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Pages NOT Scanned in this Well History File XHVZE This page identifies those items that were not scanned during the initial scanning project. They are available in the original file and viewable by direct inspection. lC{ (..¢ "© ~5"~ile Number of Well History File PAGES TO DELETE Complete RESCAN [] Color items - Pages: Grayscale, halftones, pictures, graphs, charts- Pages: Poor Quality Original- Pages: [] Other- Pages: DIGITAL DATA [] Diskettes, No. [] Other, No/Type OVERSIZED [] Logs of various kinds [] Other COMMENTS: Scanned by: Bevedy~Vincent Nathan Lowell [] TO RE-SCAN Notes: Re-Scanned by: Bevedy Dianna Vincent Nathan Lowell Date: Is~ • Yfi t STATE OF ALASKA °: ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION O RECOMPLET e ' T AND L' 7',--i. ' ' 1a. Well Status: 0 Oil 0 Gas 0 SPLUG 0 Other bandoned spender �,� a VI b. Well Class 20AAC 25.105 20AAC 25.110 t°0°" " ❑Exploratory 0 Stratigraphic 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Comp= '.ns - . '®Development 0 Service 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. • 5/21/2013 ' 196-095 • 312-430 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 5/10/1996 ' 50-029-22672-01-00 - 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 5/25/1996 PBU D-31A • 1945'FSL, 1068' FEL, Sec.23,T11 N, R13E 8. KB(ft above MSL): 82.93' 15.Field/Pool(s) 1 Top of Productive Horizon: 1326'FSL, 2406' FEL, Sec.23,T11 N, R13E GL(ft above MSL): 45.3' Prudhoe Bay Field/Prudhoe Bay • Total Depth: 9. Plug Back Depth(MD+TVD) Oil Pool 3828'FSL, 1232'FEL, Sec.23,T11 N, R13E 9398' 8924' • 4b. Location of Well(State Base Plane Coordinates,NAD: 10.Total Depth(MD+TVD) 16. Property Designation: Surface: x- 654122 y- 5957666 Zone- ASP4 11848' 9031' ', ADL 028285 • TPI: x- 652797 y- 5957021 Zone- ASP4 ' 11.SSSV Depth(MD+TVD) 17. Land Use Permit: Total Depth:x- 653917 y- 5959546 Zone- ASP4 None 18.Directional Surve : 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): y ❑Yes ®No N/A ft MSL 1900'(Approx.) (Submit electronic and printed information per 20 AAC 25.050) ( pP ) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22.Re-Drill/Lateral Top Window MD/TVD: MWD/LWD/GR/RES/FE/DIR/CNL 3624' 3607' • 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT CASING WT.PER FT. GRADE ToP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# H-40 Surface 110' Surface 110' 30" 260 sx Arctic Set(Approx.) 10-3/4" 45.5# L-80 35' 3216' 35' 3199' 13-1/2" 1080 sx PF'E',375 sx Class'G', 260 sx PF'E' 7-5/8" 29.7# S-95/13Cr80 36' 9781' 36' 9033' 9-7/8" 493 sx Class'G' 4-1/2" 126# L-80 9639' 11848' 9016' 9031' 6-3/4" 389 sx Class'G' 24. Open to production or injection? 0 Yes ®No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ (MD+TVD of Top&Bottom;Perforation Size and Number): ND) 4-1/2", 12.6#, 13Cr80/L-80 9424' 9258'/8846' 9366'/8907' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. WAS HYDRAULIC FRACTURING USED DURING COMPLETION?❑Yes ®No its! dx S NS AY bt -h • j'4 DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED See Attached 27. PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc Not on Production N/A Date of Test Hours Tested Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No Sidewall Core(s)Acquired? 0 Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. --\\w None RBDMS JUN 14 2U13 Form 10-407 Revised 10/2012 CONTINUED ON REVERSE / Submit Original Only VZ- // q- // 4-- ,A 9,4y , . •'l ✓1 29. GEOLOGIC MARKERS(List all formations anc ;ers encounter 30. FORMATION TESTS NAME MD TVD Well Tested? 0 Yes ®No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Sag River 8880' 8578' None Shublik 8867' 8566' • Top of Sadlerochit 8957' 8643' Formation at Total Depth: 31.List of Attachment Summary of Pre-Rig Work, Summary of Daily Drilling Reports,Well Schematic Diagram 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Brad Gorham,564-4649 Email: Bradley.Gorham@bp.com Printed Name: Joe Lastu .' Title: Engineering Team Leader - I Signature: Phone 564-4091 Date: tol 1?JII3 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. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. 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 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 10/2012 Submit Original Only WELL NAME: D-31A 26. Acid, Fracture, Cement Squeeze, Etc. Depth Interval (MD) Amount & Kind of Material Used 9440' Set Whipstock 9725' - 9440' 31 Bbls Class 'G' 9368' - 9372' Tubing Punch 9315' - 9440 ' 4 Bbls Class 'G' 9315' - 9448' Mill /Cleanout Cement 9398' Set 2nd Whipstock D-31A, Well History (Pre Rig Sidetrack, Part 1 ) Date Summary 11/17/12 T/I/0=1550/750/320 Temp= 135 PPPOT-T(PASS) Pre CTD. PPPOT-T:Stung into test void (2300 psi.). Bled void to 0 psi. Functioned LDS all moved freely(3/4"). Pumped through void,good returns. Pressured test void to 5000 psi.for 30 min.test. Lost 0 psi. in 30 min. (PASS). Bled void to 0 psi. 11/27/12 RAN 20'x 3.70" DUMMY WHIPSTOCK TO 9,605'SLM/9645'MD(lightly set down between 9,035'- 9,150'slm). DRIFTED TO XN NIPPLE @ 9372'SLM/9412'MD W/3.80"CENT. SAT DOWN @ 9222' SLM,9345'SLM. DEVIATED&DIFFICULT TO GET TO XN NIPPLE. 12/05/12 T/I/0=1550/520/220 Temp=Hot Assist E-line(Load TBG) Pump 5 bbls neat meth, 292 bbls 1%kcl,5 bbls neat meth,&38 bbls diesel down tbg to load&freeze protect. Freeze protect flowline with 2 bbls neat meth, 54 bbls crude, 5 bbls neat meth, 85 bbls crude, &3 bbls neat meth FWHP's=0/50/20 Tags hung Pad Op notified/SV,WV=s/i SSV, MV=O IA, OA=OTG. 12/05/12 INITIAL T/I/O=0/0/0 PSI. CURRENTLY RUNNING IN W/WELLTEC STROKER&MILLER TOOL TO MILL XN NIPPLE(MILL O.D. =3.804"). 12/06/12 ATTEMPTED TO MILL XN.WELLTEC MILLING TOOL MALFUNTIONED. UNABLE TO FIX DOWNHOLE OR ON SURFACE (XN NOT MILLED). DECISION MADE TO LET COIL MILL XN WHILE DOING CEMENT SQUEEZE. RAN CORRELATION LOG W/GAMMA/CCL PRIOR TO SETTING WHIPSTOCK. RAN IN W/4 1/2"x 7 5/8"BAKER TT WHIPSTOCK. SET TOP @ 9440' ELMD(ORIENTATION SET @ 2 DEG LOHS-ACCEPTABLE RANGE OF ORIENTATION =±30 DEG OF HIGH SIDE(0°)). ****TWO RA TAG ARE INSTALLED 10'FROM TOP OF WHIPSTOCK(9450')****. CORRELATED TO THE SPERRY MWD LOG DATED 27-MAY-1996'. FINAL T/I/O=0/0/0 PSI. 12/08/12 CTU#9 1.75"Coil Tubing-Job scope=Mill XN, cement squezze. MIRU, MU BOT left handed milling assembly with a 3.8"parabolic mill and 3.77"string reamer.Tagged @ 9358'ctm. backed up to 9345'to get a milling pattern started.Worked past this depth and tagged at 9372 up depth. Not sure on depth. Talk with CTD co. man and ODE and decide to go forward with cement job and do a correlation with cement nozzle. Flag pipe at 9365'ctm and POOH. Freeze protect coil with diesel due to a bad load of 60/40 methanol. MU cement BHA w/2.27"ball drop JSN and RIH. 12/09/12 CTU#9 w/1.75"od ct.Job Objective: Mill XN, Cement Squeeze. «» Tag whipstock tray at 9421'ctm. Believe that XN was milled (see log for details). Re-set depth mid-tray of whipstock and kill well with 100 bbls of 1% KCI and 110 bbls of diesel. Perform injectivity test: 1 bpm @ 280psi, 1.5bpm @ 330psi,2bpm @ 375psi,2.5bpm @ 430psi, 3bpm @ 490psi. Pumped 31 bbls of 15.8 ppg class G cement. Pushed 20 bbls behind pipe.Was not able to build squeeze pressure. Left cement from the bottom of the whipstock down.Jetted the whipstock,5 nipples and station#1 with biozan and POOH without chasing to surface. Estimated TOC at 9444'elm. Freeze protected well from 2500'to surface with 60/40 methanol. «» 12/10/12 T/I/O=VAC/28NAC.Temp=SI.WHP's(Pre Cement PT).AL SI @ casing valve.Tbg FL @—312'(5 bbls). SV,WV, SSV=C. MV=0. IA, OA=OTG. NOVP. 1800 hrs. 12/11/12 TEST MIT-T PASS TO 500 PSI Pumped 5.5 bbls Diesel to achieve 500 psi MIT-T test pressure.TBG lost 17 psi in the 1st 15 min. and 15 psi in the 2nd 15 minutes for a total loss of 32 psi over the 30 min.test. Bled—1 bbls back. Notified pad op upon departure. FWHP= 0/25/0SV/WV/SSV=C. M=0. IA/OA=OTG. Page 1 of 3 D-31A, Well History (Pre Rig Sidetrack, Part 1 ) Date Summary 12/12/12 T/I/O=Vac/1Nac Conducted PJSM; Start barrier list; Barriers=SSV&MV; P.T. (LTT)down on MV&SSV to 300 psi/3500 psi independently for 5 min. each (passed); Removed companion tapped blind flange& installed un-tapped blind flange(torqued to API spec.); Installed Lubricator&P.T. (charted)against SSV to 300 psi/5000 psi (passed): Set 4"CIW TWC#288 @ 102"w/1-2'ext.;Torqued all tree flange nuts/studs to API spec. (see log); P.T.tree(charted Shell)to 300 psi/5000 psi (passed,tests downloaded into U-drive); Pre Nordic 1. 12/13/12 T/I/O=TWC/7Nac.Temp=SI.WHPs(Pre-rig). No AL,flowline or wellhouse. Bled IA from 7 psi to 0 psi in 2 mins(gas). SV=Unk.WV, SSV=C. MV=O. IA&OA=CTG(as found). 12/15/12 T/I/O=TWC/0/0. Barriers=TWC, SSV, SV. Start barriers list. Conducted PJSM with rig crew prior to start of job. RU lubricator with 3-5'ext.and CIW pulling tool. Rig Pt'd lubricator to 300 psi. and 3500 psi. for 5 min. (passed). Pulled 4"CIW TWC#288,tagging at 135". RDMO. Job complete. 12/17/12 T/1/0=0/0/0 Conduct PJSM; Start Barrier list; Barriers= Kill Weight fluid; Set 4"CIW"H"BPV#253 W/T- Bar @ 24.00' Nordic 1 RDMO. 12/29/12 T/I/O=0/160/0. Conduct PJSM. Barriers=SV&SSV. Start Barrier List.Verified by applying 500 psi. against SV through tree cap. LTT passed. Rigged up lubricator with CIW pulling tool. Pt'd lubricator to 200-300 psi low and 3500 psi high for 5 min.each (passed). Pulled 4"CIW BPV#253 using 1-1 ext. tagging @ 114".While retracting lubricator encountered an obstruction at SSV level.Applied heat to valve and was able to fully retract lubricator. Rigged down lubricator and attached tree cap. Pt'd tree cap to 500 psi. (passed).Job1 complete. 12/29/12 INITIAL T/I/O=0/75/0 PSI. INITIAL VALVE POSITIONS:WING/SSV/SWAB=CLOSED, MASTERNALVES TO CASING=OPEN. RIGGING UP. 12/30/12 RIH W/EV VIDEO CAMERA, IMAGE APPEARED TO GET DIRTY AT 50'. RETURNED TO SURFACE TO FIND CAMERA COVERED IN SWAB GREASE. RIH W/JUNK BASKET&3.7"GAUGE RING TO 150'.JUNK BASKET RETURNED FULL OF GREASE. RIH W/JUNK BASKET&3.7"GAUGE RING TO 250'.JUNK BASKET RETURNED SMALL AMOUNT OF GREASE. RIH W/EV VIDEO CAMERA, IMAGE OF MURKY FLUID ALL THE WAY TO BOTTOM AT 9410'. SETTLED OUT SOLIDS AT BOTTOM, UNABLE TO SEE WHIPSTOCK OR ANY JEWELRY. SWAB/SSV CLOSED. FINAL T/I/O=0/75/0 PSI. 01/12/13 CTU#9 w/1.75"ct:Job objective : Log with video camera. MIRU, Rih with CTC, DFCV,2 stingers, 2.25" DJN.Tagged whipstock at 9381'CTM. Circulated KCI and Powervis sweeps on whipstock while reciprocating. Circulated 30 bbls of Filtered freshwater on whipstock. Pickup 20'to 9361'E/9418'M. Paint white/red stripe flag. Finished laying in 140 deg filtered freshwater at 80%. Layed in 60/40 Meth/water for freeze protect.Well freeze protected to 2900'. Down stack everything. Go on weather hold. 01/16/13 CTU#9 1.75"Coil Job Objective: Memory Video Log. Dig unit and associated equipment out post blow. 01/17/13 CTU#9 1.75"CT Job Objective: Memory Video Log. Swap out BOP'S for monthly. Perform function test &draw down test. Full body pressure test BOPs. RIH EV down hole camera max OD 2.50". Log up& down passes from 9380'to 9402' POOH both static and pumping filtered fresh water. Freeze protect coil w/37 bbls and well w/38 bbls 60/40 methanol.At surface ck for data. No data,camera damaged allowing fluid to enter camera/memory/battery sub. RIH w/second 2.50" EV camera. Run into egged pipe at 1200'. POOH. Cut 1300'of CT. Page 2 of 3 D-31A, Well History (Pre Rig Sidetrack, Part 1 ) Date Summary 01/18/13 CTU#9 1.75"Coil Job Objective: Memory Video Log. RIH w/EV down hole camera max OD 2.92" Tagged up on and un able to get past unique overshot POOH.Tried to down load DATA from second camera and no luck camera has failed RDMO. 01/19/13 CTU#9 w/1.75"CT.Job Scope:Video Log. RDMO. 01/25/13 INITIAL T/I/O=0/85/0 PSI. RIH WITH VIDEO TOOLSTRING.WENT DOWN TO 15'BELOW THE TT AND FOUND TOP OF WHIPSTOCK. FOUND MILL MARKS DOWN PAST THE RETRIEVING TOOL SLOT. MILL WAS CUTTING INTO THE WHIPSTOCK AND STARTED TO TOUCH THE CASING.TOOK PICTURES. POOH. FINAL T/I/O=0/85/0 PSI. Page3of3 411 North America-ALASKA-BP Page 1 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/11/2012 00:00 - 06:00 6.00 MOB N PRE GREASE ALL VALVES IN REEL HOUSE,PIPE SHED AND ON STACK AND PERFORM LIGHT . MAINTENANCE ON RIG. 06:00 - 18:00 12.00 MOB N PRE STRIP AND WELD AREAS ON PIT TRANSFER LINE. REBUILD CHOKE VALVE#12. DEMOB ALL SPARE PUPS FROM RIG. LOAD FREIGHT THAT ARRIVED AND OFFLOAD MATERIALS FOR SENDING BACK TO STORES AND YARD FROM RIG. GREASE ALL VALVES ON RIG. REPAIR AUTO SPOOLER ON HYDRAULIC WINCH. 18:00 - 00:00 6.00 MOB N PRE STRIP DOWN SHAKER AND INSPECT WEAR POINTS. GRIND AND CHIP TO PREPARE FOR PAINTING. CLEAN AND INSPECT SPARE TEXAS OIL TOOL(TOT)RAMS. CONDUCT MAINTENANCE ON BOP TEST PUMP. REPORT FROM CH2MHILL IS THAT CRANE CONDUCTING SITE PREP HAS MECHANICAL FAILURE AND IS ROLLING OFF LOCATION FOR REPAIR OR SWAP OUT. 12/12/2012 00:00 - 06:00 6.00 MOB N PRE CONDUCT MAINTENANCE ON SHAKER. DEMOB OUTER STAIRS FROM RIG IN PREPARATION FOR MOVE. DRILL SITE MAINTENANCE AND CH2MHILL BACK ON LOCATION AT 0145 HRS TO RESUME PAD PREP OVER D-31. • 06:00 - 18:00 12.00 MOB N PRE CONTINUE MAINTENANCE RIG&SAT CAMP ARE READY TO MOVE VALVE CREW IS ALMOST DONE TESTING THE TREE TOOL SERVICES WILL START LEVELING AS SOON AS THE VALVE CREW IS OUT OF THE WAY 18:00 - 19:00 1.00 MOB N PRE VALVE CREW COMPLETED TESTING TREE. MEET WITH TOOL SERVICE,DISCUSS GRADE OF PAD. CONDUCT PRE-SPUD WITH CREW. 19:00 - 00:00 5.00 MOB N PRE BEGIN GRADER AND GRAVEL OPERATIONS. RIG CREWS CONTINUING WITH PAINTING OF SHAKER AREA. MOVE WELDING SHOP TO OTHER SIDE OF PAD. PREP HANDLING EQUIPMENT FOR LINER. WARMING UP MOVING SYSTEM FOR MOVE. 12/13/2012 00:00 - 02:00 2.00 MOB N PRE MONITORING MOVING SYSTEM WHILE IT IS WARMING UP. TRUCKS IN POSITION FOR MOVING CAMP. PLACE HEATER ON CUTTINGS BOX TO PREPARE FOR VAC TRUCK AND EVENTUAL MOVE. 02:00 - 03:00 1.00 MOB P PRE INSPECT PREP AREA FOR MOVING RIG OVER WELL. DIRECT FINISHING GRADING AND LEVELING. VERIFY GAUGE PRESSURES AT 0 PSI,CONFIRM CLOSED MANUAL VALVES ON TREE. 03:00 - 03:30 0.50 MOB P PRE PLACE T-MATS AROUND CELLAR Printed 6/3/2013 3:29:07PM • North America-ALASKA-BP Page 2 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 04:00 0.50 MOB P PRE PJSM ON RIG MOVE. DISCUSS RISKS ASSOCIATED WITH COLD TEMPS(-31°). ASSIGN POSITIONS,EMPHASIZE STOP, DISCUSS ACCESS ROAD THAT RIG WILL BE MOVING DOWN. ENSURE EVERYONE HAS PROPER GEAR. • 04:00 - 04:15 0.25 MOB P PRE CONDUCT LAST WALK AROUNDS,PULL OFF D-19 WITH NO ISSUES. MOVE LOADER AND SPOTTER OUT IN FRONT OF RIG. • 04:15 - 05:00 0.75 MOB P PRE MOVE RIG ACROSS PAD AND DOWN ACCESS ROAD TO D-31 05:00 - 09:00 4.00 MOB N RREP PRE RIG WILL NOT CLIMB THE LITTLE SLOPE ON THE ACCESS ROAD TO GET ON THE PAD. TROUBLESHOOT DRIVE SYSTEM. UPDATE GIVEN TO AOGCC REP AT 0530 HRS OF PROBLEMS WITH RIG. 09:00 - 10:00 1.00 MOB N RREP PRE TRY WARMING UP DRIVE SYSTEM,BACK UP BACK TO THE PAD WE CAME OFF OF THEN TRY AGAIN • 10:00 - 10:30 0.50 MOB N RREP PRE 3 ATTEMPTS FAILED TO MAKE IT ONTO THE PAD,MOVE RIG BACK TO THE FRONT PART OF D-PAD AND CALL NORDIC OFFICE TO SEE IF THEY WANT TO CHANGE DRIVE PUMPS OR CALL FOR CATS 10:30 - 10:45 0.25 MOB N RREP PRE NORDIC WANTS TO CALL FOR CATS TO PULL THE RIG ONTO THE PAD NOTIFY CTD SUPERINTENDENT AND DRILLING HSE ADVISOR TO PERFORM A LEVEL 2 RISK ASSESSMENT 10:45 - 16:30 5.75 MOB N RREP PRE FURTHER TROUBLESHOOTING FOUND A BAD HYDRAULIC MOTOR.R&R MOTOR,SUSPEND L2RA FOR NOW 16:30 - 18:00 1.50 MOB N RREP PRE HYDAULIC MOTOR REPLACED START ROLLING TIRES TO WARM DRIVE SYSTEM. CONDUCT CREW CHANGE OUT. 18:00 - 19:00 1.00 MOB N RREP PRE CONDUCT FINAL INSPECTION ON MOVING SYSTEM WHILE TAKING ON FUEL. PJSM ON MOVING RIG TO D-31. 19:00 - 20:30 1.50 MOB P PRE MOVE RIG ACROSS PAD TO D-31. WORK RIG UP INCLINE WITH NO ISSUES. POSTION RIG TO MOVE OVER D-31. MOVE OVER WELL. CLOSE DOORS,SET RIG DOWN. RIG ACCEPT AT 2030 HRS. 20:30 - 22:30 2.00 MOB P PRE STAGE SUPPORT EQUIPMENT. PREPARE RIG FOR OPERATIONS. MOBILIZE ADAPTER FLANGE TO NU BOP TO TREE. STAGE CUTTINGS BOX AND TIGER TANK. UPDATE GIVEN AT 2220 HRS TO AOGCC REP OF TENTATIVE BOP TEST TIME OF 0400 HRS. 22:30 - 00:00 1.50 MOB P PRE CONDUCT LEAK TIGHT PRESSURE TEST AGAINST TWO BARRIER VALVES PER WELL PLAN CRITERIA TO REMOVE SWAB CAP. 12/14/2012 00:00 - 01:00 1.00 BOPSUR P PRE TIGER TANK HARD LINE RIGGED UP AND TESTED TO 4000 PSI. BEGIN TO NU BOP ADAPTER FLANGE SPOOL TO TREE. RE-BUILD KILL LINE CHECK VALVE. Printed 6/3/2013 3:29:07PM • North America-ALASKA-BP Page 3 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:00 - 04:30 3.50 BOPSUR P PRE CONTINUE WITH NU OF BOP ADAPTER FLANGE SPOOL TO TREE. INSTALL HOT TUB AROUND BOP LUBRICATOR EXTENSION. OBTAIN RKB MEASUREMENTS. NU COMPLETE. RECEIVED NOTIFICATION FROM AOGCC THAT WITNESS OF TEST WAS WAIVED. 04:30 - 05:15 0.75 BOPSUR P i PRE 'MOBILIZE TEST JOINT,FUNCTION TEST RAMS BEFORE FLUID PACKING STACK FOR BODY TEST. 05:15 - 06:00 0.75 BOPSUR P PRE STRING OUT LINES,FLUID PACK STACK 06:00 - 06:30 0.50 BOPSUR P j PRE CREW CHANGE 06:30 - 14:00 7.50 BOPSUR P PRE PERFORM ACCUMULATOR DRAW DOWN TEST. -STARTING ACCUMULATOR PRESSURE= 3,050 PSI -FINAL PRESSURE AFTER FUNCTIONING ALL PREVENTERS AND HCR=2,050 PSI -18 SEC TO BUILD 200 PSI,107 SEC TO FULL PRESSURE. -3 NITROGEN BACKUP BOTTLES WITH 1900 PSI. PERFORM FULL BODY SHELL TEST TO 250PSI LOW AND 4,500PSI HIGH.GOOD TEST. CHART RECORDER IS BEING USED AND THE ELECTRONIC DATA IS BEING RECORDED ON THE CTDS"SHUT IN&WHP"SENSORS 14:00 - 16:30 2.50 BOPSUR P PRE CLEAR RIG FLOOR OF BOP TEST EQUIPMENT. PREPARE FOR TESTING INNER REEL VALVE 16:30 - 17:00 0.50 BOPSUR N PRE WORKING ON FLOW CONTROL VALVE ON PUMP FOR HYDRAULIC WINCHES 17:00 - 17:30 0.50 BOPSUR t PRE CONDUCT RIG EVAC DRILL AND MUSTER AT PRIMARY MUSTER AREA. CONDUCTAAR AND REVIEW RESPONSE PROCEDURES. MOBILIZE BACK TO RIG. 17:30 - 20:30 3.00 RIGU P PRE PICK UP INJECTOR,STAB ON AND PREPARE FOR DISPLACING METHANOL IN COIL. DISPLACE METHANOL,PUMP FRESH WATER AROUND. PRESSURE TEST AGAINST INNER REEL VALVE. GOOD TEST. PUMP E-LINE BACK. POP-OFF,INSPECT FOR E-LINE. ALL GOOD. STAB BACK ON,BLOW BACK WITH AIR TO PREVENT FREEZE UP. -CONCURRENT OPS:FUNCTION TEST FLOW CONTROL VALVE. PULL TEST TO 3000 POUNDS,GOOD TEST WITH NO SLACK OFF ONCE HYDRAULICS SHUT DOWN. 20:30 - 21:00 0.50 RIGU P PRE PJSM FOR CHROME MANAGEMENT. CONDUCT H2S RIG EVACUATION DRILL, MUSTER AT PRIMARY MUSTER AREA. CONDUCT AAR AND DISCUSS EMERGENCY RESPONSE PROCEDURES. GIVE ALL CLEAR. Printed 6/3/2013 3:29:07PM North America-ALASKA-BP Page 4 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 00:00 3.00 RIGU P PRE CUT COIL CONNECTOR OFF. RU COIL CUTTER TO INJECTOR. CUT 95'OF COIL AND SEE E-LINE. CALCULATED LENGTH WAS SUPPOSED TO BE BETWEEN 220-AND 275'. •DROP OFF COIL CUTTER,STAB BACK ON WITH INJECTOR. FILL COIL TO PREPARE TO PUMP BACK AGAIN. PUMP BACK,CONFIRM COIL MOVEMENT. MAKE SECOND ATTEMPT TO ENSURE NO MORE MOVEMENT. BLOW BACK WITH AIR. POP OFF,RIG UP COIL CUTTER TO INJECTOR AGAIN. CUT ADDITIONAL 180'OF COIL FOR TOTAL OF 275' OF COIL TO GET TO THE E-LINE,ENSURING 2%SLACK(1-1/2 TO 2%IS NECESSARY FOR OPERATIONS). ICE IN SECTIONS OF COIL •BEING CUT. 12/15/2012 00:00 - 00:35 0.58 RIGU P PRE PLACE INJECTOR OVER HOT TUB AND BREAK CIRCULATION TO WARM UP COIL. STAB ON WITH INJECTOR TO PUMP SLACK FORWARD FOR CHROME MANAGEMENT. 00:35 - 02:00 1.42 RIGU N PRE 0-RING ON INJECTOR QUICK TEST SUB ROLLED OFF,CAUSING FRESH WATER SPRAY TO RIG FLOOR. IMMEDIATE CREW REACTION TO SHUT DOWN PUMP AND INSPECT AREA. NO DAMAGE TO EQUIPMENT OR PERSONNEL. SAFETY SHUT DOWN OF OPERATIONS. NOTIFIED SUPERINTENDENT. ASSEMBLE CREW TO DISCUSS EVENT,CONDUCT AAR ON DISTRACTIONS AND CAUSE. DISCUSS AREAS FOR IMPROVEMENT TO OPERATION. SEE REMARKS. 02:00 - 02:15 0.25 RIGU P PRE CONDUCT PJSM RTO RE-FOCUS CREW ON PUMPING SLACK FORWARD AND CUTTING COIL BEFORE RESUMING OPERATIONS. — - --- ---------_.------- 02:15 - 06:00 3.75 RIGU P PRE STAB ON WITH INJECTOR. PUMP SLACK FORWARD. BLOW BACK WITH AIR. POP OFF,MU COIL CUTTER TO INJECTOR. CUT 230'OF COIL. PREPARE END OF COIL FOR INSTALLING COIL TUBING CONNECTOR. INSTALL CONNECTOR. PULL TEST TO 35K. RE-HEAD WITH BAKER INTEQ TOOLS. MEG TEST TOOLS. PRESSURE TEST AGAINST BAKER DUAL FLAPPER CHECK VALVES. 06:00 - 06:30 0.50 RIGU P PRE CREW CHANGE AND PJSM TO CONTINUE OPS 06:30 - 06:45 0.25 RIGU P PRE PT CTS COIL CONNECTOR AND BHI UQC 06:45 - 07:30 0.75 RIGU P PRE STAB INJECTOR ON THE LUBRICATOR AND PUMP SLACK FORWARD 07:30 - 07:50 0.33 RIGU P PRE SLACK PUMPED FORWARD CLOSE THE CHOKE TO PT THE LUBRICATOR 07:50 - 09:40 1.83 RIGU N MISC • PRE SSV WONT OPEN,CYCLE SWAB VALVE TO SEE IF IT'S PRESSURE LOCKED i SWAB IS OPEN AND SSV WON'T OPEN, CLOSE CHOKE AND APPLY A LITTLE WHP TO SEE IF IT'S PRESSURE LOCKED.BROUGHT PRESSURE UP SLOW TO 1500 PSI AND NO MOVEMENT.BLEED OFF PRESSURE AND HAVE VALVE CREW TRY Printed 6/3/2013 3:29:07PM • North America-ALASKA-BP Page 5 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Ong RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:40 - 10:40 1.00 RIGU N MISC PRE VALVE CREW CANNOT OPEN THE VALVE AS I WELL,TREE&WELLHEAD WSL WANTS TO PUT HEAT ON THE SSV BARREL THINKING IT MIGHT BE FROZEN PU INJECTOR AND MU NOZZLE TO JET 75° WATER ON TOP OF THE SSV 10:40 - 11:05 0.42 RIGU P PRE NO CHANGE,VALVE CREW IS GOING TO TRY A BLEEDER TOOL ON THE SSV IT MIGHT BE PRESSURE LOCKED BLEEDER TOOL BLED OFF PRESSURE AND VALVE STROKED OPEN.HOLD PJSM TO REMOVE INJECTOR AND LOAD VALVE CREW LUBRICATOR ON THE RIG 11:05 - 12:05 1.00 RIGU P PRE REMOVE INJECTOR AND LOAD VALVE LUBRICATOR ON THE RIG AND RU TO PULL • TWC 12:05 - 13:20 1.25 RIGU P _ PRE MU TWC PULLING TOOLS PT LUBRICATOR RETEIVE TWC TWC PULLED AND WELL IS ON A SLIGHT VAC AS PER WELL PLAN FOR 0 SITP,CLOSE MASTER&SSV AND CONFIRM LEAK TIGHT [TEST 13:20 - 13:55 0.58 RIGU P PRE CONFIRMED NO FLOW FOR LEAK TIGHT TEST,PU LUBRICATOR TING IS PULLED,RD&LOAD OUT VALVE CREW EQUIPMENT 13:55 - 14:10 0.25 STWHIP P WEXIT CLOSE SWAB VALVE AND PT NIGHT CAP TO OPEN UP TO WELL-250 PSI LOW AND 3500 PSI HIGH 14:10 - 14:15 0.08 STWHIP P WEXIT GOOD PT ON NIGHT CAP,OPEN SWAB,SSV &MASTER 14:15 - 14:55 0.67 STWHIP P WEXIT NO PRESSURE FROM WELL,LINE UP TO FLUID PACK THE WELL WITH METH METH PUMP WAS RIGGED DOWN AND MOVED OUT,MOVE METH PUP BACK IN 14:55 - 15:15 0.33 STWHIP P WEXIT WELL IS FLUID PACKED,REMOVE NIGHT CAP AND WE HAVE A STATIC COLUMN OF FLUID. HOLD PJSM TO MU THE WINDOW MILLING BHA 15:15 - 16:15 1.00 STWHIP P WEXIT MU BHA#1 TO MILL THE WINDOW. 3.79" NOGO,3.80"GO FOR WINDOW MILL. 16:15 - 18:25 2.17 STWHIP P WEXIT PT QTS AND RIH 18:25 - 21:15 2.83 STWHIP P WEXIT TAG PINCH POINT AT 9438'. PU AND DISPLACE WELL. CIRCULATE MUD ALL THE WAY AROUND,OBTAIN SLOW PUMP RATES. MW IN AND OUT 8.5 PPG. 21:15 - 22:15 1.00 STWHIP P WEXIT LOG TIE-IN WITH+5'CORRECTION. SLIGHT TAG AT 9270'(POSSIBLY X-NIPPLE). CONTINUE TO RUN DOWN TO ABOVE WHIPSTOCK DOWN ON PUMPS AND DRY TAG AT 9441.7'. PU,COME ON WITH PUMPS AND RE-TAG AT 9441.1' PUW 40K. 22:15 - 00:00 1.75 STWHIP P WEXIT BEGIN MILLING OPERATIONS AT 9441.1'AT 2.75 BPM,2300 PSI FREE SPIN. MILL INITIAL FOOT AT 1 FPH WITH 1.9-3.9K WOB. VERY SLOW MILLING TO 9441.8'. NO CEMENT IN RETURNS,PREDOMINANTLY FINE METAL SHAVINGS. Printed 6/3/2013 3:29:07PM North America-ALASKA-BP Page 6 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 ' End Date:12/17/2012 X3-012VW-C:(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/16/2012 00:00 - 01:30 1.50 STWHIP N DPRB WEXIT MILLING OPERATIONS. 2250 PSI FREE SPIN AT 2.7 BPM. CONTINUE WITH MILLING MAINTAINING 2.2-3.9K WOB. NOT MAKING PROGRESS AT 9441.5. SET DOWN AND MOTOR WORK FELL OFF,WOB FELL TO.45K AND DID NOT PICK UP EVEN WHEN SETTING DOWN WITH MORE COIL WEIGHT. 01:30 - 02:15 0.75 STWHIP N DPRB WEXIT PICK UP(PUW 39.9K)CLEAN TO 9400'. DOWN ON PUMPS AND RUN BACK DOWN TO DRY TAG TO CONFIRM WHIPSTOCK DID NOT GET PUSHED AWAY. DRY TAG AT 9442.5,SET DOWN 4K. PICK BACK UP AND COME ON WITH PUMPS. FREE SPIN 2230 PSI AT 2.65 BPM. RUN DOWN TO DEPTH AGAIN BUT NO WOB OR MOTOR WORK INDICATIONS. RUN TO 9446.1'WITH NO TAG,NO CHANGE IN PRESSURES,NO WOB. 02:15 - 02:45 0.50 STWHIP N DPRB WEXIT PICK TO 9430'. PUW 38.8K. DOWN ON PUMPS AND RUN DOWN TO DRY TAG AGAIN. TAG AT 9443.5'WITH 3.5K DOWN. PICK UP AND CONSULT WITH DAY WSL. 02:45 - 03:45 1.00 STWHIP N DPRB WEXIT ON WITH PUMPS AND RUN BACK DOWN SLOWLY. SLIGHT TAG AGAIN AT 9270'. CONTINUE RUNNING DOWN AND SEE SOME MOTOR WORK PAST X NIPPLE AT 9360'. FREE SPIN 2220 PSI AT 2.65 BPM. TAG AT 9442.1',STALL AND PICK UP 15'. RUN BACK DOWN AT 2.65 BPM,ENCOUNTER MOTOR WORK AT 9441.7';2.7 BPM,2460 PSI,1.9K WOB. CALCULATE TOP OF WHIPSTOCK PICK UP AND REDUCE PUMP RATE IN ATTEMPT TO RUN BY. MAKE SEVERAL ATTEMPTS WITH VARYING PUMP RATES TO GET BY 9441'. UNABLE TO GET BY WITHOUT SIGNIFICANT MOTOR WORK OR WITH PUMPS OFF. PICK UP OFF BOTTOM;PICK UP CLEAN, 38K PUW. 03:45 - 04:15 0.50 STWHIP N DPRB WEXIT PICK UP 500'AND RUN BACK DOWN. SLIGHT TAG AT 9270'. CONTINUE DOWN TO 9440'. 04:15 - 06:00 1.75 STWHIP N DPRB WEXIT PUMP AT.7 BPM,1075 PSI AND ATTEMPT TO RUN BY 9441'. CANNOT GET BY. PU 15, BRING RATE UP TO MILLING RATE OF 2.7 BPM,FREE SPIN OF 2240 PSI. POP PAST 9441.9'. RUN DOWN,INCREASE IN MOTOR WORK AND WOB AT 9447.3'. PINCH POINT AT 9447'. PAINT FLAG ON COIL. BEGIN TIME MILLING WITH FREE SPIN OF 2245 PSI AT 2.7 BPM,.7-1K WOB. 06:00 - 07:50 1.83 STWHIP N DPRB WEXIT TIME MILL WINDOW FROM 9447.6'AT 2.7 BPM, 2260 PSI,.6-1.6K WOB. STALL AT 9448.3'PU AND RESTART MILLING TAGGING THE TOP OF THE WS AT 9441.9', TRY TO WORK PAST • 07:50 - 08:10 0.33 STWHIP N DPRB WEXIT BACK TO MILLING THE WINDOW AS PER THE WELL PLAN GETTING PRESSURE SPIKES LIKE ITS TRYING TO STALL THEN DROPS OFF BUT NO CHANGE IN WOB.CHECK SHAKER FOR STATOR RUBBER,NO RUBBER. CALLED MATT ROSS TO DISCUSS • Printed 6/3/2013 3:29:07PM North America-ALASKA-BP Page 7 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA •UWI: Active datum:Orig RKB 0-31 D-31A t 82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 08:10 - 09:10 1.00 STWHIP N DPRB WEXIT ALMOST HAD 2 STALLS AT THIS DEPTH WOB =2.10K CHECK BOTTOMS UP FOR RUBBER 30 BBLS BEFORE&AFTER AND NOTHING NOT MAKING ANY PROGRESS AND CONTINUE TO HAVE PRESSURE SPIKES CALL SUPT TO DISCUSS WHAT WE ARE SEEING AND RECOMMEND POOH TO CHECK THE MOTOR&MILL 09:10 - 09:20 0.17 STWHIP N DPRB WEXIT SUPT AGREES TO POOH TO CHECK THE BHA FLOW CHECK THE WELL 09:20 - 11:15 1.92 STWHIP N DPRB WEXIT GOOD NO FLOW CHECK,POOH 11:15 - 11:25 0.17 STWHIP N DPRB WEXIT JOG BACK IN HOLE AND FLOW CHECK WELL 11:25 - 11:40 0.25 STWHIP N DPRB WEXIT GOOD NO FLOW CHECK,TAG UP AND REMOVE INJECTOR 11:40 - 12:00 0.33 STWHIP N DPRB WEXIT LD THE BHA 12:00 - 17:45 5.75 EVAL N DPRB WEXIT WINDOW MILL IS DESTROYED&CORED OUT j ON THE FACE CALL TOWN AND DISCUSS FINDING AND PLAN FORWARD WOO FROM TOWN 17:45 - 18:10 0.42 EVAL N DPRB OTHCMP CALL FROM TO RDMO AND SWAP TO 2"FOR NEXT WELL 'HOLD PJSM WITH CREW TO GO OVER THE PLAN FORWARD 18:10 - 18:30 0.33 BOPSUR N DPRB POST MU NOZZLE BHAVITH DFCV'SAND RIH TO SWAP WELL OVER TO 1%KCL 18:30 - 22:15 3.75 BOPSUR N DPRB POST PT THE QTS. RIH WITH NOZZLE ASSEMBLY TO JUST ABOVE WHIPSTOCK AT 9440'. DISPLACE MUD WITH CLEAN KCL AT 2.5 BPM. 22:15 - 00:00 1.75 BOPSUR N DPRB POST POH WITH NOZZLE BHA PUMPING KCL 12/17/2012 00:00 - 00:30 0.50 BOPSUR N DPRB POST POH TO 2500'WHILE CIRCULATING KCL LINE UP TRUCKING,CONDUCT PJSM WITH LITTLE RED ON FREEZE PROTECTING WELL 00:30 - 01:30 1.00 BOPSUR N DPRB POST FREEZE PROTECT WELL WITH DIESEL TO 2500'. PICK UP HOLE WHILE LAYING IN DIESEL. FLOW CHECK WELL AT SURFACE, NO FLOW. PJSM ON POPPING OFF WITH INJECTOR AND LAYING DOWN NOZZLE BHA AND BAKER TOOLS WHILE FLOW CHECKING WELL. VALVE CREW ON LOCATION. 01:30 - 02:15 0.75 BOPSUR N DPRB POST POP OFF,LD BHA. VALVE CREW GREASING VALVES. 02:15 - 02:45 0.50 WHSUR N DPRB POST SET BACK PRESSURE VALVE BY VALVE CREW. CLEAR AND CLEAN RIG FLOOR. 02:45 - 04:45 2.00 WHSUR N DPRB POST NITROGEN CREW ON LOCATION. PJSM ON RIGGING UP AND BLOWING DOWN REEL MAKE UP CORROSION INHIBITOR PILL IN PITS. FILL TREE WITH METHANOL AND PRESSURE UP TO PUMP PAST BPV. CLOSE IN ALL VALVES. MONITOR TREE WITH SENSOR BETWEEN SSV AND SWAB. STAB ON WITH INJECTOR. BLOW BACK TO TIGER TANK WITH AIR TO CONFIRM LINE OPEN,__, 04:45 - 06:15 1.50 RIGD N DPRB POST PRESSURE TEST TO LOW AND HIGH ON NITROGEN LINE. ALL GOOD. PUMP CORROSION INHIBITOR AND METHANOL SPEAR THROUGH COIL. ON LINE WITH •NITROGEN TO BLOW DOWN REEL WITH RETURNS TO TIGER TANK. Printed 6/3/2013 3:29:07PM • North America-ALASKA-BP Page 8 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 IX3-012V\N C:(1,962,543.00) Project:Prudhoe Bay 1 Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/me:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:15 - 06:45 0.50 RIGD N DPRB POST SHUT DOWN N2 AND BLEED OFF PRESSURE 06:45 - 07:00 0.25 RIGD N DPRB POST PJSM TO REMOVE INJECTOR,UNSTAB COIL AND SECURE AT THE REEL 07:00 - 09:00 2.00 RIGD N DPRB POST PU INJECTOR AND DRESS PIPE TO INSTALL GRAPPLE INSTALL GRAPPLE&PULL TEST 09:00 - 11:30 2.50 RIGD N DPRB POST PULL COIL BACK TO REEL AND SECURE 11:30 - 12:30 1.00 RIGD N DPRB POST PIPE SECURED REMOVE HARDLINE FROM LREEL TO PREP FOR REEL SWAP 12:30 - 13:00 0.50 RIGD N DPRB POST RD INJECTOR AND SET ON SIDE OF RIG FLOOR 13:00 - 15:30 2.50 RIGD N DPRB POST OPEN BOPE AND INSPECT RAMS CTS WAITING FOR TRUCK TO SWAP REELS 15:30 - 16:45 1.25 RIGD N DPRB POST TRUCKS ON LOCATION TO MOVE SAT OFFICE OUT OF THE WAY TO SWAP REELS 16:45 - 20:00 3.25 BOPSUR N DPRB POST IND BOP STACK. MOVE SATELLITE OFFICE. STAGE EQUIPMENT TO SIDE OF RIG IN ORDER TO SWAP REELS. 20:00 - 22:00 2.00 RIGD N DPRB POST PJSM ON SWAPPING OUT REELS. SWAP OUT REELS WITH NO PROBLEMS. INSPECT AND LUBE REEL DRIVE PIN MECHANISMS. 22:00 - 00:00 2.00 RIGD N DPRB POST SECURE REEL TO DRIVE PINS. CONTINUE WITH STAGING FOR RIG MOVE. WARM UP MOVING SYSTEM. INSTALL TREE CAP, PRESSURE TEST. TREE SECURE,RIG RELEASE AT MIDNIGHT. III Printed 6/3/2013 3:29:07PM • D-31A, Well History (Pre Rig Sidetrack, Part 2) Date Summary 04/04/13 T/I/O=SSV/90/Vac.Temp=SI. OA FL(Campaign). No AL. OA FL near surface. SV,WV&SSV=C. MV=0. IA&OA=OTG. NOVP. 16:15. 04/30/13 INITIAL T/I/O=0/120/0. RIH W/4'TUBING PUNCHER. PUNCHED TUBING FROM 9368'-9372'. POOH AND CONFIRMED SHOTS.WELL HAND OVER W/DSO.WELL SI UPON DEPARTURE. FINAL T/I/O=0/120/0. 05/03/13 CT-8 1 3/4",Job Scope: Cement whipstock&tubing tail. Move from maint to location.AOL, permit wtih pad operator. Rig up. Perform weekly BOP test. BHA CTC Internal Roll on 2.150",X-over 2.150", Stinger 2.", Stinger 2.",X-over 2.150", Pig Shear Cement Nozzle 2.65, (OAL 8.771') Drifted tool string with 3/4" ball.4 brass shear pins for cement nozzle. Performed H2s drill with crew.Tagging on unique overshot 9306', POOH. MU new BHA w/2 additional stingers, also straightened ct above CTC, OAL 16.061'. RIH, taking wgt @ 9415'CTD, swap to meth to pump down CT. 05/03/13 T/I/O=vac/95/20(Obj: Pre-CTD)Attempted MITT to 2000 psi however in 5 min it lost 600 psi so i rolled right into a LLR. Spear in Tbg with 3 bbls of 10*f meth followed by 19 bbls of 60*f diesel to get a LLR of 0.17 bpm @ 1930 psi FWHP=0/95/20 Tags hung and DSO called @ departure. 05/04/13 CT-8 1 3/4",Job Scope: Cement whipstock&tubing tail. Tagged whipstock @ 9417'elec, mech 9430', CTD corrected to ELM 9444'@ wgt back, PU 2'&hang off CT. Cmt crew prep for job. Spot 4 bbls 15.8 cmt on whipstock&across tbg tail up to—9315'. POOH FP tbg w/60/40 meth to 2500'.At surface begin Rig down. 05/06/13 START RIH W/2.5"SAMPLE BAILER. 05/07/13 DRIFT WITH 2.50 SAMPLE BAILER TO 9242'SLM. DRIFT TO 9227'SLM W/3.80"CENT&2.50" S.BAILER. 05/09/13 T/I/O= 110/100/0(MIT T 2000 psi PASSED Per Fulbore PE)(CTD) (See Pumping Log for details) Rig to TBG. Pump 2 bbls diesel down TBG to achieve a test pressure of 2000 psi. (MITxT)TBG lost 21 psi in 1st 15 min and lost 19 psi in 2nd 15 min for a total loss of 30 psi in 30 min test. Bleed TBG Pressure to 350 Psi. RDMO. FWHP=350/101/0 wing=shut/swab=shut/ssv=shut/Master=open/IA and OA open to gauges. Operator notified of departure. 05/11/13 T/I/0=210/110/0 Conduct PJSM barriers=SSV and SV start barriers list.Verified by bleeding tubing off SSV and SV independently. LTT Pass. RU Ciw lubricator with H type TWC#258 Test lubricator Against SV gate to low of 300 PSI and high of 3500 PSI fro 5 Min each Pass Charted and documented. SV not getting full turns open 21 turns cycled valve multiple times turn count changes between 23 3/4 to 20. RDMO. 05/13/13 MIT-OA to 2000 PASSED lost 125 and 29 psi bleed OA back to 0 rig down (swab closed wing closed ssv closed master open annulus valves open to gauges well shut in on arrival and departure) FWHP=133/503/0. 05/15/13 T/1/0=20/500/0. Conducted PJSM with crew. Barriers=SV,SSV. Start barriers list. Cuycled MV, and SV 23-1/2 turns and Checked tubing pressure. Rigged up diesel to tree cap and pumped to 250 psi. SI SV, bled to 0 psi.and performed LTT for 5 min. (passed). SI SSV, opened SV and bed to 0 psi. and performed LTT for 5 min. (passed). SI SV and RU lubricator with 1-1'ext.and 4"CIW H TWC#288. Pt'd lubricator to 300 psi. and 3500 psi. independently using SV as barrier(passed). Set TWC tagging at 108". Bled tree to 0 psi. and performed LTT on TWC(passed). SI SSV and SV. RDMO. Page 1 of 2 D-31A, Well History (Pre Rig Sidetrack, Part 2) Date Summary 05/16/13 T/1/0=TWC/500/0 Conduct PJSM Barriers=MIT-T&TWC Start Barriers list.Verified by bleeding tubbing pressure off TWC. LTT pass. Removed Scaffolding and old 4"CIW tree. Installed new 4"CIW li tree.Torqued flanges to API specs and installed scaffolding. RU CIW lubricator with pulling tool, PT'd lubricator and tree to low of 300 PSI and high of 5000 PSI for 5 min each pass charted and documented. RIH and pull TWC#288 tagging at 120". Install tree cap RDMO. 05/17/13 T/I/O=0/500/10.Temp=SI. Bleed IAP&OAP to 0 psi. (Pre CTD). Bled OA to bucket in 2 min, 0 psi. Bled IA to bleed trailer 30 min, 0 psi. Monitored 30 min IA, OA, 0+psi. (Fluid/Gas). Final WHPs= 0/0+/0+.Job complete. SV,WV=C. SSV, MV=0. IA, OA=OTG. 0430. 05/18/13 T/I/0=0/25/0.Temp=SI.WHPs(Pre CTD).Well house removed and lines disconnected. IAP increased 25 psi since yesterday. SV,WV=C. SSV. MV=0. IA, OA=OTG. NOVP. 14:00 hrs. 05/18/13 T/I/0=0/0/0. Conduct PJSM. Barriers=24 hr. monitor. Start barrier list.With valve shop coordinator on location, monitored open bleed for 1 hour. Removed OA blind flange and verified VR plug in profile. Replaced blind flange with needle valve and new ring gasket.Torqued flange to API specs and pt'd to 2500 psi with no more than 10 psi loss/min. (passed).Test downloaded in QC&field charted test folder. Page 2 of 2 North America-ALASKA-BP Page 1 py- Operation Summary Report v Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/18/2013 16:00 - 18:30 2.50 MOB N DPRB PRE PREP FOR REEL SWAP. HOLD PJSM ON LOWERING 2"REEL AND RAISING 2-3/8"REEL. LOWER 2"REEL ONTO TRAILER. PU& SECURE 2-3/8"COIL INTO REEL. WARM UP DRIVE SYSTEM. 18:30 - 20:00 1.50 MOB N DPRB PRE HOLD PJSM FOR JACKING RIG UP&MOVING TO SIDE OF PAD. DISCUSS HAZARDS ASSOCIATED WITH THIS TASK INCLUDING STAYING OUT OF THE LINE OF FIRE- PARTICULARLY RIG TIRES,"STOP"IS THE WORD IF SOMETHING LOOKS OUT OF THE NORM,LIMIT RADIO TRAFFIC WHILE MOVING &HAVE PLENTY OF SPOTTERS. PAD OPERATOR NOTIFIED THAT RIG IS MOVING OFF WELL. ENSURE TREE VALVES ARE CLOSED AND ANNULI PRESSURES ARE LESS THAN 50 PSI-ALL GOOD. PREP RIG FOR MOVE. 20:00 - 21:30 1.50 MOB N DPRB PRE JACK RIG UP&MOVE RIG OFF WELL TO SIDE OF PAD. SET RIG DOWN&PREP FOR WELDING REPAIR ON MONKEY BOARD. 21:30 - 21:45 0.25 MOB N DPRB PRE HOLD PJSM FOR WELDING OPERATION& DISCUSS HAZARDS INCLUDING ENSURING ALL PROPER PERMITS ARE FILLED OUT& REVIEWED,ASSIGN ROLES& RESPONSIBILITIES FOR EACH CREW MEMBER,WORKING AT HEIGHTS,ENSURE ALL TOOLS ARE TETHERED,UTILIZE GOOD COMMUNICATION THROUGHOUT THE JOB& USE FIRE BLANKETS TO COVER FLOOR& INJECTOR. PAD OPERATOR NOTIFIED OF PLANNED WELDING OPERATION. 21:45 - 23:00 1.25 MOB N DPRB PRE PERFORM WELDING OPERATION OF CRACK ON MONKEY BOARD. 23:00 - 00:00 1.00 MOB N DPRB PRE PREP NORDIC 1 FOR RIG MOVE. 5/19/2013 00:00 - 01:00 1.00 MOB N DPRB PRE CONTINUE PREPPING NORDIC 1 FOR RIG MOVE. WARM UP DRIVE SYSTEM. 01:00 - 01:30 0.50 MOB N DPRB PRE HOLD PJSM W/RIG CREW FOR RIG MOVE. DISCUSS HAZARDS ASSOCIATED WITH RIG MOVE INCLUDING STAYING OUT OF LINE OF FIRE,ESPECIALLY TIRES,VERIFY TIRE PRESSURE,DRILLER HAS COMMAND OF BOTH SETS OF WHEELS MOVING FORWARD OR BACKWARD,STOP THE JOB IF ANYTHING LOOKS OUT OF THE NORM OR IF RIG IS VEERING OFF INTENDED PATH&GOOD RADIO COMMUNICATION THROUGHOUT THE MOVE. PLAN IS TO CONVOY SATELLITE CAMP W/RIG. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 2 ctlG Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:30 - 07:00 5.50 MOB N DPRB PRE JACK UP RIG&MOBILIZE NORDIC 1 FROM E-PAD TO D-PAD. ROUTE OF TRAVEL WILL BE RIGHT ON K PAD ROAD,LEFT ON TWIN TOWERS ROAD,RIGHT ON SPINE ROAD& LEFT ONTO D PAD ACCESS ROAD. MOVE RIG TO BACK ROW&ENTER FRONT WELL ROW FROM REAR ACCESS ROAD. VERIFY TREE VALVES ARE CLOSED&ANNULI PRESSURES ARE<50 PSI. STRAIGHTEN UP AND SPOT RIG FOR DAY SHIFT TO BACK RIG OVER WELL. 07:00 - 08:00 1.00 MOB N DPRB PRE COMPLETE CREW CHANGE OUT. HOLD PJSM ON BACKING RIG OVER WELL. ASSIGN PEOPLE TO POSITIONS,DISCUSS CRITICALITY OF CLEAR,CONCISE COMMUNICATION AND REVIEW PROCEDURE. SPOT RIG OVER D-31. "'ACCEPT RIG FOR OPERATIONS AT 0800-HRS"' 08:00 - 09:00 1.00 MOB N DPRB PRE BEGIN SPOTTING SUPPORT EQUIPMENT. ELECTRICIAN LOCKS OUT SCRS&CHANGES BOTH MUD PUMP RHEOSTATS AT OPS CAB CONTROL PANEL. _INSTALL GUARDS ON SSV,IA&OA. 09:00 - 10'30 1.50 MOB N DPRB PRE FUNCTION ALL TREE VALVES TO BLEED OFF ANY TRAPPED PRESSURE. NO PRESSURE NOTED. PERFORM DUAL BARRIER LEAK TIGHT TEST PER WELL PROGRAM CRITERIA-GOOD TESTS. RU OA SENSOR TO MONITOR VOID BETWEEN SSV&SWAB VALVES. 0915-HRS-SEND EMAIL WITH UPDATED TIMING FOR INITIAL BOPE TEST TO AOGCC REPS. 0930-HRS-AOGCC REP JEFF JONES REPLIES WITH EMAIL REQUESTING UPDATE SHORTLY PRIOR TO TEST BEGINNING. 0945-HRS-AOGCC REP JEFF JONES FOLLOWS UP WITH A PHONE CALL. WILL UPDATE WHEN READY TO TEST SO HE WILL BE ABLE TO WITNESS. 10:30 - 11:30 1.00 MOB N DPRB PRE ND TREE CAP. BARRIERS FOR ND ARE 1) LEAK TIGHT TESTED MASTER&SSV AND 2) TESTED DOWNHOLE CEMENT PLUG 11:30 - 14:00 2.50 BOPSUR N DPRB PRE NU BOP STACK. INSTALL RIG FLOOR HOT TUB&GRATING. 14:00 - 15:30 1.50 BOPSUR N DPRB PRE BRING ON S.6-PPG POWERPRO MUD TO PITS. HOLD PJSM ON TUBOSCOPE INSPECTING MONKEY BOARD WELDS. DISCUSS MANRIDER OPERATIONS,TETHERED TOOLS, EXCULSION ZONES AND IMPORTANCE OF CLEAR COMMUNICATION. TUBOSCOPE MPI WELDS TO UNDERSIDE OF MONKEY BOARD. NO DEFICIENCIES FOUND. OBTAIN RKB MEASUREMENTS. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 3 of Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) , Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:30 - 17:30 2.00 MOB N DPRB PRE HOLD PJSM ON RU&PULL COIL ACROSS ROOF TO INJECTOR HEAD. DISCUSS POSITIONS OF PEOPLE,STRUCK BY HAZARDS,EXCULSION ZONES,ORDER OF OPERATIONS AND IMPORTANCE OF CLEAR, CONCISE COMMUNICATION&NEEDED RADIO SILENCE WHILE PULLING COIL ACROSS. STRING WIRE ROPE THROUGH INJECTOR& BACK TO REEL HOUSE. MU GRAPPLE TO COIL&PULL TEST-GOOD TEST. ROLL REEL BACK&REMOVE SHIPPING BAR. PULL COILACROSS ROOF&STAB INTO INJECTOR. RD GRAPPLE. CUT OFF GRAPPLE&DRESS COIL. CUT E-LINE TAIL&REBOOT. SET INJECTOR BACK OVER CIRC HOLE& SECURE. 17:30 19:00 1.50 BOPSUR N DPRB PRE RU&FLUID PACK BOPE. PERFORM SHELL TEST OF BOP STACK- GOOD TEST HOLD H2S RIG EVAC DRILL. EXCELLENT CREW RESPONSE TO PRIMARY SAFE AREA AAR IDENTIFIED THAT WIND DIRECTION INDICATOR WAS MISSING FROM THE ODS OF THE RIG. ALSO,THE CTS SUPERVISOR SPENT EXTRA TIME TO WALK HIS OPERATOR THROUGH THE STEPS OF SECURING THE WELL WITH COIL IN THE WELL IN THE EVENT OF A LONG-TERM RIG EVACUATION DRILL. GREAT JOB BY ALL. 1840-HRS-CALL AOGCC REP JEFF JONES TO LET HIM KNOW WE ARE READY FOR HIM TO WITNESS THE BOPE TEST. ALSO SEND EMAIL UPDATE. 19:00 - 19:45 0.75 BOPSUR N DPRB PRE PERFORM CREW CHANGE. CLEAN&CLEAR RIG FLOOR. STATE INSPECTOR JEFF JONES ARRIVE ON LOCATION. 19:45 - 00:00 4.25 BOPSUR N DPRB PRE CONDUCT INITIAL BOPE PRESSURE AND FUNCTION-TEST AS PER NORDIC PROCEDURE,AOGCC REGS&DWOP POLICY.PERFORM BOP BODY TEST TO 250 PSI/4,500 PSI-PASS. INSTALL 2-3/8 X 3-1/2" TEST JOINT AND PERFORM PRESSURE-TEST TO 250PSI/5MINS AND 3,500PSI/5MIN ON FOLLOWING ITEMS: -ANNULAR BAG -#1 RAM-BLIND SHEARS -#2 RAM-2-3/8"COMBIS(2-3/8"TEST JOINT) PERFORM ACCUMULATOR DRAWDOWN TEST. -STARTING ACCUMULATOR PRESSURE= 3,000 PSI -FINAL PRESSURE AFTER FUNCTIONING ALL PREVENTERS AND HCR=1,800 PSI -10 SEC TO BUILD 200 PSI,105 SEC TO FULL PRESSURE. -3 NITROGEN BACKUP BOTTLES WITH 1,800 PSI. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 4 cps- Operation Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/20/2013 00:00 - 01:45 1.75 BOPSUR N DPRB PRE CONTINUE BOP TEST: -#3 RAM-2-3/8"x 3-1/2"VBR(2-3/8"&3-1/2" TEST JOINTS) -#4 RAM-2-3/8"COMBIS(2-3/8"TEST JOINT) FUNCTION TEST ALL RAMS FROM SLB DRILLERS CONSOLE-ALL FUNCTIONED PROPERLY. ALL RAMS CLOSED WITHIN LESS THAN 2 SECONDS.ALSO TESTED HCR AND ALL VALVES ON KILL AND CHOKE LINE AS WELL AS KILL AND CHOKE MANIFOLDS. SUCCESSFULLY TESTED ALL VISUALAND AUDIBLE GAS ALARMS.SEE ATTACHED .CHARTS. STATE INSPECTOR JEFF JONES WITNESSED 'BOPE TESTS. 01:45 - 02:00 0.25 BOPSUR N DPRB PRE HOLD PJSM FOR PU INJECTOR&STAB ON WELL FOR IRV&PACKOFF PORTION OF BOP TEST. DISCUSS PLAN FORWARD INCLUDING CREW MEMBERS ROLES&TASKS AS WELL AS HAZARDS FOR WORKING UNDER LOADS, PUMPING AT HIGH PRESSURE,HAVE ESCAPE ROUTE,BODY PLACEMENT&PINCH POINTS. 02:00 - 03:30 1.50 BOPSUR N DPRB PRE STAB ON INJECTOR. PUMP MEOH SPEAR FOLLOWED BY FW. PRESSURE TEST REELHOUSE IRON LOW TO 250 PSI&HIGH TO 4000 PSI-PASS. CONTINUE FILLING COIL WITH FW. 03:30 - 04:00 0.50 BOPSUR N DPRB PRE CLOSE IRV&PERFORM PRESSURE TEST ON INJECTOR PACKOFFS&IRV LOW TO 250 PSI &HIGH TO 3500 PSI-PASS. BOTH TESTS WITNESSED BY STATE INSPECTOR JEFF JONES. 04:00 - 04:15 0.25 BOPSUR N DPRB PRE CLEAN&CLEAR RIG FLOOR. 04:15 - 04:40 0.42 BOPSUR N DPRB PRE HOLD PJSM FOR PERFORMING SLACK MANAGEMENT. DISCUSS HAZARDS W/JOB INCLUDING WORKING UNDER LOADS,HAND &BODY PLACEMENT AROUND COIL CUTTER, SHARP EDGES ON CUT COIL&USE 3 MAN RULE ON RIG FLOOR. 04:40 - 04:55 0.25 BOPSUR N RREP PRE ATTEMPT TO FUNCTION&PRESSURE TEST MUD PUMP#1 AFTER PLANNED MAINTENANCE. RHEOSTAT ON MP#1 IS NOT WORKING. ELECTRICIAN REPAIRED RHEOSTAT. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 5 c048- Operation Summary Report v Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Ong RKB D-31 D-31A(1182.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) I (usft) 04:55 - 05:20 0.42 BOPSUR N DPRB PRE HOLD RIG EVAC DRILL&AFTER ACTION REVIEW. SLB DRILLER,ELECTRICIAN& MOTORMAN WERE MEN DOWN. ALL OTHER PERSONNEL ON RIGSITE WERE ACCOUNTED FOR&MUSTERED IN ATIMELY FASHION. AFTER ACTION REVIEW CONSISTED OF DISCUSSION AROUND HAVING A GO BOX IN THE MUSTER AREA WHICH IS CURRENTLY THE WELDING SHOP&DOES NOT CURRENTLY CONTAIN A GO BOX. IF SCS IS 'OUT DOING WALK AROUNDS AND CAN'T GET THE GO BOX OUT OF THE SCS TRAILER OR SATELLITE CAMP,WE WOULD BE WITHOUT. SCS HAS BEEN TASKED WITH FINDING A SPOT IN THE WELD SHOP WHEN USING IT AS A MUSTER AREA TO STORE THE GO BOX WITH NORDIC APPROVAL.THIS WOULD ALSO APPLY TO OTHER MUSTER AREAS THAT AREN'T NORMALLY UTILIZED. 05:20 - 05:50 0.50 BOPSUR N DPRB PRE FUNCTION&PRESSURE TEST MUD PUMP#1. REVERSE FRESH WATER INTO COIL TO PUMP SLACK IN.ESTIMATE 230'OF SLACK TO PUMP(1.5%) 05:50 - 06:30 0.67 BOPSUR N DPRB PRE RU COIL CUTTER&CUT 112'OF COIL. IDENTIFY ISSUES WITH DEPTH COUNTER. TIGHTEN JUPITER FITTING AND OPERATIONAL AGAIN. 06:30 - 07:00 0.50 BOPSUR N DPRB PRE COMPLETE CREW CHANGE. PERFORM WALKAROUNDS&PRE TOUR CHECKS. 07:00 - 07:30 0.50 BOPSUR N DPRB PRE HOLD PJSM ON CONTINUING TO CUT COIL. DISCUSS POSITIONS OF PEOPLE,ORDER OF OPERATIONS AND PROPER HANDLING OF CUT COIL. CUT AN ADDITIONAL 169"OF COIL FOR A TOTAL OF 281'CUT. RD COIL CUTTER&STAB ON WELL. PUMP SLACK FORWARD BY SURGING PUMP. HEAR E-LINE MOVING. UNSTAB INJECTOR AND WE HAVE E-LINE. 07:30 - 08:15 0.75 BOPSUR N DPRB PRE CUT OFF E-LINE TAIL&TEST E-LINE. REBOOT E-LINE. DRESS COIL FOR CTC. MU SLB CTC. PULL TEST TO 37K-LBS-GOOD TEST. PRESSURE TEST TO TO 3700-PSI- GOOD TEST. 08:15 - 09:00 0.75 BOPSUR N DPRB PRE BHI MU UQC. MEG TEST E-LINE-GOOD TESTS. 09:00 - 09:30 0.50 BOPSUR N DPRB PRE STAB ON WELL&TEST BHI DBPV&CT LUBRICATOR/QTS CONNECTIONS TO 250-PSI/3500-PSI. EACH TEST HELD FOR 5-MINUTES. GOOD TESTS. 09:30 - 10:30 1.00 BOPSUR N DPRB PRE DISPLACE COIL FROM FRESH WATER USED FOR TESTING TO 120-DEG 8.4-PPG 1%KCL. PUMP AT 2.5-BPM/1000-PSI. PUMP ANOTHER 30-BBLS TO FILL PIT#4. UNSTAB INJECTOR AND SET BACK OVER CIRC HOLE. 10:30 - 11:15 0.75 BOPSUR N DPRB PRE MU NIGHT CAP&PRESSURE TEST TO 1 250-PSI/3500-PSI FOR 5-MINUTES PER TEST. GOOD TEST. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 6J Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor.NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) i (usft) 11:15 - 12:45 1.50 MOB N SFAL PRE CTDS COMPUTER WILL NOT BOOT UP. CTS ETS TROUBLESHOOT&GET SYSTEM OPERATIONAL. 12:45 - 13:45 1.00 BOPSUR N DPRB PRE OPEN UP WELL TO CLOSED CHOKE. 0-PSI. ATTEMPT TO FILL WELL WITH MEOH-WELL IS FULL. MONITOR WELL- INITIALLY SOME AIR BREAKING OUT BUT GOOD NO FLOW TEST. 13:45 - 14:30 0.75 , STWHIP N DPRB WEXIT HOLD PJSM ON PU PILOT MILLING BHA. ,DISCUSS POSITIONS OF PEOPLE AND HIGHLIGHT WELL CONTROL CONSIDERATIONS&MITIGATIONS. MU PILOT MILLING BHA. BHA CONSISTS OF 3.80"GO/3.79"NO GO D331 PARABOLIC MILL, .6-DEG BEND 2-7/8"XTREME MOTOR,XO, 2-JTS OF 2-3/8"PH6,XO,XO HOT,DGS,DPS, EDC,P&C,WEAR SUB,LQC,UQC,XO&CTC. OAL=130.78'. 14:30 - 15:00 0.50 STWHIP N ' DPRB WEXIT MU COIL TO BHA&STAB ON WELL. TEST QTS TO 250-PSI/3500-PSI. HOLD EACH TEST FOR 5-MINUTES. GOOD TESTS. OPEN EDC&ESTABLISH CIRCULATION AT .6-BPM/60-PSI,TAKING ALL RETURNS TO TIGER TANK. AT START,IA/OA/PVT=63-PSI/0-PSI/ 323-BBLS. • -- 15:00 - 17:00 2.00 STWHIP N DPRB • T WEXIT RIH WITH PILOT HOLE MILLING BHA. STOP AT 329'AND CHECK INNER REEL HARDLINE. TIGHTEN CHAINS SECURING IT • IN PLACE. • CONTINUE TO RIH,CIRCULATING AT.42-BPM/ 25-PSI. AT START,IA/OA/PVT=63-PSI/0-PSI/ 323-BBLS. AT END,IA/OA/PVT=130-PSI/250-PSI/ 1323-BBLS(NO CHANGE DUE TO TAKING • FLUIDS OFF TRUCKS&RETURNS TO TIGER TANK). 17:00 - 17:30 0.50 STWHIP N ' DPRB WEXIT LOG TIE IN TO TSGR PER GEO. APPLY PLUS 2'CORRECTION. CIRCULATE THROUGH OPEN EDC AT.4-BPM/ 100-PSI. CONTINUE TO PUMP KCL,TAKING RETURNS TO TIGER TANK 17:30 - 19.45 2.25 STWHIP N DPRB WEXIT CONTINUE TO RIH,CIRCULATING THROUGH OPEN EDC. TAG AT 9246'. •PU SLOWLY,INCREASING PUMP RATE TO 2.2-BPM/720-PSI. CONTINUE PUMPING KCL UNTIL TRUCK IS EMPTY. DISPLACE WELL TO 8.6-PPG POWERPRO MUD. IA/OA=150-PSI/350-PSI Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 7 d( Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UW: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:45 - 21:15 1.50 STWHIP N DPRB WEXIT START KEEPING MUD IN HOUSE. CLOSE EDC &TAG UP AT 9246'.PU&TAKE FREE SPIN= 2200 PSI.START MILLING AHEAD AND SEE NO MOTORWORK(X NIPPLE AT 9247'). WORK THROUGH EASILY AND CONTINUE WASHING •AHEAD. MILL AHEAD TO 9323'AND SEE MOTOR STALL. PU&SLOWLY EASE INTO 9323'AND SEE—100 PSI MOTORWORK AND 0.5K WOB. WORK THROUGH WITH NO PROBLEMS&LOSE MOTORWORK&WOB. WASH AHEAD. RETURNS SHOWING CEMENT •W/A PH OF 11 AND STAINING MUD TO A SLIGHT GRAY COLOR. OBSERVE A SIGNIFICANT AMOUNT OF SMALL CEMENT PARTICLES COMING ACROSS SHAKERS. 21:15 - 23:30 2.25 STWHIP N DPRB WEXIT CONTINUE MILLING/WASHING AHEAD AND FIND HARD TOC AT 9,330'. OBSERVE CONSTANT MOTORWORK&WOB FROM THIS POINT FORWARD. MOTOR WORK=200-300 PSI/WOB=0.50- 1.6KLBS. RETURNS ARE COMING BACK W/PH OF 11 TO 12. START SLOWLY ADDING CITRIC ACID TO NEUTRALIZE MUD. MILL AHEAD W/200-300 PSI MOTORWORK& 0.50-1.5KLBS WOB FROM 9,330 TO 9448.3'. SLOWLY APPROACH 9440'WITH SAME MILLING PARAMETERS AS ABOVE UNTIL 9448.3'&MOTOR STALLS-SAME DEPTH WE MADE IT TO ON THE FIRST ATTEMPT OF THIS WELL. 23:30 - 00:00 0.50 STWHIP P WEXIT BACKREAM FROM 9448.3'TO 9300'WITH NO CHANGE IN PUW&NO MOTORWORK •OBSERVED. PILOT HOLE APPEARS TO BE CLEAN. 5/21/2013 00:00 - 00:45 0.75 STWHIP P WEXIT CLEAN UP CONTINGENCY WHIPSTOCK SETTING AREA FROM 9390'-9412'& DEPLOYMENT SLEEVE SETTING AREA FROM 8310'-9330'UP&DOWN CHANGING TOOLFACE ORIENTATION BY 90 DEGREES EACH PASS-4 UP/DOWN PASSES ACROSS BOTH SECTIONS. DO NOT OBSERVE ANY MOTOR WORK&PUW/SOW ARE CLEAN ON ALL PASSES. - 00:45 - 03:00 2.25 STWHIP P WEXIT FLOWCHECK-NO FLOW. POOH/PILOT HOLE BHA. HOLD PJSM FOR LD PILOT BHA& MU WINDOW MILLING BHA. DISCUSS HAZARDS ASSOCIATED WITH THE JOB INCLUDING WELL CONTROL CONTINGENCIES,PERFORM A DRILL/ SAFETY JOINT,HAND PLACEMENT WHEN WORKING WITH LITTLE JERKS&WORKING UNDER SUSPENDED LOADS. FLOWCHECK AT 200'-NO FLOW.BUMP UP INTO LUBRICATOR. UNSTAB INJECTOR&LD PILOT HOLE BHA. GAUGE PARABOLIC MILL AT 3.79 GO/3.78 NO GO. 03:00 - 03:30 0.50 STWHIP P • WEXIT MU WINDOW MILLING BHA&STAB ON INJECTOR. PRESSURE TEST QTS LOW TO 250 PSI&HIGH TO 3500 PSI-GOOD. 06:00 2.50 STWHIP P WEXIT RIH/BHA 03:30 (WINDOW MILL). PERFORM TIE IN LOG,APPLY+2'CORRECTION. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 010 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) �l/Cfir;14Mr- 06:00 - 12:30 6.50 STWHIP P WEXIT TAG PBTD AT 9448.3'&PU TO OBTAIN FREE SPIN=2.6-BPM/2200 PSI. 1)-?j(13 RIH SLOWLY&BEGIN MILLING AHEAD IN WINDOW FROM 9449.2'. AT 9449.7'-MILLING SLOWLY AHEAD WITH 2- 3K-LBS WOB&200-300-PSI MOTOR WORK. AT 9950.2'-STILL SLOW GOING,WOB BETWEEN 2.5-3.5K-LBS. MOTOR WORK AT 200-300-PSI. SOME METAL SEEN IN CUTTINGS. AT 9450.7'-STILL SLOW GOING, INCREASING WOB TO 2-4.25K-LBS AND MOTOR WORK FROM 200-450-PSI. PERIODICALLY GETTING WEIGHT BACK OR STACKING WEIGHT WITHOUT MOVING COIL. INCREASE RATE TO 2.8-BPM&MILLS OFF SLIGHTLY BETTER. AT 9450.8',PUMP 10-BBLS HI VIS SWEEP BLEED OA PRESSURE FROM 920-PSI TO 800-PSI-MAINLY GAS. 12:30 - 15:45 3.25 STWHIP P WEXIT CONTINUE MILLING AHEAD AS WOB& MOTOR WORK ALLOW. 9451.2'-4 KLBS WOB/400 PSI MOTOR WORK BLEED OA PRESSURE FROM 930 PSI TO 475 PSI-FLUID/GAS MIX,-0.5 BBL FLUID RETURNED. MM IN 2.80/MM OUT 2.83/MW IN 8.62/MM OUT 8.54/RETURNS PH 11-12 9452.0-4.3 KLBS WOB/400 PSI MOTOR WORK-TIME MILLING AT-1'/HR. 9452.5-3.1 KLBS WOB/450 PSI MOTOR WORK-DRILLING OFF NICE AT 1'/HR. 6452.8-2.7 KLBS WOB/350 PSI MOTOR WORK. 6453.2-2.2 KLBS WOB/380 PSI MOTOR WORK. 9453.5-2.7 KLBS WOB/500 PSI MOTOR WORK-CONTINUE TIME MILLING AT-1'/HR. 9553.8-2.0 KLBS WOB/500 PSI MOTOR WORK. 9454.0-0.75 KLBS WOB/350 PSI MOTOR WORK. THIS APPEARS TO BE BOW. 15:45 - 19'00 3.25 STWHIP P WEXIT CONTINUE MILLING AHEAD IN RATHOLE. DRESS WINDOWAS STRING REAMER GOES BY.MILL RATHOLE TO 9,465'MD. 19'00 - 20.00 1.00 STWHIP P WEXIT MAKE 3 BACKREAM PASSES.PULL AT ONE FOOT PER MINUTE WITH 35K UP WEIGHT AND 16K DOWN WEIGHT.PUMP AT 2.6 BPM IN AND OUT WITH 2350 PSI.MUD WEIGHT IN AND OUT 8.6 PPG.OBSERVE 100-200 PSI MOTOR WORK IN A FEW SPOTS ON EACH PASS.ON THIRD DOWN PASS AT 9,450'MD TAKE 3-5K DOWN WEIGHT.PULL UP TO 47K WITH NO MOVEMENT. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 9 of.�9- Operation Summary Report tv/ Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM I Rig Release: Rig Contractor:NORDIC CALISTA UW: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:00 - 22:15 2.25 STWHIP N STUC 9,450.00 WEXIT WORK PIPE WITH TOP OF WINDOW AT 9,446' MD AND BOTTOM OF WINDOW AT 9,454'MD AND RATHOLE TO 9,465'MD AND BIT AT 9,450' MD.MOVE PIPE TO 60°RIGHT STILL NO UP AND DOWN.RELAX TO NEUTRAL WEIGHT. PUMP AT 0.5 BPM WITH 2200 PSI.MOVE TO 110°RIGHT AND OBSERVE INCREASE IN WEIGHT OF 600 TO 1000 FT/LBS.MOVE TO 120°RIGHT AND PRESSURE INCREASES AGAIN TO 2600 PSI.UNABLE TO MOVE PIPE UP OR DOWN.MOVE BACK TO 110°RIGHT 'AND PRESSURE DROPS OFF AGAIN.STILL NO PIPE MOVEMENT.PULL UP TO 62K AND 13K DOWN SEVERAL TIMES WITH NO MOVEMENT.ATTEMPT TO PRESSURE UP TO TORQUE COIL AND DROP PRESSURE,STILL NO PIPE MOVEMENT.CONTINUE TO WORK PIPE UP AND DOWN AND ROTATE LEFT AND RIGHT WITH NO LUCK MOVING PIPE. PRESSURE UP ON WELLBORE TO 1000 PSI WITH COIL IN TENSION.DUMP PRESSURE AND ATTEMPT TO PULL FREE-NO GO.PUT COIL IN COMPRESSION AND PRESSURE UP TO 1000 PSI.DUMP PRESSURE AND PULL UP 62K AND PULL FREE.PULL UP ABOVE TOP OF CEMENT AT 9,330'MD. 22:15 - 22:45 0.50 STWHIP N STUC 9,450.00 WEXIT PULL SLOWLY UP HOLE WHILE DISCUSSING PLAN FORWARD. 22:45 - 23:00 0.25 STWHIP N STUC 9,450.00 WEXIT RUN IN HOLE TO TOP OF WINDOW AT 9,446' MD.PUMP AT 2.8 BPM WITH 2454 PSI.OUT MM 3.1 BPM.DOWN WEIGHT 18K.DECISION MADE TO RUN IN AND TRY TO CLEAN HOLE AND VERIFY A GOOD WINDOW. 23:00 - 23:30 0.50 STWHIP P WEXIT REAM AND BACKREAM ONE PASS THROUGH WINDOW.PUMP AT 2.8 BPM WITH 2380 PSI. DOWN WEIGHT 17K,UP WEIGHT 37K.WORK 1 SLOWLY DOWN THROUGH WINDOWAND TAG UP ON BOTTOM.SHUT DOWN AND DRY DRIFT WINDOW WITH NO PROBLEMS. 23:30 - 00:00 0.50 STWHIP P WEXIT CIRCULATE HI-VIS SWEEP AND WORK MILL BACK TO BOTTOM AS SWEEP GOES AROUND THE CORNER.PULL UP HOLE CHASING SWEEP OUT.SHUT DOWN TO OPEN EDC. MUD WEIGHT IN AND OUT 8.6 PPG.POOH.y 5/22/2013 00:00 - 02:00 2.00 STWHIP P WEXIT POOH WITH MILLING ASSEMBLY TO BHA AT 200'MD.FLOW CHECK WELL-STATIC. 02:00 - 02:30 0.50 STWHIP ' P WEXIT POOH WITH MILLING BHA AND LAY DOWN. INSPECT WINDOW MILL-3.77"NO-GO AND e. ! STRING MILL-3.79"NO-GO.TWO GOUGES BETWEEN WINDOW MILL AND STRING MILL. 02:30 - 03:00 0.50 STWHIP P WEXIT MAKE UP BUILD DRILLING BHA TO 80'AND RIH. 03:00 - 03:30 0.50 STWHIP P WEXIT STAB AND MAKE UP INJECTOR.MAKE UP QUICK TEST SUB AND TEST TO 250 PSI LOW, 3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS.CHECK TORQUE ON TREE [BOLT,ALL GOOD. _ Printed 6/12/2013 10:56:32AM • North America-ALASKA-BP Page 10 edi Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UW: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 05:00 1.50 STWHIP P WEXIT RIH WITH BUILD SECTION BHA AT 94 FPM. PUMP AT 0.8 BPM WITH 732 PSI OUT MM 1.39 BPM.MUD WEIGHT IN AND OUT 8.6 PPG. VOLUME 265 BBLS.IA-390 PSI,OA-320 PSI. CONTINUE RUNNING IN AT 8,700'MD AT 65 FPM WITH 18K DOWN WEIGHT.PUMP AT 0.8 BPM WITH 970 PSI,OUT MM 1.15 BPM. VOLUME 307 BBLS. 05:00 - 07:00 2.00 STWHIP P WEXIT LOG LONG TIE-IN FROM 8,840'TO 9,040'AT 1.5 FPM WITH 18K DOWN WEIGHT.PUMP AT 0.8 BPM WITH 950 PSI.MUD WEIGHT IN AND OUT 8.6 PPG. 07:00 - 07:20 0.33 STWHIP P WEXIT LONG LOGGING PASS COMPLETED, CORRECT DEPTH+5'AND RIH TO THE WINDOW AT THE WINDOW CLOSE THE EDC AND RIH TO TD 07:20 - 07:30 0.17 STWHIP P ' WEXIT TAG TD AT 9466',PU TO UP WEIGHT AND OBTAIN SPR'S 07:30 - 10:00 2.50 STWHIP N DFAL 9,490.00 WEXIT RIH TO START DRILLING,STALL AT 9462',PU AND HAD-5K OVER PULL.RIH WITH NO PUMP AND ITS CLEAN PU AND START PUMP 10:00 - 12:00 2.00 DRILL N DFAL 9,490.00 PROD1 SLOW ROP WITH A FEW STALLS FREE SPIN=2450 PSI AT 2.9 BPM RATE IN=2.90 BPM RATE OUT=1.78 BPM ROP=10 FPH WOB=1.5 K CIRC PSI= 3208 PSI MW IN=8.67 PPG MW OUT=8.58 PPG ECD =10.27 PPG IAP=608 PSI OAP=522 PSI PVT=311 BBLS 12:00 - 13:50 1.83 DRILL N DFAL 9,490.00 PROD1 SEVERAL STALLS AND NOT MAKING ANY PROGRESS,ONLY 2'IN THE LAST 2 HRS TRIED SLOW ROP,0.1'INCHING OUR WAY DOWN AND NORMAL RIH SPEEDS AND WE CANNOT GET IT TO DRILL,IT JUST WANTS TO STALL.WHEN THE BIT GETS CLOSE TO BOTTOM THE WOB STARTS SHOWING A LITTLE WEIGHT STACKING THEN GOES INTO A STALL,NOT SURE IF THE RES TOOL IS HOLDING US UP SO WE WILL CHECK THE WHOLE BHA FOR SCARING AND CHECK THE BIT FOR DAMAGE FLOW CHECK THE WELL GOOD NO FLOW,POOH 13:50 - 14:35 0.75 DRILL N DPRB 9,490.00 PROD1 HOLD PJSM TO PULL AND CHECK THE BHA OUT MM IS PLUGGING OFF,BYPASS AND BLOW DOWN. GOTA LOT OF SHAVED METAL AND CHUNKS OF CMT FROM THE BLOW DOWN 14:35 - 14:45 0.17 DRILL N DPRB 9,490.00 PROD1 FLOW CHECK WELL 14:45 - 17:00 2.25 DRILL N DPRB 9,490.00 PROD1 GOOD NO FLOW,TAG UP,REMOVE THE INJECTOR AND PULL THE BHA BIT IS BEAT UP AND LOOKS LIKE WE HAVE SOME JUNK IN THE HOLE CALL TOWN TO DISCUSS OPTIONS 17:00 - 17:30 0.50 DRILL N DPRB 9,490.00 PROD1 TOWN WOULD LIKE TO RERUN THE WINDOW BHA TO CLEAN UP THE WNDOWAREA AND GRIND UP THE JUNK THAT MIGHT BE ON BOTTOM AND ALSO CLEAN UP THE CMT SHEATH IN THE TUBING Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 11 cat- Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C DRILL(4,282,410.00) Project:Prudhoe Bay ' Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA I UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:30 - 21:00 3.50 DRILL N DPRB 9,490.00 PROD1 WAIT FOR VINDOW MILL FROM HUGHES AND ORDERS FROM TOWN.REPLACE NUTS ON GOOSENECK ROLLERS.PRESSURE TEST PUMP AND SEAT VALVES.RUN 200'OF COIL IN HOLE AND INSPECT FOR DAMAGE.NO DAMAGE NOTED. 21:00 - 21:30 0.50 DRILL N DPRB 9,490.00 PROD1 MAKE UP MILLING ASSEMBLY,BHA#4 AND RUN IN HOLE TO 67'. 21:30 - 22:00 0.50 DRILL N DPRB 9,490.00 PROD1 STAB INJECTOR AND MAKEUP QUICK TEST SUB.TEST SUB TO 250 PSI LOW,4000 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 22:00 - 23:30 1.50 DRILL N DPRB 9,490.00 PROD1 RUN IN HOLE AT 85 FPM WITH 19K DOWN WEIGHT,UP WEIGHT 35K.PUMP AT 0.6 BPM WITH 920 PSI,OUT MICRO MOTION 1.0 BPM. VOLUME 308 BBLS WITH A MUD WEIGHT IN AND OUT OF 8.6 PPG.IA-340 PSI,OA-0 PSI. 23:30 - 00:00 0.50 DRILL N DPRB 9,490.00 PROD1 LOG TIE-IN FROM 8,840'TO 8,865'AT 2 FPM. CORRECTION OF PLUS 7.5 FEET.RUN A CCL LOG FROM 9,050'MD TO 9,460'AT 16 FPM WITH 19K DOWN WEIGHT.PUMP AT 1.5 BPM WITH 1360 PSI. 5/23/2013 00:00 - 00:15 0.25 DRILL N DPRB 9.490.00 : PROD1 LOG TIE-IN FROM 8,840'TO 8,865'AT 2 FPM. CORRECTION OF PLUS 7.5 FEET.RUN A CCL LOG FROM 9,050'MD TO 9,460'AT 16 FPM WITH 19K DOWN WEIGHT.PUMP AT 1.5 BPM WITH 1360 PSI. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 12 ot! Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UW: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 00:15 - 05:00 4.75 DRILL N DPRB 9,490.00 PROD1 MAKE REAMING PASSES IN THE 4.5"TUBING FROM 9,300'MD TO 9,424'MD AT THE TUBING TAIL.PUMP AT 2.7 BPM WTH 2325 PSI.UP WEIGHT 28-35K,DOWN WEIGHT 16-19K. VOLUME 310 BBLS WITH 8.6 PPG MUD IN AND OUT.IA-625 PSI,OA-420 PSI. MAKE REAMING PASSES AT 45°INCREMENTS FROM 0°TO 360°AT 5 FPM. -9,360'BOBBLE AT 45°RIGHT OF HIGH SIDE GOING UP.GO BACK DOWN-CLEAN AND CLEAN GOING BACK UP. -9,321'BOBBLE AT 45°RIGHT OF HIGH SIDE GOING UP WITH A PRESSURE INCREASE OF 500 PSI.GO BACK DOWN WITH NO INDICATIONS BUT SEE AGAIN COMING BACK UP.WIPE 2 MORE TIMES WITH SLIGHT BOBBLE AND DECREASE IN PRESSURE SPIKE FROM 500 PSI SPIKE TO 300 PSI SPIKE.CONTINUE REAMING TUBING.THIS AREA HAS NO EQUIPMENT OR JEWELRY BUT IS CLOSE TO WHAT APPEARS TO BE A 4.5" TUBING PUP COLLAR FROM THE CCL.(9,322') -SEEING INCREASE IN CUTTINGS OFF OF SHAKER.VERY FINE(HAIR TYPE)METAL WITH MOSTLY CEMENT. -9,400'AND 9,397'PRESSURE SPIKES OF 700 PSI AT 225°RIGHT OF HIGH SIDE GOING UP THAT CLEANED UP AFTER ONE WIPE. 9,393'BOBBLE AT 225°RIGHT OF HIGH SIDE WITH AN 800 PSI SPIKE IN UP STROKE.WIPE DOWN AND UP TWICE WITH DECREASING PRESSURE SPIKES.CLEANED UP ON LAST WIPE WITH 200 PSI SPIKE. -9,358'BOBBLE AT 225°RIGHT OF HIGH SIDE GOING UP WITH A 600 PSI SPIKE.WIPE ONCE. -CUTTINGS COMING OFF SHAKER HAVE DECREASED.PUMP 15 BBL SWEEP. FINISH REAMING RUNS.RUN IN HOLE TO WINDOW AT 9,446'MD. 05:00 - 06:30 1.50 DRILL N DPRB 9,490.00 PROD1 DRESS WINDOW AT AS MILLED TOOL FACE AT 0.4-0.8 FPM.PUMP AT 2.7 BPM WITH 2355 PSI.MAKE THREE PASSES.DOWN WEIGHT 18K,UP WEIGHT 35K.REAM UNTIL NO MOTOR WORK IS OBSERVED. 06:30 - 07:30 1.00 DRILL N DPRB 9,490.00 PROD1 3 PASSES MADE AT 20°RIGHT,ORIENT TO 20°LEFT FOR 3 PASSES 07:30 - 07:35 0.08 DRILL N DPRB 9,490.00 PROD1 MADE 3 PASSES AT 20°LEFT WITH NO MOTOR WORK,ORIENT TO AS DRILLED TOOLFACE AND DRY DRIFT WINDOW AS PER THE OCN 07:35 - 07:40 0.08 DRILL N DPRB 9,490.00 PROD1 DRY DRIFTS ARE CLEAN IN BOTH DIRECTIONS,RIH TO TD AT MIN RATE TO TAG 07:40 - 08:45 1.08 DRILL N DPRB 9,490.00 PROD1 TAG BOTTOM,PU AND BRING PUMP TO FULL RATE TO MILL DEBRIS HAD 2 STALLS AT 9489 AND 9490 Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 13 4a Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay I Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) _ 08:45 - 10:00 1.25 DRILL N DPRB 9,490.00 PROD1 !LOOKS LIKE WE ARE JUST ON FORMATION NOW,START 30 BBL HI-VIS PILL CHASE HI VIS PILL UP TO 9000'THEN RIH TO WINDOW THE HI-VIS PILL DID NOT BRING UP ANYTHING OPEN THE EDC AND PUMP A BOTTOMS UP AT MAX RATE 10:00 - 10:15 0.25 DRILL N I DPRB 9,490.00 PROD1 OPEN EDC PUMPING AT 4.7 BPM WHILE MOVING UP HOLE SLOW POWER CONSUMPTION IS AT 78% 10:15 - 10:20 0.08 DRILL N DPRB 9,490.00 PROD1 HIGH RATE BOTTOMS UP DID NOT BRING UP ANYTHING,OUR WELL SHOULD BE CLEAN 10:20 - 10:30 0.17 DRILL N DPRB 9,490.00 PROD1 30 BBLS PAST BOTTOMS UP IS CLEAN,SHUT DOWN PUMP AND FLOW CHECK WELL TO •POOH 10:30 - 12:05 1.58 DRILL N DPRB 9,490.00 PROD1 GOOD NO FLOW CHECK BRING PUMP TO FULL RATE AND START POOH PVT=311 BBLS 2500'HOLD PJSM TO LD THE WINDOW BHA AND MU THE BUILD BHA 1205 - 12:15 0.17 DRILL N DPRB 9,490.00 PROD1 200'FROM SURFACE JOG IN HOLE AND OUT MM HAS SOMETHING PACKED OFF IN IT. BYPASS AND BLOW DOWN 12:15 - 12:20 0.08 DRILL N DPRB 9,490.00 PROD1 FLOW CHECK WELL 112:20 - 12A0 0.33 DRILL N DPRB 9,490.00 PROD1 GOOD NO FLOW CHECK,TAG UP AND LD THE I . WINDOW BHA THEN MU THE BUILD BHA 112:40 - 12:50 0.17 DRILL N DPRB 9,490.00 PROD1 BHA OOH,BOTH MILLS GAUGED 3.76 GO 3.75 NO GO 12:50 - 13:30 0.67 DRILL N DPRB 9,490.00 PROD1 GOT A LOT OF METAL BACK THE LAST 2 TRIPS IN THE HOLE,JET STACK 13:30 - 14:00 0.50 DRILL N ' DPRB 9,490.00 PROD1 MU THE BUILD BHA 14:00 - 15:40 1.67 DRILL N DPRB 9,490.00 PROD1 RIH — --- --------_--------- 15:40 - 15:50 0.17 DRILL N DPRB 9,490.00 PROD1 LOG TIE IN 15:50 - 16:45 0.92 DRILL N DPRB 9,490.00 PROD1 CORRECT DEPTH+7.5'THEN RIH TO LOG THE RA RA IS AT 9450'RIH TO BOTTOM 16:45 - 16:50 I 0.08 DRILL N PROD1 TAG BOTTOM,PU AND OBTAIN SPR'S 16:50 - 19:30 2.87 DRILL N PROD1 START DRILLING 3 STALLS TRYING TO GET STARTED.UNABLE TO MAKE HEAD WAY.TRY DIFFERENT PUMP RATES,WOB AND ROP'S.TURNING LEFT AT 270°. PUMP AT 3 BPM WITH 2655 PSI,2500 PSI FREE SPIN.DOWN WEIGHT 20K WITH 0.4 1 WOB.SOME VIBRATION AT MOTOR. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 14 049 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:30 - 22:30 3.00 DRILL N PROD1 MAKE ATTEMPTS TO TIME DRILL AT 1 FPH PUMPING AT 3 BPM WITH 2585 PSI.WOB 0.4K. MOTOR STALLS EACH TIME.ON THIRD ATTEMPT OBSERVE MOTOR START TO STALL BUT DRILLED OFF.CONTINUED TO TIME DRILL TO 9,489'THEN STALL OUT.PULL UP AND RUN INTO IT.ABLE TO DRILL OFF AT 3 BPM WITH 2800 PSI AND 0.8K WOB.DRILL AHEAD AT 7 FPH WITH 2300 PSI FREE SPIN. DRILL TO 9,492'MD AND STALL OUT.MAKE SEVERAL MORE ATTEMPTS WITH DIFFERENT PARAMETERS TO MAKE HEADWAY BUT UNABLE TO.DECISION MADE TO PULL THE BHA. 22:30 - 23:00 0.50 DRILL N PROD1 CIRCULATE BOTTOM OF HOLE CLEAN.SHUT DOWN AND FLOW CHECK-STATIC.MUD WEIGHT IN AND OUT 8.6 PPG. 23:00 - 00:00 1.00 DRILL N PROD1 PULL OUT OF HOLE AT 75 FPM WITH 34K UP WEIGHT.PUMP AT 3.1 BPM WITH 2290 PSI, OUT MICRO MOTION 2.75 BPM.MUD WEIGHT IN AND OUT 8.6 PPG.VOLUME 310 BBLS.IA- 775 PSI,OH-760 PSI. 5/24/2013 00:00 - 00:45 0.75 DRILL N DPRB PROD1 PULL OUT OF HOLE AT 75 FPM WITH 34K UP WEIGHT TO BHA AT 68'.PUMP AT 3.1 BPM WITH 2290 PSI,OUT MICRO MOTION 2.75 BPM.MUD WEIGHT IN AND OUT 8.6 PPG. VOLUME 310 BBLS.IA-775 PSI,OH-760 PSI. 00:45 - 01:00 0.25 DRILL N PROD1 FLOW CHECK WELL AT BHA-STATIC. 01:00 - 01:30 0.50 DRILL N PROD1 LAY DOWN BUILD SECTION ASSEMBLY,BHA# 5.BIT IS GRADED 4-7-BT-A-X-I-XT-PR.NO ABNORMAL WEAR ON BHA COMPONENTS. 01:30 - 02:30 1.00 DRILL N PROD1 PERFORM COIL MANAGEMENT AND CUT 100' EACH OF COIL AND E-LINE.HEAD UP AND PULL TEST TO 40K-PASS.PRESSURE TEST COIL CONNECTOR TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 02:30 - 03:00 0.50 DRILL N PROD1 MAKE UP BAKER COIL TOOLS. 03:00 - 04:00 1.00 DRILL P PROD1 STAB INJECTOR AND MAKE UP QUICK TEST SUB.TEST LUBRICATOR AND DUAL FLAPPER SAFETY VALVES TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 04:00 - 04:45 0.75 DRILL N PROD1 PICK UP AND RIH WITH BUILD SECTION ASSEMBLY,BHA#6 WITH NEW X-TREME MOTOR AND C3 BIT TO 66'.STAB INJECTOR AND MAKE UP QUICK TEST SUB. • 04:45 - 05:15 0.50 DRILL N PROD1 TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 05:15 - 07:05 1.83 DRILL N PROD1 RUN IN HOLE WITH BUILD SECTION ASSEMBLY,BHA#6. 07:05 - 07:20 0.25 DRILL N PROD1 LOG TIE IN TO RA 07:20 - 07:25 0.08 DRILL N PROD1 CORRECT DEPTH+4',RIH AND TAG BOTTOM Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 1539 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) I Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor.NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:25 - 08:15 0.83 DRILL N i PROD1 TAG TD ON DEPTH,PU TO UP WT AND START MOTOR HIGH VIBRATION I •9491.34'SPIKE IN CIRC PRESSURE BUT DID 1 NOT STALL 9491.54'STALL 08:15 - 10:10 1.92 DRILL N PROD1 FLOW CHECK WELL,GOOD NO FLOW,POOH 10:10 - 10:15 0.08 DRILL N PROD1 FLOW CHECK WELL 10:15 - 10:35 0.33 DRILL N PROD1 I GOOD NO FLOW,LD BHA BIT GRADE IS 3-7 10:35 - 11:00 0.42 DRILL N PROD1 ADJUST MOTOR TO 2.75°AKO WITH CC STR 335 BIT - 11.00 - 11:20 0.33 DRILL N PROD1 MU THE BUILD BHA PU THE INJECTOR AND STAB ONTO THE BHA 11:20 - 11:35 0.25 DRILL N PROD1 PT THE QTS 11:35 - 13:20 1.75 DRILL N PROD1 RIH WITH BUILD BHA 13:20 - 13:35 0.25 DRILL N PROD1 LOG TIE IN TO RA 13:35 - 14:00 0.42 DRILL N PROD1 NO CORRECTION,DISCUSS PLAN FORWARD WITH DRLG SUPT 14:00 - 17:00 3.00 DRILL N PROD1 TAG TD,PU TO UP WT AND WORK DOWN TO FIRST MOTOR WORK THEN ESTABLISH A PATTERN IN THE FORMATION 9489.42'STALL.CONTINUE TO STALL AT SAME DEPTH 17:00 - 17:30 0.50 DRILL N PROD1 1ALL ATTEMPTS TO GET SIDETRACKED AT 19489.3'AT 45°LOHS HAVE FAILED.ORIENT TO '0°AND TRY A HS TOOLFACE 17:30 - 18:30 1.00 DRILL N PROD1 MADE 1'AT THIS TOOLFACE 18:30 - 18:50 0.33 DRILL N PROD1 START APPLYING MORE WOB TO SEE IF WE CAN MAKE HOLE • WE ARE DRILLING AT 100 FPH 18:50 - 19:30 0.67 DRILL N PROD1 DRILLED TO 9535'BUT WE ARE TRACKING THE CASING FROM THE OLD WELL. DECISION MADE TO PULL THE BIT FOR AN UNDER REAMER.WILL RUN SECOND • WHIPSTOCK AND SET IN 4.5"TUBING. 19:30 - 19:45 0.25 DRILL N PROD1 •PERFORM CCL LOG FROM 9,200'MD TO 9,479' I MD AT 15 FOOT PER MINUTE.PUMP AT 0.3 BPM WITH 940 PSI.DOWN WEIGHT 18K. 19:45 - 22:00 1 2.25 DRILL N PROD1 PULL OUT OF HOLE FROM 9,480'MD AT 63 l FPM.PUMP AT 2.1 BPM WITH 1520 PSI.UP WEIGHT 36K.MUD WEIGHT IN AND OUT 8.6 PPG. 122:00 - 22:15 ' 0.25 DRILL N PROD1 POOH TO BHA AT 200'.FLOW CHECK WELL- STATIC. 22:15 - 22:45 0.50 DRILL N PROD1 POOH WITH BHA.POP OFF INJECTOR AND SET BACK.PULL AND LAYDOWN BUILD SECTION ASSEMBLY,BHA#7.BIT GRADE 5-8 22:45 - 23:30 0.75 DRILL I N i PROD1 I MAKE UP RIVES UNDER REAMER ASSEMBLY, BHA#8 AND RIH. 23:30 - 00:00 0.50 DRILL N ' PROD1 STAB AND MAKE UP INJECTOR AND MAKE UP QUICK TEST SUB.PRESSURE TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS. Printed 6/12/2013 10:56 32AM North America-ALASKA-BP Page 16 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/25/2013 00:00 - 01:30 1.50 DRILL N DPRB PROD1 RUN IN HOLE WITH UNDER REAMER ASSEMBLY BHA#8 AT 94 FPM TO 8,830'MD. PUMP AT 0.4 BPM WITH 750 PSI.DOWN WEIGHT 5K. 01:30 - 02:00 0.50 DRILL N PROD1 RUN TIE-IN LOG FROM 8,830'MD TO 8,858'MD AT 1.5 FPM WITH 17K DOWN WEIGHT.PUMP AT 0.4 BPM WITH 830 PSI.CORRECTION OF MINUS 0.5'. 02:00 - 02:15 0.25 DRILL N PROD1 RUN IN HOLE TO 9,330'MD AT 40 FPM WITH 17K DOWN WEIGHT.PUMP AT 0.34 BPM WITH 865 PSI OUT MM 0.6 BPM.MUD WEIGHT IN AND OUT 8.6 PPG.VOLUME 311 BBLS.IA-400 PSI,OA-290 PSI. 02:15 - 04:00 1.75 DRILL N PROD1 UNDER REAM DOWN FROM 9,330'MD AT 2-5 FPM PUMPING AT 2.5 BPM WITH 3130 PSI. DOWN WEIGHT 16.5K.MINIMUM VIBRATION (YELLOW BAND)AT TOOL TO START,WITH HIGHER VIBRATION INTERMITTENT.SLOW DOWN APPROACHING FIRST"X"NIPPLE AT 9,355'MD TO 1.3 FPM.FIRST NIPPLE FOUND WITH MOTOR STALL AT 9359.5'MD,4.5' DEEPER THAN THE SCHEMATIC WHICH CORRELATES WITH OUR CCL LOG.SHUT DOWN PUMP AND PULL UP ABOVE X NIPPLE. THIS ALLOWS THE REAMER ARMS TO RELAX. DROP DOWN TO 9,360'MD AND BRING PUMPS BACK ON TO EXTEND REAMER ARMS. THIS TAKES APPROXIMATELY 5 MINUTES FOR FULL EXTENSION. CONTINUE UNDER REAMING DOWN AT 2 FPM PUMPING AT 2.6 BPM WITH 3344 PSI.DOWN WEIGHT 17K.THE SECOND X NIPPLE WAS ENCOUNTERED AT 9,395.5'MD WITHOUT STALLING.THIS WAS 5.5'DEEPER THAN THE SCHEMATIC BUT ONLY 1'DEEPER THAN OUR CCL LOG. CONTINUE UNDER REAMING DOWN AT 2 FPM,PUMPING AT 2.6 BPM WITH 3310 PSI. DOWN WEIGHT 17K.DID NOT SEE THE XN NIPPLE AT 9,412'MD,(9,417'CCL).REAM TO 9,424'MD.UNDER REAM BACK UP TO 9,390' MD AND BACK DOWN TO 9,424'MD TO CLEAN UP AREA AROUND WHIPSTOCK SETTING DEPTH.PULL AT 3.5 FPM WITH 35K UP WEIGHT.PUMP AT 2.6 BPM WITH 3355 PSI. DID NOT SEE XN AT 9,412'MD OR THE X NIPPLE AT 9,395.5'MD ON THE UP STROKE OR ON THE DOWN STROKE. 04:00 - 04:30 0.50 DRILL N PROD1 UNDER REAM UP FROM 9,424'MD TO 9,330' MD AT 3 FPM WITH 33K UP WEIGHT.PUMP AT 2.6 BPM WITH 3355 PSI.MUD WEIGHT IN AND OUT 8.6 PPG.VOLUME 312 BBLS.IA-670 PSI, OA-500 PSI.DID NOT SEE XN NIPPLE OR 9,395'X NIPPLE,SAW SMALL BOBBLE AT 9,359'X NIPPLE.OPEN ECD.ALLOW THE REAMER ARMS TO RELAX INTO CLOSED POSITION. 04:30 - 05:00 0.50 DRILL N PROD1 RIH TO 9,450'MD AT 10 FPM WITH 17K DOWN WEIGHT.PUMP AT 2.8 BPM WITH 2230 PSI.AT BOTTOM,FLOW CHECK-STATIC. Printed 6/12/2013 10:56:32AM North America-ALASKA-BP Page 17 V Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) --------------- Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB 0-31 D-31A©82.93usft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (usft) 05:00 - 06:40 1.67 DRILL N PROD1 POOH FROM 9,450'MD AT 59 FPM WITH 33K UP WEIGHT.PUMP AT 3 BPM WITH 2250 PSI. MUD WEIGHT IN AND OUT 8.6 PPG.VOLUME 310 BBLS.IA-725 PSI,OA-600 PSI. INCREASE TO 100 FPM WITH 28K UP WEIGHT. • 06:40 - 06:50 0.17 DRILL N PROD1 PJSM TO LD THE UNDERREAMING BHA FLOW CHECK WELL 06:50 - 07:15 0.42 DRILL N PROD1 GOOD NO FLOW CHECK,TAG UP AND REMOVE THE INJECTOR TO LD THE BHA BHA OOH,UNDER REAMER BLADES SHOW A LITTLE WEAR BUT THE BUTTONS ARE IN GOOD SHAPE.LOAD OUT WEATHERFORD TOOLS. 07:15 - 08:10 0.92 STWHIP N DPRB 9,398.00 WEXIT LOAD BTT WS TOOLS ON RIG MU WS TO SETTING TOOL AND SCRIBE 08:10 - 08:20 0.17 STWHIP N DPRB 9,398.00 WEXIT PJSM TO MU THE WS BHA 08:20 - 09:00 0.67 STWHIP N DPRB 9,398.00 WEXIT MU BHA PU INJECTOR AND MU TO THE BHA 09:00 - 10:45 1.75 STWHIP N DPRB 9,398.00 WEXIT I RIH 10:45 - 11:00 0.25 STWHIP N DPRB 9,398.00 WEXIT LOG GAMMA TIE IN 11:00 - 11:25 0.42 STWHIP N DPRB 9,398.00 WEXIT CORRECT DEPTH-1',RIH TO 9230'TO LOG THE CCL TO 9425'BIT DEPTH 11:25 - 11:50 0.42 STWHIP N DPRB 9,398.00 WEXIT END CCL LOG,EVALUATE CCL BEFORE SETTING WS 11:50 - 12:25 0.58 STWHIP N DPRB 9,398.00 WEXIT CCL DATA IS GOOD,CALL ODE TO SET TOWS AT 9398'4'BELOW THE X-NIPPLE AT 9394' WE HAVE A VERBAL OK TO SET THE WS AT 9398' 11:55 PUH TO 9390'BIT DEPTH THEN RIH TO 9410.5'PLACING THE TOWS AT 9398' UP WT =40K 12:01 ON DEPTH AT 9410.5',ORIENT TO 180" TO PLACE TRAY AT THE TOP OF THE CASING FORA LOW SIDE EXIT 12:07 PU TO 32K-8K LESS THAN PU AND CLOSE THE EDC 12:10 EDC IS CLOSED,PRESSURE UP TO SET THE WS 12:13 WS SHEARED AT 3700 PSI,SET 5K DOWN BUT GOT 9.8K WITH NO MOVEMENT 12:15 PU AND WE ARE FREE FROM THE WS, STOP POOH,CIRC TO FILL HOLE THEN SHUT DOWN TO FLOW CHECK THE WELL 12:25 - 14:15 1.83 STWHIP N DPRB 9,398.00 WEXIT GOOD NO FLOW,POOH,HOLD PJSM FOR I LD/PU BHA,FLOWCHECK AGAIN AT SURFACE -NO FLOW. BUMP UP INTO LUBRICATOR& POP OFF. 14:15 - 14:40 0.42 STWHIP N DPRB 9,398.00 WEXIT LD WHIPSTOCK SETTING BHA. 14:40 - 15:15 0.58 STWHIP N DPRB 9,398.00 WEXIT MU NOZZLE&JET STACK. 15:15 - 15:20 0.08 STWHIP N DPRB 9,398.00 WEXIT INSTALL TEST JOINT TO FUNCTION TEST THE BOPE FROM THE OPS CAB 15:20 - 15:30 0.17 ! STWHIP N DPRB 9,398.00 WEXIT PJSM TO MU THE BHA 15:30 - 16:10 0.67STHIP N DPRB 9,398.00 EXIT MU THE MILLING BHA 16:10 - 16:30 0.33 rWW TWHIP N DPRB 9,398.00 WEXIT RIH Printed 6/12/2013 10 56:32AM North America-ALASKA-BP Page 18 VSS Operation Summary Report v Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date: X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 16:30 - 20:00 3.50 STWHIP N SFAL WEXIT COILED TUBING REEL SWIVEL BEARING IS GOING OUT AND NEEDS TO BE REPLACED PERFORM LOTO TO SECURE THE REEL AND INJECTOR THE INJECTOR BREAK WILL BE SET AND THE POWER PACK SHUT DOWN AND LOTO.THE UPPER SET OF COMB!RAMS WILL BE CLOSED FOR A 2ND BARRIER TO SECURE THE PIPE. WE HAVE 2 BARRIERS IN PLACE FOR THE • COIL WITH THE INNER REEL VALVE THAT WAS TESTED DURING THE BOP TEST AND • THE UPPER QUICK CHECK VALVES THAT WAS TESTED LAST NIGHT AFTER REHEADING COMPLETE REPAIR 20:00 - 20:15 0.25 STWHIP N SFAL WEXIT PRESSURE TEST INNER REAL TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED • MINUTES EACH-PASS.INSPECT COIL AT RAM CLOSING AREA-OK. 20:15 - 21:30 1.25 STWHIP N DPRB 9,398.00 WEXIT RUN IN HOLE AT 97 FPM WITH 1K TO 19K. PUMP AT 0.3 BPM WITH 690 PSI TO 880 PSI. MUD WEIGHT IN AND OUT 8.6 PPG,VOLUME :III278 BBLS.IA-160 PSI,OA-0 PSI. 21:30 - 21:45 0.25 STWHIP N DPRB 9,398.00 WEXIT LOG TIE-IN AT 1.5 FPM WITH 18K DOWN WEIGHT.PUMP AT 0.3 BPM WITH 800 PSI. .MINUS 1 FOOT CORRECTION. 21:45 - 22:00 0.25 STWHIP N DPRB 9,398.00 WEXIT I RIH AT 38 FPM WITH 19K DOWN WEIGHT. PUMP AT 0.3 BPM WITH 885 PSI.VOLUME 311 BBLS. _ 22:00 - 22:15 0.25 STWHIP N DPRB 9,398.00 WEXIT PUMP AT 0.3 BPM WITH 885 PSI.RUN DOWN AND TAG UP AT 9,399'MD.PULL BACK UP AND BRING PUMPS UP TO 2.5 BPM WITH 2300 PSI. TAG UP ON XN NIPPLE AND SEE MOTOR WORK,MILL OFF AND CONTINUE DOWN. PUMPING AT 2.5 BPM WITH 2225 PSI AND 18K DOWN WEIGHT.TAG UP AT 9,399'MD.FLAG PIPE.TOP OF WINDOWAT 9,399'MD. • 22:15 - 00:00 1.75 STWHIP N DPRB 9,398.00 WEXIT BEGIN MILLING OPERATIONS.PUMPAT2.5 BPM WITH 2370 PSI,2235 PSI FREE SPIN. DOWN WEIGHT 20K.WOB 0.83K.TIME DRILL AT 1 FPH WITH MAX WOB AT 3K AND LESS THAN 300 PSI MOTOR WORK. -22:46/9,399.5/18,8K DOWN WEIGHT/1130 WOB/2.5 BPM/2235 PSI FREE SPIN/2355 PSI WORKING PRESSURE -23:18/9,400.0/18,5K DOWN WEIGHT/1920 WOB/2.5 BPM/2235 PSI FREE SPIN/2425 PSI WORKING PRESSURE -23:50/9,400.5/19.0K DOWN WEIGHT/2160 WOB/2.5 BPM/2235 PSI FREE SPIN/2410 PSI WORKING PRESSURE !-00:00/9,401.7/18.0K DOWN WEIGHT/2780 • WOB/2.5 BPM/2235 PSI FREE SPIN/2450 PSI WORKING PRESSURE Printed 6/12/2013 10:56:32AM TREE= 4-1/16"CNVWELLFEAD= FMC D-31 S A �iY NOTES: HORIZONTAL _/2 CHROMETBG&7 5/8"CHROMELNR*** R** ACTUATOR ACTUATOR= BAKER INITIAL KB.ELE 82.93' BF.ELEV= 40.78' KOP= 2074' , ' LI 2110' —14-1/2"X NP,ID=3.813" Max Angle= 940 @11150' GAS LFT MANDRELS Datum IVO= 9323' ST MD TVD DEV TYPE VLV LATCH PORT DATE la3tumTVD= 8800'SS 4 3433 3416 0 KBG-2 DMY BK 0 06/25/12 10-3/4"CSG,45.5#,L-80,ID=9.953" H 3215' 3 5559 5427 29 KBG-2 DMY BK 0 06/25/12 L 2 7349 7065 6 KBG-2 DMY BK 0 01/27/04 1 9179 8800 53 KBG-2 DMY BK 0 01/27/04 Minimum ID = 3.80" c@ 9412' • I 9247' —14-1/2"X MP,D=3.813" MILLED 4-112" XN NIPPLE X >K 9258' —14-1/2"X 7-5/8" BKRS-3 R(R,0=3.875" \I I 9281' H4-1/2"X NP,D=3.813" 4-1/2"TBG,12.6#,13CR-80 VAN TOP, —I 9292' r l .0152 bpf,ID=3.958" I I 9305' H7-5/8"X 4-1/2"UNIQUE MACHNE OVERSHOT 4-1/2"TBG STUB(01/29/04) — 9305' / ' 9355' —14-1/2"X NP,ID=3.813" X v 9366' —17-5/8"X 4-1/2"TNV HBBP-T PKR,D=3-915" TBG PUNCH(04/30/13) —19368'-9372' /\a 0 9390' H4-1/2"X NP,D=3.813" 4-1/2"TBG,12.6#,L-80 BTC-M, —1 9424' 9412' H4-1/2"XN NP,MILLED TO 3.80"(12/08/12) .0152 bpf,ID=3.958' I I / \ 9424' H4-1/2"WLEG,ID=3.958" SET WI-FSTOCK(05/25/13) H 9398' 9423' —lamp TT LOGGED 05/13/97 SET WHPSTOCK(12/06/12) — 9440' ESTIMATED 9444' ELM " M 94, a TOP OF 4-1/2"LNR — 9639' I 9639' —17-5/8"X5-1/2"BKR ZXPLTP,D=3.959" I 1 9652' —17-5/8"X 5-1/2"BKR LNR HGR,D=3.87" 7-518"CSG,29.7#,USS-95 XO TO 13CR.80 H 9661' 9659' H5-1/2"X 4-1/2"XO,D=3.917" 7-5/8"CSG,29.7#,13CR-80,D=6.875" —1 9781' A9725' —14-1/2"BKR CBP(05/22/10) PERFORATION SUMMARY ' REF LOG:SPERRY SUN MV40VGR ON 06/25/96 ANGLE AT TOP PERF:91°@ 9910' Note:Refer to Production DB for historical pert data I SIZE SPF INTERVAL Opn/Sqz DATE SHOT 3-3/8" 6 9614-9634 S 05/22/10 12/09/12 I 2-3/4" 4 9910-10010 C 05/30/96 I 2-3/4" 4 10070-10340 C 06/30/96 2-3/4" 4 10400-10540 C 05/30/96 ' 2-3/4" 4 10620-11020 C 05/30/96 2-3/4" 4 11110-11330 C 02/06/98 ' 2-3/4" 4 11420-11500 C 02/06/98 I PBTD — 11717' 4-1/2"LNR,12.6#,L-80 BTC,.0152 bpf,D=3.953" H 11848' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 05/08/96 D9 IIM IAL COMP(PLUG BACK) 05/17/13 TQ/JMD TBG PUNCH(04/30/13) WELL: D-31A 06/01/96 139 SIDETRACK(D-31A) 05/17/13 PBS/JMD CMT RUG(05/04/13) FERMI No: 1960950 01/31/04 N4ES RWO AR No: 50-029-22672-01 12/17/12 NORDIC 2 CTD ST POSTPONED SEC 23,T11 N,R13E,1945'FSL&1068'FEL 01/01/13 PJC DRAW NG CORRECTIONS 01/08/13 PJC REFORMATING BP Exploration(Alaska) Page 1 of 1 • Schwartz, Guy L (DOA) From: Schwartz, Guy (DOA) L( ) Sent: Monday, December 17, 2012 10:59 AM To: 'Gorham, Bradley M' Subject: RE: D-31B Temporary Abandonment(212-168 (196-095) Brad, As we discussed since you are still working under the P &A sundry do not send in the 407 for the P&A yet. When you decide on the next plan of action please update me and I will let you know if a 403 sundry will be required before attempting the sidetrack again. Regards, Guy Schwartz ` Senior Petroleum Engineer SCANNED JUt. 2013 AOGCC 793-1226 (office) 444-3433 (cell) From: Gorham, Bradley M [mailto:Bradley.Gorham @bp.com] Sent: Monday, December 17, 2012 10:43 AM To: Schwartz, Guy L(DOA) Subject: D-31B Temporary Abandonment Guy, Drilling operations has been postponed on well D-31B due to failed milling operations while drilling with CTD. It has been decided to temporarily abandon this well while we evaluate the problem and engineer a solution. If anything new arises I will contact you and I will keep you posted with any forward strategy we develop. I also attached a schematic for your reference. Thanks, Brad Gorham BP Exploration (Alaska), Inc. Drilling Engineer W: (907)564-4649 C: (907)250-3209 Bradley.Gorham@bp.com 12/17/2012 • • \\ F 7 s THE STATE Alaska Oil and Gas _ '�� —!�� °'A LASKA Conservation Commission jr GOVERNOR SEAN PARNELL 333 West Seventh Avenue (4' 1. Anchorage, Alaska 99501 -3572 ALAS Main: 907.279.1 433 Fax: 907.276.7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. 196 , P.O. Box 196612 Anchorage, AK 99519 -6612 SCANNED JAN 2 5 ��� Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU D-3 1A Sundry Number: 312 -430 Dear Mr. McMullen: '. a Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Cathy P Foerster Chair DATED this Zgy of November, 2012. Y Encl. STATE OF ALASKA t ALASQOIL AND GAS CONSERVATION COMM ION . APPLICATION FOR SUNDRY APPROVAL N V�` OS Q 8 2012 20 AAC 25.280 1. Type of Request: " �' �' ` AOGCC ❑ Abandon c _2 Plug for Redrill ❑ Perforate New Pool ❑ Repair Well ❑ Change Approved Program /1,8uspend PO' • ❑ Plug Perforations ❑ Perforate ❑ Pull Tubing ❑ Time Extension ❑ Operations Shutdown ❑ Re -Enter Suspended Well ❑ Stimulate ❑ Alter Casing ❑ Other 2. Operator Name 4. Current Well Class 5. Permit To Drill Number BP Exploration (Alaska) Inc. ❑ Exploratory ❑ Stratigraphic 196 - 095 - 3. Address: ® Development ❑ Service 6. API Numbe P.O. Box 196612, Anchorage, Alaska 99519 - 6612 50.029 22672 - 01 - 00 ' 7. If perforating: 8. Well Name and Number: What Regulation or Convervation Order governs well spacing in this pool? PBU D -31A . Will planned perforations require a Spacing Exception? ❑ Yes 9. Property Designatior 10. Field / Pool(s): ADL 028285 • Prudhoe Bay Field / Prudhoe Bay Oil Pool 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft)• Effective Depth TVD (ft): Plugs (measured): Junk (measured): 11848' ' 9031' ' 11717' 9030' 9725' None Casing Length Size MD TVD Burst Collapse Structural Conductor 76' 20" 34' - 110' 34' - 110' 1490 470 Surface 3181' 10 -3/4" 35' - 3216' 35' - 3199' 5210 2480 Intermediate 9745' 7 -5/8" 36' - 9781' 36' - 9033' 6890 4790 Production Liner 2209' 4 - 1/2" 9639' - 11848' 9016' - 9031' 8430 7500 Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): 9614' - 11500' 9011' - 9031' 4 -1/2 ", 12.6# 13Cr80 / L -80 9424' Packers and SSSV Type: 7 -5/8" x 4-1/2" Baker S -3 packer; Packers and SSSV 9258' / 8846'; 7 -5/8" x 4 -1/2" TIW HBBP -T' packer MD (ft) and TVD (ft): 9366' / 8907' 12. Attachments: 13. Well Class after proposed work: IN Description Summary of Proposal ® BOP Sketch ❑ Detailed Operations Program ❑ Exploratory ❑ Stratigraphic ® Development ❑ Service 14. Estimated Date for 15. Well Status after proposed work: Commencing Operation November 21, 2012 ❑ Oil ❑ WINJ ❑ WDSPL ❑ Plugged 16. Verbal Approval: Date ❑ Gas ❑ GINJ ❑ GSTOR ❑ Abandoned Commission Representative: ❑ WAG ❑ SPLUG ® Suspended . 17. 1 hereby certify that the fore. • ing is true and correct to the best of my knowledge. Contact: Brad Gorham, 564 -4649 Printed Name: John A Clu -n/ Title: Engineering Team Leader E ail: Bradley.Gorham @bp.com Signature: ! Phone: 564 -4628 Date: ) I 3'{ - L Commission Use Only Conditions of ap , val: Notify Commission so that a representative may witness Sundry Number: ( 2_ ( ❑ Plug Integrity Ly B0P Test ❑ Mechanical Integrity Test ❑ Location Clearance c.�lJ Other: * 3 503 es.: Sol° e s Ace G 4 pI'�d4 ff_k. Zo A /` e- ZS, /i Z ) r A i F r sA ja..- /.,, b r Spacing Exception Required? ❑ Yes I No Subsequent Form Required: /b - "1 Al / APPROVED BY Approved B : a- COMMISSIONER THE COMMISSION Date: //- - /2-- N For rr Cf l '; s • ' L Approved plication is valid for 'iy n ti erAlRrov,e, % Submit In Duplicate ';\-.. '' • • To: Alaska Oil & Gas Conservation Commission From: Brad Gorham by CTD Engineer Date: November 7th, 2012 Re: D -31 B Sundry Approval History of D -31 B: D-31A is a rotary ST completed in May 1996 with 1210' of perforations in Zn 2A. The well produced until it was shut -in 6/03 for tubing holes. A RWO was completed in Jan 2004. The well was POP'd but the GOR continued to rise to MGOR over the next 4 years. Both IBPs were removed from the well in Oct 2008. Initial test results were good with flush oil but this was short - lived. In May 2010 a CIBP was set at 9725' to isolate the lateral and 20' of Zn 2B in the heel was shot. This provided minimal production benefit. D -31A is currently - shut -in for high GOR. Reason for Sidetrack: D -31A is not a competitive producer due to a high GOR, and there are no remaining wellwork options. The proposed sidetrack will access reserves in a -35 acre Zn 2A/2BI target (HOT play) in central D -pad. j Proposed plan for D -31 To mill XN nipple profile and then set a 4 -1/2" x 7" TT Whipstock in the pilot hole and drill a through tubing sidetrack with the SLB /Nordic 1 Coiled Tubing Drilling rig on or around December 05 2012. The existing perforations will be isolated by a cement plug to be laid in by service coil pre -rig as well as the primary cement job for the liner. The sidetrack, D- 31 B, will exit the existing 7 -5/8" casing and kick off and land in Zone 2 I. This sidetrack will be completed with a 3 -1/4" x 2 -7/8" liner in the production interval. The following describes the work planned and is submitted as an attachment to Form 10 -403. A schematic diagram of the proposed sidetrack is attached for reference. Co Per C ae / ` "/ ' r well mots R4 r afroo4 44 . - ( ( f r . � Ve(00% 7o CO f ete w, / r44- k //r 7-1 `ee t' i 4e fat4 r opre c/ Nom. 1„e // i4.1/ k ak TO - f /74/- gra 0- 7e CvfreIit 'f4XXe 'MI' 7 io f , 4'k 7o Te Co.-" 09- f �r /t�f ppfhtr yr Or Algol T(1Cre O% (4 74 L ogy c treC% is aprvl✓ «Ir dea'sid r/f4;te . Pre -Rig Work: • (scheduled to begin Novell ler 21st, 2012). 1. S Set DGLV's. 2. F MIT -OA (Passed - 2000 psi - 6/23/2012). MIT -IA (Passed - 3000 psi - 6/25/2012) 3. W PPPOT -IC (N /A) PPPOT -T (Passed - 5000 psi - 7/02/2012) Cycle LDS. 4. V PT MV, SV, WV. 5. S Dummy WS drift to 9,550' MD. 6. E Mill XN profile at 9,355' MD to 3.80 ". 7. E Set 7" PosiSet Plug to 9,600' MD 8. E Bail 19 gallons cement on top of PosiSet plug (equal to 10' in 7 -5/8" CSG) 9. F Test MIT -T to 500 psi./ 10. E Set 4 -1/2 x 7" TT Whipstock to 9,440'. 11.0 Bleed production flowlines down to zero and blind flange. 12.0 Remove wellhouse, level pad. 13. V Set TWC. -24hr prior to rig arrival. 1 Rig Work: (scheduled to begin on December 5, 2012). 1. MIRU and test BOPE to 250 psi low and 3500 psi high. Pull TVVC. 2. Mill 3.8" window at 9,440' MD and 10' of rathole. 3. Drill Build: 4.125" OH, 382' (21 °/100). 4. Drill Lateral: 4.125" OH, 1573' (12 °/100). 5. Run 3 -1/4" x 2 -7/8" L -80 liner from 9,360' - 11,395' MD. 6. Pump primary cement leaving TOC at 9,360' MD. 21 bbls of 15.8 ppg liner cmt planned ell) 7. Perform liner cleanout with mill, motor and MCNL /GR /CCL log 8. Test liner lap to 2,400 psi. 9. Perforate liner per asset instructions ( -200') 10. Freeze protect well, set BPV and RDMO. Post - Rig Work: 1. Re- install wellhouse and FL's and pull BPV. 2. Run generic GLV's. 3. Set liner top packer if needed with slickline & test to 2,400 psi Brad Gorham CTD Engineer 907 - 564 -4649 (Office) 907 - 250 -3209 (Cell) CC: Well File Sondra Stewman / Joseph Lastufka TREE = 4" CNV WELLHEAD= FMC r s e d D 31 B S A NOTES: HORIZONTAL WELL >70° @ 9564'. ACTUATOR= BAKER C ■ ***4- TBG & 7-518" CHROME LNR*** KB. PYEV = 82.93' BE ELEV = 40.78' KOP= 2074' , I 2110' H4 - 1/2" X NP, ID = 3.813" Max Angle = 94° @ 11150' Datum MD = 9323' GAS LFT MANDRELS Datum TVD= 8800' SS k ST MD TVD DEV TYPE VLV LATCH FORT DATE 4 3433 3416 0 KBG-2 DOME BK 16 02/06/04 10 -3/4" CSG, 45.5#, L -80, D = 9.953" — 3215' 3 5559 5427 29 KBG-2 S/0 BK 20 02/06/04 2 7349 7064 6 KBG-2 DMY BK 0 01/30/04 1 9179 8800 53 KBG-2 DMY BK 0 01/30/04 I ' 9247' — I4 -1/2" X NP, D = 3.813" Minimum ID = 3.725" @ 9412' 4 -1/2" XN NIPPLE z 9258• J-14 -1/2" X 7 -5 /8" S-3 PKR, D= 3.875" ' ' 9281' --14-1/2" X NP, D = 3.813" 1 41/2" TBG, 12.61/, 13CR - 80, ' - H 9291• I .0152 bpf, D = 3.958" r 1 9305' 1- 17 -5/8" X 4 -1/2" UNIQUE MACHINE OVERSHOT — 4-1/2" TBG STUB (01/29/04) 9305' , ' 9355' _I P D 4 - 1/2" X NIP, = 3.813" 3.7" Deployment Sleeve 9360 MD /<, 9366' I - 17 -5/8" X 4 -1/2" TIW I-BBP -T FKR, D = 3.915" 9390' —14-1/2" X NP, 13 = 3.813" 9424' — - 1/2" WLEG, ID = 4.0" 9412' H4 - 1r2 "XNNP,D= 3.725" 9423' H ELMD TT LOGGED • 05/13/97 \ , • ' / milled out to 3.80 pre-rig 14 -1/2" TBG, 12.64/, L -80, .0152 bpf, 13 = 3.958" H 9424• I — / 4 -1/2 x 7" TT Whipstock 9440 MDR 10,204 3 -1/4 x 2 -7/8 XO _ 7" Posiset Plug 9600 MD 2 -7/8 4.7# L -80 with 19 bbls cement to 9610 --------- ID 11,395 MD TOP OF 4 -1/2" LNR H 9639• I ----- 7 -518" CSG, 29.7 #, USS-95 XO TO 13CR-80 9661• I ^ 'N 9639' — 17 - 5/8" X 5 -1/2" BKR ZXP LTP, 13= 3.959" I 7 -5/8" CSG, 29.7 #, 13CR -80, 13 = 6.875" H 9781' I-- 9652' H7 X 5-1/2" BKR LNR HGR, 13 = 3.87" PERFORATION SUMMARY I REF LOG: SPERRY SW MWD/GR ON 06/25/96 9659' — I5 - 1/2" X 4-1/2" X0, ID = 3.917" ANGLE AT TOP PERF: 76° @ 9614' I Note: Refer to Production DB for historical pert data 9725' I — 4-1/2" BKR CBP (05/22/10) v SIZE SPF INTERVAL Opn/Sqz DATE ` 3-3/8" 6 9614 - 9634 0 05/22/10 2 -3/4" 4 9910 - 10010 C 05/30/96 2 -3/4" 4 10070 - 10340 C 06/30/96 2 -3/4" 4 10400 - 10540 C 05/30/96 %. 2 -3/4" 4 10620 - 11020 C 05/30/96 2 -3/4" 4 11110 - 11330 C 02/06/98 2 -3/4" 4 11420 - 11500 C 02/06/98 �••* •• ■ ••••• _ 4444 • 0_3 IA PBTD —I 11717' � 4-1/2" LNR, 12.6#, L -80, .0152 bpf, ID = 3.953" —I 11848• DATE REV BY COMMITS DATE REV BY COMMENTS PRUDHOE BAY UNIT 05/08/96 D9 ORIGINAL COMPLETION (PB) 04/13/08 CS/PJC DRAWING CORRECTIONS WELL D-31A 05/31/96 D9 SIDETRACK(D - 31A) 10/13/08 DMS/PJC PULL BPS (10/09/08) FERMI Na: 1960950 01/31104 N4ES RWO 05/30/10 J®VPJC CEP/ PERFS (05/22/10) AR No: 50- 029 - 22672 -01 02/06 /04 DAV/TLP GLV C/O SEC23, T11N, R13E, 1945' FSL & 1068' FEL 12/16/04 ROY/TLP SET IBPS 02/05/98 & 03/27/98 04/02/08 ATD/PJC TBG STUB & MISC CORRECTIONS BP Exploration (Alaska) TREE = 4" CW ACTu r FMC S NOTE H ORIZONTAL WELL >70° @ 9564'. A�T�R - _ --- � 6AKBR� • D-31A „ .. - 149, - ELEV = 82.93' CHROME TBXa & 7 -518 CHROME LNR" BF. B-B/ = 40.78' KOP= 2074' 2110' H4 -1/2" X tom', O = 3,813" 1 Max Angle = 94° © 11150' GAS LIFT MANDRELS LlatumMD= 9323' ST MD TVO DEV TYPE VLV LATCH PORT DATE Datum TVD = 8806' SS 4 3433 3416 0 KBG-2 OW BK 0 0625/12 1 10 -3/4" CSG, 45.5#, L -80, 0 = 9.953" H 3215' 3 5559 5427 29 KBG-2 DMY BK 0 06/25/12 2 7349 7065 6 KBG-2 DMY BK 0 01/30/04 1 _9179 8800 53 KBG-2 DMY _ BK 0 01/30/04 Minimum ID = 3.726" @ 9412' I 9247' H4 -1/2" x MP, 0 = 3.813 4 -1/2" XN NIPPLE 9258' 4-1/2" X 7 -5/8" S-3 PKR, 0 = 3.875" 1 9281' H4- 1/2"X MP, ID= 3.813" 1 41/2" TBG, 12.61, 13CR -S0. —{ 9291' j .0152 bpf, 0 = 3,958" 9305' H7 -5/8" X 41/2' UNIQUE MIACF* OVERSHOT 1 141/2" TBG STUB (01/29/04) 9305' 1 9355' 4-117 X MR 0= 3.813' L9366' H7 -5/8" X 4-12 TiW HBBRT PICK, 0= 3,915" 1 ' 1 9390' H41f7X NF, 0 =3.813"1 ' I 9412' J- 141/2" XN N P, 0 3.725" 1 1 4-1/7 TBG, 12.6#, L-80, .0152 bpf , D = 3.958" H 9424' 1 I 9424' H4-12" WLEG, D = 4.0" 1 I ( 9423' f aE Jv TT LOGGED 05/13197 I 1TOP OF 4-1/7 LM H 9639' 9639' H7 -5/8" X 5.12' BKR ZXP LIP, D = 3.959" 1 I 9652' H7 -518" X 5-1/7 BIM 1P HGR, 0 = 3.87" 1 1 7 -5/8" CSG, 29.71, USS-95 XO TO 13CAA0 H 9661' 1--X 9659' H5-12' X 4-1/2" X0, 0 = 3.917" I 9728 H4112" BKR C1BP(05122/10) 1 1 7 -5/8" CSG, 29.7 #, 13CR -80, 0= 6.875" H 9781' I I PERFORATION SUM NARY ' REF LOG: SPERRY SIAM IANCYGR ON 0625196 ANGLE AT TOP FEW: 76' @ 9614' Note: Refer to Roduction DB for historical pert data SIZE SPF FITER1/AL Opn/Sgz DATE 3-3/8" 6 9614 - 9634 0 0822/10 2-3/4" 4 9910 - 10010 C 0500+96 2 -3/4" 4 10070 - 10340 C 06/30196 2 -3/4" 4 10400 - 10540 C 05130196 �•••■ 2 -3/4" 4 10620 - 11020 C 05130/96 • • • • • 2-3/4" 4 11110 - 11330 C 02/06/98 ♦ ♦ 1 • x • 1 2 -3/4" 4 11420 - 11500 C 02106/98 PBTD 11717' Lzt-1 /2" LNR, 12.611, L -80, .0152 bpf, D = 1953" 11848' DATE REV BY COMMENTS DATE REV BY COMVENTS PRLDHOE BAY UNIT 05108/96 09 ORIGINAL COMPLETION (PB) 04/13/08 CS/PJC DRAWING CORRECTIONS WELL: D-31A 05/31/96 00 SIDETRACK (13U1A) 10/13/08 DMS/PJC PILL BPS (10/09/08) PB44[T No: "1960950 01131/04 N4E8 RWO 05/30/10 JBYPJC MP/ PERFS (05/22/10) API No: 50 -029- 22672 -01 02/06/04 DAV/TLP GLV 0/0 0628/12 GJF /JMD GLV C/O (06125/12) SEC 23, T11 N, R13E, 1945' FSL & 1068' FB.. 12/16104 ROY/TLP SET BFs 02105/98 & 0327/98 04/0208 AT0►PJC TBG STUB & MSC CORRECTIONS 8P Exploration (Alaska) • • Page 1 of 1 Subject: FW: INTENT PLUG for RE -DRILL WELLS: Corrected From: Davies, Stephen F (DOA) Sent: Monday, February 08, 2010 10:52 AM To: Foerster, Catherine P (DOA); McMains, Stephen E (DOA); Schwartz, Guy L (DOA); Saltmarsh, Arthur C (DOA); Aubert, Winton G (DOA) Subject: RE: INTENT PLUG for RE -DRILL WELLS: Corrected Revised procedure with an additional step per Cathy's comment: INTENT PLUG for RE -DRILL WELLS (IPBRD) Type Work Code in RBDMS 1. When a Form 10 -403 is submitted requesting approval to plug a well for redrill, the initial reviewer (Art / or Steve D.) will check to make sure that the "Plug for Redrill" box in the upper left corner of the 403 form is checked. If the "Abandon" box is checked, we will cross that erroneous entry out and initial it on both copies of the Form 10 -403 (AOGCC's and operator's copies). 2. On the Form 10 -403 if "Abandon" is checked in Box 15 (Well Status after proposed work), Art or Steve D. will cross that erroneous entry out and initial it on both copies of the Form 10 -403 (AOGCC's and V operator's copies). Instead, we will check the "Suspended" box. Guy and Winton will serve as quality control for steps 1 and 2. 3. When Steve McMains receives the Form 10 -403 with a check in the "Plug for Redrill" box, he will enter the existing code "IBPRD" into RBDMS. This code automatically generates a comment under the History tab stating "Intent: Plug for Redrill." 4. When Steve McMains receives any Form 10 -407, he will check the History tab in RBDMS for this comment. If he sees the "Intent: Plug for Redrill" code, and cannot find any evidence that a subsequent re -drill has been COMPLETED, he will assign a status of SUSPENDED to the well bore in RBDMS, no matter what status is listed on the 10 -407. Steve will also change the status on the 10 -407 form to SUSPENDED, and will date and initial his change. If Steve does not see the "Intent: Plug for Redrill" comment or code, he will enter the status listed on the Form 10 -407 into RBDMS. 5. When the Form 10 -407 for the redrill is received, Steve M. will change the original well's status from suspended to abandoned. 6. The first week of every January and July, Steve M. and Steve D. will check the "Well by Type Work Outstanding" user query in RBDMS to ensure that all of the Plug for Redrill wells have been handled properly. At this same time, Steve M. and Steve D. will also review the list of suspended wells for accuracy. Thanks, Steve D. file: //F: \Daily_ Document_ Record \Procedures_Instructions \FW INTENT PLUG for RE - DRI... 4/6/2012 • • Roby, David S (DOA) From: Lundgren, Carl E [Carl.Lundgren @bp.com] Sent: Tuesday, November 27, 2012 11:40 AM To: Roby, David S (DOA) Cc: O'Brien Authier, Erin (PRA); McMullen, John C; Singh, Nisha Subject: Sundry Application to Plug Well PBU D -31A for redrill Hi, David — I wanted to follow up with you regarding your question on the D -31A application for redrill and the current value of the well. You are correct that this well is capable of flow slightly under D -Pad average marginal GoR, but its main constraint is a velocity limit due to a tripling of flow lines at the surface. The proposed well is expected to flow at a lower gas rate and should be under velocity limits while flowing with current cycling twin wells (D -10 and D -11). It should also be noted that the last well test is suspected to be a bad test, at 1600bopd at a GOR of 33K, since we had 2 tests just before with a rate of 1000bopd and 57K GoR on average. Historically, the D-3 1 A is a horizontal welibore located in the center of D -pad. The well was drilled in 1996 and had an RWO in 01/2004. In 3/98 an IBP was set over 600ft toe perfs with no significant change in gas rate. There was decent production from the 510ft of Z2A/2B perfs from 3/98 thru 10/08 when the ibp was pulled (entire lateral open). This caused a small flush of oil and slight increase in gas. The well returned to MGOR within months. Early in 2009 the well was shut in for leaky divert valve — needed pad shut down for repair. In 5/10 the well was brought back on line, a plug was set to shut in the entire lateral, and 20' of perfs were added in the heel of the well in Z2B. Current production/value is from Z2B heel perfs only. The well has poor recharge, is velocity constrained and cannot compete with its twins (D -10 & D -11), and was released for sidetrack in 01/2011. The new location primarily targets Z2A/2B with a lateral, but the new well will be able to re- access the current remaining rate /value by adding similar Z2B heel perfs after the lateral with a staged perfs strategy. There is only —70' of standoff between the current heel perfs and the same Z2B sand in the heel of the new sidetrack. Let me know if this suffices or if you would like to discuss the benefits in more detail. Carl Carl Lundgren NWD Team Leader BP Alaska (907) 564 -4334 office (907) 440 -8298 cell email: Carl. Lundgren a�7,bp corn 1 ._. s • Roby, David S (DOA) From: Roby, David S (DOA) Sent: Friday, November 16, 2012 2:13 PM To: 'bradley.gorham @bp.com' Cc: Ferguson, Victoria L (DOA) Subject: Sundry Application to Plug Well PBU D -31A for redrill Brad, I am reviewing your application to plug the subject well for redrill and have a question about the justification for this work. In your application the stated reason is that the well is producing at a high GOR and is no longer competitive, but when I look at the production data for this well the GOR does not seem to be significantly higher than the average GOR from wells on D pad and the oil rate seems to still be pretty strong. The well has been cycling for a few years and no longer appears to be recovering when shut in, but the GOR seems to be comparable to other wells that are full time producers on this pad. So could you please provide a little more background information as to why you wish to plug this well at this time? Thanks, Dave Roby Reservoir Engineer Alaska Oil and Gas Conservation Commission (907)793 -1232 1 • bp BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 March 06, 2011 _M _ MAR 6 2.01 - � , 3 Mr. Tom Maunder RECEIVED Alaska Oil and Gas Conservation Commission 333 West 7 Avenue MAR 0 0 2011 Anchorage, Alaska 99501 Alaska 00 & Gas Cons. Commission Subject: Corrosion Inhibitor Treatments of GPB D Pad ttncitorage Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from D 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 1 r BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10 -404) Date: 03/04/11 Corrosion • Initial top Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # of cement pumped cement date inhibitor sealant date ft bbls ft na gal D -01A 1970780 50029200540100 NA N/A NA N/A 1/31/2011 D -03A 2001340 50029200570100 NA 14 NA 100.30 1/19/2011 D -04B 2031100 50029200560200 NA 4 NA 56.10 2/19/2011 D -05 1700060 50029200580000 NA 0 NA trace 1/19/2011 D -06A 1970430 50029201480100 NA 0.5 NA 3.40 1/7/2011 D -07B 2051810 50029201620200 NA 0.5 NA 3.40 1/7/2011 D -08A 2021230 50029203720100 NA 0.5 NA 3.40 2/9/2011 D -09A 1990850 50029203810100 NA 0.7 NA 3.40 1/19/2011 0-10 1790530 50029203890000 NA 2.3 NA 8.50 3/2/2011 D -11B 2100770 50029204350100 NA 3.5 NA 23.80 1/6/2011 D -12 1800150 50029204430000 NA 1.3 NA 5.10 1/15/2011 D -13A 2000810 50029204490100 NA 0.5 NA 2.55 3/31/2010 D -14A 1961530 50029204500100 NA 0.2 NA 0.85 1/15/2011 D -15A 1972120 50029204610100 NA 0.2 NA 0.85 1/15/2011 D -16A 2090250 50029206830100 NA 0.1 NA 0.85 2/20/2011 • D -17B 2021110 50029206920200 NA 1 NA 3.40 2/19/2011 D -18A 2011030 50029206940100 NA 5.4 NA 34.00 2/20/2011 D -198 2011120 50029207070200 NA 0.8 NA 3.40 2/19/2011 0-20 1820440 50029207800000 NA 0.5 NA 1.70 2/19/2011 D -21 1820520 50029207880000 NA 0.2 NA 3.40 2/10/2011 D -22C 2081210 50029207370300 NA 0.2 NA 0.85 2/10/2011 D -23A 1961880 50029207380100 NA 13.5 NA 93.50 3/1/2011 D -24 1852990 50029215060000 NA 0.9 NA 6.80 1/8/2011 D -25A 2000240 50029215220100 NA 6 NA 32.30 1/15/2011 D -26B 2060980 50029215300200 NA 0.8 NA 3.40 2/19/2011 0-27A 2051930 50029215430100 NA 0.3 NA 1.70 2/10/2011 D -28B 2090890 50029215560200 NA 0.3 NA 1.70 2/10/2011 0-29 1852530 50029214700000 NA 13.3 NA 27.20 1/16/2011 ..............> D -30B 2061840 50029226460200 NA 2.2 NA 13.60 12/25/2010 D-31A 1960950 50029226720100 NA 3.3 NA 27.20 1/19/2011 0-33 1960360 50029226520000 NA 2.2 NA 18.70 1/8/2011 STATE OF ALASKA ALASKA AND GAS CONSERVATION COMMISS REPORT OF SUNDRY WELL OPERATIONS R~~G'VGQ 1. Operations Abandon ^ Repair Well ^ Plug Perforations ^ Stimulate ^ O I p Performed: Alter Casing ^ Pull Tubing^ Perforate New Pool ^ Waiver^ Time Extension ~OITNII~SS10(1 ~ G Change Approved Program ^ Operat. Shutdown ^ flI1.-• Perforate Q Re-ente SQ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: . Permit to Dri NO Name: Development ~ Exploratory ^ 196-0950 3. Address: P.O. Box 196612 Stratigraphic^ Service ^ .API Number: Anchorage, AK 99519-6612 50-029-22672-01-00 8. Property Designation (Lease Number) : ~ 9. Well Name and Number: \ ADLO-028285 PBU D-31A 10. Field/Pool(s): PRUDHOE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 11848 feet Plugs (measured) 9725' 11070' feet true vertical 9030.71 feet Junk (measured) None feet Effective Depth measured 11721 feet Packer (measured) 9258 9366 true vertical 9030.39 feet (true vertical) 8846 8907 Casing Length Size MD ND Burst Collapse Structural Conductor 110 20" 91.5# H-40 SURFACE - 110 SURFACE - 110 1490 470 Surface 3181 10-3/4" 45.5# L-80 SURFACE - 3216 SURFACE - 3199 5210 2480 Intermediate 9745 7-5/8" 29.7# 13CR80 SURFACE - 9781 SURFACE - 9033 6890 4790 Production Liner 2196 4-1/2"12.6# L-80 9639 - 11848 9019 - 9031 8430 7500 Liner Perforation depth: Measured depth: SEE ATTACHED - True Vertical depth: _ _ _ _ - Tubing: (size, grade, measured and true vertical depth) 4-1/2" 12.6# 13Cr80 38 - 9291 38 - 8865 Packers and SSSV (type, measured and true vertical depth) 4-1 /2" Baker S-3 Perm Packer 9258 8846 4-1/2" TIW HBBP-T Packer 9366 8907 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: ~ r~,~°~~1~ "` ' -'I ~''~ ~~ ~~ ~ ~~~ 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing pressure Prior to well operation: SI Subsequent to operation: 1382 51594 70 1403 14. Attachments: .Well Class after work: Copies of Logs and Surveys Run Exploratory^ Development Q Service ^ Daily Report of Well Operations X 6. Well Status after work: Oil ~ Gas WDSPL GSTOR ^ WAG ^ GINJ ^ WINJ ^ SPLUG ^ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: NA Contact Gary Preble Printed Name Gary Pre Title Data Management Engineer Signature ' ~ Phone 564-4944 Date 5/24/2010 mini iv-~rvv ~~cvwcu ~iwva ~ ~L7VIrIV PIPII N•V LY "`^ ~•• ~•~ D-31 A 196-095 PERF ATTArNMFNT n LJ Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base D-31A 5/30/96 PER 9,910. 10,010. 9,032.49 9,029.99 D-31A 5/30/96 PER 10,400. 10,540. 9,032.08 9,027.81 D-31A 5/30/96 PER 10,620. 11,020. 9,030.32 9,032.8 D-31A 5/30196 PER 11,110. 11,330. 9,031.95 9,025.27 D-31A 5/30/96 PER 11,420. 11,500. 9,030.2 9,030.97 D-31A 6/30/96 PER 10,070. 10,340. 9,029.82 9,032.73 D-31A 2/6/98 BPS 11,070. 11,080. 9,032.78 9,032.7 D-31A 3/27/98 BPS 10,580. 10,590. 9,028.86 9,029.22 D-31A 10/9/08 BPP 10,580. 11,080. 9,028.86 9,032.7 D-31A 5/22/10 APF 9,614. 9,634. 9,010.6 9,015.06 D-31A 5/22/10 BPS 9,725. 11,500. 9,029.27 9,030.97 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG P ULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE • D-31A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY ACTIVITYDATE SUMMARY 5/21/2010~Assist E-line (Pre- e-line) "**Continue AWGRS on 05-22-10*"* 5/21/2010 ***WELL SHUT-IN UPON ARRIVAL**" INITIAL T/I/0=2450/580/0. €DRIFT THROUGH DEVIATION USING TRACTORS. COULD NOT GET PAST ;9639' AT LINEAR TOP. ***JOB CONTINUED ON 22-MAY-2010**" . _ _ ~ ~ ~_~ m_~__ ___. _ _._~ ~ ____ _ ~..._ ___.~ .____ . ~ ~. 5/22/2010 ***Continued AWGRS from 05-21 10*** T/I/O=SSV/560/20 Temp=S1 Assist `E-line (Pre- a-line) Freeze protected flow line with 10 bbls neat methanol and ;139. bbls crude. FWHP's=SSV/560/20 E-line on well at departure 5/22/2010**"JOB CONTINUED FROM 21-MAY-2010*""(E-LINE WELLTEC/DRIFT) DRIFT WITH 3.593" GAUGE RING JB ON WELLTEC TRACTOR UNABLE TO G ET PAST 9638' IDRIFT WITH 3.58" SWEDGE ON WELLTEC TRACTOR ,BAKER CIBP PLUG SET: SET DEPTH: 9725'. CCL TO MID-ELEMENT: 9.0'. PERFORATION: 20' 3.375" HSD GUN. 3406 POWER JET, HMX. PERF INTERVAL: 9614'-9634'. CCL STOP DEPTH: 9604.6', CCL TO TOP SHOT: 9.4' ***JOB CONTINUED ON 23-MAY-2010*** CONTINUE POOH AND RIG-DOWN. SSV=O, M=O, W=C, SWAB=C, CASING=OTG. `FINAL T/I/O: 2250/550/0. ~"*''JOB COMPLETE*** 5/23/2010=*""JOB CONTINUED FROM 22-MAY-2010*"*(E-LINE WELLTEC/DRIFT) FLUIDS PUMPED BBLS 17 60/40 METH 3 DIESEL 20 Total TREE _ 4" CNV WELLHEAD= FMC ACTUATOR = BAKER C KB. ELEV = 82.93' BF. ELEV = 40.78' KOP = .~~,,~,m.-. 2074' Max Angie = 94° @ 11150' I Datum MD = 9323' Datum TV D = 8800' SS 10-314" CSG, 45.5#, L-80, ID = 9.953" Minimum ID = 3.725" @ 9412' 4-1 /2" XN NIPPLE 4-112" TBG, 12.6#, 13CR-80, .0152 bpf, ID = 3.958" 4-112" TBG STUB (01/29104) ~ 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" ~ TOP OF 4-112" LNR ~ 7-5/8" CSG, 29.7#, USS-95 XO TO 13CR-80 ~ 7-5/8" CSG, 29.7#, 13CR-80, ID = 6.875" PERFORATION SUMMARY REF LOG: SPERRY SUN MWD/GR ON 06/25/96 A NGLE AT TOP PERF: 91 ° @ 9910' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-3/4" 4 9910 - 10010 O 05/30/96 2-3/4" 4 10070 - 10340 O 06/30/96 2-314" 4 10400 - 10540 O 05/30/96 2-3/4" 4 10620 - 11020 O 05/30/96 2-3/4" 4 11110 - 11330 O 02/06/98 2-3/4" 4 11420 - 11500 O 02/06/98 ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3433 3416 0 KBG-2 DOME BK 16 02/06(04 3 5559 5427 29 KBG-2 S/O BK 20 02/08/04 2 7349 7064 6 KBG-2 DMY BK 0 01/30/04 1 9179 8800 53 KBG-2 DMY BK 0 01/30104 9247' ~~ 4-1 /2" X NIP, ID = 3.813" I - 9258 4-112" X 7-518" S-3 PKR, ID = 3.875" 92$1' 4-1/2" X NIP, ID = 3.813" - 9305 7-5/8" X 4-1/2" UNIQUE MACHINE OVERSHOT - . ~~~~9355~ 4-1/2" X NIP, ID = 3.813" r- 9366 7-5/8" X 4-1/2" TMr HBBP-T PKR, ID = 3.915" 9390' 4-1/2" X NIP, ID = 3.813' I I'-- 9412 4-1/2" XN NIP, ID = 3.725" 9424 4-1/2" WLEG, ID=4.0" 9423 ELMD TT LOGGED 05/13/97 9639 7-518" X 5-1 /2" BKR ZXP LTP, ID = 3.959" 9652' 7-5/8" X 5-1/2" BKR LNR HGR, ID = 3.87" 9659 -{5-112" X 4-1 /2" XO, ID = 3.917" ~er~ Cj'G1~(~ ~F~ 3~ ' GiBP ~7~5 Ho PBTD -~ 11717• 4-1/2" LNR, 12.6#, L-80, .0152 bpf, ID = 3.953" DATE REV BY COMMENTS DATE REV BY COMMENTS 05108!96 D9 ORIGINAL COMPLETION {PB} 04/13!08 CS/PJC DRAWING CORRECTIONS 05131/96 D9 SIDETRACK {D-31A) 10!13/08 DMS/PJC PULL IBPS (10(09/08) 01/31/04 N4ES RWO 02/06/04 DAV/TLP GlV C/O 12/16!04 ROY/TLP SET IBPs 02/05/98 & 03/27/98 04/02/08 ATD/PJC TBG STUB & MISC CORRECTIONS PRUDHOE BAY UNIT WELL: D-31A PERMTf No: 1960950 API No: 50-029-22672-01 SEC 23, T11 N, R13E, 1945' FSL & 1068' FEL BP Exploration (Alaska) 2110` -j4-1/2" X NIP, ID = 3.813" GAS LIFT MANDRELS STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed: 0 Abandon 0 Alter Casing 0 Change Approved Program 2. Operator Name: BP Exploration (Alaska) Inc. 3. Address: P.O. Box 196612, Anchorage. Alaska 99519-6612 7. KB Elevation (ft): 82.93' 0 Suspend 0 Repair Well 1m Pull Tubing 0 Operation Shutdown 0 Perforate 0 Plug Perforations 0 Stimulate 0 Perforate New Pool 0 Re-Enter Suspended Well 4. Current Well Class: IBI Development 0 Exploratory 0 Stratigraphic Test 0 Service 0 Waiver 0 Time Extension 0 Annular Disposal 5. Permit To Drill Number 196-095 6. API Number: 50-029-22672-01-00 0 Other 9. Well Name and Number: PBU D.31A 8. Property Designation: ADL 028285 10. Field / Pool(s): Prudhoe Bay Field / Prudhoe Bay Pool 11. Present well condition summary Total depth: measured 11848 feet true vertical 9031 feet Plugs (measured) 10580' & 11070' Effective depth: measured 10580 feet Junk (measured) None true vertical 9029 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" 110' 110' 1490 470 Surface 3181' 10-3/4" 3216' 3199' 5210 2480 Intermediate 9745' 7-5/8" 9781' 9033' 6890 4790 Production Liner 2196' 4-1/2" 9652' - 11848' 9019' - 9031' 8430 7500 Perforation Depth MD (ft): Perforation Depth TVD (ft): 9910' - 10540' 9032' - 9028' Tubing Size (size, grade, and measured depth): 4-1/2", 12.6# L 13Cr / L-80 9424' Packers and SSSV (type and measured depth): 7-5/8" x 4-1/2" TIW 'HBBP-T' packer; 7-5/8" x 4-1/2" Baker 9366'; 9258' 'S-3' packer; 4-1/2" HES SSSV Nipple Ii, '1f,J1:~: 12. Stimulation or cement squeeze summary: Intervals treated (measured): MAR 1 5 200<" Treatment description including volumes used and final pressure: 13. Re resentative Dail Gas-Mcf 41897 38344 Tubin Pressure 641 648 Oil-Bbl Prior to well operation: 1265 Subsequent to operation: 1262 14. Attachments: 0 Copies of Logs and Surveys run IBI Daily Report of Well Operations IBI Well Schematic Diagram IBI Development 0 Service 0 WINJ 0 WDSPL Sundry Number or N/A if C.O. Exempt: N/A Printed Name Terrie Hubble Title Technical Assistant Signature Form 10-404 Revised 12/2003 ~.. " Date 03Æ,,! , ' .~ fL RBDNS B. , ~ Well: Field: API: Permit: 0-31 A Prudhoe Bay Unit 50-029-22672-01-00 196-095 Accept: Spud: Release: Rig: 01/26/04 NIA 01/31/04 Nabors 4ES PRE-RIG WORK 12/24/03 T/I/0=220/30010. MITOA TO 2000 PSI PASSED. (RWO DIAGNOSTICS). PRESSURED OA TO 2000 PSI WITH 5.6 BBlS OF CRUDE. OA lOST 100 PSI IN 15 MINUTES AND 40 PSI IN SECOND 15 MINUTES FOR A TOTAL OF 140 PSI IN 30 MINUTES. BLED OA DOWN TO 0 PSI. FINAL WHP'S =220/30010. 01/04/04 ATTEMPT TO SET KEN KATCHER. SAT DOWN @ 5384' SlM. POOH. SMAll AMOUNT OF PARAFFIN ON TOOLS. 01/05/04 HIT OBSTRUCTION @ 2673' SlM WI 3.73" GAUGE RING. 01/07/04 DRIFT WI 3.79 TAPERED CENTRALIZER TO 9379' SlMD. TIGHT SPOTS @ 2678 & 5371, WORK TOOLS UNTil SMOOTH PUll THRU. SET JUNK CATCHER @ 9374' SlMD. OAl 114.5", TOP SUB = 4" X 3.765 OD, BODY 00 = 3.525 00/3.0" 10. BOTTOM SUB = 3 5/8" X 3.760 00. 01/11/04 CUT TUBING 9326' WITH 35/8" CHC, TOOLS STUCK & lEFT IN HOLE, TOP OF FISH 9298'. STRING SHOT 9315'.9327' PRIOR TO CUT. WEll SHUT IN. T/I/0=200/20010 PUMP 10 BBlS 60/40 METH-WATER & 2 BBlS DIESEL TO ATTEMPT TO FREE UP SWS TOOL STRING FINAL WHP'S=850/85010. 01/12/04 MADE SEVERAL ATTEMPTS WI VARIOUS OVERSHOTS TO FISH TOOLS. UNABLE TO PASS TIGHT SPOT @ 2673' SlM. RAN 3.5" & 2.5" LIB'S. BOTH SHOW JAGGED TBG (PARTED?) RAN 3.625" CENT THRU TIGHT SPOT. RIH WI 2.5" CENT / 2" JDC & lATCH FISH @ 9258' SlM. JARRED UP UNTil TOOL SHEARED. RE-RUN TO SAME & CONTINUE JARRING. 01/13/04 lATCH AND RETRIEVE, E-LlNE FISH WI CHEMICAL CUTTER @ 9258' SlM. 01/16/04 CIRC OUT, CMIT IA X T TO 3500 PSI. PASSED (PRE-RWO). PUMPED A TOTAL 500 BBlS OF WATER, 10 BBlS OF METH SPACER, 110 BBlS DIESEL DOWN TBG. SO U-TUBE FOR 1 HR., PERFORMED CMIT IA X TBG TO 3500 PSI. PRESSURED UP IA X T WI 8.1 BBlS DIESEL (3500, 3500, 300), 1 ST TEST lOST 40 PSI ON TBG AND 60 PSI ON lA, (3460, 3440, 260), 2ND 15 MINS lOST 10 PSI ON TBG AND 20 PSI ON lA, (3450, 3420, 140) FOR A TOTAL OF 50 PSI ON TBG AND 80 PSI ON IA IN 30 MINS, (3450, 3420, 1400). BLEED IA X T DOWN. RDMO. FINAL WHP'S 0/0/0. BP EXPLORATION Page 1 of 5 Operations Summary Report Legal Well Name: D-31 A Common Well Name: D-31 A Spud Date: Event Name: WORKOVER Start: 1/26/2004 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: 1/31/2004 Rig Name: NABORS 4ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 1/25/2004 00:00 - 06:00 6.00 MOB P PRE Move Rig and Equipment from J-Pad to D-31 a. 06:00 - 10:00 4.00 RIGU P PRE Spot Sub Base over Well. Spot Pipe Shed, Pits, and Tiger Tank. Raise and scope Derrick. 10:00 - 13:00 3.00 RIGU P DECOMP Take on Sea Water in Rig Pits. Lay lines to Tiger Tank. Hook up lines to Production Tree. Thaw out Reverse Line. Accepted Rig at 10:00 hrs. 13:00 - 14:00 1.00 WHSUR P DECOMP Rig up Lubricator. Pull BPV. Lay down same. Well on slight vac. 14:00 - 14:30 0.50 KILL P DECOMP Hold PJSM with Co Rep, TP, and Crew. 14:30 - 00:00 9.50 KILL P DECOMP Test lines to 3,500 psi. Reverse circulate diesel and oil from Tbg. Circulate well around with 120 deg F. Sea Water. Still getting back Diesel/Oil/Sea Water, and some Gas after 1 1/2 circulations. Monitor Well...Tbg 50 psi Annu 60 psi. Continue circulating and monitoring Well...gradually getting out hydrocarbons while displacing hole with Sea Water. It appears that we are not able to circulate through the chemical cut at 9,326-ft due to holes or possibly "parted pipe" some where in the shallow section (possibly around 2,675' area) of the Well. 1/26/2004 00:00 - 04:30 4.50 KILL P DECOMP Continued to circulate and monitor Well. Finally got most of the Diesel/Oil out of Wellbore. Returns = 8.5 Ib/gal. Monitor for 30 min. No flow...small amount of gas "break-out". Tbg = 0 psi. Annu = 0 psi. 04:30 - 05:30 1.00 PULL P DECOMP Set and test TWC. Blow down lines. Drain Tree. 05:30 - 07:00 1.50 WHSUR P DECOMP Nipple down Tree. Inspect Tbg Hanger Thrds...good. 07:00 - 11 :30 4.50 BOPSU¡:; P DECOMP Nipple up BOP Stack. Change-out Hydrill ElemenLdue to "fair wear and tear". 11 :30 - 13:00 1.50 BOPSU¡:; P DECOMP Function test BOPE. RU test Equipment. Grease Choke Manifold. 13:00 - 16:00 3.00 BOPSU¡:; P DECOMP Test BOPE per BP/AOGCC requirements at 250/3,500 psi. Good test. State's right to witness test waived by C. Sheve. 16:00 - 16:30 0.50 BOPSUF P DECOMP R/D test equipment, bleed down lines. 16:30 -17:30 1.00 BOPSUF P DECOMP Pull TWC. 17:30 - 18:30 1.00 KILL P DECOMP Hookup to Tiger Tank and bleed down CP and TP of 110 psi. Bled down in less than One minute. Circulate crude and gas to Tiger Tank. SI well. Lay down lubricator. 18:30 - 20:30 2.00 KILL P DECOMP Realign manifold, and circulate 100 Bbls @ 5 BPM, 400 psi down tubing and through gas buster. Returns to pit are mostly clear fluid. SD pump and monitor well for returns--no flow. SI well for 10 minutes, TP 0, CP O. Verify well is dead. P/U landing joint and stab into hanger. Again, verify well is dead. 20:30 - 21 :30 1.00 PULL P DECOMP BOLDS, pull up on landing joint. Hanger pulled free @ 45,000 Ibs, pulled to floor @ 37,000 Ibs. Blocks weigh 12,000 Ibs, free pipe is 25,000 Ibs or roughly equal to the weight of the pipe above where the tubing was prognosed to be parted via W/L measurement @ 2673' MD. 21 :30 - 22:00 0.50 PULL P DECOMP LID landing joint and hanger, and verify well is dead. R/U SWS spooler and prepare to POH w/4-1/2" tbg string. 22:00 - 00:00 2.00 PULL P DECOMP POH 4-1/2" tubing string and lay down. At the 9th joint, it appeared that the SSSV @ 2174' MD may have parted from the tubing string. Tubing string was worked slowly uphole while keeping spooler tension on control lines. 1/27/2004 00:00 - 01 :00 1.00 PULL P DECOMP Pulled and LD 54 jts; SSSV just below floor with many wraps of SS control lines and numerous SS bands intertwined. Printed: 2/2/2004 2:21 :36 PM BP EXPLORATION Page 2 of 5 Operations Summary Report Legal Well Name: D-31 A Common Well Name: D-31 A Spud Date: Event Name: WORKOVER Start: 1/26/2004 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: 1/31/2004 Rig Name: NABORS 4ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 1/27/2004 01 :00 - 01 :45 0.75 PULL P DECOMP Pull SSSV w/1 0' pup each side to floor; cut SS control lines and secure same to spooler. Remove and/or count SS bands from viper nest ensnarling SSSV, use block latching tool to clear bands from BOPE. Recovered 35 of 57 bands originally installed. 01 :45 - 03:00 1.25 PULL P DECOMP Resume POH and UD 4-112". Stop operation to circulate to clean oil from tubing. Resume POH. Last joint to floor at 0245 hrs. Joint #67 parted just above the bottom collar; 39.42' of this jt recovered. Severe corrosion and many holes found in this joint and joints above. All joints recovered showed signs of corrosion, worsening with depth. 03:00 - 05:30 2.50 FISH P DECOMP M/U BHA #1 as follows: Crank Shaft Rope Spear, XO, Stop Sub, Drain Sub, Bumper Jar, Oil Jar, 9 ea 4 3/4" Drill Collars. 05:30 - 06:00 0.50 FISH P DECOMP RIH w/ BHA #1. Single in with 3 1/2" Drill Pipe from Pipe shed. 06:00 - 06:30 0.50 FISH P DECOMP Service Rig. 06:30 - 08:00 1.50 FISH P DECOMP Continue single in with 3 1/2" DP (75 Jts). 08:00 - 08:30 0.50 FISH P DECOMP Tagged TOF at 2,692' 4es kb. Worked tools. Torqued up. Pick-up with 2K drag. Went back to TOF...no torque or drag second time. 08:30 - 10:00 1.50 FISH P DECOMP Monitor well. POOH with 3 1/2" DP...stand back in Derrick. Stand back Drill Collars. 10:00 - 10:30 0.50 FISH P DECOMP BHA #1 at surface...no recovery. LD BHA. Clear floor. 10:30 - 11 :00 0.50 FISH P DECOMP Prep to fish Tbg collar looking up on Jt #68. Make up BHA #2 as follows: Overshot dressed with 5 1/4" - 5 3/16" Grapple, Bushing, Extention, Drive Sub, Bumper Jar, 9 ea Drill Collars. 11 :00 - 12:30 1.50 FISH P DECOMP TIH with BHA #2 and 75 jts 3 1/2" DP. PUW = 52K...SQW = 52K. 12:30 - 13:00 0.50 FISH P DECOMP Pick-up Jt #76. Continue in hole and tagged 6' high at 2,685'. Pushing junk (Bands?) down hole. Taking weight at 2,689'. Worked Tools. Tried to rotate through junk...No-Joy...unable to get down to TOF. 13:00 - 14:30 1.50 FISH P DECOMP POOH with 3 1/2" DP and BHA #2. Discuss next BHA and plan forward with Anch Engs. 14:30 -15:00 0.50 FISH P DECOMP LD BHA #2. No marks on the outside or on the lip of Overshot. Nothing jamed up inside. 15:00 - 18:00 3.00 FISH P DECOMP PU BHA #3 as follows: 6 3/4" Shoe, 2 Jts 6 3/8" WP, Drive Sub, Bumper Sub, Oil Jar, 9 ea Drill Collars RIH on 3 1/2" DP to 2677'. 18:00 - 19:30 1.50 FISH P DECOMP P/U kelly & break circulation. 3 BPM @ 200 psi. Tag up @ 2689'. Wash over tubing stub from 2689 to 2744'. P/U 56K, S/O 56K, Rot 56K. 30 RPMs, Torq 4K. Torqued up @ 2692' , then washed ahead w/ no problem. Worked pipe up & down several times. Incresed pump to 5 BPM @ 425 psi. 19:30 - 21 :30 2.00 FISH P DECOMP Getting gas to surface. Con't to circulate @ 5 BPM, 425 psi. Circulated total of 530 Bbls. Monitor well. Well dead. Hole staying full. 21 :30 - 23:00 1.50 FISH P DECOMP POOH, UD 2 singles & stand back 24 stds. UD BHA # 3. 23:00 - 00:00 1.00 FISH P DECOMP M/U BHA # 4 as follows: 6 3/8" Overshot w/5 1/4" grapple, 6 3/8" Overshot bushing, 6 3/8" extension, Drive Sub, Bumper Jar, 9* 43/4" DCs. TL 298.32'. Start in hole w/ BHA #4. 1/28/2004 00:00 - 01 :00 1.00 FISH P DECOMP Finish RIH w/ BHA #4. 01 :00 - 01 :30 0.50 FISH P DECOMP P/U kelly break circulation, 2 BPM @ 200 psi. P/U 56K, S/O 56K, Rot 56K. Work down over fish @ 2692' ( collar) & attempt Printed: 2/2/2004 2:21 :36 PM BP EXPLORATION Page 3 of 5 Operations Summary Report Legal Well Name: D-31 A Common Well Name: D-31 A Spud Date: Event Name: WORKOVER Start: 1/26/2004 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: 1/31/2004 Rig Name: NABORS 4ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 1/28/2004 01 :00 - 01 :30 0.50 FISH P DECOMP to engauge fish. P/U wi 2K overpull & Overshot pulls free. Attempt several times wi some rotation, no luck. Grapple is too large or stop ring too small. 01 :30 - 03:00 1.50 FISH P DECOMP POOH & inspect Overshot & grapple. Had indication on grapple where it contacted tbg collar. Recovered 1 control line band in O/S. Change out to 5.125" grapple 03:00 - 04:30 1.50 FISH P DECOMP RIH wi redressed BHA to 2681'. 04:30 - 05:00 0.50 FISH P DECaMP P/U kelly & break circulation, ease down over fish to 2692'. P/U wi overpull. Pull to 120K, 64K overpull. String parted & weight dropped to 85K. Have 31 K additional weight. P/U tool joint to floor. 05:00 - 06:00 1.00 FISH P DECOMP Circulate bottoms up @ 5.3 BPM, 500 psi. Circulate out gas ( less than before) 06:00 - 08:00 2.00 FISH P DECOMP POOH with 3 1/2" Drill Pipe. Stand Drill Pipe and Drill Collars in Derrick. 08:00 - 08:30 0.50 FISH P DECOMP Break out Overshot from Fish. LD BHA #5 08:30 - 09:00 0.50 PULL P DECOMP Rig up to handle 4 1/2" Tbg. 09:00 - 11 :00 2.00 PULL P DECOMP POOH with 4 1/2" Production Tbg in very poor condition. Single down in Pipe Shed. Recovered 68 more Jts and 1 GLM. Total 4 1/2" Tbg recovered to date = 135 Jts, 1 SSSV, and 1 GLM. Top of next fish is a Collar looking up on Jt #136 at 5,402' +1-. 11 :00 - 12:00 1.00 FISH P DECOMP Pick-up BHA #6 as follows: 63/8" OS w/5 1/8" Grapple, Bushing, Extention, Drive Sub, Bumper Sub, Oil Jar, 9 ea Drill Collars, 12:00 - 15:30 3.50 FISH P DECaMP RIH wi BHA #6 on 3 1/2" DP to 5390'. 15:30 - 16:00 0.50 FISH P DECaMP P/U kelly & break circulation. P/U 135K, SIO 120K, ROT 123K. Work down over fish & engauge Overshot. P/U to 150K & fish came free. Pull tool jt to floor. String weight = 140K. 16:00 - 18:00 2.00 FISH P DECOMP Circulate bottoms up. Gas to surface. Pumped 1 1/2 annular volume. Monitor well, flowing. Con't to circulate gas out. 18:00 - 19:00 1.00 FISH P DECOMP Circulate well at 5 BPM @ 900 psi. Pumped 35 Bbls. SID & monitor well. Well dead. Set back kelly & prepare to pull out of hole. 19:00 - 21 :00 2.00 FISH P DECaMP POOH & stand back 53 stands of 3 1/2" DP + 3 stands of 4 3/4" DCs. 21 :00 - 00:00 3.00 PULL P DECOMP Dis-engauge fish from Overshot & LID same. RIU tbg tools. POOH & LID 41/2" 12.6# tbg. 85 jts out @ midnight. 1/29/2004 00:00 - 01 :00 1.00 PULL P DECOMP Cont to POOH & LID 41/2" tbg. recovered 96 jts, +19.15' cut off jt, + 4 GLMs. Cut end is split for about 4 " See photos in e-mail. Apparently when Tbg parted the Chemical Cut ends cut into each other. Last 10 jts pin ends looked good. 01 :00 - 01 :30 0.50 PULL P DECOMP R/D4 1/2" tbg tools. Clear & clean floor. 01 :30 - 03:00 1.50 FISH P DECOMP LID Overshot Assy. M/U Dress off Assy as follows: Mill Shoe, 2 - extension, triple connection, XO, 2- Junk Subs, Csg Scraper, XO, Bumper Sub, Oil Jars, 9 - DCs. TL 325.62'. 03:00 - 04:30 1.50 FISH P DECOMP RIH with 3 1/2" Drill Pipe from Derrick. 04:30 - 08:00 3.50 FISH P DECOMP P/U 3 1/2" DP 1x1. Continue RIH wi BHA #7. 08:00 - 13:30 5.50 FISH P DECaMP Pick-up Kelly. PUW = 155K. SOW = 125K. ROTOWT = 136K. Torque = 2,000 ftllbs. RPMs = 50. Pump Rate = 3 bpm/500 - 900 psi. WT on Mill = 4K - 10K. Tagged top of damaged 4 1/2" Chemical Cut Stump at 9,303.' 4es KB. Printed: 2/2/2004 2:21: 36 PM BP EXPLORATION Page 4 of 5 Operations Summary Report Legal Well Name: D-31 A Common Well Name: D-31 A Spud Date: Event Name: WORKOVER Start: 1/26/2004 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: 1/31/2004 Rig Name: NABORS 4ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 1/29/2004 08:00 - 13:30 5.50 FISH P DECOMP Dressed off top with Dress Mill (5" ID) and swallowed 10' of Stump. Milled off 2' of Stump with Dress-Off Shoe (47/8") (damaged bottom on recovered Stub was 4" - 5"). Top of Dressed off Stump now at 9,305', Inside Pilot Mill (3 13/16") at 9,306.5', and the Outside Dress Mill at 9,115'. Casing Scraper at 9,278' (expected Completion Pkr setting depth = 9,258'). Worked on and off Stump with no drag or bobbles several times...however, it required slight rotation each time to fall over the top. Dressed Stump is clean...need for rotation probably do to hole angle = 55 degs. 13:30 -14:00 0.50 FISH P DECOMP Rig up to reverse Circulate. Mix 30 bbl Sweep. 14:00 - 16:00 2.00 FISH P DECOMP Reverse circulate & pump Hi-Vis sweep at 4.0 bpm/900 psi. Reversed until clean. Recovered small amount of Scale across Shaker. 16:00 - 16:30 0.50 FISH P DECOMP Drift over tbg stub 2 times. RID reverse lines. Monitor wewll. 16:30 - 23:00 6.50 FISH P DECOMP POOH & LID 3 1/2" DP. LID 9* 4 3/4" DCs. LID BHA # 7. Inspected mill surfaces. Good indication of dressing off tbg stub. Emptied String baskets & recovered pieces of bands & metal millings. 23:00 - 23:30 0.50 FISH P DECOMP P/U running tool & Pull wear bushing. LID running tool. 23:30 - 00:00 0.50 RUNCO~ P COMP Clear & clean rig floor. 1/30/2004 00:00 - 01 :00 1.00 RUNCO~ P COMP Finish clear & cleaning rig floor. Finish loading completion equip in pipe shed. 01 :00 - 03:00 2.00 RUNCO~ P COMP R/U completion tools. Hold PJSM & review completion running procedure. 03:00 - 06:00 3.00 RUNCO~ P COMP RUN 41/2" LCr 13 Vam Top completion. Baker Lok all connections below S-3 packer assy. M/U & Torque turn Vam Top connections to 4440ft-lbs. Rabbit tbg as run in hole. 06:00 - 16:00 10.00 RUNCO~ P COMP Finished RIH with 41/2" L 13Cr Completion as designed. Pick-up Jt # 217, # 218. 16:00 - 17:00 1.00 RUNCO~ ip COMP Make-up Head Pin. Bring Pump on line at 3 bpm/150 psi. Ease in hole with Jt 218 looking for top of 41/2" Stump. Did not see Unique OS start to swallow Stump. Overshot bottomed out on Stump at 9,305', pressure jumped to 350 psi. Pulled up off of Stump. Repeated tag with same results. (Overshot bottomed out with-in less than 1 ft of Pipe Tally). 17:00 - 17:30 0.50 RUNCO~ ip COMP Lay down Jt #218, 217, and 216. Pick-up 3 Space Out Pups (total 27.5'). Pick-up Jt 216. Space out end of Overshot 3.5' off bottom with 6' swallowed. Make-up Tubing Hanger and XO pups. 17:30 - 18:00 0.50 RUNCO~ /P COMP RID tbg tools. Clear & clean rig floor. 18:00 - 20:30 2.50 RUNCO~ /P COMP R/U reverse circulating lines. Displace well wi 290 Bbls of inhibited brine. Pump @ 3 BPM, 150 psi. Blow down lines. 20:30 - 21 :00 0.50 RUNCO~ /P COMP Land tubing hanger. RILDS. Drop ball & rod. LID landing jt. 21 :00 - 23:00 2.00 RUNCO~ /P COMP Hold PJSM. Test lines to 3500 psi. pressure up on tbg to 3500 psi & set S-3 packer. Hold & chart pressure for 30 min, OK. Bled off tbg to 1500 psi, & SI tbg. Pressure up on annulus to 3500 psi & hold for 30 min, Chart same. Good test. Bleed off tbg pressure & shear DCK shear valve @ 600 psi. . Equalize pressure & bleed off. Pump down tbg & annulus @ 2 BPM, 800 psi & insure good shear & circulation. 23:00 - 23:30 0.50 RUNCO~ IF COMP Set TWC & test to 3500 psi, OK. RID lines. 23:30 - 00:00 0.50 BOPSU¡:; P COMP Begin N/D BOPE. Printed: 2/2/2004 2:21 :36 PM BP EXPLORATION Page 5 of 5 Operations Summary Report Legal Well Name: D-31 A Common Well Name: D-31 A Spud Date: Event Name: WORKOVER Start: 1/26/2004 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: 1/31/2004 Rig Name: NABORS 4ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 1/31/2004 00:00 - 01 :30 1.50 BOPSUR P COMP N/D BOPE. 01 :30 - 03:30 2.00 WHSUR P COMP N/U X-mas tree. Test void & tree to 5000 psi, OK. 03:30 - 04:30 1.00 WHSUR P COMP RIU lubricator & pull TWC. UD lubricator. 04:30 - 07:00 2.50 WHSUR P COMP R/U lines to tree & pressure test same. Freeze protect down annulus wi 90 BBls diesel. Allow diesel in well to U-tube into Tbg. 07:00 - 08:00 1.00 RIGD P COMP Blow down and rig down Lines. RD Tiger Tank. Secure Cellar. Rig Released 08:00 hrs...LMH. Printed: 2/2/2004 2:21 :36 PM Well: Field: API: Permit: D-31A Prudhoe Bay Unit 50-029-22672-01-00 196-095 Accept: Spud: Release: Rig: 01/26/04 NIA 01/31/04 Nabors 4ES POST RIG WORK 02106/04 PULLED BALL & ROD. PULLED STA #3 (BK-DGLV), STA #4 (BK-DCK SHEAR VLV). SET STA #4 ( BK- 16/64" PORT 1500# TRO), STA #3 (20/64" ORIFICE). PULLED RHC PLUG BODY FROM X-NIP @ 9281' MD. MADE ONE ATTEMPT TO PULL JUNK CATCHER (UNABLE TO LATCH). RAN 3.80 SWAGE & 3.68 LIB (LIB SHOWS POSSIBLE FILL). BAIL DRILLING MUD & METAL SHAVING FROM 9350' SLM TO 9361' SLM. 02/07/04 PULL "P" PRONG @ 9367'SLM. SEVERAL ATTEMPTS TO PULL PLUG. TOOLS HUNG UP IN PLUG. 02/08/04 DROP 3.00 CUTTER BAR, RECOVER ALL WIRE. RECOVERED CUTTER BAR @ 9352'SLM. RECOVERED TOOL STRING AND 4.5" GS @ 9357'SLM. BAIL TO FREE UP EQUALIZING PORTS ON PLUG. 02/09/04 RUN IN 1.75 BAILER TO PLUG, NOTHING IN BAILER. LAY DOWN EQUIP DUE TO TEMP @ MIN -40. RIG UP S/L UNIT, ONE BAILER RUN. RIG DOWN EQUIP DUE TO HIGH WINDS. 02/10/04 PULL PXN PLUG BODY. PACKING TORN - HEAVY METAL MARKS ON EXPANDER MANDREL AND PLUG BODY. TURN WELL OVER TO DSO - WELL LEFT SHUT IN. TREE = 4"QW WELLHEAD = Frv'C ACTlJl\ TOR = BAKER C KB. 8..EV = 82.9' BF. 8..EV = 40.78' KOP- 2074' Max Angle = 94@ 11150' Datum MD = 9323' Datum TVD = 8800' SS 10-3/4" CSG. 45.5#. L-80. 10 = 9.953" Minimum ID = 3.72511 @ 9412' 4.1/211 XN NIP PLE 14-1/2" TBG, 12.6#. 13-CR-80, D = 3.958" I 1.. \ÖC.råJ 14-1/2" TBG. 12.6#, L-80, .0152 bpf. 10 = 3.958" I -- TOP OF 4-1/2" LNR 17-518" CSG, 29.7#, USS-95. D = 6.875" I ÆRFORA TON SUMMARY REF LOG: SPERRY SUN MvVD'GR ON 06/25/96 ANGLE AT TOP PERF: 91 @ 9910' Note: Refer to Production DB for historical perf data SIZE SFr NTERV A L Opn/Sqz DATE 2-3/4" 4 991 0 - 1 001 0 0 05/30/96 2-3/4" 4 10070 - 10340 0 06/30/96 2-3/4" 4 10400 - 10540 0 05/30/96 2-3/4" 4 10620 - 11020 C 05/30/96 2-3/4" 4 11110- 11330 C 02/06/98 2-3/4" 4 1111 0 - 11 330 C 02/06/98 2-3/4" 4 11420 - 11500 C 02/06/98 2-3/4" 4 11420 - 11500 C 02/06/98 D-31 A SAÆTY NOTES: HORIZONTAL WELl. 700 @ 9564' AND 900 @ 9835' -4-112" CHROMETBG 2110' 4-1/2" X NIP, 10 = 3.813" GAS LIFT MANDRELS OBI TYPE VL V LA TO; 27 KBG-2 DOME BK 6 KBG-2 SIO BK 4 KBG-2 DMY BK 56 KBG-2 DMY BK PORf DATE 16 02/06/04 20 02/06/04 ST MD lVD 4 3432 3415 3 5559 5426 2 7349 7064 1 9179 8800 4-1/2" X NIP, 10= 3.813" 14-1/2" X 7-5/8" 8-3 PKR 10 = 3.875" I 4-1 /2" X NIP, 10 = 3.81 3" -14-1/2" X 7-5/8" UNIQUE MACHINE OVERSHOT I -14-1/2" X NIP. 10 = 3.813" I 1 7-5/8" X 4-1/2" TIW HBBP-T PKR, 10 = 3.915" I 14-1/2" X NIP, 10 = 3.81 3" 14-1/2" XN NP, 10=3.725" I -14-1/2" WLEG. 10= 4.0" I 1-18..MD TT LOGGED 05/13/97 I I MILLOUT WINOOW - 3624' 3-3/8" BKR IBP MID ELEMENT DEPfH 3-3/8" BKR IBP MID EL8v1ENT DEPrH 4-1/2" LNR 12.6#. L-80, .0152 bpf, 10 = 3.953" DATE REV BY COI'vfv1ENTS DATE RBI BY COMfIi1ENTS ORIGINAL COMPLETION 02/06104 DAV /TLP GLV 00 05131/96 CHH SlDErRACK (D-31A) 01/31/04 TM ~TLP RlNO 01/10102 RI\VTP CORRECTIONS 06/23/03 J1vVTLH GL V C/O 07/11/03 CMO/TLP KB 8..BI A llON CORRECllON PRUDHOE BA Y UNIT WELL: D-31A PERMIT No: 1960950 AR No: 50-029-22672-01 SEC 23, T11N, R13E, 2034' FNL & 1999' FEL BP Exploration (Alaska) { ( TREE = 4"CIW WELLHEAD = FMC ACTlJA. TOR = BAKER C KB. 8...EV = 75.98' BF. B..EV = 40.78' KOP= 2074' 1v'ex Angle = 94 @ 11150' Datum MD = 9323' DatumTVD = 8800' SS 110-3/4" CSG, 45.5#, L-80, 10 = 9.953" I D-31A Minimum ID = 3.725" @ 9412' 4-1/2" XN NIPPLE 14-1/2" TBG, 12.6#, L-BO, .0152 bpf, 10=3.958" I ¡TOP OF 4-1/2" LNR I 17-5/8" CSG, 29.7#, USS-95 , D = 6.875" I 9781' PERFORATION SLMrv\A.RY REF LOG: SÆRRY SUN MWD/GR ON 06/25/96 ANGLEATTOP ÆRF: 91 @ 9910' Note: Refer to A-oductbn DB for historical perf data SIZE SFF INTERVAL Opn/Sqz DATE 2-3/4" 4 9910' -10010' 0 05/30/96 2-3/4" 4 10070' -10340' 0 06/30/96 2-3/4" 4 10400' -10540' 0 05/30/96 2-3/4" 4 10620' -11020' C 05/30/96 2-3/4" 4 11110' -11330' C 02/06/98 2-3/4" 4 11110' -11330' C 02/06/98 2-3/4" 4 11420' -11500' C 02/06/98 2-3/4" 4 11420' -11500' C 02/06/98 8 SAFETY NOTES: HORIZONTAL Wa.L. 700 @ 9564' AND 900 @ 9835' 2174' -l4-1/Z' I-ES HXOSSSV NIP, 10= 3.813" 1 ST MO NO 5 3411 3341 4 5648 5422 3 7381 7096 2 8592 8306 1 9290 8864 GAS LIFT MANORB..S DEV TYPE VLV LATCH 1 KBMG-M BK 27 KBMG-M BK 6 KBMG-M BK 4 KBMG-M BK 56 KBMG-M BK PORT DATE 9355' -l4-1/Z' X NIP, 10= 3.813" I 9366' -l7-5/8" x 4-1/2" TIW HBBP-T PKR, 10 = 3.915" I 9390' -l4-1/Z' X NIP, 10= 3.813" 1 9412' -l4-1/Z' XN NIP, D =3.725" 1 -i4-1/Z' WLEG, 10=4.0" I l-l B..MD TT LOGGED 05/13/97 1 I MILLOur WINDOW - 3624' 3-3/8" BKR IBP MID ELEMENT DEPrH -l3-3/8" BKR IBP MID EL8v1ENT DEPrH 4-1/2" LNR, 12.6#, L-80, .0152 bpf, 10 = 3.953" DATE REV BY COtvTv1ENTS DATE REV BY COtvTv1ENTS ORIGINAL COMPLEfION 05/31/96 OiH SIDEfRACK COMA..E110N 02/20/01 SIS-SLT CONVERTED TO CL\NVAS 03/08/01 SIS-MD FINAL 01/10/02 RN'TP CORREGrIONS ~(;ANNED MAY 2 9 2003 ffiLDHOE BA Y UNIT WB..L: 0-31 A PERJ'v1IT No: 196-0950 API No: 50-029-22672-01 SEC 23, T11 N, R13E BP Exploration (Alas ka) MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: THRU: Julie Heusser, z-~" ~ '~ ~ Commissioner ir~' ~ Tom Maunder,~~~ P. I. Supervisor ~(>~.-C~ ~.. DATE: April 20, 2001 FROM: Chuck Scheve; SUBJECT: Petroleum Inspector Safety Valve Tests Prudhoe Bay Unit D Pad Friday, Ao. ril 20, 200_!.:. ! traveled to BPXs D Pad and witnessed the semi annual safety valve system testing. As the attached AOGCC Safety Valve System Test Report indicates I witnessed the testing of 20 wells and 40 components with 1 failure. The surface safety valve on well D,06 had a slow leak when pressure tested. This valve was serviced and the retest witnessed on this date. Merv Liddlow performed the testing today; he demonstrated good test procedures and was a pleasure to work with. A walk through inspection of the well houses on this pad was performed during the SVS testing with no problems noted. All well houses inspected were reasonably clean and ali equipment appeared to be in fair conditions. .Summary: I witnessed the semi annual SVS testing at BPXs D-Pad. PBU D Pad, 20 wells, 40 components, 1 failure 2.5% failure rate 25 wellhouse inspections Attachment: SVS PBU D Pad 4-20-01 CS X Unclassified Confidential (Unclassified if doc. removed ) Confidential SVS PBU D Pad 4-20-01 CS · Alaska Oil and Gas Conservation Commission Safety Valve System Test Report Operator: BPX Operator Rep: Merv Liddelow AOGCC Rep: Chuck Scheve Submitted By: Chuck Scheve Field/Unit/Pad: Prudhoe/PBU /D Pad Separator psi: LPS 154 Date: 4/19 & 4/20 HPS 660 ,;Se-=;~::~e~;:Z:~5~-::-"~¢;e~t~'.:-:~:~.aC~g:~ ~:~i~:i::~ ~:~:~:~:~:~*:~:'tc~':':::¢':~e~z~:~:::~:ic:-~:':~:¢f~:~;~t:t-::~::~::~l ~ ~ I ~ ~ I~ ...... ~:: :e~ :'i "::':~ i '~ ' :: ' ' " ' ' ~' '~ :'- ''~' : ': ' ' Well Permit Separ Set L/P Test Test Test Date Oil, WAG, GIN J, Number Number PSI PSI T~p Code Code Code Passed GAS or CYCLE D-01A 1970780 154 125 125 P P OIL , , D-03A 2001340 154 125 125 P P OIL D-04A 1871250 D-05 1700060 660 550 450 P 'P '0IL , , D-06A 1970430 660 550: 600 P 4 OIL , D-07A 1931570 660 550 525 P P 4/20/01 OIL D-08 1790360 , , , D-09A 1990850 660 550 525 P P OIL D-10 1790530 660 550: 525 P P OIL ,,, D-11A 1951830 660 550 525 P P OIL D-12 1800150 660 550! 530 P P OIL: i , D-13A 2000810 D-14A' 1961530 D-15A 1972120 , iD-16 1811710 660 550 500 P P OIL , ,, D-17A 1960.460 ,. D-18 18118801 , 'D-20 1820440 154 125i 120 P P OIL :D-21 1820520 154 125: 125 P P oIL D-22~ 1972040 ' D-: A sso P "' D-24 185299O D-25A 2000240 154 125 100 P P OIL D-26A 1970870 660 550 525 P P OIL , D-27 1860330 660 550 550 P P OIL D-28A ]952130 660 550 550 P P OIL D-29 1852530 154 125 110 P P OIL D-30 1960260 ]9609S0 660 P OIL , D-33 ]960360 660 550 550 P P OIL ,, , RJF 1/16/01 Page 1 of 2 SVS PBU D Pad 4-20-01 CS ii i ii i j i i ! i t sS- l ?? Well I Permit]SeParI Set [ ~ Test ]T~tlTeSt! Date Io,~W~.~j. I Number ]Number] PSI] PSI ] Trip Code ICodelCodeI Passed GAS or CYCLE Wells: : 20 Components: 40 Failures: 1 Failure Rate: 2.50% .... . Remarks: The surface, safety, valve on well D-6 had slow leak when pressure tested. Valve was serviced and retested same. day, RJF 1/16/01 Page 2 of 2 SVS PBU D Pad 4-20-01 CS PERMIT AOGCC Individual Well Geological Materials Inventory DATA T DATA PLUS 96~095 .... _~.~-/cc~, ........... L 10650-1~,-53~. 96 - 095 RES/GR-TVD / ~/8262 - 9030 96 - 095 CNP/GR- TVD ~8262 - 9036 96-095 N~/GR- MD ~8548-11849 96 - 095 RES/GR-MD 96-095 6311 ~548-11849 -~/CNP/RES/GR Page: 1 Date: 06/09/98 RUN RECVD 1 · '08/02/96 FINAL 10/03/96 FINAL 10/03/96 FINAL 10/03/96 FINAL 10/03/96 4-8 10/09/96 10-407 ~OMPLETION DATE ~/~//q~ / ?/ /~/~L/ '~/,,'~/,~, / yes ~~alysis & description received? ~o~- t ~, ~ c~/ / ~h/ DAILY WELL OPS '~R ~/,Po / / TO / Are dry ditch samples required? yes ~..A. nd received? Was the well cored? Are well tests required? ,yes Well is in compliance l~0 Initial COMMENTS ~Received? D !:t I I--I--I ~ G S !~ F:! ~./I r" ¢= S WELL LOG TRANSMITTAL To: State of Alaska October 7, 1996 Alaska Oil and Gas Conservation Comm. Attn.: Howard Okland 3001 Porcupine Dr. Cf ¥ Anchorage, Alaska 99501 MWD Formation Evaluation Logs - D-3 lA RF_.: AK-MM-960523 _ The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of.' Yum Galvin, Sperry-Sun Drilling Services, 5631 Silverado Way, #G, Anchorage, AK 99518 1 LDWG formatted LIS tape with verification listing. API#: 50-029-22672-01 OCT 0 5 ~ee~, Oil & Gas CoDs. 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (9.07) 563-3256 ° Fax (907) 563-7252 A Dresser Industries. Inc. ComDanv 0 !::! I I_1_ I I~ CS WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Howard Okland 3001 Porcupine Drive Anchorage, Alaska 99501 October 2, 1996 OCT 0~, 19~ MWD Formation Evaluation Logs D-3 IA, AK-MM-960523 At~l~0il& Gas6~ns. ~' ' ' The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this of this transmittal letter to the attention off Jim Galvin, Sperry-Sun Drilling Services, 5631 Silverado Way, #G, Anchorage, AK 99518 D-31A: 2" x 5" MD Neutron Porosity & Gamma Ray Logs: 50-029-22672-01 2" x 5" TVD Neutron Porosity & Gamma Ray Logs: 50-029-22672-01 2" x 5" MD ReSistivity and Gamma Ray Logs: 50-029-22672-01 2" x 5" TVD Resistivity and Gamma Ray Logs: 50-029-22672-01 1 Blueline 1 Rev Folded Sepia 1 Blueline 1 Rev Folded Sepia l Blueline 1 Rev Folded Sepia 1 Blueline l Rev Folded Sepia 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 ° (9.07) 563-3256 ° Fax (907) 563-7252 A Br~..~.~c.r Ind~ J.qtrio..q Inn t"'~mnnnv .... STATE OF ALASKA ALASK,-, OIL AND GAS CONSERVATION CL,,ClMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well [] Oil [] Gas [] Suspended [] Abandoned [] Service 2. Name of Operator 7. Permit Number BP Exploration (Alaska) Inc. 96-95 3. Address 8. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-22672-01 4. Location of well at surface ...... i~ 9. Unit or Lease Name 1945' NSL, 1068' WEL, SEC. 23, T11N, R13E I 'J'-,'..,~.,:!,u~ i Prudhoe Bay Unit At top of productive interval ~ _i.~,~'i'E ?_ I 10. Well Number 1327' NSL, 2406' WEL, SEC. 23, T11N, R13E_.~_¢¢'_ .,..~/'¢-,~'~~ ~ ii~~ D-31A At total depth i '"--"~-F"~:~[~ ~ ; ":[1. Field and Pool 3827' NSL, 1234' WEL, SEC. 23, T11N, Prudhoe Bay Field / Prudhoe Bay 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease~De§i~nation and Serial No. Pool KBE = 82.93'I ADL 028285 ,12. Date Spudded05/10/96 I13' Date T'D' Reached I 14' Date C°mp" Susp" °r Aband'115' Water depth' if OffshOre I 16' NO' Of COmpletiOns05/25/96 05/31/96 N/A MSLI One 17. Total Depth (MD+TVD)! 18. Plug Back Depth (MD+TVD) 19. Directional Surveyl20. Depth where SSSV set~21. Thickness of Permafrost 11848 9031 F~1 11717 9030 FT [] Yes [] No I 2174' MD ! 1900' (Approx.) 22. Type Electric or Other Logs Run MWD, LWD, GR, RES, FL, DIP, CNL i23. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH HOLE SIZE WT. PER FT. GRADE TOP BO'FrOM SIZE CEMENTING RECORD AMOUNT PULLED 20" 91.5# H-40 Surface 110' 30" 260 sx Arctic Set (Approx.) 10-3/4" 45.5# L-80 35' 3216' 13-1/2" 1080 sx PF 'E', 375 sx Class 'G', 260 sx PF 'E' 7-5/8" 29.7# USS-95/13Cr 36' 9781' 9-7/8" 493 sx Class 'G' 4-1/2" 12.6# L-80 9652' 11848' 6-3/4" 389 sx Class 'G' 24. Perforations open to Production (MD+TVD of Top and Bottom 25. TUBING RECORD and interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) 2-3/4" Gun Diameter, 4 spf 4-1/2" 9424' 9366' MD TVD MD TVD 9910' - 1001 o' 9032' - 9030' 10070' - 10340' 9030' - 9033' 26. AC~D, FRACTURE, CEMENT SQUEEZE, ETC. 10400' - 10540' 9032' - 9028' 10620' - 11020' 9030' - 9033' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11110'- 11330' 9032'- 9025' 3565' - 4075' Kick Off Plug, 72 Bbls Class 'G' 11420' - 11500' 9030' - 9031' Freeze Protect w/150 Bbls Dry Crude 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) June 14, 1996 F owing Date of Test Hours Tested PRODUCTION FOR OIL-EEL GAS-MCF WATER-BEE CHOKE SIZE I GAS-OIL RATIO TEST PERIOD ~1~ I Flow Tubing Casing Pressure CALCULATED I~ OIL-BEE GAS-MCF WATER-BEE OIL GRAVITY-APl (CORE) 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. RECEIVED ORIGINAL JUL 1 2 1996 Form 10-407 Rev. 07-01-80 Anchorage Submit In Duplicate 29. Geologic Mark~_ 30. Formation Tests Measured True Vertical Include interval tested, pressure data, all fluids recovered Marker Name Depth Depth and gravity, GOR, and time of each phase. Sag River 8880' 8577' Shublik 8867' 8566' Top of Sadlerochit 8957' 8643' RECEIVED JUL 1 2 199G Alaska 0il & (~s Cons. CommJ~sior~ A~lchorage 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 ~',,~ ~(~ Tern/Jordan Title Senior Drilling Engineer Date Prepared By Name/Number Terrie Hu ,564-4628 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 cementing and the location of the cementing tool. ITEM 27: 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 SUMMARY OF DALLY OPERATIONS SHARED SERVICES DRILLING - BPX / ARCO Well Name: D-31A Rig Name: Doyon 9 AFE: 4 P0763 Accept Date: 05/10/96 Spud Date: 05/10/96 Release Date: 05/31/96 May 10 1996 (1) Held safety meeting. Made up BHA no. 1 . R.I.H. to 3200 ft. Circulated at 3200 ft. May 11 1996 (2) Repaired Mud shakers. R.I.H. to 3295 ft. Washed to 3565 ft. Drilled cement to 3624 ft. Drilled to 4577 ft. Held safety meeting. Drilled to 4673 ft. Circulated at 4673 ft. Pulled out of hole to 3200 ft. Repaired Mud shakers. R.I.H. to 4673 ft. Drilled to 4716 ft. May 12 1996 (3) Drilled to 5780 ft. Circulated at 5780 ft. Pulled out of hole to 1000 ft. Pulled BHA. Held safety meeting. Made up BHA no. 2. R.I.H. to 5714 ft. Reamed to 5780 ft. Circulated at 5780 ft. Drilled to 5789 ft. May 13 1996 (4) Drilled to 6483 ft. Pulled out of hole to 5788 ft. Took MWD survey at 5788 ft. Pulled out of hole to 1000 ft. Held safety meeting. Pulled BHA. Downloaded MWD tool. Made up BHA no. 3 . R.I.H. to 6437 ft. Washed to 6483 ft. May 14 1996 (5) Drilled to 7550 ft. May 15 1996 (6) Drilled to 7784 ft. Circulated at 7784 ft. Pulled out of hole to 7074 ft. Held safety meeting. R.I.H. to 7784 ft. Drilled to 8547 ft. May 16 1996 (7) Circulated at 8547 ft. Pulled out of hole to 2000 ft. Held safety meeting. Pulled out of hole to 1070 ft. Pulled BHA. Made up BHA no. 4. R.I.H. to 6959 ft. Washed to 7033 ft. R.I.H. to 8547 ft. Circulated at 8547 ft. Drilled to 8591 ft. Held safety meeting. Drilled to 8718 ft. Operations Summary for: L .lA May 17 1996 (8) Drilled to 8930 ft. Held safety meeting. Drilled to 9163 ft. Circulated at 1537 ft. Pulled out of hole to 1537 ft. Held safety meeting. Pulled out of hole to 1037 ft. Pulled BHA. Downloaded MWD tool. Made up BHA no. 5. R.I.H. to 3199 ft. Serviced Block line. R.I.H. to 7500 ft. May 18 1996 (9) R.I.H. to 8534 ft. Reamed to 9163 ft. Drilled to 9200 ft. Held safety meeting. Drilled to 9402 ft. Held safety meeting. Drilled to 9434 ft. Circulated at 9434 ft. Pulled out of hole to 1037 ft. Pulled BHA. May 19 1996 (10) Tested BOP stack. Made up BHA no. 6 . Held safety meeting. R.I.H. to 9086 ft. Washed to 9086 ft. Laid down 282 ft of 5 in OD drill pipe. R.I.H. to 9070 ft. Washed to 9434 ft. Drilled to 9499 ft. Logged hole with LWD: DIR/FE from 9436 ft to 9329 ft. Held safety meeting. Drilled to 9552 ft. May 20 1996 (11) Drilled to 9714 ft. Held safety meeting. Drilled to 9796 ft. Circulated at 9796 ft. Pulled out of hole to 9000 ft. R.I.H. to 9796 ft. Circulated at 9796 ft. Pulled out of hole to 5096 ft. Held safety meeting. Pulled out of hole to 1071 ft. Pulled BHA. Downloaded MWD tool. Rigged down Top ram. Rigged up Top ram. Tested Top ram. May 21 1996 (12) Rigged up Casing handling equipment. Held safety meeting. Ran Casing to 3200 ft (7.625 in OD). Circulated at 3200 ft. Ran Casing to 5139 ft (7.625 in OD). Held safety meeting. Ran Casing to 9781 ft (7.625 in OD). Circulated at 9781 ft. Pumped spacers - volume 90 bbl. Mixed and pumped slurry - 102 bbl. Displaced slurry - 448 bbl. Rigged down Casing handling equipment. Installed Seal assembly. Tested Seal assembly. Laid down 1800 ft of Drillpipe. Held safety meeting. Laid down 7796 ft of Drillpipe. May 22 1996 (13) Rigged up Bottom ram. Rigged up Kelly. Tested BOP stack. Made up BHA no. 7. Held safety meeting. Held drill (H2S). Made up BHA no. 7. Downloaded MWD tool. Made up BHA no. 7. R.I.H. to 8700 ft. Held drill (Kick (well kill)). R.I.H. to 9603 ft. Held safety meeting. Circulated at 9695 ft. Tested Casing - Via string. Drilled cement to 9806 ft. Circulated at 9806 ft. Page 2 Operations Summary for: L .,lA May 23 1996 (14) Drilled to 10093 ft. Held safety meeting. Drilled to 10500 ft. Held safety meeting. Held drill (H2S). Drilled to 10610 ft. May 24 1996 (15) Drilled to 10806 ft. Held safety meeting. Drilled to 10861 ft. Circulated at 10861 ft. Pulled out of hole to 1075 ft. Pulled BHA. Made up BHA no. 8. R.I.H. to 5247 ft. Serviced Block line. Held safety meeting. R.I.H. to 9781 ft. Logged hole with LWD: Formation evaluation (FE) from 9788 ft to 10861 ft. Drilled to 10925 ft. May 25 1996 (16) Drilled to 11274 ft. Held safety meeting. Drilled to 11751 ft. Held safety meeting. Drilled to 11848 ft. Circulated at 11848 ft. May 26 1996 (17) Circulated at 11803 ft. Circulated at 11803 ft. May 27 1996 (18) Circulated at 11835 ft. Circulated at 11803 ft. Held safety meeting. Pulled out of hole to 9742 ft. R.I.H. to 11835 ft. Circulated at 11835 ft. Pulled out of hole to 2075 ft. Held safety meeting. Pulled out of hole to 1075 ft. Pulled BHA. Rigged up Casing handling equipment. Ran Casing to 1400 ft (4.5 in OD). May 28 1996 (19) Ran Casing to 2300 ft (4.5 in OD). Circulated at 2300 ft. Ran Drillpipe in stands to 5446 ft. Held safety meeting. Ran Drillpipe in stands to 9781 ft. Circulated at 9781 ft. Ran Drillpipe in stands to 11848 ft. Set Inflatable packer at 11721 ft with 1530 psi. Batch mixed slurry - 84 bbl. Pumped spacers - volume 90 bbl. Mixed and pumped slurry- 84 bbl. Displaced slurry - 95 bbl. Reverse circulated at 9633 ft. Pulled Drillpipe in stands to 8680 ft. Circulated at 8680 ft. Pulled Drillpipe in stands to 7700 ft. Held safety meeting. Pulled Drillpipe in stands to 0 ft. Made up BHA no. 9. May 29 1996 (20) Made up BHA no. 9. R.I.H. to 9670 ft. Reamed to 9730 ft. R.I.H. to 10650 ft. Held safety meeting. R.I.H. to 11695 ft. Reamed to 11717 ft. Tested Casing - Via string. Circulated at 11717 ft. Pulled out of hole to 3001 ft. Pulled BHA. Held safety meeting. Held drill (Fire). Pulled BHA. Tested BOP stack. Page Operations Summary for: L .,lA May 30 1996 (21) Ran Drillpipe to 2212 ft (2.75 in OD). Held safety meeting. Ran Drillpipe in stands to 9309 ft. Set packer at 9309 ft with 0 psi. Held safety meeting. Perforated from 11500 ft to 9910 ft. Reverse circulated at 9301 ft. Pulled Drillpipe in stands to 9900 ft. Rigged down High pressure lines. Laid down 8000 ft of Drillpipe. Held safety meeting. Laid down 9300 ft of Drillpipe. Laid down 2200 ft of Drillpipe. May 31 1996 (22) Laid down 2200 ft of Drillpipe. Laid down 600 ft of Drillpipe. Held safety meeting. Rigged down Swivel. Retrieved Wear bushing. Rigged up Tubing handling equipment. Ran Tubing to 7249 ft (4.5 in OD). Rigged up sub-surface equipment - SCSSSV nipple assembly. Ran Tubing to 8000 ft (4.5 in OD). Held safety meeting. Ran Tubing to 9390 ft (4.5 in OD). Installed Tubing hanger. Reverse circulated at 9423 ft. Jun I 1996 (23) Set packer at 9366 ft with 4000 psi. Held safety meeting. Rigged down BOP stack. Installed Xmas tree. Held safety meeting. Tested All tree valves. Removed Hanger plug. Tested Hydraulic packer. Freeze protect well- 80 bbl of Diesel. Installed Hanger plug. Rig moved 10 %. RECEIVED JUL. 1 2 1996 Page 4 S~. ..RY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU / D-31A 500292267201 NORTH SLOPE BOROUGI~ COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 MWD SURVEY JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 3572.91 3556.26 3473.33 3656.00 3639.35 3556.42 3663.11 3646.46 3563.53 3760.94 3744.14 3661.21 3853.34 3836.31 3753.39 0 30 S 16.65 W .00 118.91S 240.52W 0 28 S 19.16 W .05 119.59S 240.74W 1 47 S 75.98 W 22.39 119.64S 240.86W 4 3 S 72.24 W 2.32 121.07S 245.64W 3 54 S 71.47 W .17 123.07S 251.75W -92.37 -93.02 -93.06 -93.97 -95.30 3952.55 3935.29 3852.36 4048.07 4030.44 3947.51 4143.65 4125.26 4042.33 4239.22 4219.80 4136.87 4334.22 4313.48 4230.55 3 56 S 71.96 W .04 125.20S 258.19W 5 57 S 64.52 W 2.21 128.35S 265.79W 8 18 S 62.18 W 2.48 133.71S 276.38W 8 33 S 61.63 W .27 140.31S 288.74W 10 26 S 60.90 W 1.99 147.85S 302.47W -96.72 -99.04 -103.23 -108.46 -114.48 4429.98 4407.14 4324.21 4525.76 4499.40 4416.47 4620.78 4589.39 4506.46 4716.35 4678.44 4595.51 4811.12 4764.99 4682.06 13 34 S 65.27 W 3.40 156.77S 320.26W 17 30 S 66.00 W 4.11 167.33S 343.63W 19 53 S 64.88 W 2.54 180.00S 371.32W 22 38 S 65.24 W 2.88 194.61S 402.75W 25 26 S 64.33 W 2.98 211.07S 437.67W -121.44 -129.43 -139.05 -150.20 -162.81 4906.96 4851.51 4768.58 5001.37 4936.08 4853.15 5096.27 5020.22 4937.29 5191.68 5104.08 5021.15 5285.77 5186.14 5103.21 25 30 S 65.09 W .35 228.68S 474.94W 27 14 S 61.85 W 2.38 247.44S 512.43W 27 51 S 61.94 W .65 268.12S 551.14W 29 6 S 62.47 W 1.33 289.33S 591.39W 29 28 S 58.72 W 1.99 311.92S 631.47W -176.31 -190.93 -207.33 -224.09 -242.25 5381.56 5270.15 5187.22 5477.17 5354.49 5271.56 5570.18 5436.21 5353.28 5665.17 5520.09 5437.16 5728.50 5576.39 5493.46 27 55 S 59.03 W 1.63 335.70S 670.85W 28 15 S 58.56 W .42 359.03S 709.36W 28 47 S 58.50 W .58 382.22S 747.24W 27 7 S 56.83 W 1.94 406.03S 784.88W 27 23 S 56.95 W .42 421.87S 809.18W -261.66 -280.71 -299.70 -319.32 -332.46 5824.31 5661.34 5578.41 5919.91 5745.84 5662.91 6014.07 5828.77 5745.84 6109.82 5912.71 5829.78 6205.58 5996.35 5913.42 27 41 S 56.11 W .51 446.31S 846.13W 28 4 S 56.40 W .43 471.14S 883.31W 28 27 S 56.06 W .44 495.93S 920.38W 29 3 S 55.95 W .63 521.69S 958.58W 29 13 S 55.64 W .24 547.91S 997.15W -352.78 -373.48 -394.14 -415.64 -437.56 6301.18 6079.92 5996.99 6396.81 6163.95 6081.02 6492.40 6248.59 6165.66 6588.23 6334.87 6251.94 6684.00 6422.73 6339.80 28 52 S 54.82 W .56 574.38S 1035.28W 28 8 S 54.39 W .78 600.81S 1072.49W 27 14 S 53.85 W .99 626.85S 1108.48W 24 19 S 56.76 W 3.32 650.61S 1142.71W 22 33 S 59.97 W 2.27 670.61S 1175.11W -459.78 -482.06 -504.08 -524.02 -540.43 RECEIVED JUL 1 2 1996 Alask~ Oil & Gas Cons. Commissior~ S~__xRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU / D-3iA 500292267201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 MWD SURVEY JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 OPERATOR: BP EXPLORATION FT. TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 6779.72 6511.84 6428.91 20 13 6874.98 6601.89 6518.96 17 45 6970.81 6693.68 6610.75 15 33 7065.19 6785.09 6702.16 13 12 7161.39 6879.09 6796.16 11 15 S 62.07 W 2.57 687.55S 1205.62W S 62.72 W 2.59 701.92S 1233.07W S 65.49 W 2.45 713.95S 1257.75W S 64.74 W 2.49 723.80S 1279.02W S 65.12 W 2.04 732.44S 1297.47W -553.99 -565.32 -574.63 -582.14 -588.74 7257.16 6973.36 6890.43 7350.85 7066.19 6983.26 7446.95 7161.86 7078.93 7542.32 7256.99 7174.06 7637.45 7351.89 7268.96 8 54 6 26 4 7 4 1 3 58 S 66.68 W 2.46 739.30S 1312.75W S 67.13 W 2.64 744.22S 1324.26W S 63.43 W 2.43 747.86S 1332.32W S 63.27 W .11 750.90S 1338.38W S 63.51 W .06 753.88S 1344.32W -593.93 -597.57 -600.33 -602.70 -605.02 7731.53 7445.82 7362.89 7828.10 7542.33 7459.40 7924.18 7638.35 7555.42 8019.08 7733.20 7650.27 8114.23 7828.31 7745.38 2 8 2 6 1 50 1 46 1 40 S 78.79 W 2.12 755.68S 1348.97W S 84.35 W .22 756.20S 1352.51W N 45.97 W 1.75 755.30S 1355.38W N 49.82 W .15 753.30S 1357.59W N 51.36 W .11 751.48S 1359.80W -606.31 -606.45 -605.25 -603.02 -600.98 8209.51 7923.55 7840.62 8305.23 8019.23 7936.30 8400.97 8114.93 8032.00 8496.57 8210.49 8127.56 8549.89 8263.78 8180.85 1 40 1 35 1 40 1 36 2 17 N 49.77 W .05 749.71S 1361.96W N 48.36 W .11 747.92S 1364.03W N 48.55 W .09 746.11S 1366.06W N 50.64 W .09 744.34S 1368.14W N 34.18 W 1.65 742.99S 1369.31W -598.98 -596.98 -594.97 -592.98 -591.51 8581.45 8295.29 8212.36 8613.34 8327.03 8244.10 8645.31 8358.67 8275.74 8677.20 8389.98 8307.05 8709.19 8421.03 8338.10 4 9 6 49 9 30 12 22 15 23 N 14.79 W 6.78 741.36S 1369.96W N 5.75 W 8.78 738.36S 1370.45W N .20 E 8.78 733.82S 1370.63W N 2.98 E 9.12 727.77S 1370.44W N 4.10 E 9.48 720.12S 1369.96W -589.82 -586.78 -582.26 -576.27 -568.70 8740.37 8450.84 8367.91 8772.60 8481.04 8398.11 8804.47 8510.26 8427.33 8836.26 8538.83 8455.90 8868.07 8566.96 8484.03 18 43 22 2 25 2 26 59 28 40 N 6.21 E 10.86 711.01S 1369.12W N 8.61 E 10.65 699.89S 1367.66W N 11.54 E 10.10 687.36S 1365.41W N 15.50 E 8.19 673.81S 1362.13W N 20.29 E 8.79 659.69S 1357.56W -559.74 -548.84 -536.62 -523.51 -509.96 8899.96 8594.78 8511.85 8931.73 8622.00 8539.08 8963.43 8648.43 8565.50 8995.26 8674.05 8591.12 9026.25 8698.01 8615.08 29 52 32 9 34 54 37 49 40 54 N 25.51 E 8.84 645.35S 1351.48W N 27.54 E 7.92 630.71S 1344.17W N 28.93 E 9.01 615.29S 1335.88W N 29.65 E 9.27 598.83S 1326.64W N 30.07 E 9.94 581.79S 1316.85W -496.35 -482.59 -468.15 -452.78 -436.88 SP=.,RY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU / D-3IA 500292267201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 MWD SURVEY JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 9057.97 8721.40 8638.47 9089.97 8743.76 8660.83 9119.50 8763.23 8680.30 9156.90 8786.52 8703.59 9185.36 8803.57 8720.64 44 2 47 17 50 12 52 46 53 34 N 30.19 E 9.90 563.27S 1306.10W N 29.74 E 10.24 543.44S 1294.67W N 28.09 E 10.71 524.00S 1283.95W N 25.89 E 8.25 497.93S 1270.68W N 26.03 E 2.87 477.44S 1260.70W -419.63 -401.14 -382.97 -358.47 -339.18 9219.70 8823.80 8740.87 9252.01 8842.49 8759.56 9283.96 8860.69 8777.76 9315.65 8878.52 8795.59 9347.49 8896.21 8813.28 54 15 55 1 55 32 55 59 56 30 N 26.42 E 2.18 452.55S 1248.44W N 26.26 E 2.39 428.93S 1236.75W N 26.60 E 1.87 405.42S 1225.06W N 26.95 E 1.66 382.02S 1213.26W N 27.01 E 1.64 358.43S 1201.25W -315 -293 -271 -249 -227 .74 .52 .40 .41 .25 9379.54 8913.76 8830.83 9409.87 8930.09 8847.16 9434.65 8943.02 8860.09 9466.97 8958.85 8875.92 9500.68 8973.64 8890.71 57 3 57 47 59 17 62 2 65 55 N 27.22 E 1.80 334.57S 1189.02W N 26.28 E 3.55 311.74S 1177.52W N 25.48 E 6.65 292.73S 1168.30W N 24.50 E 8.91 267.19S 1156.40W N 24.66 E 11.55 239.65S 1143.80W -204 -183 -165 -141 -115 .83 .38 .46 .35 .32 9532.49 8985.76 8902.83 9564.31 8996.46 8913.53 9596.36 9005.87 8922.94 9628.09 9013.56 8930.63 9659.96 9019.92 8937.00 69 15 71 26 74 23 77 33 79 25 N 25.93 E 11.10 N 28.20 E 9.62 N 30.17 E 10.89 N 29.59 E 10.12 N 26.83 E 10.32 213.06S 1131.23W 186.38S 1117.60W 159.64S 1102.65W 132.96S 1087.32W 105.44S 1072.56W -90 -65 -40 -15 10 .25 .19 .21 .32 .45 9691.35 9024.95 8942.02 9722.89 9028.80 8945.87 9755.02 9031.53 8948.60 9767.38 9032.15 8949.22 9802.69 9032.92 8949.99 82 9 83 50 86 24 87 49 89 39 N 27.06 E 8.73 N 28.47 E 6.96 N 28.92 E 8.12 N 28.62 E 11.74 N 28.07 E 5.41 77.82S 1058.53W 50.13S 1043.94W 22.05S 1028.57W 11.23S 1022.63W 19.84N 1005.87W 36 62 88 98 127 .40 .37 .63 .75 .83 9834.50 9032.92 8949.99 9866.40 9032.7~ 8949.83 . 9897.46 9032.46 8949.53 9928.54 9031.84 8948.91 9960.12 9031.04 8948.11 9991.74 9030.21 8947.28 10023.56 9029.43 8946.50 10038.80 9029.19 8946.26 10052.23 9029.23 8946.30 10083.59 9029.93 8947.00 90 20 90 15 90 51 91 25 91 28 91 32 91 15 90 33 89 4 88 22 N 28.04 E 2.14 N 28.16 E .47 N 28.16 E 1.96 N 27.50 E 2.79 N 26.03 E 4.66 N 24.46 E 4.97 N 22.88 E 5.04 N 21.39 E 10.80 N 22.33 E 13.05 N 21.22 E 4.20 47.91N 990.91W 154.14 76.05N 975.89W 180.50 103.43N 961.23W 206.14 130.91N 946.73W 231.91 159.10N 932.51W 258.40 187.68N 919.03W 285.37 216.81N 906.26W 312.96 230.93N 900.52W 326.38 243.39N 895.52W 338.23 272.50N 883.89W 365.93 RECEIVED JUL 1 2 199~; SP~,~RY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU / D-3iA 500292267201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 MWD SURVEY JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 10115.04 9030.75 8947.82 10146.81 9031.47 8948.54 10177.37 9032.24 8949.31 10206.26 9033.04 8950.11 10237.70 9033.55 8950.62 88 38 88 46 88 19 88 29 89 39 N 22.08 E 2.87 301.72N 872.29W N 21.48 E 1.93 331.22N 860.51W N 20.78 E 2.70 359.71N 849.49W N 21.14 E 1.36 386.68N 839.16W N 20.12 E 4.94 416.10N 828.09W 393.73 421.79 448.93 474.63 502.69 10269.38 9033.53 8950.60 10300.95 9033.13 8950.20 10330.90 9032.62 8949.69 10362.04 9032.31 8949.38 10392.02 9031.98 8949.05 90 24 91 3 90 55 90 13 91 1 N 19.76 E 2.60 445.88N 817.28W N 21.42 E 5.65 475.43N 806.18W N 21.69 E 1.00 503.28N 795.18W N 21.04 E 3.07 532.28N 783.84W N 21.00 E 2.67 560.26N 773.09W 531.14 559.32 585.83 613.44 640.10 10423.55 9031.27 8948.34 10454.95 9030.26 8947.33 10486.49 9028.99 8946.06 10517.11 9027.85 8944.92 10548.59 9027.68 8944.75 91 34 92 7 92 28 91 49 88 46 N 21.75 E 2.95 589.61N 761.60W N 21.84 E 1.81 618.75N 749.95W N 21.17 E 2.38 648.07N 738.39W N 21.02 E 2.18 676.62N 727.38W N 22.89 E 11.36 705.81N 715.61W 668.05 695.77 723.68 750.88 778.64 10577.45 9028.52 8945.59 10608.99 9029.67 8946.74 10640.79 9030.81 8947.88 10672.52 9031.96 8949.03 10704.74 9033.07 8950.14 87 54 87 54 88 0 87 50 88 12 N 22.28 E 3.65 732.45N 704.53W N 22.54 E .82 761.58N 692.52W N 22.23 E 1.02 790.97N 680.42W N 23.14 E 2.91 820.22N 668.19W N 23.68 E 2.03 849.77N 655.39W 803.93 831.60 859.52 887.29 915.29 10736.89 9033.82 8950.89 10768.91 9034.28 8951.35 10797.62 9034.70 8951.77 10801.15 9034.76 8951.83 10832.89 9035.05 8952.12 89 89 89 89 89 8 11 6 6 5O N 24.40 E 3.66 879.12N 642.30W N 25.44 E 3.25 908.16N 628.81W N 25.17 E .99 934.11N 616.54W N 25.57 E 11.32 937.30N 615.03W N 25.11 E 2.75 965.98N 601.44W 943.07 970.48 994.97 997.97 1025.03 10864.71 9034.72 8951.79 10896.33 9034.05 8951.12 10928.11 9033.49 8950.56 10959.92 9033.04 8950.11 10991.53 9032.72 8949.79 91 19 91 6 90 55 90 42 90 25 N 25.27 E 4.65 994.78N 587.90W N 25.92 E 2.16 1023.29N 574.25W N 26.18 E 1.01 1051.83N 560.29W N 26.18 E .66 1080.38N 546.26W N 25.27 E 3.01 1108.85N 532.54W 1052.20 1079.08 1105.96 1132.83 1159.66 11023.34 9032.54 8949.61 11055.06 9032.54 8949.61 11086.81 9032.37 8949.44 11118.56 9031.29 8948.36 11150.44 9029.35 8946.42 90 13 89 46 90 49 93 3 93 56 N 25.72 E 1.56 1137.56N 518.85W N 25.76 E 1.39 1166.13N 505.07W N 25.28 E 3.64 1194.78N 491.40W N 23.23 E 9.54 1223.71N 478.36W N 24.09 E 3.86 1252.86N 465.59W 1186.74 1213.66 1240.68 1268.04 1295.64 S~_~RY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SH3~RED SERVICES DRILLING PBU / D-31A 500292267201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 MWD SURVEY JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 OPERATOR: BP EXPLORATION FT. TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS COURSE DLS TOTAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 11182.22 9027.26 8944.33 93 34 N 24.71 E 2.25 1281.73N 452.49W 1322.94 11213.94 9025.90 8942.97 91 21 N 25.45 E 7.38 1310.43N 439.06W 1350.03 11245.71 9025.20 8942.27 91 8 N 25.42 E .70 1339.12N 425.42W 1377.08 11277.45 9024.64 8941.71 90 53 N 24.51 E 2.97 1367.88N 412.03W 1404.25 11309.49 9024.53 8941.60 89 30 N 25.70 E 5.69 1396.89N 398.43W 1431.63 11341.02 9025.56 8942.63 86 43 N 25.27 E 8.92 1425.34N 384.88W 1458.45 11372.81 9027.51 8944.58 86 14 N 26.49 E 4.13 1453.88N 371.03W 1485.34 11404.57 9029.33 8946.40 87 11 N 25.84 E 3.62 1482.34N 357.05W 1512.13 11436.29 9030.34 8947.41 89 10 N 25.56 E 6.30 1510.90N 343.30W 1539.05 11468.05 9030.63 8947.70 89 46 N 25.77 E 2.03 1539.53N 329.55W 1566.03 11499.85 9030.72 8947.79 89 52 N 25.62 E .57 1568.18N 315.76W 1593.04 11531.50 9030.83 8947.90 89 43 N 24.86 E 2.45 1596.81N 302.26W 1620.05 11563.33 9030.87 8947.94 90 9 N 25.53 E 2.50 1625.61N 288.71W 1647.23 11595.17 9030.78 8947.85 90 11 N 25.26 E .86 1654.38N 275.06W 1674.36 11626.94 9030.71 8947.78 90 3 N 25.35 E .50 1683.10N 261.48W 1701.45 11658.63 9030.57 8947.64 90 25 N 25.79 E 1.81 1711.68N 247.80W 1728.40 11690.43 9030.35 8947.42 90 22 N 25.58 E .69 1740.34N 234.02W 1755.41 11722.27 9030.13 8947.21 90 24 N 25.74 E .51 1769.04N 220.23W 1782.46 11753.90 9030.07 8947.14 89 49 N 26.06 E 2.09 1797.49N 206.41W 1809.27 11785.64 9030.19 8947.26 89 45 N 25.45 E 1.94 1826.08N 192.62W 1836.20 11849.00 9030.57 8947.64 89 34 N 25.45 E .28 1883.29N 165.40W 1890.16 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 1890.54 FEET AT NORTH 5 DEG. 1 MIN. WEST AT MD = 11849 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 353.83 DEG. TIED INTO D-31 AT 3572.91' WINDOW POINT 3656' INTERPOLATED DEPTH 11849' RECEIVED JUL 1 ~ 1996 Al~)k: Oil & Q~ Oo!'~8. Oommi¢,iQri S~RRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU / D-31A 500292267201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 OPERATOR: BP EXPLORATION FT. INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 3572.91 3556.26 3473.33 118.91 S 240.52 W 4572.91 4544.37 4461.44 173.10 S 356.59 W 5572.91 5438.60 5355.67 382.91 S 748.37 W 6572.91 6320.94 6238.01 647.10 S 1137.40 W 7572.91 7287.51 7204.58 751.87 S 1340.30 W 16.65 28.54 11.89 134.31 105.77 251.97 117.66 285.40 33.43 8572.91 8286.77 8203.84 741.96 S 1369.80 W 9572.91 8999.14 8916.21 179.20 S 1113.70 W 10572.91 9028.35 8945.42 728.25 N 706.25 W 11572.91 9030.84 8947.92 1634.26 N 284.58 W 11849.00 9030.57 8947.64 1883.29 N 165.40 W 286.14 .74 573.77 287.63 1544.56 970.78 2542.07 997.51 2818.43 276.37 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SP~<RY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PSU / D-31A 500292267201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 FT. OPEKATOR: BP EXPLORATION INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 3572.91 3556.26 3473.33 3599.58 3582.93 3500.00 3699.60 3682.93 3600.00 3799.83 3782.93 3700.00 118.91 S 240.52 W 119.14 S 240.59 W 119.92 S 241.98 W 121.91 S 248.26 W 16.65 16.65 .00 16.67 .02 16.90 .23 3900.06 3882.93 3800.00 4000.31 3982.93 3900.00 4100.88 4082.93 4000.00 4201.94 4182.93 4100.00 4303.15 4282.93 4200.00 124.08 S 254.77 W 126.32 S 261.45 W 130.86 S 270.97 W 137.67 S 283.86 W 145.11 S 297.55 W 17.13 .23 17.38 .25 17.95 .56 19.01 1.06 20.22 1.21 4405.12 4382.93 4300.00 4508.53 4482.93 4400.00 4613.91 4582.93 4500.00 4721.22 4682.93 4600.00 4830.99 4782.93 4700.00 154.37 S 315.17 W 165.27 S 339.02 W 179.01 S 369.21 W 195.41 S 404.48 W 214.77 S 445.36 W 22.19 1.97 25.60 3.41 30.98 5.38 38.29 7.31 48.06 9.77 4941.78 4882.93 4800.00 5054.09 4982.93 4900.00 5167.48 5082.93 5000.00 5282.09 5182.93 5100.00 5396.03 5282.93 5200.00 235.00 S 488.54 W 258.84 S 533.75 W 283.88 S 580.95 W 310.98 S 629.92 W 339.19 S 676.66 W 58.85 10.79 71.16 12.32 84.55 13.38 99.16 14.61 113.10 13.94 5509.46 5382.93 5300.00 5623.38 5482.93 5400.00 5735.86 5582.93 5500.00 5848.69 5682.93 5600.00 5961.95 5782.93 5700.00 367.01 S 722.40 W 395.60 S 768.86 W 423.72 S 812.02 W 452.62 S 855.53 W 482.11 S 899.80 W 126.53 13.43 140.45 13.92 152.93 12.49 165.76 12.82 179.02 13.27 6075.75 5882.93 5800.00 6190.21 5982.93 5900.00 6304.62 6082.93 6000.00 6418.34 6182.93 6100.00 6530.82 6282.93 6200.00 512.42 S 944.87 W 543.67 S 990.95 W 575.34 S 1036.64 W 606.73 S 1080.74 W 636.88 S 1122.49 W 192.82 13.80 207.28 14.46 221.69 14.41 235.41 13.72 247.89 12.49 6640.88 6382.93 6300.00 6748.92 6482.93 6400.00 6855.07 6582.93 6500.00 6959.65 6682.93 6600.00 7062.97 6782.93 6700.00 662.27 S 1160.76 W 682.56 S 1196.21 W 699.14 S 1227.68 W 712.71 S 1255.03 W 723.58 S 1278.56 W 257.95 10.06 265.98 8.04 272.14 6.16 276.72 4.58 280.04 3.33 7165.30 6882.93 6800.00 732.76 S 1298.16 W 282.37 2.33 SPeRRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU / D-31A 500292267201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/6/96 DATE OF SURVEY: 052596 JOB NUMBER: AK-MM 960523 KELLY BUSHING ELEV. = 82.93 OPERATOR: BP EXPLORATION FT. INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD DIFFERENCE VERTICAL CORRECTION 7266.84 6982.93 6900.00 739.90 S 1314.13 W 283.91 1.54 7367.69 7082.93 7000.00 744.95 S 1326.00 W 284.76 .85 7468.07 7182.93 7100.00 748.54 S 1333.68 W 285.14 .38 7568.32 7282.93 7200.00 751.72 S 1340.02 W 285.39 .25 7668.57 7382.93 7300.00 754.84 S 1346.26 W 285.63 .24 7768.66 7482.93 7400.00 755.95 S 1350.33 W 285.73 .10 7868.73 7582.93 7500.00 756.35 S 1354.00 W 285.80 .07 7968.78 7682.93 7600.00 754.31 S 1356.41 W 285.85 .05 8068.83 7782.93 7700.00 752.32 S 1358.76 W 285.90 .05 8168.87 7882.93 7800.00 750.47 S 1361.05 W 285.94 .04 8268.92 7982.93 7900.00 748.59 S 1363.27 W 285.99 .04 8368.96 8082.93 8000.00 746.73 S 1365.36 W 286.03 .04 8469.00 8182.93 8100.00 744.83 S 1367.54 W 286.07 .04 8569.06 8282.93 8200.00 742.14 S 1369.72 W 286.13 .07 8670.00 8382.93 8300.00 729.24 S 1370.50 W 287.07 .94 8774.65 8482.93 8400.00 699.10 S 1367.52 W 291.72 4.65 8886.34 8582.93 8500.00 651.47 S 1354.20 W 303.42 11.70 9006.65 8682.93 8600.00 592.65 S 1323.10 W 323.72 20.30 9151.03 8782.93 8700.00 502.10 S 1272.73 W 368.10 44.38 9323.55 8882.93 8800.00 376.18 S 1210.29 W 440.62 72.53 9524.87 8982.93 8900.00 219.45 S 1134.28 W 541.94 101.32 11849.00 9030.57 8947.64 1883.29 N 165.40 W 2818.43 2276.49 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS RECEIVED JUL 1 2 199B Alaska Oil & P~s Oons. cflmmJssJo. Anchor,~ge SPERRY PBU / O-31A 500292267201 052596 NORTH SLOPE BOROUGH 3500" Z F-- EL_ tad CD q380- 5260 61L10' 7020- 7900- 8780- 9660 92 -SUN DR 1' LL I NO VERTICflL PROJECTION { 118u, 9 SERVICE5 START TVD = 3556.26 FINISH TVD = 9030.80 SCALE IS 880 FEET/IN SSOS 3.13 -goo 2~o VEBT I ERL SECT I ON 1890.31 FEET RT N 6 OEO 10 MIN 2o~,o C: \SURVET\O31A SPERRY PBU / D-31A 50029226720! 052596 NORTH SLOPE BOROUGH -SUN BR 'r LL I NO HORIZONTAL PROJECTION SERVICES START TVO = 3556.26 FINISH TVO = 9030.80 SCALE IS ~90 FEET/IN i -30~0 NEST SSOS 3.13 -2550 RECEIVED ,JUL 1 2 'l~j9~ ~0,1 & :Gas Cons. ComnlLSgt.qr, 118~9 i i i i -2060 - 1570 - 1080 -590 - 1 O0 DEPARTURE MOflIZONTRL OISPLF~CENENT [$ 1890.67 21~0 1650 1160 670 180 -310 -800 C:XSURVET\B3IR TONY KNOWLE$, GOVERNOR May 9, 1996 ALAS~& OIL ~D GAS CONSERVATION COMMISSION 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 Terry Jordan, Senior Drilling Engineer BP Exploration (Alaska), Inc. P O Box 196612 Anchorage, AK 99519-6612 Re: Company Permit # Surf Loc Btmhole Loc Prudhoe Bay Unit D-31A BP Exploration (Alaska), Inc. 96-095 1945'NSL, 1068'WEL, Sec 23, T11N, R13E, UM 3747'NSL, 1261'WEL, Sec 23, T11N, R13E, UM Dear Mr. Jordan: Enclosed is the approved application for permit to re-ddll the above referenced well. The permit to re-drill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting re-drilling operations until all other required permitting determinations are made. Approval for annular injection is contingent on the operator's submittal of an Application for Sundry Approvals (10-403) with pertinent facts and evaluation of surface hole conditions, casing placement, cementing, and any diagnostic logs that were run. The documentation submitted should assure the Commission that an adequate seal has been attained and that the well has been cased and cemented according to regulation. 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 pdor to ddlling a new hole. Notice may be given by contacting the Commission's petroleum field inspector on the North Slope pager at 659-3607. Sincerely, Tuckerman Babcock Commissioner BY ORDER OF THE COMMISSION Ijblencl 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 20 AAC 25.005 [] Drill [] Redrill Ilb' Type of well [] Exploratory [] Stratigraphic Test [] Development Oil la. Type°fw°rk []Re-Entry []Deepen~ []Service []Development Gas [-ISingle Zone r-I Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration (Alaska) Inc. Plan RTE = 80.6 Prudhoe Bay Field / Prudhoe 3. Address 6. Property Designation Bay Pool P.O. Box 196612, 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) 1945' NSL, 1068' WEL, SEC. 23, T11N, R13E Prudhoe Bay Unit At top of productive interval 8. Well Number Number 2S100302630-277 1938' NSL, 2089' WEL, SEC. 23, T11N, R13E D-31A At total depth 9. Approximate spud date Amount $200,000.00 3747' NSL, 1261' WEL, SEC. 23, T11N, R13E 05/09/96 i12. Distance to nearest property line113. Distance to nearest well i14. Number of acres in property 15. Proposed depth (MD and TVD) ADL 028286 3747'I D-08, 75.2 at 3815' MD 2560 11773' MD / 9040' TVD :.16. To be completed for deviated wells 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} Kick Off Depth 3875' Maximum Hole Angle 89.71 o Maximum surface 3300 psig, Attotal depth (TVD) 8800' / 4390 psig 18. Casing Program Setting Depth Size Specifications Top Bottom Quantity of Cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 9-7/8" 7-5/8" 29.7# USS-95 MOD Btc 9743' 30' 30' 9773' 9030 493 sx Class 'G' 6-3/4" 4-1/2" 12.6# L-80 IBT Mod 2150' 9623' 9014' 11773' 9040' 389 sx Class 'G' 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented MD TVD Structural Conductor ISn~erfra~diate Production Liner MAY 0 9 1995 Alaska 011 & Ga~ Cong. Commissi0. Perforation depth: measured Anchorage true vertical 20. Attachments [] Filing Fee [] Property Plat [] BOP Sketch [] Diverter Sketch [] Drilling Program [] Drilling Fluid Program [] Time vs Depth Plot [] Refraction Analysis [] Seabed Report [] 20 AAC 25.050 Requirements Kelli Bardwell 564-4809. .~ Prepared By Name/Number Terrie Hobble, 564-4628 Contact Engineer Name/Number: , 21. I hereby certify that the foregoing is true and correct to the b6~t of my knowledge Signed /~'.~ ~,~ ~////~, Ter~Uordan Title Senior Drilling Engineer Date Commission Use Only Permit Number I APl Number Ap, prove, J Date I See cover letter ~,~ ... C~_~ 50- C_~ ~., ~--- ~ ~ ~ ,~.~. '~5, / ,,.%/4:~ / ?~.~, for other requirements Conditions of Approval: Samples Required [] Yes "Jii~ No Mud Log Required [] Yes ~ No Hydrogen Sulfide Measures~i~Y'6s. [] No Directional Survey Required /18eYes [] No Required Working Pressure for BOPE [] 2M; []3M; ~ 5M; [] 10M; [] 15M Other: Original Signed By by order of _~.-/_/_~,,/,~//~ Approved By David W. Johnston Commissioner the commission Date.. Form 10-401 Rev. 12-01-85 Submit In Triplicate I Well Name: [ D-31A I Type of Well (producer or injector): I Producer Surface Location: 1945' FSL, 1068' FEL, SEC 23, T1 IN, R13E 1938' FSL, 2089' FEL, SEC 23, TI IN, R13E Target Location: Bottom Hole Location: 3747' FSL, 1261' FEL, SEC 23, T11N, R13E I AFE Number: 14P0763.0 I Estimated Start Date: ] May 9, 1996 Rig: I DOYON 9 [Days to complete 126 [MD: ] 11773' [ [TVD: [9040 brt' I IRTE: I80-6' [Well Design (conventional, slimhole, etc.): Formation Markers: [ Slimhole Horizontal Sidetrack Formation Tops TVD(brt) MD Base of Permafrost 2030 2041 10-3/4" Casing 3198 3215 already set 10' tvd above the TT4/T5/SV3 'I'I'4FF5/SV3 3260 3277 UGNU 4300 4320 SEABEE 5960 6161 I~ ~' t- ~. ~ ~, .. -~ LCU (KINGAK) 7480 7766 I~, 12 ~ !~ ! ~t I' L~ SAG RIVER 8525 8815 SHUBLIK 8555 8848 MAY 0 9 lone Sadlerochit (Z 4B) 8630 8932 .~ ~v Zone 3 8820 9202 ~aska 0ii & Gas Cons. C0mmisainn Zone 2C 8895 9323 /~ne~orage CGOC 8940 9402 Beginning of Horiz. 9030 9773 7" Casing 9030 9773 7-5/8" set once horiz target is achieved End of Horiz. 9040 11773 4-1/2" Liner Shoe Casing/Tubing Program: Hole Csg/Tbg Wt/Ft Grade Conn Length Top Btm Size O.D. MD/TVD MD/TVD 9-7/8" 7-5/8" 29.7# uss-95 Mod BTC 9743' 30' 9773'/9030' 6-3/4" 4 1/2" 12.6# L-80 I iBTMOD 2150' 9623'/9014' 11773'/9040' NA 4 1/2" 12.6# L-80 INSCTmtc Mod 9400' surface 9400'/8940' Mud Program: Intermediate Mud Properties: LSNDI 9-7/8" hole section Density (ppg)~lastic VilYield Point [ sec g la0I 9.2-10.2 ! 8-15 10-25 12-18 <30 pH I Fluid Loss 9.0-10.5 <5-15cc Production Mud Properties: Flo-Pro ! 6-3/4" hole section Density (ppg) ] LSRV [Yield Point[lO sec gel[lOmingel] 9.0 __+60,000 40-45 18-23 24-29 pH I Fluid Loss 8-9 <6cc D-31A Permit 5/8/96 Cement Data: Casing Lead:Sxs/bbls Tail: Sxs/bbls Comments Wt/Yield Wt/Yield 7-5/8" none 493 sx/101 bbls Class "G". 15.8 ppg/1.15 ft3/sx Volume based on cement to 1000' above the Sag River with 30% excess 4-1/2" none 389 sx/83 bbls Class "G". liner 15.8 ppg/1.2 ft3/sx Volume based on open hole with 40% excess Logging Program: Open Hole Logs: 9-7/8" MWD GR/CNL/RES: PU GR on last bit trip before drilling Sag River. PU CNL/Res before drilling thru Zone 3. 6-3/4" MWD GR/4 Phase Res/Dir I cased Hole Logs: None 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. Directional: KOP: 3875' MD Maximum Hole Angle: 89.71 degrees Close Approach Well: D-08: 75.2' away at3815' MD D-31A Permit 5/8/96 D-31A Request for AOGCC Approval: Disposal of Drilling Wastes (20AAC25.254) Note: The orginal wellbore, D-31, was abandoned with surface casing set. This well had been approved for annular injection. After setting the D-31 surface casing and drilling out, the surface shoe was tested with a LOT of 13.5 ppg EMW. D-31A will be a sidetrack out of the D-31 intermediate wellbore (open 9-7/8" hole). A surface casing shoe checklist will be filled out prior to commencing injection. . Approval is requested for annular pumping for well D-31A and the following wells previously permitted for disposal activities by AOGCC: AREA IWELL PREV VOL INJECTED PERMITTED VOL PERMITTED DATES PBU iD-31A0 BBLS 35,000 bbls awaiting approval PBU D-33 currently injecting 35,000 bbls 2/15/96-12/31/96 A surface casing shoe checklist will be filled out for all wells prior to commencing injection to insure best practices for achieving an adequate surface casing cement job have been applied. . The Base of the Permafrost for all wells located in the Prudhoe Bay Unit is _+2000 feet. Aquifers in the Prudhoe Bay Unit have been exempted from Class II injection activities by the AOGCC by Aquifer Exemption Order #1 as referenced in Area Injection Order #3. . The receiving zone to which the fluids will migrate is identified as the Cretaceous Ugnu geological formation at 4320 'TVD. A determination has been made that the pumping operation will not endanger the integrity of the well being drilled by the submission of data to AOGCC on 10/30/95 which demonstrates the confining layers, porosity and permeability of injection zone. . There are 32 wells on D-Pad. There may be additional unidentified wells within a 1/4 mile distance from the subject well. There are no domestic or industrial water wells located within 1 mile of the project area. . The drilling wastes to be disposed of during this operations can be defined as drilling mud, cement contaminated drilling mud, and drill cuttings; rig wash fluid (inclusive of rig boiler blow down, and mud and cement rinse water of associated rig equipment, completion fluids (seawater and brine), formation fluids, reserve pit fluids, and drill rig domestic waste water. The maximum volume to be disposed of in the annulus is 35,000 bbls. Fluid densities will range from 8.3 to 13.0 ppg. . The 10-3/4" surface casing shoe is set at 3215'md, 3198' TVD and cemented with 1299 sacks cement. This depth is below the base of the permafrost (2041' TVD) and into the Ugnu formation. The break down pressure of the Ugnu formation is approximately 13.5 ppg EMW, as demonstrated in the leak-off test conducted on 4/25/96 on well D-31. . D-31A (Proposed new sidetrack) 10-3/4", 45.5#, L-80 set and cemented at _+3215 MD (3198' TVD) Burst (80%) = 4170 psi 7-5/8", 29.7#, USS-95 set and cemented at _+9773' MD (9030' TVD) Collapse (80%) = 3832 psi D-31A Permit 5/8/96 . The Maximum Allowable Surface Pressure while annular pumping is the lesser of 2000 psi or the calculated pressure described below: Fluid Hydrostatic 9-5/8" Casing 7" Casing Max. Allowable Density .~Pressure at Burst at 80% Collapse at 80% Injection (ppg) ~ TVD(psi) (psi) (psi) Pressure (psi) 8.0 0 1 350 4640 4328 2,0 0 0 9.0 0 151 9 4640 4328 2,0 0 0 I O. 0 0 1 688 4640 4328 2,0 0 0 I I . O0 1857 4640 4328 2,0 0 0 I 2. O0 2026 4640 4328 2,0 0 0 I 3.00 21 94 4640 4328 2,000 . The maximum pressure imposed at the surface casing shoe is calculated by: Max Press= .052 x Max Breakdown ppg x Surf Csg Shoe TVD =3310 psi, but actual injection pressures will be limited to 2000 psi. This less than the 80% burst and collapse pressures calculated in #7. D-31A Permit 5/8/96 D-31A Drilling & Completion Procedure NOTE: Ensure that a Permit to Drill is approved by the AOGCC prior to beginning operations on D-31A. . Abandon D-31 as per D-31 P&A Procedure. This operation has been verbally approved by the AOGCC, and the sundry has been submitted. . . Set balanced kick-off plug as specified in the D-31 P&A Procedure. CBU and POOH. WOC -4 hours. .. PU 97/8'' assembly with MWD/Dir. Dress off cement to KOP at 3875' MD. Circulate hole clean. . Kick off and directionally drill 97/8'' intermediate section with MWD to second KOP at 8611' MD as per Recommended Practices for Intermediate Hole Vl.0. , PU 97/8'' steerable assembly with MWD/GR and build angle to 52° by the top of Zone 3. POOH and PU 97/8'' rotary assembly with MWD/GR/CNL to drill through Zone 3 and upper Zone 2. Prior to POOH, ensure that the hole is in good condition with multiple short trips, if necessary. POOH and PU 97/8'' steerable assembly to build at 10°/100' to horizontal by 9773' MD. . . . . 10. PU 97/8" hole opener and wipe section only if necessary. MU and RIH with 75/8'' casing string and cement as per well plan. PU 63/4'' steerable assembly. Clean out to 75/8" landing collar and test casing to 3500 psi for 30 min. Carry out D5 well kill drill. Drill 10' of 63/4'' hole with 9.5 ppg mud. Displace to 9.0 ppg FIo Pro mud system. Drill 63/4'' horizontal section to 11773' TD with MWD/GR/4-Phase-Res, as per Recommended Practices for Production Hole, VI.0.. MAD passes may be required after each bit trip. 11. Short trip as needed and circulate hole clean at TD. 12. Run 41/2'', L-80 solid liner assembly, with MLAS, to bottom. Space the liner hanger and packer 150' above the 75/8'' casing shoe. Cement the liner in place with the total cement volume based on 40% excess across the reservoir, 150' liner lap, top of cement 150' above the liner with drillpipe in the hole, and 80' shoe volume. 13. Set liner hanger and packer. Unsting running tool and reverse circulate excess cement from the wellbore. POOH. 14. RIH with mill. Clean out to landing collar. Test liner and liner lap to 3500 psi for 1 0 minutes. 1 5 . Displace well to clean, filtered seawater. Test liner and liner lap to 3500 psi for 30 minutes. D-31A Permit RECEIVED MAY 09 1996 5/8/96 16. 17. 18. 19. 20. RIH with drillpipe conveyed perforating guns and perforate the 41/2'' liner as per the attached procedure. POOH and lay down guns. RIH with 41/2'' L-80 completion with SSSV, 5 GLMs, and 75/8'' x 41/2'' packer. Packer should be set with the wireline reentry guide at -941)0' MD (<60° inclination). Displace tubing by casing annulus with inhibited brine. Set packer and test tubing to 4000 psi. Refer to the Recommended Practices for Running Tubing, V3.2. Set 2-way check valve. Test to 1000 psi. ND BOPs. NU tubing head adapter and tree. Test same to 5000 psi. Pull 2-way check valve. Test 41/2'' x 7~annulus to 3500 psi with 2000 psi on tubing. Shear RP valve. Freeze protect well through shear valve in top GLM station. Set BPV. Release rig. Drilling Hazards Maximum anticipated BHP: 3450 psi at 8800' ss Maximum surface pressure: 2570 psi at 8800'ss Planned completion fluid: 8.6 ppg filtered seawater a. The drilling fluid program and surface system will conform to the regulations set forth in 20AAC25.003. b. Maximum surface pressure is based on BHP and a column full of gas to TD (0.1 psi/ft). c. No potentially hazardous levels of H2S are anticipated on this well. The highest level of H2S measured on D-pad was 31 ppm on D-08. d. Drilling Hazards · The Ugnu/Cretaceous formation may be overpressured due to injection. mud weights may be 9.7-10.1 ppg. · No faults are expected to be crossed in this well trajectory. · A gas zone is present form the top of the Sag River to the current GCC. · Minor gas cut mud has been experienced at the LCU/Kingak interface. · The nearest close approach well is D-08 which is 75' away at 3518' MD. · Lost circulation is possible inthe Shublik, but is not expected. Required RECEIVED MAY 09 t996 011 & Ga~ Cons. Commissior~ Anchorage D-31A Permit 5/8/96 ~ALASKA~, &hared rvices BP Exploration/Arco To: Alaska Oil & Gas Conservation Commission Date: May 8, 1996 From: Subject: Terrie Hubble Technical Assistant Permit To Drill D-32 (Not Approved To Date) and Permit To Drill D-31A Per earlier conversations between Terry Jordan and Jack Hartz, the Permit To Drill D-32, which is in process at your office, will be canceled. The current well in progress for Doyon 9, D-31, has been determined to be 'wet' and will be plugged back for sidetrack per the attached 10-403. Also attached is a new Permit To Drill D-31A. Unfortunately, due to these unexpected problems we are requesting a rush approval of this permit. The planned spud date is tomorrow, 05/09/96. Thank you for your assistance. /tlh BPX - Shared Services Drilling Alaska SLate Plane' Zone4 PBU' WOA' D-Pad D-31 As-built D-31A Wp 1 RECEIVED 5/8/96 12,26 pm HORIZONTAL VIE.W (TRUE NORTH) SCALE 500 ft./ DIVISION SURVEY REF: WELLHEAD HALLI BURTDN VERTICAL VIEW SCALE 500 fl. / DIVISION TVD REP: WELLHEAD VERTICAL SECT|ON REF: WELLHEAD 0.00' @ 0 MD 0 0.09' @ 220 MD 0,10' it 401 MD 3.46' @ 579 MIl 3.97' @ 758 MD 5.28' · 935 MD 5.88' @ 1119 MD 6.33' @ 1214 MD 7.28' @ 1309 MD 7,75' 8 1406 MD 8.65' 8 1501 MD 8,71' ~ 1597MD 8,54' ~ 1692MD 8.07' e 1787MD 8.13' e 1883MD -~37 9,93' 8 2041 MD Dose Permo?ros% 10.06' @ 2168 MD 8.55' 8 2263 MD 8.02' ~ 2359MD 4.44' @ 2454MD 4.22' @ 2550MD 2.40' @ 2645MD 2~6'~ 2740MI) 2,33' I~2836MB 2,29' e 2931MD 0,38' @ 3026MD 0.42' e 3122MD 10 3/4 h~ DP, @ 3215 Ml), 3198TVD -90 -- 0.41' @ 3277 MD SV3 0.52' @ 3381 MD 0,47' 8 3477 MD 0.51' @ 3573MD 0.46' @ 3669MIl 0.41' @ 3761 MD -- -94 -115 -- -198 0.89' 8 3875 3.30' @ 3975 5.79' @ 4075 MD 8,28' @ 4175 MD Il.gl' @ 4320 MD UG4A 15,78' @ 4475 MD 18,27' @ 4575 MD 20.77' @ 4675 MI) 23~.7' · 4775 MD 8'9 1500 1000 500 0 500 2000 MD KOP / TIE iN / INTERPOLATED POINT / START OF CURVE @ 2,50'/100 Vt MD 28.00' @ 4964 MD END OF CURVE CRITICAL POINT DATA MD Inc Azl. TVD Bose 2041 9.93' 245.0&' 2030 Permafrost SV3 3277 0.41' 210,27' 3260 KOP / TIE IN / 3875 0.89' 212,59' 3858 INTERPOLATED POINT / START OF CURVE ~ 2.50'/100 F~ UG4A 4320il.91'240.72° 430{) END OF CURVE 49642~00' 242,00' 4903 CH3 616128,00'242.00' 5960 START OF 641428,00'242,00' 6184 CURVE @ 2.00'/100 ?f LCU / Top 77660,97' 242,00' 7480 727 K~ng~k END OF CURVE 7814~0' ~6.00° 7529 728 TJD 83460,00' 26,00' 8060 728 START 0? 86110.00' 26,00' 8325 728 CURVE ~ 10.00'/100 Ft TJB 86160.53' 26.00' 8330 ·728 Top SoS River881520.46'2&O0' 8525 695 Top Shubllk 884823.70'26.00' 8555 684 o~T°°cS°dler°ch{~ 893232.20'26.00' 8630 648 896335.20'26.00' 8655 634 ENDOF CURVE 913152,00' 26.00' 8776 530 TopZone 3 920252.00' 26,00' 8820 479 TopZone2C 932352,00' 26.00' 8895 393 START OF 933152,00' 26.00' 8900 3BB CURVE ~ 10.00'/100 ,F~ PGOC 940259.13' 26.01' 8940 335 25N '~.2~946765.60° 26.02' 8970 283 END OF CURVE9633 82.19' 26.03' 9016 141 START DF 9696 82,19' 26.03' 9025 84 CURVE ~ 10.00'/100 ?t 22N 9701 8~61' 25.95' 9025 BI END OF CURVE9773 89.71' 24.58' 9030 15 CDVC 1136389.71' 24,58' 9038 1431 Top HOT 1175389.71' 24.58' 9040 1786 ETorg 2 1177389.71' 24.58' 9040 1803 28.00' 8 6161 MD CM3 28.00' @ 6414 MD START 19F CURVE 8 2.00'/100 24.00' @ 6614 MD 20.00' {~ 6814 Ml) 18.00' @ 6914 MD 16.00' @ 7014 MD 14.00' @ 7114 MD 12.00' @ 7214 MI) I0,00' @ 7314 MD 8,00' @ 7414-MD 6,00' @ 7514MD 4.00' @ 7614MD 0.97'67766MD LCU / Top Klng~k 0.00'@7814MD END BF CURVE Dat;e PIo~%ed , 5/8/96 000 500 Creo%ed By ' i~ Checked By Approved By PROPOSED BHL TVD 9040.40 MD 11772.82 VS 1813.88 N/S 1803.37 N E/W 194.98 W 000 000 N/S 74 S 161 v 117 S 240 w 12l S 242 v 147 S 284 ~51S 476 515 S 978 570 S 1077 S 1373 v 1373 1373 1373 1373 1358 1352 1335 1327 1277 1258 1210 1208 lIB2 i157 lOB7 1059 S 1058 S 1027 N 365 N 203 N 195 -1000 VERTICAL SECTION PLANE: 353.83° 0.00' @ 8346 MD T JO 0.00' @ 8611 MD START DF CURVE @ 10.00'/100 ft 0.53' @ 8616 MD TJB lO.O0' @ 871l MD 20.46' @ 8815 MD Top Sag River 83.70' 8 8848 MD Top S_Rubllk 32.80' 8 8932 MD TOD ~Qdlerochlt 35.20' 8 8963 MD OGDC 58,00' 8 9131 MD END OF CURVE 52.00' Tpp Zone 3~ 52.00' !O)D zone ~u START OF CURVE 8 10.00'/100 F% P6OC _~65.60' 8 9467 MD 25N 89,71' 8 11363 MD COVC 89.71' ~ 11753 MD Top NOT 34 95 -~ 89,71' ~ 9773 MD END OF ~URV°E '-~ 89.71' ~ 11773 MD ETorg 2 1462 1797 1814 82.61' ~ 9701 MD 22N 82.19' ~ 9696 MB START l]F CURVE ~ lO.O0'/lO0 F% 82,19' ~ 9633 MD END OF CURVE 7 5/8 in OD, e 9775 MD, 9030 TVD 4 1/2 In OD, 8 11773 ND, 9040 TVD -500 0 500 1000 1500 2000 to DO u1 Torget Nome TVD NS EW Grid X Grid Y Poly 9040 I876 N 584 W 653500 5959530 ETor9 2 9040 1803 N 195 W 653890 5959465 BTor9 2 9030 5 S 1022 V 653100 5957640 Mid Torg 9030 944 N 598 V 653505 5958598 Mid I 9040 985 N 792 V 653310 5958635 Mid 2 9030 902 N 404 ~ 653700 5958560 Pol¥ I 9040 1876 N 584 W 653500 5959530 PoI¥ 2 9040 1803 N 195 W 653890 5959465 Pol¥ 3 9030 5 ~ 1022 W 653100 5957640 Poiy 4 9030 63 S 623 W 653500 5957590 CASING POINT DATA OD MD ]nc Azl TVD N/S I0 3/4 In3215 0.39' 212.55' 3198 116 S 239 W 7 5/8 In 9775 89.71'24.58' 9030 13 S 1026 V 4 I/2 In 11773 89.71' 24.58' 9040 lB03 N 195 V Halliburton Energy Services - Drilling Systems PSL Proposal Report Page 1 Date: 5/8/96 Time: 1:09 pm Wellpath ID: D-31A Wpl Last Revision: 5/8/96 Survey Reference: WELLHEAD Reference World Coordinates: Lat. 70.17.29 N- Long. 148.45.08 W Reference GRID System: Alaska State Plane Zone: Alaska 4 Reference GRID Coordinates: (fi): 5957666.13 N 654121.87 E North Aligned To: TRUE NORTH Vertical Section Reference: WELLHEAD Closure Reference: WELLHEAD TVD Reference: WELLHEAD Calculated using the Minimum Curvature Method Computed using WIN-CADDS REV2.2.1 Vertical Section Plane: 353.83 deg. BPX - Shared Services Drilling Alaska State Plane: Zone4 PBU: WOA: D-Pad D-31 As-built D-31A Wpl Measured Incl Drift Subsea TVD Course T O T A L Depth Dir. Depth Length Rectangular Offsets (R) (deg.) (deg.) (ft) (R) (R) (ft) (R) GRID Coordinates Northing Easting (ft) Closure Vertical Build Walk DLS Cum. Expected Total Max Hor Min Hor Dir. Vert Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (ft) (deg.) (fO (dg/lOOff) (dg/lOOfl) (dg/lOOft) (deg) (ft) (ft) (fl) (fi) (deg.) Survey Tool 0.00 0.00 0.00 -80.60 0.00 0.00 0.00N 219.87 0.09 30.13 139.27 219.87 219.87 0.15N 309.87 0.08 237.11 229.27 309.87 90.00 0.18N 0.00E 5957666.13 654121.87 0.09£ 5957666.29 654121.95 0.07E 5957666.31 654121.93 0.00~ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00 E 0.00 0.17@ 30.13 0.14 0.04 0.00 0.04 0.1 0.15N 0.09E 2.00 0.1~ 21.48 0.17 -0.01 -170.02 0.18 0.3 0.18N 0.07 E 2.00 0.00 0.00 0.00 BPHM-PBD 2.00 300.13 0.21 BPFIM-PBD 2.00 309.91 0.34 BPHM-PBD 400.51 0. I0 271.64 319.91 400.51 90.64 0.14N 490.00 1.08 256.57 409.39 489.99 89.49 0.05 S 579.37 3.46 256.31 498.69 579.29 89.37 0.88 S O.Oeq~q 5957666.28 654121.80 0.9C~r 5957666.06 654120.91 4.4CW 5957665.16 654117.49 0.16~336.48 0.15 0.02 38.10 0.06 0.3 0.14N 0.0cow 2.00 0.96~267.06 0.05 1.I0 -16.84 1.10 1.3 0.05 S 0.9cctv 2.00 4.4~258.65 -0.41 2.66 -0.29 2.66 3.7 0.90 S 4.4C~ 2.02 2.00 325.90 0.48 BPHM-PBD 2.00 342.26 0.61 BPHM-PBD 2.01 345.18 0.75 BPHM-PBD 668.37 4.09 256.64 587.49 668.09 89.00 2.25 S 758.27 3.97 251.13 677.17 757.77 89.90 4.00 S 847.22 4.25 247.25 765.89 846.49 88.95 6.27 S 935.44 5.28 241.38 853.81 934.41 88.22 9.48 S 1024.87 5.78 242.04 942.82 1023.42 89.43 13.56 S 1118.63 5.88 240.33 1036.10 1116.70 93.76 18.15 S 10. lOW 5957663.68 654111.82 I0.35~257.43 -1.15 16.1e3~V 5957661.80 654105.79 16.65~256.10 -2.24 22.12W 5957659.41 654099.89 22.99~254.17 -3.86 28.65W 5957656.07 654093.38 30.22~251.72 -6.34 36.28W 5957651.83 654085.87 38.73~249.51 -9.58 44.63W 5957647.07 654077.63 48.18~247.87 -13.25 0.71 0.37 0.71 4.3 2.30 S 10.05'~ 2.06 -0.13 -6.13 0.45 4.7 4.07 S 16.14W 2.13 0.31 -4.36 0.44 5.1 6.37 S 22.05'W 2.22 1.17 -6.65 1.29 6.2 9.61 S 28.64W 2.35 0.56 0.74 0.56 6.7 13.74 S 36.21W 2.53 0.11 -1.82 0.21 6.9 18.37 S 44.53W 2.75 2.01 345.85 0.88 BPFIM-PBD 2.02 344.38 1.02 BPHM-PBD 2.03 342.62 1.15 BPHM-PBD 2.05 339.99 1.28 BPHM-PBD 2.07 338.34 1.41 BPHM-PBD 2.09 336.89 1.55 BPHM-PBD 1213.59 6.33 247.31 1130.52 1211.12 94.96 22.58 S 1308.72 7.28 248.61 1224.98 1305.58 95.13 26.80 S 1405.93 7.75 248.26 1321.35 1401.95 97.21 31.47 S 53.68W 5957642.46 654068.66 58.24~247.19 -16.68 64.13W 5957638.03 654058.30 69.51~247.32 -19.75 75.96W 5957633.11 654046.58 82.22~247.49 -23.13 0.47 7.35 1.00 1.37 0.48 -0.36 0.91 7.8 22.86 S 53.5~V 3.02 1.01 8.8 27.16 S 63.98W 3.35 0.49 9.3 31.93 S 75.77W 3.74 2.13 336.96 1.70 BPHM-PBD 2.18 337.23 1.84 BPHM-PBD 2.23 337.38 1.98 BPHM-PBD 1501.39 8.65 242.67 1415.84 1496.44 95.46 37.15 S 88.31W 5957627.18 654034.34 95.81~247.18 -27.45 1597.02 8.71 241.04 1510.37 1590.97 95.63 43.96 S 101.04W 5957620.11 654021.76 I10.19~46.49 -32.85 1692.41 8.54 241.62 1604.68 1685.28 95.39 50.83 S 113.55'W 5957612.99 654009.35 124.44~245.89 -38.32 1787.46 8.07 242.42 1698.74 1779.34 95.05 57.27 S 125.71W 5957606.30 653997.37 138.14~245.51 -43.42 1882.93 8.13 243.87 1793.25 1873.85 95.47 63.34 S 137.71W 5957599.99 653985.49 151.58~245.30 -48.17 1978.58 9.79 244.64 1887.73 1968.33 95.65 69.81S 151.13W 5957593.25 653972.21 166.48~245.21 -53.16 Base Perma~ost 2041.48 9.93 245.06 1949.70 2030.30 62.90 74.39 S 160.88W 5957588.47 653962.55 177.25~245.19 -56.66 2074.02 10.01 245.27 1981.75 2062.35 32.54 76.75 S 166.0CW 5957586.00 653957.49 182.88~245.19 -58.46 0.94 0.06 -0.18 -0.49 0.06 1.74 0.23 0.23 -5.86 -1.70 0.61 0.84 1.52 0.81 0.66 0.65 1.26 10.5 37.71S 88.09W 4.18 0.26 10.7 44.62S 100.73W 4.64 0.20 10.9 51.59 S 113.23W 5.10 0.51 11.4 58.12 S 125.31W 5.54 0.22 11.6 64.29 S 137.2e'W 5.99 1.74 13.3 70.89 S 150.62W 6.55 0.26 13.4 75.56 S 160.33W 6.92 0.26 13.5 77.98 S 165.42W 7.12 2.30 336.71 2.13 BPHM-PBD 2.38 336.01 2.27 BPHM-PBD 2.47 335.53 2.41 BPHM-PBD 2.55 335.24 2.55 BPHM-PBD 2.64 335.12 2.70 BPHM-PBD 2.76 335.08 2.84 BPHM-PBD 2.84 335.08 2.94 BPHM-PBD 2.88 335.08 2.98 BPHM-PBD Measured Incl Drift Subsea TVD Course T O T A L Depth Dir. Depth Length Rectangular Offsets (ft) (deg.) (deg.) fit) (ft) (fl) (it) (ft) (ft) (ft) 2167.75 10.06 245.20 2074.05 2154.65 93.73 83.59S 180.83W 5957578.86 653942.80 199.22(~245.19 -63.67 2263.14 8.55 244.51 2168.18 2248.78 95.39 90.14S 194.7~/ 5957572.03 653928.98 214.64~245.17 -68.68 2358.83 8.02 244.35 2262.87 2343.47 95.69 96.09S 207.23W 5957565.82 653916.66 228.43~245.12 -73.26 2454.15 4.44 236.88 2357.61 2438.21 95.32 100.99 S 216.3TN 5957560.74 653907.68 238.73(~244.97 -77.15 2549.53 4.22 237.81 2452.72 2533.32 95.38 104.87S 222.38W 5957556.73 653901.70 245.87(~244.75 -80.36 2645.11 2.40 237.74 2548.14 2628.74 95.58 107.82S 227.05W 5957553.70 653897.09 251.35~244.60 -82.78 2740.19 2.26 240.14 2643.14 2723.74 95.08 109.81 S 230.3e'W 5957551.63 653893.82 255.19~244.51 -84A1 2835.80 2.33 235.70 2738.67 2819.27 95.61 111.85 S 233.60fit 5957549.53 653890.63 259.00(~244.42 -86.09 2930.77 2.29 236.21 2833.57 2914.17 94.97 113.99 S 236.79W 5957547.33 653887.50 262.78~244.29 -87.88 3026.16 0.38 230.06 2928.93 3009.53 95.39 115.25 S 238.6CW 5957546.03 653885.70 264.9g~244.22 -88.94 3121.60 0.42 222.46 3024.36 3104.96 95.44 115.71 S 239.0833/ 5957545.56 653885.23 265.61~244.17 -89.34 3172.35 0.38 214.24 3075.11 3155.71 50.75 115.99S 239.3CW 5957545.28 653885.01 265.93~244.14 -89.59 CASING POINT OD = 10 3/4 in, ID = 9.76 in, Weight = 55.50 lb/ff. 3215.00 0.39 212.55 3117.76 3198.36 42.65 116.23 S 239.4e'W 5957545.03 653884.86 266.17(~244.11 -89.82 SV3 3276.94 0.41 210.27 3179.70 3260.30 61.94 116.60 S 239.68W 5957544.66 653884.64 266.54~244.06 -90.16 3286.20 0.41 209.94 3188.96 3269.56 9.26 116.65 S 239.71W 5957544.60 653884.61 266.59(~244.05 -90.21 3381.04 0.52 198.17 3283.80 3364.40 94.84 117.36 S 240.02W 5957543.89 653884.32 267.17~243.94 -90.88 3477.04 0.47 199.74 3379.79 3460.39 96.00 '118.14 S 240.2~'W 5957543.10 653884.07 267.76(~243.82 -91.63 3572.91 0.51 196.65 3475.66 3556.26 95.87 118.92 S 240.54W 5957542.32 653883.83 268.33~243.69 -92.38 3668.50 0.46 199.54 3571.25 3651.85 95.59 119.69S 240.75~V 5957541.55 653883.60 268.90(~243.57 -93.11 3761.17 0.41 213.20 3663.91 3744.51 92.67 120.32S 241.16W 5957540.91 653883.30 269.45~243.48 -93.70 3856.55 0.41 211.47 3759.29 3839.89 95.38 120.89 S 241.4eq/q 5957540.33 653882.95 270.04(~243.40 -94.24 LOP / TIE 1N / INTERPOLATED POINT / START OF CURVE ~ 2.50 deg/100 ft 3875.00 0.89 212.59 3777.74 3858.34 18.45 121.07 S 241.57W 5957540.15 653882.84 270.~43.38 -94.40 3975.00 3.30 235.04 3877.67 3958.27 100.00 123.38 S 244.35W 5957537.79 653880.11 273.73(~243.21 -96.40 4075.00 5.79 238.41 3977.34 4057.94 100.00 127.67 S 251.01~W i'5957533'36 653873.55 281.61@243.04 -99.95 4175.00 8.28 239.76 4076.58 4157.18 100.00 133.94 S 261.52W 5957526.88 653863.16 293.83~242.88 -105.05 4275.00 10.78 240.49 4175.20 4255.80 100.00 142.17S 275.88W 5957518.35 653848.97 31036~242.74 -111.69 IG4A 4320.39 11.91 240.72 4219.70 430030 45.39 146.55 S 283.66V 5957513.81 653841.29 319.2~242.68 -115.21 4375.00 13.28 240.94 4272.99 4353.59 54.61 15236 S 294.0OK 5957507.80 653831.01 331.E~1242.61 -119.86 4475.00 15.78 241.26 4369.79 445039 100.00 1,54.47 S 316.02W 5957495.24 65380930 356.26~A2.51 -129.55 4575.00 18.27 241.48 4465.40 4546.00 100.00 178.50 S 341.72W 5957480.69 653783.90 385.53(~242.42 -140.73 4675.00 20.77 241.66 4559.64 4640.24 100.00 194.40 S 371.11W 5957464.19 653754.84 418.95(~24235 -153.38 4775.00 23.27 241.80 4652.34 4732.94 100.00 212.16 S 404.14W 5957445.76 653722.19 456.44(~242.30 -167.49 4875.00 25.77 241.91 4743.31 4823.91 I00.00 231.73S 440.73W 5957425.45 653686.00 497.94(~242.27 -183.01 ND OF CURVE 4964.10 28.00 242.00 4822.77 4903.37 89.10 250.67 S 476.2%V 5957405.78 653650.84 538.23~242.24 -198.02 M3 6161.14 28.00 242.00 5879.70 5960.30 1197.05 514.51S 972.4~'W 5957131.90 653160.17 1100.21~242.12 -406.99 Halliburton Energy Services - Drilling Systems PSL Proposal Report GRID Coordinates Closure Vertical Build Walk DLS Cum. Expected Total Max Hor Min Hor Dir. Vert Northing Easting Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (ft) (deg.) (ft) (dg/lOOft) (dgJlOOft) (dgtlOOit) (deg) (It) (It) (ft) 0.05 -0.07 -1.58 -0.72 '-0.55 -0.17 0.05 13.6 84.96 S 180.18W 7.69 1.59 15.1 91.61 S 194.1cqq 8.18 0.55 15.6 97.66 S 206.4~q' 8.64 -3.76 -7.84 -0_23 0.98 -1.90 -0.07 -0.15 2.52 0.07 -4.64 -0.04 0.54 -2.00 -6.45 0.04 -7.96 -0.08 -16.20 3.84 19.3 102.58 S 215.5~ 8.89 0.24 19.5 106.49 S 221.61W 9.13 1.90 21.3 109.44 S 226.27W 9.27 0.18 21.5 111.44 S 229.58W 939 0.20 21.7 113.48 S 232.82W 9.53 0.05 21.7 115.63 S 235.98W 9.65 2.01 23.6 116.89 S 237.81W 9.68 0.07 23.7 117.35 S 238.2~/ 9.70 0.14 23.8 117.63 S 238.51W 9.71 (deg.) (it) Page 2 Date: 518/96 Wellpath ID: D-31A Wpl Survey Tool 3.00 335.09 3.12 BPHM-PBD 3.12 335.05 3.27 BPHM-PBD 3223 335.01 3.41 BPHM-PBD 3.29 334.77 3.55 BPHM-PBD 335 334.58 3.69 BPHM-PBD 339 334.48 3.84 BPHM-PBD 3.43 334.42 3.98 BPHM-PBD 3.46 334.29 4.12 BPHM-PBD 3.50 334.18 4.26 BPHM-PBD 3.51 334.15 4.41 BPHM-PBD 3.52 334.09 4.55 BPHM-PBD 3.53 334.06 4.63 BPHM-PBD 0.03 -3.96 0.03 -3.69 0.03 -3.52 0.12 -12.41 -0.05 1.64 0.04 -3.22 -0.05 3.02 -0.05 14.74 0.00 -1.81 0.04 23.8 116.23 S 239.4eq~I 0.00 0.00 0.00 0.00 BPHM-PBD 0.04 23.8 118.24 S 238.8~V 9.73 0.04 23.8 11830 S 238.92W 9.74 0.15 24.0 119.00 S 239.23W 0.05 24.0 119.78 S 239.5CW 0.05 24.1 120.56 S 239.75W 0.06 24.1 121.33 S 240.0CW 0.12 24.2 121.96 S 240.31W 0.01 24.2 122.54 S 240.67W 3.54 333.97 4.78 BPHM-PBD 3.54 333.96 4.80 BPHM-PBD 9.76 3.55 333.84 4.94 BPHM-PBD 9.78 3.56 333.73 5.08 BPHM-PBD 9.80 3.57 333.60 5.23 BPI-IM-PBD 9.82 3.59 333.49 5.37 BPHM-PBD 9.84 3.60 333.42 5.51 BPHM-PBD 9.87 3.61 333.35 5.65 BPHM-PBD 2.61 2.41 2.49 2.49 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 0.00 6.07 22.45 3.37 135 0.73 0.51 0.41 0.31 0.23 0.18 0.14 0.11 0. I0 0.00 2.61 24.7 122.71 S 240.7~ 9.88 2.50 27.2 125.03 S 243.55W 10.07 2.50 29.7 129.37 S 250.11~V 10.42 3.61 333.32 5.68 BPHM-PBD 3.67 333.15 5.83 BPHM-PBD 3.76 332.98 5.98 BPHM-PBD 2.50 32.2 135.73 S 260.64W 10.92 2.50 34.7 144.13 S 274.91W 11.59 3.88 332.83 6.13 BPHM-PBD 4.05 332.69 6.28 BPHM-PBD 2.50 35.9 148.60 S 282.64W 11.92 4.13 332.63 635 BPHM-PBD 2.50 37.2 154.54 S 292.9e3/~ 1238 4.24 332.57 6.43 BPHM-PBD 2.50 39.7 167.00 S 314.73W 1337 4.48 332.47 6.58 BPI-IM-PBD 2.50 42.2 181.49 S 340.1813/ 14.54 4.76 33239 6.74 BPHM-PBD 2.50 44.7 197.99 S 369.25W 15.90 2.50 47.2 216.49 $ 401.87W 17.44 2.50 49.7 236.96 S 437.9~V 19.18 5.07 33233 6.89 BPHM-PBD 5.41 332.28 7.05 BPHM-PBD 5.79 332.25 7.22 BPHM-PBD 2.50 51.9 256.83 S 473.05W 20.89 6.16 332.23 7.38 BPHM-PBD 0.00 51.9 533.23 S 962.57W 44.61 11.24 332.11 0.7~ Ilpl4x,~_vnr~ Halliburton Energy Services - Drilling Systems PSL Proposal Report Measured Incl Driit Subsea TVD Course T O T A L GRID Coordinates Depth Dir. Depth Length Rectangular Offsets Northing Easting (it) (deg.) (deg.) (it) (fi) .(fi) (a) (it) (it) (it) START OF CURVE ~ 2.00 deg/100 it 6414.10 28.00 242.00 6103.04 6183.64 252.95 570.26 S 1077.34W 5957074.03 653056.48 1218.96~242.11 451.15 0.00 0.00 6514.10 26.00 242.00 6192.14 6272.74 100.00 591.57 S 1117.43W 5957051.91 653016.84 1264.36~242.10 -468.03 -2.00 0.00 6614.10 24.00 242.00 6282.76 6363.36 100.00 611.41 S 1154.7413/ 5957031.31 652979.94 1306.62~242.10 -483.74 -2.00 0.00 6714.10 22.00 242.00 6374.81 6455.41 I00.00 629.75 S I189.24W 5957012.28 652945.83 1345.69(~242.10 -498.27 -2.00 0.00 6814.10 20.00 242.00 6468.16 6548.76 100.00 646.58 S 1220.88W 5956994.81 652914.54 1381.52~242.09 -511.59 -2.00 0.00 6914.10 18.00 242.00 6562.71 6643.31 100.00 661.86S 1249.62W 5956978.95 652886.11 1414.08~242.09 -523.70 -2.00 0.00 7014.10 16.00 242.00 6658.34 6738.94 100.00 675.58 S 1275.44W 5956964.70 652860.58 1443.31~242.09 -534.57 -2.00 0.00 7114.10 14.00 242.00 6754.92 6835.52 100.00 687.73 S 1298.2~W 5956952.09 652837.99 1469.1~242.09 -544.19 -2.00 0.00 7214.10 12.00 242.00 6852.36 6932.96 100.00 698.30 S 1318.15W 5956941.13 652818.34 1491.69(~242.09 -552.56 -2.00 0.00 7314.10 I0.00 242.00 6950.51 7031.11 100.00 707.25 S 1335.0CW 5956931.83 652801.68 1510.77~242.09 -559.65 -2.00 0.00 7414.10 8.00 242.00 7049.28 7129.88 I00.00 714.60S 1348.81W 5956924.21 652788.03 1526.41@242.09 -565.47 -2.00 0.00 7514.10 6.00 242.00 7148.53 7229.13 100.00 720.32S 1359.5TW 5956918.27 652777.39 1538.60~242.08 -570.00 -2.00 0.00' 7614.10 4.00 242.00 7248.14 7328.74 100.00 724.41 S 1367.2cqv 5956914.03 652769.78 1547.31~242.08 -573.24 -2.00 0.00 7714.10 2.00 242.00 7348.00 7428.60 100.00 726.87S 1371.88W 5956911.48 652765.21 1552.54~242.08 -575.19 -2.00 0.00 LCU / Top Kingak 7765.81 0.97 242.00 7399.70 7480.30 51.72 727.49 S 1373.0e'W 5956910.82 652764.04 1553.88(~242.08 -575.68 -2.00 0.00 END OF CURVE 7814.10 0.00 0.00 7447.98 7528.58 48.28 727.69 S 1373.42W 5956910.63 652763.68 1554.2~242.08 -575.83 -2.00 244.40 TJD 8345.82 0.00 0.00 7979.70 8060.30 531.72 727.69 S 1373.4TW 5956910.63 652763.68 1554.29(~242.08 -575.83 0.00 0.00 8566.35 0.00 0.00 8200.23 8280.83 220.53 727.69 S 1373.4TW 5956910.63 652763.68 1554.29(~242.08 -575.83 0.00 0.00 START OF CURVE ~ 10.00 deg/100 it 8610.52 0.00 0.00 8244.40 8325.00 44.17 727.69 S 1373.4TW 5956910.63 652763.68 1554.29~242.08 -575.83 0.00 0.00 TJB Closure Vertical Build Walk DLS Cum. Expected Total Max Hor Min Hor Dir. Vert Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (fi) (deg.) (it) (dg/lOOfi) (dg/lOOfi) (dg/lOOfi) (deg) (fi) (fl) (fi) (fl~) (deg.) (t~) Page 3 Date: 5/8/96 Wellpath ID: D-31A Wpl Survey Tool 0.00 51.9 591.64 S 1066.01W 49.68 12.34 332.09 10.31 BPHM-PBD 2.00 53.9 613.87 S 1105.61W 51.52 12.75 332.09 10.52 BPHM-PBD 2.00 55.9 634.49 S 1142.5CW 53.20 13.15 332.09 10.72 BPHM-PBD 2.00 57.9 653.50 S 1176.65W 54.71 13.51 332.09 10.91 BPHM-PBD 2.00 59.9 670.89 S 1207.9S'W 56.06 13.85 332.08 11.09 BPHM-PBD 2.00 61.9 686.62 S 1236.4gW 57.25 14.16 332.08 11.26 BPHM-PBD 2.00 63.9 700.71 S 1262.12W 58.29 14.44 332.08 11.42 BPHM-PBD 2.00 65.9 713.14 S 1284.8TW 59.18 14.69 332.08 11.57 BPHM-PBD 2.00 67.9 723.91 S 1304.57W 59.93 14.91 332.08 11.72 BPHM-PBD 2.00 69.9 733.01 S 1321.34W 60.54 15.09 332.08 11.87 BPHM-PBD 2.00 71.9 740.44 S 1335.1CW 61.01 15.24 332.08 12.00 BPHM-PBD 2.00 73.9 746.22 S 1345.83W 61.36 15.35 332.08 12.14 BPHM-PBD 2.00 75.9 750.33 S 1353.5TW 61.59 15.43 332.08 12.27 BPHM-PBD 2.00 77.9 752.79 S 1358.14W 61.70 15.47 332.08 12.41 BPHM-PBD 2.00 79.0 753.42 S 1359.3TW 61.73 15.48 332.08 12.48 BPHM-PBD 2.00 79.9 753.61 S 1359.68W 61.73 15.48 332.08 12.54 BPHM-PBD 0.00 79.9 753.61 S 1359.68W 61.73 15.50 332.08 13.26 BPHM-PBD 0.00 79.9 753.61 S 1359.68W 61.73 15.51 332.08 13.56 BPHM-PBD 0.00 79.9 753.61 S 1359.68W 61.73 15.51 332.08 13.62 BPHM-PBD 8615.82 0.53 26.00 8249.70 8330.30 5.30 727.66 S 1373.41W 5956910.65 652763.69 1554.27~242.08 -575.81 10.00 490.58 10.00 80.5 753.59 S 1359.6e'W 61.74 15.51 332.08 13.62 BPHM-PBD 8710.52 10.00 26.00 8343.89 8424.49 94.70 719.86 S 1369.61W 5956918.52 652767.34 1547.26~242.27 -568.47 10.00 0.00 10.00 89.9 745.82 S 1355.7gW 62.17 15.65 331.78 13.77 BPHM-PBD · 8810.52 20.00 26.00 8440.36 8520.96 100.00 696.63 S 1358.28W 5956941.98 652778.19 1526.50~242.85 -546.59 10.00 0.00 10.00 99.9 722.73 S 1344.18W 63.15 15.92 331.15 13.96 BPHM-PBD Top Sag River 8815.14 20.46 26.00 8444.70 8525.30 4.62 695.19 S 1357.58W 5956943.43 652778.86 1525~22~242.88 -545.23 10.00 -0.00 I0.00 100.4 721.30 S 1343.4EW 63.20 15.93 331.12 13.97 BPHM-PBD Top Shublik 8847.52 23.70 26.00 8474.70 8555.30 32.38 684.25 S 1352.24W 5956954.48 652783.97 1515.51~243.16 -534.93 10.00 -0.00 10.00 103.6 710.42 S 1338.0CW 63.58 16.03 330.88 14.04 BPHM-PBD 8910.52 30.00 26.00 8530.88 8611.48 63.00 658.69 S 1339.7TW 5956980.28 652795.92 1492.94~243.82 -510.86 10.00 0.00 10.00 109.9 685.04 S 1325.1e'W 64.54 16.26 330.28 14.20 BPHM-PBD Top Sadlerochit 8932.50 32.20 26.00 8549.70 8630.30 21.98 648.49S 1334.8CW 5956990.59 652800.68 1483.9e~244.09 -501.25 10.00 0.00 10.00 112.1 674.91S 1320.0313/ 64.90 16.34 330.06 14.26 BPHM-PBD 8962.55 35.20 26.00 8574.70 8655.30 30.05 633.50 S 1327.4gW 5957005.72 652807.69 1470.90~244.49 -487.13 10.00 -0.00 10.00 115.1 660.04 S 1312.48W 65.45 16.46 329.73 14.35 BPHM-PBD 9010.52 40.00 26.00 8612.69 8693.29 47.96 607.20 S 1314.6EW 5957032.27 652819.97 1448.11~245.21 -462.37 10.00 0.00 10.00 119.9 633.98 S 1299.1813/ 66.45 16.66 329.15 14.51 BPHM-PBD 9110.52 50.00 26.00 8683.31 8763.91 100.00 543.73 S 1283.7CW 5957096.35 652849.63 1394.11~247.04 -402.59 10.00 0.00 10.00 129.9 571.20 S 1266.81W 69.06 17.08 327.71 14.91 BPHM-PBD END OF CURVE 9130.52 52.00 26.00 8695.90 8776.50 20.00 529.76 S 1276.8gW 5957110.45 652856.15 1382.42~247.47 -389.43 10.00 0.00 10.00 131.9 557.37 S 1259.6~'W 69.61 17.16 327.42 15.00 BPHM-PBD Top Zone 3 Measured Incl Drift Subsea TVD Course T O T A L Depth Dir. Depth Length Rectangular Offsets (ft) (deg.) (deg.) (ft) (ft) (ft) (ft) (ft) Halliburton Energy Services - Drilling Systems PSL Proposal Report GRID Coordinates Closure Vertical Build Walk DLS Cum. Expected Total Max Hot Min Hor Dir. Vert Northing Easting Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (1t) (ft) (ft) (deg.) (ft) (dg/100fl) (do~/100ft) (dg/10Oft) ((leg) (f0 (ft) (ft). (ft) (deg.) (tt) 9201.66 52.00 26.00 8739.70 8820.30 71.15 479.37 S 1252.31W 5957161.33 652879.70 1340.93~249.05 -341.98 0.00 Top Zone 2C 9323.48 52.00 26.00 8814.70 8895.30 121.82 393.09 S 1210.23W 5957248.44 652920.01 1272.47@252.01 -260.72 0.00 START OF CURVE ~ 10.00 d¢g/100 ft 9331.12 52.00 26.00 8819.40 8900.00 7.63 387.68 S 1207.5~/ 5957253.90 652922.53 1268.30~252.20 -255.63 0.00 PGOC 9402.43 59.13 26.01 8859.70 8940.30 71.32 334.85 S 1181.82W 5957307.24 652947.22 1228.34~254.18 -205.88 10.00 9431.12 62.00 26.01 8873.79 8954.39 28.68 312.40 S 1170.87W 5957329.91 652957.71 1211.83(~255.06 -184.73 10.00 25N 9467.15 65.60 26.02 8889.70 8970.30 36.03 283.35 S I156.6~7~r 5957359.24 652971~.9 1190.89~.56.24 -157.38 10.00 9531.12 72.00 26.02 8912.82 8993.42 63.97 229.79 S 1130.54W 5957413.32 652996.34 1153.6fX~258.51 -106.93 10.00 9631.12 82.00 26.03 8935.28 9015.88 I00.00 142.35 S 1087.83W 5957501.61 653037.25 1097.11@262.55 -24.59 10.00 END OF CURVE 9633.05 82.19 26.03 8935.55 9016.15 1.94 140.62 S I086.98W 5957503.35 653038.05 1096.05~262.63 -22.96 10.00 START OF CURVE @ 10.00 deg/100 ft 9696.31 82.19 26.03 8944.14 9024.74 63.25 84.31 S 1059.453tV 5957560.20 653064.40 1062.84~265.45 30.06 22N 9700.52 82,61 25.95 8944.70 9025.30 4.21 80.56 S I057.6Ce5t/ 5957563.99 653066.15 1060.7~,265.64 33.60 END OF CURVE 9772.82 89.71 24.58 8949.54 9030.14 72.30 15.37 S 1026.85W 5957629.79 653095.58 I027.01~269.14 95.11 CASING POINT OD = 7 5/8 in, ID = 6 5/8 in, Weight = 39.00 lb/R. 9775.00 89.71 24.58 8949.55 9030.15 2.18 13.38 S 1025.953~/ 5957631.79 653096.45 1026.07(~269.25 96.98 0.00 COWC 11363.43 89.71 24.58 8957.70 9038.30 1588.43 1431.09N 365.2~r 5959089.34 653727.40 1476.97~345.68 1462.06 -0.00 Top HOT 11753.46 89.71 24.58 8959.70 9040.30 390.03 1785.77N 203.03W 5959447.24 653882.31 1797.28(~353.51 1797.25 0.00 CASING POINT OD = 4 I/2 in, ID = 3.95 in, Weight = 12.60 lb/ft. 11772.80 89.71 24.58 8959.80 9040.40 19.34 1803.36N 194.9~N' 5959464.99 653889.99 1813.87~353.83 1813.87 0.00 ETarg 2 - 11772.82 89.71 24.58 8959.80 9040.40 0.02 1803.37N 194.9~i/ 5959465.00 653890.00 1813.88(~353.83 1813.88 -0.51 0.00 Page Date: 518/96 Wellpath ID: D-3 lA Wpl Survey Tool 0.00 131.9 507.50 S 1234.05W 71.56 17.47 326.45 15.28 BPHM-PBD 0.00 131.9 422.11 S 1190;15W 74.96 18.00 324.91 15.79 BPHM-PBD 0.00 131.9 416.76 S 1187.4CW 75.17 18.03 324.82 15.82 BPHM-PBD 0.01 10.00 139.1 364.54S 11603c%V 77.41 18.31 323.88 16.19 BPHM-PBD 0.01 10.00 141.9 34236 S 1148.87W 78.35 18.41 323.51 16.35 BPHM-PBD 0.01 10.00 145.5 313.66 S 1133.97W 79.58 18.53 323.04 16.56 BPHM-PBD 0.01 10.00 151.9 260.77 S 1106.43W 81.91 18.69 322.18 16.96 BPHM-PBD 0.01 10.00 161.9 174.48 S 10613t:~ 85.79 18.81 320.87 17.63 BPI-IM-PBD 0.01 10.00 162.1 172.78 S 1060.48W 85.86 18.81 320.84 17.64 BPHM-PBD 0.00 -0.00 0.00 162.1 117.20 S 1031.47W 88.34 18.90 320.07 18.07 BPHM-PBD 9.82 -1.92 10.00 162.6 113.50 S I029.55W 88.50 18.90 320.03 18.10 BPHM-PBD 9.82 -1.90 10.00 169.8 49.07 $ 997.11W 9131 18.90 319.16 18.62 BPHM-PBD 0.00 0.00 0.00 0.00 169.8 13.38 S 1025.9'JW 0.00 0.00 0.00 0.00 BPI-IM-PBD 0.130 169.8 1380.57N 298.73W 156.14 19.07 308.54 32.40 BPHM-PBD 0.00 169.8 1731.13N 127.48W 172.49 19.18 307.19 36.15 BPHM-PBD 0.00 0.13 0.00 169.8 1803.36N 194.9SW 0.00 0.00 0.00 0.00 BPIIM-PBD 0.52 169.8 1748.53N I18.91~/~' 173.30 19.19 307.13 36.34 BPHM-PBD RECEIVED MAY 09 t996 Alaska 011 & Elas Cons. Commission Anchorage /- STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMI,~SION APPLICATION FOR SUNDRY APPROVAL 1. Type of Request: [] Abandon [] Suspend [] Plugging .,~ Time Extension ~ Perforate [] Alter Casing [] Repair Well [] Pull Tubing ~ Variance [] Other [] Change Approved Program C Operation Shutdown ~ Re-Enter Suspended Well ~ Stimulate Plugged Back for Sidetrack 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 (Not Final) (Not Final) 4. Location of well at surface 1945' NSL, 1068' WEL, SEC. 23, T11N, R13E At top of productive interval 132' SNL, 2660' WEL, SEC. 26, T11N, R13E At effective depth At total depth 1100' SNL, 3414' WEL, SEC. 26, T11N, R13E j5. Type of well: .,%,. Development Fq Exploratory ~ Stratigraphic ~ Service 6. Datum Elevation (DF or KB) KBE = 80.6 7. Unit or Property Name Prudhoe Bay Unit 8. Well Number D-31 9. Permit Number 96-71 10. APt Number 50-029-22672 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool 12. Present well condition summary Total depth: measured 10601 feet true vertical 9090 feet Effective depth: measured 10601 feet true vertical 9090 feet Casing Length Structural Conductor Surface Intermediate Production Liner 80' 3185' Plugs (measured) Junk (measured) Size Cemented 20" 260 sx Arctic Set (Approx.) 10-3/4" 924 sx PF 'C', 375 sx 'G', 260 sx PF 'E' MD TVD 110' 110' 3215' Perforation depth: measured N/A true vertical Tubing (size, grade, and measured depth) N/A Packers and SSSV (type and measured depth) N/A RECEIVED MAY 0 9 t996 ~aska 0il & Gas Cons. commission Anchorage 13. Attachments ,~ Description summary of proposal [] Detailed operations program [] BOP sketch 14. Estimated date for commencing operation May 9, 1996 16. If proposal was verbally approved Jack Hartz I \~9 05/07/96 approver ~\ .~.q,~(~va'- Date approved Name of Contact Engineer Name/Number: ~elli Bardwell, 564-4809 15. Status of well classifications as: [] Oil [] Gas [] Suspended Service Prepared By Name/Number Terrie Hubble, 564-4628 7. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed /,.,~ (~~ Ter~Jordan , ~ Title Senior Drilling Engineer ;~ / '- Commission Use Only Conditions of Approval: Notify Commission so representative may witness Plug integrity ~ .BOP Test __ Location clearance Mechanical Integrity Test Subsequent form required 10- Date ~'/~/~' ~ Approval No. Approved by order of the Commission Commissioner Date Form 10-403 Rev. 06/15/88 Submit In Triplicate · WELL PERMIT CHECKLIST COMPANY FIELD & POOL ~'~/(,¢:~ INIT CLASS ~)~--~Z,," PROGRAM: exp [] dev/~[ ,redril~ serv [] wellbore seg [] ann. disposal para req UNIT# ///.¢;:~_~'4::~ ON/OFF SHORE d2,~) ADMINISTRATION 1. Permit fee attached ....................... ~ N 2. Lease number appropriate ................... yr N 3. Unique well name and number ................. Y N 4. Well located in a defined pool ................. Y N 5. Well located proper distance from drlg unit boundary ...... Y N 6. Well located proper distance from other wells ........ ~ ~yY N 7. Sufficient acreage available in drilling unit .......... N 8. If deviated, is wellbore plat included ............... Y N 9. Operator only affected party .................. Y N 10. Operator has appropriate bond in force ............ '. Y N 11. Permit can be issued without conservation order ...... N 12. Permit can be issued without administrative approval .... N 13. Can permit be approved before 15-day wait ......... N REMARKS ENGINEERING APPR GEOLOGY 14. Conductor string provided ................... Y N'-~ 15. Surface casing protects ail known USDWs .......... Y N.,~ 16. CMT vol adequate to circulate on conductor & surf csg .... Y N 17. CMT vol adequate to tie-in long string to surf csg ....... Y N 18. CMT will cover all known productive hodzons ......... (~ N 19. Casing designs adequate for C, T, B & permafrost ...... 20. Adequate tankage or reserve pit ................ 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 ................ 24. Ddlling fluid program schematic & equip list adequate .... . Y,.~,N, 25. BOPEs adequate ....................... ~ N 26. BOPE press rating adequate; test to .,.,,~~ psig.~ 27. Choke manifold complies w/APl RP-53 (May 84) ....... 28. Work will occur without operation shutdown .......... .Y(.~ N 29. Is presence of H2S gas probable ............... ~Y)Y~__~N ? 30. Permit can be issued w/o hydrogen sulfide measures ..... Y NJ .~ ) Z~ 31. Data presented on potential overpressure zones ....... Y/,~ ,/(,~"~-1 4 32. Seismic analysis of shallow gas zones ............. ~_..N 33. seabed condition survey (if off-shore) ........... //. Y N 34. Contact name/phone for weekJ¥ progress repe~ ,....,,/.. Y N lexp~oratory onn/j GEOLOGY: ENGINEERING: COMMISSION: RPC/¢)04 BEW . DWJ~ · -~ JDH ~ JDN TA~ HOW/II'b - A:~FORMS'cheklist rev 4/96 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. .,,Tape~Sub~ile 2 is type: TAPE HEADER PRUDHOE BAY UNIT /MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 4 AK-MM- 960523 M. GABEL R. BORDES D-31A 500292267201 BP EXPLORATION (ALASKA) SPERRY-SUN DRILLING SERVICES 03-0CT-96 MWD RUN 5 M. HALL R. BORDES MWD RUN 6 HENNINGSEN R. BORDES MWD RUN 7 JOB NUMBER: 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 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: HENNINGSEN R. BORDES MWD RUN 8 M. GABEL R. BORDES 23 lin 13E 2035 2000 82.93 80.18 45.30 OCT 0 9 19 G Oii & Gas CoDs. Ancho[ jl OPEN HOLE CASING DRILLERS~ . BIT SIZE (IN) SIZE (IN) DEPTH , I slot ~ " MWD - GR/EWR4/CNP. ALL DEPTHS ARE MEASURED BIT DEPTHS. WELL D-31A SIDETRACKED FROM WELL D-31 AT 3625'. WELL D-31A IS REPRESENTED BY RUNS 1-8. RUNS 1-3 ARE DIRECTIONAL ONLY AND NO DATA IS PRESENTED. RUNS 4 AND 5 ARE DIRECTIONAL WITH GAMMA RAY (DGR/SGRC). RUN 6 IS DIRECTIONAL WITH GAMMA RAY (DGR/SGRC), COMPENSATED NEUTRON POROSITY (CNP/SPSF), AND ELECTROMAGNETIC WAVE 4-PHASE RESISTIVITY (EWR4). RUNS 7 AND 8 ARE DIRECTIONAL WITH GAMMA RAY (DGR/SGRC) AND ELECTROMAGNETIC WAVE 4-PHASE RESISTIVITY (EWR4). ALL GAMMA RAY DATA WAS ACQUIRED WITH DUAL GAMMA RAY, GEIGER MUELLER TYPE DETECTORS (DGR/SGRC). A MEASURED AFTER DRILLING (MAD) PASS WAS PERFORMED FROM 9741' TO 10841' AFTER LOGGING MWD RUN 7. WELL D-31A IS DRILLED TO TD AT 11849'. 13.500 10.750 3215.0 9.875 7.625 9789.0 6.750 11849.0 WELL D-31~ ~TA IS NOT DEPTH SHIFTED, WITH GRE(~ BERNASKI (BP) ON 20-AUG-96. ;R CONVERSATION 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 8468.0 11801.-0 RP 9280.0 11808.0 NPHI 9287.0 9753.0 $ BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) BASELINE DEPTH $ MERGED DATA SOURCE PBU TOOL CODE $ REMARKS: EQUIVALENT UNSHIFTED DEPTH BIT RUN NO MERGE TOP MERGE BASE 4 8548.0 9162.0 5 9162.0 9434.0 6 9434.0 9799.0 7 9799.0 10862.0 8 10862.0 11849.0 MERGED MAIN PASS. CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 10 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod GR MWD 68 1 AAPI RPX MWD 68 1 OHMM RPS MWD 68 1 OHMM RPM MWD 68 1 OHMM RPD MWD 68 1 OHMM NPHI MWD 68 1 PU-S NCNT MWD 68 1 CPS FCNT MWD 68 1 CPS 4 90 310 01 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 890 01 1 4 90 334 30 1 4 90 334 31 1 '.9 FET MWD 68 1 10 ROP MWD 68 1 * DATA RECORD (TYPE# Total Data Records: HR 4 FPHR 4 0) 1018 BYTES * 295 40 90 180 90 810 01 01 Tape File Start Depth = 11850.000000 Tape File End Depth = 8467.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 74438 datums Tape Subfile: 2 395 records... Minimum record length: 62 bytes Maximum record length: 1018 bytes Tape Subfile 3 is type: LiS FILE HEADER FILE NI/MBER: 2 EDITED MERGED MAD Depth shifted and clipped curves; all MAD runs merged using earliest passes. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE GR RP $ MERGED DATA SOURCE PBU TOOL CODE $ REMARKS: CN WN FN COUN STAT START DEPTH STOP DEPTH 9741.0 10813.0 9783.0 10821.0 MAD RUN NO. MAD PASS NO. MERGE TOP 7 1 9741.0 MERGE BASE 10813.0 MERGED MAD PASS. $ : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MAD 68 1 AAPI 4 2 RPX MAD 68 1 OHMM 4 3 RPS MAD 68 1 OHMM 4 4 RPM MAD 68 1 OHMM 4 5 RPD MAD 68 1 OHMM 4 6 FET MAD 68 1 HR 4 7 ROP MAD 68 1 FPHR 4 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 28 * DATA RECORD (TYPE# 0) 998 BYTES * Total Data Records: 137 Tape File Start Depth = 11845.000000 Tape File End Depth = 9735.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 33769 datums Tape Subfile: 3 161 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 4 is type: ~iS FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 8468.0 $ 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) MINIM UMANGLE: MAXIMUM ANGLE: STOP DEPTH 9134.0 17-MAY-96 ISC 2.11 CIM 3.94/EWR4 1.37/SP4 5.01 MEMORY 9162.0 8548.0 9162.0 0 1.6 50.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY $ TOOL NUMBER P0523CG6 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER' S CASING DEPTH (FT) : 9.875 3215.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PM: MUD CHLORIDES (PPM) : FLUID LOSS (C3) : RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CA/~E AT MT: LSND 10.20 53.0 9.5 9OO 4.0 .000 .000 .000 .000 .0 140.0 .0 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : .0 0 REMARKS: MWD RUN 4. CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 17 I Tape File Start Depth = 9170.000000 Tape File End Depth = 8467.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 78660 datums Tape Subfile: 4 80 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 5 is type: LIS FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 5 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 9130.0 $ 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) MINIM UMANGLE: MAXIMUM ANGLE: STOP DEPTH 9423.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY $ 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 TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: MWD RUN 5. 18-MAY-96 ISC 2.11 CIM 3.94/EWR4 1.37/SP4 5.01 MEMORY 9434.0 9162.0 9434.0 0 52.8 57.8 TOOL NUMBER P0523CG6 9.875 3215.0 LSND 10.20 47.0 10.0 1000 4.0 .000 .000 .000 .000 .0 153.0 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 8 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 Tape File Start Depth = 9440.000000 Tape File End Depth = 9125.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 35663 datums Tape Subfile: 5 71 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 6 is type: LIS FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 6 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 9399.0 9761.0 EWR4 9280.0 9746.0 CNP 9287.0 9753.0 $ 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 EWR4 ELECTROMAG. RESIS. 4 CNP COMPENSATED NEUTRON DGR DUAL GAMMA RAY $ 20-MAY- 96 ISC 2.11 CIM 3.94/EWR4 1.37/SP4 5.01 MEMORY 9799.0 9434.0 9799.0 0 62.0 87.8 TOOL NUMBER P0531CRNGP6 P0531CRNGP6 P0531CRNGP6 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT) : 9.875 3215.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: MUD CHLORIDES (PPM) : FLUID LOSS (C3) : RESISTIVITY (OPtMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MI/D CAKE AT MT: LSND 10.30 53.0 9.5 900 3.4 .910 .559 .650 1.400 103.0 172.0 103.0 103.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): SANDSTONE 2.65 .000 TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: MWD RUN 6. $ CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE : ALASKA .( * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 10 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 1 AAPI 4 2 RPX MWD 68 1 OHMM 4 3 RPS MWD 68 1 OHMM 4 4 RPM MWD 68 1 OHMM 4 5 RPD MWD 68 1 OHMM 4 6 NPHI MWD 68 1 PU-S 4 7 NCNT MWD 68 1 CPS 4 8 FCNT MWD 68 1 CPS 4 9 FET MWD 68 1 HR 4 10 ROP MWD 68 1 FPHR 4 4 90 310 01 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 890 01 1 4 90 334 30 1 4 90 334 31 1 4 90 180 01 1 4 90 810 01 1 40 * DATA RECORD (TYPE# 0) 1018 BYTES * Total Data Records: 47 Tape File Start Depth = 9805.000000 Tape File End Depth = 9275.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 90332 datums Tape Subfile: 6 114 records... Minimum record length: Maximum record length: 62 bytes 1018 bytes Tape Subfile 7 is type: LIS FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 7 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 9629.0 EWR4 9636.0 $ 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 10814.0 10821.0 23-MAY-96 ISC 2.11 CIM 3.94/EWR4 1.37/SP4 5.01 MEMORY 10862.0 9799.0 10862.0 0 87.8 92.5 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY EWR4 ELECTROMAG. RESIS. 4 $ TOOL NUMBER P0475SP4 P0475SP4 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT) : 6.750 9789.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): M%TD VISCOSITY (S) : MI/D PH: MUD CHLORIDES (PPM) : FLUID LOSS (C3) : RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MI/D CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): FLO-PRO 8.90 60.0 8.9 38000 5.7 .090 .539 .110 .130 .00 .000 88.0 150.0 68.0 68.0 TOOL STANDOFF (IN): EWR FREQUENCY (HZ) : .0 0 REMARKS: CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 1 AAPI 4 2 RPX MWD 68 1 OHMM 4 3 RPS MWD 68 1 OHMM 4 4 RPM MWD 68 1 OHMM 4 5 RPD MWD 68 1 OHMM 4 6 FET MWD 68 1 HR 4 7 ROP MWD 68 1 FPHR 4 4 90 310 01 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 180 01 1 4 90 810 01 1 28 * DATA RECORD (TYPE# 0) 998 BYTES * Total Data Records: 81 Tape File Start Depth = 10870.000000 Tape File End Depth = 9625.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 55592 datums Tape Subfile: 7 146 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 8 is type: LIS FILE HEADER FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 8 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10816.0 EWR4 10821.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT) : TOP L~G INTERVAL (FT) : BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 11801.0 11808.0 27-MAY-96 ISC 2.11 CIM 3.94/EWR4 1.37/SP4 5.01 MEMORY 11849.0 10862.0 11849.0 0 86.2 93.9 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY EWR4 ELECTROMAG.. RESIS. 4 $ TOOL NUMBER P0475SP4 P0475SP4 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER' S CASING DEPTH (FT) : 6.750 9789.0 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 TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: FLO- PRO 9.00 70.0 9.0 40000 4.5 .100 .050 .095 .150 85.0 163.0 71.0 71.0 NEUTRON' TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : .0 0 REMARKS: CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 1 AAPI 4 2 RPX MWD 68 1 OHMM 4 3 RPS MWD 68 1 OHMM 4 4 RPM MWD 68 1 OHMM 4 5 RPD MWD 68 1 OHMM 4 6 FET MWD 68 1 HR 4 7 ROP MWD 68 1 FPHR 4 4 90 310 01 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 120 46 1 4 90 180 01 1 4 90 810 01 1 28 * DATA RECORD (TYPE# 0) 998 BYTES * Total Data Records: 68 Tape File Start Depth = 11850.000000 Tape File End Depth = 10810.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 106981 datums Tape Subfile: 8 133 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 9 is type: LiS FILE HEADER FILE NI/MBER: 8 RAW MAD Curves and log header data for each pass of each run in separate files. MAD RUN NUMBER: 7 MAD PASS NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 9741.0 EWR4 9783.0 $ 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 10813.0 10821.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY EWR4 ELECTROMAG. RESIS. 4 $ 23-MAY-96 ISC 2.11 CIM 3.94/EWR4 1.37/SP4 5.01 MEMORY 10862.0 9741.0 10841.0 0 87.8 92.5 TOOL NUMBER P0475SP4 P0475SP4 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER' S CASING DEPTH (FT) : 6.750 9789.0 BOREHOLE COND I T IONS 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 TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: FLO- PRO 8.90 60.0 8.9 38000 5.7 .090 .539 .110 .130 88.0 150.0 68.0 68.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN) : .0 FREQUENCY (HZ) : 0 REMARKS: MAD PASS, LOGGED AFTER MWD RUN 7. $ CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : D-31A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MAD 68 1 AAPI 4 2 RPX MAD 68 1 OHMM 4 3 RPS MAD 68 1 OHMM 4 4 RPM MAD 68 1 OHMM 4 5 RPD MAD 68 1 OHMM 4 6 FET MAD 68 1 HR 4 7 ROP MAD 68 1 FPHR 4 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 4 95 995 99 1 28 * DATA RECORD (TYPE# 0) 998 BYTES * Total Data Records: 137 Tape File Start Depth = 11845.000000 Tape File End Depth = 9735.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 89361 datums Tape Subfile: 9 203 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 10 is type: bis 96/10/ 3 01 **** REEL TRAILER **** 96/10/ 3 01 Tape Subfile: 10 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Thu 3 OCT 96 ll:10a Elapsed execution time = 3.90 seconds. SYSTEM RETURN CODE = 0
