.40 W 227.3 N 1095.6 W 1140.0 N 47.80 W 243.5 N 1114.0 W Page 3 02/19/91 CLOSURE DL DISTNCE BEARING /100 1069.6 N 79.64 W 0.56 1095.5 N 78.94 W 0.57 1118.9 N 78.28 W 0.48 1140.3 N 77.67 W 0.50 ^Survey Codes: 3/MWD X/EXTRAPOLATED Y-30 SUBSEA DEPTH 5OO 600 700 8OO 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 Page DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 4 02/19/91 MEAS INCLN DEPTH'ANGLE 587 0.25 687 0.25 787 0.25 887 0.25 987 0.24 TVD MD-TVD .VERT DIRECTION BKB DIFF CRRT BEARING 587 0 0 N 29.32 E 687 0 0 N 86.75 E 787 0 0 S 35.82 E 887 0 0 S 21.62 W 987 0 0 N 70.32 E RELATIVE COORDINATES FROM WELL HEAD 1.20 S 0.24 E 1.57 S 0.52 E 2.20 S 0.43 E 2.68 S 0.19 W 2.09 S 1.49 E 1087 0.20 1187 0.15 1287 0.10 1387 0.05 1487 0.01 1587 0.04 1687 0.09 1787 0.14 1887 0.19 1987 0.24 1087 0 1187 0 1287 0 1387 0 1487 0 1587 0 1687 0 1787 0 1887 0 1987 0 0 N 56.63 E 0 N 42.94 E 0 N 29.25 E 0 N 15.57 E 0 N 1.88 E 0· S 36.00 W 0 S 36.00 W 0 S 36.00 W 0 S 36.00 W 0 S 36.00 W 1.92 S 1.84 E 1.71 S 2.06 E 1.51 S 2.17 E 1.77 S 2.48 E 1.75 S 2.53 E 1.78 S 2.52 E 1.87 S 2.45 E 2.04 S 2.32 E 2.28 S 2.15 E 2.59 S 1.93 E 2087 0.25 2187 0.25 2287 0.25 2387 0.25 2487 0.25 2087 0 2187 0 2287 0 2387 0 2487 0 0 S 36.18 W 0 S 36.40 W 0 S 36.61 W 0 S 36.82 W 0 S 36.00 W 2.94 S 1.67 E 3.29 S .1.41 E 3.64 S 1.15 E 3.99 S 0.89 E 4.34 S 0.63 E 2587 0.26 2687 0.27 2787 0.28 2887 0.29 2987 0.29 2587 0 2687 0 2787 0 2887 0 2987 0 0 S 30.20 W 0 S 24.40 W 0 S 18.60 W 0 S 12.80 W 0 S 7.00 W 4.71 S 0.39 E 5.12 S 0.18 E 5.56 S 0.00 W 6.04 S 0.14 W 6.53 S 0.23 W 3000 3087 0.29 3087 0 0 S 5.37 W 7.04 S 0.28 W Y-30 SUBSEA DEPTH 3100 3200 3300 3400 3500 MEAS DEPTH 3187 3287 3387 3487 3587 · Page DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL INCLN TVD MD-TVD 'VERT ANGLE BKB DIFF CRRT 0.27 3187 0 0.25 3287 0 0.23 3387 0 0.21 3487 0 0.22 3587 0 3600 3687 0.24 3687 3700 3787 0.26 3787 3800 3887 0.28 3887 3900 3987 0.30 3987 4000 4087 0.36 4087 4100 4187 0.43 4187 4200 4287 0.49 4287 4300 4387 0.55 4387 4400 4487 0.62 4487 4500 4587 0.67 4587 4600 4687 0.73 4687 4700 4787 0.78 4787 4800 4887 0.84 4887 4900 4987 0.89 4987 5000 5087 0.83 5087 5100 5187 0.75 5187 5200 5287 0.67 5287 5300 5387 0.90 5387 5400 5487 3.02 5487 5500 5588 6.85 5587 5 02/19/91 5689 9.51 5687 DIRECTION BEARING RELATIVE COORDINATES FROM WELL HEAD 5600 0 S 9.64 W 0 S 13.92 W 0 S 18.20 W 0 S 22.47 W 0 S 29.52 W 7.53 S 0.35 W 7.97 S 0.44 W 8.37 S 0.56 W 8.72 S 0.71 W 9.05 S 0.87 W 0 0 0 0 0 · . 0 0 0 0 0 S 37.69 W 0 S 45.85 W 0 S 54.02 W 0 S, 62.15 W 0 S 68.81 W 9.38 S 1.08 W 9.70 S 1.36 W 10.01 S 1.71 W 10.30 S 2.13 W 10.54 S 2.65 W S 75.46 W lO.75 s 3.31 w s 82.11 w lO.93 s 4.09 w s 88.76 w 11.o4 s 4.99 w N 79.34 W 11.03 S 6.00 W N 53.48 W 10.59 S 7.02 W 0 N 27.63 W 0 N 1.78 W 0 N 24.08 E 0 N 49.93 E 0 N 46.34 E 9.70 S 7.83 W 8.48 S 8.22 W 7.16 S 8.08 W 5.98 S 7.39 W 5.00 S 6.27 W 0 N 38.49 E 0 N 30.64 E 0 N 7.21 E 0 S 86.79 W 0 S 82.55 W 3.98 S 5.34 W 2.94 S 4.66 W 1.89 S 4.21 W 0.02 N 6.14 W 0.91 S 14.72 W b2 1 S 84.55'W 2.32 S 29.82 W Y-30 Page 6 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 02/19/91 SUBSEA MEAS INCLN TVD DEPTH DEPTH ANGLE BKB 5700 5790 10.85 5787 5800 5893 13.42 5887 5900 5996 15.84 5987 6000 6101 18.76 6087 6100 6207 21.07 6187 6200 6315 21.53 6287 6300 6422 21.90. 6387 6400 6530 22.20 6487 6500 6638 22.38 6587 6600 6747 22.76 6687 6700 6855 22.99 6787 6800 6964 23.22 6887 6900 7073 23.40 6987 7000 7182 23.04 7087 7100 7290 22.34 7187 MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 3 6 9 14 20 27 35 43 51 59 68 77 85 94 103 1 S 84.94' W 2 N 89.40 W 3 N 88.35 W 5 N 89.78 W 6 S 88.60 W 4.34 S 46.86 W 5.17 S 68.46 W 4.38 S 94.54 W 3.84 S 125.60 W 4.36 S 162.15 W 7200 7398 21.65 7287 111 7300 7505 20.67 7387 118 7400 7612 20.07 7487 125 7500 7718 19.40 7587 131 3600 7824 19.20 7687. 137 7 S 89.80 W 4.88 S 201.14 W 8 N 89.40 W 4.70 S 241.02 W 8 N 89.07 W 4.14 S 281.49 W 8 N 88.85 W 3.39 S 322.52 W 8 N 88.09 W 2.33 S 363.99 W 7700 7930 19.20 7787 7800 8036 19.13 7887 7900 8142 19.27 7987 8000 8248 19.30 8087 8100 8353 19.29 8187 9 N 88.00 W 0.86 S 406.18 W 9 N 87.02 W 0.95 N 448.81 W 9 N 85.18 W 3.91 N 491.83 W 9 N 83.65 W 8.09 N 534.70 W 8 N 82.26 W 13.24 N 576.19 W 8 N 81.08 W 19.10 N 616.16 W 7 N 79.53 W 25.58 N 654.31 W 7 N 76.29 W 33.43 N 690.63 W 6 N 74.31 W 42.48 N 725.25 W 6 N 72.67 W 52.53 N 758.71 W 143 148 154 160 166 6 N 71.28 W 63.20 N 791.86 W 6 N 69.06 W 74.98. N 824.58 W 6 N 67.82 W 87.84 N 856.86 W 6 N 66.01 W 101.53 N 889.09 W 6 N 64.49 W 116.19 N 920.89 W 8200 8459 19.15 8287 172 6 N 62.86 W 131.70 N 952.13 W Y-30 Page 7 DATA INTERPOLATED FOR 100 FT SUBSE~ INTERVAL 02/19/91 SUBSEA MEAS INCLN DEPTH DEPTH ANGLE TVD BKB 8300 8565 18.97 8387 8400 8671. 18.74 8487 8500 8776 18.30 8587 8600 8882 17.80 8687 8700 8986 17.30 8787 8800 9091 16.80 8887 MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 178 6 N 61.09 W 147.78 N 982.69 W 184 6 N 57.95 W 165.22 N 1012.12 W 189 5 N 54.98 W 183.63 N 1040.12 W 194 5 N 51.87 W 203.14 N 1066.24 W 199 5 N 49.79 W 223.13 N 1090.72 W 204 5 N 47.82.W 243.33 N 1113.80 W Y-30 Page 8 DATA INTERPOLATED FOR 1000 FT MEASURED DEPTH INTERVAL 02/19/91 MEAS INCLN VERT-DEPTHS SECT DIRECTION REL-COORDINATES DEPTH ANGLE BKB SUB-S DIST BEARING 1000 0.24 1000 913 2000 0.25 2000 1913 3000 0.30 3000 2913 4000 0.31 4000 3913 5000 0.90 5000 4913 CLOSURE FROM-WELLHEAD DIST BEARING -2 N 68.58 E 2 S 2 E -2 S 36.00 W 3 S 2 E -iS 6.27W 7S OW 0 S 63.00 W 10 S 2 W 6 N 53.20 E 6 S 7 W DL/ 100 3 S 36.69 E 0.0 3 S 35.81 E' 0.0 7 S 2.11 W 0.0 11 S 11.96 W 0.1 9 S 51.19 W 0.1 6000 15.93 5991 5904 93 N 88.38 W 7000 23.30 6920 6833 455 N 86.38 W 8000 19.17 7854 7766 812 N 69.83 W , 9000 17.24 8800 8713 1117 N 49.54 W 4 S 2 N 71 N 226 N 96 W 96 S 87.40 W 2.3 463 W 463 N 89.78 W 0.4 814 W 817 N 85.02 W 0.3 1094 W 1117 N 78.34 W 0.5 T. V. Spear Len6 Directional Drilling. Inc. <KB>O 500 iO00 i500 2000 2500 3000 35OO 4000 4500 5000 5500 8000 8500 7000 7500 8000 VERTICAL SECTION ViEW BP EXPLORATION Y-30 Section at: N 79.14 ~ TVD Scale.: i inch = lO00 feet Der Scale.: 1 inch = lO00 feet Drawn .....: 02/19/9i Marker Identification ~ TV9 SECTN INCLN ~) KB 0 0 0 0.00 B) 713 9092 8888 ti40 t6.80 'r., I 8500 9000 500 500 t000 i5oo 2000 2500 3000 Section Departure 3500 4000 4500 5000 i~50 iBO0 i§50 i§O0 i350 i~O0 iO§O 9O0 ,A ! e, and L~lrsc Harker Identification MD NIS EIH B) 'rD 9092 244 N iii4 H PLAN BP EXFLORATION Y-30 CLOSURE ..... : il40 f~ N 77.67 DECLINATION.: 30.00 E SCALE ....... : i inch = 300 feet DRAWN ....... : 02~19/9i 750 600 450 300 t50 i50 i650 = _ , i500 i350~ i200 i050 ' 900 750 600 450 300 i50 0 150 <- ~EST ' EAST -> ~~~iNAL SUB - S URFA CE DIRECTIONAL SURVEY r~ UIDANCE ~'! ONTINUOUS I~ OOL ,Oa/e ~ Company BP EXPLORATION Well Name Y-30 (41-33-11-13) (1357' FNL, 43' FWL, SEC 34, T11N, R13E) Field/Location PRUDHOE BAY, NORTH SLOPE, ALASKA * SCHLUMBERGER * GCT DIRECTIONAL SURVEY CUSTOMER LISTING FOR BP EXPLORATION Y-30 ( 41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA SURVEY DATE: 30-MAR-1991 METHODS OF COMPUTATION TOOL LOCATION: INTERPOLATION: VERTICAL SECTION: ENGINEER: JEFF FORMICA TANGENTIAL- AverageO deviation anO azimuth LINEAR HORIZ. DIST. PROJECTED ONTO A TARGET AZIMUTH OF NORTH 75 DEG 47 MIN WEST COMPUTATION DATE: 11-APR-91 PAGE 1 BP EXPLORATION Y-30 ( 41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 30-MAR-1991 KELLY BUSHING ELEVATION: 87.27 FT ENGINEER: JEFF FORMICA INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZtMUT~ DEPTH DEPTH DEPTH DEG MIN DEG MIN FEET DEG/IO0 FEET FEET FEET DEG MIN 0.00 100.00 100 200.00 200 300.00 300 400.00 400 500.00 500 600.00 600 700.00 700 800.00 800 900.00 900 0 O0 -87.27 0 0 N 0 0 E O0 12.73 0 6 S 66 35 E O0 112.73 0 9 S 33 21 E O0 212.73 0 17 S 23 14 E O0 312.73 0 17 S 35 19 E O0 412.73 0 13 S 7 55 E O0 512.73 0 6 S 23 32 W O0 612.73 0 8 S 84 5 W O0 712.73 0 5 S 51 49 W O0 812.73 0 6 N 47 38 E 0 O0 -0 10 -0 23 -0 49 -0 79 -1 05 -1 13 -0 98 -0 78 -0 81 0 O0 0 03 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 0 58 0 O0 N 0085 0 20 S 0525 0 97 S 1 36 S 1 69 S 1 76 S 1 82 S 1 87 S 0.00 E 0.09 E 0.18 E 0.37 E 0.57 E 0.74 E 0.74 E 0.56 E 0.35 E 0.36 E 0.00 N 0 0 E 0 11 S 48 43 E 0 27 S 41 33 E 0 64 S 35 18 E 1 12 S 30 29 E 1 55 S 28 18 E 1 84 S 23 35 E 1.85 S 37 44 E 1.85 S 10 46 E 1.91 S 10 52 E 1000.00 999.99 912.72 0 18 N 41 49 E 1100.00 1099.99 1012.72 0 14 N 65 6 E 1200.00 1199.99 1112.72 0 12 N 16 40 E 1300.00 1299.99 1212.72 0 13 S 79 56 E 1400.00 1399.99 1312.72 0 9 N 69 44 E 1500.00 1499.99 1412.72 0 4 N 51 56 W 1600.00 1599.99 1512.72 0 6 N 72 58 E 1700.00 1699.99 1612.72 0 7 N 44 51 W 1800.00 1799.99 1712.72 0 4 N 63 51 E 1900.00 1899.99 1812.72 0 6 N 72 31 W -0.94 -1 .26 -1 .39 -1 .61 -1 .93 -1 .91 -1 .94 -1 .92 -1 .91 -1 .89 0 O0 0 35 0 26 0 O0 0 39 0 O0 0 21 0 22 0 O0 0 27 1.53 S 1.26 S 0.99 S 0.91 S 0.95 S 0.79 S 0.79 S 0.61 S 0.59 S 0.45 S 0.58 E 0 98 E 1 19 E 1 43 E 1 75 E 1 77 E 1 80 E 1 83 E 1.82 E 1 . 84 E t .64 S 20 43 E 1.60 S 37 55 E 1.54 S 50 14 E 1 .70 S 57 41 E 1 .99 S 61 26 E 1.94 S 65 51 E 1 .96 5 66 20 E 1 .93 S 71 37 E 1 .91 5 72 3 E 1 .89 S 76 22 E 2000 O0 1999.99 1912 72 0 9 S 27 38 E 2100 2200 2300 240O 2500 2600 2700 2800 2900 O0 2099.99 2012 O0 2199.99 2112 O0 2299.99 2212 O0 2399.99 2312 O0 2499.99 2412 O0 2599.99 2512 O0 2699.99 2612 O0 2799.99 2712 O0 2899.99 2812 72 0 5 S 9 5 W 72 0 7 N 82 52 E 72 0 4 S 24 42 E 72 0 5 N 70 13 W 72 0 4 5 9 59 E 72 0 9 N 81 9 W 72 0 2 N 37 9 E 72 0 12 N 87 35 W 72 0 10 S 50 56 W -1 .84 -1 .97 -2.05 -2.05 -2.17 -2.08 -1 .97 -1 .B6 -1 .70 -1 .44 0.00 0.00 0.73 O. 48 0.35 0.22 0.13 0.06 0.05 0.00 0.61 S 0.78 S 1.02 S 0.95 S 0.98 S 1.10 S 1.04 S 1.11 S 1 .01 S 1.14 S 1.75 E 1.83 E 1.85 E 1.88 E 1.99 E 1.87 E 1.77 E 1.64 E 1.50 E 1.19 E 1 .85 S 70 42 E 1 .99 S 66 48 E 2. 12 S 61 14 E 2.10 S 63 3 E 2.2t S 63 52 E 2. 16 S 59 34 E 2.05 S 59 32 E 1.98 S 56 3 E 1 .81 S 55 56 E 1.65 S 46' 11 E 3000 O0 2999.99 2912 72 0 20 S 52 40 W 3100 3200 3300 3400 3500 3600 3700 3800 3900 O0 3099.99 3012 O0 3199.99 3112 O0 3299.99 3212 O0 3399 99 3312 O0 3499 99 3412 O0 3599 99 3512 O0 3699 99 3612 O0 3799 99 3712 O0 3899 72 0 16 S 33 58 W 72 0 16 S 6O 15 W 72 0 3 S 40 16 W 72 0 12 S 76 26 W 72 0 13 S 31 59 W 72 0 17 S 69 39 W 72 0 13 S 42 33 W 72 0 19 S 61 40 W 99 3812.72 0 18 S 70 24 W -1 .18 -0.92 -0.64 -0.44 .-0.27 0.01 0.24 0.57 0.93 1 .20 0.00 0.00 0.00 0.11 0.00 0.00 0.00 0.10 0.00 0.45 1.34 S 1.75 S 2.03 S 2.22 S 2.26 S 2.48 S 2.68 S 2.96 S 3.16 S 3.44 S 0.88 E 0.51 E 0.15 E 0.11 W 0.30 W 0.64 W 0.92 W 1.33 W 1.76 W 2.11 W 1 60 S 33 22 E 82 S 16 9 E 03 S 4 15 E 22 S 2 56 W 28 S 7 33 W 57 S 14 31 W 84 S 18 59 W 24 S 24 16 W 62 S 29 3 W 04 S 31 32 W BP EXPLORATION V-30 ( 41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA COMPUTATION DATE: 11-APR-91 PAGE 2 DATE OF SURVEY: 30-MAR-1991 KELLY BUSHING ELEVATION: 87.27 FT ENGINEER: JEFF FORMICA INTERPOLATED VALUES FOR EVEN lO0 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTN DEPTH DEPTH DEPTH DEG MIN DEG MIN 4000.00 3999.99 3912.72 0 21 5 40 48 W 1.60 4100.00 4099.98 4012.71 0 31 S 35 49 W 1.91 4200.00 4199.98 4112.71 0 40 S 40 41 W 2.35 4300.00 4299.97 4212.70 0 48 S 49 18 W 3.04 4400.00 4399.96 4312.69 0 48 S 56 20 W 3.90 4500.00 4499.95 4412.68 0 33 5 81 12 W 4.86 4600.00 4599.95 4512.68 0 25 N 79 15 W 5.65 4700.00 4699.94 4612.67 0 25 N 68 15 W 6.40 4800.00 4799.94 4712.67 0 29 N 53 39 W 7.16 4900.00 4899.94 4812.67 0 23 N 6 24 E 7.58 5000.00 4999.93 4912 66 0 50 N 43 25 E 5100,00 5099,92 5012 5200,00 5199,91 5112 5300 O0 5299,89 5212 5400 O0 5399.88 5312 5500 O0 5499,85 5412 5600 O0 5599,46 5512 5700 O0 5698,37 5611 5800 O0 5796,93 5709 5900,00 5894,70 5807 65 0 54 N 42 15 E 64 0 57 N 42 55 E 62 0 49 N 34 47 E 61 0 40 N 20 21 E 58 2 53 S 87 17 W 19 6 48 S 82 55 W 10 9 30 S 84 41 W 66 10 30 S 85 14 W 43 13 35 S 90 0 W 6000 O0 5991,47 5904 20 15 36 N 89 15 W 6100 6200 6300 640O 6500 6600 670O 6800 6900 O0 6O87 O0 6181 O0 6274 O0 6367 O0 646O O0 6552 O0 6645 O0 6737 O0 6829 15 5999 25 6093 58 6187 56 6280 3O 6373 88 6465 33 6558 60 6650 66 6742 FEET DEG/IO0 FEET FEET FEET DEG MIN 7 21 6 37 5 69 4 99 4 62 6 64 14,66 28.43 44,29 64,37 88,85 88 18 20 S 89 46 W 117,04 98 20 40 S 89 16 W 149,73 31 21 19 S 89 38 W 184,43 29 21 52 N 89 56 W 220,10 03 22 5 N 89 37 W 256,40 61 22 22 N 89 8 W 293,18 06 22 33 N 88 44 W 330,29 33 22 51 N 88 13 W 367,91 39 23 9 N 87 23 W 406,09 7000 O0 6921,62 6834,35 23 11 N 86 33 W 444 63 O0 7013,42 6926.15 23 26 N 85 32 W 483 66 O0 7105.28 7018.01 22 57 N 84 8 W 522 68 O0 7197.55 7110.28 22 16 N 82 44 W 560 89 O0 7290,33 7203.06 21 35 N 81 28 W 597 98 O0 7383,52 7296,25 20 51 N 80 13 W 634 09 O0 7477,20 7389,93 20 13 N 77 43 W 669 02 O0 7571.28 7484.01 19 27 N 75 25 W 702 90 O0 7665.71 7578,44 19 7 N 73 1 W 735,80 O0 7760.19 7672.92 19 15 N 71 48 W 768,51 7100 7200 7300 7400 75OO 7600 7700 7800 7900 0,00 0,00 0 39 0,00 0.23 0.11 0,00 0,52 0.11 0,52 0,13 0,40 0.00 0,22 1 09 4 76 3 43 051 3 O6 1 93 2,00 3 39 0 92 0 36 0 59 0 49 0 24 0,49 O,30 0,56 0.62 0.53 0.89 1 .51 0.52 1.17 1.16 1 .29 0.66 0.27 3,77 S 4,38 S 5.19 S 6,08 5 6,94 S 7,47 S .7,47 S 7,30 S 6.85 S 6,30 S 2.61 W 4 59 S 34 41 W 3.08 W 5 35 S 35 8 W 3.73 W 6 39 S 35 45 W 4.67 W 7 67 S 37 33 W 5.79 W 9 04 S 39 49 W 6,91 W 10 17 S 42 47 W 7,72 W 10 74 S 45 56 W 8.45 W 11.17 S 49 11 W 9.12 W 11.40 S 53 7 W 9.41 W 11 .33 S 56 13 W 5.34 S 8.79 W 10.29 S 58 45 W 4.24 S 7.65 W 8.74 S 61 1 W 3.05 S 6.64 W 7.31 S 65 19 W 1.88 S 5 62 W 5.93 S 71 31 W 0.70 S 4.95 W 5.00 S 81 54 W 0.13 S 6 89 W 6.89 S 88 53 W 1.16 S 15.42 W 15.46 S 85 42 W 2.65 S 30 O0 W 30. 12 S 84 57 W 4,44 S 46,82 W 47,03 S 84 35 W 5,20 S 67 72 W 67,92 S 85 37 W 4.92 S 92 91 W 93 04 S 86 58 W 4.73 S 121.94 W 122 03 S 87 47 W 5.13 S 155 76 W 155 85 S 88 7 W 5.52 S 191.66 W 191 74 S 88 21 W 5.59 5 228 47 W 228 54 S 88 36 W 5.42 5 265.87 W 265 93 S 88 50 W 4.86 S 303 67 W 303 71 S 89 5 W 4.15 S 341.79 W 341.81 S 89 18 W 3,12 S 380,33 W 380,34 S 89 32 W 1,62 S 419,34 W 419.35 S 89 47 W 0.45 N 458.57 W 458.57 N 89 57 W 3.24 N 498.13 W 498 14 N 89 38 W 6,82 N 537,47 W 537 11,20 N 575,78 W 575 16,30 N 612.75 W 612 22.04 N 648.55 W 648 28,69 N 682,90 W 683 36,56 N 715,85 W 716 45,62 N 747,49 W 748 55,57 N 778,72 W 780 52 N 89 16 W 89 N 88 53 W 96 N 88 29 W 93 N 88 3 W 50 N 87 36 W 79 N 87 5 W 89 N 86 30 W 70 N 85 55 W COMPUTATION DATE: 11-APR-91 PAGE 3 BP EXPLORATION V-30 ( 41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 30-MAR-1991 KELLY BUSHING ELEVATION: 87.27 FT ENGINEER: JEFF FORMICA INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN FEET DEG/IO0 FEET FEET FEET DEG MIN 8'000,00 7854,62 7767,35 19 6 N 70 23 W 801,29 8100,00 7949,15 7861,88 19 8 N 68 32 W 833.71 8200.00 8043.53 7956,26 19 22 N 67 26 W 866.46 8300.00 8137 86 8050,59 19 19 N 66 8 W 899,23 8400,00 8232 23 8144,96 19 24 N 64 40 W 931,77 8500,00 8326 67 8239,40 19 '1 N 62 42 W 963,92 8600,00 8421 26 8333.99 18 51 N 60 19 W 995.38 8700,00 8515 87 8428.60 18 47 N 57 5t W 1026.40 8800.00 8610 67 8523.40 18 22 N 55 12 W 1056,44 8900,00 8705 72 8618,45 17 47 N 52 9 W 1085,20 O, 68 0,55 0,53 1,11 0,70 0,69 O. 49 1 .38 1 ,03 1 ,04 66,16 N 809,85 W 812.55 N 85 20 W 77.65 N 840,39 W 843.97 N 84 43 W 90,08 N 871 02 W 875,67 N 84 6 W 103,15 N 901 52 W 907,40 N 83 28 W 116,95 N 931 58 W 938.89 N 82 51 W 131,52 N 961 05 W 970,01 N 82 12 W 146.97 N 989 60 W 1000.45 N 81 33 W 163.60 N 1017 38 W 1030,45 N 80 52 W 181.15 N 1043.93 W 1059.53 N 80 9 W 199.56 N 1068.93 W 1087.40 N 79 25 W 9000,00 8801,08 8713,81 17 23 N 50 0 W 1112 58 9100 O0 8896.61 8809,34 17 24 N 47 28 W 1138 83 9200 O0 8992,09 8904,82 16 26 N 46 43 W 1164 95 9300 O0 9088,15 9000,88 16 3 N 44 57 W 1189 02 .9400 O0 9184,28 9097,01 15 47 N 43 5 W 1212 45 9500 O0 9280.51 9193,24 15 47 N 43 3 W 1235 33 9540 O0 9319.00 9231,73 15 47 N 43 3 W 1244 48 1 .05 1 .60 1 ,90 O, 68 1 ,16 0,00 0,00 218.46 N 1092,39 W 1114 02 N 78 41 W 238,07 N 1114,50 W 1139 64 N 77 57 W 258,23 N 1136,33 W 1165 30 N 77 12 W 277,58 N 1156,26 W 1189 12 N 76 30 W 297,44 N 1175,40 W 1212 45 N 75 48 W 317,32 N 1193,96 W 1235 41 N 75 7 W 325,27 N 1201,39 W 1244 64 N 74 51 W COMPUTATION DATE: Il-APR-91 PAGE 4 BP EXPLORATION Y-30 ( 41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 30-MAR-1991 KELLY BUSHING ELEVATION: 87.27 FT ENGINEER: JEFF FORMICA INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUT~ DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 0.00 1000.00 999 2000.00 1999 3000.00 2999 4000.00 3999 5000.00 4999 6000.00 5991 7000.00 6921 8000.00 7854 9000.00 8801 0 O0 -87.27 0 0 99 912.72 0 18 99 1912.72 0 9 99 2912 72 0 2O 99 3912 72 0 21 93 4912 66 0 50 47 5904 20 15 36 62 6834 35 23 11 62 7767 35 19 6 08 8713 81 17 23 N 0 0 E N 41 49 E -0 S 27 38 E -1 S 52 40 W -1 S 40 48 W 1 N 43 25 E 7 N 89 15 w 88 N 86 33 W 444 N 70 23 W 801 N 50 0 W 1112 0 O0 94 84 18 6O 21 85 63 29 58 0 O0 0 O0 0 O0 0 O0 0 O0 013 2 O0 0 62 0 68 1 .05 0.00 N 1.53 S 0 0.61 S 1 1.34 S 0 3.77 S 2 5.34 S 8 4.92 S 92 0.45 N 458 66. 16 N 809 0 O0 E 0 O0 N 0 0 E 58 E 1 64 S 20 43 E 75 E 1 85 S 70 42 E 88 E 1 60 S 33 22 E 61 W 4 59 S 34 41 W 79 W 10 29 S 58 45 W 91 W 93 04 S 86 58 W 57 W 458 57 N 89 57 W 85 W 812.55 N 85 20 W 218.46 N 1092.39 W 1114.02 N 78 41 W 9540.00 9319.00 9231.73 15 47 N 43 3 W 1244.48 0.00 325.27 N 1201.39 W 1244.64 N 74 51 W COMPUTATION DATE: 11-APR-91 PAGE 5 BP EXPLORATION Y-30 (.41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 30-MAR-1991 KELLY BUSHING ELEVATION: 87,27 FT ENGINEER: JEFF FORMICA INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ, DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST, AZIMUTH FEET DEG/IO0 FEET FEET FEET . DEG MIN 0,00 87 27 187 27 287 27 387 27 487 27 587 27 687 27 787 27 887,27 0 O0 87 187 287 387 487 587 687 787 887 -87,27 0 0 N 0 0 E 27 0,00 0 6 S 63 54 E 27 100,00 0 8 S 30 35 E 27 200,00 0 16 S 25 18 E 27 300,00 0 17 S 29 7 E 27 400.00 0 14 S 9 44 E 27 500.00 0 8 S 12 0 W 27 600.00 0 8 S 86 24 W 27 700,00 0 6 S 61 50 W 27 800,00 0 3 N 74 42 E 0 O0 -0 08 -0 20 -0 45 -0 74 -1 03 -1 13 -1 01 -0 80 -0 80 0 O0 0 O0 0 O0 0 O9 0 26 0 O0 0 2O 0 O0 0 O0 0 26 0 O0 N 0 07 S 0 18 S 0 47 S 091 S 1 32 S 1 66 S 1 76 S 181 S 1.88 S 0,00 E 0.07 E 0,16 E 0 35 E 0 54 E 0 73 E 0 74 E 0 59 E 0 36 E 0 34 E 0,00 N 0 0 E 0.09 S 44 57 E 0,24 S 42 48 E 0.58 S 36 27 E 1 06 S 30 22 E 1 50 S 28 57 E 1 82 S 24 8 E 1 86 S 18 37 E 1 85 S 11 22 E 1 91 S 10 23 E 987 27 1087 28 1087 1187 28 1187 1287 28 1287 1387 28 1387 1487 28 1487 1587 28 1587 1687 28 1687 1787.28 1787 1887,28 1887 987 27 900 O0 27 1000 O0 27 1100 O0 27 1200 O0 27 1300 O0 27 1400 O0 27 1500,00 27 1600,00 27 1700,00 27 1800,00 0 18 N 38 58 E 0 16 N 70 33 E 0 13 N 14 35 E 0 12 S 83 0 E 0 10 N 83 29 E 0 5 N 37 9 W 0 4 N 83 21 E 0 8 N 29 18 W 0 3 N 77 41 E 0 6 N 47 38 W -0 91 -1 22 -1 39 -1 57 -1 90 -1 92 -1 92 -1 94 -1 9O -1 91 0 10 0 O0 011 0 04 0 14 0 O2 O01 016 0 O0 0 02 1.58 S 1,28 S 1,03 S 0,90 S 0 96 S 0 80 S 0 79 S 0 63 S 0 59 S 0 46 S 0 54 E 0 93 E 1 17 E 1 39 E 1 72 E 1 78 E 1.78 E 1.85 E 1,81 E 1.85 E 1,67 S 18 41 E 1,58 S 36 0 E 1 ,56 S 48 44 E 1,66 S 57 3 E 1 ,97 S 60 47 E 1,95 S 65 41 E 1 ,95 S 66 1 E 1,95 S 71 10 E 1 ,90 S 71 49 E 1 ,91 S 76 11 E 1987,28 1987 27 1900,00 2087,28 2087 2187 28 2187 2287 2~ 2287 2387 28 2387 2487 28 2487 2587 28 2587 2687 28 2687 2787 28 2787 2887 28 2887 0 9 S 14 18 E 27 2000,00 0 4 S 2 13 E 27 2100,00 0 8 S 48 49 E 27 2200,00 0 1 S 35 59 W 27 2300,00 0 4 N 26 40 W 27 2400.00 0 5 S 10 44 W 27 2500,00 0 8 N 72 48 W 27 2600,00 0 2 S 50 48 E 27 2700,00 0 11 N 80 45 W 27 2800,00 0 11 S 51 54 W -1 82 -1 96 -2 02 -2 05 -2 18 -2 08 -2 O0 -1 86 -1 74 -1 46 0,22 0,00 0,85 0.21 0,51 0,28 0,00 0,09 0.28 0,00 0 58 S 0 77 S 1 01 S 0 95 S 0 98 S 1 O8 S 1 05 S 1 11 S 1.02 S 1,12 S 1,73 E 1,83 E 1,83 E 1,87 E 2,00 E 1,87 E 1,80 E 1,64 E 1.54 E 1.22 E 1 83 S 71 29 E 1 99 S 67 15 E 209 S 61 8 E 2 10 S 63 12 E 2 23 S 63 48 E 2 16 S 59 58 E 2 08 S 59 47 E 1 98 S 56 0 E 1 .85 S 56 33 E 1 .66 S 47 34 E 2987,28 2987 27 2900.00 3087 28 3087 3187 28 3187 3287 28 3287 3387 28 3387 3487 28 3487 3587 28 3587 3687 28 3687 3787 28 3787 3887 28 3887 27 3000.00 27 3100,00 27 3200.00 27 3300,00 27 3400,00 27 3500,00 27 3600.00 27 3700.00 27 3800,00 0 18 S 58 28 w 0 17 S 33 7 w 0 16 S 61 41 w 0 6 S 29 18 w 0 11 S 80 38 w 0 14 S 36 20 w 0 17 S 70 52 w 0 14 S 40 10 w 0 19 S 64 39 w 0 14 S 64 12 w -1,23 -0,94 -0.69 -0,44 -0,30 0,00 0,18 0,54 0,87 1,15 0 38 013 0 O0 0 53 0 O0 0 02 0 O0 0 O0 0 O0 0 61 1,30 S 1,70 S 2,00 S 2:21 S 2,26 S 2,44 S 2,66 S 2,92 S 3,13 S 3,42 S 0.94 E 0.54 E 0.20 E 0.10 W 0.26 W 0.61 W 0.86 W 1.30 W 1.69 W 2.06 W 1 ,60 S 35 52 E 1 ,78 S 17 40 E 2,01 S 5 45 E 2.21 S 2 43 W 2.27 S 6 32 W 2,52 S 14 7 W 2,80 S 17 58 W 3,20 S 24 1 W 3.56 S 28 24 W 3,99 S 31 2 W BP EXPLORATION Y-30 ( 41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN COMPUTATION DATE: 11-APR-91 PAGE 6 DATE OF SURVEY: 30-MAR-1991 KELLV BUSHING ELEVATION: 87,27 FT ENGINEER: JEFF FORMICA INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUT~ 3987 28 3987 27 3900,00 29 4087 29 4187 30 4287 31 4387 32 4487 32 4587 33 4687 33 4787 33 4887 0 21 S 44 27 W 27 4000,00 0 31 5 36 13 w 27 4100.00 0 38 S 38 53 w 27 4200.00 0 48 S 48 23 w 27 4300.00 0 49 S 53 49 w 27 4400.00 0 36 S 77 45 W 27 4500.00 0 25 N 79 14 W 27 4600,00 0 25 N 75 13 W 27 4700.00 0 29 N 51 40 W 27 4800.00 0 21 N 0 46 W 4087 4187 4287 4387 4487 4587 4687 4787 4887 4987,34 4987 27 4900 O0 0 49 N 41 47 E 27 5000 O0 0 56 N 44 53 E 27 5100 O0 0 56 N 42 18 E 27 5200 O0 0 50 N 37 15 E 27 5300 O0 0 43 N 27 25 E 27 5400 O0 2 18 N 88 49 W 27 5500,00 6 23 S 82 36 W 27 5600.00 9 26 S 84 46 W 27 5700,00 10 14 S 84 30 W 27 5800,00 13 23 S 89 42 W 5087,35 5087 5187.36 5187 5287 38 5287 5387 39 5387 5487 41 5487 5587 73 5587 5688 75 5687 5790 18 5787 5892 37 5887 N 89 14 W 27 6000,00 18 20 S 89 46 W 27 6100,00 20 44 S 89 17 W 27 6200,00 21 23 S 89 43 W 27 6300,00 21 55 N 89 53 W 27 6400,00 22 6 N 89 11 W 27 6500,00 22 21 N 89 5 W 27 6600,00 22 37 N 88 30 W 27 6700,00 22 58 N 87 45 W 27 6800,00 23 7 N 86 55 W 5995,64 5987 27 5900,00 15 31 6100,12 6087 6206,44 6187 6313,63 6287 6421,24 6387 6529,11 6487 6637.19 6587 6745,42 6687 6853,92 6787 6962.64 6887 N 85 47 W 27 7000.00 23 6 N 84 24 W 27 7100.00 22 25 27 7200,00 21 36 27 7300,00 20 48 27 7400,00 20 8 27 7500.00 19 20 27 7600,00 19 6 27 7700,00 19 14 27 7800,00 19 0 N 82 54 W N 81 31 W N 80 9 W N 77 26 W N 74 53 W N 72 39 W N 71 37 W N 69 41 W 7071,49 6987 27 6900,00 23 27 7180,42 7087 7288.88 7187 7396,71 7287 7504,01 7387 7610,73 7487 7716,95 7587 7822,82 7687 7928,69 7787 8034.54 7887 FEET DEG/IO0 FEET FEET FEET DEG MIN 1 57 1 87 2 28 2 94 3 79 4 75 5 55 6,31 7,06 7,56 7,30 6,47 5,78 5,05 4,65 6,10 13,35 26,69 42,62 62,69 87 73 117 08 151 93 189 24 227 78 267 03 306,95 347,30 388,42 430,21 472,49 515,11 556.68 596,77 635.52 672,72 708,52 743,26 777,95 812,51 0 21 0 O0 0 O0 0 O0 013 0 ,70 0 O0 0 .47 0 O0 0 ,42 0 19 0 55 0 23 0 29 0 32 4 ,90 3 25 0 66 3 37 2 24 2.01 3,4O 0,99 0,57 0,58 0,89 0,29 0,74 0,50 0,23 0,10 0,95 1 ,49 0,68 1.17 1 ,42 1 .23 0,45 0,54 0,82 3 72 S 4 28 S 5 08 S 5 96 S 6 84 S 7 44 S 7 49 S 7 33 S 6 91 S 6 38 S 2 56 W 3 01 W 3 64 W 4 54 W 5 64 W 6 78 W 7 63 W 8 36 W 9 04 W 9 42 W 4.51 S 34 33 W 5 24 535 6 W 6 7 8 10 10 11 11 11 25 S 35 39 W 49 S 37 17 W 86 S 39 31 W 07 S 42 21 W 69 S 45 31 W 12 S 48 47 W 38 S 52 35 W 37 S 55 53 w 5 47 S 4385 3 20 S 2 03 S 0 84 S 0 13 S 0 98 S 2485 4 28 S 5185 8.92 W 7 79 W 6 78 W 5 73 W 5 01 W 6 32 W 14 03 W 28 16 W 45 05 W 65 10 46 S 58 28 w 8 7 6 5 6 14 28 45 99 W 66 94 S 60 38 W 50 S 64 43 W 08 S 7O 31W 08 S 80 27 W 33 S 88 52 W 06 S 86 0 W 27 S 84 58 W 26 S 84 34 W 19 5 85 31W 4 94 S 91.75 W 91.88 S 86 55 W 4 73 S 121.97 W 122.07 S 87 47 W 5 16 S 158.04 W 158.13 S 88 8 W 5 55 S 196 62 W 196.70 S 88 23 W 5 57 S 236 39 W 236.45 S 88 39 W 5 30 S 276 82 W 276,87 S 88 54 W 4,64 S 317 82 W 317,86 S 89 10 W 3.74 S 359 22 W 359,24 S 89 24 W 2,39 S 401 30 W 401,31 S 89 40 W 0.38 S 443 91 W 443.91 S 89 57 W 2 38 N 486 82 W 486 82 N 89 43 W 6 05 N 529 10 68 N 571 16 12 N 611 22 28 N 649 29 49 N 686 38 01 N 721 47 83 N 754 58 54 N 787 70.00 N 820 85 W 529 57 W 571 55 W 611 96 W 650 51W 687 29 W 722 63 W 756 7O W 789 45 W 823 89 N 89 21 W 67 N 88 56 W 76 N 88 29 W 34 N 88 2 W 14 N 87 32 W 29 N 86 59 W 14 N 86 22 W 87 N 85 45 W 43 N 85 7 W COMPUTATION DATE: 11-APR-91 PAGE 7 BP EXPLORATION Y-30 ( 41-33-11-13 ) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 30-MAR-1991 KELLY BUSHING ELEVATION: 87,27 FT ENGINEER: JEFF FORMICA INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITV NORTH/SOUTH EAST/WEST DIST, AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN FEET DEG/IO0 FEET FEET FEET DEG MIN 8140 37 7987 27 7900 O0 19 17 N 68 0 W 846 87 8246 8352 8458 8564 8669 8775 8880 8985 9090 36 8087 34 8187 31 8287 O8 8387 78 8487 34 8587 61 8687 53 8787 22 8887 27 8000 27 8100 27 8200 27 8300 27 8400 27 85OO 27 8600 27 8700 27 8800 O0 19 23 N 66 49 W 881 O0 19 19 N 65 16 W 916 O0 19 9 N 63 33 W 950 O0 18 55 N 61 14 W 984 O0 18 58 N 58 45 W 1017 O0 18 26 N 55 45 W 1049 O0 17 56 N 52 41 W 1079 O0 17 27 N 50 24 W 1108 64 23 63 14 08 14 74 68 O0 17 15 N 47 31 W 1136.27 0.89 0.54 0.68 '~. 05 1 14 0 82 0 62 1 15 0 74 1 42 82.57 N 852.72 W 856.71 N 84 28 W 96.05 N 885.17 W 890.37 N 83 48 W 110.26 N 917.25 W 923.86 N 83 9 W 125.37 N 948.91 W 957 16 N 82 28 W 141.29 N 979.45 W 989 59 N 81 48 W 158.46 N 1009.08 W 1021 44 N 81 5 W 176.73 N 1037.52 W 1052 46 N 80 20 W 195.94 N 1064.22 W 1082 11 N 79 34 W 215.68 N 1089.06 W 1110 22 N 78 48 W 236.10 N 1112.36 W 1137 14 N 78 1 W 9194.97 8987.27 8900.00 16 33 N 46 48 W 1163.70 9299.08 9087.27 9000.00 16 3 N 44 58 W 1188.80 9403,11 9187.27 9100.00 15 47 N 43 3 W 1213.16 9507.03 9287.27 9200.00 15 47 N 43 3 W 1236.94 9540.00 9319.00 9231.73 15 47 N 43 3 W 1244.48 2.50 0.68 0.00 0.00 0.00 257.26 N 1135.29 W 1164.07 N 77 14 W 277.40 N 1156.08 W 1188.90 N 76 30 W 298.06 N 1175.98 W 1213.16 N 75 47 W 318.71 N 1195.27 W 1237.03 N 75 4 W 325.27 N 1201,39 W 1244.64 N 74 51 W SCHLUMBER©ER O [ AEC T I ONAL SURVE Y COMPANY BP EXPLORATI ON WELL Y-30 ( 41-33-11-13 ) FI ELD PRUDHOE BAY COUNTRY USA RUN ONE BATE LOGGED 30 - MAR - 91 REFERENCE ?4488 ,~/ELL: yo30(41-33-11-13) ~'~! 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'...~-A--i ...... i...~.-.~-..k-.b4---i-.i-~ ....... i..~.--i...i ....... ~.-i..-i...~ ...... i-,.i--4---~... ~--.~-4.-.4...~ ...... ~-..~.-4--4 ....... ~...~..-~-.-~ ...... ~..4..-~.-.i ....... {---~...4..-4--.;--.i-.-~--4-*.-- :Zi::.!Z '::.i:Z~Z: ::::]ZZ:: -H-H ....... H-.H ....... H-H ...... H--H--.-H-+-{ ...... bbb{ ....... H--H ....... H.-H ..... H-H--H-H---{ ....... H---H ....... H-H ....... H4.-H..H.-.H ...... H--H..-bb+.-H .... --*-.4-4.-~ .---}4--*.-4 ....... -~.~.4...b ...4-b,-.{-.-.4.4..,4- ?--]-~--t ...... t-'-t-'-t'--t ....... t-t-t-t---%t--t-t ....... t--?-t--t ....... t--t-.t--t ....... tm~t--t--t--t ...... t--t-.t-.t ....... t--t-.t--t ........ t---t.-t--t--:---t--t---t-.-~ ........ ?'t't't-'?-?'?-~ ...... ft.?-t.-t--.t--t.-t .... 284. PROJECTION ON VERTICAL PLANE Z84. - 104. SCALED IN VERTICAL OEPTHS HORIZ SCALE = I/SO0 IN/FT AOGCC GEOLOGICAL MATERIALS INVENTORY LIST PERMIT if <~[ --. .... !,~ .... WELL NAME ~)~ ~--,._,~ DATE L{ I~' ./ ~1 CO. CONTACT '~~ COMPLETION .... check off or list data as i{ is re~eivedZ;li'st received date for 407: if not require,d list as NR Cored'int~a~S core analysis '1~ dr~ ditch intervals d,!91tal da,ta i i i ii iii i i i i i L ii I LJI tlltl i iiii i i [ ii i i i i i i I I ! I i I I II iiiii iii i iii i I I I II II i ~ jllljjl u . I LOG TYPE RUN INTERVALS SCALE ......... NO. , ,[to the nearest foot] , ,, [inchl100"}, i ii i i i i ii i ii iii · I i ii ~ i i i i I iii ........ 111 I i i I ii i . ,, ,. 131 IL I III I II J I I I I I I ii .-. . I i i iii J I I ii iii iii J J I I I I I I ~1 I i i II I I I BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard PO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: DISTRIBUTION Date: 04/09/91 T#:82326 FROM: SUBJECT: Information Control Well Records LR2-1 .~P C..,A~ED HOLE FINALS Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. - P-14 COMPLETION 04/04/91 #1 9650-10334 SCH 5" ' P-15 PERF 03/30/91 #1 11790-12424 SCH 5" '-W-10 PRODUCTION 03/31/91 #1 14200-14570 SCH 5" "Y-30 CET 03/30/91 . #1 8834-9455 SCH 5" '-Y-30 CBT 03/30/91 #1 8834-9432 SCH 5" ,Z-26 CCL/P ERF 04/05/91 #1 11500-11720 ATLAS 5" Distribution: ARCO CHEVRON EXXON GEOSClENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES BP EXPLORATION BP Exploration (Alaska) Inc, 900 East Benson Boulevarcl P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561.5111 TO: DISTRIBUTION Date :04/12/91 T#:82305 FROM: SUBJECT: Information Control Well Records LR2-1 BP CASED HOLE FINALS Enclosed is your copy of the matedai listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. D-23 Completion 04/06/91 #1 10000-10478 Sch 5" F-30 TDT-P 04/09/91 #1 12040-12600 Sch 5" N-14 Completion 04/08/91 #1 8500-10104 Sch 5" N-16 Completion 04/07/91 #1 9110-10224 Sch 5" P-13 Perf 04/07/91 #1 9040-9345 Sch 5" Y-30 Perf 04/09/91 #1 8690-9435 Sch 5" Y-33 CBT 04/08/91 #1 10630-11483 ' S ch 5" Y-33 CET 04/08/91 #1 10630-11507 Sch 5" Y-33 Digtial CE-i' 04/08/91 #1 150-10630 Sch 5" Distribution: ARCO CHEVRON EXXON GEOSCIENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES £CEI VED APR 1,5 1991 41a~ka 0ii & Gas Cons. C°rnrnission Anchorage BP Exploration (,Alasr, a) inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: ARCO DATE :03/01/91 EXXON T#: 82147 PHILLIPS STATE OF ALASKA ARCHIVES SYSTEM Tape & Transmittal Only .BP MAGNETI~ LIS TAPE & LISTING Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. DITE/BHC/LDTD/CNL 02/20/91 SCH#74363 1600BPI 81 9071.5-9918.5 AP1#50-029-22'130 DIFL/BHC/CNL 02/23/91 #- 7590-9580 ATLAS#- 1600B Pi AP 1#50-029-22135 TAPE POS.#07622 TAPE POS.#07623 Information Control Well Records LR 2-1 J. Dietz/S. McCurry RECEIVED ~ ~ 1991 Oil & Gas Uot~s.~om~j$$io/3' Anchorage ALASKA OIL AND GAS CONSERVATION COMMISSION February 5, 1991 WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 Bill Kirton PBU Lead Engineer BP Exploration (Alaska) Inc. P. O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Unit Y-30 BP Exploration (Alaska) Inc. Permit No. 91-15 Sur. Loc. 1356'SNL, 5232'WEL, Sec. 34, TllN, R13E Btmhole Loc. lll9'SNL, l195'WEL, Sec. 33, TllN, R13E Dear Mr. Kirton: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. The Commission will advise you of those BOPE tests that it wished to witness. David ~_.Joh~ston, Chairman ._ Alaska Oil and Gas Conservation Commission dlf/enclosures cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 20 AAC 25.005 la. Type of work Drill [] Redrilll-Illb. Type of well. Exploratoryl-I Stratigraphic Testl-I Development OilE] Re-Entry [] Deepen []1 Service [] Development Gas [] Single Zone [] Multiple Zone[] 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exoioration 88' KBE feet Prudhoe Bay Fieid/Prudhoe 3. Address 6. Property Designation Bay Pool P. O. Box 196612. Anchoraae. Alaska 99519-6612 ADL 28287 4. Location of well at surface 7. Unit or property Name 11. Type Bond(see 20 AAC 25.025) 1356' SNL, 5232' WEL, SEC. 34, T11N, R13E Prudhoe Bay Unit At top of productive interval 8. Well number Number 1135' SNL, 1111' WEL, SEC. 33, T11N, R 13E Y-30 (41-33-11-13) 2S 100302630-2 77 At total depth 9. Approximate spud date Amount 1119°SNL, 1195' WEL, SEC. 33, T11N, R13E February3, 1991 $200,000.00 12. Distance to nearest 13. Distance to nearest well 4. Number of acres in property15. Proposed depth(UDandmVD) prop~L line 28288 ~ 4083' feet Y-8 @ 1849'/33' feet 2560 9467'MD/9244'TVDfeet 16. To be completed for deviated wells 17. Anticipated pressure (see 20 ^^c 25.035 (e)(2)) Kickoff depth ssoo'feet Maximum hole ancjle 2o.s o Maximum surface 3330 pslg At total depth (TVD) 8800'/4390 pslg 18. Casing program Specifications Setting Depth s~ze Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 20" Cond. 80' Surface 110' 110' 13-1/2" 10-3/4" 45# L-80 Butt 2650' Surface 2680' 2680' 2455 cu ft Coldset II & III 9-7/8" 7-5/8" 29.7# L-80 NSCC 9022' Surface 9052' 8856' 1268 cu fl Class G 6-3/4" 5-1/2" 17# NT80-S FL4S 665' 8802' 8623' 9467' 9244' 152 cu ft Class G 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 Conductor ISnl~ refrarnC;d iato RECEIVED Production Liner JAN 3,0 Perforation depth: measured "~.& Gas Cons. CQm iss/0= true vertical '-~,'t',~ ,. · 20. Attachments Filing fee [] Property plat [] BOP Sketch [] _Diverter~'k~t~lii~rilling program [] Drilling fluid pro~lram [] Time vs .depth plot [] Refraction analysis [] Seabed reportE3 20 AAC 25.050 requirements[] 21. I hereby certify..~hat the.foregoing is true and correct to the best of my knowledge Signed /~,~~~ TitlePBULeadEn,qineer /~y,~/ Date Commission Use Only Permit Number IAPI number IApproval date JSee cover letter ~/'-,/,~- 15°'c~?-' ~'?~' 102/0";/ql. Ifor other requirements Conditions of approval Samples required [] Yes .,.~rNo Mud log r~qu~,rea •Yes.,.'~;~ Hydrogen sulfide measures [] Yes'~ No Directiona~.l survey requ~re~ /~:] Yes E3'No Required working pressure for BOPE' 1'-12M; 1-13M; ,I~]5M; I-I10M; I-I15'M; Other: ¢--------~-----~'~, ~ by order of Approved~ ~'~~~=~- Commissioner zne commission Date Submit i~ triplicate AFE No. 125380 PROPOSED DRILLING AND COMPLETION WELL Y-30 1'41-33-11-13] PBU PROGRAM Install and cement 80' of 20" conductor to surface. The Drilling fluid program will consist of an 8.5-9.5 ppg spud mud in the 13-1/2" hole, a 9-9.8 ppg water base mud in the 9-7/8" hole and a 8.8 ppg water base mud in the 6-3/4" hole. Drill 13-1/2" hole to 2700' MD and cement 10-3/4" 45# 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 reservoir 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 9-7/8" hole to the 7-5/8" casing point at the top of Sag River formation. Run 7-5/8" 29.7# L-80 NSCC casing to within 10' of 9-7/8" TD and cement with Class G cement around the 7-5/8" shoe. The annulus will be freeze protected by dry crude. Formation leak-off tests will be performed 10' below both 10-3/4" casing shoe and 7-5/8" casing shoe as per AAC 25.030. Directional drill 6-3/4" hole to TD. Run 5-1/2" liner from TD to 250' inside 7-5/8" casing shoe and cement using Class G cement. Clean out to 5-1/2" float equipment. Change over to NaCL completion fluid. Test casing and lap to 3000 psi. Run 7-5/8" production packer on tubing. Set packer 50' above top of liner. A subsurface safety valve with dual control lines will be placed 100' below base of permafrost. Install and test Xmas tree. Displace tubing to diesel. Set and test packer. The well will be perforated after rig release. Fluids incidental to the drilling of a well will be pumped down the 7-5/8" x 10-3/4" annulus of the well. Tubing Size: Tailpipe Size: RIS 1/25/9~..~ 4-1/2", 12.6# 13Cr-80, TDS R-3 TBG with GLM's. 4-1/2" TAILPIPE RECEIVED jAN ,a/asa 0i~ & Gas Cons, C0.mmlsSll~ ~ch0rag~ 20" Conductor ii . {ELIMINARY WELL PLAN WELL Y-30 [41-33-11-13] PBU PROPOSED DEPTH BKB 110' Ball Valve 10-3/4" Casing Shoe 13-1/2" Open Hole 2100' 2680' 2700' 4-1/2" 12.6# 13Cr-80 TDS tubing with GLM's 7-5/8" Packer 8752' 5-1/2" Tieback Assembly 8802' 7-5/8" Shoe 9-7/8" Open Hole 9O52' 9062' 5-1/2" 17# 13 Cr FL4S Liner 5-1/2" PBTD 5-1/2" Liner Shoe 6-3/4" Open Hole 9387' 9467' 9467' RIS 1/25/91 PRELIMINARY WELL PLAN Well' Y-30 [41-33-11-13] PBU AFE NUMBER: 125380 LOCATION: Surface: 1356' SNL, 5232' WEL, Sec. 34, T11N, R13E Target: 1135' SNL, 1111' WEL, Sec. 33, T11N, R13E T.D.: 1119' SNL, 1195' WEL, Sec. 33, T11N, R13E ESTIMATED START: February 3rd 1991 OPR. DAYS TO COMPLETE: 1 9 CONTRACTOR: Alaska United #3 MAX ANGLE/SECT COURSE/KOP/BUILD RATE: 20.8°/N79.1 °W/5500/2.5 Item TVDs$ MD(BKB) Mud Wt. 20" CONDUCTOR 10-3/4" SHOE BASE WEST SAK FORMATION IKRU-PBU TOP SAG RIVER SANDSTONE 7-5/8" SHOE TOP SADLEROCHIT TARGET TOTAL DEPTH 110 110 8.5 2592 2680 9.5 5760 5849 9.0 7520 7717 9.8 8778 9062 9.8 8768 9052 9.8 8882 9174 8.8 8931 9226 8.8 9156 9467 8.8 LOGGING PROGRAM: Open Hole - Record all logs on magnetic tape where applicable. 9-7/8" Hole: NONE 6-3/4" Hole: DIL/GR/BHC/CNL/SP. (Optional LDT, RFT). Cased Hole CBT/CET and Gyro after rig release. Perforate after rig release. RIS 1/25/91 BOP STACK CONFIGURATION 13 5/8", 5000 PSI WP TRIPLE RAM STACK DRILLING I RISER ANNULAR I PREVENTER I ! I PI PE RAMS I I I · BLIND RAMS I 2" KILL LINE MANUAL HYDRAULIC GATE GATE · DRILLING SPOOL I PI PE RAMS 4" CHOKE LINE HYDRAULIC MANUAL GATE GATE ECEiVED JAN 3 (} 1991 ~chora~ SLI. RFACE HOLE DIVERTER SYSTEM Two lines venting 90 deg. apart in directions that ensure safe down wind venting, and ex- - tending to a point at least 100' from any potential source of ignition. ,10" Full Opening Valves 35' or as required .., Dresser Sleeve _. -L. 1. All pipe connections 150# ANSi Flanges or welded connections and secured to prevent movement. 2. Manual 10" full opening valves mechanically connected to ensure that one valve is fail-safe open at all times. 10" Diverter Line 3. All tums are 90 deg. and targeted. 10" Full opening ball valve wi Hydraulic Actuator Cellar · 20" Diverter Spool w/10" Side Outlet M EM 1/'3/90 _.S45DUA247' [DRANO25]Y30_CLOSAP_SHORT. LIS;2 24-JAN-199i 15:06 Page 1 --- Closest Approach Analgsis --- Search Radius= 200 COURSE LINE ---F-o r--p~.po~e-d--weJ~14---Y--~30 --L41---33-- ! ! - ! 33 Location = W-E S-N TVD (SBS) Bottom 643871. 52 594~104. 91 9007. O0 No~e: Ail d.~.~ i~eet Be~.w~e!ly_Bu~hing~. , Ci.osesi_~;lp~omcb WELL IDENT /PROPOSED\ /NEARBY\ TVD DEPART TVD DEPART ., ~md~£cal Iu~e.r~.ec~tion CLOSEST /PROPOSED\ /NEARBY\ VERTICAL DISTANCE TVD DEPART TVD DEPART DISTANCE A0~-~041100 Y-3 NO COORDINATE POINTS WITHIN SPECIFIED SEARCH WINDOW 3600.8 O. 0 3593. 7 200. 4 325. 37aJ.._ 5 o_o 37_sA_m ~ ~o. ~ ~mo_ ~815.0 O. 0 2814. 0 13. 1 380. ,~ :,,~ Y-11RD 1. .~ ?! A029-2051700 ;sc __,y_ 1 ~ , , · i,~,, A029-2056000 ) !s~i Y-7 701. 0.0 0.0 LT_Q._~ &~8Q O. 0 69'7. O. 0 386. 7 · ' !s:: Y-8 1849. 3 · '?: [ :~i Y-lO 1202. 3 : ? aO2_~O63!iO0 0.0 1848.4 1~.4 33.3 0.0 1200.0 6.6 2~0. 8 :~o Y-13 ~702.4 i.:~' y_~ , , :i~3' A0~9-~1~7400 i)~:i Y-~I llO0. O 0.0 2699.9 9.8 578.7 0.0 200.0 0.4 181.8 0.0 1100.0 7.5 '288.4 , !~ Y-20 ( 299.0 '~: A029-2159000 .;? AO~9-2I&0800 )i~o! Y-~4 810.4 O. 0 300. 0 O. 9 401. 1 ~0. 0 _300~0 0_5____ 7_1._9 O. 0 811. 3 20. 8 35. 4 _._8208__8 .... I 12__8 17~l~5. 1 5.4.7 -4.~_6 ?~ Y-14 }!:' A029-2185700 ~ '._ Y:-_l_g 180~Z_~ ...... O- 0 ':':, A02C2-2188300 ~"' A ''~ 2"" 9:2 ......... 0~-9__-. ~-O1 .. '00 ............................................... Y--'~7 ( 307. 8 O. 0 ............................................ , ............ NO COORDINATE POINTS WITHIN SPECIFIED SEARCH WINDOW ____~800_~ ___7~Z_.__507_~ 7840._~ ......... Z30~ .......... A04~__7_ 0.0 0.0 219.8 7810.4 84~.4 4330.8 300.0 0.5 442.1 448.3 -3270.3 The sell shich comes closest to the p~oposed well is: _$45DUA~47:[DRANO25]Y30_CLOSAP_SHORT. LIS;2 24-JAN-l~l 15'06 Page A02~-~057200 Y-8 Closest approach distance = 33. 3 ~eet KiCK OFF ~or this run = 5500.0 ~eet ., . · ~ _~45DUA~47:[DRANO~5]Y30_CLOSAP_SHORTT, LIS;2 24-JAN-1991 15:07 Page --- Closest ApprOach Analgsis --- D~te;.-~4~JAN~.~.I ....... ~.i me. >-.-15: 07 :.36 Search Radius= 200 7 DEQREE LEAD LINE Location = W-E S-N TVD (SDS) ---~o~ ........ ~1.~0~--5~48~00.-00 , ~8~0 Bottom 643655, 41 5~48~58, 42 ~007, O0 " C~e~s-t--Ap p ~om cb '~: WELL IDENT /PROPOSED\ /NEARBY\ CLOSEST ].}':c'i TVD DEP AR T TVD DEP AR T D I STANCE Ve~t!cm!_I~qte~sect~oo /PROPOSED\ /NEARBY\ VERTICAL TVD DEPART TVD DEPART DISTANCE ~'~: A029-20411 O0 .~ ~' ~ ¥-3 NO COORDINATE POINT8 WITHIN SPECIFIED SEARCH WINDOW .. ~=:: Y-4 i.~' iii} A029-20431 O0 '~: A029-2051300 ~;: r:' Y-i 1 ~::~---AO~-~--205 ! 301 3600,8 0.0 3593,7 200.4 325. 1 376!_5 0_0 37-54.8 1~0__9 13Cl~O 2815,0 0,0 2814.0 13.1 ~ 360,2 _.. 0.0 366.7 , ~.~ ''. 71.0 · 849. 3 O. 0 1848. 4 :,-O O,-O 0~0 1~0~, 3 O, 0 1200, 0 19.4 33.3 _ a7oa. 4 o.o ~99.9 9.8 578.7 l~.~_~ o~o ~oo o 0__4 _ 1B~_~ 1100.5 0.0 1100,0 7;5 ~88,4 7!007 Y-~O ( 299.0 0.0 300,0 0.9 A029-~159000 ___Y=~3 a99_a 0_0___.300_O 0--5 A0~-~160800 ' Y-a4 810.4 0,0 811.3 aO, 8 35,4 .... A0~9_=~=.183~00 ........................................................ Y-14 NO COORDINATE POINTS WITHIN SPECIFIED SEARCH WINDOW AOaD-ai85700 ...... ~=19 ..................... 1807..7 ....... O. 0 ............. 1S00.0 7.7 ........... 507.1 A0~-~188300 Y-25 9.3 0.0 0.0 0.0 ~19.8 A029-2201900 Y-~7 ( 307.8 0.0 300.0 0.5 442. ! 401.1 _ZI_-9 ....... &144._~ ............. 93_~-- ......... 1.59&._,2- .... 3L_5----~-4549.5 76~.5 -- ~44.8 3789.1 206.-.6 7041.5 42~.1 38~6.~ 223.1 -3819.7 ..... -3135.9 The well which comes closest to the proposed weii is: _~4~DUA~47: [DRANO~5]Y30_CLOSAP_SHOR. TT. LIS~ 2 24.-dAN- 1 ~ 1 15:07 Page 2 :'." ,,. A0~9-~057200 Y-8 Closest approach distance = 33.3 ~eet KICK OFF ~or this run = 5500.0 '35 ALASKA UNITED RIG NO. 3 MUD SOLIDS CONTROL EQUIPMENT 1 - Brandt Dual Tandem Shale Shaker 1 - Demco 6-12" Cone Shale Desander 1 - Demco 416H w/16 cones & (1) Demco 48H w/16 cones (Desiiter) 1- Tri-Flo Horizontal Vacuum Atmospheric Mud Degasser 1- 200 gpm Operating Capacity Centrifuge 19- Brandt MA5 Mud Mix Agitators 1- 125 bbl. Trip Tank 1- Recording drilling fluid pit level indicator with both visual and audio warning devices at driller's console 1- Drilling fluid flow sensor with readout at driller's console 1- Cavium Dewatering screen assembly MUD WEIGHT WELL Y-30 CALCULATIONS (41-33-11-13) Mud Wt. (6-3/4" Hole): 8.8 ppg. P Sag River: P Sadlerochit: P Top Sadlerochit: 3900 psi. 3710 psi. at 8800' TVD SS (=8888' TVD BKB) 3739 psi. (gas grad. 0.12 psi/fi) (oil grad. 0.35 psi/fi) OB Sag River: OB Top Sadlerochit: Current GOC: 157 psi. 366 psi. Above Top of Sadlerochit 7-5/8" Casing Pt. Top Sag River Top Sadlerochit 8856' TVD BKB 8866' TVD BKB 8970' TVD BKB Cement Calculations 10-3/4" CASING Measured Depth: Basis: Total Cement Vol: Lead Slurry Vol: Tail Slurry Vol: 7-5/8"CASING Measured Depth: Basis: Total Cement Vol: Lead Slurry Vol: Tail Slurry Vol: ,5-1/2" LINER Measured Depth: Basis: Total Cement Vol: 2680' 2.5 x Annular volume (0.3637 cuff/fi) 2455 cuff 1400 cuff 729 Sx Cold Set III @ 1.92 cuft/Sk 1056 cuff 1100 Sx Cold Set II @ 0.96 cuft/Sk 9052' 90% Annular Vol. to 10-3/4" shoe +36 cuff (0.2148 cuft/ft) 1268 cuft 1118 cuff 565 Sx G+8% @ 1.98 cuft/Sk 150 cuff 130 Sx Neat G @ 1.152 cuft/Sk 8802' Hanger- 9467' Shoe 1.5 X Annular volume to 7-5/8" shoe + 100 cuft (0.0835 cuff/fi) 152 cuff 129 Sx Neat G at 1.175 cuft/Sk RIS 1/25/91 RIG 3 MUD SYSTEM iii ALASKA UNITED DRILLING INC. RIG 3 MUD SYSTEM ' Oclober 1987 N15 CHECK LIST FOR NEW WELL PERMITS ITEM APPROVE ~ (~ thru 8 (9 thru~i3~' (10 and 13) · (4) Casg ~,~,~' (14 thru 22) (23 thru 28) (6) OTHER (6) Add: Geology: Dwa RPC~_.~ Engineerin$: LCS rev: 11/30/90 6.011 '- / YES Is the permit fee attached .......................................... ~_ Lease & Well No. NO 2. Is well 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. Is operator the only affected party ................................. 8. Can permit be approved before fifteen-day wait ...................... 9. Does operator have a bond in force .................................. 10. Is a conservation order needed ...................................... 11. Is administrative approval needed ................................... 12. Is the lease number appropriate ..................................... 13. Does the well have a unique name and number ......................... 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. Is conductor string provided ........................................ Will surface casing protect all zones reasonably expected to serve as an underground source of drinking water ..................... 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 ............ Is adequate wellbore separation proposed ............................ 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 ~'OOo psig .. zFz.~ Does the choke manifold comply w/API RP-53 (May 84) .................. Is the presence of H2S gas probable ................................. REMARKS For 29. 30. 31. 32. 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 ............................................. 'INITIAL GEO. UNIT ON/OFF POOL CLASS STATUS AREA NO. SHORE , Additional Remarks: Fo_._ / F .5'o ' 4. z<" v-- d ' ! / 0 o~ ~ Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history, file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. , No special effort has been made to chronologically organize this category of information. · PROGRAM: LISCAN REVISION: 5.2 Start of execution: Tue 26 FEB 91 l:10p **** REEL HEADER **** LIS 91/ 2/26 AWS 01 PART NUMBER: W5790-MICRO < **** TAPE HEADER **** LIS 91/ 2/26 01 RECEIVED MAR 8 1991 FILE# LIS .001 1024 CN WN FN COUN STAT 1 **** FILE HEADER **** : BP EXPLORATION (ALASKA) : Y - 30 (41-33-11-13) : PRUDHOE BAY : NORTH SLOPE : ALASKA * COMMENT RECORD * API NO. 50-029-22135 LOG DATE 2/23/91 FILE 1: MAIN PASS DIFL/BHC AL/ CN (8950 - 9580 FT) * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME TAPE DEPTH UNIT : F 16 CURVES : NAME 1 AC 2 ACQ 3 CHT 4 CILD 5 CLSN 6 CN 7 CNC 8 CSSN 9 GR 10 RFOC 11 RILD 12 RILM 13 SP 14 SPD 15 TEMP 16 TTEN CODE SAMPLE# UNIT BYTES 68 1 US/F 4 68 1 DIM 4 68 1 LBF 4 68 1 MMHO 4 68 1 CPS 4 68 1 % 4 68 1 % 4 68 1 CPS 4 68 1 API 4 68 1 OHMM 4 68 1 OHMM 4 68 1 OHMM 4 68 1 MV 4 68 1 F/MN 4 68 1 DEGF 4 68 1 LBF 4 * DATA RECORD DEPTH CLSN RFOC TEMP 9580.000 -999.2500 -999.2500 -999.2500 9530.000 25.00000 4.648612 179.~0550 9480.000 164.5127 8.233953 179.6434 9430.000 248.9584 8.124214 179.5609 9380.000 153.3353 6.486699 178.7897 9330.000 150.1255 13.32321 177.6057 9280.000 123.1074 (TYPE# 0 ) AC CN RILD TTEN -999.2500 -999.2500 -999.2500 -999.2500 86.64447 0.0000000E+00 1.640341 4432.227 83.00027 14.45134 2.050969 4465.812 73.02786 9.123013 3.712873 4570.168 74.96529 17.34216 6.017934 4444.160 86.28206 16.80600 2.532555 4361.016 80.44469 18.81889 958 BYTES * ACQ CNC RILM -999,2500 -999.2500 -999.2500 0.0000000E+00 0.0000000E+00 1.745508 0.0000000E+00 19.34541 2.239345 0.0000000E+00 13.67447 4.312119 0.0000000E+00 22.32501 6.436283 0.0000000E+00 21.77222' 2.682939 0.0000000E+00 23.84792 CHT CSSN SP -999.2500 -999.2500 -999.2500 1501.287 100.0000 -88.29485 1518.853 257.5535 -87.05272 1527.850 320.1694 -76.64117 1481.716 261.2529 8.373493 1429.026 252.0272 -78.49306 1424.419 218.0675 CILD GR SPD -999.2500 -999.2500 -999.2500 609.6294 0.0000000E+0© 31.99680 487.5745 38.21767 31.99680 269.3333 25.38167 31.99680 166.1700 116.2782 31.99680 394.8582 25.47560 31.99680 124.4414 113.7619 6.459156 175.9561 9230.000 161.1719 34.02762 173.7963 9180.000 438.0662 455.6638 171.4203 9130.000 246.9621 26.02460 167.7019 9080.000 37~26820 2.431103 165.5822 9030.000 33.30782 1.347832 164.1714 8980.000 35.22371 0.2000000 100.0000 8.035910 4374.090 86.06953 14.95811 16.12758 4450.363 64.92020 3.760447 70.14294 4466.520 73.25586 9.689749 16.82608 4439.977 109.0701 55.95810 1.209308 4387.922 56.98892 68.40028 10.56536 4352.660 50.00000 63.80650 0.2000000 3000.000 8.099003 0.0000000E+00 19.86758 15.94319 0.0000000E+00 7.509014 137.9208 0.0000000E+00 14.31222 19.48227 0.0000000E+00 59.89149 1.334066 0.0000000E+00 71.75374 10000.00 0.0000000E+00 67.37401 0.2000000 -17.92670 1525.581 256.3271 -67.48531 1552.088 419.1389 2.250340 1537.450 325.3899 -11.02976 1443.844 111.2686 11.74578 1389.764 108.2874 -88.96088 500.0000 111.2577 -80.00000 31.99680 62.00562 22.59428 31.99680 14.25660 83.64128 31.99680 59.43153 70.34824 31.99680 826.9192 111.3449 19.99210 94.64888 60.91743 19.03380 0.0000000E+00 63.66750 0.0000000E+00 TOTAL DATA RECORDS : STARTING TAPE DEPTH = **** FILE TRAILER **** 91 9580.00 ENDING TAPE DEPTH = 8950.00 **** REEL HEADER **** LIS 91/ 2/26 AWS 01 **** TAPE HEADER LIS 91/ 2/26 01 FILE # LIS .001 **** FILE HEADER **** 1024 CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : Y - 30 (41-33-11-13) : PRUDHOE BAY : NORTH SLOPE : ALASKA * COMMENT RECORD * FILE 2 : REPEAT SECTION : DIFL/CN/BHC AL (8970 - 9580 FT) * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME TAPE DEPTH UNIT : F 16 CURVES : NAME CODE SAMPLE# UNIT BYTES 1 AC 68 1 US/F 4 2 ACQ 68 1 DIM 4 3 CHT. 68 1 LBF 4 4 CILD 68 1 MMHO 4 5 CLSN 68 1 CPS 4 6 CN 68 1 % 4 7 CNC 68 1 % 4 8 CSSN 68 1 CPS 4 9 GR 68 1 API 4 10 RFOC 68 1 OHMM 4 11 RILD 68 1 OHMM 4 12 RILM 68 1 OHMM 4 13 SP 68 1 MV 4 14 SPD 68 1 F/MN 4 15 TEMP 68 1 DEGF 4 16 TTEN 68 1 LBF 4 * DATA RECORD (TYPE# 0 ) .958 BYTES * DEPTH AC ACQ CHT CILD CLSN CN CNC CSSN GR RFOC RILD RILM SP SPD TEMP TTEN 9580.000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 9530.000 25.00000 4.945837 181.4632 -999.2500 -999.2500 -999.2500 86.25969 0.0000000E+00 1.638760 4457.945 -999.2500 -999.2500 0.0000000E+00 0.0000000E+00 1.759385 -999.2500 -999.2500 1805.094 100.0000 -87.30644 -999.2500 -999.2500 610.2178 0.0000000E+00 31.99091 9480.000 166.8909 8.470890 182.8152 83.89484 14.81276 1.985852 4512.871 0.0000000E+00 19.71780 2.158729 1893.056 264.2380 -86.74785 503.5623 28.36435 30.99690 9430.000 262.5090 8.953764 182.7501 73.06166 8.582594 3.841029 4597.703 0.0000000E+00 13.06667 4.386254 1805. 719 329.5786 -74.66171 260.3469 24.36052 30.43890 9380.000 157.5530 6.925099 182.1595 74.97177 16.20940 5.950292 4510.437 0.0000000E+00 21.15720 6.513600 1848.107 260.0583 11.34713 168.0590 115.4663 29.99701 9330.000 144.9814 12.81383 180.6893 87.16519 17.17354 2.504739 4352.312 0.0000000E+00 22.15115 2.576062 1743.695 245.8826 -78.07820 399.2432 23.53818 29.99701 '9280.000 116.9170 6.605183 179.1006 80.62872 20.17947 8.324919 4413.109 0.0000000E+00 25.25154 8.626347 1707.810 214.1799 -14.77995 120.1213 111.9955 29.99701 9230.000 161.9008 34.03697 177.1593 86.29665 15.41000 16.33652 4442.387 0.0000000E+00 20.33328 15.82852 1662.259 261.0364 -65.53020 61.21254 21..25546 29.99701 9180.000 448.9038 402.5876 174.5649 64.67850 3.415963 80.85382 4474.148 0.0000000E+00 7.057958 145.6810 1634.038 418.8582 8.132290 12.36800 82.91254 28.99710 9130.000 264.1279 23.69202 170.5420 73.30460 8.572840 17.41090 4455.855 1.000000 13.05570 19.98645 1436.087 331.4641 -0.7850941 57.43526 66.21358 17.99820 9080.000 39.29930 2.414800 167.8662 109.5840 52.76089 1.214725 4365.891 0.0000000E+00 56.84341 1.345723 1478.088 114.3212 21.35497 823.2319 112.8947 17.99820 .9030.000 31.62891 0.2000000 100.0000 57.15459 79.09079 0.200-0000 3000.000 0.0000000E+00 81.94638 0.2000000 500.0000 108.9840 -80.00000 0.0000000E+00 61.28365 0.0000000E+00 8980.000 50.00000 0.0000000E+00 500.0000 0.0000000E+00 25.00000 0.2000000 100.0000 O.O000000E+O0 O.O000000E+O0 0.2000000 0.2000000 3000.000 100.0000 -80.00000 64.21094 0.0000000E+00 TOTAL DATA RECORDS : STARTING TAPE DEPTH = ****'FILE TRAILER **** 88 9580.00 ENDING TAPE DEPTH = 8970.00 **** REEL HEADER **** LIS ~ 91/ 2/26 AWS 01 **** TAPE HEADER **** LIS 91/ 2/26 01 FILE # 3 LIS .001 **** FILE HEADER **** 1024 CN WN .FN COUN STAT : BP EXPLORATION (ALASKA) : Y - 30 (41-33-11-13) : PRUDHOE BAY : N. SLOPE : ALASKA * COMMENT RECORD * FILE = CASED HOLE GR (7590 - 9080 FT) * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME TAPE DEPTH UNIT : F 6 CURVES : NAME 1 CHT 2 GR 3 SPD 4 TEMP 5 TEN 6 TTEN 68 68 68 68 68 68 CODE SAMPLE# UNIT BYTES 1 LBF 4 1 API 4 1 F/MN 4 1 DEGF 4 1 LBF 4 1 LBF 4 * DATA RECORD DEPTH TEN (TYPE# CHT TTEN 0) 1014 BYTES * GR SPD TEMP 9080.000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 9030.000 -75.32373 -1336.499 3804.663 61.42467 34.57910 154.2975 8980.000 -31.82277 -1123.113 3814.676 62.27504 34.46370 152.9307 8930.000 -33.94650 -1088.428 3765.663 57.08916 34.41681 150.8527 8880.000 -20.77020 -890.4897 3755.809 81. 61871 34.48700 149.2017 8830.000 -13.88086 -624.6418 3691.023 76.40068 48.35310 149. 1890 8780.000 -33.64822 -767.6365 3704.276 77.78639 47.92171 147.9175 8730.000 -39.35112 -812.3652 3660.800 50.75822 48.00110 147.5875 8680.000 -22.89635 -711.0513 3661.298 62.68109 48.14490 145.4795 8630.000 -38.99304 --1260.502 3636.388 62.28941 48.16560 144.3350 8580.000 -44.47084 -813.9041 3600.771 77.81447~ 48.30931 143.2990 8530.000 -33.90839 8480,000 -32.97050 -715.6658 3.586.439 -1108.797 3551.186 71.20377 71.59109 48.00110 47.99521 142.8210 140.4524 8430.000 -33.34933 -1267.759 3552.975 71.35161 48.00110 140.4550 8380.000 -44.07617 8330.000 -39.14128 -1830.475 3521.468 -1490.233 3488.006 75. 80258 47. 99521 137. 3964 62.66940 47.99521 135.0247 8280.000 -1267.764 52.12811 48.92160 134.3373 -33.64975 3446.129 8230.000 -1582.399 52.25803 48.10440 131.8992 -15.82706 3438.903 8180.000 -15.04504 8130.000 -24.35883 8080.000 -31.69469 8030.000 -33.52470 7980.000 -39.10101 7930.000 -40.43753 7880.000 -28.50072 7830.000 -26.41757 7780.000 -40.72513 7730.000 -24.29936 -1736.121 3444.939 -1737.920 3410.394 -1615.877 3381.857 -1419.189 3372.370 -2238.406 3356.478 -1895.682 3313.336 -1934.755 3321.596 -1737.381 3283.648 -2036.995 3261.027 -1949.853 3267.995 -1607.749 3230.283 -1986.793 3200.452 7680.000 -40.46863 7630.000 -38.09026 65.79166 47.99521 129.8980 68.50711 48.07460 128.5721 71.72908 48.18271 127.7773 72.33446 47.69821 126.5058 65. 29305 48. 18271 125. 5974 72.51138 47.99521 124.0992 68.44650 47.86861 122.8633 70.14221 47.88380 121.9255 63.10089 47.98340 120.5869 137.6698 47.93340 120.3135 141. 1869 47. 91231 119. 2764 111.8794 47.66600 118.0014 TOTAL DATA RECORDS : STARTING TAPE DEPTH = **** FILE TRAILER **** 83 9080.00 ENDING TAPE DEPTH = 7590.00 **** TAPE TRAILER **** LIS 91/ 2/26 ' 01 TOTAL RECORDS IN THIS LOGICAL TAPE : 284 **** REEL TRAILER **** LIS 91/ 2/26 AWS 01 TOTAL RECORDS IN THIS LOGICAL REEL : TOTAL RECORDS IN THIS PHYSICAL REEL: End of execution: Tue 26 FEB 91 l:llp Elapsed execution time = 22.69 seconds. SYSTEM RETURN CODE = 0 285 285
