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196-105
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. I~ ' 10~-'" File 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: Beverly~incent Nathan Lowell Date: '~ '- I CO/'' [] TO RE-SCAN Notes: Re-Scanned by: Beverly Dianna Vincent Nathan Lowell Date: ~si Schlumberger Alaska Data & Consulting Services 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATI'N: Beth 11/11/03 NO. 3039 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Lisa Weepie 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Well Job # Log Description Date Blueline Color Prints CD D.S. 11-30 ~'1 10559806 USIT 06/23/03 2 G-12A 10564480 SCMT 06/08103 2 F-26A , ~- )<:~¢:' 10568459 SCMT 06/07103 2 D.S. 15-23A ~--~" / '~[/ 10559821 SCMT 07/26103 2 · '. PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: , BP Exploration (Alaska) Inc. Petrotectnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 RECEIVE[::.',': Date Delivered: NOV 24 ~.00~ , Anchom~ Schlumberger GeoQuest 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATTN: Beth STATE OF ALASKA (' ALAS OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: [] Oil [] Gas [] Plugged [] Abandoned [] Suspended [] WAG lb. Well Class: 20AAC 25.105 20AAC 25.~0 [] Development [] Exploratory [] GINJ [] WlNJ [] WDSPL No. of Completions Zero Other [] Stratigraphic [] Service '2. Operator Name: 5. Date Comp., Susp., or Aband. 12. Permit Number BP Exploration (Alaska) Inc. 9/11/2003 196-105 303-228 '3. Address: 6. Date Spudded 13. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 06/26/1996 50- 029-20597-01-00 4a. Location of Well (Governmental Section): 7. Date T.D. Reached 14. Well Number Surface: 07/07/1996 PBU G-12A 2334' SNL, 2367' WEL, SEC. 12, T11N, R13E, UM 8. Elevation in feet (indicate KB, DF, etc.) 15. Field and Pool Top of Productive Horizon: KBE = 65.72' Prudhoe Bay Field / Prudhoe Bay 1570' SNL, 1029' WEL, SEC. 11, T11N, R13E, UM Pool Total Depth: ~ 9. Plug Back Depth (MD+TVD) 2480' SNL, 981' WEL, SEC. 11, T11N, R13E, UM 10049 + 8705 Ft '4D. Location of Well (State Base Plane Coordinates): 10. Total Depth (MD+TVD) 16. Lease Designation and Serial No. Surface: x- 657854 y- 5969307 Zone- ASP4 11715 + 9023 Ft ADL028280 TPh x- 653897 Y- 5969989 Zone- ASP4 11. Depth where SSSV set 17. Land Use Permit: Total Depth: x- 653965 Y- 5969080 Zone- ASP4 N/A MD 19. Water depth, if offshore 20. Thickness of Permafrost 18. Directional Survey [] Yes [] No N/A MSL 1900' (Approx.) 21. Logs Run: GR 22. CASING, LINER AND CEMENTING RECORD '":!i:::::'i: :C:AS'IN'G, ' ' ........ ........ ' ,:,1 :, ;: :'1": =' ':2:! :::,'.,;::',i:;SETTiNG:::DEPTH:!,:,":!::, ',; i'::HOEE,!!.`: i: SIZE WT. PER FT'. GRADE ' TOP':' BOTTOM SIZE' CEMENTING RECORD' AMOUNT PULLED 20" x 30" Insulated Conductor Surface 110' 36" 8 cu )/ds Concrete 13-3/8" 72# L-80 Surface 2672' 17-1/2" 3441 cu fi AS II, 186 cu fi Top Job 9-5/8" 47# L-80 Surface 9721' 12-1/4" 1305 cu fi Class 'G', 130 cuft AS II 7" 29# L-80 9212' 10745' 8-1/2" 360 cuft Class 'G' 2-7/8" 6.16# L-80 9796' 11715' 3-3/4" 94 cu ft Class 'G' 23. ,.,Perforat,io.ns open to Pro,d,uctio,n (M.D, + TVD of Top and ,:~':': '.::;:~..,:.:; :i: :: i.~;!'::;',,~:~! ,. !::.:.i.:.. :!;i:.,::;i.,::!:.~:..~.:?i::!'::,:,~.!!:.: ;.,'::'~i i' :..: :;:...::: i.:' ':..~ ': '.. uottom ~merval, Size ana Number; iT none, state "none"): 24,..,....,,!...,.: i.:!..::.....,.,.. ........ ,..!~:..,~:.:.. '.,~::TUSING.:RECORn'. '...', SA-.' D: .~'~ S~ ' ,.".t."~ P..,:.<~. ~ S~.' C' ':; None 7,, 26#, L-80 9169' 9169' MD TVD MD TVD 4-1/2", 12.6#, L-80 9169'- 9279' 25. ' ..' :ACID, FRACTURE, CEMENT SQUEEZE, ETC.' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 10049' Set CIBP 9796' Top of Milled 2-7/8" CTD Liner 9786' Set Whipstock 9786' Set 5 Bbl Cement Plug 26. 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-DEL CHOKE SIZE I GAS-OIL RATI© TEST PERIOD ~ F~iow Tubing Casing Pressure' CALCULATED ~. OIL-BBL GAS-MCF WATER-DEL OIL GRAVITY-APl (CORR) Press. 24-HOUR RATE-"~ 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (l~t~a{~,,~.,~i~t~'~.~, if~ecessary). Submit core chips; if none, state "none". top Form 10-407 Revised 2/2003 CONTINUED ON REVERSE SIDE t 29. 28. GEOLOGIC MARKERS FORMATION TESTS Include and briefly summarize test results. List intervals tested, NAME MD TVD and attach detailed supporting data as necessary. If no tests were conducted, state "None". Sag River 9770' 8482' None Shublik 9819' 8521' Sadlerochit 9928' 8608' Ataska 0il a Gas Cons.Comm~ssm~,~' ' , Anchnra~ 30, List'of Attachments: Summary of Pre-Ri9 Work and Daily Drillin9 Repods 31. I hereby ce~ify that the foregoin9 is true and correct to the best of my knowledge. Signed Terrie Hubble , Title Technical Assistant Date PBU G-12A 196-105 303-228 Prepa~d By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No. / Approval No. Orilling Engineer: Ted Stagg, 564-4694 GENERAL: ITEM la: ITEM 4b: ITEM 8: ITEM 13: ITEM 20: ITEM 22: ITEM 23: ITEM 26: ITEM 27: INSTRUCTIONS This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. 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. TPI (Top of Producing interval). The Kelly Bushing elevation in feet above mean Iow Iow water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. The APl number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). True vertical thickness. Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. 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). Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). If no cores taken, indicate "None". ITEM 29: List all test information. If none, state "None". Form 10-407 Revised 2/2003 ORiGiNAL Well: G-12B Accept: 09/13/03 Field: Prudhoe Bay Unit Spud: 09/20/03 APl: 50-029-20597-01 Release: 09/30/03 Permit: 203-141 Rig: Nordic #1 Date PRE-RIG WORK 09/11/03 SET 2-7/8" HES CIBP W/CENTER ELEMENT @ 10050' AND STRINGSHOT/CHEMICAL CUT 2-7/8" CTD LINER @ 10000'. SEVERING HEAD HAD INDICATION OF GOOD CUT. PLUG WAS PRESSURE TESTED TO 1000 PSI PRIOR TO CUTTING TUBING. NO PROBLEMS RIH OR POOH. TAGGED UP ON PLUG @ 10049' MD. 09/12/03 RIH WITH BAKER 4" G SPEAR, W/5K RUPTURE DISC--W/EXT--W/SEAL SUB. (OAL=32.96'). SAT DOWN AT 9266' CTMD. UNABLE LATCH INTO FN, ATTEMPT TO JET INTO FN SETTING 10K DOWN WEIGHT, STILL UNABLE TO LATCH, POOH. DROPPED THE SEAL EXTENSION SUB OFF & RIH WITH SAME. LATCH FN AND MAKE 10 JAR LICKS AND POPPED OFF ON LAST UP LICK. RE LATCHED FISH, SET DOWN, PUMPED OFF AND POOH. LOST TWO KEYS FROM G SPEAR. MU 2.125" BHA W/2.25" NZL FOR DRIFT RUN. MU 2.25" NZL AND DRIFT TO 9900' CTMD POOH. LAY DOWN TOOLS, LUBRICATOR AND BOP'S, MAST AND MOVE UNIT AND STANDBY FOR E-LINE WORK. STRING SHOT 2-7/8" LINER FROM 9762' - 9774°. CORRELATED TO SCMT LOG 6/8/03. 09/13/03 CHEMICAL CUT 2-7/8" LINER @ 9772'. CORRELATED TO SCMT LOG 6/8/03. THIS IS THE SECOND CUT MADE IN THE 2-7/8" LINER (THE PREVIOUS CUT WAS @ 10,000'). CTU COULD NOT PULL THE LINER AFTER THE PREVIOUS CUT. LINER WAS CLEANED BY FIRING @ 12' 1 STRAND STRING SHOT PRIOR TO CUTTING. CTU STANDING BY TO PULL LINER. RIH WITH 4" G SPEAR. LATCH FISH WHILE PUMPING. MADE ONE JAR LICK W/10K OVER, PULLED 37K (15K) OVER STRING WT AND CAME FREE. PUH TO 9240' CTMD W22.5K (4K) OVER INITIAL STRING WEIGHT. SET BACK DOWN AND PICKED UP AGAIN W/4K OVER INITIAL STRING WEIGHT. SET BACK DOWN, PUMPED OFF FISH AND HAD INITIAL STRING WEIGHT OF 18.5K. POOH TO 2000' AND FP TO SURFACE. RMDO. BP EXPLORATION Page 1 .. Operations Summary Report . Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALIST^ Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 i~. Date'::~. ::: :From~To: :Hours:I 'Task ~ Code. Np,I' Phase ' DescriPtionofOperations . , 1/1/2003 0.00 POST 9/13/2003 09:00 - 13:15 4.25 MOB N PRE RREL from K-08a @ 0900 hrs. Prep to move off well and fix problems with moving system 13:15 - 13:35 0.33 MOB :~ PRE Safety mtg re: move to G-12 13:35 - 16:55 3.33 MOB ~ PRE Move rig off K Pad and onto K Pad road. Turn onto G Pad access before twin towers. Cross mats and arrive on G Pad 16:55 - 22:45 5.83 MOB N PRE Set rig down between pads and place rig on Standby. Wellhouse was just removed. WO FL to be drpressured and removed. Spot camp. DSM set flowback tank 22:45 - 23:00 0.25 MOB P PRE Safety mtg re: move over well 23:00 - 23:30 0.50 MOB I P PRE Move DS/N #1 over tree and set down 23:30 - 00:00 0.50 BOPSUF;P PRE NU BOPE 9/14/2003 00:00 - 02:00 2.00 BOPSUF;P PRE NU BOPE 02:00 - 07:30 5.50 BOPSUF:P PRE Test BOPE. Witness waived by AOGCC 07:30 - 08:00 0.50 CLEAN P DECOMP Fill pits, prep injector 08:00 - 08:30 0.50 CLEAN P DECOMP Cut off CTC. Install BOT CTC. PT 30k 08:30- 10:30 2.00 CLEAN P DECOMP Swap out lubricator. Install nozzle assy. Fill CT w/2% KCI. Check well for pressure and none. IA 200, OA -7 10:30- 10:45 0.25 CLEAN P DECOMP Pre Spud mtg 10:45- 11:40 0.92 CLEAN P DECOMP MU fishing BHA (4" GS spear) 11:40- 13:10 1.50 CLEAN P DECOMP RIHw/BHA#1 taking wellbore fluids to cutting box 13:10- 13:25 0.25 CLEAN P DECOMP 9200' 32.6k Fin circ out MeOH 1.5/640. RIH and tag deployment sleeve at 9254' CTD. Latch fish 13:25 - 14:55 1.50 CLEAN P DECOMP ;POOH filling from BS 37k 30'/min until clear of tailpipe PV-I' .217. POOH w/2-7/8" liner 14:55 - 15:30 0.58 CLEAN P , DECOMP Tag up, PVT 194, IA 270. Hole did not take proper fill. Monitor 30 rain while hold safety mtg and get tools ready-wellbore stable, hole full 15:30- 16:00 0.50 PULL P DECOMP Stand back inj. LD fishing BHA. LD deployment sub. RU to LD liner. MI WL unit 16:00 - 17:00 1.00 PULL P DECOMP LD 17 jts and one 14' cut section of 2-7/8" 6.4~ L-80 FL4S. Clean chemical cut. Connections looked good. Had external pitting on most joints. NORM reading zero. Could see cement on the Iowside on the first 48' above the cut after pipe had dried out Kick while tripping drill 17:00 - 17:15 0.25 CLEAN P DECOMP Safety mtg re: RU slickline tools 17:15- 17:45 0.50 CLEAN P DECOMP RU slicklinetools 17:45- 20:00 2.25 CLEAN P DECOMP Run 3.625" LIB and decentralizer. RIH down to top of fish. No TEL in the tool string, so going off of SL depths. Mushy tag 3 times at 9764'. POOH. 20:00 - 21:30 1.50 CLEAN P DECOMP Tag up, lay out 3.625" LIB. No marks on LIB. Slight marks on edge of LIB almost look like it has been pinched. Get materials to run 2.5" LIB and decentralizer. 21:30 - 22:30 1.00 CLEAN P DECOMP RIH with 2.5" LIB, 2.6" decentralizer, and extra weight bar. No TEL in tool string, depths are SLM. Hung up at 9764', then fell thru down 30' deeper, to 9791'. During set down they lost span jar action for a moment. 22:30 - 22:50 0.33 CLEAN P DECOMP Inspect LIB. Found 2-7/8" liner top impression on the Iow side of the hole. Looks as if the liner is as expected, and on the Iow side. The early set down at 9764' may indicate some contaminated cement up above the top of fish. This would not Printed: 10/6/2003 1:,51:08 PM BP EXPLORATION Page 2 ~ · : Operations Summary Report. Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALIST^ Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 :Date;':' .~From:',To::H°urs: :Task' Code NPT ~.P'hase '.' · :DesCription of Operations 9/14/2003 22:30 - 22:50 0.33 CLEAN ~ DECOMP be an entirely bad thing as it may act as an entry guide to the top of the fish. 22:50- 00:00 1.17 CLEAN N WAIT DECOMP Release SL unit. Discussion with Baker fishing hand, BP Co Rep, and BP town concludes that the best option forward for a Iowside fish is the 3.0" OD piloted mill. Wait on Baker fishing to complete fabricating mill. 9/15/2003 00:00 - 06:00 6.00 CLEAN N WAIT DECOMP Continuing to wait on mill fabrication. 06:00- 08:00 2.00 CLEAN N DECOMP Mills and UR here. Cuss 'n discuss 08:00 - 08:55 0.92 CLEAN P DECOMP MU milling assy #1 (3.0" mill with pilot, 2-7/8 Navidrill motor) IA 265 08:55 - 10:45 1.83 CLEAN P DECOMP RIH w/BHA #3 circ'ing at min rate and filled the CT with the extra fluid from prior run... 10:45 - 11:15 0.50 CLEAN P DECOMP 9300' 34k Start pump 2.5/2070 RIH 15-20'/min 23k in 7" liner. Begin 100k used mud 11:15 - 11:30 0.25 CLEAN P DECOMP Tag TOL at 9808' CTD with first mud at mill and stall. PUH 33.4k. Ease back down to first motor work 11:30 - 12:30 1.00 CLEAN P DECOMP First motor work at 9808.0' CTD. Corr to 9772.0' and flag. 2.5/2160 Begin milling 2-7/8" liner 12:30- 13:00 0.50 CLEAN P DECOMP 9773.0' 2.5/2290 w/70-150~ diff 13:00 - 14:30 1.50 CLEAN N FLUD DECOMP 9773.5' Got a fair amount of btms up gas. PUH 32k and red rate to 1.5 bpm while circ out gas and wait on truck with remainder of mud-dispatcher trying to save us money sent mud in small trucks.., red rate to 0.5/1190 after gas out and got mud back to surface, but not enough volume to circ 14:30- 16:00 1.50 CLEAN P DECOMP 9773.5' 2.5/2430 Resume milling. Mill to 9775.4', but acting too smooth (no stalls) 16:00- 16:25 0.42 CLEAN P DECOMP 9775.4' Chk FS 2.5/2430 RIH and resume milling and got motor work at 9774.9'. Get back to btm and resume milling w/ 200~ diff. Mill to 9775.7' IA 408 PVT 286 16:25 - 17:45 1.33 CLEAN P DECOMP PUH 30.5k. POOH to check wear pattern on mill 17:45 - 18:45 1.00 CLEAN P DECOMP LD BHA. Check mill and JB. Found a few curly pieces of metal in the junk basket along with cement. Examined the mill and found no wear on the pilot, and wear in a circular 2-7/8" pattern on the mill face, with several chipped cutters. This suggests that the mill has been operating properly on the 2-7/8" liner, and doing what we wanted it to. If we were along side the fish there should be wear on the pilot. Rig up the same mill, rooter BHA back up to resume milling. 18:45 - 19:30 0.75 CLEAN N SFAL DECOMP While stabbing injector on tree, a hydraulic hose was found leaking. It will need to be repaired prior to RIH. 19:30- 19:50 0.33 CLEAN N SFAL DECOMP Safety meeting to discuss nature of the hose failure, the repair needed, and possible hazards and mitigation. Issues discussed were working at heights, proper fall protection, using ladders to stand on, slips from hydraulic fluid, spills to pad from leaking hose, trapped pressure, Iockout/tagout on controls to power pack. 19:50 - 22:30 2.67 CLEAN N SFAL DECOMP Proceed with rapairs to injector. 22:30 - 00:00 1.50 CLEAN P DECOMP RIH with BHA #3 to resume milling. 3.0" piloted mill, 2.875" motor, PH6, jars, Junk baskets, MHA. 9/16/2003 00:00 - 01:00 1.00 CLEAN DECOMP Continue RIH with BHA #3. Pump 30 bbls of MI cat hair super sweep at 1/4 #/BBL. Pumping thru the cement line to bypass the filters. Stage it to be at the mill when the BHA gets to TD. 01:00 - 02:00 1.00 CLEAN DECOMP Weight check at 9700'=40 klbs. Kick on pumps. Free Printed: 1016/2003 1:51:08 PM . BP EXPLORATION Page 3~1 OpemtionsSummary Report · ,. Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALISTA Rig Release: 9/30/2003 Rig Name: NORDIC I Rig Number: N1 iilDate:i::: :From,T° Hours: :.~TaSk:~Code :iNPT Phase : Description OfOperatio:ns , · : · 9/16/2003 01:00 - 02:00 1.00 CLEAN DECOMP spin=2600 psi at 2.6 bpm. Tag top of fish. Make -26' correction, set depth to last tag of 9775.7'. Ease into milling. No stall. 2.55/2.55/2800 psi. Asked mud man to raise system viscosity. Want to bring it up to the max we can get for carrying ability while keeping pump pressure at approximately 3000 psi. Did not see any unusual pressure charecter when pumping cat hair out of mill. Able to mill at 2.0 fph. 02:00 - 03:00 1.00 CLEAN DECOMP 9779.5', Milling ahead. Making surprisingly good progress? Milling faster than I would have expected on steel. 2.55/2.63/2830 psi. Had I stall in last hour. 03:00 - 03:20 0.33 CLEAN DECOMP 9787.7'. Hard to believe we milled 8.2' in the past hour. Still waiting for bottoms up from the first cat hair sweep. We will send another sweep after seeing the first one. 03:20 - 03:40 0.33 CLEAN DECOMP 9788', First cathair sweep back to surface. No large chunks of metal in sweep. There are metal fines on the ditch magnets. Total weight of recovered metal from magnets so far is about 5 lbs. Note that this sweep went thru the bit just as this run got back to bottom. Only 3.7' of liner had been milled up at that point. 03:40 - 04:00 0.33 CLEAN DECOMP 9790.0', Pumping another 30 bbl cat hair sweep. 104:00 - 04:50 0.83 CLEAN DECOMP 9791.1', 2.57/2.62/3186 We have made 3.4' in the past hour. ROP has slowed down. 04:50 - 05:00 0.17 CLEAN DECOMP 9793.2', Getting fine steel fuzz back on the ditch magnets at about the same rate as during window milling. Metal particle size appears to be quite small. Only a few curley-ques seen on shaker. Still getting lots of cat hair back. First sweep appears to have strung out quite a bit. Cat hair coming off of the shakers is reactive when placed near a magnet. Captured a sample of cat hair from the shaker and looked at it under a microscope, and are getting some pieces of fine iron, some pipe scale, and formation sand? Where the sand is coming from I can't say. ;05:00 - 05:45 0.75 CLEAN DECOMP 9794.0, 2.9' in last hour. 2.58/2.61/3100 psi. Pit vo1=283 bbls. lAP=430 psi, OAP=240 psi. 05:45 - 05:50 0.08 CLEAN DECOMP Stall at 9797', PU above 9772' clean with no hang ups. RIH smooth 05:50- 06:00 0.17 CLEAN DECOMP Continue milling. 06:00 - 07:00 1.00 CLEAN DECOMP 9797.1', 3.1' in last hour. 2.58/2.66/3113 psi. Pit vo1=281 bbls. 07:00 - 07:50 0.83 CLEAN DECOMP 9800.0' and stacking. 30' wiper 2.6/2720, 35k, clean. RIH and get motor work at 9798.6' Mill back down and get to 9799.3', but still stacking 07:50 - 08:30 0.67 CLEAN DECOMP Start 30 bbl 1/4~/bbl Supersweep pill mixed in mud. Recip while pill exits mill. See flag at 9773' (1' off) 08:30 - 08:50 0.33 CLEAN DECOMP Ease back in hole 2.5/2680 and first wt loss and motor work at 9798.0'. Resume milling w/200~ diff, but still stacking and no progress. Appears mill is worn 08:50 - 09:05 0.25 CLEAN DECOMP POH. Recheck flag at 9773.0'. Assume TD is 9797.0' which gives enough room for a 17.5' Gen 2 WS with bottom at 9794', top at 9776.5', TOW at 9781', BOW at 9787.5'-a Sag River exit. 7" collar is at 9779'. 09:05- 09:15 0.17 CLEAN N STUC DECOMP Stuck BHA at 9338' both ways. Assume junk baskets hung up in milled out XN nipple. Work in increments and after 3 jar Printed: 10/6/2003 1:51:08 PM BP EXPLORATION page 4 ~ 'operations Summary Report, · · ., Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALISTA Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 · · ~Date ..:~ From,TO· Hours ·TaSk. COde NPT:: phase I ~Desc'riPtionofOPerations' · 9/16/2003 09:05 - 09:15 0.17 CLEAN N STUC DECOMP licks came free and pull to 9260'. Then, injector tripped out... 09:15- 09:50 0.58 CLEAN N SFAL DECOMP Injector kept tripping out and stopping upward progress. Use override and pull to safety at 9100'. Reboot PC, PUH for a few feet and still trips out. Repeat 3 times. Replace wiring to weight cell 09:50 - 11:05 1.25 CLEAN P DECOMP Resume POOH. Recovered pill and had more metal than previous pills and more curlies 11:05 - 12:15 1.17 CLEAN P DECOMP LD milling BHA. Mill was in gauge/metal munchers were 1/2 worn. Junk baskets were both full of curlies and a couple of 1" x 2" thin wafers. MU nozzle assy. Will clean out junk with higher density sweeps before underreaming 12:15-14:05 1.83 CLEAN P :DECOMP RIH w/ BHA ~4 (3.0" nozzle w/ l" hole) 14:05 - 14:10 0.08 CLEAN P DECOMP Corr to flag at 9673.8' and reset to 9758.7' PUH 42k at min rate. RIH and tag at min rate at 9798.0', clean. PUH 42k, clean. Start 30 bbl 1/2# Supersweep pill 2.1/2000 14:10 - 14:50 0.67 CLEAN ~ DECOMP Circ pill to nozzle while POOH into tailpipe to 9250' and clean 2.5/2600, RBIH 14:50 - 16:00 1.17 CLEAN :) DECOMP 1/2 #/BBL cathair sweep out nozzle. Pull up to 9750, park coil, kick on both pumps to pump at maximum rate. Pumping at 4.35/4.1/4135 psi. Lets see what this brings up. 16:00 - 16:30 0.50 CLEAN ~ DECOMP 2nd 1/2# cat hair sweep back to surface. It contains significant amounts of entrained curley-ques. No potato chip sized ~ieces, but lots of 1/4" by 2" c-q's. The metal concentration was high as the start of the sweep arrived back at surface, and tapered off to virtually none at the end of the sweep. Mix another cat hair sweep. This time in viscosified mud to at least 150klsrv plus mud with 3/4 #/bbl of cat hair. 16:30 - 18:00 1.50 CLEAN 'P DECOMP Pump 30 bbls of 3/4# cat hair sweep with 150+ klsrv mud. This ~s very thick, walk on water, jesus mud. Pump it out the nozzle with the nozzle at TD. Chase the sweep up hole to 9750', then 3ark coil with rate at maximum of. 18:00 - 18:30 0.50 CLEAN P DECOMP I Recovering 3/4 #/bbl sweep. Appears to be considerably less i metal concentration in this sweep. Virtually no big pieces of ~metal, and very hard to detect any metal by visual examination. 18:30 - 21:00 2.50 CLEAN P DECOMP RIH while circ at 4.4 bpm, tag bottom and POH while circ at 4.2 - 4.4 bpm, 3800 psi. 21:00 - 21:30 0.501 CLEAN P DECOMP Tag up at surface, did not see any additional metal when close to surface. L/O BHA. M/U jetting BHA to clean BOP stack. 21:30 - 22:00 0.50 CLEAN P DECOMP Circ. at 4.5 bpm and jet across BOP stack several times until clean. L/O jetting nozzle. 22:00 - 22:30 0.50 CLEAN P DECOMP M/U Baker 3.625" guide mill and DB Underreamerwith 6.101" blades. M/U 2-7/8" extreme motor, circ sub, disconnect, Bowen Up Jars, 2 Jts 2-3/8" PH6 tubing and CTC. Total length = 92.81 ft. 22:30 - 00:00 1.50 CLEAN P DECOMP RIH with underreaming BHA to clean out cement to top of 2-7/8" liner. 9/17/2003 00:00- 00:15 0.25 CLEAN P DECOMP RIH with BKR Underreaming BHA. 6.101" blade dia. RIH to 9400 ft. 00:15 - 01:00 0.75 CLEAN P DECOMP Circ. at 2.7 bpm at 2600 psi, Open UR blades at 9400 ft, saw pressure shift when blades open. RIH at 8 FPM to 9750 ft with no motor work. RIH to flag at 2 FPM. Printed: 1016/2003 1:51:08 PM ., Bp EXPLORATION Page 5 ~ · ':. . ' . Operations Summary Report ..... Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALISTA Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 , ': i::Date :i :From,To HourS:ii:TaSkl Code liN:PT:; .phase~ , 'DescriPtion:of OPerations,,, , 9/17/2003 01:00 - 01:50 0.83 CLEAN P DECOMP Correct to flag at 9767'. [ -33 ff CTD]. UR down at 1.0 FPM No motor work. First small motor work at 9782 ff. UR down at 0.6 FPM, 2.7 bpm, 2600 psi. Easy cement milling. 01:50 - 03:15 1.42 CLEAN P DECOMP UR firm cement starting at 9788 ft. UR down at 0.5 fpm, 2.7 bpm, 2700 psi, 100 psi motor work. Had 4 stalls at 9794-9795 ff. UR down slow to 9796 ff. Pick up to 9730 ff. 03:15 - 05:00 1.75 CLEAN ~ DECOMP Underream down to 9796 ff. again. Clean hole, no motorwork, Stall at 9796 ft. Circ. 30 BBL very high risc FIoPro pill. UR slow down to 9798 ft. Pick up to 9700 ff and ream down at 5 FP, clean, no motor work. Stall at 9798 ft again at top of 2-7~8" liner. 05:00 - 06:00 1.00 CLEAN ~ DECOMP Circ. 2% KCL water with 1/2 PPB Biozan for logging and milling window. Drop 3~4" steel ball to open circ sub. Displace with Biozan water at 2.6 bpm, 1900 psi. Ball on seat at 54 bbls. sheared circ sup open at 2800 psi. 06:00 - 08:25 2.42 CLEAN = DECOMP POH while circ. at 3.6 bpm, 2150 psi. 08:25 - 09:00 0.58 CLEAN = DECOMP Tag up at surface, stand back injector, lay down under reamer BHA. All recovered ok. Recoverd 3 arms on underreamer. 09:00 - 10:15 1.25 CLEAN N WAIT DECOMP Wait on HES crew to changeout. 10:15 - 10:35 0.33 CLEAN P DECOMP Safety meeting priorto rigging up HES. 10:35 - 12:15 1.67 CLEAN N WAIT DECOMP HES does not have the necessary eq. Call for packoff from Deadhorse shop. 12:15- 12:45 0.50 CLEAN P DECOMP Rig up HES and PDS MFC. 12:45 - 15:45 3.00 EVAL P DECOMP RIH with MFC tool. Set down in 7" PBR seal. Can't get down. Tagging up at 9110' SLM. POOH to lay out MFC and make a drift run to TD. 15:45 - 16:30 0.75 EVAL P DECOMP Lay down MFC, PU pump bailer, centralizer, spang jars. 16:30 - 17:45 1.25 CLEAN P DECOMP Run drift run with 2-112" pump bailer. Could not get down to bottom. Tagging up at 9110' SLM, same depth as last run. Nearest jewelry at 9169' 17:45 - 18:10 0.42 CLEAN P DECOMP Tag up at surface with pump bailer. Dump it out and find approximately 5 lbs of steel cuttings in the pump bailer. (About 2" in the bottom of a 5 gallon bucket). The cutting size is mostly the curly-ques we were looking for while milling. The partical size is in the moderate to small range. Nothing huge, nothing fine. Mostly from 1/4" -1-1/2", down to 1/32xl/2". 18:10-20:30 2.33 CLEAN P DECOMP Run#2. RU 3.0" X10 ff pump bailer with ball check for l run while HES brings a 3.5" pump bailer from Deadhorse. RIH, work pump bailer. POH. Good recovery of small / medium sized metal. [ 10 lbs ]. 20:30- 22:00 1.50 CLEAN N SFAL DECOMP RIH. Depth encoder failed at 8000 ft. POH and repair. 22:00 - 00:00 2.00 CLEAN P DECOMP Run #3. RIH with 3.5"X 10 ft pump bailer with flapper check. Work on bottom. POH. Good recovery again. [ 15 lbs ]. Total of 30lbs from 3 bailer runs. Also 10 lbs from earlier junk baskets. 9/18/2003 00:00 - 01:30 1.50 CLEAN P DECOMP Run #4. RIH with 3.5" pump bailer. Work on bottom. POH. Very good recovery [25 lbs], fine / medium metal cuttings. Weighed with scale, total metal from 4 runs = 55 lbs, about 3 gal. 01:30 - 03:00 1.50 CLEAN P DECOMP Run #5. RIH with 3" pump bailer. Work on bottom. POH. Printed: 1016/2003 1:51:08 PM BP EXPLORATION Page 6 ~ · · Operations Summary Report Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALIST^ Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 · '' Date ::: i ~From,'To ~: Hours: TaSk Code 'NPT:: Phase Description of:Operations · 9/18/2003 01:30 - 03:00 1.50 CLEAN P DECOMP Recover 20 lbs of metal. [75 total from 5 runs]. 03:00 - 04:00 1.00 CLEAN P DECOMP Run #6. RIH with 3.5" pump bailer. Work on bottom. POH. Recovered [7 lbs], fine / medium metal cuttings. 04:00 - 05:00 1.00 CLEAN P DECOMP Run #7. RIH with 3.5" pump bailer. Work on bottom. POH. Recovered [8 lbs], fine / medium metal cuttings. Total of 90 lbs recovered with pump bailer runs so fare. Also total of 10 lbs recovered from magnets. 05:00 - 06:00 1.00 CLEAN P DECOMP Run #8. RIH with 3" pump bailer. Work on bottom at 9116' [ started cleanout at 9102' ], POH. Recovered 12 lbs metal. Total of 102 lbs from pump bailer runs. 06:00 - 07:15 1.25 CLEAN P DECOMP Run #9. RIH with 3" pump bailer. Work on bottom at 9117.5'. POOH. 07:15 - 08:15 1.00 CLEAN P DECOMP Tag up at surface with Bailer run #9. Dump 11 lbs of medium sized cuttings. Total recovery now at 113 lbs from the bailer runs. HES needs to cut 150 of wire and redress pump bailer. 08:15 - 09:40 1.42, CLEAN P DECOMP Run Bailer run #10 with 3" bailer again. Work on bottom, POOH. Recovered 8 lbs from the bailer. Most medium size cuttings, 2 chunks 1/2" x 1.5". Total 120 # so far. 09:40 - 11:00 1.33 CLEAN P DECOMP Run #11, 3" bailer. Work on bottom at 9116', broke thru. Made it down to 9788', SLM. POOH. Recovered 4 bls from the bailer. Same material as previous runs. Total 124 lbs so far. 11:00 - 12:15 1.25: CLEAN P DECOMP RIH with 6.2" brush to knock any remaining debris down out of 7" tubing into 4-1/2" tubing tail pipe. Made it down to 9169' easlily. Looked like 1 bobble on weight were we saw the debris on previous runs. 12:15 - 13:30 1.25 CLEAN P DECOMP Lay down brush for 7", pick up brush for 4.5". Tool string will be 3" pump bailer, 4.5" brush, TEL to tie in to tubing tail. 13:30 - 14:00 0.50 CLEAN P DECOMP RIH with brush for 4.5" tubing tail, bailer, TEL. Tie into Tubing tail. Tagged bottom at 9813! POOH. 14:00- 15:15 1.25 CLEAN P DECOMP Tag up at surface, pump bailer, bailer was empty. Lay down bailer, hook up PDS MFC-GR-CCL tool. Check out caliper tool. 15:15 - 17:45 2.50 EVAL P DECOMP Log MFC-GR-CCL from TD to 9100'. 17:45 - 18:15 0.50 EVAL P DECOMP Stand by on downloading of MFC-GR-CCL information. 18:15 - 18:45 0.50 EVAL P DECOMP PDS reports that they have good log data. Rig down HES unit. 18:45 - 20:00 1.25 WHIP P WEXIT Back in and spot SWS logging unit. 20:00 - 20:15 0.25 WHIP P WEXIT SAFETY MEETING. Review procedure, hazards and mitigation for R/U and M/U of SWS running tools and BKR Whipstock. 20:15 - 21:00 0.75 WHIP P WEXIT Rig up SWS E-Line running tools. 21:00 - 21:30 0.50 WHIP N WAIT WEXlT Wait on orders form town to run whipstock. 21:30 - 22:45 1.25 WHIP :P WEXlT M/U BKR Gen 2, 3-5/8" OD whipstock on SWS running tools. Orient TF to running tools. 22:45 - 00:00 1.25 WHIP P WEXlT RIH with BKR whipstock on SWS E-Line. 9/19/2003 00:00 - 01:00 1.00 WHIP P WEXlT Log Tie-in with SWS GPJCCL/BKR Whipstock. Good Tie-in. TD = 9796 ft, Ref. SCMT/GR of 06/08/03. Casing collars on depth. Set top of Baker Gen 2 whipstock at 9766 ft. Set whipstock and logged off. RIH and tag top of whipstock at Printed: 10/6/2003 1:51:08 PM BP 'EXPLORATION Page 7~ ,. OPerations SummarY:Report . :: . · · Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALISTA Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 ?Da.te : :From,iTO Hours i' TaSk Code: :NPT :Phase :...'" DesCription of OPerations '. · . . 9/19/2003 00:00 - 01:00 1.00" WHIP P WEXIT 9765 ft. Whipstock set OK and did not fall down hole. TF = 25 deg. Right. 01:00 - 01:45 0.75 WHIP P WEXIT POH with SWS running tools. 01:45 - 02:15 0.50 WHIP P WEXIT Rig Down SWS E-Line equipment. 02:15 - 02:45 0.50 WHIP P WEXIT M/U Cement Nozzle BHA w/big hole nozzle, 1 jt, 2-38" PH6, XO, circ sub, disc, XO, CTC. Total length = 37.75'. 02:45 - 04:15 1.50 WHIP P WEXlT RIH with Cementing BHA to lay cement on whipstock. 04:15 - 04:30 0.25 WHIP :P WEXIT SAFETY MEETING. Review procedure, hazards and : mitigation for pumping 5 bbl cement job. 04:30 - 05:00 0.50 WHIP P WEXlT Correct -29 ft CTD at flag. RIH and lightly tag whipstock pinch point at 9768 ft. Baker whipstock is still set in place. Pick up 10 ft and flag CT at 9758 ft, for cleanout depth marker. Stage 5 bbl water. Press test cement line. 05:00 - 05:30 0.50 WHIP P WEXlT Stage 5.5 bbl, 15.8 ppg, G Cement. 1.1 bpm, 400 psi. Stage 5 bbl water. Stage 33 bbl, 2 ppb Biozan water to contaminate Cement during dress off. Displace with 1/2 ppb Biozan water. 2.9 bpm, 1900 psi. Lay in 5 bbl cement at 1.5 bpm, WCTOC at 9610 ft. Pull to 9470'. 05:30 - 06:00 0.50 WHIP P WEXIT Wait on cement to fall around whipstock before dressing off to flag on CT. 06:00 - 06:15 0.25 WHIP P WEXIT RIH and contaminate cement with 33 bbls Biozan, Dress off down to flag on CT. Circ. cement out of well. 3.8 bpm, 2100 psi. 06:15 - 09:30 3.25 WHIP P WEXlT POOH with cementing BHA. Pumping 3.65 bpm, pulling at 60%, trying to chase contaminated cement OOH. lAP=340 psi, OAP=0 psi. 09:30 - 10:05 0.58 WHIP P WEXlT Tag up at surface, lay down cementing BHA. Pick up jetting nozzle, jet the stack. 10:05 - 10:30 0.42 STWHIP N RREP WEXIT Standby while hydril hand works on accumulator. 10:30 - 11:00 0.50 STWHIP P WEXlT Make up Milling BHA. BHA#7 11:00 - 12:40 1.67 STWHIP P WEXIT RIH with milling BHA. SWS cement lab reports that cement is at 1000 psi compressive strength as of 11:00. We may begin milling when back at bottom. Check depth at first flag. Correction is-57'. RIH. 12:40 - 13:05 0.42 STWHIP P WEXlT Tag top of cement at 9757', should be more like 9775'. Kick on pumps, start milling cement. UCA shows 1400 psi compressive strength cement at this time. We will re set our depth to whipstock pinch point of 9785.5', based on tied in to PDC log for depth control once we are confident we are on the pinch point. Milling at 2.7/2.7/1450 psi. 13:05 - 14:00 0.92 STWHIP P WEXIT At pinch point, make a +12' correction. Depth at top of window is 9785.5'. Milling at 2.7/2.7/1534 psi. Top of cement was at 9769'. 14:00 - 15:00 1.00 STWHIP P WEXlT 9786.3', 0.8' into window. 2.7/2.7/1590 psi. 190 psi motor work, 2000 lbs weight on bit. IAP=312 psi, OAP=80 psi. Cement is at 2000 psi compressive strength at 14:45. 15:00 - 15:15 0.25 STWHIP P WEXIT 9787.2', 1.7' into window. 2.65/2.67/1626 psi. 222 psi motor work. 3800 lbs weight on bit. 15:15 - 16:00 0.75 STWHIP P WEXIT Pump 20 bbl sweep of 2# biozan/bbl pill. Printed: 10/6/2003 1:51:08 PM BP .EXPLORATION Page 8 ~ :, .::,., Operations Summary Report i Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALIST^ Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 :: :i,: Date: 'Fr°m-:T° ~ Hours 'Task': :code NPT : Phase" DesCriPtion'ofOperations" . 9/19/2003 16:00 - 16:50 0.83 STWHIP P WEXIT 9787.9', 2.4' into window. 2.63/2.65/1650 psi. 230 psi motor work. 4700 lbs weight on bit. 16:50 - 17:00 0.17 STWHIP P WEXlT 9788.4', Stacking more weight and getting more motor work. 17:00 - 17:10 0.17 STWHIP P WEXlT 9788.5', 3.0' into window. 2.65/2.65/1770 psi. 370 psi motor work. 5700 lbs weight on bit. 17:10 - 17:25 0.25 STWHIP P WEXlT PU to check depth. Hung up at 9775' and stalled the motor. RIH and are free. PU again, hung up again. RIH, free. Backream slowly up thru obstruction. Got up thru it ok. 17:25 - 18:00 0.58 STWHIP;P WEXlT 9788.5', Back on bottom, pump 20 bbls of 2# bio sweep. Got to try to keep those cuttings lifted. 18:00 - 19:00 1.00 STWHIP P WEXlT 9788.7', 3.2' into window. 2.63/2.63/1835 psi. 430 lbs motor work. 3400 lbs weight on bit. 19:00 - 20:10 1.17 STWHIP P WEXIT 9790', 4.5' into window, 2.6 / 2.6, 1650 psi, 200 lbs motor work, 1000 # wob. 20:10 - 21:15 1.08 STWHIP P WEXlT 9791', 5.5' into window, 2.6 / 2.6, 1600 psi, 200 lbs motor work, 500~ wob. 21:15 - 21:45 0.50 STWHIP P WEXIT 9792.2'. Extra motor work. Back ream up thru window, clean. Pull to 9750' and ream down clean to bottom. 21:45 - 22:45 1.00 STWHIP P WEXIT Mill down, exit casing at 9792.5 ft. 7 ft window. [ 9785.5 - 9792.5 ft ], Mill formation at 10 fph. 2.5 / 2.5 bpm, 1600 psi, 1500~ wob. Milled to 9802.5 ft. 22:45 - 23:45 1.00. STWHIP P WEXlT Back ream up thru window, Circ. high vis Biozan sweep. Clean window. Ream down. Clean. Back Ream, Ream down and up a total of 3 times. Clean window. 23:45 - 00:00 0.25 STWHIP P WEXIT Circ. in 30 bbl, Cross linked FIoPro to carry out metal milled from window. Lay in 17 bbls from TD at 2.0 bpm, Pull at 55 fpm. Leave top of XL pill at 9350'. Circ last 13 bbls XL pill to surface. Displace pill with KCL water. 9/20/2003 00:00 - 01:00 1.00 STWHIP P WEXlT Displace 30 BBL, Cross linked FIoVis pill with 50 bbl, KCL water. Leave top of XL Pill at 9350'. Circ. well to new FIoPro from 9350 ft. 01:00 - 03:30 2.50 STWHIP P WEXlT POH while chasing Biozan to surface with new flopro. 2.9 bpm, 2350 psi. Clean rig pits. Haul off fluids. 03:30 - 03:45 0.25 DRILL P PROD1 PRE-SPUD MEETING. Review well plan with all personnel. Review procedure, hazards and mitigation to M/U MWD BHA. 03:45 - 05:00 1.25 DRILL P PROD1 M/U SWS CTC. Pull / Press test. M/U 2.57 deg motor and re-built HC 3.75-4.125" Bi-center bit. M/U Sperry MWD and SWS MHA. 05:00 - 05:30 0.50 DRILL P PROD1 RIH with MWD build BHA. Shallow hole test tools. Circulation press to high. 4200 psi at 2.5 bpm. POH and check motor / bit. 05:30- 06:00 0.50 DRILL N DFAL PROD1 Change out motor. Adjust new motor. M/U BHA. 06:00 - 06:25 0.42 DRILL P PROD1 Shut down operations for crew change and safety meeting. 06:25 - 07:50 1.42 DRILL N DFAL PROD1 Continue troubleshooting BHA looking for plug. Found a couple poppy seed sized pieced of debris in the pulser. Found seals failed on orienter. Change out orienter. Pump thru BHA at surface. Got pulses and 2800 psi pump pressure. All looks ok. 07:50 - 08:45 0.92 DRILL N DFAL PROD1 RIH with BHA #8. Check pump pressures at 200', all worked ok. Rate=2.5, pressure=3000, Pulser working ok. 08:45 - 09:25 0.67 DRILL N DFAL PROD1 3050', While RIH, rate dropped off, pressure built up. Pumping 0.5 bpm, 2000 psi and building. Try cycling pumps to clean it up. Cycled pumps several times. Appears to be plugged up Printed: 1016/2003 1:51:08 PM BP EXPLORATION Page 9 ~ · Operations Summa Report I' Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALISTA Rig Release: 9~30~2003 Rig Name: NORDIC I Rig Number: N1 Date From· TO Hours .~TaSk COdel NPT Phase DescriPtion°f operations 9/20/2003 08:45- 09:25 0.67 DRILL N DFAL PROD1 again. Pumping 1.7 bpm, 4000 psi. 09:25 - 12:10 2.75 DRILL N DFAL PROD1 Tag up at surface. Stand back injector. Check motor, motor is fine. C/o Sperry equalizer sub. Pull Sperry orienter. Found a small amount of fine "poppy seed" sized gravel in the top of the probe. Approximately 15 pieces of very small sized gravel. It isn't sand, but almost that size. Where this is from is difficult to say. Change out Schlumberger MHA. Stand back BHA. Stab injector on well. Dismantle and inspect Schlumberger in line filter. Check Rig filter screens on suction lines. The filters are intact, but they have too large of mesh size to stop these , very small particles. Put everything back together. PT all. Pump down coil, taking returns to the pits. Pump at 4.5 bbl/min 3400 ps. Pump 2 coi volumes thru coil. SI pumping, stab BHA, make up injector. 12:10 - 14:00 1.83 DRILL N DFAL PROD1 Kick on pumps at 200', 2.5 bpm, 3000 psi, everything is ok. RIH to do shallow hole test at 3200', keep pumps on at .7 bpm while RIH. Shallow hole test of orienter. Only getting 10 degree clicks, but pressures are all good and the MWD is working. Decide to RIH, and try to get some hole dug today. Keeping pump rate at 0.7 while RIH. 14:00 - 14:40 0.67 DRILL N DFAL PROD1 SI pumps, Run thru 4-1/2 tail pipe. Stop at 9300', kick on pumps. Pump pressure is 4200 psi at 2.5 bpm. Pulser not working. *&^%$^%$~@@. Looks like we are plugged off again. Cycle pumps to attempt to free plug in BHA several times. No success. POOH, at 8300', cycle pumps and everything is working again. RIH, the BHA is intermittantly plugging off and getting free. RIH and try to get it to work for a while. Geo looked at sample of debris from previous run. It appears to be formation sand. However, some of it appeared to be chert. We have drilled no chert on this well as yet. The source of the material is probably not this well. Possibly a dirty vac truck when the mud was delivered? Driller kicks centrafuge on and reports significant particulate material being kicked out. ~14:40 - 15:10 0.50 DRILL N DFAL PROD1 Run back in the hole. Again. Tie into 9500' EOP flag. Make -5' correction. RIH. Everything works down to the window. SI pumps, run thru the window. Tag up pumps off at 9804', PU kick pumps on. Evertything working. Tag pumps on at 9802.8 15:10 - 17:00 1.83 DRILL N DFAL PROD1 Attempt to orient to 60R. Tool shut down again. POOH to sort this mess out. Call for MI to build new system. Call for empty vac truck to empty and clean pits. 17:00 - 18:00 1.00 DRILL N DFAL PROD1 Tag up at surface. Stand back the injector. Hold PJSM tool box talk. Change out orienter, this one only gave 10 deg clicks. Change out probe. 118:00 - 20:15 2.25 DRILL N DFAL PROD1 Wait on vac trucks of new mud from MI. Clean pits while waiting. !20:15 - 20:45 0.50 DRILL N DFAL PROD1 Circ. new FIoPro thru coil, recover old FIoPro. 2.7 bpm, 2000 psi. Send old FIoPro to MI to get filtered. Will use it near end of this well. 20:45 - 21:00 0.251 DRILL N DFAL PROD1 M/U MWD build BHA. Printed: 10/6/2003 1:51:08 PM BP EXPLORATION page 10 ~ Operations Summary Report Legal Well Name: G-12B Common Well Name: G-12B Spud Date: Event Name: REENTER+COMPLETE Start: 9/13/2003 End: Contractor Name: NORDIC CALISTA Rig Release: 9/30/2003 Rig Name: NORDIC 1 Rig Number: N1 ? Date ,~Fro'm To HOUrs Task Code NPT i phase` · DescriPtiOn of Operations 9/20/2003 21:00 - 23:00 2.00 DRILL N DFAL PROD1 RIH with MWD build BHA. Shallow test tools. OK. 2.4 bpm, 2800 psi. RIH. Test orienter. OK. RIH. " 23:00 - 23:15 0.25 DRILL P PROD1 Tag TD 9805 ft. Drill to 9808 ftl ' j 23:15 - 23:45 0.50; DRILL P PROD1 Orient TF around to 60R. ~/' 23:45 - 00:00 0.25 DRILL P PROD1 Drilling build section, 2.5 / 2.5 bpm, 2800 psi, 53 R TF, /,f" Drilled to 9815 ft. ~ 9/21/2003 00:00 - 01:30 1.50 DRILL P PROD1 Drilling build section. 2.4 / 2.4 bpm, 2900 psi, 60R T~, Drilled to 9850'. Saw XL FIoVis in returns. XL had metal in it asj;~nned. Took samples. XL fluid was spread out over 100 p~s of returns. Came over shaker in 1/4" chunks. Firmly,~.,Oss linked. 01:30 - 02:30 1.00 DRILL P I PROD1 Drilling, 2.5 / 2.5 bpm, 2900 psi, 65R,,T~, 35 FPH, Drilled to 9862 ft. 02:30 - 03:40 1.17 DRILL 3 PROD1 Log tie-in with RA tag to original oj;~n hole GR. Good tie-in. [ - 4.5 ft]. RA tag is at 9,786.5 ft. ~' 03:40 - 05:00 1.33 DRILL :) PROD1 Orient TF. Unable to get clic,,l~ on bottom. Pull to window. Got one click. Keep t~gs to get clicks, unable to orient. ~ 05:00 - 06:20 1.33 DRILL N DFAL PROD1 POH due to Iocked~,fenter. i06:20 - 07:30 1.17 DRILL N DFAL PROD1 Stand back inject, j~. Lay down BHA. _ 07:30 - 13:15 5.75 BOPSUF! P PROD1 Perform we~f the test was waived by the State ~heve. Blind sh~ear rams failed t~w seals passed fine. 13:15- 14:30 1.25 DRILL N DFAL :)ROD1 MU B,~A 11 w~~i-cente_r bit:. . 14:30- 16:30 2.00 DRILL N DFAL PROD1 RII~,~~I whole test, · Test orienter, OK. OD/,1/' ag TD at 9858 ft. 16:30- 16:45 0.25 DRILL N DFAL PR Orient TF to 120R. 16:45-19:30 2.75 DRILL P PRO/ID1 IDrilling, 2.6/2.6BPM, 2800PSI, 124R, 20FPH, Drilledto '9890 ft. 19:30 - 22:00 2.50 DRILL P ~PROD1 Drilling, 2.6 / 2.6 BPM, 3000 PSI, 121R, 8 FPH, Drilled to 9910 ft, having difficulties w/motor stalling w/only 300 psi differential 22:00 - 22:30 !PROD1 Drilling, 2.6 / 2.6 BPM, 3000 PSI, 121R, 7.5 FPH, Drilled to 0.50 DRILL P ,//'~ 9914 ft, Motor keeps stalling. Decision made to trip out, c/o motor. 22:30 - 23:45 1.25 DRILL PROD1 POH to c/o motor 23:45 - 00:00 0.25 DRIL~/ = PROD1 Lay down BHA, c/o motor 9/22/2003 00:00 - 00:45 0.75 DDP,,tEL; PROD1 MU BHA 12 with new motor, kept same bi-centered bit. 00:45 - 02:30 1.75,~ILL PROD1 RIH with MWD BHA #12. 2.57 deg motor. Tag TD @ 9914'. 02:30 - 02:450.2.,~'0.2 DRILL :~ PROD1 Orient TF to 120R. 02:45-06:00 .3,~5 DRILL ~ PROD1 Drilling, 2.6/2.6BPM, 2800PSI, 120R, 10FPH, Geo sample shows layered limestones and shales, slow drilling ahead. Drilled to 9943 ft. 06:00-08:3,gr" 2.50 DRILL ~ PROD1 Drilling, 2.8/2.8bpm, 2950psi, 130R, 30fph, 33degincl, Drilled to 10,000 ft. 08:30,?,~:)9:40 1.17 DRILL P PROD1 Orient TF to 70R. 09:.,40- 10:30 0.83 DRILL P PROD1 Drilling, 2.8/2.8 bpm, 2950 psi, 70R, 30 fph, 31 des incl, Drilled to 10,030 ft. '~0:30 -12:30 2.00 DRILL PROD1 POH for 1.04 deg motor. Flag CT at 9600' EOP. POH. 3.0 .~ BPM, 3250 PSI. 12:30 - 13:30 1.00. DRILL P PROD1 C/O Motor, Adjust motor to 1.04 deg bend, Re-run HC bi-center bit, [0-0-1], Check Sperry impeller, OK. C/O packoff. Printed: 10/6/2003 1:51:08 PM ( ..... STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVAL 20 AAC 25.280 1. Type of Request: / [] Abandon / [] Suspend [] Operation Shutdown [] Perforate [] Variance [] Other / [] Alter Casing [] Repair Well [] Plug Perforations [] Stimulate I-I Time Extension [] Change Approved Program [] Pull Tubing [] Perforate New Pool r'l Re-Enter Suspended Well r"l Annular Disposal 2. Operator Name: 4. Current Well Class: 5. Permit To Drill Number BP Exploration (Alaska) Inc. [] Development [] Exploratory 196-1,!,05 3. Address: [] Stratigraphic [] Service 6. APl Number: P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-20597-01-00 7. KB Elevation (ft): KBE = 65.72' 9. Well Name and Number: PBU G-12A 8. Property Designation: 10. Field / Pool(s): ADL 028280 Prudhoe Bay Field / Prudhoe Bay Pool Total Depth MD (ft): Total Depth TVD (ft): I Effective Depth MD (ft): IEffective Depth TVD (ft): Plugs (measured): Junk (measured): 11715 9023 I 11300 I 9048 11300 len~'th' :)'=,. :.'.'. size.:'::'.....!. "'. ', ~:..i ;iMD..' :';..... TVD.:'. , ...' ...':. ','B,urst .' : :.,, CO, llapse. · Structural Conductor 110' 20" x 30" 110' 110' Surface 2672' 13-3/8" 2672' 2672' 4930 2670 I nterm ediate 9721' 9-5/8" 9721' 8443' 6870 4760 Production L, in~r 1533' 7" 9212'- 10239' 8044'- 9008' 8160 7020 Liner 2491' 2-7/8" 9224' - 11715' 8053' - 9023' '" Perf0ration Depth MD (ft): I Perforation Depth TVD (ft):I Tubing Size: /.' Tubing Grade: I Tubing MD (ft): 10890' - 11675' 9025' - 9025' 7", 26# x 4-1/2", 12.6# L-80 9279' Packers and SSSV Type: 9-5/8" Baker packer; Packers and SSSV MD (ft): 9169'; 7" Otis SSSV Landing Nipple 2094' 12. Attachments: 13. Well Class after proposed work: [] Description Summary of Proposal [] BOP Sketch [] Detailed Operations Program [] Exploratory [] Development [] Service 14, Estimated Date for Commencing Operations: September 1, 2003 /'/' 15. Well Status after proposed work: [] Oil [] Gas [] Plugged [] Abandoned 16, Verbal Approval: Date: [] WAG [] GINJ [] WlNJ [] WDSPL Commission Representative: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Ted Stagg, 564-4694 Printed Name Ted Stagg Title CT Drilling Engineer Signature ~. __ ~ Phone 564-4694 Date ~/I/?d/d.:5 Terrie Hubble, 564-4628 :"~:'" · "~"~ ' .' '.: ' · ':' ': ' :" ....~..~'- ~"~.'"~i~:':.' .... ': ...... '! .'. ' ~ ..... ' ' ' ' · '. . '.",.: .."..'...' .,:..=. .:'.:' ;." ':i :. "."... :. :..: '.::.' .Commi~.~,~n.u~=.~m3t .:..'i :...'.. .:. .... ',, ....'. : ..'.. : '::. ...' . . ..' .' · , , . .....I ° u'Y "' L_~('L~~'' J ~'un~'-" Nu-'ber:"° ' ~.''~'-'''~ Conditions of approval: Notify Commission so that a representative may witness [] Plug Integrity [~OP Test [] Mechanical Integrity Test [] Location Clearance Other: '-r~5~. :,.' ~ , Subsequent form required 10- J"lO7 ' !::::': : ''~'~ ~"-'~'~ f/-'~~z.~ THE BY ORDER OF COMMISSION Approved By: COMMISSIONER Date Form 10-403 Revised 2/2003 Submit In D'~plicate ObP To: Winton Aubert Alaska Oil & Gas Conservation Commission From: Ted Stagg CTD Engineer Date: August 6, 2003 Re: CTD Sidetrack of well G-12A Well G-12A is scheduled for a through tubing sidetrack with the SLB/Nordic 1 coil drilling rig. The sidetrack, G- 12B, will kick off from a window milled in the Sag R. formation after cutting, pulling and possibly milling a portion / .... of the existing G-12A 2 7/8" liner. A cement evaluation log recently run on the G-12A 2 7/8" liner shows free pipe just above the Sag R. formation. Some cement is indicated across the Sag R. interval but the mechanical strength of cement across the Sag is difficult to predict. The desired KOP is the Sag R. interval or below. The plan summarized below calls for making an initial cut of the 2 7/8" liner below the Sag R. If the 2 7/8" cannot be pulled free from this cut then a second cut will be made just above the Sag R. where free pipe is more certain."~f the higher cut is required then approx. 50 feet of 2 7/8" will be removed by milling such that a whipstock may be installed within the Sag R. '"'" interval. The G-12B target is Zone 2. The following describes work planned to prep for sidetracking and is submitted as an attachment to Form 10-403. A schematic diagram of the proposed sidetrack is attached for reference. 1. Pulled 7" POGLM (4/14/02). 2. Log 2 7/8" liner with Cement Mapping Tool (6/08/03). 3. Ran PDS Caliper from top of 2 7/8" liner to surface. S_.et plug in tailpipe. (6/14/03). 4. Combo MIT (tbg. X IA) tested to 3000 psi (6/17/03).~ /,.-- 5. MIT-OA to 2000 psi (8/02/03). Tubing, IA and OA are at zero pressure. ' 6. Slick line will pull the tailpipe plug. 7. E-line will set and test a cast iron bridge plug at 10050' in the existing 2 7/8" liner. 8. E-line will chemically cut the 2 7/8" at approx. 10,000', in the Zone 4 interval. 9. Service coil will pull on the 2 7/8" liner. If the liner is free then service coil will rig down. 10. If the 2 7/8" liner is not free then e-line will make a second cut at 9770', just above the Sag R. 11. Service coil will rig up and pull on the 2 7/8" to confirm it is free. 12. Severed coil will be pulled by Nordic 1. E-line is scheduled to set the cast iron bridge plug on Sept. 1,2003./"Drilling coil is scheduled move onto the well for sidetrack drilling on Sept. 18, 2003. Ted Stagg CTD Drilling Engineer CC: Well File Terrie Hubble TREE ~ McEVOY 6" WELLHEAD = McEVOY ACTUATOR = OTIS KB. ELEV = 65.72' BF. ELEV = ' 37.2' KOP = 29OO' Max Angle 98 @ 11555' Datum MD = 1'0254' Datum TVD = 8800' SS I 13-3/8" CSG, 72#, L-80, ID = 12.347" Id 2672' Minimum ID = 2.347" @ 9224' TOP OF LINER G-12B Proposed CTD Sidetrack SAFETY NOTES: 2094' ]--~ 7" OTIS SSSV LAND NIP, ID = 5.962" t 2574' ~-~ 9-5/8" DV COLLAR J 3103' J--~ TUBING PUNCH HOLES J 9149' I--~ 7" PBR SEAL ASSY I 9169' I I TOP OF 4-1/2" TBG I--~ 9169' ] TOP OF 7" LNR Id 9212' { 9169' I-] 9-5/8" BAKER PKR, ID = 4.75" t I-I 9212' 9225' 4-1/2" OTIS X NIP, ID = 3.813" Top of 3-3/16" Liner 4-1/2" TBG, 12.6#, 1.5646 bpf, ID = 3.958" I--~ 9277' 9-5/8" CSG, 47#, L-80, BTRS, ID = 8.671" I-'~ 9720' PERFORATION SUMMA RY REF LOG: NONE USED MWD/PBD ANGLE AT TOP PERF: 81 @ 10890' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2" 4 10890 - 10950 isolated proposed 2" 6 11047 - 11072 isolated proposed 2" 4 11150 ~ 11450 isolated proposed 2" 6 11179 - 11204 isolated proposed 2" 6 11246 - 11271 isolated proposed 2" 6 11292 - 11312 isolated proposed 2" 4 11505 - 11675 isolated proposed 2" 6 11080 - 11155 isolated proposed ~0700' 9235' I--~ 3-1/2" X NIP, ID = 2.813" I 9245' H 4-1/2" OTIS XN NIP, ID = 3.725" (BEHIND LNR) 9277' 4-1/2" TUBING TAIL (BEHIND LNR) I 9266' I~ ELMD'Fr LOGGED 06/07/82 9592'I~ Top of Cement I Id3-3/16 x 2-7/8 X-over I I 3-3/16"X 2-7/8" Liner Id 11350' 9792' [--] Mechanical Whipstock [ 9800' Id Milled top of 2-7/8" liner o05o' I-I I 10234' J~ TOP OF WHIPSTOCK J 10239' - 10246' I I 7" LNR, 29#, L-80, .0371 bpf, ID = 6.875" 10745' 11300' TOPOFCEMENT 11475' CIBP-04/15/01 11681' 2-7/8" LNR, 6.16#, N-80, FL4S, .0058 bpf, ID = 2.347" DATE REV BY COMMENTS DATE REV BY COMMENTS 07112181 ORIGINAL COMPLETION 04/24/02 DBM/KK ADPERFS 07117196 CTD SDTRK COMPLETION 07/13/03 : CMO/'rLP MAX ANGLE CORRECTION 11/07100 SlS-LG CONVERTED TO CANVAS 01126/01 SIS-LG REVISION 04/241011 RN/TP CORRECTIONS 04/15/02 KSB/tlh POGLMPULLED PRUDHOE BAY UNIT WELL: G-12A PERMIT No: 1961050 APl No: 50-029-20597-01 SEC 12, T11N, RI3E, 2334' FNL & 2367' FEL BP Exploration (Alaska) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown_ Stimulate_ Plugging_ Perforate _X Add Perfs Pull tubing _ Alter casing _ Repair well _ Other _ 2. Name of Operator BP Exploration (Alaska), Inc. 3. Address P. O. Box 196612 Anchorage, AK 99519-6612 4. Location of well at surface 2334' FNL, 2367' FEL, Sec. 12, T11N, R13E, UM At top of productive interval 1571' FNL, 1024' FEL, Sec. 11, T11 N, R13E, UM At effective depth 2184' FNL, 1231' FEL, Sec. 11, T11N, R13E, UM At total depth 2479' FNL, 981' FEL, Sec. 11, T11 N, R13E, UM 5. Type of Well: Development _X Exploratow__ Stratigraphic__ Service__ (asp's 657854, 5969307) (asp's 653902, 5969988) (asp's 653708, 5969371) (asp's 653965, 5969080) 6. Datum elevation (DF or KB feet) RKB 66 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number G-12A 9. Permit number / approval number 196-1 O5 10. APl number 50-029-20597-01 11. Field / Pool Prudhoe Bay Oil Pool 12. Present well condition summary Total depth: measured true vertical 11715 feet Plugs (measured) 8958 feet Effective depth: measured 11318 feet Junk (measured) true vertical 9049 feet Tagged TD @ 11318' (04/23/2002). Top of Cement @ 11318'. ClBP set @ 11475' (04/15/2001). Casing Length Size Cemented Measured Depth True Vertical Depth Conductor 110' 20" 72 c.f. concrete 138' 138' Surface 2644' 13-3/8" 3627 c.f. 2672' 2700' Intermediate 9692' 9-5/8" 1435 c.f. 9720' 8442' Liner 1027' 7" 360 c.f. 9212' - 10239' 8044' - 8855' Sidetrack Liner 2491' 2-7/8" 16-3/4 bbls Class 'G' 9224' - 11715' 8053' - 9023' Perforation depth: measured Open Perfs 11047'-11072', 11080'-11155', 11179'-11204', 11246'-11271', 11292'-11312' Sqzd Perfs 10890'-10950', 11155'-11179', 11204-11246', 11271 '-11292', 11312'-11450' Perfs Below CIBP 11505'- 11675' true vertical Open Perfs 9038' - 9040', 9041' - 9044', 9043' - 9043', 9045' - 9046', 9047' - 9048' Sqzd Perfs 9025'- 9029', 9044' - 9043', 9043'- 9045', 9046' - 9047', 9048'- 9044' Perfs Below CIBP 9039'- 9024' 7", 26#, L-80 TBG @ 9169'. 7" x 4-1/2" XO @ 9169'. 4-1/2", 12.6# 7'ubi.~ng_ T._._ai! @ 9277'. 9-5/8" x 7" Baker Packer @ 9169'. ~'~ ;;-~ ' 7" Otis SSSV Landing Nipple @ 2094'. , · . ~ l-.~.,-.;~ i ,':"~'.':. 13. Stimulation or cement squeeze summary .::~ ,, ~... Intervals treated (measured) (see attached) Treatment description including volumes used and final pressure ?-,..,o:;;,, ...... 14. Representative Daily Averaqe Production or Injection D~ta .... OiI-Bbl Gas-Mcr Water-Bbl Casing Pressure Tubing Pressure Prior to well operation Well Shut-In Subsequent to operation 04/28/2002 108 2090 1 252 tubing (size, grade, and measured depth) Packers & SSSV (type & measured depth) 15. Attachments Copies of Logs and Surveys run __ Daily Report of Well Operations __ 16. Status of well classification as: Oil __X Gas __ Suspended _ Service 17. I hereby certify that the foregoing is t.rue and correct to the best of my knowledge. ~~ '-~~--~~ Title: Technical Assistant DeWayne R. Schnorr Form 1%404 Rev 06/15/88 · Date April 29, 2002 Prepared by DeWayne R. Schnorr 564-5174 SUBMIT IN DUPLICATE 04/08/2002 04/09/2002 04/1 O/20O2 04/14/2002 04/15/20O2 04/22/2002 04/23/2002 04/24/2002 O4/O8/O2 04/09/02 04/1 O/02 04/14/02 04/15/02 O4/22/O2 O4/23/02 O4/24/O2 G-12A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS PERF(ADD-pERF)· PERF(ADD-PERF)'. PERF(ADD-PERF): PERF(ADD-PERF): PERF(ADD-PERF): PERF(ADD-PERF): PERF(ADD-PERF): PERF(ADD-PERF): PACK-OFF GAS LIFT MANDREL FISH; PACK-OFF GAS LIFT MANDREL FISH; PACK-OFF GAS LIFT MANDREL FISH; PACK-OFF GAS LIFT MANDREL PACK-OFF GAS LIFT MANDREL PERFORATING JEWELRY LOG--DEPTH CONTROL; PERFORATING PERFORATING EVENT SUMMARY RIG UP B/L. DRIFT TO POGLM @ 3066' BLM. RUN LIB TO VERIFY FISH WON'T INTERFERE WITH PRT. SET PRT JAR UP. SHEAR. REPIN & RESET PRT. IN PROGRESS. MADE 6 RUNS AT ATTEMPTING TO PULL POGLM RESUME ATTEMPTING TO PULL POGLM, LEAVE POGLM BAITED WITH 7" PRT AND BEEFED UP 4 1/2" G-BAIT SUB FOR COIL. RU CTU ¢8 FISH POGLM. PUMP 1.25" STEEL BALL TO DRIFT NEW SPOOL OF COIL. RIH WITH BAKER 4.5" GS FISHING STRING. LATCH POGLM AND POOH. HANG POGLM AT MASTER VALVE. RIG UP ON CTU PULL 7" POGLM FROM TREE NOTE: ( SIDE OF POGLM COLLAPSED INWARD ) APPROX. 2' FROM BTM. & APPROX. 39" LONG, DRIFT W/4.47" GR TO 3250' SLM, DRIFT W/2" DG SB SD @ TOP OF LINER 9206' SLM RDMO-NOTIFY DSO TO- ( LEAVE WELL SHUT UNTIL AL GAS IS HOOKED UP ) MEM LOG/ADPERF, RIH WITH PDS MEM/GR/CCL/CENT TO TAG HIGH AT 11144' CTD. UP WT, POOH FOR MOTOR. RBIH WITH WFD 2.3" MILL. JOB IN PROGRESS. MILLED WITH WFD 2.3" MILL FROM 11147' - 11315' CTD, POOH, MU PDS GR/CCL RIH AND LOG FROM 10900'-11315' CTD, POOH, LOG SHOWS ONLY CCL, NO GAMMA RAY, RELOG. FLAG PIPE AT 11225' AND 11050' CTMD. THIS LOG SHOWS A 3' DEPTH CORRECTION (SHIFT UP) TIED INTO SWS MCNL/BORAX LOG DATED 04/23/1999. CORRECTED TD = 11318'. RIH W/2" 6 SPF TCP HSD GUNS. RIH W/2" HSD 6 SPF P J2006 GUNS. SHOOT INTERVALS 11292'-11312' (run ¢1), 11246'- 11271' (run ¢2), 11179'- 11204' (run ¢3), 11047'- 11072" (run ¢4). LOAD BACKSIDE W/5 METH/WTR, 283 BBLS CRUDE, 5 BBLS METH/WTR. RDMO. Page 1 G-12A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS FLUIDS PUMPED BBLS PRESSURE TEST LUBRICATOR W/1 BBL OF DIESEL, (2 TESTS) 239 60/40 METHANOL WATER 283 CRUDE 135 KCL WATER 80 SLICK KCL WATER 737 TOTAL ADD PERFS 04/24/2002 THE FOLLOWING INTERVALS WERE PERFORATED USING THE 2" PJ2006 6SPF, 60 DEG PHASING, RANDOM ORIENTATION. 11047'-11072' 11179'-11204' 11246'-11271' 11292'-11312' Page 2 STATE OF ALASKA ALASKA ..,L AND GAS CONSERVATION Ct. .MISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: []Operation Shutdown []Stimulate [] Plugging [] Perforate [] Pull Tubing [] Alter Casing [] Repair Well [] Other Cement Sqz, Mem-Log, Perf 2. Name of Operator BP Exploration (Alaska)Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 2333' FNL, 2366' FEL, SEC. 12, T11N, R13E, UM At top of productive interval 1571' FNL, 1024' FEL, SEC. 11,'T11N, R13E, UM At effective depth 2181' FNL, 1234' FEL, SEC. 11, T11N, R13E, UM At total depth 2479' FNL, 981' FEL, SEC. 11, T11N, R13E, UM i5.Type of well: [] Development [] Exploratory [] Stratigraphic [] Service (asp's 657855, 5969307) (asp's n/a) (asp's 653705, 5969373) (asp's 653965, 5969081) 6. Datum Elevation (DF or KB) KBE = 65.72' 7. Unit or Property Name Prudhoe Bay Unit 8. Well Number G-12A 9. Permit Number / Approval No. 196-105 10. APl Number 50- 029-20597-01 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool 12. Present well condition summary Total depth: measured 11715 feet true vertical 9023 feet Effective depth: measured 11314 feet true vertical 9049 feet Plugs (measured) Junk (measured) Window @ 10239' - 10246'. Abandoned 7" from 10239' to 10745'. CIBP set @ 11475', Top of Cement @ 11314'. Casing Length Size Cemented M D TVD Structural Conductor 110' 20" x 30" 72 c.f. 139' 139' Surface 2643' 13-3/8" 3627 c.f. 2672' 2672' Intermediate 9692' 9-5/8" 1435 c.f. 9721' 8443' Production Liner 1027' 7" 360 c.f. Class 'G' 9212' - 10239' 8044' - 8855' Sidetrack Liner 2302' 2-7/8" 90 c.f. Class 'G' 9230' - 11532' 8058' - 9036' Perforation depth: measured Open Perfs 11080' - 11155', Sqzd Perfs 10890' - 10950', 11155' - 11450' Perfs Below CIBP 11505' - 11675' true vertical Open Perfs 9041' - 9044', Sqzd Perfs 9025' - 9029', 9044' - 9044', Perfs Below CIBP 9039' - 9025' Tubing (size, grade, and measured depth) 7" 26#, L-80 tubing to 9169'. 4-1/2" 12.6# L-80 tubing tail FROM 9169' to 9266'. Packers and SSSV (type and measured depth) 9-5/8" Baker PKR (ID 4.75") @ 9169'. 7" Otis SSSVLN (5.962" ID) @ 2094'. 13. Stimulation or cement squeeze summary Intervals treated (measured) See Attachment Treatment description including volumes used and final pressure 14. Prior to well operation: Subsequent to operation: Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure : 15. Attachments [] Copies of Logs and Surveys run [] Daily Report of Well Operations 16. Status of well classifications as: [] Oil [] Gas [] Suspended Service 17. I hereby cer~fy that the foreg2ing_,is t,(ue and correct to the best of my knowledge Signed ~~ ¢¢~,,,~~ Title Technical Assistant Form 10-404 Rev. 06/15/88 Prepared By Name/Numben Date O ~'¢,,~ 7~//~(20// ,~ De Wayne Schnorr 564-5174 'f~ Submit In Duplicat~ G-12A Description of Work Completed NRWO OPERATIONS 03/17/2001 03/18/2001 03/19/2001 04/13/2001 04/14/2001 O4/15/2OO 1 04/19/2001 04/20,2001 04/20/2001 04/21/2001 04/22/2001 04/23/2001 05/24/2001 05/28/2001 CEMENT SQUEEZE: DUMMY OFF POGLM (CEMENT SQUEEZE) CEMENT SC CEMENT SC CEMENT SC CEMENT SC CEMENT SC CEMENT SC CEMENT SC CMT SQZ) ~UEEZE: !UEEZE: !UEEZE: ~UEEZE: ~UEEZE: ~UEEZE: ,UEEZE: CEMENT SQUEEZE: CEMENT SQUEEZE: CEMENT SQUEEZE: MITIA PRE-SQUEEZE DFF TO 10200' MD ( PRE SQZ ) MEM LOG / CIBP MEM LOG, CIBP, CEMENT SQUEEZE CEMENT SQUEEZE D & T, SET OGLV IN POGLM, POST SQZ D & T / SET OGLV IN POGLM (POST MILL,FCC, MEM LOG, PERF MILL,FCC, MEM LOG, PERF MILL,FCC, MEM LOG, PERF CEMENT SQUEEZE: MEM LOGS, PERF PERF(ADD-PERF): ADDPERF PERF(ADD-PERF): TROUBLESHOOT FISH IN POGLM SUMMARY 03/17/01 PULLED OGLV FROM POGLM @ 3098' SLM AND SET DGLV (RK) IN SAME 03/18/01 MITIA PASSED 03/19/01 DRIFT W/2.25 CENT. TO 10250 (SLM). ---WELL SI & FREEZE PROTECTED--- 04/13/01 MIRU. 04/14/01 LOAD WELL WITH 479 BBLS KCL, RIH WITH PDS TOOLS, TAG ON POGLM AT 3094; COULD NOT GET THROUGH, POOH AND RECONFIGURE TOOLS. RIH AND LOG FROM 11,450' TO 10,950'. PIPE FLAGGED AT 11,450'. POH. GOOD LOG. RIH WITH BAKER 2 7/8" CIBP. CORRECT DEPTH AT FLAG. SET CIBP AT 11,475' ELMD. POH. MU 1.75" CEMENTING NOZZLE. RIH . TAG POGLM, COULD NOT WORK THROUGH. POH. ADD STINGER, RIH, TAG CIBP, PAINT FLAG, JET 18 BBLS ACID AT 11450 WHILE PUMPING DOWN BS, FLUSH WITH 18 BBLS KCL. 04/15/01 PUH AND JET 25 BBLS ACID OVER 10890-10950, FLUSH WITH 95 BBLS KCL. LOAD BS W/83 BBLS KCL. PUMP 47 BBLS CEMENT WITH INITIAL SQUEEZE AT 1000 WHP. LAY CEMENT IN AND SQUEEZE UP TO 3200 WHERE IT BROKE DOWN. RETURNED TO SQUEEZE UP TO 3000. DROP BALL AND CONTAMINATE WITH BIOZAN DOWN TO 11,300'. POH AT 80% CIRCULATING OUT CONTAMINATED CEMENT. FREEZE PROTECT TUBING WITH METHANOL FROM 2000'. LEAVE 535 PSIG WHP. RD DS CTU #8. *** JOB COMPLETE - WELL TO REMAIN SHUT-IN *** 04/19/01 IN PROGR~_oS WITH 24 HR UNIT 04/20/01 DRIFT W/2.25" CENT, SB TO 10334' SLM,STOPED DUE TO (HAW) NO SAMPLE PULL AND DGLV (RK) FROM POGLM SET 1 1/2" OGLV 20/64" PORT IN SAME [GLV, Tag] 04/20/01 MIRU, PRESSURE TEST SQUEEZE TO 1000, GOOD, RIH W/ WEATHERFORD 2.335 3-BLADED JUNK MILL AND 2-1/8" MOTOR. TAG UP ON STRINGER AT 10245. WORK THROUGH EASILY AND CONTINUE IN HOLE. 04/21/01 TAG WITH MOTOR SPINNING AT 11104 BEGAN MILLING STRINGERS AT TO 11193. SLOW MILLING DOWN TO 11200; STACKED OUT WITH NO MOTOR WORK. TRIED SEVERAL TRICKS TO WORK DOWN BUT TO NO AVAIL. DID A LONG TRIP TO LINER TOP AND BACK. SET DOWN AT 11094 CTD AND COULD GET MOTOR WORK; POOH TO CHECK TOOLS. ELECTRONIC AND MECHANICAL COUNTERS SIGNIFICANTLY DIFFERENT. BIT LOOKS GOOD. MOTOR IS TIGHT. CHANGE OUT MOTOR. WORK ON ELECTRONIC DEPTH CONTROL. RBIH WITH MILL / MOTOR. TAGGED AT 11,195' CTMD. COULD NOT MAKE FURTHER HEADWAY, STACKED WEIGHT WITH NO STALL. PUMP BIOZAN SWEEP, POH. AT SURFACE, ELECTRONIC AND MECHANICAL COUNTERS SIGNIFICANTLY DIFFERENT AGAIN. CHANGEOUT ENCODER, RIH W/2" JETTING NOZZLE, CHECKING DEPTHS. AT 8593', ELECTRONIC DEPTH FROZE. 04/22/01 INVESTIGATING DEPTH PROBLEMS. POOH, REPLACE WITH A COMPLETE ENCODER AND CABLE. RIH TO PROVE COUNTERS. TAG AT 11318 DOWN, PU AT 11313. COUNTERS LOOK GOOD; POOH. CUT PIPE. MU SWS MEMORY GR / CCL. RIH FOR TIE-IN LOG. LOG 10,900' DOWN TO 11,300' CTMD. TAG TD AT 11,317.5'. PU AT 11,313'. PUH AND LOG UP TO 11,050', FLAG PIPE, CONTINUE LOGGING TO10,850'. POH. LOGGING TOOLS FAILED. CHANGEOUT MECH COUNTER. RIH W/MEMORY LOGS. LOG DOWN FROM 10100 TO TAG AT 10314. LOG UP TO 11050.4, PARK AND PAINT FLAG; CORRECTED DEPTH IS 11040.24 TO EOP. 04/23/01 LOG UP TO 10100. POOH, GOOD DATA. PU 25' GUNS AND RIH. SHOOT INTERVAL 11,130' TO 11,155'. ALL SHOTS FIRED. MU SECOND 25' GUN ASSEMBLY AND RIH. SHOOT INTERVAL 11105' TO 11130'. ALL SHOTS FIRED. MU THIRD 25' GUN ASSEMBLY AND RIH. SHOOT INTERVAL 11080' TO 11105'. ALL SHOTS FIRED. RDMO SCHLUMBERGER. 05/24/01 TAG ON POGLM AT 3112' COULD NOT PASS (RIH WITH CENTRALIZER TO ALLEVIATE THE PREVIOUS DIFFICULTY OF PASSING THROUGH POGLM AT 3096', BUT THIS DID NOT WORK, POOH AND RECONFIGURED TOOL WITH PPROF FULL BORE TOOL STRING), STRAIGHTEN TUBE AND RECONFIGURE TOOL STRING. RIH W/PPROF TOOL STAND UP AT 3112' PICK UP, PUMP ON BOTH SIDES ALTERNATELY AND SET DOWN AT 3095'. POOH. FLOW METER CENTRALIZER WAS BROKEN AND LEFT IN HOLE. RIG DOWN TO FISH WITH WIRELINE 05/28/01 RIH W/LIB TO DETERMINE FISH LOCATION. APPEARS TO BE IN SIDE POCKET Fluids Pumped BBLS, Description 2 DIESEL 69 CRUDE 10 NEAT 221 METHANOL 224 60/40 METHANOL/WATER 9O3 KCL WATER 510 1% KCL W/SLICK 858 SLICK KCL 130 BIOZAN 44 12/10 DAD ACID 56 FRESH WATER 47 CEMENT 3O74 TOTAL REPERFS 04/23/2001 SUMMARY The following interval was perforated using 2" HSD Power Jet gun, 4 SPF 60 degree phased, random orientation. 11080' - 11155' MD STATE OF ALASKA - ALASK? ,ILAND GAS CONSERVATION Ct- : ;ISSION 1NE! ! COMPLETION OR RECOMP LETION EPORT AND LOG 1. Status of Well Classification of Service Well OIL [] GAS [] SUSPEI~ED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number BP Exploration 96-105 13. Address 8. APl Number P. O. Box 196612, Anchora~le, Alaska 99519-6612 5o.029-20597-01 4. Location of well at surface 9. Unit or Lease Name 2334' SNL, 2367' WEL, Sec. 12, T11N, R13E ; -'.,_'~¢'~-;'~ ~ ,~: ......... .~, Prudhoe Bay Unit At Top Producing Interval ; .... ?./!~__%,,~__~i'~ ....i ';: '"-?:--' '.'-~' -¢.¢, 10. Well Number ~ i G- 12A 1571'At TotalSNL*Depth1024' WEL, Sec. 11, T1 ln, R13E .i 11. Field and Pool ;~;-~-~:~ Prudhoe Bay Field/Prudhoe Bay Pool 2479'SNL, 981' WEL, Sec. 11, T11N, R13E 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. KBE= 65. 72 028280 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth, if offshore 16. No. of Completions 6/26/96 7/7/96 7/17/96I N/A feet MSL one 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD) 19. Directional Survey 120. Depth where SSSV set 121. Thickness of Permafrost 11,715 8958 11681' YES [] N:) []I 2094feet MD I approx 1900' 22. Type Electric or Other Logs Run Gamma Ray 23. CASING, LINER AND CEMENTING RECOFD , SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BO'I-EOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 2 7/8" 6.16 L-80 9224 11,715 33/4" 163/4bblClass "G" 24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD interval, size and number) SIZE DEPTH SET (MD) PACKERSET (MD) 11285;450' 8980;8976'; 2'~ 4 spT 11150'-285' 8977' - 8980'; 2'~ 4 spt 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) 7/18/96 N2 lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MOF WATER-BBL CHOKE SlZE IGAS-OIL RATIO TEST PERIOD I Flow Tubing ICasing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. 24-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips, and presence ct oil, gas or water. Submit core chips. RECEIVED NOV £ 9 ~996 Alaska Oil & Gas Cons. Commis A~]ch0ra§e Form 10-407 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE 30. GEOLOGIC MARKERS ~- - - ~,TION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEP'T'H TRUE VERT. DEPTH GOR, and time of each phase. $1. LIST OF A'CI'ACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed C~~_~ Title Coiled Tubin_cl Drilling_ Eno_ineer Date 10/21/96 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- lng and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". Form 10-407 Daily Operations Well: G-12A Accept: 6/25/96 Field: Prudhoe Bay Spud: 6/2 7/9 6 APl: 50-029-20597-01 Release: 7/9/96 Permit: 96-105 CTD Unit: 4985/4905 Date Day Depth 6/25/96 1 10,251 N/D Swab valve, N/U flow cross and BOPS. Move in and rig up substructure and tower with 140 Ton Peak crane. Position CTD unit and finish general rig up of equipment. Perform BOP test. Circ SW to fill CT. 6/26/96 2 10,251 Circ SW to fill CT. MU BHA and press test. Function test orientor twice, OK. Anadrill MWD tools not working. Three tools, no batteries for primary bottom sensing tools and the back-up tool did not work. Assemble a tool on the Slope. M/U Monel and 2.25 deg bent Drilex motor. RIH with BHA to 3,400 ft and test Anadrill. Drilex orientor did not work. POOH. Replace orientor and RIH. Test orientor again at 3,400 ft. Did not orient. POOH. Change out to Sperry orientor. Tested OK. RIH to above window. Trouble shooting mud pump at report time. 6/27/96 3 10,547 Trouble shooting mud pump at report time. Tagged at 10236' (10239' corrected). Start drilling 3.75" sidetrack. Add 3 ft to CTMD after drilling past GR marker at 10,243 ft. Drill Build section. Unable to rotate orientor in open hole, pull up into 7" liner to orient, then RIH and drill. Fast drilling. Difficult to drill with correct tool face when orienting inside liner, the tool face shifts while RIH to TD. Anadrill tools and Sperry Sun orientor working OK. Drilling slowed below 10485'. Bit problems? Having problems making hole at report time. 6/28/96 4 10,643 Continue working BHA @ 10547'. Unable to make hole. POOH. Change out motor and bit. Bit #1 was cored and slightly undergauge [drilled thru some chert]. Experiencing too much downtime w/Nabors mud pump. RU BJ for pumping. Inspect inj head. RIH with Bit #2. Encountered solids when entering window. Drilled to 10638'. Build section and turn completed. Stacking again at 10638'. Bit might be trashed. Experiencing some over pull off bottom. Wiper trip back to window/flag. 5' shallow. Corrected TD is 10643'. Pulled for bit/motor change. Opened circ sub and chased OOH. Bit flattened and starting to core. Upper monel has small crack in the body. Change out BHA. Anadrill has steering package on top now. Motor has 1.25° bend. RIH. 6/29/96 5 1 0,724 RIH with Bit #3RR, Circ. 30 BBL high vis pill on bottom. [Re-servey to check results with new MWD configuration (steering package on top vs. on bottom). No major difference in azimuth. Survey at 10542' showed 74.9° inclination vs. 76.0° on the initial run. Surveys reported below are corrected surveys]. Ream to TD with tool face in several directions to clean hole. Drill with 1.25° bent motor at 60 FPH. Take surveys every 30 ft. Slow ROP at 10,710 ft, Circ. high vis pill and POOH at 10,720 ft. Check GR reel flag. TD changed to 10724 ft. POOH while circ at 3 BPM. M/U Bit #4. RIH. Correct and tag at 10724'. MWD flat lining. POOH. Steering package failure. Changed out MWD. RIH w/BHA #7 (same as BHA #6 except steering package is back on bottom). 6/30/96 6 10,820 RIH w/ BHA #7 (steering package back on bottom), Tie-in with GR marker. Drill with tool face at 240° from 10,724 -10,784 FT (4 hrs). POOH for bit change. Service inj head. RIH with BHA #8, diamond bit. Tied in and resumed drilling. Drilled to 10800' at 20 FPH then slowed. Problems with stalling then stacking, 4 FPH. ROP increased below 10815' to 20 FPH. Bit stopped drilling at 10820'. [Total of 36 hrs]. POOH. L/D motor. Bit smoothed, face flattened, several diamonds missing, in gauge. Change out batteries in MWD. 7/1/96 7 10,886 RIH with BHA #9, test tools at 3400 ft. Pulsar not working right. POOH. C/0 pulsar, RIH and test at 3400 ft. OK, RIH to TD. Drill with 1.25° bent motor from 10,820 -10,884. 30 - 50 FPH w/very slow streaks. Reamed bottom 100' to dress off possible ledges. Stuck at the bit briefly at 10,884'. Wiper trip to window. Reamed below 10,800'. Resumed drilling, hard and slow. Samples showing all conglomerate. Hole sticky. Do not appear to be getting good cuttings removal. Sweep horizontal with HI-VIS. Hole conditions much improved. Still wouldn't drill. Bit worn. Chased HI-VIS sweep OOH (slowing to 1 BPM across the weld). Bit badly damaged. 2 chunks of blades broken. 1/8" under gauge. Call out for junk basket. 7/2/96 8 10,977 M/U BHA #11 with Venturi junk basket. RIH to fish two small pieces of blades from HC bits. Took several orienting attempts to get through the window. Sat down at 10875' and pumped. Recovered 1 qt of sand and silt stone. Several large chunks of silt stone (2" x 3") recovered. No metal recovered. SD for alliance contract award announcement. MU drilling BHA #12, Hycalog bit. Tied in at RA tag. Tagged at 10887'. Hole in gauge to TD. Indications of a chunk of junk at the bottom. Pushed it to bottom and drilled by no problem. Drilled ahead holding angle drop. Started building rapidly. Appear to have bounced off 21N shale. Drill ahead dropping angle. Having some problems sliding over hump from 10890' - 10940'. Ream. 7/3/96 9 1 1,020 Reamed directional hump created by bouncing off shale. Drill one ft and POOH for new bit and MWD change. RIH with Bit #8. Check tools at 3400 ft. OK. RIH through window, no fill at window. RIH to TD of 10,978 ft. Drill to 11,000'. POOH to check bit. No bit damage (suspect too little cutter exposure), change out bit and motor. TIH to 3400', check Anadril tools-tools failed, POOH. Replace pulser, TIH to 3400'. Check Anadril tools - OK, continue TIH. Wash & Ream final 120' to bottom w/toolface at _+180°. Drill ahead. MWD log indicates crossed fault at 10981' MD (8963.68' TVD) 7/4/96 10 1 1,310 Drilled from 11020 to 11050 where we broke out of the shale. Had difficulty sliding for awhile then began to PU speed. Control drilled @ 40-45 ft per hour. Surveyed every 30-35 ft. Drilled good sand from 11050 to 11252 where Anadril tool partially plugged during a vis pill sweep and quit sending signals. Pulled into casing and tried to free same using higher flow rates without success. Pulled out. Found rocks plugging Anadril pulser, replace and re-run same bit. Stacked out at 9 5/8" packer while TIH. Pump hi-vis sweep and clean up cuttings settled out at tailpipe. Continue in hole and drill ahead. 7/5/96 11 1 1,580 Drilled from 11310 to 11450. Ran wiper trip past production packer including 20 bbl high vis sweep. Logged RA tag in whipstock. Corrected depth +18 ft. Depth had slipped over last 48 hrs. Drilled from 11468 to 11583'. Unable to get bit to drill off. Pooh to check bit. Found mark and bend in pipe. Camco rep inspected-decision to replace pipe. Pooh. Displace CT w/fsw. 7/6/96 12 1 1,580 Laid down drilling tools. Removed bad spool of pipe. Installed new string of pipe. hi-vis sweep to clean CT. PU tools, pressure test, TIH to 3400'. Test Anadril tools 15,500 ft. Pumped 7/7/96 13 1 1,715 Drill to 11,715'. No indication of shale. Td at 11715'. Pump hi-vis sweeps and clean hole. POOH, LD tools. Begin picking up 2 7/8" liner. 7/8/96 14 1 1,715 PU 2 7/8" liner. TIH w/liner. Hit bridges at 11,500' and 11,600'. Work liner through bridges and TIH to 11,715'. Release from liner and POOH. Displace CT w/FSW. LD liner running tools and begin rig down. 7/9/96 15 1 1,715 Rig down and move out Camco 4985. MI/RU Camco 4905 1-3/4" coil. PU TIW stinger and Baker FN. Ran in and tagged TIW packoff bushing @ 11697 CTD. Mix and pump 16-3/4 bbl "G" slurry w/ latex. Dart landed and sheared as per program. Tried to pull out of TIW packoff bushing. Last foot of stinger (where circ holes are) would not pass bushing-we're stuck. Worked pipe without pumps and at min rate. Unable to get past packoff bushing. Waited 6 hours for cement to firm up outside of liner. Pressured up below packoff bushing to 2000 psi. Bled pressure back off. Pulled out of bushing-we're free. Maintained coil displacement w/pump while pulled to top of liner. No overpulls. Established good circulation- sheared mud. Pumped 20 bbl high-vis pill on top of liner to keep cuttings/rocks from falling into liner before perforating operations. Circ out of hole. Left 100 ft sea water cap on well. Note: shoe overdisplaced by .5 bbl (88 ft of annular space) during unstinging operations. Examination of TIW tool at surface gave no hint of problem. Debris that could have been sticking out cementing ports on stinger, suspected to be the problem, may have been completely washed out during circulation to surface. 7/15/96 Well was SI on arrival. NU DSR BOP's. RIH with 2.25" nozzle to 200'. Displace CT and top 200' of well to FIoPro mud. RIH circulating and conditioning FIoPro. Tagged seal assay and top of liner, but did not set down. Subsequent runs did not tag. RIH to PBD and tagged @ 11681 CTD - no correction (right on the money to ELMD). Jetted liner from PBD to 9100' and back to PBD. Jetted liner back to 8800' and park. Displace FIoPro in production tubing to FSW. Recovered 326 bbls FIoPro. POOH. LWSI 7/16/96 Well was SI on arrival. Check well for pressure. None. Function test DSR BOP's. Pick up perf gun assembly #1 and RIH on CT to PBD @ 11681' up CTD, no correction. PUH to per[ depth and per[orate 11285-450'. Check well for vitals, stable. POOH keeping hole full w/ FSW. LD guns, all shots fired. Pick up perf gun assembly #2. RIH on CT to 11285' CTD and verify depth w/flag from previous run. Perforate 11150-285'. Check well for vitals, stable. POOH keeping hole full with FSW. LD guns, all shots fired. Guns were clean inside and out. RDMO perforating equipment. LWSI FN. 7/17/96 Well was SI on arrival. Check well for pressure and it was on a vacuum. RIH with CT to 7000' and pumped 280,000 SCF N2 to kick off well. Test separator was unavailable, but spot samples recovered a bunch of SW which changed to oil on last sample. Leave well open to LDF header to see if it will flow with out assistance. Note: Perforated 11,150-450' ELMD w/2" Alpha Jet Guns @ 4 SPF, 90 degree phz, 6.5 GR in two runs using PBD as reference. G-12A Anadrill ******************** Survey Program ******************** Company Well Name Location 1 Location 2 Magnetic Declination Magnetic Model Magnetic Model Date Grid Convergence Angle Grid Zone KBE Date Anadrill Job Number AFE APl BP Exploration G-12A Prudhoe Bay North Slope Borough, Alaska 28.42 deg IGBG-95 6/25/96 Alaska State Plane Zone 4 65.72 ft 10/2/96 38043 F51G12 50-029-20597-01 Well Head Location Grid X 657854.00 Grid Y 5969307.00 Lat (N/-S) 70° 19' 22.221" Long(E/-W) -148° 43' 12.202" 70.32283921 -148.72005611 Azimuth from Tie-In to TD is Departure from Tie-In to TD is 167.91 981.29 deg ft Tie-In Point (TIP) Measured Depth True Vert Depth Inclination Azimuth Latitude (N/-S) Departure (E/-W) 10200.00 ft 8824.22 ft 37.65 deg 289.00 deg 814.95 ft -4099.14 ft ********** Note: All Directions & Coordinates are referenced to TRUE North **** ...... Anadrill - Schlumberger Alaska District G-12A Anadrill Survey Calculations Minimum Curvature Method Measured Interval Vertical Target Station Azimuth Latitude Departure Displacement at Azimuth DLS Depth Depth Section Incln. +N/-S +E/-W ft ft ft ft deg deg ft ft 10200.00 0.0 8824.22 -1655.29 37.65 289.00 814.95 -4099.14 10230.00 30.0 8847.92 -1664.55 38.00 287.32 820.68 -4116.62 10245.00 15.0 8859.73 -1669.09 38.10 287.32 823.43 -4125.45 10322.00 77.0 8910.89 -1692.59 58.20 278.62 835.55 -4181.11 10342.00 20.0 8921.51 -1698.00 57.70 274.42 837.47 -4197.94 deg/ ft deg 100ft 4179.37 281.24 0.00 4197.63 281.27 3.63 4206.83 281.29 0.67 4263.78 281.30 27.38 4280.67 281.28 17.97 10362.00 20.0 8931.26 -1702.98 63.90 274.52 838.83 -4215.34 10392.00 30.0 8943.39 -1709.88 68.40 270.52 840.02 -4242.74 10422.00 30.0 8954.72 -1713.99 67.30 262.32 838.30 -4270.44 10452.00 30.0 8966.19 -1714.09 67.80 253.92 832.59 -4297.54 10482.00 30.0 8976.75 -1709.70 71.10 244.02 822.51 -4323.71 4297.99 281.25 31.00 4325.10 281.20 19.33 4351.94 281.11 25.58 4377.45 280.96 25.93 4401.25 280.77 32.79 10512.00 30.0 8986.05 -1700.92 72.80 235.92 808.24 -4348.37 10542.00 30.0 8994.43 -1687.45 74.90 224.12 789.75 -4370.40 10572.00 30.0 9000.88 -1669.48 80.30 216.02 767.34 -4389.22 10602.00 30.0 9004.64 -1648.06 85.30 207.62 742.08 -4404.88 10620.00 18.0 9005.99 -1633.75 86.10 202.52 725.82 -4412.48 4422.85 280.53 26.29 4441.18 280.24 38.42 4455.79 279.92 31.92 4466.95 279.56 32.39 4471.78 279.34 28.60 10650.00 30.0 9007.64 -1607.89 87.60 193.72 697.38 -4421.79 10680.00 30.0 9008.17 -1580.59 90.40 191.02 668.09 -4428.21 10728.00 48.0 9007.62 -1535.80 90.90 186.82 620.68 -4435.65 10758.00 30.0 9007.99 -1507.22 87.70 184.32 590.83 -4438.56 10787.00 29.0 9010.06 -1479.25 84.10 180.92 561.95 -4439.89 4476.44 278.96 29.71 4478.33 278.58 12.96 4478.87 277.97 8.81 4477.72 277.58 13.53 4475.31 277.21 17.05 10817.00 30.0 9013.60 -1449.81 82.40 171.52 532.26 -4437.93 10847.00 30.0 9018.19 -1420.18 80.00 166.52 503.16 -4432.29 10887.00 40.0 9024.79 -1380.79 81.00 163.12 465.09 -4421.96 10902.00 15.0 9026.74 -1365.99 84.10 161.62 450.92 -4417.45 10917.00 15.0 9027.85 -1351.15 87.40 160.12 436.79 -4412.55 4469.73 276.84 31.63 4460.76 276.48 18.31 4446.35 276.00 8.75 4440.41 275.83 22.92 4434.12 275,65 24.15 10947.00 30.0 9029.13 -1321.65 87.70 155.32 409.06 -4401.19 4420.16 275.31 16.02 10960,00 13.0 9029.80 -1309.08 86.40 151.92 397.44 -4395,43 4413.36 275,17 27.97 10995.00 35,0 9032.55 -1275.76 84.60 149.32 367,03 -4378.31 4393,67 274,79 9.02 11030.00 35.0 9036.00 -1243.36 84.10 143,62 338.01 -4359,08 4372.17 274,43 16.27 11065.00 35.0 9039.84-1212.12 83.30 140.02 310.67-4337.58 R~'3~VE~4.10 10.48 NO',/ 2 9 1996 Anadrill - Schlumberger Alaska 0il & 8as Cons. C~ii&i~istrict Anchorag0 G-12A 11100.00 35.0 9043.13 -1181.81 85.90 136.72 284.63 -4314.44 11135.00 35.0 9044.14 -1151.88 90.80 136.82 259.15 -4290.48 11170.00 35.0 9043.50 -1122.72 91.30 131.92 234.69 -4265.47 11205.00 35.0 9043.04 -1095.13 90.20 128.02 212.21 -4238.66 11257.00 52.0 9044.95 -1056.96 85.60 122.42 182.26 -4196.24 11292.00 35.0 9047.48 -1033.06 86.10 119.82 164.22 -4166.35 11327.00 35.0 9049.25 -1009.28 88.10 121.72 146.34 -4136.32 11362.00 35.0 9049.40 -984.32 91.40 125.12 127.06 -4107.12 11397.00 35.0 9047.69 -958.39 94.20 126.52 106.61 -4078.78 11432.00 35.0 9045.04 -931.23 94.50 131.52 84.64 -4051.67 11467.00 35.0 9042.56 -902.93 93.60 132.62 61.25 -4025.75 11492.00 25.0 9040.47 -882.14 96.00 136.42 43.79 -4008.00 11537.00 45.0 9035.49 -843.07 96.70 141.22 10.14 -3978.56 11555.00 18.0 9033.24 -826.98 97.70 143.12 -3.96 -3967.60 11590.00 35.0 9028.91 -794.96 96.50 147.22 -32.47 -3947.77 11625.00 35.0 9025.83 -761.99 93.60 150.72 -62.34 -3929.81 11660.00 35.0 9024.70 -728.18 90.10 155.52 -93.53 -3914.00 11715.00 55.0 9023.40 -674.00 92.60 161.02 -144.58 -3893.65 *********** ........ * End Of Survey ********* ........*** 4323.81 273.77 11.97 4298.30 273.46 14.00 4271.92 273.15 14.07 4243.97 272.87 11.58 4200.19 272.49 13.93 4169.59 272.26 7.55 4138.91 272.03 7.88 4109.08 271.77 13.54 4080.17 271.50 8.94 4052.55 271.20 14.27 4026.22 270.87 4.05 4008.23 270.63 17.93 3978.57 270.15 10.71 3967.61 269.94 11.85 3947.91 269.53 12.12 3930.30 269.09 12.96 3915.12 268.63 16.97 3896.33 267.87 10.98 Anadrill - Schlumberger Alaska District I GeoQuest 500 W. International Airport Road Anchorage, AK 99518-1199 ATTN: Sherrie NO. 10595 Company: Alaska Oil & Gas Cons Comm Attn: Lori Taylor 3001 Porcupine Drive Anchorage, AK 99501 1 1/25/96 Field: Prudl~oe Bay (Open Hole) LIS Well Job # Log Description Date BL RF Sepia 'rape G-12A 7~z~ 96295 OH EDIT-MWD SLIM GR 960706 I I 1 R-39A 7~i~:) ~ 96240 OH EDIT-MWD SLIM GR 960623 I I 1 S-40A 7S~- 96296 OH EDIT-MWD SLIM GR 960914 I I 1 -] --- _ PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotectnical Data Center MB3-3 900 E. Benson Blvd. Anchorage, Alaska 99519-6612 Date Delivered: Schlumberger GeoQuest 500 W. International Airport Road Anchorage, Alaska 99618-1199 Received by: 10/22/96 GeoQuest 500 W. International Airport Road Anchorage, AK 99518-1199 ATTN: Sherrie NO. 10505 Company: Field: Alaska Oil & Gas Cons Comm Attn: Lori Taylor 3001 Porcupine Drive Anchorage, AK 99501 Prudhoe Bay (Cased Hole) Well Job # Log Description Date ElL RF Sepia LIS Tape B-01 PRODUCTION PROFILE 9 61 0 0 2 1 1 -- B-02A PERFORATING RECORD 9 6 0 9 2 8 I 1 C-12 INFLATABLE BRIDGE PLUG 961 004 I 1 ,, C-12 INFLATABLE ElRIDGE PLUG 9 61 01 0 I 1 C-32 PERFORATING RECORD 9 61 0 0 5 1 1 C-42 TUBING PUNCH 9 6 0 92 9 1 1 -- F-16 LEAK DETECTION LOG 961 01 1 I 1 ,, -~F'I 6 BAKER WHIPSTOCK SET.REC. 961 01 2 I 1 w-0 X-19B BRIDGE PLUG REC.DEPTH DET. 960903 1 1 X-19B PBI. BRIDGE PLUG REC.DEPTH DET. 9 60 9 01 1 1 Y-28 STATIC PRESSURE SURVEY 9 61 01 5 I 1 Y-34 STATIC PRESSURE SURVEY 9 61 01 5 I 1 .... Z-01 PRODUC~ON PROFILE 9 61 007 I I PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotectnical Data Center · MB3-3 900 E. Benson Blvd. Anchorage, Alaska 99519-6612 Date Delivered: Schlumberger GeoQuest 500 W. International Airport Road Anchorage, Alaska 99618-1199 R ece 'ved',,by!_~.,~'~-.-) / _~~,~. ~r~ S, ATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon ~ Suspend . Operation Shutdown ~ Re-enter suspended well Alter casing Repair well Plugging x 'lqme extension Stimulate Change approved program Pull tubing Variance Pedorate Other 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. 0. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 2334' SNL, 2367' WEL, SEC. 12, T11N, R13E, UPM At top of productive interval 1571' SNL, 1024' WEL, SEC. 11, T11N, R13E, UPM At effective depth 1460' SNL, 1347' WEL, SEC. 11, T11N, R13E, UPM At total depth 1401' SNL, 1498' WEL, SEC. 11, T11N, R13E, UPM 5. Type of Well: Development X Exploratory . . Stratigraphic Service . 6. Datum elevation (DF or KB) KBE = 65. 72 AMSL 7. Unit or Property name Prudhoe Bay Unit 8. Well number G-12 9. Permit number 81-68 10. APl number 50- 029-20597 11. Field/Pool Prudhoe Oil Pool feet 12. Present well condition summary Total depth: measured true vertical 10748 feet BKB 9259 feet Effective depth: measured 10484 feet true vertical BKB 9050 feet Casing Length Size Structural -- Conductor 110 20x30 Surface 2643 13 3/8 Intermediate 9692 9 5/8 Production -- Liner 1533 7 Perforation depth: measured 10396'-10448', 10456'-10466' true vertical subsea Plugs (measured) Junk (measured) Cemented 8 c.y. 3627 c. f. 1435 c.f. 360 c.f. ,- IGINAL fill at 10484'MD (12/89) Measured depth True vertical depth BKB 139 139 2672 2672 9721 8442 9212-10745 8043-9257 Sqzd: 10322'-10358', 10380'-10396' RECEIVr ) Tubing (size, grade, and measured depth) 7" L-80 to 9149' with 4 1/2" tailpipe to 9279' ,1U N 0 4 loo ~ Packers and SSSV (type and measured depth) 9 5/8" PBR/packer assy. at 9149'; 4 1/2" SSSV & i~ I~A~rC~;' ..,,,,,.,~1o~. 13. Attachments Description summary of proposal × Detailed operations program ~ BOP sketch 14. Estimated date for commencing operation June 10, 1996 16. If proposal was verbally approved Name of approver Date approved 15. Status of well classification as: Oil X Gas Suspended~ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed ~~~ ~ Title Coiled Tubing Technical Assistant FOR COMMISSION USE ONLY Date 6/3/96 Conditions of approval: Notify Commission so representative may witness Plug integrity -~.,'~ BOP Test '"' Location clearance ~ Mechanical Integrity Test ~ Subsequent form required 10- ~O '/ Original Signed By Approved by order of the Commission David W. Johnston Approved Copycommissioner Retu,-,,ed Form 10-403 Rev 06/15/88 I Approval NO.~ ~u3--' ) 0':':~0 SUBMIT IN TRIPLICATE TO~'Y KNOWLE$, GOVERt'IOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (g07) 27,.9-1433 F,,',.X: (907~: 27S-7542 June 13, !996 Ted Sta~. BP Exploration (Alaska), Inc. P O Box 196612 Anchorage. AK 995 i 9-6612 Re' Well # C o mp any Pe~it # Surf Loc Btmhole Loc Prudhoe Bay Unit G-12A BP Exploration (Alaska),-inc. 96-105 '"", ! . ~'~ I ~ . ~ 23¢4 SNL. _~67 WEL. Sec 12, T1 iN'. RicE, UM ?'~4 I'SNL. 1'~'''~'~ _, ' _.. . ~=~ w~zz, Sec lO 2'11N. RloE. UM Dear Mr. Stagg: Enclosed is the approved application for permit to re-drill the above referenced well. The permit to re-drill does not exempt you from obtaining additional permits required by lax',, from other govetunnental agencies, and does not authorize conducting re-drilling operations until all other required permitting detem~inations are made. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25.035. Sufficient notice (approximately 24 hours) must be given to allow a representative of the Cormnission to xvitness a test of BOPE installed prior to drilling a new hole. Notice may be given bx' contacting the Commission's petroleum field inspector on the Notch Slope pager at 659-3607. Chairm~'}E~~..~ BY ORDER OF THE COMlvlISSION dlffenci c' Dept of Fish & Game, Habitat Section- w/o encl Dept of Environmental Conservation - w/o encl STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 2O AAC 25.0O5 la. Type of work Drill [] RedrillE]llb. Type of well. Exploratoryi-] Stratigraphic Test [] Development Oil [] Re-Entry [] DeepenI-II Service [] Development Gas [] Single Zone [] Multiple Zone [] 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration KBE-- 65. 72 AMSL feet Prudhoe Bay Field/Prudhoe 3. Address 6. Property Designation Bay Pool P. O. Box 196612. Anchoraoe. Alaska 99519-6612 02.~280 4. Location of well at surf-ace 7. Unit or property Name 11. Type Bond(see 20 AAC 2s.o25) 2334' SNL, 2367' WEL, Sec. 12, T11N, R13E Prudhoe Bay Unit At top of productive interval 8. Well number Number 1571'SNL, 1024' WEL, Sec, 11, T11N, R13E G-12A 2S100302630-277 At total depth 9. Approximate spud date Amount 2241' SNL, 1323' WEL, Sec. 12, T11N, R13E 6/21/96 $200,000.00 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property15. Proposed depth(uDandTVD) property line ADL 28285 @ 3037 feet no close approach feet 2560 11532'MD; 8970' TVD feet 16. To be completed for deviated wells 17. Anticipated pressure (see 20 AAC 25.o3s (e)(2)) Kickoff depth 87~4 TVD feet Maximum hole angle e7 o Maximum surface psig At total depth (TVD) 3440/8800' psig 18. Casing program Setting Depth size Specifications Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length M D TVD M D TVD (include stage data) 3 3/4" 2 7/8" 6.16 L-80 FL4S 2300 9230' 8057' 11532' 8970' 90 cu. ft. cement KELt vi: 19. To be completed for Redrill, Re-entry. and Deepen Operations. MAY ~) 0 t996 Present well condition summary Total depth: measured 10748 feet Plugs (measured) Alaska 0il & Gas Cons. commission true vertical BKB 9259 feet Anchorage Effective depth: measured 10484 feet Junk (measured) fi#at 10484'MD (12/89) true vertical BKB 9050 feet Casing Length Size Cemented Measured depth True Vertical depth Structural -- BKB Conductor 110 20 x30 8 c.y. 139 139 S u rface 2643 13 3/8 3627 c.f. 2672 2672 I nte r med late 9643 9 5/8 1435 c.f. 9721 8442 Production -- Liner 1533 7 360 c.f. 9212-10745 8043-9257 Perforation depth: measured Sqzd: 10396'-10448', 10456'-10466', 10322'-10358', 10380'-10396' true vertical 20. Attachments Filing fee [] Property plat [] BOP Sketch [] Diverter Sketch [] Drilling program IT1 Drilling fluid program [] Time vs depth plot [] Refraction analysis l-I Seabed report[] 20 AAC 25.050 requirements[] 21. I hereby certify/t~ha~,the~foregoing is true and correct to the best of my knowledge Commission Use Only Permit Number APl number IApproval date See cover letter ~-,/4:::~,~' 5 0- c::~.~_. ? - ~_. O ,.5"' c~ ;:~_ 0 /I for other requirements Conditions of approval Samples required [] Yes ~;NO Mud Icg requ~ed []Yes ~ No Hydrogen sulfide measures ,~Yes [] No D~rectional survey requ~rea ~ Yes [] No Required working pressure for BOPE []2M; 1-13M; 1-15M; F-ll0M; I-I15M; Other: Original Signed By by order of Form 10-401 Rev. 12-1-85 Submit in triplicate G-12A Proposed Sidetrack Program Current Status Well G-12A is a Iow PI producer that has been shut in since Nov. 1995. Existing Ivishak perforations will be squeezed in preparation for sidetracking with coiled tubing. The sidetrack will be conducted in two phases. Phase 1: Mill Window (planned for June 10-17, 1996.) Existing Ivishak perforations will be squeezed. A thru-tubing whipstock will be set on E- line and coiled tubing will be used to mill a window in the 7" liner at 10245' MD. Coiled tubing will then be rigged down and 1 to 2 weeks will lapse before drilling operations begin. Phase 2: Drill Sidetrack (planned for June 21-July 4, 1996) A 3 3/4" hole will be drilled with coiled tubing to 11,532' MD per the attached directional plan. An MWD will be used for directional control and surveys will be taken every 25 ft. No gyro will be run. Drilling Fluid Program: Phase 1: Seawater with Biozan sweeps. Phase 2: Solids Free FIo-Pro (8.8 ppg to provide approx. 500 psi overbalance) Logging Program: A Gamma Ray log will be used in geosteering while drilling and will be run over the entire drilled section. A GR/Induction log will be conveyed on CTE prior to running a liner. Liner / Completion Program: A 2 7/8", FL4S, L-80 liner will be run to TD and cemented with 90 cu.ft cement. A PBR at the top of the liner will be located in the existing 4 1/2" tubing tail at approximately 9230' MD. The liner will be perforated with CT conveyed thru-tubing guns. Well Control: BOPE schematics for the drilling and completion operations are attached. The full production tree will remain in place during all drilling and completion operations. RECEIVED MAY 3 0 ~996 Alaska 011 & G~s Cons, commission Anchorage TREE: McEVOY 6" WELLHEAD: McEVOY ACTUATOR: OTIS 9-5/8 D.V. PACKER 13-3/8", 72#/ft, L-80, BTRS 2574 2672 KOP: 2900 MAX ANGLE: 40° 7", 26#/ft, L-80, IJ4S TUBING TUBING ID: 6.276" CAPACITY: 0.0382 BBL/FT TOPOFI 9212I 7" LINER 9-5/8", 47#/ft, L-80, BTRS I 9712 I~ Proposed top of Whipstock = 10234' G-12 Proposed Sidetrack KB. ELEV = 65.72 BF. ELEV = 37.17 SSSV LANDING NIPPLE (OTIS)( 3.813" ID) 2O94 SEAL ASSEMBLY (PBR) 9-5/8" PACKER (BAKER)(4.75"ID) 4-1/2", 12.6#/ft, TAILPIPE 4-1/2 ....X" NIPPLE (OTIS) (3.813" ID) 4-1/2 ....XN" NIPPLE (OTIS)( 3.725" ID) 4-1/2" TBG TAIL (ELMD) 9149 9169 9212 9245 9277 9266 I MARKER JOINT I 10259 Est. Top of Squeeze Cement = 10260 PERFORATION SUMMARY REF: LOG: BHCA 7/8/81 SIZE SPF INTERVAL OPEN/SQZ'D 3-3/8 6 10292'-10302' Open 3/10/95 2-7/8 8 10322-10358 Squeezed 2-7/8 8 10380-10396 Squeezed 3-3/8 4 10396-10448 3-3/8 4 10456-10466 3-3/8 4 1 0470-10480 Open/11-12-92 PBTD I 107021 %%% % % ',. % ',, ,., % 3 3/4" Open Hole 7", 26#/ft, L-80, BTRS I 10745 TREE: McEVOY 6" WELLHEAD: McEVOY ACTUATOR: OTIS 9-5/8 D.V. PACKER 13-3/8", 72#/ft, L-80, BTRS '.12 Proposed Completion KB. ELEV = 65.72 BF. ELEV= 37.17 2574I 2672 I -- SSSV LANDING NIPPLE (OTIS)( 3.813" ID) 2O94 KOP: 2900 MAX ANGLE: 40° 7", 26#/ft, L-80, IJ4S TUBING TUBING ID: 6.276" CAPACITY: 0.0382 BBL/FT TOPOFI 9212J 7" LINER 9-5/8", 47#/ft, L-80, BTRS I 9712 I~ Est. Top of Cement = 10,000' Proposed top of Whipstock = 10234' SEAL ASSEMBLY I 9149 (PBR) 9-5/8" PACKER -- (BAKER)(4.75"ID) I 9169J (OTIS) (3.813" ID) 9212 4-1/2 XN"NIPPLE .... (OTIS)( 3.725" ID) 9245 4-1/2" TBG TAILI 9277 2 7/8" FL4S Liner (ELMD) I 9266 I MARKER JOINT I 10259 Est. Top of Squeeze Cement = 10260' PERFORATION SUMMARY REF: LOG: BHCA 7/8/81 SIZE SPF INTERVAL OPEN/SQZ'D 3-3/8 6 10292'-10302' Open 3/10/95 2-7/8 8 10322-10358 Squeezed 2-7/8 8 10380-10396 Squeezed 3-3/8 4 10396-10448 3-3/8 4 10456-10466 3-3/8 4 10470-10480 Open/11-12-92 PBTD I 10702 %%%%% ~%~%~%~%~ % % % % % % ,,,' % ..' % ..' % ..' % ,,"% ,,' %. 10,000 psi] Pack-Off [ Lubricator Well G-12A CT BOP for Fully Lubricated Drilling Operations Blind/Shear Blind/Shear Slip Ram Pipe Ram 3/8" RECEIVED MAY 3 0 1996, Alaska 0il & Gas Cons. Commission Anchorage I 3/4" or 2 3/8" '~' -~ 10,000 psiI Pack-Off I CT Sidetrack BOP for 2 7/8" Liner Running Operations Blind/Shear Slip Rams Slip Ram Pipe Ram bTnTmT~ ~ I 3/4" or 2 3/8" ]m~Tm ~ 2 7/8" bTmTrm -~r~~ I 3/4" or 2 3~8" RECEIVED MAY ~ 0 t996 Alaska Oil & Gas Cons. commission Anchorage G-12 4O0 8740 8760 8780 8800 8820 884O 8860 8880 890O 892O t~940 8980 9000 Vertical Section Path Distance (Feet) 600 800 1,000 1,200 1,400 1,600 1,800 2,000 Base Z- Angle @ K.O.= 37 deg M D: 10245 DL 1= 24 de~/lO0 87 des DL 2= 12 deg/lO0 ~ ,8, 87 DJ. 3= !0 deg/lO0 11532 TD Tot Drld:1287 ft Marker Depths @Oriq Wellbore Base Z-3 I 8,748Ift TVD 8,9701 8,9701ft TVD s,98oI 8,980Ift TVD ol 8,9801ft TVD . 10,2451ft MD Deprtr@KO . . 4~221 ft MD KO Pt M D New Hole Total MD ,TVD TD ,, , 10,245 1287 11~532 8~970 Build Rt deq/1 O0 MD (ft) 44.0 0.0 430 6.0' 50 0.0 150 10.0 75 -10.0 77 0.0 150 1.0 I Curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Curve 7 Curve 8 1,287 Drawn: 5/1/96 8:43 WP 6 -5,0o0 G-12 Plan 1,000 800 600 4OO 200 -2OO t I I I { I I I I -400 -4,800 -4,600 -4,400 -4,200 -4,000 -3,800 -3,600 -3,400 -3,200 -3,t X distance from Sfc Loc -600 O0 IWell Name G-12 I CLOSURE Distance 4,237 ft Az ~ 70 decj NEW HOLE E/W (X) N/S TD -4,237I State Plane 653,6171 5,969,3111 Surface Loc 657,854 5,969,307 Az Chc MD (ft) -2o.6 -12.0 430 -8.0 50 -10.0 150 0,0 75 0.0 77 -10.0 150 0.0 I Curve 11 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Curve 7 Curve 8 1,287 Drawn: 5/1/96 8:43 Plan Name: Case I WP 6 ,. WELL PERMIT CHECKLIST COMPANY WELLNAME/? PROGRAM:expI"I de;~red~servr3 wellboreseg [-}ann. disposal para req FIELD &'POOL ~' d..-/',,~/,.~'~::~, INIT CLASS ..z~,~P_,z,/' //-'<::::~/~/' GEOLAREA ~,~'_r'~,) UNIT# ' .,/~'_,~-,_~ ON/OFF SHORE ADMINISTRATION 1. Permit fee attached ...................... N 2. Lease number appropriate .................. N 3. Unique well name and number ................ N 4. Well located in a defined pool ................. N 5. Well located proper distance from drlg unit boundary .... N 6. Well located proper distance from other wells ........ N 7. Sufficient acreage available in ddlling unit .......... N 8. If deviated, is wellbore plat included ............. N 9. Operator only affected party .................. N 10. Operator has appropriate bond in force ........... N 11. Permit can be issued without conservation order ..... N 12. Permit can be issued without administ~'ative approval .... N 13. Can permit be approved before 15-day wait ......... I N ENGINEERING REMARKS GEOLOGY 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. Conductor string provided ................... Y N ? Surface casing protects all known USDWs .......... Y N CMT vol adequate to circulate on conductor & surf csg .... Y N CMT vol adequate to tie-in long string to surf csg ...... ~ N CMT will cover all known productive horizons ......... (,~ N Casing designs adequate for C, T, B & permafrost ...... ~ N Adequate tankage or reserve pit ................ (~ N If a re-drill, has a 10-403 for abndnmnt been approved .... Y N Adequate wellbore separation proposed ............ If diverter required, is it adequate ................ Ddlling fluid program schematic & equip list adequate .... ~ NN BOPEs adequate ......................... N BOPE press rating adequate; test to '~ ~'-c=,"~ psig. Choke manifold complies w/APl RP-53 (l~ay 84) .... '... Work will occur without operation shutdown .......... ~ N Is presence of H2S gas probable .............. /'V')~ N 30. Permit can be issued w/o hydrogen sulfide measures ..... Y NJ/) , 31. Data presented on potential overpressure zones ....... 32. Seismic analysis of shallow gas zones ............. ,,,Y N ' ' 33. Seabed condition survey (if off-shore) ........... ~. Y N 34. Contact name/phone for weekl)/progress reports .... ,,¢'... Y N leXploratory only] GEOLO_GY: ENGINEERING: COMMISSION: JDH ~ JDN TAB~ Comments/instructions: HOW/I~- A:~CORMS~:~3eklist 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. * ALASKA COMPUTING CENTER . ****************************** . ............................ * ....... SCHLUMBERGER ....... . ............................ COMPANY NAM~ : B. P. EXPLORATION WELL NAI~E : G-12A FIELD NAM~ : PRUDHOE BAY BOROUGH : NORTH SLOPE BOROUGH STATE : ALASKA API NUMBER : 50-029-20597-01 REFERENCE NO : 96295 LIS Tape Verification Listing Schlumberger Alaska Computing Center 25-NOV-1996 14:13 PAGE: **** REEL HEADER **** SERVICE NAME : EDIT DATE : 96/11/25 ORIGIN : FLIC REEL NAME : 96295 CONTINUATION # : PREVIOUS REEL : COMPIENT : B.P. EXPLORATION, PRUDHOE BAY G-12A, API #50-029-20597-01 **** TAPE HEADER **** SERVICE NAME : EDIT DATE : 96/11/25 ORIGIN : FLIC TAPE NAI~E : 96295 CONTINUATION # : 1 PREVIOUS TAPE : COFk4ENT : B.P. EXPLORATION, PRUDHOE BAY G-12A, API #50-029-20597-01 TAPE HEADER PRUDHOE BAY MWD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUFiBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SEC TI ON: TOWNSHIP: RANGE: FNL : FSL: FEL: FWL: ELEVATION (FT FROM MSL O) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD 1ST STRING 2ND STRING G-12A 500292059701 BP EXPLORATION SCHLU~iBERGER WELL SERVICES 25 -NOV-96 BIT RUN 1 ......... 96295 STRANDBERG/K PARKER BIT RUN 2 BIT RUN 3 12 liN 13E 2334 2367 65.70 65.70 37.20 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 3. 750 7. 000 10245.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center 25-NOV-1996 14:13 3RD STRING PRODUCTION STRING SLIM1 MWD GR DATA (FIELD MERGED). NO DEPTH SHIFTS WERE APPLIED. $ $ PAGE: **** FILE HEADER **** FILE NAME : EDIT .001 SERVICE ' FLIC VERSION · O01CO1 DATE ' 96/11/25 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE~ER: 1 EDITED~fERGEDMWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: 0.5000 FILE SU~mlARY LDWG TOOL CODE START DEPTH STOP DEPTH MWD 10220.0 10714.0 $ BASELINE CURVE FOR SHIFTS: NONE CURVE SHIFT DATA (Fi~ASURED DEPTH) BASELINE DEPTH .............. $ M~RGED DATA SOURCE LDWG TOOL CODE $ REMARKS: SLIM1 MWD GR DATA (FIELD MERGED). NO DEPTH SHIFTS WERE APPLIED. $ .......... EQUIVALENT UNSHIFTED DEPTH .......... BIT RUN NO. MERGE TOP MERGE BASE LIS FORMAT DATA LIS Tape Verification Listing Schlumberger Alaska Computing Center 25-NOV-1996 14:13 PAGE: ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 16 4 66 1 5 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 64 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 0 ** SET TYPE - CHAN** NAME SERV UNIT SERVICE API API API API FILE NUMB NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NIIMB SAMP ELEM CODE (HEX) DEPT FT NA O0 000 O0 0 1 1 1 4 68 0000000000 GRRWMWD AAPI NA O0 000 O0 0 1 1 1 4 68 0000000000 GRIN MWD AAPI NA O0 000 O0 0 1 1 1 4 68 0000000000 ROP MWD FPHRNA O0 000 O0 0 1 1 1 4 68 0000000000 ** DATA ** DEPT. 11715.000 GRRW. MWD -999.250 GRIN.MWD -999.250 ROP.MWD DEPT. 11500.000 GRRW.MWD 15.790 GRIN.MWD 15.790 ROP.MWD DEPT. 11000.000 GRRW. MWD 79.560 GRIN.MWD 79.560 ROP.MWD DEPT. 10500.000 GRRW. MWD 14.720 GRIN.MWD 14.720 ROP.MWD DEPT. 10220.000 GRRW. MWD 13.770 GRIN. MWD 13.770 ROP.MWD 45.900 61.700 25.700 34.100 -999.250 * * END OF DATA * * LIS Tape Verification Listing Schlumberger Alaska Computing Center 25-NOV-1996 14:13 PAGE: * * * * FILE TRAILER * * * * FILE NAME : EDIT .001 SERVICE · FLIC VERSION . O01CO1 DATE : 96/11/25 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .002 SERVICE . FLIC VERSION . O01CO1 DATE : 96/11/25 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: 0.5000 FILE S~Y VENDOR TOOL CODE START DEPTH STOP DEPTH 10220.0 11714.0 LOG HEADER DATA DATE LOGGED: SOFTWARE: SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (I4~MORY 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 ......................... GR GAM~IA RAY $ 06-JUL-96 5.5 5.5 REAL- TIME 11715.0 10220.0 11714.0 37.7 96.7 TOOL NUMBER ........... SLIM1 014 LIS Tape Verification Listing Schlumberger Alaska Computing Center 25-NOV-1996 14:13 PAGE: BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLERS CASING DEPTH (FT): 3. 750 10245.0 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 CIRCULATIONG TEMPERATURE : MUD FILTRATE AT (MT): MUD CAKE AT (MT): FLO-PRO 8.80 72.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: BIT TO GR: 27.85' DEPTH CORRECTION MADE AT 11450' (+17') DEPTH CORRECTION BASED ON CAMCO DEPTHS $ LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** .............................. TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 32 4 66 1 5 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 32 12 68 13 66 0 14 65 FT 15 66 68 LIS Tape Verification Listing Schlumberger Alaska Computing Center 25-NOV-1996 14:13 PAGE: 6 TYPE REPR CODE VALUE 16 66 1 0 66 1 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NUMB NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUM~ SAMP ELEM CODE (HEX) DEPT FT NA O0 000 O0 0 2 1 1 4 68 0000000000 GR RAW CPS NA O0 000 O0 0 2 1 1 4 68 0000000000 GR MWD AAPI NA O0 000 O0 0 2 1 1 4 68 0000000000 GR INT AAPI NA O0 000 O0 0 2 1 1 4 68 0000000000 ROP MWD F/HR NA O0 000 O0 0 2 1 1 4 68 0000000000 ROPSMWD F/HRNA O0 000 O0 0 2 1 1 4 68 0000000000 ROP5 INT F/HR NA O0 000 O0 0 2 1 1 4 68 0000000000 VDEPMWD FT NA O0 000 O0 0 2 1 1 4 68 0000000000 ** DATA ** DEPT. ROP.MWD 11715.000 GR.RAW -999.250 GR.MWD -999.250 GR.INT -999.250 50.200 ROPS.MWD 45.900 ROPS.INT 45.900 VDEP.MWD 8957.701 DEPT. 11500.000 GR.RAW 15.800 GR.MWD ROP.MWD 103.200 ROPS.MWD 61.700 ROPS.INT 15.790 GR.INT 15.790 61.700 VDEP.MWD 8973.900 DEPT. 11000.000 GR.RAW 79.600 GR.MWD ROP.MWD 70.300 ROP5.MWD 25.700 ROP5.INT 79.560 GR.INT 79.560 25.700 VDEP.MWD 8967.301 DEPT. 10500.000 GR.RAW 14.700 GR.MWD ROP.MWD 93.700 ROP5.MWD 34.100 ROPS.INT 14.720 GR.INT 14.720 34.100 VDEP.MWD 8916.600 DEPT. 10220.000 GR.RAW 13.800 GR.MWD 13.770 GR.INT 13.770 ROP.MWD -999.250 ROPS.MWD -999.250 ROPS.INT -999.250 VDEP.MWD 8774.301 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .002 SERVICE : FLIC VERSION · O01CO1 DATE : 96/11/25 MA_~REC SIZE : 1024 FILE TYPE : LO LAST FILE : LIS Tape Verification Listing Schlumberger Alaska Computing Center 25-NOV-1996 14:13 PAGE: **** TAPE TRAILER **** SERVICE NAFiE : EDIT DATE · 96/11/25 ORIGIN · FLIC TAPE NAME : 96295 CONTINUATION # : 1 PREVIOUS TAPE : COGENT · B.P. EXPLORATION, PRUDHOE BAY G-12A, API #50-029-20597-01 **** REEL TRAILER **** SERVICE NAME : EDIT DATE : 96/11/25 ORIGIN ' FLIC REEL NAF~ : 96295 CONTINUATION # : PREVIOUS REEL : COf~4ENT : B.P. EXPLORATION, PRUDHOE BAY G-12A, API #50-029-20597-01
