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Home My WebLink About198-202 • I bP BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Via' 3 :ZOP Post Office Box 196612 ® Anchorage, Alaska 99519 -6612 +^; n COOS. C . siun December 20, 2010 Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 11� 2. 4 2.1311 333 West 7 Avenue Anchorage, Alaska 99501 161# Subject: Corrosion Inhibitor Treatments of GPB U Pad Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from U 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 0 • . BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) • U -pad Date: 12/20/10 Corrosion Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft na gal U -01 1920110 50029222440000 NA 0.8 NA 3.4 1/12/2010 U -02A 1982390 50029211700100 NA 0.6 NA 1.7 1/12/2010 U -03 1841470 50029211730000 NA 0.4 NA 1.7 1/12/2010 U -05A 2090700 50029211920100 NA 0.6 NA 3.4 1/12/2010 U -06B 2050640 50029211170200 NA 1.9 NA 15.3 1/13/2010 U -07 1840900 50029211270000 NA 0.6 NA 5.1 1/13/2010 U-08A 1942029 50029211360100 NA 1.4 NA 8.5 1/13/2010 U -09A 1982120 50029211440100 NA 0.2 NA 1.7 1/13/2010 U -10 1851970 50029214230000 NA 7.7 NA 57.8 12/28/2009 U -11B 1931080 50029214200200 NA 0.8 NA 5.1 1/13/2010 U -12A 2041470 50029214090100 NA 0.6 NA 3.4 1/12/2010 U -13 1781010 50029203550000 NA 0.1 NA 3.4 1/12/2010 U -14 1931000 50029223860000 NA 0.1 NA 1.7 1/13/2010 U -15B 2011970 50029225650200 NA 1.4 NA 13.6 1/13/2010 Schlumberger Alaska Data & Consulting Services 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATTN: Beth 09/30/03 NO. 2981 Company: State of Alaska Alaska Oil & Gas Cons Corem Attn: Lisa Weepie 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Color Well Job # Log Description Date Blueline Prints CD D.S. 5-16B ~ ~' q ,- [ I~ LDL 09/10103 1 P2-60. i q ~ -~ '\ PROD PROFILE W/DEFT 09/13103 1 H-26 ~' ,~'j:~ -~,~. "~'---~.. PROD PROFILE 09117103 1 NK-29 PROD PROFILE W/DEFT 09109/03 1 D.S. 3-29 '~ ~ ~ '- (~)'~r'q PROD PROFILE W/DEFT 09/19103 1 D.S. 15-18 [(~'~ '-(~('~" SBHP SURVEY 09119/03 1 U-0SA I I;~'~- c--~(~ SBHP SURVEY 09120/03 1 W-24.. I ~,C~ ~ .-~_~ / LDL 09/23103 D.S. 9-06. I ~ I~'--C')L(~ PROD PROFILE W/DEFT 09/20/03 1 D.S. 2-08B '~(~]' ~ ~_~,¢==j 23375 CH EDIT MCNL 05131/03 1 W-23A~. ' '. 23373 OH EDIT LWD IMPULSE DATA 04130/03 W-23A ~.,.~(~'~--(~c:~ ('~ 23373 MD VISION RESISTIVITY 04/30103 1 ~" .... W-23A ~ - 23373 TVD VISION RESISTIVITY 04130103 1 .W-23A ~ '23373 MD BOREHOLE PROFILE 04130103 1 MPS-02~ ~ ,,-) ,_1~-'~ :::::7- 10624537 CH EDIT SCMT GR (PDC) 08/09/03 1 MPS-02 ¢/"C~'~---~ ~"- ( 23435 SCMT 08109103 2 MPS-18~., ~,,--¢~,.o.5~ _~ 10559235 CH EDIT SCMT GR (PDC) 03/03/03 MPS-18.? C~-~ c.,- ~,,~ 10559235 SCMT 03103103 2 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotectnical Data Center LR2-1 900 E. Benson Blvd. ~,:c~ Anchorage, Alaska 99508 Schlumberger GeoQuest 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATTN: Beth Date Delivered: 198-202-0 PRUDHOE BAY UNIT U-08A 50- 029-21136-01 Roll #1: Start: Stop Roll #2: Start Stop MD 1_2022p~ TVD 08988 - Completion Date: _f~9 Completed Status: 1-OIL BP EXPLORATION (ALASKA) rNC Current: T Name D 9196 D 9260 L IL L NGP-MD L NGP-TVD R SRVY LSTNG R SRVY RPT~''''''' Interval I PDS INDUCTION OH SPERRY GR OH FINAL 9290-11829 OH FINAL 9515-12022 OH FINAL 7720-8904 OH BHI 9450.00-12022. OH SPERRY 9450-12022. OH Sent Received T/C/D 6/8/99 6/8/99 7/22/99 7/29/99 6/8/99 6/8/99 8/5/99 8/5/99 8/5/99 8/5/99 5/20/99 5/21/99 D 5/20/99 5/21/99 D Wednesday, March 28,2001 Page 1 of 1 WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Conun. Atm.: Lori Taylor 3001 Porcupine Drive Anchorage, Alaska 99501 MWD Formation Evaluation Logs U-08A, Aug 5, t999 AK-MW-90092 U-08A: 2" x 5" MD Gamma Ray Logs: 50-029-21136-01 2" x 5" TVD Gamma Ray Logs: 50-029-21136-01 1 Blueline 1 Rolled Sepia ] B1uetine 1 Rolled Sepia PLEASE ACKNOWLEDGE RECElPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO TItE ATrENTION OF: Sperry-Sun Drilling Services Attn: Jim Galvin 5631 Silverado Way, Suite G. Anchorage, Alaska 99518 .. Date: BP Exploration (Alaska) Inc. Petro-technicat Data Center, MB3-3 900 E. Benson Blvd. Anchorage, Alaska 99519-6612 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (907) 273-3500 · Fax (907) 273-3535 A Halliburton Company WELL LOG TRANSMITFAL To: State of Alaska July 22, 1999 Alaska Oil and Gas Conservation Comm. Attn.: Loft Taylor 3001 Porcupine Dr. Anchorage, Alaska 99501 MWD Formation Evaluation Logs U-08A AK-MW-90092 1 LDWG formatted Disc with verification listing. At>I/t: 50-029-21136-01 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING THE ATTACHED COPIES OF TRE TRANSM1TYAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Jim Galvin 5631 Silverado Way, Suite G. Anchorage, Alaska 99518 ~..~ .:~ .~ y ~. ,~.:~ ,~ ti , ~. ~: · BP Exploration (Alaska) Inc. Petro-technical Data Center, MB3-3 900 E. Benson Blvd. Anchorage, Alaska 99519-6612 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (907) 273-3500 · Fax (907) 273-3535 A Halliburton Company BP EXPLORATION Date:6/8/1999 Trans#90495 BPXAIPBU OPEN HOLE LOGS Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4636 Sw Rec Log Type Desc Rec Date Company .Comments Name Type Code U-08A OH COIL TUBING INDUCTION LOG ~ 03-25-99 PDS TUBING INDUCTION LOG ~I 03-25-99~ PDS LAS FORMAT DISK COIL U-08A Please sign and return one copy of this transmittal. Thank-you, Scott LaVoie Petrotechnical Data Center .._ Open Hole Loqs ARCO - D. Schwartz EXXON - Susan Nisbet PHILLIPS - Info Management AOGCC - Lori Taylor BPXA - Becky Clark MB9-3 (No Diskette) Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well [] Oil ~1 Gas [] Suspended [] Abandoned [] Service 2. Name of Operator 7. Permit Number BP Exploration (Alaska)Inc. 98-202 3. Address 8. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-21136-01 4. Location of well at surface . 1~~. 9. Unit or Lease Name 78' SNL, 1789' WEL, SEC. 19, T11 N, R13E, UM '. Prudhoe Bay Unit At top of productive interval~.,"'_" 7" ~ '~ ~ ' ~11~.~ i' 10. Well Number 1099' SNL, 900' EWL, SEC. 20, Tll N, R13E, UM ~//'"~2¢*/~'_ --~L~,~ t'.~.,~--.- - , ~, U-08A At total depth ~ l'&,¢l~[ 11. Field and Pool 2660' SNL, 280' WEL, SEC. 19, T11N, R13E, UM - ~ ' ~'~ Prudhoe Bay Field / Prudhoe Bay 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. Pool KBE - 84.64' AMSLI ADL 028283 12. Date Spudded3/20/99 113' Date T'D' Reached I 14' Date C°mp" Susp" °r Aband'115' water depth' if Offsh°re i16' N°' Of c°mpietiOns3/25/99 3/28/99 N/A MSLI One 17. Total Depth (MD+TVD) 118. Plug Back Depth (MD+TVD)I19. Directional Survey 120. Depth where SSSV set 121. Thickness of Permafrost 12022 8988 FTI 11768 8956 FTI []Yes E~]NoI (Nipple) 2011' MDI 1900' (Approx.) 22. Type Electric or Other Logs Run MWD, RES, GR, Memon/Induction 23. CASlNG~ LINER AND CEMENTING RECORD CASING SETTING DEPTH HOLE SIZE WT. PER FT. GRADE TOP Bo~roM SIZE CEMENTING RECORD AMOUNT PULLED 20"X 30" Insulated Conductor Surface 110' 36" 8 cu yds concrete 13-3/8" 72# L-80 Surface 2699' 17-1/2" 3720 cu ft Permafrost E & II 9-5/8" 47# L-80 Surface 9426' 12-1/4" 1700 cuft Class 'G', 230 cuft Class 'G', 7" 26# L-80 9163' 9500' 8-1/2" 275 cuft Class 'G' 2-7/8" 6.16# L-80 9158' 11835' 3-3/4" 153 cu ft Class 'G' 24. Perforations open to Production (MD+TVD of Top and 25. TUBING RECORD Bottom and interval, size and number) S~ZE DEPTH SET (MD) PACKER SET (MD) 2" Gun Diameter, 4 spf, 4-1/2", 12.6#, L-80 9196' 9088' MD TVD MD TVD 10365' - 10445' 8973' - 8961' 10735' - 10760' 8941' - 8937' 26. AC~D, FRACTURE, CEMENT SQUEEZE, ETC. 10775' - 10910' 8934' - 8917' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 10925' - 11063' 8915' - 8898' 11127' - 11148' 8896' - 8896' 2000' Freeze Protected with 30 Bbls of MeOH 11602' - 11680' 8949' - 8953' 11709' - 11730' 8954' - 8955' 27. PRODUCTION TEST Date First Production I Method of Operation (Flowing, gas lift, etc.) April 23, 1999I Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE leAS-OIL RATIO TEST PERIOD I 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 of oil, gas or water. Submit core chips. ~....,-. Form 10-407 Rev. 07-01-80 Submit In Duplicate 29. Geologic Markers ;30. Formation Tests Measured True Vertical Include interval tested, pressure data, all fluids Marker Name Depth Depth recovered and gravity, GOR, and time of each phase. Sag River 9449' 8757' Shublik 9478' 8784' Sadlerochit 9579' 8877' 31. List of Attachments Summary of Daily Drilling Reports, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~,~ ~ Terrie Hubble '~j~, -- Title Technical Assistant III Date U-08A 98-202 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No. / Approval No. INSTRUCTIONS GEUERAL: 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 cementing and the location of the cementing tool. ITEM 2?.' Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. Form 10-407 Rev. 07-01-80 Well: U-08A Accept: 03/17/99 Field: Prudhoe Bay Spud: 03/20/99 APl: 50-029-21136-01 Release: 03/28/99 Permit: 98-202 CTD Unit: Nordic #1 03/18/99 I 9499' MIRU. Raise derrick and wind walls. Re-position rig over tree. Accept rig 13:00 hrs 3/17/99. NU BOPE. MU gooseneck on injector. Pull coil to floor and stab. Initial BOPE test. WHP -0, IA 300. Install relief line (no flowline on U-08a) to U-14. Fill CT w/SW. Liquid pack wellbore with SW while RIH w/3.0" nozzle. Tag whipstock. RU DS cementers. Batch mix and prep to pump 20 bbls Class G cement. 03/19/99 2 9499' DS pump 4 bbls 16 ppg neat Class G cement, 8 bbls w/aggregate, 10 bbls neat. With nozzle above Sag perfs and choke closed, downsqueeze cement. No pressure response. Pull to safety. Circulate on FOC at minimum rate - full returns. POOH. Pressure test plug to 1500 psi for 30 minutes. Held solid. LD cementing BHA. MU window milling BHA. RIH with 3.80" dimple mill on flex it. Mill XN nipple at 9159'. RIH and tag cement at 9375'. Drill hard cement at 20 FPH to whipstock at 9499'. Attempt to mill window and made little progress. POOH to check BHA. Found CTC leaking. Mill had center wear indicating good start on window. Change motor and mill. 03/20/99 3 9510' Install new CTC. MU and RIH with dimple mill #2 on new motor. Mill window 9499~950'4'. POOH. RIH with BHA #3 (UG mill and string reamer). Ream window area and drill new hole to 9510' while displacing to used FIo Pro mud. POOH for drilling BHA. LD milling BHA. MU drilling BHA. Install new CTC. 03~21/99 4 9804' RIH with drilling BHA #4 (1.7 deg motor; M09 bit). Orientor not working. POOH. Change orientor. RIH with BHA #5. Downtime 0900 hfs - 1530 hrs. Drill 9510-9684' building angle. POOH for motor bend. Adjust motor from 1.7 to 1.4°. LD shock sub (blown seal). RIH with BHA #6. Drill from 9684- 9804'. 03122/99 5 10301' Dri119804'-10008'. Soft sand. Need strongermotorforturn. POOH. MU BHA#7 (2.0deg motor; same M09 bit). RIH. Drill right turn 10008-145'. Unable to orient to begin build with 2° motor and Sperry orientor. POOH for motor. Adjust motor to 1.4°, install shock sub. RIH with BHA #8 (same bit). RIH to TD and begin displacement to new Fie Pro mud. Orient to high right to begin 125' TVD invert from 8932' TVD. Drill from 10145-301' 03/23/99 6 10838' Build angle quicker than expected. Backream trip to window. Drill right turn 10301' - 10500' while smoothing out build. Begin left turn and drill 10500' - 10696' (8868' TVD) while continuing planned build. POOH for less aggressive motor to make next turn and stay in the middle of fairway. LD BHA. MU BHA #9 (1.0 deg motor, same M09X bit). RIH to TD. Drill from 10696-10818' and continue build, but made slow progress due to bit bailing. POOH for bit. Change out bit. RIH w/BHA #10 (1.0° motor, DS49 bit). Drill from 10818-838' (8844' TVD) building in invert section. . U-08A, Coil Tubing Drilling Page 2 03/24/99 7 11560' Drill left turn 10838' - 10860' holding inclination. Drill 10860' - 10910' with right TF to stay in requested window. Continue drilling left turn and start drop 10960' - 10994'. Short trip to window. Drill from 10994-11020' continuing build. Begin planned drop at 8813' TVD. Drill from 11020-112' dropping angle. Short trip to window. Drill ahead to 11400'. Short trip to window. Lost 38 bbl on short trip. Drill ahead to 11560', losing 0.3 - 0.5 bpm. 03/25/99 8 12022' Drill from 11560-610' (8863' TVD) slowly dropping angle and losing 0.3-0.5 bpm while drilling. Wiper trip to window. Tie-in, corr -5'. Drill from 11610-785' continuing planned drop to 8900' TVD. Losses increased after wiper trip to 0.5-0.7 bpm, but healed to 0.5 bpm while drilling. Wiper trip to window. Drill from 11785-827' with more agressive drop to revised TVD of 8925'. Taking negative string wt to drill ahead. POOH to streamline BHA. OOH, found leak at CT Connector. Change out motor to 1.25 deg, bit OK, re-run. Install new CT Conn. Pull test and pressure test. TIH, shallow test Sperry tools- OK. Drill ahead, losing 0.3 - 0.5 bpm. 03/26/99 9 11840' RIH after 300' short trip. Could not work past 11840'. Noticed abnormal CT pressure loss after adding fresh mud. POOH to check BHA. Found 2-3/8 CSH pin at top of Sperry equalizer sub had parted leaving equalizer sub, shock sub, motor and bit in hole (17.53'). Perform weekly BOPE test. RIH with straight motor and bit to clean out. Set down on fish at 11840'. Attempt to beat down-no movement. Backream to window for logs. POOH, PU PDS Memory Resistivity tools. TIH, log down from 9300' to 11840'. Log 300' repeat pass. Log up from 11840' at 30 fpm to 9300'. POOH, LD BHA and download memory tools. Hold Safety Meeting. Rig up to run 2 7/8" Liner. 03/27/99 10 11768' PU and TIH wi2 7/8" Liner to 11835'. Reciprocate liner, drop ball to release CTLRT. Ball on seat and sheared at 3550 psi. Displace hole to 2% KCI. Mix and pump 27.3 Bbl cement, drop dart and displace w/2% KCI. Dart on seat and sheared Liner Wiper Plug at 3600 psi. Displace Liner Wiper plug to latch collar. Pressure to 2500 psi. Bleed off pressure and check floats~K. Pressure to 500 psi and pull out of liner top. Circulate and clean up liner top. Circulate while POOH. Got cement contaminated water to surface (total 15 bbl w/slight cement contamination). PU 2.25" nozzle and 2740' of 1 4,4" CS Hydril pipe, TIH to liner top. Cement compressive strength at 0 psi. Circulate at liner top and wait on cement. 03/28/99 11 11768' Circ at TOL, WOC. RIH with nozzle to PBTD, clean. Displace liner to new FIo Pro. POOH for perf guns. Standback CSH workstring. Load perf guns in pipeshed. Hold Safety Meeting. PU perf guns. PU 1 ~,4" CS Hydril, TIH. Tag PBTD at 11768', PU and position bottom shot at 11,730'. Drop 5/8" stee; firing ball. Ball on seat and sheared at 3600 psi indicating guns fired. POOH, stand back I ~,4" CS Hydril. Hold Safety Meeting, LD guns. Perforated Intervals: 10,365-10,445 11,127-11,148 10,735-10,760 10,775-10,910 11,603-11,680 11,709-11,730 10,925-11,063 ~i~hofa§~ U-08A, Coil Tubing Drilling Page 3 03/29/99 12 11768' Finish POOH LD perf guns- all shots fired. Load out guns. RIH with nozzle on CT. Freeze protect wellbore to 2000' with MeOH. Blow down CT with N2. Vac and clean pits. Load out misc equipment. NDBOPE. Scope down derrick. Release Rig 18:00 hrs. 3-28-99 Total time on well 11 days 5 hrs. Created by planner Date plotted: 31-1dar-99 Plot Reference is U-OSA Version ~11. Coarcl[nate* are In feet reference U-08. True Vertical Depths ara reference rkb - MSL = 84.0ft. --- Baker Hughee INTEQ --- 8100 8250 8400 8550 8700 8850 .r. I Structure : Pad U lot' U-08 Field : Prudhoe Bay Location : North Slope, Alaslca Tie on - 17.92 I'nc, 9450.00 Md, 8673.21 Tvd, 0.00 Vs East (feet) -> 900 1050 1200 1350 1500 1650 1800 1950 2100 2250 2400 2550 2700 2850 3000 Tie on - 8673.21 Tvd, 983.85 S, 2655.82 E , ooo I ORIGINAL V 9150 i i i I i I I i I I i I i i i I i I i i I i I I i' i I i I I I i I I I i I I I I 300 150 0 150 300 450 600 750 900 1050 1200 1350 1500 1650 1800 1950 2100 2250 2400 2550 2700 Vertical Section (feet) -> Azimuth 208.28 with reference 985.85 S, 2655.82 E from U-08 1050 1200 1350 500 Cf) 1650 0 1 800 1950 ~-~ I V 2100 2250 2400 255O 2700 B.P. Exploration (True) Pad U U-O8A U-08 Prudhoe Bay North Slope, Alaska SURVEY L ] ST I NG by Baker Hughes !N?EQ Your ref : U-O8A Our ref : svyl07 License :API 50-029-21136-01 Date printed : 31-Mar-99 Date created : 31-Mar-99 Last revised : 31-Mar-99 Field is centred on 708179.340,5930615.440,999.00000,N Structure is centred on 634003.550f5960616.180,999.00000,N Slot location is n70 18 0.554,w148 55 44.892 Slot Grid coordinates are N 5960507.000, E 632217.000 Slot local coordinates are 77.31 S 1788.36 W Projection type: alaska - Zone 4, Spheroid: Clarke - 1866 Reference North is True North B.P. Exploration (True) Pad U,U-OBA Prudhoe Bay, North Slope, Alaska SURVEY LISTING Page 1 Your ref : U-OBA Last revised : 31-Mar-99 Measured Inclin Azimuth Subsea Depth Degrees Degrees Depth R E C T A N G U L A R Dogleg Vert G R I D C 0 0 R D S C 0 0 R D I N A T E S Deg/lOOft Sect Easting Northing 9450.00 17.92 132.40 8673.21 983.85S 2655.82E 1.25 0.00 634889.73 5959570.74 9475.00 17.79 132.73 8697.01 989.04S 2661.47E 0.66 1.89 634895.47 5959565.66 9496.00 17.70 132.92 8717.01 993.39S 2666.16E 0.51 3.50 634900.24 5959561.39 9529.72 24.50 139.30 8748.45 1002~19S 2674.49E 21.26 7.31 634908.72 5959552.74 9559.62 28.21 142.82 8775.24 1012.53S 2682.80E 13.46 12.47 634917.22 5959542,55 9589.07 34.11 145.26 8800.43 1024.87S 2691.72E 20.48 19.11 634926.36 5959530,37 9611.22 38.97 146.70 8818.23 1035.80S 2699.09E 22.28 25.25 634933.92 5959519,57 9647.12 46.23 150.65 8844.64 1056.57S 2711.66E 21,54 37.58 634946.86 5959499,04 9677.82 53.00 153.99 8864.52 1077.28S 2722.49E 23,55 50.69 634958.05 5959478,53 9704.87 58.31 155.43 8879.78 1097.46S 2732.01E 20,12 63.95 634967.93 5959458,52 9737.42 64.07 157.86 8895.46 1123,64S 2743.30E 18,86 81.66 634979.68 5959432,55 9767.92 69.70 158.04 8907.43 1149.63S 2753.83E 18,47 99.56 634990.67 5959406,75 9802.01 75.50 160.32 8917.62 1180.02S 2765.37E 18.17 120.85 635002.75 5959376,57 9834.01 81.39 162.61 8924.03 1209,74S 2775.33E 19,70 142.30 635013.24 5959347,04 9866.42 85.43 166.65 8927.75 1240,77S 2783.85E 17.57 165.59 635022.31 5959316,17 9910.42 87.45 174.38 8930.48 1284,05S 2791.08E 18,12 200.28 635030.31 5959273,03 9961.67 88.15 182.47 8932.45 1335,20S 2792.49E 15.83 244.66 635032.63 5959221.92 9987.59 88,86 185.99 8933.13 1361.04S 2790.57E 13.85 268.32 635031,18 5959196.05 10019.03 90.00 192.67 8933.44 1392.04S 2785.48E 21.55 298.04 635026.64 5959164.96 10051.23 90.79 200.40 8933.22 1422,88S 2776.32E 24.13 329.54 635018.03 5959133.96 10097.23 90.53 213.23 8932.69 1463,85S 2755.62E 27.90 375.42 634998.06 5959092.64 10127.29 90.26 219.91 8932.48 1487.98S 2737.72E 22.24 405.15 634980.60 5959068.20 10156.79 92.11 223.25 8931.87 1510.04S 2718.15E 12.94 433.85 634961.43 5959045.80 10189,52 98.35 227.65 8928.89 1532.89S 2694.94E 23.29 464.97 634938.63 5959022.53 10236.49 103.27 235.91 8920.07 1561.42S 2658.76E 20.20 507.24 634902.97 5958993.37 10283.21 105.38 243.99 8908.49 1584.08S 2619.62E 17.35 545.73 634864.24 5958970.01 10320.76 105.38 251.02 8898.52 1597.92S 2586.19E 18.05 573.76 634831.07 5958955.58 10352.21 103.53 256.83 8890.66 1606.34S 2556.94E 18.83 595.04 634801.98 5958946.64 10395.59 99.67 262.45 8881.93 1613.96S 2515.17E 15.50 621.54 634760.35 5958938.27 10431.09 95.45 267.37 8877.26 1617.08S 2480.13E 18.17 640.88 634725.38 5958934.53 10472.29 92.81 272.82 8874.29 1617.01S 2439.06E 14.67 660.28 634684.31 5958933.87 10507.69 93.08 277.39 8872.47 1613.86S 2403.85E 12.92 674,19 634649.06 5958936.39 10535.29 90.35 275.11 8871.65 1610.86S 2376.43E 12.88 684.53 634621.59 5958938.90 10563.79 89.38 271.77 8871.71 1609.15S 2347.99E 12.20 696.51 634593.13 5958940.11 10594.12 88.51 267.20 8872.27 1609.42S 2317.68E 15.34 711.11 634562.82 5958939.29 10637.31 93.08 262.63 8871.67 1613.25S 2274,68E 14.96 734.85 634519.91 5958934.70 10670.09 99.14 261.40 8868.19 1617.77S 2242.42E 18.86 754.11 634487.73 5958929.60 10714.04 101.51 256.65 8860.31 1625.99S 2199.99E 11.92 781.46 634445.46 5958920.63 10753.61 100.02 252.78 8852.91 1636.24S 2162,50E 10.32 808.25 634408.16 5958909.71 10795.84 97.21 247.69 8846.58 1650.36S 2123,22E 13.65 839.29 634369.15 5958894.90 10837.54 97.18 242.22 8841.36 1667.87S 2085,76E 13.01 872.46 634332.00 5958876.72 10863.66 97.56 242.87 8838.01 1679.81S 2062,77E 2.86 893.86 634309.23 5958864.37 10892.16 96.81 245.76 8834.44 1692.065 2037,29E 10.40 916.73 634283.98 5958851.67 10937.69 97.50 245.13 8828.77 1710.84S 1996,20E 2.04 952.73 634243.23 5958832.17 10990.66 98.60 240.19 8821.35 1734.91S 1949,63E 9.46 996.00 634197.10 5958807.27 11026.96 97.26 238.94 8816.34 1753.13S 1918,63E 5.03 1026.72 634166.43 5958788.51 11062.11 93.21 236.40 8813.13 1771.84S 1889,06E 13.58 1057.21 634137.21 5958769.27 11088.49 91.39 233.66 8812.07 1786.95S 1867,47E 12.46 1080.75 634115.89 5958753.78 11104.00 91.40 232,32 8811.70 1796.28S 1855.08E 8.64 1094.83 634103.67 5958744.23 11130.20 91.40 235.92 8811.05 1811.63S 1833,87E 13.74 1118.40 634082.73 5958728.50 All data in feet unless otherwise stated. Calculation uses minimum curvature method. Coordinates from U-08 and TVDss from rkb - MSL = 84.6ft. Bottom hole distance is 2990.44 on azirmJth 149.71 degrees from wellhead. Vertical section is from tie at S 983.85 E 2655.82 on azimuth 208.28 degrees. Grid is alaska - Zone 4. Grid coordinates in FEET and computed using the Clarke - 1866 spheroid Presented by Baker Hughes INTEQ B.P. Exploration (True) Pad U,U-O8A Prudhoe Bay,North Slope, Alaska SURVEY LISTING Page 2 Your ref : U-OSA Last revised : 31-Mar-99 Measured [nc[in Azimuth Subsea R E C T A N G U L A R Dogleg Vert G R I D C 0 0 R D S Depth Degrees Degrees Depth C 0 0 R D [ N A T E S Deg/lOOft Sect Easting Northing 11172.40 87.80 236.92 8811.35 1834.97S 1798.72E 8.85 1155.61 634048.01 5958704.55 11206.80 85.40 236.12 8813.39 1853.91S 1770.08E 7.35 1185.86 634019.71 5958685.10 11237.80 83.30 233.42 8816.44 1871.70S 1744.88E 11.00 1213.46 633994.84 5958666.86 11277.59 81.50 228.32 8821.71 1896~58S 1714.29E 13.49 1249.86 633964.71 5958641.45 11329.20 78.50 221.00 8830.68 1932.69S 1678.59E 15.13 1298.58 633929.65 5958604.71 11374.20 79.40 216.22 8839.31 1967.19S 1651.04E 10.62 1342.01 633902.72 5958569.72 11422.10 82.40 211.32 8846.89 2006.49S 1624.77E 11.88 1389.08 633877.16 5958529.96 11464.20 82.00 205.62 8852.61 2043.15S 1604.89E 13.45 1430.77 633857.94 5958492.96 11511.60 85.10 202.62 8857.93 2086.12S 1585.65E 9.07 1477.73 633839.47 5958449.65 11564.31 86.14 192.98 8861.97 2136.10S 1569.61E 18.34 1529.35 633824.33 5958399.39 11625.49 87.52 184.75 8865.36 2196.41S 1560.21E 13.62 1586.91 633816.00 5958338.94 11659.06 87.49 180.44 8866.82 2229.90S 1558.69E 12.83 1617.13 633815.08 5958305.42 11703.84 85.52 174.91 8869.55 2274.54S 1560.50E 13.09 1655.58 633817.69 5958260.83 11747.56 89.08 180.25 8871.61 2318.15S 1562.34E 14.67 1693.11 633820.30 5958217.26 11781.59 90.77 182.54 8871.66 2352.17S 1561.51E 8.36 1723.46 633820.08 5958183.24 11812.46 89.82 183.52 8871.50 2383.00S 1559.88E 4.42 1751.38 633819.00 5958152.39 11845.83 88.77 192.67 8871.91 2416.00S 1555.18E 27.60 1782.67 633814.90 5958119.31 11877.18 83.85 191.61 8873.93 2446.57S 1548.61E 16.05 1812.71 633808.86 5958088.63 11943.36 76.34 198.04 8885.31 2509.53S 1531.99E 14.84 1876.02 633793.37 5958025.39 12022.00 76.34 198.04 8903.88 2582.18S 1508.32E 0.00 1951.22 633771.01 5957952.33 All data in feet unless otherwise stated. Calculation uses minimum curvature method. Coordinates from U-08 and TVDss from rkb - MSL = 84.6ft. Bottom hole distance is 2990.44 on azimuth 149.71 degrees from wellhead. Vertical section is from tie at S 983.85 E 2655.82 on azimuth 208.28 degrees. Grid is alaska - Zone 4. Grid coordinates in FEET and computed using the Clarke - 1866 spheroid Presented by Baker Hughes [NTEQ Prudhoe Bay Unit Alaska State Plane Zone 4 PBU_ WOA U Pad, Slot U-08 U-O8A Job No. AKMW90092, Surveyed: 25 March, 1999 SURVEY REPORT 6 April, 1999 ORIGINAL Your Ref: AP1-500292113601 Surface Coordinates: 5960506.97 N, 632217.00 E (70° 18' 00.5532" N, 148° 55' 44.8919" W) Kelly Bushing: 84.64ft above Mean Sea Level Survey Reh svy8453 SERVICES Sperry-Sun Drilling Services Survey Report for U-O8A Your Ref: AP1-$00292113601 Job No. AKMWgO092, Surveyed: 25 March, 1999 Prudhoe Bay Unit Measured Depth (ft) Incl. 9450.00 9496.00 9529.72 9559.62 9589.07 9611.22 9647.12 9677.82 9704.87 9737.42 9767.92 98o2.ol 9834.Ol 9866.42 9910.42 9961.67 9987.59 1 o019.03 10051.23 10097.23 10127.29 10156.79 1 Ol 89.52 10236.49 1 o283.21 17.92o 17.70o 24.500 28.210 34.11o 38.970 46.230 53.000 58.31o 64.070 69.700 75.500 81.39o 85.430 87.450 88.15o 88.860 90.000 90.790 90.530 90.260 92.11o 98.350 103.27o 105.38o Azim. 132.4oo 132.908 139.288 142.808 145.248 146.688 15o.658 153.978 155.418 157.848 158.o28 16o.3o8 162.598 166.638 174.368 182.458 185.978 192.658 200.388 213.218 219.898 223.238 227.638 235.898 243.978 sub'sea Depth 8673.17 8716.97 8748.41 8775.2O 8800.39 8818~18 8844.60 8864.48 8879.74 8895.42 8907.39 8917.58 8923.99 8927.71 8930.44 8932.41 8933.09 8933.40 8933.18 8932.65 8932.44 8931.83 8928.85 8920.02 8908.45 Vertical Depth (ft) 8757.81 8801.61 8833.05 8859.84 8885.03 8902.82 8929.24 8949.12 8964.38 8980.06 8992.03 9002.22 9008.63 9012.35 9015.08 9017.05 9017.73 9018.04 9017.82 9017.29 9017.08 9016.47 9013.49 9004.66 8993.09 Local Coordinates Global Coordinates Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) 983.85 S 2655.82 E 5959570.00 N 634889.72 E 993.39 S 2666.17 E 5959560.65 N 634900.24 E 1002.19 S 2674.50 E 5959551.99 N 634908.71E 1012.52 S 2682.82 E 5959541.81N 634917.21 E 1024.86 S 2691.74 E 5959529.63 N 634926.35 E 1035.79 S 2699.11E 5959518.83 N 634933.91E 1056.56 S 2711.68 E 5959498.29 N 634946.85 E 1077.26 S 2722.50 E 5959477.77 N 634958.04 E 1097.45 S 2732.04 E 5959457.76 N 634967.92 E 1123.63 S 2743.33 E 5959431.79 N 634979.67 E 1149.61 S 2753.86 E 5959405.99 N 634990.66 E 1180.01S 2765.41 E 5959375.80 N 635002.74 E 1209.72 $ 2775.37 E 5959346.27 N 635013.23 E 1240.75 S 2783.90 E 5959315.40 N 635022.30 E 1284.02 S 2791.14 E 5959272.25 N 635030.30 E 1335.17 S 2792.56 E 5959221.14 N 635032.62 E 1361.01S 2790.65 E 5959195.27 N 635031.17 E 1392.02 S 2785.56 E 5959164.18 N 635026.63 E 1422.86 S 2776.41E 5959133.18 N 635018.02 E 1463.83 S 2755.72 E 5959091.85 N 634998.05 E 1487.96 S 2737.82 E 5959067.41N 634980.58 E 1510.03 S 2718.26 E 5959045.01N 634961.40 E 1532.88 S 2695.06 E 5959021.74 N 634938.61E 1561.42 S 2658.88 E 5958992.57 N 634902.94 E 1584.09 S 2619.74 E 5958969.22 N 634864.21E Alaska State Plane Zone 4 PBU_WOA U Pad Dogleg Rate (°/lOOft) Vertical Section (ft) Comment 0.586 21.257 13.459 20.484 22.279 21.555 23.535 2o.116 18.864 18.467 18.17o 19.695 17.569 18.124 15.833 13.849 21.553 24.13o 27.895 22.240 12.94o 23.292 2o.196 17.353 -441.14 -437.89 -434.28 -429.34 -422.94 -417.01 -405.05 -392.29 -379.35 -362.04 -344.53 -323.67 -302.63 -279.74 -245.54 -201.62 -178.15 -148.62 -117.24 .71.38 -41.58 -12.77 18.52 61.11 100.02 TIE-ON SURVEY WINDOW POINT Con,hued... 6 April, 1999 - 10:28 - 2 - DrillQuest Sperry-Sun Drilling Services Survey Report for U-O8A Your Ref: API.500292113601 Job No. AKMW90092, Surveyed: 25 March, 1999 Prudhoe Bay Unit Measured Depth (ft) Incl. 10320.76 1 o352.21 10395.59 10431.09 lO472.29 10507.69 10535.29 10563.79 10594.12 lO637.31 10670.09 lO714.o4 lO753.61 10795.84 10837.54 lO863.66 10892.16 10937.69 10990.66 11o26.96 11o62.11 11 o88.49 111o4.ol 1113o.21 11172.44 lO5.38o lO3.53o 99.670 95.450 92.81o 93.080 90.350 89.380 88.51o 93.080 99.14o lol.51o lOO.O2O 97.21o 97.18o 97.560 96.81o 97.500 98.600 97.260 93.21o 91.39o 91.390 91.410 87.840 Azim. 251.008 256.818 262.438 267.358 272.808 277.378 275.098 271.758 267.188 262.618 261.388 256.638 252.768 247.678 242.208 242.858 245.748 245.118 240.178 238.928 236.388 233.648 232.348 235.898 236.948 Sub, Sea Depth (ft) 8898.48 8890.62 8881.89 8877.22 8874.25 8872143 8871.61 8871.67 8872.23 8871.63 8868.14 8860.26 8852.87 8846.54 8841.31 8837.96 8834.40 8828.73 8821.31 8816.30 8813.09 8812.03 8811.65 8811.01 8811.29 Vertical Depth (ft) 8983.12 8975.26 8966.53 8961.86 8958.89 8957.07 8956.25 8956.31 8956.87 8956.27 8952.78 8944.90 8937.51 8931.18 8925.95 8922.60 8919.04 8913.37 8905.95 8900.94 8897.73 8896.67 8896.29 8895.65 8895.93 Local Coordinates Global Coordinates Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) 1597.94 S 2586.32 E 5958954.79 N 634831.04 E 1606.37 S 2557.07 E 5958945.84 N 634801.94 E 1614.00 S 2515.30 E 5958937.48 N 634760.30 E 1617.12 $ 2480.26 E 5958933.74 N 634725.33 E 1617.05 S 2439.19 E 5958933.08 N 634684.26 E 1613.92 $ 2403.98 E 5958935.60 N 634649.01E 1610.92 S 2376.56 E 5958938.11N 634621.54 E 1609.22 S 2348.12 E 5958939.32 N 634593.07 E 1609.50 S 2317.81 E 5958938.50 N 634562.76 E 1613.33 $ 2274.81 E 5958933.91 N 634519.85 E 1617.86 S 2242.55 E 5958928.82 N 634487.67 E 1626.09 $ 2200.12 E 5958919.84 N 634445.39 E 1636.35 S 2162.63 E 5958908.93 N 634408.09 E 1650.47 S 2123.36 E 5958894.11N 634369.07 E 1667.99 S 2085.90 E 5958875.94 N 634331.92 E 1679.94 S 2062.92 E 5958863.59 N 634309.15 E 1692.20 S 2037.44E 5958850.88 N 634283.90 E 1710.98 S 1996.35 E 5958831.38 N 634243.15 E 1735.06 S 1949.78 E 5958806.48 N 634197.01 E 1753.28 S 1918.79 E 5958787.72 N 634166.34 E 1772.01S 1889.23 E 5958768.48 N 634137.11E 1787.12 S 1867.63 E 5958752.99 N 634115.79 E 1796.45 S 1855.24 E 5958743.44N 634103.56 E 1811.80 S 1834.02 E 5958727.72 N 634082.62 E 1835.15 S 1798.85 E 5958703.75 N 634047.86 E Alaska State Plane Zone 4 PBU_WOA U Pad Dogleg Vertical Rate Section (°/lOOft) (ft) Comment 18.o5o 128.45 18.83o 15O.ll 15.497 177.2o 18.165 197.o6 14.666 217.1o 12.915 231.58 12.884 242.38 12.2o3 254.81 15.336 269.89 14.961 294.26 18.859 314.oo 11.921 341.93 lO.319 369.22 13.648 400.75 13.o14 434.35 2.865 456.02 lO.399 479.17 2.045 515.65 9.465 559.44 5.026 590.49 13.584 621.28 12.462 645.03 8.374 659.23 13.546 683.00 8.812 720.57 ConSnued... 6 April, 1999 - 10:28 - 3 - DrillQuest Sperry-Sun Drilling Services Survey Report for U-O8A Your Ref: AP1-$00292113601 Job No. AKMWgO092, Surveyed: 25 March, 1999 Prudhoe Bay Unit Measured Sub-Sea Vertical Depth Incl. Azim. Depth Depth (ft) (ft) (ft) Local Coordinates Global Coordinates Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) 11206.84 85.430 236.068 8813.31 8897.95 1854.10 S 1770.21 E 5958684.30 N 634019.56 E 11237.81 83.320 233.438 8816.35 8900.99 1871.88 S 1745.04 E 5958666.08 N 633994.71 E 11277.59 81.480 228.258 8821.61 8906.25 1896.77 S 1714.47 E 5958640.66 N 633964.58 E 11329.19 78.540 220.988 8830.57 8915.21 1932.90 S 1678.80 E 5958603.91 N 633929.55 E 11374.16 79.350 216.228 8839.20 8923.84 1967.38 S 1651.27 E 5958568.95 N 633902.63 E 11422.14 82.400 211.278 8846~81 8931.45 2006.75 S 1624.97 E 5958529.12 N 633877.02 E 11464.16 81.950 205.558 8852.54 8937.18 2043.35 S 1605.16 E 5958492.18 N 633857.87 E 11511.56 85.130 202.588 8857.87 8942.51 2086.34 S 1585.96 E 5958448.86 N 633839.42 E 11564.31 86.140 192.968 8861.90 8946.54 2136.37 S 1569.92 E 5958398.56 N 633824.27 E 11625.49 87.520 184.738 8865.29 8949.93 2196.67 S 1560.53 E 5958338.09 N 633815.94 E 11659.06 87.490 180.428 8866.75 8951.39 2230.17 S 1559.02 E 5958304.58 N 633815.02 E 11703.84 85.520 174.898 8869.48 8954.12 2274.81 S 1560.84 E 5958259.98 N 633817.62 E 11747.56 89.080 180.238 8871.54 8956.18 2318.42 S 1562.69 E 5958216.41 N 633820.24 E 11781.59 90.770 182.528 8871.58 8956.22 2352.43 S 1561.87 E 5958182.38 N 633820.02 E 11812.46 89.820 183.508 8871.43 8956.07 2383.26 S 1560.24 E 5958151.53 N 633818.93 E 11845.83 88.770 192.658 8871.84 8956.48 2416.26 S 1555.56 E 5958118.45 N 633814.83 E 11877.18 83.850 191.598 8873.85 8958.49 2446.84 S 1548.98 E 5958087.76 N 633808.80 E 11943.36 76.340 198.028 8885.24 8969.88 2509.79 S 1532.38 E 5958024.52 N 633793.30 E 12022.00 76.340 198.028 8903.81 8988.45 2582.46 S 1508.73 E 5957951.46 N 633770.93 E All data is in feet unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Magnetic Declination at Surface is 27.590° (25-Mar-99) The Dogleg Severity is in Degrees per 100ft. Vertical Section is from Well Reference and calculated along an Azimuth of 209.288° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 12022.00ft., The Bottom Hole Displacement is 2990.88ft., in the Direction of 149.706° (True). Alaska State Plane Zone 4 PBU_WOA UI Pad Dogleg Rate (°/'~OOft) Vertical Section (ft) Comment 7.457 10.855 13.710 14.998 10.543 12.006 13.528 9.152 18.284 13.619 12.827 13.087 14.667 8.363 4.421 27.597 16.052 14.840 0.000 751.11 778.93 815.59 864.55 908.09 955.30 996.90 1043.80 1095.27 1152.46 1182.42 1220.46 1257.59 1287.66 1315.34 1346.42 1376.30 1439.33 1514.28 PROJECTED SURVEY Continued... 6 Apr#, 1999.10:28 - 4 - DrillQuest Sperry-Sun Drilling Services Survey Report for U-O8A Your Ref: API-500292113601 Job No~ AKMW90092, Surveyed: 25 March, 1999 Prudhoe Bay Unit Comments Measured Depth (fi) 9450.00 9496.00 12022.00 Station Coordinates TVD Northings Eastings (ft) (ft) (ft) 8757.81 983.85 $ 2655.82 E 8801.61 993.39 S 2666.17 E 8988.45 2582.46 S 1508.73 E Comment TIE-ON SURVEY WINDOW POINT PROJECTED SURVEY Alaska State Plane Zone 4 PBU_WOA U Pad 6 April, 1999 - 10:28 - 5- DrillQuest TONY KNOWLE$, GOVERNOR ALASK& OIL AND GAS CONSERVATION COMMISSION 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 October 16, 1998 Ted Stagg Coiled Tubing Drilling Engineer BP Exploration (Alaska) Inc. P O Box 196612 Anchorage, AK 99519-6612 Re; Prudhoe Bav Unit U-08A BP Exploration (Alaska) Inc. Permit No: 98-202 Sur Loc: 78'SNL. 17895~rEL, Sec. 19. T11N, R13E, UM Btmhole Loc. 2723'SNL, 4880'EWL. Sec. 19, T11N, R13E, UM Dear Mr. Stagg: Enclosed is the approved application for permit to redrill the above referenced well. The permit to redrill does not exempt you from obtaining additional permits required bx' 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) must be given to allow a representative of the Commission to witness a test of BOPE installed prior to drilling new hole. Notice max' be given by contacti~m field inspector on the North Slope pager at 659-3607. Chairman BY ORDER OF THE COMMISSION dlf/Enclosures CCi Department of Fish & Game. Habitat Section w/o encl. Department of Environmental ConserYation w/o encl. ' STATE OF ALASKA ALASK, . .,)IL AND GAS CONSERVATION C(~MMISSION PERMIT TO DRILL CT Sidetrack well 20 AAC 25.005 la. Type of work [] Drill [] Redrill Ilb. Type of well [] Exploratory [] Stratigraphic Test [] Development Oil [] Re-Entry [] Deepenl [] Service [] Development Gas [] Single Zone [] Multiple ~nne ._ 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration (Alaska) Inc. KBE - 84.64 AMSL Prudhoe Bay Field / Prudhoe 3. Address 6. Property Designation Bay Pool P.O. Box196612, Anchorage, Alaska 99519-6612 ADL 028285 4. Location of well at surface 7. Unit or Property Name 11. Type Bond (See 20 AAC 25.025) 78' SNL, 1789' WEL, SEC. 19, T11N, R13E, UPM Prudhoe Bay Unit At top of productive interval 1061' SNL, 867' EWL, SEC. 20, T11N, R13E, UPM (top 8. Well Numberu_08A Number 2S100302630-277 At total depth 9. Approximate spud date Amount $200,000.00 2723' SNL, 4880 EWL, Sec.19, T11N, R13E 10/19/98 .... 12. Distance to nearest property line11'3. DistanCe to nearest well 4.'Number of acres in property 15. Proposed depth (MD and TVD) ADL 028288 @ 2556'I No Close Approach 2560 11,684, 8925' TVD 16. To be completed for deviated wells 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} Kick Off Depth 9532', 8751'TVDMaximum Hole Anqle 1°°° Maximum surface 3350 psig, At total depth (TVD) 8900'-5300 psig i 8. Casing Program Specifications Setting Depth Size Top Bottom Quantity of Cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include sta~le data) 3-3/4" 2 7/8" 6.16# L-a0 ST-L 2540 9145 8383 11684 8925 ~.f. /f--/~ ¢.o"/-. 19. To be completed for Redrill, Re-entry, and Deepen Operations. ~fl(a0il &GasCons. Present well condition summary Anchorage Total depth: measured 9960 feet Plugs (measured) Bridge plug @ 9708' MD (07/90) true vertical BKB 9243 feet measured 9708 feet Junk(measured) 0R i G![~.~AL~ Effective depth: true vertical BKB 9004 feet Casing Length Size Cemented MD TVD Structural Conductor 110 20x30 8 c.y. 144 144 Surface 2665 13-3/8" 3720 c.f. 2699 2699 Intermediate 9392 9-5/8" 2290 c.f. 9426 8734 Production Liner 777 7" 275 c.f. 9163-9940 8485-9224 Perforation depth: measured 9442'- 9476' (Sag R) 9567'-9597', 9607'-9650', 9660'-9710', 9720'-9755' (Ivishak) true vertical subsea 8665'-8698' (Sag R) 8784'-8963' (four Ivishak intervals) 20. Attachments [] Filing Fee [] Drilling Fluid Program [] Property Plat [] Time vs Depth PIct [] BOP Sketch [] Refraction Analysis [] Diverter Sketch [] Seabed Rep Contact Engineer Name/Number: Ted Stagg 564-4694 Prepared By Name/Number: Theresa Mills 564-5894 21. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ,.~./~~ T~d $1~tqq Title Coiled Tubing Drilling Engineer Date / Commission Use Only Permit Number I APlNumber I ApprovalD&t~ I Seecoverletter ~'¢'-.2.~:2..2. 50- ~, ~.. ¢ ..-- .2. //~.~"-- ,¢ ? / ¢ ~' / ~,~' for other requirements Conditions of Approval: Samples Required [] Yes i~ No Mud Log RequiredE~ Ye~] No Hydrogen Sulfide Measures [] Yes ,,~ No Directional Survey Required ,,~ Yes [] No Required Working Pressure for BOPE [] 2k; [] 3k; ~ 4k; [] 5k; [] 1Ok; [] 15k Other: d¢!!J',i'¢']_l Signed By byorder of Date/' Approved By ~,~,,irl W .!ohn.qtnrl Commissioner the commission Form 10-401 Rev. 12-01-85 Submit In Triplicate BPX U-08a Sidetrack Summary of Operations: U-08 is currently shut in due to declining productivity and high water cut.. The sidetrack, U-08a, will target Zone 4 reserves to be swept by U-03i and U-10i injectors. This sidetrack will be conducted in two phases. Phase 1: Set whipstock and downsqueeze abandonment cement: Planned for 10112198. A mechanical whipstock will be set at 9,532'. Existing perforations will be abandoned with approx. 20 bbls cement. Abandonment cement for Ivishak perforations will be downsqueezed past the mechanical whipstock. Sag R. perfs above the whipstock depth will be cement squeezed. Abandonment cement will be pressure tested to 1500 psi with AOGCC witness. This procedure is described in more detail in the Form 10-403. Phase 2: Mill Window and Drill Directional Hole: Planned for 10119198. Directional drilling coil tubing equipment will be rigged up and utilized to mill the window and drill the directional hole as per attached plan. Mud Program: - Phase 1: Seawater - Phase 2: FIo-Pro (8.8 - 8.9 ppg) Disposal: - No annular injection on this well. - All drilling and completion fluids and other Class II wastes will go to CC-2a for injection. - All Class 1 wastes will go to Pad 3 for disposal. Casing Program: -2 7/8", 6.16#, L-80, ST-L liner will be run from TD to approx. 9,145' MD and cemented with approx. 20 bbls. cement. The well will then be perforated with coil tubing conveyed guns. Well Control: - BOP diagram is attached. - Pipe rams, blind rams and the CT pack off will be pressure tested to 400 psi and to 4000 psi. - The annular preventer will be tested to 400 psi and 2000 psi. Directional - See attachments. - Kick Off: 9,532' MD (8,751' TVD'ss) - TD: 11,684' MD (8,925' TVD ss) - Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. Logging - A Gamma Ray log will be run over all of the open hole section. - A full suite of open hole logs will be conveyed on drilling coil utilizing a side entry sub. RECEIVED OCT 02 1998 N~ka Oil & Gas Cons. Commissim; Anchorage TREE: 4" CIW WELLHEAD: McEVOY ACTUATOR: OTIS -08a Proposed Completion ~'- KB. ELEV = 84.64' BF. ELEV = 49.94' SSSV LANDING NIPPLE I I ( OTIS"DBE")( 3.813" ID) 2011' 13 3/8", 72 #/ft, L-80, BTRS KOP: 2700' MAX ANGLE: 39° @ 6450' 4 1/2", 12.6#/ft, L-80, A/B MOD BTRS TUBING (IPC) TUBING ID: 3.958" CAPACITY: .0152 BBL/FT RECEIVED OCT 0 2 1998 p~~ & Gas Cons. Commission', Anchorage TOP OF I 9163' 7" LINER II 9 5/8", 47#/ft, L-80, BTRS I 9426' I 2 7/8" Cemented Liner Whipstock - Ivishak Abandonment Cement PERFORATION SUMMARY REF. LOG: GEARHART- BHCS TIE IN LOG: GEARHART - CBL '.E SPF INTERVAL /8" 6 /8" 4 /8" 4 /8" 4 /8" 4 7-24-84 7-27-84 9442- 9476' 9567-9597' 9607-9650' 9660-9710' 9720-9755' OPENISQZ'D OPEN/4-7-89 OPEN/8-02-85 OPEN/8-02-85 OPEN/8-02-85 OPEN/8-02-85 PBTD ~ 7", 29 #/fi:, L-80, BTRS 9940'1 GAS LIFT MANDRELS (OTIS W/RA LATCH) N° MD(BKB) TVDss 6 3273' 3265' 5 5152' 4971' 4 7042' 6571' 3 7603' 7057' 2 8337' 7720' 1 8855' 8196' SLIDING SLEEVE I I (OTIS"XA") (3.813" ID) 9003' SEALBORE RECEP. I 9064' "X" PROFILE3.813"ID 9 5/8" BOT PACKER (3H)(3.958"ID) I 9088' 4 1/2" 12.6#/FT L-80 TAILPIPE 4 1/2 .... X" NIPPLE ( OTIS ) ( 3.813" ID) 4 1/2 .... XN" NIPPLE ( OTIS ) ( 3.725" ID) 4 1/2" TBG TAIL ( BOT SOS) (4.00 "ID) I 9131' I 9163' I 9196' (ELMD)I 9192' -- :::::::::::::::::::::::::::::::::::::::::::::::::: 100 deg. U-08 Vertical Section 0 8600 8650 8700 8750 ~8800 885O 8900 8950 9OOO Path Distance(Feet) 500 1,000 1,500 2,000 2,500 3,000 -TSAG ~TSHU Angle @ K.O.= 18 deg MD:9532 TSAD 8,810 IlOO d~e~/ 8~0 de~g. Tot Drld:2152 ft 11684 TD Marker Depths (~Orig Wellbore TSAG I 8,6721ffTVD TSHU I 8,7oo1 TVD TSAD ) 8,7851ff TVD KickOff s,TSlI TVD 9,532 MD Deprtr @KO 2,870 ft IMD KO Pt 9,532I MD New Hole 2152I I Total MD 11,684I TVD TD 8,9251 DLS deg/100 Tool Face Length Curve 1 6 0 30 Curve 2 28 30 288 Curve 3 10 90 299 Curve 4 10 0 99 Curve 5 8 90 339 Curve 6 8 -90 299 Curve 7 10 180 199 Curve 8 6 -90 599 2,152 Drawn: 10/2/98 10:28 Plan Name: Case 301 -50O -1,000 ,o -1,500 -2,000 -2,500 -3,000 1,000 U-08 1,500 2,000 2,500 X distance from Sfc Loc 3,000 IWellName U-08 I CLOSURE Distance 3,154 ft Az 146 deg NEW HOLE E/W (X) N/S (Y) Kick Off 2,692 -953 TD 1,764 -2,615 State Plane 633,981 5,957,892 Surface Loc 632,217 5,960,507 DLS deg/100 Tool Face Length Curve 1 6 0 30 Curve 2 28 30 288 Curve 3 10 90 299 Curve 4 10 0 99 Curve 5 8 90 339 Curve 6 8 -90 299 Curve 7 10 180 199 Curve 8 6 -90 599 2,152 Drawn: 10/2/98 10:28 Plan Name: Case 301 U-08A CT Drilling & Completion BOP 22.5" 2 3/8" CT ~ I i i 110,000 psil Pack-Offl 7 1/16" Annular 7 1/16" 5000 psi Blind/Shear 7 1/16" Pipe/Slip ~ 2 3/8" SWAB OR MASTER VALVE I RECEIVED OCT 0 2 ~998 ~as~ 0il & Gas Cons. Commission:; Anchorage ~PERMIT CHECKLIST FIELD & POOL ___,~'._ COMPANY ,/~X9 WELL NAME f/~'~,'f' ~-~,~ PROGRAM: exp [] dev [] redrll,l~serv [] wellbore seg I, ann. disposal para req,, INIT CLASS ,/~'~ .,,'/"",o.: ? GEOL AREA ~',?',~::~ UNIT// .. .////~'~_~',,~ ON/OFF SHORE ,/~,¢'O" ADMINISTRATION ENGINEERING DAI' IGEOLOGY 1. Permit fee attached ....................... 2. Lease number appropriate ................... 3. Unique well name and number .................. 4. Well Iocaled in a defined pool .................. 5. Well located proper distance from drilling unit boundary .... 6. Well located proper distance from other wells .......... 7. Sufficient acreage available in drilling unil ............ 8. If deviated, is wellbore plat included ............... 9. Operator only affected party ................... 10. Operator has appropriate bond in force ............. 11. Permit can be issued wilhout conservation order ........ 12. Permit can be issued without administrative approval ...... 13. Can permit be approved before 15-day wait ........... 14. Conduclor string provided ................... Y N _ 15. Surface casing protects all known USDWs ........... Y N 16. CMl' vol adequate to circulate on conductor & surf csg ..... Y N 17. CMrvoladequatetotie-inlongstringtosurfcsg ........ ~iN '18. CM r will cover all known productive horizons .......... N 19. Casing designs adequate for C, T, B 8, permafrost ....... 20. Adequate tankage or reserve pit ................. 21. If a re-drill, has a ~10-403 for abandonment been approved... 22. Adequate wellbore separation proposed ............. 23. If diveder required, does it meet regulations .......... 24. Drilling fluid program schematic & equip list adequate ..... ~(~N!N 25. BOPEs. do Ihey meet regulation ..... ,>' - '-< ...... N 26. BOPE press rating appropriate; test to ~"(.~ c.) .. psig. 27. Choke manifold complies w/APl RP-53 (May 84) ........ 28. Work will occur without operation shutdown ........... 29. Is presence of H2S gas probable ................. 30. Permit can be issued w/o hydrogen sulfide measures ..... Y 31. Data presented on potential overpressure zones ....... ,,,~N ~,,,~,,'/,,/') 32. Seismic analysis of shallow gas zones ..... ' ........ 33. Seabed condition survey (if off-shore) ............ ~ Y N' 34. C, ontact name/phone_for weekly progress reporls .... ,,,,,r".. Y N [exploratory only] ~,~ ANNU__.~LAR DISP..~OSAL APPR DATE 35. With proper cementing records, this plan yy~~_ _ -~.. _ (A) will contain waste in a suitable receiving zone; ....... (B) will not contaminate freshwater; or cause drilling wasle... .__, _" .............................................................................................................................. to surface; (C) wil~' ~i0t impair..mechanical integrity of the well used for disposal; YY/N (D) will nol damag~ producing formation or impair recovery from a ~///~_____Y N pool; and (E) will not circumvent 20 AAC 25.252 or 20 AAC 25.412. ! GEoLoGY: ENGINEERING:' uiC/Annular CoMMIssIoN:'/ Comments/Instructions: ........... JDH~--~ RNC co C,o ,. Mcheklisl mv 05129198 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. Sperry-Sun Drilling Services LIS Scan Utility Wed Jul 21 09:22:18 1999 Reel Header Service name ............. LISTPE Date ..................... 99/07/21 Origin ................... STS Reel Name ................ UNKNOWN Continuation Number ...... 01 Previous Reel Name ....... UNKNOWN Comments ................. STS LIS Writing Library. Tape Header Service name ............. LISTPE Date ..................... 99/07/21 Origin ................... STS Tape Name ................ UNKNOWN Continuation Number ...... 01 Previous Tape Name ....... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Scientific Technical Services Physical EOF Comment Record TAPE HEADER PRUDHOE BAY UNIT MWD/MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 2 AK-MW-90092 B.JAHN MCMULLEN/SEV U-08A 500292113601 BP EXPLORATION (ALASKA), INC. SPERRY-SUN DRILLING SERVICES 20-JUL-99 MWD RUN 3 MWD RUN 4 AK-MW-90092 AK-MW-90092 B.JAHN B.JAHN MCMULLEN/SEV MCMULLEN/SEV RECEIVED 1999 , chora e JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 5 AK-MW-90092 B.JAHN MCMULLEN/SEV MWD RUN 6 MWD RUN 7 AK-MW-90092 AK-MW-90092 B.JAHN B.JA/4N MCMULLEN/SEV PARKER JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SECTION: TOWNSHIP: MWD RUN 8 AK-MW-90092 B. JAHN PARKER 19 liN RANGE: 13E FNL: 78 FSL: FEL: 1789 FWL: ELEVATION (FT FROM MSL 0) KELLY BUSHING: 84.60 DERRICK FLOOR: .00 GROUND LEVEL: .00 WELL CASING RECORD OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 10.750 2699.0 2ND STRING 9.625 9426.0 3RD STRING 7.000 9496.0 PRODUCTION STRING 3.750 12022.0 REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTHS (MD) UNLESS OTHERWISE NOTED. 2. ALL VERTICAL DEPTHS ARE SUB-SEATRUE VERTICAL DEPTHS ( S S TVD ) . 3. MWD RUN 1 MADE NO FOOTAGE AND IS NOT PRESENTED. 4. MWD RUNS 2-8 ARE DIRECTIONAL WITH NATURAL GAMMA PROBE (NGP) UTILIZING A SCINTILLATION DETECTOR. 5. DIGITAL DATA IS CORRECTED TO THE PDS GR REFERENCE LOG (3/25/99) WITH KBE OF 84.6'. THIS WELL SIDETRACKED FROM THE U-08 AT 9496'MD, 8717'SSTVD. 6. MWD RUNS 2-8 REPRESENT WELL U-08A with API#: 50-029-21136-01. THIS WELL REACHED A TOTAL DEPTH (TD) OF 12022'MD, 8904'SSTVD. SROP = SMOOTHED RATE OF PENETRATION WHILE DRILLING. SGRD = SMOOTHED GAMMA RAY. $ File Header Service name ............. STSLIB.001 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.000 Comment Record 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 GR 9482.5 11982.0 ROP 9510.5 12011.0 $ BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) - EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH 9482.5 9484.0 9486.0 9496.0 9500.0 9506.0 9509.5 9520.5 9527.0 9531.5 9553.0 9554.5 9555.5 9559.0 9559.5 9562.5 9565.5 9567.0 9576.0 9578.0 9590.0 9592.5 9596.0 9601.0 9603.5 9616.5 9625.5 9629.0 9630.5 9641.5 9651.5 9662.0 9664.5 9666.0 9667.0 9669.0 9681.5 9692.0 9701.5 9703.5 9705.5 9739.0 9741.0 9790.5 9793.5 9797.0 9801.5 9803.0 9809.5 9821.5 9831.0 9853.0 9860.5 9869.0 9893.5 9903.0 GR 9482.0 9483.5 9487.0 9496.0 9499.5 9507.0 9510.0 9521.0 9529.0 9531.0 9553.0 9554.5 9555.5 9559.0 9560.0 9562.5 9565.5 9567.0 9576.0 9578.0 9590.0 9592.5 9596.0 9601.0 9603 5 9616 5 9625 5 9630 0 9631 5 9642 5 9652 5 9663.0 9665.5 9666.5 9668.5 9669.5 9682.0 9692.5 9702.0 9704.0 9706.0 9740.0 9742.5 9791.5 9794.5 9798.0 9802.0 9804.0 9811.0 9823.0 9831.5 9854.0 9861.0 9869.5 9895.0 9904.5 9910.5 9913.0 9923.5 9966.0 9971.0 9988.0 10025.5 10035.5 10038.0 10044.5 10062.5 10064.0 10206.0 10226.5 10264.0 10295.5 10302.0 10340.5 10343.5 10346.5 10351.5 10359.0 10361.0 10385.0 10444.5 10475.0 10512.0 10621.5 10627.5 10636.5 10640.0 10641.5 10656.5 10720.5 10722.5 10728.0 10763.0 10769.0 10775.0 10817.5 10838.5 10880.0 10900.0 10917.5 10926.5 10947.0 10958.0 10964.5 10979.0 11017.0 11027.0 11041.0 11066.0 11076.0 11212.5 11229.5 11249.5 11256.0 11264.0 11280.5 9911.5 9914.5 9926.0 9967.0 9972.0 9987.5 10025.0 10035.0 10038.0 10044.5 10062.5 10065.0 10210.0 10230.5 10269.0 10300.5 10307.0 10346.0 10349.5 10352.5 10357.5 10365.0 10366.5 10391 5 10451 0 10479 5 10521 0 10628 0 10634 0 10643 5 10647.5 10649.0 10664.5 10724.0 10726.0 10732.5 10768.5 10774.5 10780.5 10822.0 10839.0 10882.5 10901.5 10919.0 10928.5 10948.0 10959.0 10965.5 10980.0 11022.0 11032.5 11046.0 11070.5 11080.5 11216.0 11232.0 11252.0 11258.0 11265.5 11282.0 11283.5 11318.5 11356.0 11358.5 11373.5 11486.0 11524.5 11534.0 11549.0 11552.0 11571.0 11580.5 11588.0 11596.0 11600.5 11602.0 11606.5 11614.0 11634.0 11646.5 11676.0 11687.5 11689.5 11695.5 11709.0 11710.5 11715.0 11722.0 11743.5 11750.0 11751.5 11755.5 11769.5 11777.5 11792.5 11795.5 11804.5 11809.5 11811.5 12011.0 $ MERGED PBU MWD MWD MWD MWD MWD MWD MWD $ REMARKS: 11285.0 11320.5 11357.0 11360.0 11375.5 11488.0 11525.0 11535.5 11551 5 11554 5 11575 0 11586 0 11593 5 11600 0 11604 5 11606 0 11611 5 11619 5 11640 5 11653 0 11683 0 11695 0 11697 0 11702 0 11716.5 11719.0 11724.5 11731.5 11753.0 11761.0 11764.0 11768.0 11782.0 11790.0 11805.0 11809.0 11816.5 11820.5 11822.5 12022.0 DATA SOURCE TOOL CODE BIT RUN NO MERGE TOP MERGE BASE 2 9515.0 9684.0 3 9684.0 10008.0 4 10008.0 10145.0 5 10145.0 10701.0 6 10701.0 10821.0 7 10821.0 11829.0 8 11829.0 12022.0 MERGED MAIN PASS. $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD FT/H 4 1 68 4 2 GR MWD API 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEPT 9482.5 12011 10746.8 5058 9482.5 ROP 0.64 1931 122.238 5002 9510.5 GR 19.81 1322.73 44.3026 5000 9482.5 Last Reading 12011 12011 11982 First Reading For Entire File .......... 9482.5 Last Reading For Entire File ........... 12011 File Trailer Service name ............. STSLIB.001 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.002 Physical EOF File Header Service name ............. STSLIB.002 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.001 ComraenE Record FILE H?~ADER FILE N~/MBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 2 DEPTH INCREMENT: .5000 FI LE SUMMARY VENDOR TOOL CODE START DEPTH GR 9482.0 ROP 9511.0 STOP DEPTH 9654.0 9685.0 $ 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: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 20-MAR-99 Insite 3.2up3 7.72, 1.03 MEMORY 9684.0 9515.0 9684.0 24.5 39.0 TOOL NUMBER PCG 42 3.750 3.8 FLOPRO 8.60 .0 9.5 28000 6.8 .000 .000 .000 .000 167.0 .3 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 2 API 4 1 68 4 2 ROP MWD 2 FT/H 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEPT 9482 9684 9583 405 9482 GR 22.48 1322.73 102.21 345 9482 ROP 0.64 1830.18 64.9142 347 9511 Last Reading 9684 9654 9684 First Reading For Entire File .......... 9482 Last Reading For Entire File ........... 9684 File Trailer Service name ............. STSLIB.002 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.003 Physical EOF File Header Service name ............. STSLIB.003 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.002 Comment Record FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 9654.5 9985.0 ROP 9684.5 10010.0 $ LOG HEADER DATA DATE LOGGED: 21-MAR-99 SOFTWARE SURFACE SOFTWARE VERSION: Insite 3.2up3 DOWNHOLE SOFTWARE VERSION: 7.72, 1.03 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: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT) : BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM) : FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN) : EWR FREQUENCY (HZ): REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 MEMORY 10008.0 9684.0 10008.0 53.0 89.0 TOOL NU/~BER PCG 42 3.750 3.8 FLOPRO 8.60 .0 9.5 28000 6.8 .000 .000 .000 .000 154.3 .3 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 3 API 4 1 68 4 2 ROP MWD 3 FT/H 4 1 68 8 3 Name Min Max Mean Nsam DEPT 9654.5 10010 9832.25 712 GR 20.42 124.45 39.3361 662 ROP 8.7 378.5 81.0557 652 First Reading 9654.5 9654.5 9684.5 Last Reading 10010 9985 10010 First Reading For Entire File .......... 9654.5 Last Reading For Entire File ........... 10010 File Trailer Service name ............. STSLIB.003 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.004 Physical EOF File Header Service name ............. STSLIB.004 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.003 Comment Record FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 9985.5 10117.0 ROP 10010.5 10145.0 $ LOG HEADER DATA DATE LOGGED: 21-MAR-99 SOFTWARE SURFACE SOFTWARE VERSION: Insite 3.2up3 DOWNHOLE SOFTWARE VERSION: 7.72, 1.03 DATA TYPE (MEMORY OR REAL-TIME): MEMORY TD DRILLER (FT): 10145.0 TOP LOG INTERVAL (FT): 10008.0 BOTTOM LOG INTERVAL (FT): 10145.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 90.0 MAXIMUM ANGLE: 90.8 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM) : FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 TOOL NUMBER PCG 42 3.750 3.8 FLOPRO 8.80 .0 9.5 28000 6.2 .000 .000 .000 .000 159.0 .3 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 4 API 4 1 68 4 2 ROP MWD 4 FT/H 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEPT 9985.5 10145 10065.2 320 9985.5 GR 20.99 86.66 31.3518 264 9985.5 ROP 5.2 1597 159.895 270 10010.5 Last Reading 10145 10117 10145 First Reading For Entire File .......... 9985.5 Last Reading For Entire File ........... 10145 File Trailer Service name ............. STSLIB.004 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.005 Physical EOF File Header Service name ............. STSLIB.005 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.004 Comment Record FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 5 ~ DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 10117.5 10676.0 ROP 10145.5 10700.0 $ LOG HEADER DATA DATE LOGGED: 22-MAR-99 SOFTWARE SURFACE SOFTWARE VERSION: Insite 3.2up3 DOWNHOLE SOFTWARE VERSION: 7.72, 1.03 DATA TYPE (MEMORY OR REAL-TIME): MEMORY TD DRILLER (FT): 10701.0 TOP LOG INTERVAL (FT) : 10145.0 BOTTOM LOG INTERVAL (FT): 10701.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 88.5 MAXIMUM ANGLE: 105.4 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ TOOL NUMBER PCG 42 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT) : BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM) : FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 3.750 3.8 FLOPRO 8.80 .0 9.5 28000 6.2 .000 .000 .000 .000 .3 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 5 API 4 1 68 4 2 ROP MWD 5 FT/H 4 1 68 8 3 167.0 First Name Min Max Mean Nsam Reading DEPT 10117.5 10700 10408.8 1166 10117.5 GR 19.81 118.97 33.6278 1118 10117.5 ROP 36 1499 126.138 1110 10145.5 Last Reading 10700 10676 10700 First Reading For Entire File .......... 10117.5 Last Reading For Entire File ........... 10700 File Trailer Service name ............. STSLIB.005 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.006 Physical EOF File Header Service name ............. STSLIB.006 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.005 Comment Record FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 6 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 10676.5 10797.0 ROP 10700.5 10821.0 $ LOG HEADER DATA DATE LOGGED: 23-MAR-99 SOFTWARE SURFACE SOFTWARE VERSION: Insite 3.2up3 DOWNHOLE SOFTWARE VERSION: 7.72, 1.03 DATA TYPE (MEMORY OR REAL-TIME): MEMORY TD DRILLER (FT): 10821.0 TOP LOG INTERVAL (FT) : 10701.0 BOTTOM LOG INTERVAL (FT): 10821.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 97.2 MAXIMUM ANGLE: 101.5 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): TOOL NUMBER PCG 42 3.750 3.8 FLOPRO 8.70 MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 .0 9.5 28000 6.2 .000 .000 .000 .000 .3 171.0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 6 API 4 1 68 4 2 ROP MWD 6 FT/H 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEPT 10676.5 10821 10748.8 290 10676.5 GR 22.19 107.44 38.4284 242 10676.5 ROP 28 642 186.277 242 10700.5 Last Reading 10821 10797 10821 First Reading For Entire File .......... 10676.5 Last Reading For Entire File ........... 10821 File Trailer Service name ............. STSLIB.006 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.007 Physical EOF File Header Service name ............. STSLIB.007 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.006 Comment Record FILE HEADER FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 7 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH ROP 10791.0 GR 10797.5 $ 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 11829.0 11799.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM) : FLUID LOSS (C3) : RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: 24-MAR-99 Insite 3.2up3 7.72, 1.03 MEMORY 11829.0 10821.0 11829.0 78.5 98.6 TOOL NUMBER PCG 42 3.750 3.8 FLOPRO 8.60 .0 9.0 27O00 7.2 .000 .000 171.0 MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN) : EWR FREQUENCY (HZ): REMARKS: Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 .000 .000 .3 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 7 API 4 1 68 4 2 ROP MWD 7 FT/H 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEPT 10791 11829 11310 2077 10791 GR 21.93 120.21 38.001 2004 10797.5 ROP 13 1931 141.651 2077 10791 Last Reading 11829 11799 11829 First Reading For Entire File .......... 10791 Last Reading For Entire File ........... 11829 File Trailer Service name ............. STSLIB.007 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.008 Physical EOF File Header Service name ............. STSLIB.008 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.007 Comment Record FILE HEADER FILE NUMBER: 8 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 8 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH ROP 11780.0 GR 11799.5 $ 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 12022.0 11993.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT) : BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): 25-MAR-99 Insite 3.2up3 7.72, 1.03 MEMORY 12022.0 11829.0 12022.0 76.3 89.8 TOOL NUMBER PCG 42 3.750 3.8 FLOPRO 8.70 .0 8.5 29000 8.0 .000 .000 .000 .000 167.0 TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 .3 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 8 API 4 1 68 4 2 ROP MWD 8 FT/H 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEPT 11780 12022 11901 485 11780 GR 22.71 167.65 76.1114 388 11799.5 ROP 13 917 87.9175 485 11780 Last Reading 12022 11993 12022 First Reading For Entire File .......... 11780 Last Reading For Entire File ........... 12022 File Trailer Service name ............. STSLIB.008 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 99/07/21 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.009 Physical EOF Tape Trailer Service name ............. LISTPE Date ..................... 99/07/21 Origin ................... STS Tape Name ................ UNKNOWN Continuation Number ...... 01 Next Tape Name ........... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name ............. LISTPE Date ..................... 99/07/21 Origin ................... STS Reel Name ................ UNKNOWN Continuation Number ...... 01 Next Reel Name ........... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File