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Home My WebLink About194-096ON BEFO P_~ _ ~,L u .° ~--~~ Memorandum To: Well File' Prudhoe Bay Unit S-40 Permit # 94-0096 Re' Administrative Abandonment Action Prudhoe Bay Unit S-40 Permit # 94-0096 State of Alaska Oil and Gas Conservation Commission April 8, 1999 This memo will remain at the front of the subject well file. Well S-40 was replaced by S-40A (permit # 96-0125, API# 50-029-22494-01) when the permit was approved 9/14/96. The replacement well incorporates a deepening operation of the existing well bore. This extension, along with the original hole, will be used for production of hydrocarbons. A review of both well files indicates administrative abandonment of the originating well bore is appropriate according to current AOGCC procedures for wells where additional permitted extension is drilled from an existing well bore. 20 AAC 25.005(e) requires a Permit to Drill for each hole drilled below the conductor unless drilled to straighten the original hole, sidetrack junk, or correct mechanical difficulties. In addition, AOGCC data bases require each conductor has only one permit number and APl number. Administrative abandonment of the original permit only eliminates duplication in the databases. Information for the original well and its replacement will be maintained in their respective files. The operator has been notified of this action. Ail future correspondence with the AOGCC should reflect the new permit number, AP1 number and well data. Statisticalmechnicia~~~lOReservoirEngineer//~~" - {~0/-"~,/~, ~~~~ Petroleum Geologist ,~~. ~~/ Commissione~ ~ TONY KNOWLE$, GOVERNOI~ ALASKA OIL AND GAS CONSERVATION COMMISSION 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 April 8, 1999 Mr. Fritz Gunkle SSD Drilling Manager BP Exploration (Alaska), Inc. P O Box 196612 Anchorage, AK 99519-6612 Dear Mr. Gunkle, Re: Administrative Abandonment Action Prudhoe Bay Unit S-40 Permit # 94-0096 Well S-40 was replaced by S-40A (permit # 96-0125, AP! # 50-029-22494-01) when The permit was approved 9/14/96. The replacement well incorporates a deepening with the existing well bore. The extension, along with the original hole, will be used for production of hydrocarbons. A review of both well files indicates administrative abandonment of the originating well bore is appropriate according to current AOGCC procedures for wells where additional permitted extension are drilled from an existing well bore. 20 AAC 25.005(e) requires a Permit to Drill for each hole drilled below the conductor unless drilled to straighten the original hole, sidetrack junk, or correct mechanical difficulties. In addition, AOGCC data bases require each conductor has only one permit number and APl number. Administrative abandonment of the original permit only eliminates duplication in the databases. Information for the original well and its replacement will be maintained in their respective files. Please notify other cognizant personnel in your organization so that the well will be correctly identified on subsequent reports and applications submitted to the Commission. Sincerely, Steve McMains Statistical Technician AOGCC cc: Gary Benson STATE OF ALASKA ALASJ¢--~ OIL AND GAS CONSERVATION COMMISSI~'''''' REPORT C SUNDRY WELL OPE, .ATIONS 1. Operations performed: Operation shutdown Stimulate x Plugging.__ Pull tubing__ Alter casing __ Repair well Perforate__ Other__ 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. O. Box 196612, Anchora_cle, Alaska 99519-6612 4. Location of well at surface 2237' SNL, 712' EWL, SEC. 35, T12N, R12E At top of productive interval 196' NSL, 1637' WEL, SEC. 35, T12N R12E At effective depth 1069 SNL, 1173' WEL, SEC.2, T12N R12E At total depth 1045'SNL, 1177' WEL, SEC. 2, T11N, R12E 5. Type of Well: Development Exploratory Stratigraphic Service 6. Datum elevation (DF or KB) KBE=¢7.4 7. Unit or Property name Prudhoe Bay Unit feet 8. Well number S-40(41-02-11-12) 9. Permit number/approval number 94-96 / 10. APl number 50-029-22494 11. Field/Pool Prudhoe Off Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical 11366 feet Plugs (measured) 8787 feet 11390 feet Junk (measured) 8787 feet ORIGINAL Casing Length Structural -- Conductor 110 Surface 3094 Intermediate 9835 Production -- Liner 1645 Perforation depth: Size Cemented 20 260 sx Arcticset 10 3/4 995 sx CS 111/375 sx "G" 7 5/8 720 sx Class "G" 4 1/2 Uncemented slotted Liner measured 10079;10419', 10473;10841', 11002;11341' true vertica§ubsea 8781'-8782', 8773'-8783', 8783'-8787' Tubing (size, grade, and measured depth)4 1/2", L-80 @9636' Measured depth 153 3137' 9878 True vertical depth BKB 153 3068 8718 9721'-11366' 8647'-8787 Packers and SSSV (type and measured depth)Packer @ 9600', 10078', 10463', 10916' and SSSV@2160' 13. Stimulation or cement squeeze summary~ee Attachment Intervals treated (measured) Treatment description including volumes used and final pressure 14. Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation Subsequent to operation 15. Attachments Copies of Logs and Surveys run__ Daily Report of Well Operations 16. Status of well classification as: OiiX Gas Suspended Service 17. I hereby certify that,the for, e~oing is true an~ correct to the best of my knowledge. Si~lned ~~*_-~,~f~¥.'~¢-~-/~-/:~ ~,~--~ ~-~ TitleTochnicalAssistan, l,I Form 10-404 Rev 06/15/88 Date SUBMIT IN DUPLICATE S-40 DESCRIPTION OF WORK OOMPLETED Stimulation Operation 07/25/97 A Acid StimulationTreatment was performed using the following fluids: SUMMARY Load well with 175 bbls FSW while running in the hole. Dry tag td at 11440' ctm, pulled 5k over. Pump 206 bbls 15/10 HCL/Xylene as per program reciprocating coil over entire slotted liner interval, good acid response, were able to get down to 11575' ctm without any sticking or over pulls. Sat down one time at 10449' ctm, picked up and went right down hole without any problems. Made one quick pass at tail pipe jetting acid to clean any scale build up. Pumped 63 bbls FSW while pulling out of hole to keep well bore full. Rig down and turn well over to Trico for flowback and acid neutralization. Fluids Pumped BBLS. Description 206 15/10% HCL/Xylene acid as per program 270 Fresh Seawater 476 Total DESCRIPTION OF WORK COMPLETED Stimulation Operation 09/22/97 A Scale Inhibitor Treatment was performed using the following fluids: SUMMARY S well and gas lift in. Pumped scale inhibitor, volumes shown below. Left well shutin until 0:30 am tonight. Fluids Pumped BBLS. Description 48 Scale Inhibitor, B34 10% solution in seawater 369 Filtered Seawater 417 Total PERHIT 94 - 096 94 *.-096 94-.-'096 94~..096 9a,-~096 94---096 9k,..~096 94.-096 '--' AC,,3C,S ind') v"(dua '1 '¢/e i i t%_~, og'ica'i Hater"¥a i s Ir'lven'L'or'y DATA T DATA._PL LIS ~-2 T 97,.~2--'11366 HWD & 6R ~)'? R COhIP DATE: 08/'27/94 , a dp R os/'o's os/xs/94 ~\/EY R 0,00---11966 ~ L 97a2-~1'i321 TVD ~: L 9742.--11321 PFC/GR/CCL L. 10100-'10~50 L 2200-~11270 I3,,s'~'Le ~ 06/08/96 RUN DATE._.R EC. VE' '1 (39/12/'9a 09/26,,/ 09/'~'6/94 09/i~6/9,.,. · 1 09/1 1 09/12/9h. · 1 06/01/'95 I 0 1/23/'95 Ar'e dr"y d~'tch sarnp'ies r'equ~'r'ed? yes /~ And r'ece'¥ved? trw w~i 'J ~'" Was '-'~ cor'ec~ yes r ~a'i ysS's a descr"¥pt~'on r'ece'¥ved? Ar"e v,/ei'i tests r'equ~'r'ed'~/y~s ~ece~'ved? yes~ We'ii ~s ~'n comp i~'ance .~.. ,C OM H E N T S RECEIVED JAN 25 1995 Alaska Oil & Gas Cons. Commission Anchorage LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Date: 16 January 1995 RE: Transmittal of Data Sent by~ MAIL Dear Sir/Madam, Enclosed, please find the data as described below: WELL '"'?~--79 R-25 (32-31-11-13) DESCRIPTION 1 PLS/STP FINAL BL+RF 1 PLS FINAL BL+RF 1 PLS FINAL BL + RF 1 PLS FINAL BL+RF ECC No. Run ~ 1 1418.04 Run # 1 5778.02 Run # 1 6277.02 Run # 1 6341.00 Please sign and return to: Attn. Rodney D. Paulson Atlas Wireline Services 5600 B Street Suite 201 Anchorage, AK 99518 Or FAX to (907) 563-7803 Received by: Date: STATE OF ALASKA ALASKA (J~L AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMP LETION REPORT AND LOG 1. Slatus of Well Classification of Service Well OIL [] GAS [] SUSPEt,,DF_D [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number BP Exploration 94-96 3. Address 8. APl Number P. O. Box 196612, Anchorage, Alaska 99519-6612 50-029-22494 4. Location of well at surlace 9. Unit or Lease Name '~ :ii~."~i(~1.i" .....~'~I~ ' i 10.PrudhooBayUnitwell Number 2237' SNL, 712' EWL, SEC. 35, T12N, R12E At Top Producing Interval .1.!;~=~_j~ S-40 (41-2-11-12) 196' NSL, 1637' WEL, SEC. 35, T12N, R12E /'~._~--~._~~.../;~~ 11. Field and Pool At Total Depth ~ ........ Prudhoe Bay Field/Prudhoe Bay Pool 1045'SNL, 1177' WEL, SEC. 2, T11N, R12E 5. Elevation in feet (indicate KB, DF, etc.) ~6. Lease Designation and Serial No. KBE = 67.4' I ADL 28260 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth, il offshore 116. No. of Completions 8/6/94 8/22/94 8/27/94I N/A feet MSL I One 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD) 19. Directional Survey 120. Depth where SSSV set ~21. Thickness of Permafrost 11366'MD/8787'TVD 11341'MD/8787'TVD YES [] N~ []I 2160'feet MD ! 1900'(Approx.) 22. Type Electric or Other Logs Run LWD 23. CASING, LINER AND CEMENTING RECORD SETI'ING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP Bo'FrOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" 91.5# H-40 30' 110' 30" 260 sx Arcticset (Approx.) 10-3/4" 45.5# NT-80 31' 3137' 13-1/2" 995 sx CS 111/375 sx "G" 7-5/8" 29. 7# NT-95 27' 9878' 9-7/8" 720 sx Class "G" 4-1/2" 12. 6# 13CR/L-80 9721' 11366' 6-3/4" Uncemented slotted liner 24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) Slotted Liner 4-1/2", L-80 9636' 9600', 9721' MD TVD 10078', 10463', 10916' 10079'-10419' 8773'-8783' 10473'-10841' 8781'-8782' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 11002'- 11341' 8783'-8787' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 27. PRODUCTION TEST Date First Production IMethed of Operation (Flowing, gas lift, etc.) 9/8/94 I Gas Lift Date of Test ~Hours Tested PRODUCTION FOR OIL-BBL ,~AS-MCF WATER-BBL CHOKE SIZE IGAS-OIL RATIO I rEST PERIOD Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. 24-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips, and presence ol oil, gas or water. Submit core chips. RECEIVED SEP 2 6 1994 Aiaska Oil & Gas Cons. Commission Anghom. ~,~ ., Submit in duplicate Form 10-407 Rev. 7-1-80 CONTINUED ON REVERSE SIDE 30. GEOL~ MARKERS FO, ,,,,{ATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. Subsea Shublik 9778' 8607' Sadlerochit 10041' 8698' 31. LIST OF ATTACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Sig ned T it I e Drillina Enoineer Suoervisor D ate 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, Submer,~i~l~,, iW~e~11~r~-~) jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". l_x\~sV,~ Oil & G~s Cons. commissio~ Form 10-407 ANNULAR INJECTION DATA ENTRY SCREEN A s s e t .WQA- ......................................... Rig Name ..................................................... Inj Well Name .~.~.~.(3 ......................................... Permit Sur Csg Dep .3..1.3[Z .............. Cumulative Data Legal Desc ....................................................................................................................... Research ........................................................................................................................ C~rz~ct...~l~Z..~ P~Lt~..~QGC.C.. ~:.;I.Z:,gZ .................... Start ....... ;[.L;t.I..9..4. ...... Permit E n d .....1.2 J.3..1./..9..~.. Daily Data S-40 08/19/94 173 173 Open 1994 SUMMARY S-40 08/1 9/94 550 550 S-40 08/20~94 372 372 S-40 08/24/94 116 116 ........ -- BP/AAI SHARED SERVICE DAILY OPERATIONS PAGE: 1 WELL: S-40 BOROUGH: NORTH SLOPE UNIT: PRUDHOE BAY FIELD: PRUDHOE BAY LEASE: API: 50- PERMIT: APPROVAL: ACCEPT: 08/06/94 06:00 SPUD: RELEASE: OPERATION: DRLG RIG: NABORS 18E WO/C RIG: NABORS 18E 08/05/94 (1) TD: 0'( 0) 08/06/94 (2) TD: 110' ( 110) 08/07/94 (3) TD: 1200' (1090) 08/08/94 ( 4) TD: 3150' (1950) 08/09/94 (5) TD: 3150'( 0) MOVE IN - RIG UP MW: 0.0 VIS: 0 CONTINUE WELDING ON FROG MODIFICATIONS, PAINTING OPS. STARTED MOVING PIPE SHED, AUXILLARY EQ. MOVE IN RIG UP ON S-40. MOVE SUB, MOTOR SHED, PITS, DERRICK. RIG UP FLOOR/UNBRIDLE MW: 8.4 VIS: 28 MOVE MOTOR SHED, BOILERS, DERRICK TO S-40. BRIDLE/PIN DERRICK AND READY TO RAISE. RAISE DERRICK. SPOT SUB ON S-40. SET MOTOR AND BOILER COMPLEXES. PIPE SHEDS, FUEL TANK. SET BERMS AND CUT EXCESS HERCULITE. TAKE ON FUEL. RIG UP FLOOR, UNBRIDLE. DRILLING MW: 8.9 VIS:350 RIG UP FLOOR AND UNBRIDLE, PICK UP KELLY, CHANGE OIL IN SWIVEL. ACCEPTED RIG @0600 HRS ON 08/06/94. MU 20" HYDRIL DIVERTER SYSTEM. FUNCTION TEST SAME. PU AND STRAP BHA, FILL CONDUCTOR, CIRC AND CHECK FOR LEAKS. CHANGE OUT STAB. SLEEVES, MOTOR DEGREES, ORIENT MOTOR AND MWD. SPUD WELL @1500 HRS ON 08/06/94. DRILLING F/ 110-397' UNPLUG FLOWLINE. DRILLING F/ 397-1104'. SHORT TRIP. HOLE STABLE. DRILLING F/ 1104-1200' POH F/ CSG MW: 9.5 VIS:100 DRILLING F/ 1200-2002'. CHANGE SWAB/LINER IN #2 PUMP #2 CYLINDER. DRILLING F/ 2002-2132' SHORT TRIP 11 STANDS, NO PROBLEMS. DRILLING F/ 2132-21~3'. CHANGE SWIVEL PACKING AND SERVICE RIG. DRILLING F/ 2183-3150' CBU. SHORT TRIP TO HWDP, SLM. NO CORRECTION, NO PROBLEMS. CBU 1.5 TIMES. PREP TO DROP SURVEY. PU BHA F/ 9 7/8" HOLE MW: 9.6 VIS: 57 DROP SURVEY. POOH, NO PROBLEMS. LD BHA. RU AND RUN 79 JTS 10 3/4" 45.5# NT80LHE BUTT CSG. PU HANGER AND LANDING JT, LAND SAME @3137'. RU BJ SERVICES, BREAK CIRCULATION, CIRC W/ RIG PUMP. COND MUD. CMT W/ BJ, TEST LINES, DROP BOTTOM PLUG, DROP TOP PLUG. DISPLACE W/ 10 H20 AND 284 BBL MUD. BUMPED PLUG. FLOATS HELD. RD CMT HEAD, DO TOP JOB, RIG DOWN BJ. BACK OUT LANDING JT, CLEAR FLOOR OF TOOLS, EQUIP. ND RISER AND 20" DIVERTER SUSTEM. MU S/S HEAD, NU BOPE, TEST HEAD. INSTALL TEST PLUG AND TEST BOPE/CHOKE MANIFOLD AND ANNULAR. TEST UPPER/LOWER KELLY AND PULL TEST PLUG. INSTALL WEAR RING, HOOK UP KILL LINE. PU BHA. RECEIVED SEP 1 6 1994 Ai~ska Oil & Gas Cons. Commission Anchorajb WELL : S-40 OPERATION: RIG : NABORS 18E PAGE: 2 08/10/94 ( 6) TD: 5304'(2154) 08/11/94 ( 7) TD: 6700'(1396) 08/12/94 ( 8) TD: 8112' (1412) 08/13/94 (9) TD: 8800' ( 688) 08/14/94 (10) TD: 9511' ( 711) 08/15/94 (11) TD: 9511' ( 0) DRILLING MW: 9.3 VIS: 42 RIH T/800'. CUT/SLIP DRLG LINE 105' RIH T/3017', P/U KELLY, TAG FC @ 3052'. TEST CSG. DRL FC @ 3052', CMT T/3137, FS, AND NEW HOLE TO 3160'. CBU, PERFORM LOT. DRLG F/3160-3244'. CHANG SWAB/LINER, PUMP #1 CYLINDER #3. DRLG F/3244-4014' SOME GAS CUT MUD TO 8.3 PPG. CBU. SHORT TRIP T/SHOE, NO PROBLEMS. DRLG F/4014-5028'. SHORT TRIP 11 STANDS. HOLE CLEAN. DRLG F/5028-5040'.BALLED UP BIT. PUMPED NUT PLUG. DRLG F/5040-5304'. DRILLING MW: 9.6 VIS: 44 DRILLING F/ 5304-6041'. MIX AND PUMP SLUG. POH. LD JARS, MWD, AND MOTOR. PU NEW BIT, MOTOR AND MWD. ORIENT TOOLS. PU JARS. SURFACE CHECK MWD AND MOTOR, RIH, CHECK MWD @3458'.. WASH AND REAM 70' TO BTTM. DRLG F/ 6041-6700' SHORT TRIP MW: 9.8 VIS: 43 DRLG F/ 6700-7071'. MADE 11 STAND SHORT TRIP. HOLE TIGHT AND SWABBING F/ 7050-6150'. DRLG F/ 7071-8112'. MADE 11 STAND SHORT TRIP. HOLE IN GOOD SHAPE. DRILLING MW:10.0 VIS: 44 DRLG F/ 8112-8522' CIRC BTTMS UP. DROP SURVEY, SLUG DP. POH W/ BIT #3. LD JARS AND MOTOR. SERVICE WEAR RING. PU MOTOR, BIT #4, ORIENT TOOLS, SURFACE CHECK. RIH, CHECK SHOT @3457'. HIT BRIDGE @8800'. PUMPED OUT ONE JT DP. WASHED AND REAMED TIGHT HOLE F/ 7970-8070' HOLE PACKING OFF. RIH W/ 5 STANDS. NO FILL. DRLG F/ ~522-8800'. TRIP DRLG F/ 8800-8993' DRLG F/ 8993-9057' DRLG F/ 9057-9511' POH W/ BIT #4. MW:10.0 VIS: 46 CHANGE VALVES AND SEATS IN #1 PUMP. WASHED OUT MUD LINE, WELD UP SAME. MOTOR STALLING. DROP SURVEY, SLUG DP. TRIP MW:10.1 VIS: 41 POH W/ BIT #4, SLM, NO CORRECTION. RAN 1 CONE OFF BIT. CLEAN OFF FLOOR. STRAP AND CALIPER FISHING TOOLS. PU 9 5/8" X 6 7/8" GLOBE BASKET AND REVERSE CIRC SUB. RIH SLOW, TIGHT F/ 8275-8300'. WASH AND REAM 36' TO BTM. DROP BALL, WASHED AND REAMED OVER CONE, CUT 3' CORE. PUMPED SLUG. POH. CHAINED OUT. NO RECOVERY. PU 9 1/2" OD CONCAVE JUNK MILL AND JUNK BASKET, RIH TO 9511'. MILL ON 9 7/8" CONE F/ 9511-9517'. SLUG DP. POH, CHAINED OUT, LD MILL AND JUNK BASKET. NO RECOVERY IN JUNK BASKET. MILL WAS SMOOTH ON BTM. DID NOT LOOK LIKE IT HAD RAN ON JUNK. PU BHA. ORIENT TOOLS. SURFACE CHECK. CUT DRLG LINE. RECEIVED SEP 1 6 1994 Alaska Oil & Gas Cons. Commission Anchor~j~ WELL : S-40 OPERATION: RIG : NABORS 18E PAGE: 3 08/16/94 (12) TD: 9890'( 379) 08/17/94 (13) TD: 9890' ( 0) 08/18/94 (14) TD: 9890' ( 0) 08/19/94 (15) TD: 9977' ( 87) 08/20/94 (16) TD:10215' ( 238) 08/21/94 (17) TD:10964' ( 749) DRLG MW:10.0 VIS: 40 RIH. FILL PIPE. CHECK SHOT MWD - NO FILL ON BTM. DRLG 9 7/8" HOLE F/9517'-9890'TD. NO MUD LOGS. CIRC FOR SHORT TRIP. RUNNING 7 5/8" CSG MW:10.0 VIS: 50 CIRC FOR SHORT TRIP. MADE 10 STD SHORT TRIP. HIT BRIDGE @ 9600' LD 5 JTS. WASHED AND REAMED F/9350-9890'. CIRC AND COND MUD AND HOLE. CIRC LOW/HI VIS SWEEP AROUND. MADE 10 STAND SHORT TRIP - NO PROBLEM - HOLE IN GOOD SHAPE. CIRC AND COND MUD AND HOLE. CIRC HI/LOW VIS SWEEP AROUND. POOH TO RUN 7 5/8" CSG LAYING DOWN 5" DP - BREAK KELLY - LD BHA. PULLED WEAR RING - SET TEST PLUG. CHANGED BTM RAMS TO 7 5/8". TEST DOOR SEALS TO 3000 PSI. RU CASERS. PRE-JOB SAFETY MEETING. RUN 7 5/8" CSG - 140 JTS IN HOLE @ 0600 HRS. CIRC'D PIPE VOLUME AT 10 3/4" SHOE. INSTALL WEAR RING MW: 9.6 VIS: 36 CONT RIH W/ 7 5/8" CSG. FILL PIPE @3137 & 6500'. CIRC AND COND MUD FOR CMT JOB. TEST LINES. PUMP 20 BBLS WATER, 50 BBLS SPACER, 251 BBLS LEAD "G" DMT, BTM PLUG, 60 BBLS TAIL "G" CMT, TOP PLUG, 10 BBLS WATER. DISP W/ MUD TO CALC STROKES. DID NOT BUMP PLUG. CHECK FLOATS. INSTALL 10 3/4 X 7 5/8" PACKOFF. TEST. LD RUNNING TOOL. CHANGE BOTTOM RAMS AND TOP RAMS. INSTALL TEST PLUGG. BEGIN TEST BOPE. SWAP 5" KELLY TO 3 1/2" KELLY. CONT BOPE TEST. HYDRIL ELEMENT FAILED. TESTED KELLY COCK. ND RISER FLOWLINE AND CHANGE HYDRIL ELEMENT. TEST HYDRIL. INSTALL WEAR RING. STRAP BHA. DRILLING MW: 9.4 VIS: 34 STRAP AND PU BHA. ORIENT MTR W/ MWD. PU 3 1/2" DP. RIH TO 8582'. DRLG CMT F/ 9582-9625' TEST CSG. DRLG CMT F/ 9625-9739'. CIRC OUT CMT CONTAIM~NATED MUD. DRLG F/ 9739-9797', FLOAT COLLAR, CMT TO 9868'. TEST CSG. DRLG CMT F/ 9868-9890'. DRLG AND SLIDING F/ 9890-9977'. POOH - SLM MW: 9.0 VIS: 65 DRLG F/9967 T/10000. PUMP 100 BBLS DIRT MAGNET, 100 BBLS 3 PPB XANVIS PILL. DSPLCE WELL T/FLO-PRO MUD. DRLG F/10000 T/ 10215. SHORT TRIP T/SHOE. NO PROBLEMS. CBU. PUMP DRY JOB. POOH - SLM. ADDED LUBE TEX T/IMPROVE SLIDE ABILITY. DRILLING MW: 9.0 VIS: 62 CHANGE BIT PU STAB. RIH FILLING EVERY 30 STNDS. TIGHTEN & ADJUST DRILL PIPE RUBBERS. DRLG F/10215 T/10964. RECEIVED SEP 1 6 1994 Oil & Gas Cons. Commission Anchora~ WELL : S-40 OPERATION: RIG : NABORS 18E PAGE: 4 08/22/94 (18) TD:11366' ( 402) 08/23/94 (19) TD:11366' ( 0) 08/24/94 (20) TD:11366' ( 0) 08/25/94 (21) TD:11366' ( 0) CBU MW: 9.1 VIS: 71 DRLG F/10840 T/11049. SHORT TRIP T/SHOE @9897. OK. DRLG T/11128. CBU PUMP DRY JOB. POOH SERV. WEAR RING. CHANGE MOTOR & BIT. SERV. MWD & ORIENT. RIH FILLING PIPE TIGHTEN DP RUBBERST/30 FP. DRLG T/1148. DRLG T/11366. SHORT TRIP T/SHOE. CBU *& PUMP SWEEP. MIX DRY JOB. POOH F/LINER MW: 9.1 VIS: 72 CBU PUMP SWEEP MIX DRY JOB. POOH W/S LM LAYING DN DP 43 JTS FOR HOLE OPENING RUN. POOH W/SLM NO CORRECTION. L/D BHA STRAP NEW BHA P/U SAME. RIH T/9890. WASH & REAMING F/9890 T/11022 NO PROBLEMS. WASH & REAMING F/11022 T/11366 NO PROBLEMS. CBU PUMPING SWEEP MIX DRY JOB. POOH LD DP F/LINER JOB NO PROBLEMS. POOH LD DP F/LINER MW: 9.1 VIS: 78 POOH LD DOP F/LINER. RU CSG TOOLS & P/U RIH W/CHROME LINER. P/U 21/16" HYDRIL CS TUBING W/TIW POLISHED NIPPLE INSIDE LINER. RIW/3 1/2" DP CIRC LINER. UP & DN WEIGHT 45. CIRC OPEN HOLE VOLUME. DROP BALL & PUMP DN SAME SET BALL PRESSURE UP TO 3500 SET LINER TOP PACKER STAGE. PRESSURE UP ANNULUS TO 3500 F/30 MINUTES OK. CIRC OPEN HOLE VOLUME 100 BBLS VISCOSIFIED BRINE & DISPLACE. ANNULUS 2/8.5 SEA WATER. INFLATING PAYZONE PACKER MW: 8.5 VIS: 28 DISPLACE W/8.5 PPG SEA WATER. SPOT ONE LINER VOLUME SA WATER W/4 PPB LITHIUM HYPOCHLORITE INSIDE 4 1/2" LINER. BTM OF 2 1/16" @ 9700' DISPLACE ANNULUS W/CLEAN SEA WATER UNTIL RETURNS WERE CLE~N. PUMPED 2 ANNULAR VOLUMES. POOH - CHAIN OUT - LD SETTING TOOL AND 2 1/16" TBG. PU CTC - H.I.T. TOOL, 40 JTS 2 7/8" PH6 TBG, AND SRIH W/3 1/2" DP. CUT DRLG LINE AND SERVICE DRAWORKS. FINISH RIH W/ CTC - H.I.T. TOOL TO 10966' HOWCO TESTED LINES TO 3500 PSI. PRESS TO 1000 SPI TO ARM DOGS. SET TOOL IN PROFILE @ 10951' AND TEST PKRS TO 1000 PSI HELD. SHEARED OUT BALL AND SEAT W/1800 PSI. CIRC 1 HR @ 3 BPM. SPOT H.I.T. TOOL @ 10915'. PUMPE D2 BBLS PREFLUSH, DART, 3 BBLS CLASS "G" W/ ADDITIVES @ 15.8 PPG, SPONGE, AND 2 BBLS SPACER. DISPLACED CMT W/69 1/4 BBLS FW. BUMPED PLUG TO 1000 PSI. LOCATED AND INFLATED CTC PACKERS @ 10915' AND 10462' MOVING TOOL UP HOLE TO INFLATE PACKER #3 @ 10078' @ 6600. INJECTED 175 BBLS SEA WATER DOWN 10 3/4 X 7 5/8 ANNULUS @ 3 BPM 750 PSI TOTAL 2 761 BBLS. RECEIVED SEP 1 6 1994 Alaska Oil & Gas Cons. Commission Anchora~ WELL : S-40 OPERATION: RIG : NABORS 18E PAGE: 5 08/26/94 (22) TD:11366' ( 0) 08/27/94 (23) TD:11366 PB: 8786 08/28/94 (24) TD:11366 PB: 8786 SPOT BLEACH IN 4.5" LINER MW: 8.5 VIS: 0 UNABLE T/INFLATE CTC PKR @10078. PU & SHEAR REV. CIRC SUB REV. OUT CMT. POOH LD 28 JT 2-7/8" TBG & CTC INFLATION TOOL. PU NEW TOOL, 12 JTS TBG & RIH W/3.5" DP. TEST LINES T/3500. PRESS UP T/1000 T/ARM DOGS. TEST SEALS T/500. SHEAR OUT BALL & SEAT @ 1800PSI. CIRC. DROP DART. PUMP 3 BBLS SLURRY 15.8PPG & DISPLACE W/66 BBLS FW. BUMPED PLUG T/1000 PSI. LAND IN PROFILE @ 10078. INFLATE CTC PKR W/700 & .65 BBLS SLURRY. PU & SET IN REV. PROFILE @10044'. SHEARED REV. CIRC SUB @ 3200 & REV OUT DP. POOH LAND TBG & CTC INFLATION TOOL. PU 3.75" MILL/2 -7/8" MOTOR/6) 3-1/8" DC'S/49 JTS 2-7?8" DP & RIH W/3.5 DP. TAG UP @10043. CLEAN OUT CMT STRINGERS F/10430 T/10161. RIH TAG UP @10394. CLEAN OUT CMT STRINGERS F/10394 T/10410. RIH T/11341. PBTD. PUMP HIGH VIS SWEEP & CBU. PREPAIR T/SPOT LITHUIUM HYPOCHLORITE INSIDE 4.5" LINER. RU TO CIRC WELL MW: 8.4 Seawater CIRC HI-VIS SWEEP AROUND. SPOTTED 30 BBLS SEAWATER W/ 4 PPB LITHIUM HYPOCHLORITE IN 4 1/2" LINER. POH. LD 3 1/2" AND 2 7/8" DP AND BHA. BREAK KELLY. PULLED WEAR RING. RU RO RUN 4 1/2" TBG. RAN TAIL PIPE ASSY W/ "XC" NIPPLE 7 5/8" BKER SBL-3 PKR "X" NIPPLE, 6 - OTIS GLM'S AND 180 JTS 4 1/2" 12.6# L-80 BUTT MOD TBG. PU OTIS BALL VALVE AND RU CONTROL LINES. TEST. RIH W/ 4 1/2" TBG HOLDING PRESS ON CONTROL LINES. PU HANGER AND LANDING JT. RUN CONTROL LINES THRU HANGER AND TEST. LANDED TBG W/ 85K ON HANGER. RUN IN LOCK DOWN SCREWS AND RU TO DISPLACE WELL W/ TREATED SEAWATER PKR @9599' RELEASED RIG MW: 8.4 Seawater RU TO REVERSE CIRC. DISPLACE HOLE W/ 450 BBLS SEA WATER TREATED 25 GAL/100 BBLS CORREXIT 7726. DROPPED 1 7/8" BALL, SET BAKER 7 5/8" PACKER @9599'. TEST ANNULUS AND PACKER. BACKED OUT LANDING JOINT AND SET TWC IN HANGER. CHANGE UPPER RAMS ATO 5 1/2" ND BOPS. RUN CONTROL LINES THRU TBG HEAD. TEST. NU TBG HEAD ADAPTER AND TREE. TEST TBG HEAD ADAPTER AND TBG HANGER. TEST TREE. RU LUBRICATOR AND PULLED TWC. PRESSURE TBG. TEST PKR AND 7 5/8" CSG. BLED OFF TBG PRESSURE AND SHEARED RP SHEAR VALVE. FREEEZE PROTECT TBG AND 7 5/8" CSG. PUMPED 84 BBLS DIESEL AND LET THEM EQUIILIZE. FREEZE PROTECTED 10 3/4" X 7 5/8" ANNULUS W/ 50 BBLS DIESEL ANNULAR INJECT EXCESS FLUIDS. RD CIRC EQUIPMENT. INSTALLED CAMERON "H" BPV, CLEAN PITS, PUMPE OUT CELLAR. RELESED RIG @2300 HRS ON 08/27/94. SIGNATURE: (drilling superintendent) DATE: RECEIVED S£P 16 ]994 Alaska (,.iii & Gas Cons. Commission Anchora.~j~ Baker Hughes INTEQ MWD Surveys 0.00' 11,366.00' Comments Insufficient Monel spacing was run in the 6 3/4" hole according to INTEQ Magcap calculations. However, Magcorr # 1 was utilized tO'correct the interval 9,885' to 10,196' for z-axis interference. Beyond this point, error introduced by the correction algorithm was greater than the error of magnetic interference. Thus, uncorrected azimuths were used. Total Magnetic Field (transmitted) sensed when compared with expected Total Magnetic Field (BGS model) did not indicate excessive interference. k~as~ Oi~ & 6as Cons. commission Anchorage; BP EXPLORATION (Alaska) Inc. Pad S 4O slot #40 Prudhoe Bay North Slope, Alaska SURVEY LISTING by Baker Hughes INTEQ Your ref : PMSS <0-11366'> Our ref : sw/4471 License : Date printed : 24-Aug-94 Date created : 12-Aug-94 Last revised : 24-Aug-94 Field is centred on 708179.340,5930615.440,999.00000,N Structure is centred on nTO 21 29.028,w149 2 25.784 Slot location is nTO 21 7.024,w149 2 4.878 Slot Grid coordinates are N 5979245.054, E 618885.027 Slot local coordinates are 2237.31S 715.30 E Reference North is True North BP EXPLORATION (Alaska) Inc. Pad S,40 Prudhoe Bay,North Slope, Alaska Measured Inclin. Azimuth True Vert. Depth Degrees Degrees Depth 0.00 0.00 0.00 0.00 102.00 0.10 309.40 102.00 199.00 0.00 259.90 199.00 291.00 0.10 70.00 291.00 383.00 0.20 147.00 383.00 SURVEY LISTING Page 1 Your ref : PMSS <0-11366'> Last revised : 24-Aug-94 R E C T A N G U L A R Dogleg Vert C 0 0 R D I N A T E S Deg/lOOFt Sect 0.00 N 0.00 E 0.00 0.00 0.06 N 0.07 14 0.10 -0.08 0.11 N 0.13 14 0.10 -0.15 0.14 N 0.06 14 0.11 -0.15 0.03 N 0.10 E 0.22 0.00 476.00 0.40 149.10 476.00 568.00 0.30 147.00 568.00 661.00 0.20 166.40 661.00 753.00 0.30 134.70 752.99 845.00 0.40 162.50 844.99 937.00 0.30 164.60 936.99 1029.00 0.20 172.00 1028.99 1123.00 0.40 170.20 1122.99 1215.00 0.40 183.20 1214.99 1308.00 0.41 162.80 1307.98 1402.00 0.50 126.60 1401.98 1496.00 0.50 127.70 1495.98 1588.00 0.90 112.90 1587.97 1679.00 0.90 116.10 1678.96 1772.00 0.80 111.20 1771.95 1866.00 1.90 125.90 1865.92 1957.00 3.80 127.00 1956.80 2048.00 6.20 126.60 2047.45 2140.00 8.10 127.70 2138.73 2233.00 10.40 122.80 2230.52 2325.00 12.70 126.60 2320.65 2417.00 14.60 130.10 2410.05 2511.00 17.00 131.20 2500.49 2604.00 19.40 132.30 2588.83 2697.00 22.00 129.10 2675.82 2789.00 24.80 129.80 2760.25 2883.00 25.80 129.10 2845.23 2975.00 28.30 131.60 2927.16 3075.00 30.80 131.90 3014.15 3187.00 30.50 130.10 3110.51 0.38 S 0.36 E 0.22 0.48 0.86 S 0.66 E 0.11 1.02 1.22 S 0.83 E 0.14 1.42 1.55 S 1.04 E 0.18 1.79 2.02 S 1.30 E 0.21 2.33 2.56 S 1.46 E 0.11 2.89 2.95 S 1.55 E 0.11 3.29 3.44 S 1.63 E 0.21 3.78 4.08 S 1.66 E 0.10 4.39 4.72 S 1.74 E 0.15 5.03 5.28 S 2.17 E 0.31 5.70 5.78 S 2.83 E 0.01 6.37 6.31 S 3.81 E 0.47 7.18 6.90 S 5.11 E 0.06 8.15 7.46 S 6.37 E 0.13 9.07 8.61 S 8.25 E 1.22 10.74 11.31 S 11.88 E 2.09 14.44 16.05 S 18.23 E 2.64 20.92 22.98 S 27.35 E 2.07 30.34 31.53 S 39.59 E 2.61 42.28 42.06 S 54.69 E 2.63 56.99 55.56 S 71.68 E 2.25 75.10 72.25 S 91.09 E 2.57 96.99 91.60 S 112.74 E 2.61 122.12 112.98 S 137.69 E 3.05 150.20 136.21 S 165.89 E 3.06 181.05 161.73 S 196.91 E 1.11 214.95 188.84 S 228.76 E 2.98 250.62 221.68 S 265.55 E 2.50 293.28 259.14 S 308.64 E 0.86 342.28 3279.00 30.50 130.50 3189.78 3372.00 30.40 130.90 3269.95 3465.00 30.20 129.80 3350.24 3556.00 30.20 130.50 3428.90 3649.00 30.10 130.90 3509.31 3742.00 30.00 130.10 3589.81 3834.00 29.40 131.20 3669.73 3926.00 28.90 131.90 3750.08 4018.00 29.90 134.40 3830.23 4111.00 32.00 136.50 3909.98 4203.00 30.50 135.40 3988.64 4296.00 29.80 135.10 4069.05 4388.00 29.30 133.70 4149.09 4479.00 29.00 134.40 4228.56 4571.00 28.80 134.40 4309.10 289.34 S 344.25 E 0.22 382.06 320.07 S 379.98 E 0.24 422.38 350.45 S 415.74 E 0.63 462.37 379.97 S 450.72 E 0.39 501.30 410.43 S 486.14 E 0.24 541.27 440.67 S 521.55 E 0.44 581.02 470.36 S 556.13 E 0.88 620.00 500.08 S 589.67 E 0.66 658.68 530.98 S 622.60 E 1.72 698.28 565.07 S 656.13 E 2.54 741.11 599.38 S 689.30 E 1.74 784.03 632.55 S 722.19 E 0.77 825.79 664.30 S 754.60 E 0.93 866.04 695.12 S 786.46 E 0.50 905.24 726.23 S 818.23 E 0.22 944.69 All data is in feet unless otherwise stated Coordinates from slot #40 and TVD from RKB (68.10 Ft above mean sea level). Vertical section is from wellhead on azimuth 161.88 degrees. Declination is 0.00 degrees, Convergence is 0.90 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ BP EXPLORATION (Alaska) Inc. Pad S,40 Prudhoe Bay,North S[ope, Ataska Measured Depth 4663.00 4753.00 4848.00 4940.00 5031.00 SURVEY LISTING Page 2 Your ref : PMSS <0-11366'> Last revised : 24-Aug-94 Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Degrees Degrees Depth C 0 0 R D I N A T E S Deg/lOOFt Sect 5124.00 5216.00 5307.00 5400.00 5492.00 28.70 134.70 4389.76 757.27 S 849.76 E 0.19 984.00 28.90 132.60 4468.63 787.19 S 881.13 E 1.14 1022.19 29.30 131.60 4551.64 818.16 S 915.41 E 0.66 1062.29 29.40 130.90 4631.83 847.89 S 949.32 E 0.39 1101.09 30.50 131.90 4710.68 877.94 S 983.39 E 1.33 1140.24 5584.00 5676.00 5768.00 5860.00 5953.00 31.80 132.60 4790.27 910.29 S 1018.99 E 1.45 1182.06 31.90 133.30 4868.42 943.37 S 1054.53 E 0.42 1224.55 31.50 131.90 4945.84 975.74 S 1089.72 E 0.92 1266.26 31.40 131.20 5025.18 1007.92 S 1126.03 E 0.41 1308.14 30.60 129.40 5104.04 1038.57 S 1162.16 E 1.33 1348.51 6044.00 6136.00 6229.00 6323.00 6415.00 30.50 128.40 5183.27 1067.94 S 1198.55 E 0.56 1387.73 30.20 129.40 5262.66 1097.12 S 1234.73 E 0.64 1426.73 30.20 128.40 5342.18 1126.18 S 1270.74 E 0.55 1465.55 30.10 129.80 5421.73 1155.32 S 1306.60 E 0.77 1504.39 29.80 129.80 5502.31 1185.04 S 1342.27 E 0.32 1543.73 6510.00 6604.00 6699.00 6795.00 6888.00 29.80 130.10 5581.28 1214.08 S 1376.94 E 0.16 1582.12 30.00 129.40 5661.03 1243.41 S 1412.20 E 0.44 1620.95 29.90 128.40 5741.62 1272.56 S 1448.34 E 0.55 1659.90 29.60 128.70 5823.23 1301.63 S 1484.82 E 0.36 1698.87 29.70 128.00 5903.18 1329.87 S 1520.51 E 0.39 1736.81 6981.00 7075.00 7170.00 7264.00 7357.00 29.70 127.30 5985.70 1358.62 S 1557.77 E 0.36 1775.72 29.40 127.30 6067.47 1386.71 S 1594.65 E 0.32 1813.89 29.60 127.30 6150.16 1415.06 S 1631.86 E 0.21 1852.41 30.50 127.00 6233.25 1444.09 S 1670.18 E 0.95 1891.91 30.60 127.00 6313.34 1472.54 S 1707.93 E 0.11 1930.69 7452.00 7545.00 7641.00 7736.00 7831.00 31.80 127.70 6392.89 1501.77 S 1746.22 E 1.35 1970.38 32.00 128.40 6472.69 1532.39 S 1785.34 E 0.45 2011.65 32.00 127.70 6553.26 1563.42 S 1824.98 E 0.39 2053.46 31.70 128.70 6633.11 1594.09 S 1863.96 E 0.64 2094.74 31.70 127.70 6712.23 1624.31 S 1902.37 E 0.56 2135.40 7926.00 8022.00 8117.00 8212.00 8306.00 31.40 128.70 6793.19 1655.04 S 1941.43 E 0.63 2176.77 32.00 130.10 6872.32 1686.06 S 1979.19 E 1.02 2217.99 33.40 131.60 6953.10 1719.99 S 2018.41 E 1.68 2262.44 33.70 132.30 7032.27 1755.09 S 2057.45 E 0.52 2307.94 34.60 133.50 7110.89 1791.40 S 2096.51 E 1.18 2354.59 8400.00 8493.00 8588.00 8684.00 8778.00 34.60 133.70 7189.09 1828.60 S 2135.58 E 0.12 2402.10 34.80 133.30 7268.02 1866.22 S 2175.22 E 0.32 2450.18 34.20 133.70 7346.31 1903.26 S 2214.25 E 0.68 2497.52 33.70 133.00 7425.11 1939.68 S 2252.83 E 0.67 2544.13 34.80 133.00 7502.81 1975.76 S 2291.52 E 1.17 2590.45 8873.00 8969.00 9063.00 9158.00 9253.00 34.90 133.30 7579.95 2012.49 S 2330.71 E 0.21 2637.56 33.40 134.40 7656.92 2048.65 S 2368.36 E 1.74 2683.63 32.30 133.30 7736.72 2084.35 S 2405.52 E 1.32 2729.12 31.30 132.30 7818.31 2118.73 S 2442.63 E 1.18 2773.33 30.80 130.50 7898.85 2150.79 S 2478.99 E 1.12 2815.11 31.70 129.80 7980.06 2182.56 S 2516.66 E 1.02 2857.03 32.00 129.80 8061.61 2214.99 S 2555.58 E 0.31 2899.95 29.00 128.40 8142.59 2245.10 S 2592.58 E 3.28 2940.07 29.00 129.10 8225.68 2273.92 S 2628.50 E 0.36 2978.64 29.60 129.80 8308.53 2303.46 S 2664.40 E 0.73 3017.88 All data is in feet un[ess otherwise stated Coordinates from slot #40 and TVD from RKB (68.10 Ft above mean sea level). Vertical section is from wellhead on azimuth 161.88 degrees. Declination is 0.00 degrees, Convergence is 0.90 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ BP EXPLORATION (Alaska) Inc. Pad S,40 Prudhoe Bay, North Slope, Alaska SURVEY LISTING Page 3 Your ref : PMSS <0-11366'> Last revised : 24-Aug-94 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C 0 0 R D I N A T E S Deg/lOOFt Sect 9348.00 33.70 139.60 8389.44 2338.59 S 2699.54 E 6.91 3062.20 9474.00 42.40 148.10 8488.63 2401.44 S 2744.77 E 8.05 3135.99 9505.00 43.90 149.80 8511.25 2419.61 S 2755.70 E 6.12 3156.66 9537.00 44.60 151.60 8534.17 2439.08 S 2766.62 E 4.49 3178.56 9568.00 46.80 154.40 8555.82 2458.84 S 2776.68 E 9.60 3200.48 9600.00 50.00 156.50 8577.07 2480.61 S 2786.61 E 11.14 3224.25 9631.00 53.00 157.90 8596.36 2502.98 S 2796.01 E 10.30 3248.43 9663.00 55.00 159.00 8615.17 2527.05 S 2805.51 E 6.84 32?4.2? 9695.00 56.70 160.40 8633.14 2551.89 S 2814.70 E 6.43 3300.73 9726.00 58.60 157.90 8649.?2 2576.36 S 2824.02 E 9.16 3326.88 9758.00 61.30 160.70 8665.75 2602.26 S 2833.80 E 11.34 3354.55 9788.00 62.70 159.30 86?9.83 2627.15 S 2842.86 E 6.22 3381.02 9820.00 64.30 159.00 8694.11 2653.92 S 2853.06 E 5.07 3409.62 9855.00 66.90 159.00 8708.57 2683.67 S 2864.48 E 7.43 3441.46 9885.00 68.10 159.10 8720.05 2709.55 S 2874.39 E 4.01 3469.14 9916.00 70.40 157.40 8731.03 2736.47 S 2885.13 E 9.02 3498.06 9944.00 72.20 157.50 8740.01 2760.97 S 2895.30 E 6.44 3524.51 9980.00 73.70 157.30 8750.56 2792.74 S 2908.53 E 4.20 3558.82 10010.00 75.30 157.30 8758.58 2819.41 S 2919.68 E 5.33 3587.63 10042.00 77.30 157.60 8766.16 2848.12 S 2931.60 E 6.32 3618.63 10074.00 80.10 157.40 8772.43 2877.11 S 2943.61 E 8.77 3649.91 10104.00 83.50 157.60 8776.71 2904.54 S 2954.97 E 11.35 3679.52 10135.00 85.80 157.70 8779.60 2933.08 S 2966.71 E 7.43 3710.29 10166.00 88.00 159.90 8781.27 2961.94 S 2977.90 E 10.03 3741.20 10196.00 89.40 158.10 8781.95 2989.94 S 2988.65 E 7.60 3771.15 10227.00 90.00 160.00 8782.12 3018.89 S 2999.73 E 6.43 3802.11 10258.00 90.00 158.00 8782.12 3047.83 S 3010.84 E 6.45 3833.07 10289.00 89.80 158.50 8782.17 3076.62 S 3022.33 E 1.74 3864.01 10320.00 89.60 158.00 8782.33 3105.41 S 3033.82 E 1.74 3894.95 10351.00 89.40 161.00 8782.60 3134.44 S 3044.6? E 9.70 3925.92 10382.00 89.50 160.00 8782.90 3163.66 S 3055.02 E 3.24 3956.90 10413.00 89.50 160.00 8783.17 3192.79 S 3065.62 E 0.00 3987.89 10444.00 89.20 158.50 8783.52 3221.78 S 30?6.60 E 4.93 4018.85 10475.00 89.20 159.80 8783.96 3250.75 S 3087.63 E 4.19 4049.81 10505.00 89.10 159.40 8784.40 3278.86 S 3098.09 E 1.37 4079.79 10535.00 89.20 161.00 8784.85 3307.08 S 3108.25 E 5.34 4109.77 10567.00 89.20 160.30 8785.29 3337.27 S 3118.85 E 2.19 4141.76 10599.00 90.70 161.60 8785.32 3367.52 S 3129.30 E 6.20 4173.75 10630.00 90.90 160.50 8784.89 3396.84 S 3139.36 E 3.61 4204.74 10661.00 90.90 160.00 8784.40 3426.01 S 3149.84 E 1.61 4235.73 10692.00 90.80 159.50 8783.94 3455.09 S 3160.56 E 1.64 4266.70 10723.00 90.70 159.20 8783.54 3484.10 S 3171.50 £ 1.02 4297.6? 10754.00 90.60 161.20 8783.18 3513.26 S 3182.00 E 6.46 4328.65 10777.00 90.50 161.00 8782.96 3535.02 S 3189.45 E 0.97 4351.65 10815.00 90.40 162.40 8782.66 3571.09 S 3201.38 E 3.69 4389.65 10847.00 90.40 159.30 8782.44 3601.32 S 3211.87 E 9.69 4421.64 10879.00 90.00 162.10 8782.33 3631.52 S 3222.45 E 8.84 4453.63 10909.00 90.00 160.90 8782.33 3659.97 S 3231.97 E 4.00 4483.63 10940.00 89.50 160.80 8782.46 3689.25 S 3242.14 E 1.64 4514.62 10971.00 89.60 161.30 8782.71 3718.57 S 3252.20 E 1.64 4545.62 All data is in feet unless otherwise stated Coordinates from slot #40 and TVD from RK8 (68.10 Ft above mean sea level). Vertical section is from wellhead on azimuth 161.88 degrees. Declination is 0.00 degrees, Convergence is 0.90 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ BP EXPLORAT[ON (ALaska) Inc. Pad S,40 Prudhoe Bay, North SLope, Alaska SURVEY LISTING Page 4 Your ref : PMSS <0-11366'> Last revised : 24-Aug-94 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R DogLeg Vert Depth Degrees Degrees Depth C 0 0 R D I N A T E S Deg/lOOFt Sect 11001.00 89.40 159.50 8782.97 3746.83 S 3262.27 E 6.04 4575.60 11033.00 89.30 161.40 8783.33 3776.98 S 3272.97 E 5.94 4607.59 11063.00 89.30 159.80 8783.70 3805.28 S 3282.94 E 5.33 4637.58 11094.00 89.30 159.60 8?84.08 3834.35 S 3293.69 E 0.64 4668.56 11125.00 89.40 160.00 8?84.43 3863.44 S 3304.39 E 1.33 4699.53 11155.00 89.30 160.10 8784.77 3891.64 S 3314.63 E 0.47 4729.52 11186.00 89.40 160.00 8785.12 3920.77 S 3325.21 E 0.46 4760.50 11217.00 89.30 158.40 8?85.47 3949.75 S 3336.21 E 5.17 4791.46 11248.00 89.40 158.40 8?85.82 3978.57 S 3347.62 E 0.32 4822.40 11279.00 89.50 157.90 8786.12 4007.34 S 3359.16 E 1.64 4853.34 11309.00 89.60 158.40 8786.36 4035.19 S 3370.33 E 1.?0 4883.27 113~.00 89.68 158.40 8?86.72 4088.18 S 3391.31E 0.14 4940.16 Projected Data - No Survey ALl data is in feet un[ess otherwise stated Coordinates from slot ~A40 and TVD from RKB (68.10 Ft above mean sea [eve[). Vertical section is from wellhead on azimuth 161.88 degrees. DecLination is 0.00 degrees, Convergence is 0.90 degrees. CalcuLation uses the minimum curvature method. Presented by Baker Hughes INTEQ BP EXPLORATION (Alaska) Inc. SURVEY LISTING Page 5 Pad S,40 Your ref : PHSS <0-11366'> Prudhoe Bay, North Slope, Alaska Last revised : 24-Aug-94 Co~nts in wet[path MD TVD Rectangular Coords. Co~m~nt 11366.00 8786.72 4088.18 S 3391.31E Projected Data - No Survey All data is in feet unless otherwise stated Coordinates from slot ~40 and TVD from RKB (68.10 Ft above mean sea [eve[). Bottom hole distance is 5311.71 on azimuth 140.32 degrees from wellhead. Vertical section is from wellhead on azimuth 161.88 degrees. Declination is 0.00 degrees, Convergence is 0.90 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ 4710 Business Park Blvd., Ste. 14 Anchorage, AK 99503-7100 907-561-1951 Fax: 907-561-1358 State of Alaska Alaska Oil & Gas Conservation Comm. 3001 Porcupine Drive Anchorage, Alaska 99501 ~ Attn: Larry Grant ~ Well Reference Data: ~'/ Well No: S-40 Field: Prudhoe Bay Unit County:North Slope Borough State:Alaska Date: Sept. 09, 1994 API No: 5002922494 BHI Job #:1375 Enclosed is the following data as listed below: Log Ty~e Navigamma Log T~e Navigamma 2" + 5" Measured Depth Logs Bluelines Folded Sepias Rolled Sepias Mylar Film 2" + 5" Subsea True Vertical Depth Logs SEp 12 Mylar %a~m Bluelines Folded Sepias Rolled Se~ 0il &.GAS CONS. C°rn~isslon /~nchorage i i 0 o I LIS Tape I LIS Verification Listing Upon Receipt, Please sign and fax to: Baker Hughes INTEQ Faxg: 561-1358 Attn: Raquel Rodriguez Received by: Date: MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: David Joh~'n, Chairm~-/ DATE: Aug. 18, 1994 THRU: Blair Wondzell, FILE NO: P. I..Supervisor~ FROM: John Spaulding~) SUBJECT: Petroleum Insper._.4or AINLHQBD.doc BOPE Test Nabors 18E. BPX I Well S-40 Prudhoe Oil Pool P.T.D. 94-96 Wednesday Au.q. 17, 1994: I travelled to BPX PBU Well S-40 to witness the BOPE test on Nabors 18E. As noted in the attached AOGCC test report 1 failure was observed on the annular preventer. Nabors tool pusher Brian Busby was given 24 hours to repair the annular preventer. The failure was repaired and retested within 12 hours. All other systems tested well and the rig appeared to be in good working order. The area around the rig was quite clean and all access areas were kept open. Summary: ! witnessed the BOPE test on Nabors 18E, 1 failure, 3.5 hours. Attachment: AINLHQBD STATE OF ALASKA OIL AND GAS CONSERVATION COMMISSION BOPE Test Report OPERATION: Drlg: X Workover: Drlg Contractor: Nabors Rig No. Operator: BPX Well Name: S-40 Casing Size: 10 3/4" Set @ 3135' Test: Initial Weekly x Other 18E PTD # 94-96 Rep.: Rig Rep.: Location: Sec. 35 T. DATE: Aug. 17, 1994 Rig Ph.# 659-4608 Bdan Busby ,Mike Dow.n..ey 12N R. 12E Meridian uMIAT '''[']i[[[i [''' : .... i i ................................................................... [[{ .................. ~ ......... ii ............ [::[ .......... ............. j i MISC. INSPECTIONS: Location Gen.: OK Housekeeping: 'OK (Gen) Reserve Pit 'N/A Well Sign OK Drl. Rig OK BOP STACK: Quan. Annular Preventer 1 Pipe Rams Pipe Rams Blind Rams Choke Ln. Valves 1 HCR Valves 2 Kill Line Valves 1 Check Valve Test Pressure 0 I 250/5000 1 250/5000 I 250/5000 P 250/5000 P 250/5000 P 250/5000 P FLOOR SAFETY VALVES: Upper Kelly / IBOP Lower Kelly / IBOP Ball Type Inside BOP Test Quan. Pressure P/F I 250 / 5000 P I 250/5000 P 1 250/5000 P 1 250/5000 P P/F F CHOKE MANIFOLD: P No. Valves 141 P No. Flanges 32 I Manual Chokes 2 I Hydraulic Chokes 1 Test Pressure P/F 250 / 5000 P 250/5000 P P Functioned Functioned ACCUMULATOR SYSTEM: N/A N/A N/A System Pressure 3050 I P Pressure After Closure 1400 I P MUD SYSTEM: V'~ual Alarm 200 psi Attained After Closure minutes 54 sec. Trip Tank ok ok System Pressure Attained 2 minutes 31 sec. Pit Level Indicators ok ok Blind Switch Covers: Master: X Remote: X Flow Indicator ok ok Nitgn. Btl's: 8 avg. ~ 21250 Methane Gas Det. ok ok Psig. H2S Detectors ok ok Number of Failures 1 Test Time 4 Hours Number of valves tested 22 Repair or Replacement of Failed Equipment will be made within 1 days. Notify the Inspector and follow with Written or Faxed verification to the AOGCC Commission Office at: Fax No. 276-7S42 Inspector North Slope Pager No. 659-3607 or 3687 If your call is not returned by the inspector within 12 hours please contact the P. I. Supervisor at 279-1433 REMARKS: Annular Preventer failed and will be repaired within 24 hrs., excellent test!! Distribution: orig-Well File c - Oper./Rig c- Database c - Trip Rpt File c- Inspector STATE WITNESS REQUIRED? YES X NO 24 HOUR NOTICE GIVEN YES X NO Waived By: W'[tnessed By: FI-021L (Rev. 2/93) AINLHQBD.XLS MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: THRU: David Jo13~, Chairman-'"' Blair Wondzell, P. I. Supervisor DATE: August 6, 1994 FILE NO: EFNJHFBD.DOC FROM: Lou Grimaldi, SUBJECT: Petroleum Inspector Diverter inspection Nabors rig # 18-E BPX well # S-40 Prudhoe Bay Field PTD # 94-96 Saturday, Auqust 6, 1994: I witnessed the Diverter function test on Nabors rig #18-E, drilling BP× well # S-40 in the Prudhoe Bay Field. The function test went well after cycling the annular preventer which at first acted as if there was some dry mud impeding its closure. After cycling the bag two times this seemed to clear up. The 10 inch vent line was bifurcated outside the rig with a set of 10 inch knife valves which were joined in a fashion as to prevent both lines from being closed at the same time. I found the layout of the lines to be sound and sturdy. SUMMARY: I witnessed the Diverter function test on Nabors rig #18-E. Attachments: EFNJHFBD.XLS __-._p. cc: Sam Lynch (Prudhoe Bay Drilling) Drlg Contractor: Operator: Well Name: Location: Sec. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION Diverter Systems Inspection Report Nabors BPX S-40 35 T. 12N R. Date: Operation: Development X Exploratory: Rig No. 18-E PTD # Rig Ph. # Oper. Rep.: Dave Bumgarner Rig Rep.: Don Dubois 12E Merdian Umiat 8/6/94 659-4615 MISC. INSPECTIONS: Location Gen.: X Well Sign: X Housekeeping: X (Gen.) Drlg. Rig: X Reserve Pit: X Flare Pit: N/A DIVERTER SYSTEM INSPECTION: Diverter Size: 21 in. Divert Valve(s) Full Opening: X 'Valve(s) Auto & Simultaneous: X Vent Line(s) Size: 10 in. Vent Line(s) Length: 100 ft. Line(s) Bifurcated: X Line(s) Down Wind: X Line(s) Anchored: X Turns Targeted / Long Radius: n/a ACCUMULATOR SYSTEM: Systems Pressure: Pressure After Closure: 200 psi Attained After Closure: Systems Pressure Attained: Nitrogen Bottles: 2100 Average 2950 psig 1550 psig min. 43 sec. 2 min. 15 sec. Eight Bottles psig MUD SYSTEM INSPECTION: Trip Tank: Mud Pits: Flow Monitor: Light Alarm X X X X X X Light Alarm X X X X GAS DETECTORS: Methane Hydrogen Sulfide: valves Non Compliance Items Remarks: Repair Items Within Day (s) And contact the Inspector @ 659-3607 Distribution orig. - Well File c - Oper/Rep c- Database c - Trip Rpt File c- Inspector AOGCC REP.: OPERATOR REP.: EFNJHFBD.XLS Louis R Grimaldi DVTRINSP.XLT (REV. 1/94) ALASKA OIL AND GAS CONSERVATION COMMISSION WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 2767542 July 22, 1994 Terry Jordan, Drlg Engr Supv BP Exploration (Alaska) Inc P O Box 196612 Anchorage, AK 99519-6612 Re: Well # Company Permit # Surf Loc Btmhole Loc Prudhoe Bay Unit S-40 BP Exploration (Alaska) Inc 94-96 2237'SNL, 712'EWL, Sec 35, T12N, R12E, UM 4181'NSL, 1143'WEL, Sec 2, T11N, R12E, UM Dear Mr Jordan: 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. ' Blowout prevention equipment (BOPE) must be tested in accordance With 20 AAC 25.035. Sufficient notice (approximately 24 hours) of the BOPE test performed before drilling below the surface casing shoe must be given so that a representative of the Commission may witness the test. Notice may be given by contacting the Commission petroleum field inspector on the Nodh Slope pager at 659-3607. David W~ Chairmar BY ORDER OF Ti- COMMISSION jo/encl c: Dept of Fish & Game, Habitat Section - w/o encl Dept of Environmental Conservation - w/o encl STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 2O AAC 25.OO5 la. Type of work Drill [] RedrillDIlb. Type of well. Exploratoryl-I Stratigraphic Test [] Development Oil [] Re-Entry [] DeepenFII Service [] Development Gas [] Single Zone [] Multiple Zone [] · 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration KBE = 67.7 feet Prudhoe Bay Field/Prudhoe 3. Address 6. Property Designation Bay Pool P. O. Box 196612. Anchorac~e. Alaska 99519-6612 ADL 28260 4. Location of well at surface . 7. Unit or property Name 11. Type Bond(s,,e 20 AAC 25,025) 2237' SNL, 712' EWL, SEC. 35, T12N, R12E Prudhoe Bay Unit At top of productive interval 8. Well number Number 67' NSL, 1523' WEL, SEC. 2, T12N, R12E S-40 (41-2-11-12) 2S100302630-277 At total depth 9. Approximate spud date Amount 4181' NSL, 1143' WEL, SEC. 2, T11N, R12E 7/26/94 $200,000.00 12. Distance to nearest 13. Distance to nearest well 4. Number of acres in property15. Proposed depth(M~)a,d'rVD) , property line ADL 28257-1199 feet S-17A 35'@ 1950'MD feet 2560 11470'MD/8768' TVD feet 16. To be completed for deviated wells 17. Anticipated pressure (see 2o AAC 25.035 (e)(2}) Kickoff depth ~9oo' feet Maximum hole angle 9o o Maximum surface 3330 psig At total deplh (TVD) 8800'/4390 psig 18. Casing program Setting Depth s,ze Specifications Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length M D TVD M D TVD (include stage data) 30" 20" 91.5# H-40 Weld 80' 30' 30' 110' 110' 260 sx Arcticset (Approx.) 13-1/2" 10-3/4" 45.5# Nr8OLHE Butt 3096' 29' 29' 3125' 3068' 995 sx CS 111/320 sx "G"/250 sx CS II 9-7/8" 7-5/8" 29.7# NT95HS NSCC 9740' 28' 28' 9768' 8658' 615 sx Class "G" 6-3/4" 4-1/2" 12.6# L-80 NSGC 1852' 9618' 8576' 11470' 8768' Uncemented slotted liner 1'9. 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 ConductorRE¢£1V£D Surface Intermediate JUL, 1 4 1994 Production Liner ~S~ 0il & Gas Cons, Commission Perforation depth: measured Anchorauo true vertical 2~). Attachments Filing fee [] Property plat [] BOP Sketch [] Diverter Sketch [] Drilling program ITl Drilling fluid program [] Time vs depth plot [] Refraction analysis F-I Seabed reportl'-I 20 AAC 25.050 requirements[] 21. I hereby certify that th~ foregoing is true and correct to the best of my knowledge P~ Signed //./.,~,{~/ / .~o~.'~.,(~'.,''--'- - T t e Drilling Engineer Supervisor Date i ~" '~ I " ' · · - - - - / / (. 1 Commission Use Only Permit Number IAPI number ]Approval date _ ISee cover letter ¢~"-'"' '~ 150- 0 ~---¢- -,~-~-----, ~'~ ~2~/ I ?" 2. ?_ - p t,./ Jfor other requirements Conditions of approval Samples required [] Yes [] No Mud Icg required [] Yes ,[~ No Hydrogen sulfide measures 1--] Yes [] No Directional survey required 'lEI Yes [] No Required working pressure for BOPE I-]2M; i--13M; J~!!~.SM; i-IIOM; I--115M; Other: Original Signed By by order of Approved by David W. Johnston Commissioner [ne commission Date?/'z~,/~.¥ Form 10-40i Rev. 12-1-85 Submit in triplicate [WellName: [S-40PBU Well Plan Summary [ Type of Well (producer or injector): [ Producer rSurface Location: Target Location: Bottom Hole Location: 2237' FNL 712' FWL Sec 35 T12N R12E UM 67' FSL 1523' FEL Sec 35 T12N R12E UM 4181' FSL l14Y FEL Sec 2 TllN R12E UM ]AFENumber: I 4P0578 [ I Estimated Start Date: MD: [ 11470' I I July 26, 1994 I [TVD: ] Well Design (conventional, slimhole, etc.): Formation Markers: I Rig: [Nabors 18E [ Operating days to complete: 13o '8768' I [ RT'GL I 29'5' I Slimhole High Angle Producer Formation Tops MD TVD (BKB) Base Permafrost 1948' 1948' Ugnu Zone 4A 3825' 3668' Top Seabee (CM3) 5749' 5318' Kuparuk/Put River Absent Absent IKRU/LCU 7323' 6668' Top Sag River 9688' 8619' Top Shublik 9768' 8658' Top Sadlerochit 10052' 8750' Target 10242' 8768' dub q 4 1534 Total Depth 11470' 8768' nioeka fill & ~a.~ flon~, flommi.q Anchorafm ion Casing/Tubin Program: Wt/Ft Hole Siz~ Csg/ - Wt/F[' Grade Conn Length Top Btm Tbg O.D. MD/TVD MD/TVD 30" 20" 91.5# H-40 Weld 80' 30'/30' 110'/110' 13 1/2" 10 3/4" 45.5# NT80LHE Butt 3096' 29'/29' 312573068' 9 7/8" 7 5/8" 29.7# NT95HS NSCC 9740' 28'/28' 9768'/8658' 6 3/4" 4 1/2" Slot 12.6g L-80 NSCC 1852' 9618'/8576' 1147078768' 4 1/2" 12.6 L-80 NSCT 9541' 27727' 956878546' Well Plan Summary Page 1 Logging Program'. Open Hole Loss: 13 1/2" Hole 9 7/8" Hole 6 3/4" Hole [Cased Hole Logs: 7 5/8" Casing 5 1/2" Liner None None MWD: GR None None Mud Program: I Special desisn considerations I Plan to use Xanvis mud in the 6-3/4" horizontal section Surface Mud Properties: I SPUD Mud Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 8.5 100 20 15 20 9 15 to to to to to to to 9.5 300 60 60 80 10 25 Intermediate Mud Properties: I LSND WBM Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 9.0 35 10 5 10 9.5 5 tO tO tO tO tO tO tO 10.0 50 15 10 20 10 10 Production Mud Properties: [ Flo-Pro Xanvis Pob,mer Mud Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 8.8 50 30 18 20 8 6 tO tO tO tO tO tO tO 9.2 60 50 23 30 10 8 NOTE: Keep annular velocities around drill pipe at or above 220 ft/min wherever possible. Directional'. I KOP: 11900. Maximum Hole Angle: Close Approach Well: 90 degrees S-17A at 1950' (35' away), The above listed wells will be secured during the close approach. RECEIVED ,,,, I a 1 Oil & (]as Cons. Commission Anchorage Well Control: Well control equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and drilling fluid system schematics on file with AOGCC. Well Plan Summary Page 2 PROPOSED DRILLING AND COMPLETION PROGRAM WELL S-40 [ 2-11-12 1PBU MIRU. NU diverter and function test same. Drill 13-1/2" hole to 3125' MD BKB. Run and cement 10-3/4", 45.5#, NT-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. A formation leak-off test will be performed 10' below the 10-3/4" shoe. Directionally drill 9-7/8" hole to the 7-5/8" casing point at the top of Shublik Formation. Run a 7-5/8", 29.7#, NT-95 NSCC casing string 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 with dead crude oil. Directionally drill approximately 1700' of 6-3/4" horizontal hole section with MWD/GR tools. Run 4-1/2", L-80 slotted liner from TD to 150' inside 7-5/8" casing shoe. Change over to NaC1 completion fluid. Run 7-5/8" production packer on the 4-1/2", 12.6g, L-80 NSCT 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. Freeze protect the tubing and annulus with Diesel from surface to 2100' TVDBKB. Set and test packer. Fluids incidental to the drilling of a well will be injected down CC-2A. Tubing Size: 4-1/2", 12.6 # L-80 tubing with 5 GLM's. REEEIVED JUL 1 4 1994 Alaska Oil & Gas Cons. Commission Anchora~u Well Plan Summary Page 3 CASING SIZE: 10-3/4" 10-3/4" SURFACE CASING CEMENT PROGRAM - BJ SERVICES CIRC. TEMP: 38°F PREFLUSH: 50 bbls fresh water ahead of lead slurry. LEAD CEMENT TYPE: COLD SET III ADDITIVES: retarder WEIGHT: 12.2ppg YIELD: 1.92ft3/sx APPROX. # SACKS: 995 MIX WATER: 10.53 gps THICKENING TIME: Greater than 4 hrs. @ 50°F TAIL CEMENT TYPE: CLASS G ADDITIVES: 2% A-7 +1 ghs FP-6L WEIGHT: 15.8ppg YIELD: 1.15ft3/sx APPROX. # SACKS: 320 MIX WATER: 4.95 gps THICKENING TIME: Greater than 3-1/2 hrs @ 50°F TOP JOB CEMENT TYPE: COLD SET II ADDITIVES: WEIGHT: 14.5 ppg APPROX. # SACKS' 250 YIELD: 0.96 ft3/sx MIX WATER: 3.89 gps THICKENING TIME: Greater than 2 hrs @ 50°F CENTRALIZER PLACEMENT: 1. Run 1 bow type centralizer per joint for the first 15 joints. 2. Place the centralizers in the middle of each joint with a stop collar. CEMENT VOLUME: 1. Lead slurry from TD to surface w/100% excess (less the tail slurry volume). 2. Tail slurry volume 320 sx (to cover 500' of casing shoe w/100% excess). 3. Top job volume 250 sx. RE¢£1VED JUL 1 4 1994 Oil & Gas Cons. Commission Anchorau~ Well Plan Summary Page 4 7-5/8" INTERMEDIATE CASING CEMENT PROGRAM - BJ SERVICES CASING SIZE: 7-5/8" CIRC. TEMP: 140°F PREFLUSH: 20 bbls fresh water SPACER: 50 bbls BJ MCS-4 Spacer weighted at current mud weight. LEAD CEMENT TYPE: CLASS G ADDITIVES: 3% A-2 + 0.4% FL-52 + 0.5% CD-32 + 1 ghs FP-6L WEIGHT: 11.0 ppg APPROX. 4/SACKS: 455 YIELD: 3.31 ft3/sx MIX WATER: 20.92 gps THICKENING TIME: 5 hrs FLUID LOSS: 150-250 cc/30 minutes FREE WATER: 0 cc TAIL CEMENT TYPE: CLASS G ADDITIVES: 0.3% FL-52 + 0.5% CD-32 + 0.1% A-2 + 1 ghs FP-6L WEIGHT: 15.8 ppg APPROX. # SACKS: 160 FLUID LOSS: 100-150 cc/30 minutes YIELD: 1.14 ft3/sx MIX WATER: 4.85 gps THICKENING TIME: 3-1/2 to 4-1/2 hrs FREE WATER: 0 cc CENTRALIZER PLACEMENT: 1. Run 2 Turbulator per joint to 300' MD above top of Sadlerochit. 2. Run 1 straight blade rigid centralizer every joint 300' above and below the Cretaceous interval. (only where lead cement is being pumped to the Cretaceous) 3. Run 1 solid body 7-3/4" x 9-1/4" centralizer or turbolator on first 2 joints inside 10-3/4" surface casing shoe. OTHER CONSIDERATIONS: Perform lab tests on mixed cement/spacer/mud program and ensure compatibility prior to pumping job. Ensure thickening times are adequate relative to pumping job requirement. Displace at 12 bpm. Mix lead slurry on the fly, batch mix the tail slurry. CEMENT VOLUME: 1. Lead slurry to 300' MD above top of Ugnu (top of Ugnu at 4262' MD) with 30% excess 2. Tail slurry to 500' MD above top of Sag River with 30% excess. 3. 80' MD 7-5/8", 29.7# capacity for float joints. Note: Hydrocarbon bearing zones are identified in the Ugnu and Sag River RECEIVED Well Plan Summary JUL. 1 4 1994 Alaska Oil & Gas Cons. Commission gnchoraue Page 5 PRUDHOE BAY BRTLLING GROUP Marker Ident if icat ion t4D N/S E/~ A) KB 0 0 B) K0P/BUiLD 2,5/~00 Jg00 0 C) 10-3/,4' CASING POINT 3~25 206 0) ENO 2.5/200 BUILD 3~8 210 E) CURVE 6/~00 9174 2~08 6~ ....... IARGET ....... 10242 2973 304~- H) END 6/!00 CURVE ~0242 2973 3048 I) TD 11470 4~40 3430 25O 2627 S-aD PLAN VIEW .... , ,, CLOSURE ' 5376 feet at Azimuth ~40.35 DECLINATION.' 29.284 E SCALE ' ~ ~nch = 700 feet' 0RAWN ' 05/~9/94 /~nadri ] ] $£h]umberger FL£ LLEIVEU i ............... ! i -"T" ~ ",%~. ~ jLJ' [ ~.:1~ t i ~ ~ Aias~ Oil ~t Gas Con~ Commi~;sion I ~ . ~ , ,, ! . , .... , -- : ......... . .... ~ .... 350 0 350 700 1050 !400 ~750 2J00 2450 2800 3~50 3500 3850 ~20C 4550 <- WES~ ' EAST -> PRUDHOE BAY ORI _L-IN6 GROUP .... I q , i i iiii ._ i1 , . ! , i i i i i ii i i . s-4o (Ps) VERTICAL SECTION VIEW Section at' ~6~.88 TvD Scale.' 1 ~nch = 1200 feet <KB> o--. , A i i Dep Scale.' ~ ~nch = 1200 feet ,I I I i O~n ' 05/]9/94 500-- ; .............. ! ........... q ....... : ... ii ~I I ~i ,4nadr ~.Z ] $~h ]umbGrg~r ...... I ~, ,,, I [ Mar~er Identification ND BKB S~CTN IN~LN ~00 · [ '" ~ ~ ] A) K8 0 0 0 0.00 j B) KOP/BUILD 2 5/~0C, lgO0 ~go0 -0 0.00 : J ' j C) ~0-3/4" CASING POINT 5~85 3068 272 30.53 ' i JGO0- ; ................ i '-; D) END 2,5/~00 BUILD 3138 307g 277 30,96 ~-:~ .... ' .......... ~¢¢~,:'~rsr' ~ E) CURVE 6/i00 9174 8~55 2915 30,95 , J G) ....... TARGET ....... t024~ 875B 3774 go .00 2400 ' ' ~ j "' i H) END 6/100 CURVE ~0~4~ 8758 3774 90.00 J i) tD j~47r, 8768 500] 90 O0 B 3000-~ ~ .... ' .... ~................ i ........ , ....... B ~oo-..~.6 _ iI 4200 ........................ ~.. : ' i , i ! I ~~ j ......... ; ..... i J i ' 6000,. J ' J , ' I ~oo'".,~,,~.~- -': ~ ..? .... ,._::_ ~¢~ IL_%.&. 994 '. ~ ~ ! ~s~ Oil & Gas Co~9. commi sion ... ~ ~.~ ,~ ~;~; ~. ~..~ _._.._ ~000 q600 I , t , I,,, -~OC, -600 O 600 ~2'00 ~800 ~OO 3000 3600 4200 4800 54C0 5000 6600 7200 Section Dep~rtuce WELL PERMIT CHECKLIST FIEL com~ INIT CLASS UNIT# PROGRAM: exp I1 der redrll [] serv [] ADMINISTRATION 1. Permit fee attached .................. Y' 2. Lease number appropriate ............... Y 3. Unique well name and number .............. 4. Well located in a defined pool ............. 5. Well located proper distance from drlg unit boundary.. 6. Well located proper distance from other wells ..... '7. Sufficient acreage available in drilling unit ..... 8. If deviated, is wellbore plat included ......... 9. Operator only affected party .............. 10. Operator has appropriate bond in force ......... 11. Permit can be issued without conservation order .... 12. Permit can be issued without administrative approval...I.Y 13. Can permit be approved before 15-day wait ....... ENGINEERING 14. Conductor string provided ............... ~ N 15. Surface casing protects all known USDWs ........ ~ N 16. CMT vol adequate to circulate on conductor & surf csg..~ N 17. CMT vol adequate to tie-in long string to surf csg . . ~ 18. CMT will cover all known productive horizons ....... Y 19. Casing designs adequate for C, T, B & permafrost .... ~ N 20. Adequate tankage or reserve pit ............ ~ N 21. If a re-drill, has a 10-403 for abndnmnt been approved. 22. Adequate wellbore separation proposed .......... ~ N 23. If diverter required, is it adequate .......... .~ N 24. Drilling fluid program schematic & equip list adequate.~ N 25. BOPEs adequate ................... N 26. BOPE press rating adequate; test to ~~-~ psig.~ N - 27. Choke manifold complies w/API RP-53 (May 84) ....... 28. Work will occur without operation shutdown ....... 29. Is presence of H2S gas probable ............. Y ~ GEOLOGY 30. Permit can be issued w/o hydrogen sulfide measures .... Y N/_ 31. Data presented on potential overpressure zones ..... 32. Seismic analysis 9f shallow ~S xo~es .......... 33. SeaBed condition survey (if off-shore) ........ ~ N 34. Contac~ name/phone for weakly progress reports ..... Y N [exploratory only] GEOLOGY: ENGINEERING: COMMISSION: Comments/Instr~ctions: 0 , HOW/jo - A:~FORMS~cheklist rev 03/94 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. · ~,:,o,,'r,o, .,s'r,"~ ~o,:,~~~. /"' BP EXPLORAT "~'C/:",, WELL S-40 PRUDHOE BAY ~,~_OOns. HICI?OFILHED AZT GRAX GRBX GRAU GRBU INC ROPS TCDX TVD WBCS Note: BELOW ARE THE MNEMONICS THAT CAN BE FOUND ON THE LIS TAPE GENERATED FOR BP EXPLORATION WELL S-40 Azimuth - True (Posted) Gamma Ray Corrected for Potassium effects (APl) [MWD] Gamma Ray Base Corrected for Potassium effects [MWD] Gamma Ray Not Corrected for Potassium effects (APl) [MWD] Gamma Ray Base Not Corrected for Potassium effects [MWD] Inclination - True (Posted) Rate of Penetration CDS Temperature [MWD] True Vertical Depth Surface Weight On Bit MWD is Measurement While Drilling deg MWD-API cps or cput MWD-API cps or cput deg fi/hr deg F ft klbs Copyright 1987,1988,1989,1990,1991 By WESTERN ATLAS INTERNATIONAL, INC. All rights reserved. PROGRAM: TAPESCAN REVISION' 2.64 Start of execution: Wed 31 AUG 94 10:53a = ECHOING INPUT PARAMETERS= INPUT PARAMETER FILE: TAPESCAN.INP 1 2 3 4 5 6 7 123456789012345678901234567890123456789012345678901234567890123456789012 I AUTOCURV = 0 , ! Automatic Curve renaming: 0=OFF, I=ON 2 AUTOFILE = 0 , ! Automatic FILE= generation: 0=OFF,I=ON 3 COMMENTS = 1 , ! Decode LIS Comment records: 0=OFF, I=ON 4 INFOREOS = 1 , ! Decode LIS Information records: 0=NO,I=YES 5 LISTMETHOD = 0 , ! Listing Method: 0=depth units 1=tape units 6 LISTFREQ = 100, ! Listing Frequency: Every n units 7 LISTMAX = 0 , ! Listing Maximum (0=no limit, value=list limit) 8 STATS = 0 , ! Statistics generation: 0=OFF, 1 =ON 9 FORCETYP = 0 , ! (I=BIT,2=LIS ... thru 35=Array Accoustic) (see table) 10 WRITEASCli = 0 , ! If 1, all ascii files will be written (file0001.dat,etc.) 11 WRITE'I'AP = I , ! Write Tape-Image File: 0=NO,I=YES 12 SPLITLIS = 1 , ! If 1 and WRITETAP on, split LIS logical files to physical 13 SUBFILES = /0/, ! Tape Subtile write selection 0NRITETAP must be on) 14 INTERPOLATE='YES' ! Set up for TAPE2WDS to interpolate datums ('YES'or'NO') 15 END I= = USER INPUT PARAMETERS AUTOCURV = 0 , AUTOFILE -- 0 , COMMENTS = 1 , INFORECS = 1 , LISTMETHOD = 0 , LISTFREQ = 100, LISTMAX = 0, STATS = 0, FORCETYP -- 0 , WRITEASCII = 0 , WRITETAP = 1 , SPLITLIS = 1 , SUBFILES = /0/, INTERPOLATE = 'YES' END !-- PROCESSING INTERVAL FROM 0.000 TO 0.000 ............. _~. ~-- CONSTANT PARAMETERS ........................................... AUTOCURV= O.O00000E+O0 AUTOFILE= O.O00000E+O0 COMMENTS= 1.00000 FORCETYP= O.O00000E+O0 INFORECS= 1.00000 LISTFREQ= 100.000 LISTMAX = O.O00000E+O0 LISTMETH-- O.O00000E +00 SELFTEST= O.O00000E +00 SPLITLIS= 1.00000 STATS = O.O00000E+O0 WRITEASC= O.O00000E+O0 WRITETAP= 1.00000 dp¢oef-- 1.00000 dpcte = 1.00000 drlength--O.O00000E+O0 listwave= O.O00000E+O0 maxrecln= O.O00000E+O0 minrecln-- O.O00000E+O0 nsamples-- O.O00000E+O0 numcurvs= O.O00000E+O0 numdatar= O.O00000E +00 numrecfl-- O.O00000E +00 tfendep = O.O00000E +00 tflevsp -- O.O00000E+O0 tfstdep -- O.O00000E+O0 wcrbot -- O.O00000E+O0 wcrlevsp-- O.O00000E+O0 wcrtop -- O.O00000E+O0 !-- ARRAY PARAMETERS .............................................. SUBFILES(1) = 0.000000E+00 SUBFILES(2) = -9999.00 SUBFILES(3) =-9999.00 SUBFILES(4) =-9999.00 SUBFILES(5) =-9999.00 SUBFILES(6) =-9999.00 SUBFILES(7') =-9999.00 SUBFILES(8) =-9999.00 SUBFILES(9) = -9999.00 SUBFILES(10) = -9999.00 SUBFILES(11) = -9999.00 SUBFILES(12) = -9999.00 SUBFILES(13) = -9999.00 SUBFILES(14) -- -9999.00 SUBFILES(15) = -9999.00 SUBFILES(16) = -9999.00 SUBFILES(17) = -9999.00 SUBFILES(18) = -9999.00 SUBFILES(19) -- -9999.00 SUBFILES(20) -- -9999.00 SUBFILES(21) -- -9999.00 SUBFILES(22) -- -9999.00 SUBFILES(23) = -9999.00 SUBFILES(24) -- -9999.00 SUBFILES(25) -- -9999.00 SUBFILES(26) = -9999.00 SUBFILES(27) -- -9999.00 SUBFILES(28) = -9999.00 SUBFILES(29) = -9999.00 SUBFILES(30) = -9999.00 SUBFILES(31) = -9999.00 SUBFILES(32) = -9999.00 SUBFILES(33) -- -9999.00 SUBFILES(34) = -9999.00 SUBFILES(35) -- -9999.00 SUBFILES(36) -- -9999.00 SUBFILES(37) = -9999.00 SUBFILES(38) = -9999.00 SUBFILES(39) = -9999.00 SUBFILES(40) -- -9999.00 SUBFILES(41) = -9999.00 SUBFILES(42) -- -9999.00 SUBFILES(43) -- -9999.00 SUBFILES(44) = -9999.00 SUBFILES(45) -- -9999.00 SUBFILES(46) -- -9999.00 SUBFILES(47) -- -9999.00 SUBFILES(48) = -9999.00 SUBFILES(49) - -9999.00 SUBFILES(50) -- -9999.00 SUBFILES(51) -- -9999.00 SUBFILES(52) = -9999.00 SUBFILES(53) -- -9999.00 SUBFILES(54) -- -9999.00 SUBFILES(55) = -9999.00 SUBFILES(56) -- -9999.00 SUBFILES(57) -- -9999.00 SUBFILES(58) -- -9999.00 SUBFILES(59) = -9999.00 SUBFILES(60) = -9999.00 SUBFILES(61) = -9999.00 SUBFILES(62) = -9999.00 SUBFILES(63) = -9999.00 SUBFILES(64) -- -9999.00 SUBFILES(65) = -9999.00 SUBFILES(66) -- -9999.00 SUBFILES(67) -- -9999.00 SUBFILES(68) = -9999.00 SUBFILES(69) -- -9999.00 SUBFILES(70) = -9999.00 SUBFILES(71) = -9999.00 SUBFILES(72) -- -9999.00 SUBFILES(73) -- -9999.00 SUBFILES(74) -- -9999.00 SUBFILES(75) = -9999.00 SUBFILES(76) = -9999.00 SUBFILES(77) = -9999.00 SUBFILES(78) -- -9999.00 SUBFILES(79) = -9999.00 SUBFILES(80) = -9999.00 SUBFILES(81) -- -9999.00 SUBFILES(82) = -9999.00 SUBFILES(83) -- -9999.00 SUBFILES(84) = -9999.00 SUBFILES(85) = -9999.00 SUBFILES(86) = -9999.00 SUBFILES(87) -- -9999.00 SUBFILES(88) -- -9999.00 SUBFILES(89) = -9999.00 SUBFILES(90) -- -9999.00 SUBFILES(91) -- -9999.00 SUBFILES(92) -- -9999.00 SUBFILES(93) = -9999.00 SUBFILES(95) = -9999.00 SUBFILES(97) = -9999.00 SUBFILES(99) = -9999.00 SUBFILES(101) = -9999.00 SUBFILES(103) = -9999.00 SUBFILES(105) = -9999.00 SUBFILES(107) = -9999.00 SUBFILES(109) = -9999.00 SUBFILES(111) = -9999.00 SUBFILES(113) = -9999.00 SUBFILES(115) = -9999.00 SUBFILES(117) = -9999.00 SUBFILES(119) = -9999.00 SUBFILES(121 ) = -9999.00 SUBFILES(123) = -9999.00 SUBFILES(125) = -9999.00 SUBFILES(127) = -9999.00 SUBFILES(94) = -9999.00 SUBFILES(96) = -9999.00 SUBFILES(98) = -9999.00 SU BFILES (100) = -9999.00 SU BFILES (102) = -9999.00 SU BFILES (104) = -9999.00 SU BFILES (106) = -9999.00 SU BFI LES (108) = -9999.00 SUB FI LES (110) = -9999.00 SUBFI LES (112) = -9999.00 SUBFILES(114) = -9999.00 SUBFILES(116) = -9999.00 SUBFILES(118) = -9999.00 SUBFILES(120) = -9999.00 S U B Fl LES (122) = -9999.00 SUBFILES(124) = -9999.00 SUBFILES(126) = -9999.00 SUBFILES (128) = -9999.00 !-- STRING PARAMETERS ............................................. INTERPOL= YES Input Tape Device, LU (1) is: TAPEC: Output Tape-Image file, LU (2) is: C:\DATA\1375\1375.TAP (Output Tape-Image file will be created) Listing Method ("LISTMETH") = 0, Depth Unit oriented listing. Listing Frequency ("LISTFREQ") is every ( 100) units of Depth. Listing output limiting (LISTMAX) not enabled... (to enable list limiting set LISTMAX positive) Data Statistics reporting ("STATS") has not been enabled. (Specify STATS = 1 to enable this feature) Automatic curve renaming has been disabled by user input (AUTOCURV--0). Automatic "FILE= n" card generation is disabled. (This is the program default, AUTOFILE=0) (Specify AUTOFILE= 1 to enable this feature) LIS comment record decoding (COMMENTS = 1) has been enabled by user input. LIS information record decoding (INFORECS=I) has been enabled by user input. The WRITEASC option has not been enabled... (to write ASCII subfiles specify WRITEASC=I) Tape Subtile 1 is type: LIS **** REEL HEADER **** MWD 94/8/31 1375 01 **** TAPE HEADER **** MWD 94/8/31 1375 01 Tape Subtile: 1 Minimum record length: Maximum record length: 2 records... 132 bytes 132 bytes Tape Subtile 2 is type: LIS LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 TAPE HEADER PRUDHOE BAY UNIT MWD/MAD LOGS WELL NAME: APl NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA MWD RUN 6 JOB NUMBER: 1375 LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION(FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD S-40 50-029-22494 BP EXPLORATION BAKER HUGHES INTEQ 30-AUG-94 MWD RUN 7 MWD RUN 8 1375 1375 S. BURKHARDT M. MILLER D. NAKAMURA D. NAKAMURA 68.10 67.60 38.20 35 12N 12E 3042 4568 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (1~1') 1ST STRING 13.500 10.750 3138.0 2ND STRING 9.875 7.625 9878.0 3RD STRING 6.750 PRODUCTION STRING REMARKS: S. STURGEN M. DOWNEY **** FILE HEADER **** MWD .001 1024 LIS COMMENT RECORD(s): 123456789~123456789~123456789~123456789~123456789~123456789~123456789~123456789~ FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH MWD 9742.0 11366.0 $ BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) ......... EQUIVALENT UNSHIFTED DEPTH ......... BASELINE DEPTH $ MERGED DATA SOURCE PBU TOOL CODE MWD 6 MWD 7 MWD 8 $ REMARKS: BIT RUN NO MERGE TOP 9742.0 10178.0 10178.0 11083.0 11083.0 11366.0 MERGE BASE CN : BP EXPLORATION WN :S-40 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT :ALASKA LIS COMMENT RECORD(s)' 12345678901234567890123456789012345678901234567890123456789012345678901234567890 THIS FILE CONTAINS EDITED MERGED MWD DATA. * FORMAT RECORD (TYPEcf 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value= 255) Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry types encountered: 1 2 3 4 5 6 7 8 91011 1213141516 0001 00000001 0001 Rep Code Count Bytes 68 4 16 Sum: fndun a [F 4 16 16 ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 4 Curves: Name Tool Code Samples Units I GR MWD 68 1 GAPI 2 ROP MWD 68 1 FPHR 3 TEMP MWD 68 1 DEGF 4 WBCS MWD 68 1 LB 16 APl APl APl APl Log Crv Crv Size Length Typ Typ CIs Mod 4 4 98 66O 71 6 4 4 98 660 71 6 4 4 98 66O 71 6 4 4 98 66O 71 6 ** Routine LEVONE detects data discrepancy: DSB indicates: 1 FRAMES Data Record Length indicates: 50 FRAMES * DATA RECORD (TYPE# O) 1006 BYTES * Total Data Records: 65 Tape File Start Depth = 9742.000000 Tape File End Depth = 11366.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 3582 datums Tape Subtile: 2 140 records... Minimum record length: 62 bytes Maximum record length: 1006 bytes Tape Subtile 3 is type: LIS **** FILE HEADER **** MWD .002 1024 LIS COMMENT RECORD(s)' 12345678901234567890123456789012345678901234567890123456789012345678901234567890 FILE HEADER FILE NUMBER' 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 6 '-~ DEPTH INCREMENT: .2500 # FILE SUMMARY _ VENDOR TOOL CODE START DEPTH MWD 9742.0 10178.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION' DATA TYPE (MEMORY OR REAL-TIME): _ TD DRILLER (FT)' TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 2O AUG 94 M1.34 M1.34 REAL-TIME .0 9742.0 10178.0 0 64,0 88.0 TOOL STRING (TOP TO DO'II'OM) VENDOR TOOL CODE TOOL TYPE MWD NAVI GAM MA $ 1408 TOOL NUMBER BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT)' 6.750 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): LSND/XANVIS 9.00 6.0 10.4 43000 .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): .000 MUD AT MAX CIRCULATING TEMPERATURE: .000 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .0 .0 .0 NEUTRON TOOL MATRIX: SANDSTONE MATRIX DENSITY: 2.65 HOLE CORRECTION (IN): 6.750 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: THE INTERVAL FROM 9760 TO 9878 FT MD (8666 TO 8718 FT TVD) WAS LOGGED BEHIND 7 5/8" CASING. 7 5/8" CASING - DRILLER'S DEPTH 9878 FT MD (8718' TVD) MWD LOGGER'S DEPTH 9878 FT MD (8718 FT TVD) LSND DRILLING FLUID CHANGED OUT WITH XANVIS KCL FLO-PRO MUD AT 10:30 HOURS, AUG 19, 1994; BIT DEPTH 10000 FEET GAMMA SENSOR DEPTH 9961 FEET. $ CN : BP EXPLORATION WN :S-40 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT :ALASKA LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 THIS FILE CONTAINS RAW MWD DATA FROM BIT RUN 6. * FORMAT RECORD (TYPE# 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value= 255) Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry types encountered: 1 2 3 4 5 6 7 8 91011 1213141516 0001 00000001 0001 Rep Code Count Bytes 68 10 4O Sum: 10 40 40 fndun a [F ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 10 Curves: Name Tool Code Samples Units APl APl APl APl Log Crv Crv Size Length Typ Typ CIs Mod 1 AZT MWD 68 1 DEG 4 2 GRAX MWD 68 1 GAPI 4 3 GRAU MWD 68 1 GAPI 4 4 GRBX MWD 68 1 GAPI 4 5 GRBU MWD 68 1 GAPI 4 6 INC MWD 68 1 DEG 4 7 ROPS MWD 68 1 FPHR 4 8 TCDX MWD 68 1 DEGF 4 9 TVD MWD 68 1 FT 4 10 WBCSMWD 68 1 LB 4 4O 4 98 660 71 6 4 98 660 71 6 4 98 66O 71 6 4 98 660 71 6 4 98 66O 71 6 4 98 660 71 6 4 98 660 71 6 4 98 660 71 6 4 59 324 56 5 4 98 660 71 6 ** Routine LEVONE detects data discrepancy: DSB indicates: 1 FRAMES Data Record Length indicates: 23 FRAMES * DATA RECORD (TYPE# 0) 1018 BYTES * Total Data Records: 76 Tape File Start Depth = 9742.000000 Tape File End Depth = 10178.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 2566 datums Tape Subtile: 3 148 records... Minimum record length: 62 bytes Maximum record length: 1018 bytes Tape Subtile 4 is type: LIS **** FILE HEADER **** MWD .003 1024 LIS COMMENT RECORD(s)' 12345678901234567890123456789012345678901234567890123456789012345678901234567890 FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 7 DEPTH INCREMENT: .2500 # FILE SUMMARY VENDOR TOOL CODE START DEPTH MWD 10178.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT)' TOP LOG INTERVAL (FT)' BO'II'OM LOG INTERVAL (FT)' BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: 11083.O STOP DEPTH 21 AUG 94 M1.34 M1.34 REAL-TIME .0 10178.0 11083.0 0 88.0 90.9 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE MWD NAVIGAMMA $ 1396 TOOL NUMBER BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN)' DRILLER'S CASING DEPTH (FT): 6.750 .0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): XANVIS/KCL 9.10 62.0 8.6 38000 .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): .000 MUD AT MAX CIRCULATING TEMPERATURE: .000 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .0 NEUTRON TOOL MATRIX: SANDSTONE MATRIX DENSITY: 2.65 HOLE CORRECTION (IN)' 6.750 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: $ CN :BP EXPLORATION WN :S-40 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT :ALASKA .0 .0 LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 THIS FILE CONTAINS RAW MWD DATA FROM BIT RUN 7. * FORMAT RECORD (TYPE# 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value= 255) Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry types encountered: 1 2 3 4 5 6 7 8 91011 1213141516 0001 00000001 0001 Rep Code Count Bytes 68 10 4O Sum: 10 40 40 fndun a [F ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 10 Curves: Name Tool Code Samples Units 1 AZT MWD 68 1 DEG 2 GRAX MWD 68 1 GAPI 3 GRAU MWD 68 1 GAPI 4 GRBX MWD 68 1 GAPI 5 GRBU MWD 68 1 GAPI 6 INC MWD 68 1 DEG 7 ROPS MWD 68 1 FPHR 8 TCDX MWD 68 1 DEGF 9 TVD MWD 68 1 FT 10 WBCS MWD 68 1 LB 40 APl APl APl APl Log Crv Crv Size Length Typ Typ CIs Mod 4 4 98 66O 71 6 4 4 98 66O 71 6 4 4 98 660 71 6 4 4 98 660 71 6 4 4 98 660 71 6 4 4 98660 71 6 4 4 98 660 71 6 4 4 98 660 71 6 4 4 59 324 56 5 4 4 98 660 71 6 ** Routine LEVONE detects data discrepancy: DSB indicates: I FRAMES Data Record Length indicates: 23 FRAMES * DATA RECORD (TYPE# 0) 1018 BYTES * Total Data Records: 158 Tape File Start Depth = 10178.000000 Tape File End Depth -- 11083.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units -- Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 8884 datums Tape Subtile: 4 222 records... Minimum record length: 62 bytes Maximum record length: 1018 bytes Tape Subtile 5 is type: LIS **** FILE HEADER **** MWD .OO4 1024 LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 8 DEPTH INCREMENT: .2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH MWD 11083.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BO'FI'OM LOG INTERVAL (FI'): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: 11366.0 STOP DEPTH 22 AUG 94 M1.34 M1.34 REAL-TIME .0 11083.0 11366.0 0 89.3 89.6 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE MWD NAVIGAMMA $ 1408 TOOL NUMBER BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6.750 BOREHOLE CONDITIONS MUD TYPE: XANVIS/KCL MUD DENSITY (LB/G): 9.10 MUD VISCOSITY (S): 71.0 MUD PH: 8.8 MUD CHLORIDES (PPM): 39000 FLUID LOSS (C3): .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT)' .000 MUD AT MAX CIRCULATING TEMPERATURE: .000 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .0 .0 .0 NEUTRON TOOL MATRIX: SANDSTONE MATRIX DENSITY: 2.65 HOLE CORRECTION (IN)' 6.750 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: THE INTERVAL FROM 11321 TO 11366 FT MD (8787 TO 8787 FT TVD) WAS NOT LOGGED DUE TO SENSOR OFFSET AT THE END OF THE WELL. THE GAMMA RAY TRACE HAS BEEN CORRECTED FOR POTASSIUM EFFECTS. $ CN :BP EXPLORATION WN :S-40 FN : PRUDH©E BAY COUN : NORTH SLOPE STAT :ALASKA LIS COMMENT RECORD(s)' 12345678901234567890123456789012345678901234567890123456789012345678901234567890 THIS FILE CONTAINS RAW MWD DATA FROM BIT RUN 8. * FORMAT RECORD (TYPE# 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value= 255) Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry types encountered: I 2 3 4 5 6 7 8 91011 1213141516 0001 00000001 0001 Rep Code Count Bytes 68 10 4O Sum: 10 40 40 fndun a [F ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 10 Curves: Name Tool Code Samples Units APl APl APl APl Log Crv Crv Size Length Typ Typ CIs Mod 1 AZT MWD 68 1 DEG 4 2 GRAX MWD 68 1 GAPI 4 3 GRAU MWD 68 1 GAPI 4 4 GRBX MWD 68 1 GAPI 4 5 GRBU MWD 68 1 GAPI 4 6 INC MWD 68 1 DEG 4 7 ROPS MWD 68 1 FPHR 4 8 TCDX MWD 68 1 DEGF 4 9 TVD MWD 68 1 FT 4 10 WBCS MWD 68 1 LB 4 4O 4 98 660 71 6 4 98 660 71 6 4 98 660 71 6 4 98 660 71 6 4 98 660 71 6 4 98 660 71 6 4 98 66O 71 6 4 98 660 71 6 4 59 324 56 5 4 98 660 71 6 ** Routine LEVONE detects data discrepancy: DSB indicates: 1 FRAMES Data Record Length indicates: 23 FRAMES * DATA RECORD (TYPE# 0) 1018 BYTES * Total Data Records: 50 Tape File Start Depth = 11083.000000 Tape File End Depth = 11366.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 4240 datums Tape Subtile: 5 119 records... Minimum record length: 62 bytes Maximum record length: 1018 bytes Tape Subtile 6 is type: LIS **** TAPE TRAILER **** MWD 94/8/31 1375 01 **** REEL TRAILER **** MWD 94/8/31 1375 01 Tape Subtile: 6 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Wed 31 AUG 94 10:53a Elapsed execution time = 28.67 seconds. SYSTEM RETURN CODE = 0 Tape Subtile 1 is type: LIS Tape Subtile 2 is type: LIS DEPTH GR ROP TEMP WBCS 9742.0000 -999.2500 -999.2500 -999.2500 -999.2500 9742.5000 59.6695 -999.2500 -999.2500 -999.2500 9800.0000 46.1731 280.8733 143.6000 15.5631 9900.0000 111.7733 9.8374 -999.2500 33.1921 10000.0000 96.0404 16.0000 -999.2500 19.5608 10100.0000 40.3679 15.5749 -999.2500 34.2027 10200.0000 58.2293 29.2284 -999.2500 26.4763 10300.0000 19.4983 88.8047 -999.2500 21.3090 10400.0000 15.7647 125.3159 -999.2500 27.4543 10500.0000 18.9671 108.1929 -999.2500 20.2364 10600.0000 20.8134 124.5885 -999.2500 23.7459 10700.0000 20.4031 117.7698 -999.2500 21.6106 10800.0000 13.2231 91.3370 -999.2500 19.3448 10900.0000 64.4191 29.1955 -999.2500 20.8933 11000.0000 46.2298 45.3532 -999.2500 23.5666 11100.0000 20.1803 64.0122 -999.2500 23.3466 11200.0000 23.5184 77.7371 -999.2500 44.2275 11300.0000 18.4673 125.9282 -999.2500 28.4812 11366.0000 -999.2500 -999.2500 -999.2500 -999.2500 Tape File Start Depth = 9742.000000 Tape File End Depth = 11366.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet Tape Subtile 3 is type: LIS DEPTH AZT GRBU INC WBCS GRAX ROPS 9742.0000 159.4555 -999.2500 -999.2500 60.1000 -999.2500 -999.2500 9742.2500 159.4750 -999.2500 -999.2500 60.1187 -999.2500 -999.2500 9800.0000 159.1875 46.1731 -999.2500 63.3000 280.8733 15.5631 9900.0000 158.2774 111.7733 -999.2500 69.2129 9.8374 33.1921 10000.0000 157.3000 96.0404 -999.2500 74.7667 16.0000 19.5608 10100.0000 157.5733 40.3679 -999.2500 83.0467 15.5749 34.2027 10178.0000 159.1800 22.0221 -999.2500 88.5600 88.6480 23.2895 GRAU TCDX -999.2500 -999.250O -999.25OO -999.2500 -999.2500 143.6000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 GRBX TVD -999.2500 8657.7324 -999.2500 8657.8574 17.2727 8685.1836 40.2500 8725.3594 37.500O 8755.9043 18.0000 8776.1328 11.7500 8781.5410 Tape File Start Depth = 9742.000000 Tape File End Depth = 10178.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet Tape Subtile 4 is type: LIS DEPTH AZT GRBU INC WBCS 10178.0000 -999.2500 23.2895 159.1800 88.5600 1O178.25OO -999.2500 23.0858 159.1650 88.5717 10200.0000 -999.2500 26.4763 158.3452 89.4774 10300.0000 -999.2500 21.3090 158.3226 89.7290 10400.0000 -999.2500 27.4543 160.0000 89.5000 1O5O0.00OO -999.25OO 20.2364 159.4666 89.1167 10600.0000 -999.2500 23.7459 161.5645 90.7065 10700.0000 -999.2500 21.6106 159.4226 90.7742 10800.0000 -999.2500 19.3448 161.8474 90.4395 10900.0000 -999.2500 20.8933 161.2600 90.0000 11000.0000 -999.2500 23.5666 159.5600 89.4067 11083.0000 -999.2500 23.6237 159.6710 89.3000 GRAX ROPS 22.0221 88.648O 24.2693 87.0912 58.2293 29.2284 19.4983 88.8047 15.7647 125.3159 18.9671 108.1929 20.8134 124.5885 20.4031 117.7698 13.2231 91.3370 64.4191 29.1955 46.2298 45.3532 49.3227 94.6593 GRAU TCDX -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.250O -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 GRBX TVD 11.7500 8781.5410 12.6250 8781.5469 25.2857 8781.9707 11.8000 8782.2246 10.5000 8783.0547 11.5000 8784.3223 12.1429 8785.3027 12.0000 8783.8320 9.5000 8782.7793 27.0000 8782.3262 20.6667 8782.9570 21.7778 8783.9395 Tape File Start Depth = 10178.000000 Tape File End Depth = 11083.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet Tape Subtile 5 is type: LIS DEPTH AZT GRBU INC WBCS GRAX ROPS 11083.0000 159.6710 49.3227 -999.2500 89.3000 94.6593 23.6237 11083.2500 159.6693 50.5746 -999.2500 89.3000 97.6656 23.9171 11100.0000 159.6774 20.1803 -999.2500 89.3194 64.0122 23.3466 11200.0000 159.2774 23.5184 -999.2500 89.3548 77.7371 44.2275 11300.0000 158.2500 18.4673 -999.2500 89.5700 125.9282 28.4812 11366.0000 158.4000 -999.2500 -999.2500 89.6000 -999.2500 -999.2500 GRAU TCDX -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 GRBX TVD 21.7778 8783.9395 22.2222 8783.9434 11.6000 8784.1426 12.7692 8785.2773 11.0000 8786.2852 -999.2500 8786.7520 Tape File Start Depth = 11083.000000 Tape File End Depth = 11366.000000 Tape File Level Spacing -- 0.250000 Tape File Depth Units -- Feet Tape Subtile 6 is type: LIS