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205-040
Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:205-040 6.50-029-22429-01-00 PRUDHOE BAY, NIAKUK OIL Hilcorp North Slope, LLC 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 15790 13529 9155 13582 13580, 13593 14690 9208 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 40 - 120 40 - 120 1530 520 Surface 5092 10-3/4" Intermediate Production 13749 7-5/8" 37 - 13786 37 - 9412 6890 4790 Perforation Depth: Measured depth: 14410 - 15360 feet True vertical depth:9488 - 9486 feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# L-80 35 - 13644 35 - 9269 13582 9208Packers and SSSV (type, measured and true vertical depth) 4-1/2" Baker SABL-3 Packer Liner 13608 - 15790 9234 - 9461 13450 13890 12. Stimulation or cement squeeze summary: Intervals treated (measured): Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 64520434867172 00 0 180 0 0 Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Aras Worthington Aras.Worthington@hilcorp.com Authorized Name:Bo York Authorized Title: Authorized Signature with Date:Contact Phone:(907) 564-4763 Treatment descriptions including volumes used and final pressure: 13. Operations Manager Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP SPLUG 16. Well Status after work:Oil 5 Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured9461 Sundry Number or N/A if C.O. Exempt: n/a 4-1/2" AVA TRSV SSSV 1930 1912 Junk Packer Printed and Electronic Fracture Stimulation Data 5 Operations shutdown Change Approved Program 5 Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well 3.Address: 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 7.Property Designation (Lease Number):ADL 0034635 NIA NK-20A 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations Pulled Plug 3-1/2" x 3-3/16 x 2-7/8"2182 By Samantha Carlisle at 8:48 am, Jun 10, 2021 Digitally signed by Bo York DN: cn=Bo York, c=US, o=HIlcorp Alaska LLC, ou=Alaska North Slope, email=byork@hilcorp.com Date: 2021.06.09 19:42:21 -08'00' Bo York DSR-6/10/21 SFD 6/18/2021 RBDMS HEW 6/10/2021 MGR26JUL2021 ACTIVITYDATE SUMMARY 3/1/2021 ***WELL SI ON ARRIVAL*** SET 4-1/2" WHIDDON CATCHER (sn: wcs-42) ON TOP OF EVOTRIEVE PLUG @ 13418' MD PULLED BK-DGLV'S IN ST# 5 @ 7685' MD & ST# 6 @ 3148' MD SET BK-LGLV IN ST# 6 @ 3148' MD (see data tab) ***IN PROGRESS, JOB CONT. ON 3/2/21*** 3/2/2021 ***JOB CONT. FROM 3/1/21*** SET BK-OGLV IN ST# 5 @ 7685' MD (see data tab) PULLED 4-1/2" WHIDDON CATCHER @ 13418' MD (empty) PULLED 4-1/2" EVOTRIEVE PLUG @ 13418' MD ***JOB COMPLETE, WELL LEFT SI, DSO NOTIFIED OF STATUS*** 4/10/2021 Injectivity Test (MILL / UNDERREAM) Pumped 3.65 bbls 40* crude down Tbg and Tbg walked up to 4000 psi and lost 1 psi in 6 mins. Bled Tbg to 100 psi and got back ~3.5 bbls. DSO notified of well status per LRS departure. 4/13/2021 CTU #6 - 1.75" Coil Job Objective: Mill Cement/Debris to restore injectivity MIRU, MU BOT Venturi BHA, and RIH ***Job Continued on WSR 4/13/21*** 4/14/2021 CTU #6 - 1.75" Coil Job Objective: Mill Cement/Debris to restore injectivity Continue RIH with BOT Venturi BHA. Tag obstruction at 13,570' ctmd. Made several pumping passes over tag area, but did not make any hole. Pooh, recovered 2.5 gallons of fine sand, soft cement, and small flakes of composite. Make up Baker milling BHA. RIH w/3.80" 4 bladed junk mill, tagged at 13,570'. Worked mill from 13,570' to 13,599', mill stalled. Deployment Slv = 13,608'. Called OE and decision made to POOH and do a Venturi run for future slickline fishing. Perform 4k injectivity test while POOH with no luck. MU Venturi BHA and RIH. ***Job Continued on WSR 4-15-21*** 4/15/2021 CTU #6 - 1.75" Coil Job Objective: Mill Cement/Debris to restore injectivity Continue RIH with BOT Venturi BHA. Tag hard at 13,609 CTM, made 6 venturi passes over tag depth. POOH. Recovered approximately 2.5 gallons solids. Re-run 3.68" venturi and tag 13,605' CTM, work venturi 6 passes 13. POOH. Recovered 2 cups solids. RDMO CTU6. ***Job not complete, Slickline to run LIB and fish WRP debris*** 4/16/2021 ***WELL S/I ON ARRIVAL*** (mill / underream) RAN 3.50" LIB TO 13,595' SLM. (marks of deployment sleeve) RAN 2.70" LIB TO 13,599' SLM. (light marks of fill) ***JOB COMPLETE, READY FOR COIL*** 4/17/2021 CTU#6 1.75 Coiled Tubing Job Objective: Clean out wellbore to restore injectivity MIRU, MU BOT Milling BHA ***Job Continued on WSR 4/18/21*** Daily Report of Well Operations PBU NK-20A Daily Report of Well Operations PBU NK-20A 4/18/2021 CTU#6 1.75 Coiled Tubing Job Objective: Clean out wellbore to restore injectivity Continue RU, MU BOT Milling BHA, RIH and dry tag at 13,605' CTMD. Unable to get any mill work, stalled out 5 consecutive times adjusting rates/weights. Pooh to inspect mill. On surface w/BHA, mill shows minimal wear on outer edge. Make up BOT Milling BHA = 2.25" crayola mill. RIH w/Baker Milling BHA = 2.25" crayola mill. Dry tag 13,605' ctm. Begin milling and had a few stalls but able to slowly mill down to 13,625'. PUH while waiting on a load of KCL to arrive. ***Job Continued on WSR 4/19/21*** 4/19/2021 CTU#6 1.75 Coiled Tubing Job Objective: Clean out wellbore to restore injectivity Continue PUH while waiting on fluids. RIH and resume milling, started having repeated stalls at 13,620 and no hole progress. Drop 1/2" circ ball and underbalance well with diesel to ~8,500'. Pooh w/BHA. On surface 2.25" crayola mill has minimal wear. RDMO CTU6. ***Job completed, no injectivity established*** 5/16/2021 ***WELL S/I ON ARRIVAL*** (Drift / Tag for rate) RAN 2.80" CENT, 2.65" L.I.B. TO 13,564' SLM (Impression of possible fill / metal debris). RAN 2.50" SAMPLE BAILER TO 13,564' SLM (Unable to get by, bottom mangled & flapper pin broke). RAN 3.79" SWAGE, 3.70" L.I.B. TO 13,564' SLM (Similiar impression as before - 2.62" of base untouched). ***LDFN, WELL S/I & SECURED, CONTINUED ON 5/17/21 WSR*** NOTE: PICTURES FROM ALL RUNS SENT TO WELLS GROUP & ADDED TO WELL PICTURES FOLDER. 5/17/2021 ***CONTINUED FROM 5/16/21 WSR*** (Drift / Tag for rate) RAN VARIOUS CONFIGURATIONS ATTEMPTING TO SWAGE OUT AT 13,564' SLM (No luck - see log) RAN 1.78" SWAGE, 1-1/2" SAMPLE BAILER TO 13,590' SLM (Sample of coil millings, cement, & scale). ***LDFN, WELL S/I & SECURED, CONTINUED ON 5/18/21 WSR*** 5/18/2021 ***CONTINUED FROM 5/17/21 WSR*** (Drift / Tag for rate) BAIL ~4 GALS OF COIL MILLINGS / CEMENT FROM 13,590' SLM TO 13,594' SLM. ***LDFN, WELL S/I & SECURED, CONTINUED ON 5/19/21 WSR*** 5/19/2021 ***CONTINUED FROM 5/18/21 WSR*** (Drift / Tag for rate) RAN 2.30" G-RING TO 13,588' SLM, WORKED UP / DOWN TO CLEAN LINER WALLS. RAN 2.50" x 10' PUMP BAILER TO 13,566' SLM (Unable to pass / No recovery). BAIL ~3 GALLONS OF CEMENT SLURRY FROM 13,592' SLM TO 13,595' SLM. ***LDFN, WELL S/I & SECURED, CONTINUED ON 5/20/21 WSR*** Daily Report of Well Operations PBU NK-20A 5/20/2021 ***CONTINUED FROM 5/19/21 WSR*** (Drift / Tag for rate) RAN 2.25" x 10' PUMP BAILER TO 13,591' SLM (No recovery, broken flapper pin). TOOK 15 MINUTES TO JAR BAILER BY 13,564' SLM (Metal scrape the entire length). UNABLE TO PASS 13,569' SLM W/ 2.34" SWAGE, 2.25" L.I.B. (Impression inconclusive). BAIL ~1 GALLON OF CEMENT / CEMENT SLURRY FROM 13,591' TO 13,593' SLM. JOB INCOMPLETE, WILL RETURN TO CONTINUE BAILING AFTER MAINTENANCE. ***WELL S/I ON DEPARTURE, NOTIFIED DSO OF WELL STATUS*** 5/22/2021 ***WELL SI ON ARRIVAL*** RECOVERED 4 CUPS OF CEMENT SLURRY @ 13592' SLM w/ 10' x 1.75" P- BAILER (2 runs, unable to get deeper, solid metal marks on bailer btm both times) WORKED THROUGH RESTRICTION @ 13560' SLM w/ 2.31" TAPERED SWAGE. ATTEMPT TO WORK THROUGH RESTRICTION @ 13560' SLM w/ 2.60" TAPERED SWAGE, UNABLE TO PASS 13563' SLM. ***IN PROGRESS, JOB CONT. ON 5/23/21*** 5/23/2021 ***JOB CONT. FROM 5/22/21*** RAN 2.35" SWAGE TO RESTRICTION @ 13560' SLM, MADE 2 PASSES THROUGH WITH MINIMAL WORK & COULD NOT PASS AGAIN ON 3RD ATTEMPT UNABLE TO PASS 13566' SLM w/ 10' x 2.25" P-BAILER (metal marks from btm - 2' up recovery barrel, no solids recovered) RAN TANDEM 2.13" MAGNETS TO TAG @ 13588' SLM (magnet covered in metal shavings, no metal chunks recovered) ***JOB SUSPENDED, WELL LEFT SI, DSO NOTIFIED OF STATUS*** STATE OF ALASKA x ALASKA OIL AND GAS CONSERVATION COMMION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well Q Re-enter Susp Well 0 Other:Packer Squeeze RI 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 205-040 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory 0 AK 99519-6612 Stratigraphic 0 Service 0 6. API Number: 50-029-22429-01-00 7. Property Designation(Lease Number): ADL 0034635 8. Well Name and Number: MA NK-20A 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,NIAKUK OIL 11.Present Well Condition Summary: RECEIVED Total Depth: measured 15793 feet Plugs measured 14690 feet true vertical 9461 feet Junk measured 13580/13593 feet JUN 2 2 2016 Effective Depth: measured 14690 feet Packer measured 13582 feet true vertical 9466 feet Packer true vertical 9208 feet d C C Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"94#H-40 40-120 40-120 1530 520 Surface 5092 10-3/4"45.5#NT-8 39-5131 39-4185 4560 1730 Intermediate Production 13749 7-5/8"29.7#NT-80 37-13786 37-9412 6890 4790 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 14410-14430 feet 14490-14515 feet 14580-14585 feet 14585-14605 feet 14605-14610 feet 15030-15060 feet 15090-15140 feet 15200-15270 feet 15320-15360 feet True vertical depth: 9488-9485 feet feet 9477-9473 feet 9464-9464 feet 9464-9462 feet 9462-9462 feet 9481-9483 feet 9484-9485 feet 9487-9489 feet 9488-9486 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#L-80 35-13644 35-9269 Packers and SSSV(type,measured and 4-1/2"Baker SABL-3 Packer 13582 9208 true vertical depth) 4-1/2"AVA TRSv SSSV 1930 1912 12.Stimulation or cement squeeze summary: Intervals treated(measured): 13533'-13538',TOC IA-13294' Treatment descriptions including volumes used and final pressure: 85 Bbls 60/40 Methanol/Water,1064 Bbls Diesel,35 Bbls Fresh Water,8.1 15.8 ppg Class G Cement,4 Bbls 1%Slick KCL,2888 psi. A NI N E(i MAY 05-20r 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 172 180 4867 2043 645 J Subsequent to operation: Shut-In 1400 0 14.Attachments:(required per 20 AAC 25.070.25.071,a 25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory ❑ Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature N J Phone +1 907 564 4424 Date 6/21/16 Form 10-404 Revised 5/2015lam! �6 �T L p` 71/{i RB DMS bk., J U r( 2 2016 Submit Original Only • • m QoOo � o • N M N- co in U N o0 0 0 0 L coLa CO 6) M • LO LO CO COCO V 00 • N CO C)) CA O 00 x— CO C0 CO N r d N t7 N .1- 05) 030) 030) ▪ 1 1 1 1 1 1 H CO 0) CA N CO CO N ct CO CO N N V 6) CA 0) a) O N- Ln O r Ct) CD CD 10 C.) 4—, op N O Cy) I,- 0 l!') COCr CO M M 'Cr CO � Q U) CO F' Z CO 00000 of wco (90000 V Z J J J J = N 11) k N C(0 CSO (� ti CO CN cn O v Cr 0) _ CD x— U cssiO -60ML-6 M ✓ � 0) 10 CA of p (N 'Cr O C° CO o co V c c Z D)0 0 '7)• 000 U O LL p o rYZ Z Q W W W Q D a Z Z Z_ D U Cn d J J J H TRIS ' 4-1/16"5M CNN REQUIRES A SSSV. WELL WELLFEAD= 13-5/8"5M FMC -2 OA ANGLE>70°@--1 965%PARTE)TBG BELOW PKR @ ACTUATOR= BAKER 13582'-UNKNOWN HOW FAR IT EXTENDS.USE OKE. I I CAUTION BELOW THIS DEPTH. BF ELEV= 20.6" KOP= 1400' 0 1930' H 4-112"FES CP-2 TRSV NP,D=3.813" Max Angle= 102"@ 14253' 1972' —4-1/2"NS DREAMCATC w/NT SCRN(06/05116) Datum MD= 13635' 1 HES GAS UFT MANDRELS Datum TVD= 9200'SS ST MD TVT)—DEV TYPE VLV LATCH FORT DATE_ 6 3148 2977 39 TMFDX DOME BK 16 05/24/16 10-3/4"CSG,45.5#,NT-80,D=9.953" H 5132' --• 5 7685 5498 61 TMPDX SO BK 22 05/24/16 L 4 11424 7303 52 TMM'PDX DBK 0 10/08/13 Minimum ID = 2.37" 14475' 3 12838 8477 17 TMPDX DMY BK 0 10/08/13 TOP OF 2-718 LINER 2 13182 8811 12 TMFDX DMY BK 0 04/01/05 TOC SQZ(03/26/16) ---I "-13294' I-- "1 13447 9073 5 TMPDX DMY BK 0 09/09/08 *4 1,1, 'STA#1 =BB t4D PKR SQZ CEMENT1.1 :e, 13524' H4-112"FES X NP,D=3.813" 1 111 1111 TBG PUNCH(03/20/16) --j 13533'-13538' it 1111 111 i�1 13680' H FISH:MILLED/PUSHED RETAINER&CBP(05/23/16) PARTED TBG BELOW PKR -UNKNOWN —{ 1 � r 13582' —7-5/8"X 4-1/2"SABL-3 PKR HOW FAR FT EXTENDS(03/18/16) W/ANCHOR LATCH,D=3.875" 9 FISH-PARTIAL WRP(ELEMENTS,SLPS,(:OFFS) —{ ? ' t_13603' 1-14-112'HES X NP,ID=3.813" (ELEMENTS,SLPS,CAFES)-10/21/13 ESTIMATED TOP OF CEMENT — ^'13607 1 .-4 13608' 3.70"BKR DEPLOY SLV,D=3.00" ! ; 13621' —{4-112"HES X NP,D=3.813"(BEIiND PIPE) 1 1 13627' --!3-112"FES X NP,D=2.813" 4-1/2"TBG,12.6#,L-80,.0152 bpf,ID=3.958" 13642' / 1 -. �1�1� 111111 13642' H4-112"WLEG,D=4.00"(BEHIND PIPE) At., .1/11 3-112"LNR,8.81#,L-80 STL,_0087 bpf,D=2.992" --I 13657' 7'""1 1!1!1 13640' -I ELMD TT LOGGED 01/31/94(BEHIND PIPE) 0�1�1�. 1�1�1�1 13657' H3-1/2"X 3-3/16 XO,D=2.867" 1111 1111 111111. 1111111 BKR WHPSTOCK(04/04/05) H 13780' '.1111' 1111i1 M1 LOUT WIFDOW{NIC 20A} 13786'-13793' �1� X4111 RA TAG(04/04/05) H 13790' ,� 4, TOP OF 4-1/2"TBG 13825' 44,4 • 1 4-1/2"TBG,12.6#,L-80,D=3.958" 13834• '1'1'1/1/111111111.#11 14475' —{3-1/ifi"X 2-718" X0,D=2.44/" x.6.4 PBTD H 14108' sip 7-5/8"CSG,29.7#,NT-80,D=6.875" 14203' _ ' =L 14690' H2-718"CEP SET(03/08/07) PERFORATION SUMMARY 1 FU LOG: P YSROP/SGRDYEWR ON 04/16/05 #.1.1.V•11.1.#11. TIE-IN LOG: GEOLOGY PDC LOG �1�1�1�1�1�1�1�1�1�11 ANGLE AT TOP PERF: 850 @ 15030' ile Note.Refer to Production DB for historical perf data 3-3/16'LNR,6.2#,L-80 STL, — 14475' 1 SIZE SPF INTERNAL Opn/Sgz SHOT SQZ .0076 bpf,D=2.80" 2" 6 14410-14430 0 03/09/07 2" 6 14490-14515 0 03/09/07 A` r 6 14580-14605 0 03/09/07 FISTD H 15759' !� 2" 6 1$585-14610 0 03109/07 2-7/8"LINK,6.16#,L-80 STL, 0058 bpf,D=2.441" —1 15790' 2" 6 15030-15060 C 04/18/06 2" 6 15090-15140 C 04/18/06 2" 6 15200-15270 C 04/18/06 2" 6 15320-15360 C 04/18/06 DATE REV BY COMUENTS DATE REV BY COMMENTS MAKUK/NFT 01/14/94 INITIAL COMPETION 05/24/16 JD/JM) MILLED IA CMT/FISIt CMT RET/CBP(05/23/16) WH_L. MK-20A 04118/05 NORDIC1 CTD SIDETRACK(1+IK-20A) 05/31/16 NXW/JMD GLV G'O(05/24/16) MRMIT Pb. 2050400 03/21/16 JMG/JMD PULL DREAMCATC IER/PART 06/09/16 CJN/JMD SET DREAMCATCHER(06/05/16) API No: 50-029-22429-01 03/21/16 JMNVJMD GLV C/O(03/18/16) Sec.36,T12N,R15E,1487'FSL&724'FEL 03/21/16 DHS/JMDt SET C8P&&CMT RET-TBG M NCH(03/20/16) 03/28/16 A LMUMD PACKER SQZ(03/26/16) ] I BP Exploration(Alaska) 40 • L T a) z LL 8 c Cl) o fa (TS Z E 36W oN W J N U 70 N 3 w w O J s Lo c ce Z_ O —I .-or- 0 W Q 0) N a) D (n � � � W W CO a N = -O N YJ d N U J as = w 1- 0 1) O � v9 U) ra) < 2 = ( 0 mcO `o OT") (-V2,- C HO-N ImQ c U QVQ - O zwF- oiha p U c0 oD N C _ )Z � tiIOn d - • D s Q Z v a U) W W m O O O N O LL _ 41-3- _1 Z N `- o p -0 a) ol- a°i oN- o Qa0) 05 LL 0 H u m � o � l < C? 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A packer cement squeeze was performed on 03/25/16. A subsequent MIT-IA passed to 2500 psi on 4/22/16 proving two competent barriers. This well is now classified as Operable. Please note liquid packed annuli. Objective: IA Packer Squeeze 1. Coil Tubing: Packer Squeeze—DONE 2. Fullbore Pumping: MIT-IA—PASSED 3. Mill plugs and cement— DONE 4. RunGLVs—DONE 5. Set dream catcher sCAN$ED JUN 0 3 2016; Thanks, Jack Lau (Alternate:Adrienne McVey) Well Integrity Superintendent—BP GWO Alaska W: 907.564.5102 C: 907.943.0296 1 2o5 -010 2.512.v- WELL .512.vCELL LOG DATA LOGGED Co/3/2015 TRANSMITTAL M K BENDERS l II , CEI l9 ED PROACTIVE DIAGNOSTIC SERVICES, INC. MAY 15 2015 AOGCC To: AOGCC Makana Bender 333 W. 7th Ave Suite 100 SCANNED JUN 0 9 2015 Anchorage,Alaska 99501 (907] 793-1225 RE : Cased Hole/Open Hole/Mechanical Logs and/or Tubing Inspection[Caliper/ MTT] The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of: BP Exploration (Alaska), Inc. Petrotechnical Data Center Attn: Analisa Steger LR2 - 1 900 Benson Blvd. Anchorage, AK 99508 gancpdc@bp.com and ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West International Airport Road Suite C Anchorage, AK 99518 Fax: (907) 245-8952 1) Lea kPointTM Survey 13-Apr-15 NK-20A BL/ CO 50-029-22429-01 2) LeakPointTM Survey 14-Apr-15 M-04 BL/ CD 50-029-20105-00 Signed : Date : Print Name: PROACTIVE DIAGNOSTIC SERVICES, INC. 130 W.INTERNATIONAL AIRPORT RD SUITE C, ANCHORAGE, AK 9 518 PHONE: (907)245-8951 FAX: (907)245-8952 E-MAIL: P_DSANCHORAGE@MEMORYLOG.COM WEBSITE:WWW.MEMORYLOG.COM D\Archives\MasterTemplateFdes\Templates\Distnbution\TransmittalSheets\BP_Transmit docx · . Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. ~ ð.. Q - 0 Y D Well History File Identifier Organizing (done) o Two-sided "11/111111" 111111 RESCAN vzr{Olor Items: o Greyscale Items: DIGITAL DATA ~iskettes, No. d- O Other, Norrype: o Poor Quality Originals: o Other: NOTES: BY: ~ Date 5/ ;). c¡ 0 7 I Date D/a..cr D7 .:L X 30 = Iq () + Dateö/tJ/1/D7 Project Proofing BY: ~ Scanning Preparation BY: ~ Production Scanning Stage 1 70 (Count does include cover sheet) NO Page Count from Scanned File: BY: Page Count Matches Number in Scanning Preparation: ~ DateS-/d-C¡/07 If NO in stage 1, page(s) discrepancies were found: Stage 1 BY: Maria Date: Scanning is complete at this point unless rescanning is required. ReScanned BY: Maria Date: Comments about this file: o Rescan Needed 111111111111111I11I OVERSIZED (Scannable) o Maps: o Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) o Logs of various kinds: o Other:: mf ,;1111111I111111111 (Y\ r 151 J 5 = TOTAL PAGES f15' (Count does not include cover sJet~ M. () 151 I I \T 11111111/11111" II/ V YES YES 151 WVP NO 151 " 111111I/111/1111/ "111111I11111 "II/ 151 Quality Checked 1111/111/11I111111I 10/6/2005 Well History File Cover Page.doc • d; s BP Exploration (Alaska) Inc. y. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 July 6, 2011 Mr. Tom Maunder Alaska Oil and Gas Conservation Commission ['.. 0 333 West 7 Avenue �, �,, Anchorage, Alaska 99501 1L Subject: Corrosion Inhibitor Treatments of GPMA Niakuk Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPMA Niakuk that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Mehreen Vazir, at 659 -5102. Sincerely, Gerald Murphy BPXA, Well Integrity Coordinator or • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10-404) Niakuk Date: 05/15/11 Corrosion Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ WeN Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft na pal NK -01A 1780280 , 500292015601 P&A 3/9/91 NA NA NA NA NA NK -02A 1780790 500292018001 P&A 3/13/91 NA NA NA NA NA NK -03 1780940 500292035000 P&A 4/14/80 NA NA NA NA NA NK-04 1842000 500292121700 PM 4/14/96 NA NA NA NA NA NK -05 1850270 500292129000 PM 4/15/98 NA NA NA NA NA NK-06 1852780 500292148800 PM 4/15/98 NA NA NA NA NA NK -07A 2010630 500292241001 0.2 NA 0.2 NA 0.9 4/30/2011 NK-08A 2010290 500292249101 0.2 NA 0.2 NA 0.9 4/30/2011 NK-09 1941400 600292251800 2.1 NA 2.1 NA 17.0 4/30/2011 NK -10 1931840 600292242500 1.5 NA 1.5 NA 11.9 4/30/2011 NK -11A 2020020 600292278901 1.5 NA 1.5 NA 11.9 4/30/2011 NK -12C 2030650 500292241403 1.8 NA 1.8 NA 31.0 4/30/2011 NK -13 1981340 600292289300 2.3 NA 2.3 NA 22.1 5/4/2011 NK -14A 2060310 500292288801 1.8 NA 1.8 NA 17.0 6/4/2011 NK -15 1970320 600292274500 1.8 NA 1.8 NA 18.7 5/4/2011 NK -18 1940220 500292244700 2.5 NA 2.5 NA 20.4 5/4/2011 NK -17 1981850 500292270900 3 NA 3 NA 20.4 6/4/2011 NK -18 1931770 500292242100 2 NA 2 NA 17.0 5/8/2011 e, NK -19A 2010700 500292260701 1.8 NA 1.8 NA 15.3 5/8/2011 NK -20A 2050400 500292242901 2.1 NA 2.1 NA 13.6 6R/2011 / NK -21 1940860 500292248700 2 NA 2 NA 22.1 5/15/2011 NK -22A 2012280 500292240201 1.5 NA 1.5 NA 11.9 5/11/2011 NK -23 1940350 500292245500 3.6 NA 3.6 NA 20.4 5/10/2011 NK -25 1970680 500292278000 2.5 NA 2.5 NA 15.3 5/11/2011 NK -26 1940050 500292244000 2.9 NA 2.9 NA 17.0 5/11/2011 NK -27 1950210 500292254700 2.3 NA 2.3 NA 13.6 4/30/2011 NK -28 1960930 500292287800 Sealed Conductor NA Sealed Conductor NA NA NA NK -29 1981900 500292272400 1.7 NA 1.7 NA 10.2 4/30/2011 NK-38A 2042410 500292254001 3.1 NA 3.1 NA 13.6 5/8/2011 NK-41A 1971580 500292277801 9.1 NA 9.1 NA 54.0 6/9/2011 NK-42 1941080 500292249900 2 NA 2 NA 13.6 5/9/2011 NK-43 2010010 500292299800 1 NA 1 NA 5.1 5/9/2011 NK-61A 2060350 500292289301 14 NA 14 NA 110.5 5/15/2011 NK-82A 2030470 500292285201 1.3 NA 1.3 NA 13.6 5/4/2011 NK-65A 2050830 500292286901 1 NA 1 NA 8.5 5/8/2011 e e WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Librarian 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 September 6, 2007 RE: MWD Formation Evaluation Logs: NK-20A + PBl: AK-MW-3638021 NK-20A + PBl: Digital Log Images 50-029-22429-01,70 1 CD Rom sCANN.ED SEP 1 3 2007 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COpy OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Services Attn: Rob Kalish 6900 Arctic Blvd. Anchorage, Alaska 99518 BP Exploration (Alaska) Inc. Petrotechnical Data Center MB33 900 E. Benson Blvd. Anchorage, Alaska 99508 RE Signed: t11t--- Date r< ..... "';,', ",- 0,4, ","','" : ;,:;,[;' í 4 L:';ö J Oíl& ~ U:r.C-- ero -tHD ~ 1~-L(Od l:! 15903 -* ~py¥ l C( I"l-., DATA SUBMITTAL COMPLIANCE REPORT 5/2/2007 s,. G~~6 Permit to Drill 2050400 Well Name/No. PRUDHOE BAY UN NIA NK-20A Operator BP EXPLORATION (ALASKA) INC API No. 50-029-22429-01-00 MD 15790./' TVD 9461 , Completion Date 4/19/2005 Completion Status 1-01L Current Status 1-01L UIC N REQUIRED INFORMATION Mud Log No Samples No Directional SurveQes ) _._.._.._~- DATA INFORMATION Types Electric or Other Logs Run: MWR, DIR, GR, RES Well Log Information: (data taken from Logs Portion of Master Well Data Maint Logl Electr Data Digital Dataset Type Med/Frmt Number Name ~ D Asc Directional Survey 116 D Asc Directional Survey ¿ C Las 14526 ~ C Lis 1457~'f Induction/Resistivity 1457t&(LlS Verification i~C Lis 1457¡J"f Induction/Resistivity ¡¡.,( 1457(CfLlS Verification Log Log Run Interval OH / Scale Media No Start Stop CH 14542 15790 Open 13700 15175 Open 13480 14830 Case 13510 15790 Open 13510 15790 Open 13510 15175 Open e Received 5/4/2005 Comments IIFR 5/4/2005 IIFR PB1 3/22/2007 Coil Flag, GR, CCL 4/4/2007 LIS Veri, GR, ROP, FET 4/4/2007 LIS Veri, GR, ROP, FET 4/4/2007 PB1 LIS Veri, GR, ROP, FET 13510 15175 Open 4/4/2007 PB1 LIS Veri, GR, ROP, FET Well Cores/Samples Information: Name Interval Start Stop Sent Received Sample Set Number Comments . ADDITIONAL INFORMATION Well Cored? Y G Daily History Received? GN (J)N Chips Received? ..y I 1\, ~ Formation Tops Analysis Received? ~ Comments: Permit to Drill 2050400 MD 15790 TVD Compliance Reviewed By: DATA SUBMITTAL COMPLIANCE REPORT 5/2/2007 Well Name/No. PRUDHOE BAY UN NIA NK-20A Operator BP EXPLORATION (ALASKA) INC API No. 50-029-22429-01-00 9461 JJ:;;tion Date 4/19/2005 Completion Status 1-01L Current Status 1-01L UIC N Date: ~ t.( MI.¡ ~ 7 e it e - \VELL LOG TRANS1HITT AL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Librarian 333 West 7m Avenue, Suite 100 Anchorage, Alaska March 19, 2007 RE: MWD Formation Evaluation Logs: NK-20A & NK-20A PB1, AK-MW-3638021 1 LDWG formatted Disc with verification listing. API#: 50-029-22429-01 PLEASE ACK1~OWLEDGE RECEIPT BY SIGNL~G AND RETIJRl'oiL.~G A COpy OF TIIE TRANS1\UTT AL LETTER TO THE A TTEl'oiTION OF: Sperry Drilling Services Attn: Rob Kalish 6900 Arctic Blvd. Anchorage, Alaska 99518 BP Exploration (Alaska) Inc. Petro technical Data Center MB33 900 E. Benson Blvd. Anchorage, Alaska 99508 Date: i Þ··¡ (1 . ,/ ' /".f .'^- SIgned: C:/. Gl !JC6-04D j 14·~·9~! '~, ~ e e WELL LOG TRANSMITTAL ProActive Diagnostic Services, Inc. To: AOGCC Howard Okland 333 W. 7th Ave Suite 100 Anchorage. Alaska 99501 RE : Cased Hole/Open Hole/Mechanical Logs and / or Tubing Inspection(Caliper / MTT) The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of : ProActive Diagnostic Services,lnc. Attn: Robert A. Richey 130 West Intemational Airport Road Suite C Anchorage, AK 99518 Fax: (907) 245-8952 1) EDE Disk NK - 20A Coil Flag 0&Mar..o7 2) 3) 4) 5] 6] 7] /)0< -;:j - (fie) +t I L{ :)d~ Print Name: c A / (~ -€/[/L (1 J1 í {;Sh fA P /)1 í.J.W ,A kPr/! Signed: Date : & PRoAcTIVE DIAGNOSTIC SERVICES, INC., 130 W.INTERNATlONALAIRPORT RD SUITE C, ANCHORAGE, AK 99518 PHONE: (901)245-8951 FAX: (901)245-8952 E-MAIL: PDSANCHORAGE@MEMORYLOG.COM WEBSITE : W'ft/VV.MEMORYLOG.COM D:IMaster _ Copy ~ 00_ PDSANC-2OxxIZ _ W ordlDistributionlTransmittal_ SheetslTransmit~ Original.doc _ STATE OF ALASKA _ ALA. OIL AND GAS CONSERVATION COMMISS. REPORT OF SUNDRY WELL OPERATIONS D D [] . 1 . Operations Abandon 0 Performed: Alter Casing 0 Change Approved Program D 2. Operator BP Exploration (Alaska), Inc. Name: 3. Address: P.O. Box 196612 Anchorage, AK 99519-6612 7. KB Elevation (It): D Repair Well D Pull Tubing Uat. Shutdown 60 KB / 8. Property Designation: ADlO-034635 / 11. Present Well Condition Summary: Total Depth 15790 / 9461 , measured true vertical ~ ...r../s-Pl Plug Perforations Perforate New Pool Perforate 4. Current Well Class: Development ;1 Stratigraphic r Ht:CEIVED MAR 1 4 200! ^'so"", ffif.-R. StimulateD ~e",~Gas Cons. r.omm¡l' . WaiverD Time ExtensionD Anchora e ..Slon Re-enter Suspended Well D 9 5. Permit to Drill Number: 205-0400 r r Exploratory Service 6. API Number: 50-029-22429-01-00 / 9. Well Name and Number: NK-20A ; 10. Field/Pool(s): PRUDHOE BAY Field/ NIAKUK Oil Pool ' feet feet Plugs (measured) Junk (measured) None None Effective Depth measured 15759 / feet true vertical 9463.45 I feet Casing length Size MD TVD Burst Collapse Conductor 20" 94# H-40 Surface - 80' Surface - 80' 1530 520 Surface 10-3/4" 45.5# NT-80 40' 5132' 40' - 4186' 4230 2270 Production 7-5/8" 29.7# NT-80 38' 13784' 38' - 9410' 6890 4790 Liner 3-I/2"x3-3/18"x2-7/8" 8.81#/8.2#/8.18# l-80 13608' - 15790' 9234' - 9461' Perforation depth: Measured depth: 14410' -15360' True Vertical depth: 9488' - 9486' Tubing: (size, grade, and measured depth) Packers and SSSV (type and measured depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13. Prior to well operation: Subsequent to operation: 14. Attachments: Copies of logs and Surveys Run Daily Report of Well Operations Oil-Bbl 64 SHUT IN x 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Gary Preble Printed Name xi. ~/» ~ ,æLC,,-_ Signature RIG NAL Form 10-404 Revised 04/2006 - - 4-1/2" 12.6# l-80 Surface - 13642' 7 -5/8"X4-1/2" sabl-3pkr o o o 13582' o o o Representative Daily Average Production or Injection Data Gas-Me! Water-Bbl Casing Pressure 486 779 0 o 0 0 15. Well Class alter Droposed work: Exploratory r Development ;1 16. Well Status alter proposed work: Oil ;1 Gas r WAG r Tubing pressure 465 o Service r WDSPL r GINJ r WINJ r ISUndry Number or N/A if C.O. Exempt: Title Data Management Engineer Phone Date 3/13/2007 564-4944 k"'>/,.; RBDMS 8Ft MAR 1 6 2007 Submit Original Only e e NK-20A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY ~~= -""1 ..f~I__-:r.~_]lIUI__ _~_--i.Jrll'i~¡.¡m"r,mll~ i 3/7/20071 CTU #5. Set CIBP I Adperf. *** Job Continued on WSR 03/07/2007 *** RIH ~ithi I 12-718" CIBP. Tag liner top at 13,583'. Unable to enter liner. POOH. Indication on I I I aluminum entery guide confirming tagging liner top. Changed guide on CIBP from I i cone to bullnose. RIH. Land top of CIBP at 14,690' corrected depth. *** Job in I I progress*** ¡ ¡ í-·~····~·37sï2007F*;JÕb· coniiñüedfrõn:îà=:¡=üYWSR**;····Settc)p·õfCIBPai·1-4·,69O~õr':ect·Š(r·· ¡depth. PT to 3000 psi. POOH. RIH wI gun #1. Tag CIBP and correct depth to I bottom shot. PUH to depth of 14,610' bottom shot. Perf holes from 14,585'- 114,610'. POOH. RIH wI gun #2. Tag CIBP and correct depth to bottom shot. PUH ¡to depth of 14,605' bottom shot. Perf holes from 14,580'-14,605'. POOH. ***Job I in progress*** . . '37g/2Ò07f***':¡õbconi¡nušd'from'3=S=ÒYWSR*** RÎI-1 wI guns. Tag CIBP @ 14690; I ¡corrected depth and correct to bottom shot. Gun run #3 Perf 14,490' - 14,515' Gun i ¡run #4 Perf 14410'-14430' POOH freeze protecting CT, Freeze protected tubing w. I 138 bbls 60/40 Meth, well handed over to pad operator ***Job Complete*** I ~. . ,--,,_. "^"",,...., _...._...~.'"~_ ~_._"'_._,,__ _~*.___._.___~_·__··¥·,,__~··"_M· FLUIDS PUMPED BBLS 253 60/40 METH 51 DIESEL 105 1% KCL 409 TOTAL . STATE OF ALASKA . ALASKÄ L AND GAS CONSERVATION COM ION· E. C"EI\ lED WELL COMPLETION OR RECOMPLETION REPORT AND LOcf(. ........ _ !V' .. . MAY 1 7 l005 One Other 5. Date Camp., Susp., or Aband. 4/19/2005 6. Date Spudded 4/612005 7. Date T.D. Reached 4/15/2005 8. KB Elevation (ft): 60' 9. Plug Back Depth (MD+ TVD) 15759 + 9463 10. Total Depth (MD+ TVD) 15790 + 9461 11. Depth where SSSV set (Nipple) 1930' MD 19. Water depth, if offshore NI A MSL '~~!1i(h~f~;~"O" 12. Permit to Drill Number 205-040 13. API Number 50- 029-22429-01-00 14. Well Name and Number: PBU NK-20A 15. Field I Pool(s): Prudhoe Bay Field I Niakuk Pool 1a. Well Status: 1m Oil 0 Gas 0 Plugged 0 Abandoned 0 Suspended 0 WAG 20AAC 25.105 20AAC 25.110 o GINJ 0 WINJ 0 WDSPL No. of Completions 2. Operator Name: BP Exploration (Alaska) Inc. 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 4a. Location of Well (Governmental Section): Surface: 1487' NSL, 724' WEL, SEC. 36, T12N, R15E, UM Top of Productive Horizon: 1847' NSL, 984' EWL, SEC. 29, T12N, R16E, UM Total Depth: 279' NSL, 2031' EWL, SEC. 29, T12N, R16E, UM 4b. Location of Well (State Base Plane Coordinates): Surface: x- 721834 y- 5980031 Zone- ASP4 TPI: x- 728226 y- 5985865 Zone- ASP4 Total Depth: x- 729325 y- 5984330 Zone- ASP4 ----~~--~------_. 18. Directional Survey 1m Yes 0 No 21. Logs Run: MWD, DIR, GR, RES 22. Ft Ft 16. Property Designation: ADL 034635 17. Land Use Permit: 20. Thickness of Permafrost 1900' (Approx.) CASING SIZE WT. PER FT. 20" 94# 10-3/4" 45.5# 7-5/8" 29.7# GRADE H-40 NT-80 NT -80 L-80 CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTHTVD HOLE TOp BottOM Top BoTTOM SIZE CEMENTING RECORD Surface 80' Surface 80' 30" 260 sx Arctic Set (Approx.) 40' 5132' 40' 4186' 13-1/2" 1368 sx PF 'E', 375 sx Class 'G' 38' 13784' 38' 9410' 9-7/8" 520sxClass'G' 13608' 15790' 9234' 9461' 4-1/8"x3-3I4" 136 sx Class 'G' 3-112' x 3-3116" x 2-7/8' 8.81# 1 6.2# 1 6.16# 23. Perforations open to Production (MD + TVD of Top and Bottom Interval, Size and Number; if none, state "none"): 2" Gun Diameter, 6 spf MD TVD MD TVD 15030' -15060' 9481' - 9483' 15090' - 15140' 9484' - 9485' 15200' - 15270' 9487' - 9489' 15320' - 15360' 9488' - 9486' 26. Date First Production: April 25, 2005 Date of Test Hours Tested PRODUCTION FOR 5/14/2005 12.6 TEST PERIOD + Flow Tubing Casing Pressure CALCULATED + Press. 724 1 ,759 24-HoUR RATE AMOUNT PUllED 24. TUBING RECORD SIZE DEPTH SET (MD) PACKER SET (MD) 4-1/2", 12.6#, L-80 13642' 13582' 4-1/2",12.6#, L-80 13825' - 13834' 13825' 25, ACID, FRAC1'URE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) 2500' AMOUNT & KIND OF MATERIAL USED Freeze Protect with 20 Bbls of MeOH PRODUCTION TEST Method of Operation (Flowing, Gas Lift, etc.): Gas Lift Oll-BBl GAs-McF WATER-BBl 184 385 656 Oll-BBl 97 GAs-McF 202 CHOKE SIZE I GAS-Oil RATIO 38 2,088 Oil GRAVITy-API (CORR) WATER-BBl 344 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). Submit core chips; if none, state "none". "ëê¡~~;¡I7¡r;i'1 RBDMS BFl MAY 1 9 2005 None ,~J'~ç' ~~~1 G\~ Form 10-407 Revised 12/2003 CONTINUED ON REVERSE SIDE 28. GEOLOGIC MARKE. 29. .ORMATION TESTS Include and briefly summarize test results. List intervals tested, and attach detailed supporting data as necessary. If no tests were conducted, state "None". NAME MD TVD (From NK-20) Kuparuk None ..........-------........-..--------... 13749' 9375' ----...........----.......---- ------..---............----- 13834' 9459' 13862' 9485' 13891 ' 9508' 14166' 9531' 14230' 9520' 14365' 9495' 14785' 9468' 15320' 9488' 15793' 9461' CMFS BB2 BSB TOP BSB I BASE BB2 TOP BB2 CMFS DFS ESB FFS 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram. Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed. ~ ~ L.I fJ.41J~ Terrie Hubble" Io(?J1IlLq ~ PBU NK-20A 205-040 Well Number Title Technical Assistant Date O~ 1'7/ OS Permit No. I Approval No. INSTRUCTIONS Prepared By Name/Number: Drilling Engineer: Terrie Hubb/e, 564-4628 Ted Stagg, 564-4694 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 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. ITEM 4b: TPI (Top of Producing Interval). ITEM 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. ITEM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). ITEM 20: True vertical thickness. ITEM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). ITEM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). ITEM 27: If no cores taken, indicate "None". ITEM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/2/2005 00:00 - 02:00 2.00 MOB P PRE Prepare to move rig off of C-08. Scope down derrick. 02:00 - 02:15 0.25 MOB P PRE SAFETY MEETING. Pre-Rig move Safety meeting with SWS, Nordic, Tool service, Security, BP and CPS personnel. Review rig move plan, hazards and mitigation. 02:15 -11:30 9.25 MOB P PRE Move Nordic 1 Rig from C pad to SWS yard in Deadhorse via spine road. No problems. 11 :30 - 14:00 2.50 MOB P PRE Change out reels using Veco crane. Installed new long coiled tubing reel for deep well at Niakuk. 14:00 - 23:00 9.00 MOB P PRE Continue with rig move to Niakuk-20A. Move went well. Position rig in front of NK-20A well. 23:00 - 00:00 1.00 MOB N WAIT PRE Work platform had been removed from tree. Wait for DSM crew to install work platform on tree. Rig on standby. 4/3/2005 00:00 - 05:00 5.00 MOB N WAIT PRE Wait for DSM crew to rig up work platform on tree. Had trouble with bent bracket. Rig on standby. Spring forward 1 hour for daylight savings time at 0200 hrs. 23 hr day. 05:00 - 05:15 0.25 MOB P ¡PRE SAFETY MEETING. Review procedure, hazards and mitigation for backing over well. 05:15 - 05:30 0.25 MOB P PRE Back rig over well with no problems. 05:30 - 06:30 1.00 RIGU P PRE ACCEPT RIG AT 0530 HRS, 04/03/2005. Rig up trailers, tanks, berms and hardline. 06:30 - 09:00 2.50 RIGU P PRE NU BOPE. 09:00 - 20:00 11.00 BOPSUF P PRE TEST BOPE. Test witnessed by Jeff Jones of AOGCC. Choke manifold valves #3 and #16 failed and were repaired. HCR Failed, greased it and passed. Audible gas alarm failed, electrician repaired gas alarm. Hydril failed to test. 20:00 - 23:00 3.00 BOPSUF N RREP PRE Rig maintenance. Replaced Hydril element. Function tested. Failed pressure test. Functioned bag 10 times. Still failed pressure test. 23:00 - 00:00 1.00 BOPSUF N RREP PRE Rig maintenance. ND Hydril and change out element. 4/4/2005 00:00 - 02:00 2.00 BOPSUF P PRE Finish pressure 1 function test BOPE. 4000 psi. Sent BOPE test report to AOGCC. 02:00 - 04:00 2.00 RIGU P PRE Pull coil to injecter head, stab pipe, M/U CTC and pull test. Change out coil packoff. 04:00 - 06:30 2.50 RIGU P PRE Fill coil with 2% KCL water. Change out leaking Chiksan inside reel. Test inner reel valve. Pump dart at 3.0 bpm, 1000 psi. Dart on seat at 64.7 bbls. Jet stack and tree down to swab valve at 4 BPM to clean out any Hydril rubber. 06:30 - 08:00 1.50 WHIP P WEXIT CIO leaking coil packoff. Open well WH 275 psi. RIH with nozzel to 2550. WH Pressure 135 psi. Attempt to bleed off WH pressure. Circulate well thru choke 3.1 BPM @ 720 psi. No Returns. POH 0 surface pressure. Circulate across top of hole. 08:00 - 09: 15 1.25 WHIP P WEXIT M/U Sperry MWD BHA with 3.0" nozzle for depth control GR tie-in run. 09:15 - 11 :30 2.25 WHIP P WEXIT RIH 11 :30 - 14:00 2.50 WHIP P WEXIT Tie -in log correction +9'. Tubing scale masked GR character. 14:00 - 16:30 2.50 WHIP P WEXIT POH to surface. Static loss rate 40 bbl/ hr 16:30 - 18:30 2.00 WHIP P WEXIT LD MWD Tools. Install 3 PIP tags in Baker Gen II Whipstock, located 10' from top of whipstock. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/4/2005 18:30 - 18:45 0.25 WHIP P WEXIT SAFETY MEETING. Review procedure, hazards and mitigation for making up Baker 1 Sperry Whipstock setting BHA. 18:45 - 20:45 2.00 WHIP P WEXIT MIU Baker Gen II 4-1/2 x 7-5/8" Whipstock, Setting tool, Baker FAIV [set for 2.2 bpm], XO, 10 Jts 2-3/8" PH6 tubing, EQ Sub, Sperry MWD [ set for 1.6 bpm], Orienter and MHA. OAL = 407.29'. Carried high side scribe of whipstock up thru 10 jts of tubing to Sperry MWD. Double checked all scribes. Blocks were locked to prevent rotation of string. 20:45 - 23:15 2.50 WHIP P WEXIT RIH with Whipstock setting BHA. Circ. at 0.3 bpm, no returns. Correct to EOP flag at 13,000'. Added 6.3' to CTD depth, which included a +4 ft correction to flag depth, for pipe growth due to new pipe roundtrip after flag. 23:15 - 00:00 0.75 WHIP P WEXIT RIH to 13,805'. Clean hole, 17K down wt, 52K up wt. Pick up to 13,770' [top of whipstock] and get MWD data. MWD probe at 13,426 ft. Incl = 5.6 deg, AZ = 57 deg at that depth. Circ. 1.5 bpm, 150b psi, good data. TF = 112L. Orient to 66R TF, [124 AZ] RIH and position top of whipstock at 13,780'. RA tag at 13,790'. Increase pump to 2.7 bpm, 4000 psi, [2.2 bpm returns], to activate FAIV. stop pump. Bring pump up at 0.6 bpm, sheared and set whipstock at 3000 psi. with 88R TF. Top of whipstock set at 13,780' with 145 AZ tool face. Tag whipstock OK with 1000# OK. POH. 4/5/2005 00:00 - 02:45 2.75 WHIP P WEXIT POH with Baker FAIV whipstock setting BHA with Sperry MWD. Re-Flag coil at 13,000' EOP. POH. Stilllossing returns, 0.5 bpm. 02:45 - 03:15 0.50 WHIP P WEXIT UO MHA and Sperry tools. Stand back 5 stds of 2-3/8" PH6. Recover Baker FAIV setting tools. All OK. M/U 3" big hole nozzle with 6' 2-3/8" PH6 stinger and eTC. OAL = 8.1'. 03: 15 - 06:00 2.75 ZONISO P WEXIT RIH with big hole cementing stinger. Circ. at 1.5 BPM. 0.4 bpm fluid loss. Correct +4' at flag. 06:00 - 08:00 2.00 ZONISO P WEXIT Condtinue to RIH tag WS at 13786'. UP 10' flag pipe. RU cementers. Static loss rate 18 bph. 08:00 - 08:30 0.50 ZONISO P WEXIT PJSM for cementing WS and perforations, Subjects High Pressure. Spills, Slips, Bears etc. 08:30 - 09:00 0.50 ZONISO P WEXIT PT cement lines to 4000 psi. Mix cement 09:00 - 09:45 0.75 ZONISO P WEXIT Pump 5 H20, 18 bbl, 15.8 ppg, G cement, 5 bbl H20. Swap to rig to displace. With 2 bbl out nozzle. Lay in cement. POH to 12,400 safety. Circulate .5 blm with full returns. 09:45 - 10:40 0.92 ZONISO P WEXIT Shut in well pressure to 500 psi with .6 bbl. Hold for 10 min lost 50 psi. Pressure to 1000 psi. with 1.2 bbls. Hold for 10 min lost 100 psi. Pressure to 1500 psi. Hold for 5 min. No Loss. 10:40 - 12:30 1.83 ZONISO P WEXIT Circulate 30 bbl bio pill 3.1 bpm @ 1420 psi. Dn Wt 13 -14K. Wash out to WS. Wash up and down 3 times in 7-5/8" casing. Washed down to pinch point at whipstock at 13,786'. Full Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/5/2005 10:40 - 12:30 1.83 ZONISO P WEXIT returns. 12:30 - 14:30 2.00 ZONISO P WEXIT POH. Chase contaminated cement to surface. Full returns. 14:30 - 15:30 1.00 ZONISO P WEXIT MIU side jetting nozzle. Closed master valve and jetted stack clear of any cement. 15:30 - 16:00 0.50 STWHIP P WEXIT M/U Baker CTC. Pull/ Press test. 16:00 - 16:15 0.25 STWHIP P WEXIT SAFETY MEETING. Review procedure, hazards and mitigation for M/U milling BHA. 16:15-17:00 0.75 STWHIP P WEXIT M/U Baker 3.80" Window milling BHA with HC 3.80" diamond window mill and string reamer and extreme motor on 2 jts of PH6 with MHA. OAL= 81.81'. 17:00 - 19:25 2.42 STWHIP P WEXIT RIH with milling BHA #4. Circ at .3 bpm, full returns. Correct CTD by +8.21' @ 13,000' EOP Flag. Up wt check @ 13080' = 45k. Run-in wt = 19k. RIH to 13760'. 19:25 - 21 :20 1.92 STWHIP P WEXIT Swap well @ 2bpm to reconditioned used 8.6ppg flopro mud with 4% L-T & 12ppb K-G. 21 :20 - 21 :35 0.25 STWHIP P WEXIT Cement @ 1600psi compressive strength. RIH with milling BHA #4. Dry tag WS/Csg pinch pt @ 13785'. Wt check: Up = 41 k, down = 19k. Bring on pumps & retag WS/Csg pinch pt @ 13785'. Flag pipe & correct depth to 13785.6' (pinch pt CTD). 21 :35 - 23:00 1.42 STWHIP P WEXIT Start milling window with 2.7/2.7bpm 2600/2800psi, 1-2k WOB. Mill to 13787'. 23:00 - 00:00 1.00 STWHIP P WEXIT Mill window to 13788' with 2.7/2.7bpm 2600/2800psi, 2k WOB. 4/6/2005 00:00 - 01 :40 1.67 STWHIP P WEXIT Mill window to 13789' with 2.7/2.7bpm 2700/2900psi, 3k WOB. 01 :40 - 02:40 1.00 STWHIP P WEXIT Control mill window to 13790' with 2.6/2.6bpm 2700/2900psi, 2-3k WOB. 02:40 - 05:05 2.42 STWHIP P IWEXIT Control mill window to 13792' with 2.6/2.6bpm 2700/2900psi, 2-3k WOB. 05:05 - 06:00 0.92 STWHIP P WEXIT Control rnill window to 13793.5' with 2.6/2.6bpm 2700/2950psi, 1-2k WOB. Exit casing at 13,793'. 06:00 - 07:00 1.00 STWHIP P WEXIT Milled formation to 13,797'. Stacking weight. 07:00 - 08:30 1.50 STWHIP P WEXIT Back ream window. Clean window. Ream back to bottom. Dwn wt = 19K, 2.6 bpm, 2600 psi. 08:30 - 10:30 2.00 STWHIP P WEXIT Mill formation, 2.6 bpm, 2600 - 3100 psi, 6K WOB. Milled slow and steady to 13,803'. 10:30 - 12:45 2.25 STWHIP P WEXIT Ream window, 2.7 bpm, 2700-3100 psi, Ream up to 13780'. Ream down. Ream up to 13,770'. Up wt = 42K. Stop pump. RIH. Dwn Wt = 19K. RIH clean to 13,804'. Back ream up thru window clean. Window is good. Top of window = 13,786'. Bottom of window = 13,793'. 12:45 - 13:45 1.00 STWHIP P WEXIT POH for MWD build BHA. 2.7 bpm, 2800 psi. Full returns. Flag coil at 12,100' EOP. POH. 13:45 - 14:00 0.25 STWHIP P WEXIT Held kick while trip drill. Mill at 9200'. Alarms worked. Divert fluid to tiger tank. 14:00 - 15:15 1.25 STWHIP P WEXIT POH. 15:15 - 16:00 0.75 STWHIP P WEXIT Layout milling BHA. Mill and string mill were 3.80" go /3.79" no-go. 16:00 - 16:30 0.50 DRILL P PROD1 H2S RIG EVACUATION DRILL FOLLOWED BY PRE-SPUD SAFETY MEETING. Crew met at muster area. All accounted for. Well secured. Reviewed well plan with crew. Review procedure, hazards and Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/6/2005 16:00 - 16:30 0.50 DRILL P PROD1 mitigation for M/U MWD build BHA with 12 jts of PH6 tubing. 16:30 - 20:30 4.00 DRILL P PROD1 M/U SWS CTC. Pull 1 Press test. Was not able to RIH with 3.5deg motor pass the BOP stack. Thus M/U & scribe drilling BHA #5 with BHI 3.28deg motor & rebuilt HTC RWD 3-3/4" x 4-1/8" bicenter bit #2, 12 jts of 2-3/8" PH6 tubing spacer, Sperry MWD/GR, orienter & MHA. M/U injector. 20:30 - 22:45 2.25 DRILL P PROD1 RIH BHA #5. SHT MWD & orienter - OK. Correct CTD by +8.41' @ 12,100' EOP Flag. RIH to 13700'. 22:45 - 22:55 0.17 DRILL P PROD1 Orient TF to 80R with MWD @ +/-13250' (9degs incl). 22:55 - 23:05 0.17 DRILL P PROD1 RIH smoothly thru window without pumps & tag btm @ 13804'. 23:05 - 23:20 0.25 DRILL P PROD1 Drill to 13807' with 90-100R (HS TF for WS direction). TF flopped to LS. 23:20 - 00:00 0.67 DRILL P PROD1 Reorient TF to 100R. Getting gassy returns @ surface. Circ till mud cleans out. 4/7/2005 00:00 - 01 :35 1.58 DRILL P PROD1 Drill to 13845' with 100R TF, 2.55/2.55bpm, 3450/3700psi, 2k WOB & 15-30fph ave ROP. 01 :35 - 01 :45 0.17 DRILL P PROD1 Wipe clean to window. RBIH & lightly tag btm @ 13845'. 01 :45 - 04:10 2.42 DRILL P PROD1 POOH drilling BHA#5. Paint EOP flag @ 13200'. 04:10 c 05:15 1.08 DRILL P PROD1 OOH. Displace BHA to fresh water in anticipatión of wet tripping. SIB injector. R/B 6 stands of 2-3/8" PH6 tbg & UD BHA. Recovered ca. 1 bbl of fresh water while wet tripping. Called in wet trip to Field Environmental. 05:15 - 07:00 1.75 DRILL P PROD1 R/U HALCO sheaves for Gyro Slickline job. Meanwhile initialize GyroData tools. M/U 1.75" slick Memory Gyro BHA on slickline. Check Gyro. 07:00 - 09:00 2.00 DRILL P PROD1 RIH with Memory GyroData Gyro with 44' of 1.75" sinker bar on slickline. RIH at 120 fpm. Tag bottom and correct depth to 13845'. 09:00 - 10:00 1.00 DRILL P PROD1 Take 5 foot surveys off bottom. 10:00 - 12:00 2.00 DRILL P PROD1 POH with Gyro. 12:00 - 14:15 2.25 DRILL P PROD1 Layout Gyro, download memory Data. Gyro measured 136 azimuth on bottom with 40-45 deg build rate. Rig down Slickline unit. 14:15-15:00 0.75 DRILL P PROD1 Layout 10 jts of PH6 tubing. 15:00 - 15:15 0.25 DRILL P PROD1 SAFETY MEETING. Review procedure, hazards and mitigation for M/U MWD Build BHA. 15:15 - 16:15 1.00 DRILL P PROD1 M/U MWD Build BHA #6 with 3.28 deg motor and re-built Hughes bi-center Bit #3. OAL = 65.31'. 16:15 - 18:30 2.25 DRILL P PROD1 RIH with MWD build BHA. SHT, OK. RIH. Correct CTD by +6' @ 13,200' EOP Flag. RIH to 13650'. 18:30 - 20:15 1.75 DRILL P PROD1 Log down GR & tie-into Gelogy PDC log - Add 1.5' to CTD. 20:15 - 20:30 0.25 DRILL P PROD1 RIH without pumps & tag BOW @ 13793'. PUH & orient 3 clicks. RIH clean thru window & tag btm @ 13845'. 20:30 - 21 :00 0.50 DRILL P PROD1 Log up & MAD pass GR. Observe RA PIP tag @ 13788.5'. Confirmed window depths are TOWS = 13779', TOW = 13784', BOW = 13792'. 21 :00 - 21 :10 0.17 DRILL P PROD1 RBIH & orient TF to HS. P/U wt = 40k, Run-in wt = 17k, PVT = 322bbls, lAP = 250psi, OAP = 260psi. 21:10 - 22:20 1.17 DRILL P PROD1 Drill to 13870' with HS -10R TF, 2.5/2.5bpm, 3400/3650psi, 2.5k WOB & 25fph ave ROP. TF rolling left. 22:20 - 22:30 0.17 DRILL P PROD1 Orient @ btm - didn't get clicks. PUH to window & orient 1 click. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/7/2005 22:30 - 00:00 1.50 DRILL P PROD1 Drill to 13890' with HS-10R TF, 2.5/2.5bpm, 3400/3650psi, 2.5k WOB & 15fph ave ROP. 4/8/2005 00:00 - 00:55 0.92 DRILL P PROD1 Drill to 13906' with HS-10R TF, 2.5/2.5bpm, 3400/3650psi, 2.5k WOB & 20fph ave ROP. 00:55 - 02:15 1.33 DRILL P PROD1 Orient 1 click & drill to 13936' with 15-20R TF, 2.5/2.5bpm, 3400/3650psi, 2.5k WOB & 25fph ave ROP. 02:15 - 03:15 1.00 DRILL P PROD1 Orient 1 click & drill to 13962' with 25R TF, 2.5/2.5bpm, 3400/3700psi, 2.5k WOB & 30fph ave ROP. 03:15 - 03:45 0.50 DRILL P PROD1 Short wiper. Pump up survey & grab 1 click. 03:45 - 04: 15 0.50 DRILL P PROD1 Drill to 13989' with 30R TF, 2.5/2.5bpm, 3500/3700psi, 3k WOB & 50fph ave ROP. 04:15 - 05:00 0.75 DRILL P PROD1 Orient 1 click, drill & land build section @ 13997' with 30R TF, 2.5/2.5bpm, 3400/3700psi, 2.5k WOB & 50fph ave ROP. 05:00 - 05: 10 0.17 DRILL P PROD1 Drill to 14023' with 30R TF, 2.5/2.5bpm, 3500/3700psi, 2k WOB & 80fph ave ROP. PVT = 321bbls. 05:10 - 05:35 0.42 DRILL P i PROD1 POOH to P/U lateral BHA. 10k O/pull @ tail pipe (13636') - suspect 3.28deg motor bend is hanging up on TT. Attempt to work motor into tbg without luck. 05:35 - 05:40 0.08 DRILL N DPRB PROD1 Orient TF to 180M & finally work motor into TT. 05:40 - 07:30 1.83 DRILL P PROD1 Continue POOH with build BHA. Paint EOP flag @ 13400'. 07:30 - 08:30 1.00 DRILL P PROD1 UO build BHA. Bit#3 [ 4,4,1 ], 08:30 - 10:15 1.75 DRILL P PROD1 M/U Lateral RES BHA with 1.04 deg motor and used HC Bi-center Bit #4. Upload RES tool. OAL = 89.48'. 10:15-13:00 2.75 DRILL P PROD1 RIH with BHA #7, Lateral 1 RES BHA. Corrected +6 ft at flag. RIH clean thru window. RIH and tagged TD at 14,021'. 13:00 -14:10 1.17 DRILL P PROD1 Log RES MAD pass up at 600 fph. Log up across RA tag and casing at 70 fph. Log up to 13,740' at 600 fph to tie-in RA tag with original well. Added 6 ft to CTD. 14:10 - 14:30 0.33 DRILL P PROD1 RIH to TD. Tag bottom at 14,027'. 14:30 - 15:15 0.75 DRILL P PROD1 Orient TF to 120L. Pull up to window to orient. 8 clicks at window. RIH. 15:15 -16:30 1.25 DRILL P PROD1 Drilling lateral with RES. 2.5/2.5 bpm, 3400 - 4000 psi, 114L, 50fph. Drilled to 14061'. 16:30 - 17:00 0.50 DRILL P PROD1 Wiper trip to window. Some motor work. 17:00 - 18:15 1.25 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 4100 psi, 80L, 60 fph, 96.2 deg. Drilled to 14,100'. P/U wt = 40k, Run-in wt = 17k, PVT = 320bbls, lAP = 370psi, OAP = 320psi. 18:15 - 19:20 1.08 DRILL P PROD1 Drill to 14137' with 60L TF, 2.5/2.5bpm, 3400/3850psi, 2k WOB & 50fph ave ROP. Lost MP#1 - cannot switch to MP#2 due to wrong assignment. 19:20 - 19:55 0.58 DRILL N SFAL PROD1 PUH into csg @ 15fpm. Switch assignments & reset mud pump trip sets. RBIH to btm. 19:55 - 20:30 0.58 DRILL P PROD1 Drill to 14151' with 205R TF, 2.5/2.5bpm, 3500/3800psi, 4k WOB & 25fph ave ROP. Getting gassy returns @ surface. Suspect we swabbed-in gas bubble while PUH into csg without pumping. 20:30 - 20:45 0.25 DRILL N DPRB PROD1 SI well & observe 140psi WHP. Bleed off WHP & SI well again - observe no pressure increase or pit gain. 20:45 - 21 :00 0.25 DRILL P PROD1 Orient TF around to HS. P/U wt = 40k, Run-in wt = 11 k. 21 :00 - 21 :45 0.75 DRILL P PROD1 Drill to 14173' with 15-20L TF, 2.6/2.6bpm, 3650/3900psi, 4k WOB & 30fph ave ROP. PVT = 315bbls. W.O. availability of Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/8/2005 21 :00 - 21 :45 0.75 DRILL P PROD1 trucks for mud swap. 21 :45 - 22:20 0.58 DRILL P PROD1 Drill to 14200' with 20-35L TF, 2.6/2.6bpm, 3650/3900psi, 4k WOB & 50fph ave ROP. PVT = 315bbls. 22:20 - 22:35 0.25 DRILL P PROD1 Orient TF around to 60L. 22:35 - 23:00 0.42 DRILL P PROD1 Drill to 14210' with 65-75L TF, 2.6/2.6bpm, 3650/3900psi, 4k WOB & 25fph ave ROP. PVT = 314bbls. 23:00 - 23:30 0.50 DRILL P PROD1 Wiper trip clean to window. RBIH to btm. 23:30 - 23:45 0.25 DRILL P PROD1 Drill to 14216' with 90-100L TF, 2.6/2.6bpm, 3600/3900psi, 4k WOB & 35fph ave ROP. PVT = 313bbls. 23:45 - 00:00 0.25 DRILL P PROD1 Drill to 14225' with 75-85L TF, 2.7/2.7bpm, 3750/4050psi, 4k WOB & 35fph ave ROP. PVT = 312bbls. 4/9/2005 00:00 - 01 :05 1.08 DRILL P PROD1 Drill to 14257' with 55-85L TF, 2.7/2.7bpm, 3750/4050psi, 4k WOB & 35fph ave ROP. PVT = 311 bbls. 01 :05 - 01 :25 0.33 DRILL P PROD1 Orient TF around to 100L. 01:25-02:15 0.83 DRILL P PROD1 Drill to 14300' with 100L TF, 2.5/2.5bpm, 3600/3900psi, 4k WOB & 50fph ave ROP. PVT = 309bbls. 02:15 - 02:40 0.42 DRILL P PROD1 Orient TF around to 95R. 02:40 - 03:15 0.58 DRILL P PROD1 Drill to 14329' with 60-75R TF, 2.5/2.5bpm, 3600/3900psi, 4k WOB & 50fph ave ROP. 03:15 - 04:00 0.75 DRILL P PROD1 Drill to 14352' with 85-95R TF, 2.5/2.5bpm, 3600/3900psi, 4k WOB & 30fph ave ROP. PVT = 308bbls. 04:00 - 04:40 0.67 DRILL P PROD1 Wiper trip clean to window. RBIH to btm. 04:40 - 05:20 0.67 DRILL P PROD1 Drill to 14383' with 75-85R TF, 2.5/2.5bpm, 3700/4050psi, 3k WOB & 45fph ave ROP. 05:20 - 06:30 1.17 DRILL P PROD1 Orient 1 click & drill to 14404' with 95-100R TF, 2.5/2.5bpm, 3700/4050psi, 3k WOB & 40fph ave ROP. Meanwhile swap well to fresh FloPro mud. 06:30 - 07:00 0.50 DRILL P PROD1 Orient TF to 80R. 07:00 - 08:20 1.33 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 90R, 98 deg incl, 70 fph, Drilled to 14,488'. 08:20 - 08:45 0.42 DRILL P PROD1 Orient TF around to 80R again. 08:45 - 09:15 0.50 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 80R, 98 deg incl, 70 fph, Drilled to 14,510' 09:15 - 10:00 0.75 DRILL P PROD1 Wiper trip to window. Clean hole. RIH. 10:00 - 10:45 0.75 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 80R, 98 deg incl, 70-150 fph, Drilled to 14,590'. 10:45 - 11 :00 0.25 DRILL P I PROD1 Orient TF to 150R. 11:00-12:10 1.17 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 150R, 97 deg incl, 80-120 fph, Drilled to 14,660'. 12:10 - 12:45 0.58 DRILL P PROD1 Wiper trip to window. Clean hole. 12:45-13:10 0.42 DRILL P PROD1 Log GR tie-in at RA tag. Added 6' CTD. 13:10 - 13:30 0.33 DRILL P PROD1 RIH. Clean hole. Tagged bottom at 14,664'. 13:30 - 14:00 0.50 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 170R, 93 deg incl, 90 fph, Drilled to 14,700'. 14:00 - 14:10 0.17 DRILL P PROD1 Orient TF to 95L. 14:10 -14:45 0.58 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 95L, 91 deg incl, 110 fph, Drilled to 14,740' Printed: 4/25/2005 10:06:26 AM · Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/9/2005 14:45 - 15:00 0.25 DRILL P PROD1 Orient around to 120L. 15:00 - 15:40 0.67 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 95L, 89 deg incl, 90 fph, Drilled to 14,822'. 15:40 - 17:00 1.33 DRILL P PROD1 Wiper trip to window. Clean hole. Pull bit to 13,810'. Stop pump and did flow check. Well on slight flow, 0.2 bpm. Shut in choke and monitor WHP. SIWHP stable at 260 psi after 30 min. Eq. Mud Wt. = 9.2 PPG. ECD is greater than BHP. 17:00 - 17:30 0.50 DRILL P PROD1 RIH. Clean hole to bottom. Circ. at 2.5 bpm. 3400 psi free spin. 17:30 - 17:50 0.33 DRILL P PROD1 Orient TF to 40L. 17:50 - 18:20 0.50 DRILL P PROD1 Drilling lateral, 2.5/2.5 bpm, 3400 - 3900 psi, 40L, 89 deg incl, 100 fph, Drilled to 14,863'. 18:20 - 18:30 0.17 DRILL P PROD1 Orient TF to 90L. P/U wt = 40k, Run-in wt = 11 k, PVT = 279bbls, lAP = 460psi, OAP = 350psi. 18:30 - 18:45 0.25 DRILL P PROD1 Drill to 14870' with 90-100L TF, 2.6/2.6bpm, 3500/3800psi, 3k WOB & 50fph ave ROP. 18:45 - 20:00 1.25 DRILL P PROD1 Drill to 14942' with 75-45L TF, 2.6/2.6bpm, 3500/3800psi, 3k WOB & 55fph ave ROP. 20:00 - 20:10 0.17 DRILL P PROD1 Orient TF to 90R. Geo wants to level off instead of dropping as per planned trajectory. 20:10 - 20:50 0.67 DRILL P PROD1 Drill to 14985' with 90-105R TF, 2.6/2.6bpm, 3650/3900psi, 3k WOB & 65fph ave ROP. PVT = 277bbls. 20:50 - 22:00 1.17 DRILL P PROD1 Wiper trip clean to window. RBIH to btm. 22:00 - 22:20 0.33 DRILL P PROD1 Orient TF to 60R. PVT = 268bbls. 22:20 - 00:00 1.67 DRILL P PROD1 Drill to 15075' with 45-90R TF, 2.5/2.5bpm, 3475/3850psi, 4k WOB & 55fph ave ROP. PVT = 266bbls. 4/10/2005 00:00 - 00:40 0.67 DRILL P PROD1 Drill to 15080' with 70-90R TF, 2.5/2.5bpm, 3650/3800psi, 14k WOB. Drill into a hard spot @ 15080'. Wt stacking. PVT = 264bbls. 00:40 - 01 :00 0.33 DRILL P PROD1 Short 100' wiper. 01 :00 - 01 :50 0.83 DRILL P PROD1 Grind-on hard sport without any progress. Geo seeing up to 20% chert in 15050' sample. Decide to POH for bit change. PVT = 266bbls. 01 :50 - 02:15 0.42 DRILL P PROD1 Circ 9.9 ppg mud to the bit. 02:15 - 03:10 0.92 DRILL P PROD1 POOH drilling BHA while displacing wellbore to 9.9ppg mud. 03:10 - 06:30 3.33 DRILL N DPRB PROD1 10k O/pull @ tail pipe (13660') - BHA hanging up on n. Orient several times & attempt to work BHA into tbg without luck. Surge CT 3x with 300psi on the backside & pull up to 20k over without success. Orient TF to LS below window. SID pump. PUH above window with 140L TF & try to pull into TT - still no luck. Bleed off the lAP & OAP & try again with & without pressue surge on the backside - no luck. 06:30 - 07:00 0.50 DRILL N DPRB PROD1 Log GR tie-in at RA tag. Added 6' CTD. 07:00 - 07:30 0.50 DRILL N DPRB PROD1 Pull up and tag at 13665', top of BHA at 13575'. Work up to 65K up wt and pull thru. 07:30 - 10:30 3.00 DRILL P PROD1 POH for bit. 10:30 - 12:30 2.00 DRILL P PROD1 Layout BHA and download RES data. Bit pilot was ringed, [8,6,1]. 12:30 - 12:45 0.25 DRILL N DPRB PROD1 SAFETY MEETING. Review procedure, hazards and mitigation for cutting coil. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/10/2005 12:45 - 14:30 1.75 DRILL N DPRB PROD1 Cut off 200' of coil for coil fatigue life management. M/U SWS CTC. Pull/ Press test 14:30 - 15:30 1.00 DRILL N DPRB PROD1 M/U 3.80" milling 1 reaming BHA. OAL = 84.37'. 15:30 - 17:15 1.75 DRILL N DPRB PROD1 RIH with milling 1 reaming BHA #8. 17:15 - 18:00 0.75 DRILL N DPRB PROD1 Ream down from 13,500'. Saw 100 psi motor work at top X nipple and corrected CTD +4 ft to 13,524'. Ream down and had 1 00 psi motor work at 7-5/8 X 4-1/2" Packer at 13,582'. Ream down to 10' below tailpipe with no motor work. 1.5 bpm, 2100 psi, 230 rpm, 1 Of pm. Backream up thru taipipe, stall at 13,579' at top of packer. RIH and pull into it again. 2.0 bpm, 2600 psi. Backream at top of packer. RIH. Pull up to 13 18:00 - 19:15 1.25 DRILL N DPRB PROD1 Motor work while reaming X nipple above packer. Scale deposition in tubing created a drift problem for drilling BHA. Ream 13,510 -13,585'. Backream around 13530'-13518' area with 2.6/3250psi. Observe drop in pressure to 2800psi with no more motorwork. 19:15-19:30 0.25 DRILL N DPRB PROD1 RIH clean to 13720'. 19:30 - 22:00 2.50 DRILL N DPRB PROD1 POH clean with milling BHA. Observed no motorwork across tailpipe & Pkr area. 22:00 - 22:30 0.50 DRILL N DPRB PROD1 OOH. PJSM. SIB injector. R/B 1 stand of PH6 tbg. Pull up BHA & observe that BOT Navidrill motor is parted below the top connection - 4" below the top with ca. 3/8" of parted stator rubber sticking out (see attached pictures). Stall torque rating of motor = 672psi - suspect fatigue failure or metal defect. 14.12' of fish left in hole. OD ofTOF = 2-7/8". Review situation with ANC & decide to 1 st make an O/shot fishing run on slickline in the event that fish is still above window. 22:30 - 00:00 1.50 FISH X DFAL PROD1 W. O. BOT fishing tools & slickline unit. 4/11/2005 00:00 - 01 :45 1.75 FISH X DFAL PROD1 Continue W. O. BOT fishing tools & slickline unit. 01 :45 - 02:00 0.25 FISH X DFAL PROD1 Held PJSM & HNHM with SLB slickline crew & BOT fishing Rep. 02:00 - 03:00 1.00 FISH X DFAL PROD1 Spot SLB slickline unit & R/U sheaves & stuffing box. Bring fishing tools to floor. 03:00 - 03:30 0.50 FISH X DFAL PROD1 M/U fishing tool string with BOT 3-5/8" overshot dressed with 2-7/8" spiral grapple, SLB bait sub, oil jar, knuckle jt, long stroke spanks, 8' x 1-7/8" stems & rope socket (OAL - 36'). 03:30 - 05:45 2.25 FISH X DFAL PROD1 RIH fishing string on 0.125 slickline. Tag @ 13735' SLM. Tap down several times - not able to push down further. Decide to POOH & check O/shot. 05:45 - 07:30 1.75 FISH X DFAL PROD1 POOH with fishing string on 0.125 slickline. Observe +/-1 OOlbs increase in wt. 07:30 - 08:15 0.75 FISH X DFAL PROD1 Layout fishing tools, no marks on overshot to indicate taking fish. 08:15 - 08:45 0.50 FISH X DFAL PROD1 Rig down Slickline unit. 08:45 - 09:15 0.50 FISH X DFAL PROD1 M/U 3-5/8" Bower Overshot with 2.875" grapple and Muleshoe, 1.5 deg bent sub, 30 deg indexing tool, circ sub, hyd disc, 2 jts PH6, check valves and CTC. OAL = 77.13'. 09:15 - 11 :30 2.25 FISH X DFAL PROD1 RIH with 3-5/8" Overshot Fishing BHA with indexing tool. Circ at 0.3 bpm. 1300 psi. RIH clean to 13,710'. Up Wt = 40.5K. Dwn wt. = 17.5K. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/11/2005 09: 15 - 11 :30 2.25 FISH X DFAL PROD1 RIH clean thru window. 11 :30 - 12:40 1.17 FISH X DFAL PROD1 RIH with overshot at 30 fpm, circ. 1.2 bpm, 3000 psi, Ran thru winow with no wt loss. RIH to 13877'. Check up wt = 42K. RIH at 30 fpm, 17K down wt. Pushing fish in horizontal hole with 16K down wt. Stacked wt at 14,042'. 6K overpull. RIH stack full wt at 14045'. Pick up with 10K overpull. Orient 2 clicks [60 deg]. Sat down full wt at 14,045'. 12K overpull. Looks like we have fish. Orient 3 clicks. Stack full wt at 14045'. 12K overpull. Orient 3 clicks. Stack full wt at 14045'. 10K overpull. Orient 3 clicks. Stack full wt at 14045'. 8K overpull. Still have fish. 12:40 - 15:00 2.33 FISH X DFAL PROD1 POH with fish. 45K up wt in open hole. Pull up thru window and tailpipe with no overpull. POH. 15:00 - 15:45 0.75 FISH X DFAL PROD1 Recover 100% of fish in overshot. Layout fishing BHA. 15:45 - 16:00 0.25 BOPSUP P PROD1 Did weekly BOPE function test. OK. 16:00 - 17:10 1.17 DRILL P PROD1 M/U MWD RES Lateral BHA #10 with 1.04 deg HP motorand HC re-built Bi-Center Bit #6. Upload RES tool. OAL = 89.55'. 17:10 - 19:30 2.33 DRILL P PROD1 RIH with MWD RES Lateral BHA #10, SHT MWD and orienter, OK. RIH to 13720'. 19:30 - 19:40 0.17 DRILL P PROD1 PUH clean thru TT to 13500' above uppermost X-Nipple. 19:40 - 20:50 1.17 DRILL P PROD1 RBIH clean to btm tagged @ 15078'. Correct CTD to 15082'. Circ down new 8.6ppg mud to bit. 20:50 - 21 :20 0.50 DRILL P PROD1 PUH to 14545' for RES MAD pass. 21 :20 - 22:30 1.17 DRILL P PROD1 Log MAD pass from 14545' to 14400' to check for RES repeatability. Meanwhile swap the wellbore to fresh 8.6ppg mud. 22:30 - 22:50 0.33 DRILL P PROD1 PUH to 13840' for GR tie-in. 22:50 - 23:35 0.75 DRILL P PROD1 Log up GR & tie-into RA Pip tag. Subtract l' to CTD. 23:35 - 00:00 0.42 DRILL P PROD1 RBIH clean to btm. 4/12/2005 00:00 - 00: 15 0.25 DRILL P PROD1 Continue RIH clean to btm tagged @ 15080'. 00:15 - 00:20 0.08 DRILL P PROD1 Orient 2 clicks. PVT = 285bbls. Up wt = 40k, Down wt = 12k. 00:20 - 01 :00 0.67 DRILL P PROD1 Drill to 15089' with 90-110R TF, 2.5/2.5bpm, 3400/3700psi, 3k WOB & 14fph ave ROP. 01 :00 - 04:00 3.00 DRILL P PROD1 Orient 1 click & drill to 15096' with 120-135R TF, 2.6/2.6bpm, 3600/3800psi, 9k WOB. Wt stacking. Very hard drilling with occasional stalling. Drill into a hard spot @ 15096'. Geo seeing up to 30% chert, 2% pyrite, silicate cement & metal (bit) shavings in BU sample. Decide to POH & check bit. 04:00 - 04:30 0.50 DRILL P PROD1 Circ 9.9 ppg mud to the bit. 04:30 - 07:30 3.00 DRILL P PROD1 POOH drilling BHA while displacing wellbore to 9.9ppg mud. Pulled clean thru TT. 07:30 - 08:00 0.50 DRILL P PROD1 Pick up BHA to Bit. Bit ringed [ 8,8, 1/16"]. M/U Bit #7,3.75" DS49. Checked motor, scribe and orienter. 08:00 - 10:30 2.50 DRILL P PROD1 RIH with MWD RES LA T BHA #11. 1.04 deg motor and DS49 Bit. RIH thru window and open hole clean. Swap back to 8.8 ppg FloPro while RIH. 10:30 - 10:50 0.33 DRILL P PROD1 Orient TF to 60R. 10:50 - 12:20 1.50 DRILL P PROD1 Tag bottom at 15,096'. No depth correction. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/12/2005 10:50 - 12:20 1.50 DRILL P PROD1 Drilling lateral with RES. 2.5/2.5 bpm, 3500-4000 psi, 80R, 92 deg incl, 40 fph. Drilled to 15,136' 12:20 - 12:30 0.17 DRILL P PROD1 Orient TF to 150R. 12:30 - 13:50 1.33 DRILL P PROD1 Drilled to 15163' with RES MWD. 2.5/2.5 bpm, 3500 - 4000 psi. 13:50 - 14:00 0.17 DRILL P PROD1 PUH & orient TF to 170R. Up wt = 44k, Down wt = 12k, PVT = 288bbls. Pulling heavy @ +/-15130'. Looks like we penetrated into the HRZ @ +/-15100'. 14:00 - 14:25 0.42 DRILL P PROD1 Drill to 15173' with 170R TF, 2.5/2.5bpm, 3600/3900psi, 10k WOB & 25fph ave ROP. Stacking wt. 14:25 - 14:35 0.17 DRILL P PROD1 Short check trip to 15050' - had initial 1 Ok O/pull @ btm. RBIH clean to btm. TF flop to HS. Orient to 170R. 14:35 - 15:00 0.42 DRILL P PROD1 Drill to 15175'. Stacking wt & pulling heavy. 15:00 - 15:45 0.75 DRILL P PROD1 Wiper trip to window. Observe 10k O/pull @ 13990'. Continue wiping clean to above window. Discuss situation with ANC & agree to quit drilling & attempt to OH sidetrack with current BHA from +/-14575'. 15:45 -16:15 0.50 DRILL P PROD1 SI well & observe WHP increase as follows: Time WHP 0 -18 10 170 30 205 => Reservoir EMW = 9.2ppg. 16:15-17:00 0.75 DRILL P PROD1 RBIH. Tag @ 13929'. P/U & continue RIH clean to 14500'. 17:00 - 17:10 0.17 STKOH C PROD1 Orient TF to 150L. [Original TF @ proposed SIT pt = 90-100R.] 17:10 -17:15 0.08 STKOH C PROD1 Start troughing. TF flop to 135L. 17:15 - 17:45 0.50 STKOH C PROD1 Reorient TF to 150L. 17:45 - 22:45 5.00 STKOH C PROD1 Trough from 14575' to 14590' with 150L TF, 2.5/2.5bpm, 3450psi & @ 0.5fpm. 22:45 - 23:45 1.00 STKOH C PROD1 Time drill from 14,590' MD at 1fph for one foot. 23:45 - 00:00 0.25 STKOH C PROD1 Time drill from 14,591' MD at 2 fph 4/13/2005 00:00 - 01 :45 1.75 STKOH C PROD1 Control drill at 2 fph for 4 feet to 14,595' MD. 01:45 - 02:15 0.50 STKOH C PROD1 Control drill at 10 fph to 14,600' MD. - 2.5 / 2.5 bpm @ 3600-3700 psi 02:15 - 03:15 1.00 STKOH C PROD1 Control drill at 15 fph to 14,630' MD. - Pump up survey, no change from original wellbore. - Pump up another survey, confirm no kick off. 03:15 - 04:00 0.75 STKOH C PROD1 RIH to 15,100' MD to swap fluid to 9.9 ppg fluid (320 bbls on location). - Hole sticky/stacking up past 15,100' MD. 04:00 - 06:30 2.50 STKOH C PROD1 POOH, swapping well bore over to 9.9 ppg fluid. - OH in good condition from 15,100' MD. 06:30 - 08:30 2.00 STKOH P PROD1 OOH. PJSM. SIB injector. Download & UO EWR. UD bit - gauge 1/1/1. M/U OHST BHA #12 with used HC 3-3/4" R60ST bit # with brass cap, BHI 1.69deg motor & Sperry MWD/GR, orienter & MHA. M/U injector. 08:30 - 10:45 2.25 STKOH P PROD1 RIH OHST BHA #12. Function test MWD & orienter @ 14700' - OK. RIH clean thru window. Continue RIH circ @ min rate to 14570'. Add 5' ave correction to CTD. 10:45 - 11 :00 0.25 STKOH P PROD1 Orient TF to LS. 11 :00 - 14:45 3.75 STKOH C PROD1 Time drill from 14570' to 14585' with 178L TF, 2.5/2.5bpm, 3750psi & @ O.1fpm. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/13/2005 11 :00 - 14:45 3.75 STKOH C PROD1 Time drill from 14585' to 14586' @ 0.1 '/6mins. Time drill from 14586' to 14588' @ 0.1 '/3mins. Time drill from 14588' to 14590' @ 0.1 '/2mins. 14:45 - 15:15 0.50 STKOH C PROD1 Control drill to 14595' with 178L TF, 2.5/2.5bpm, 3650psi & @ 1 Of ph. Observe no motorwork. 15:15 - 16:00 0.75 STKOH C PROD1 Control drill to 14605' with 178L TF, 2.5/2.5bpm, 3650psi & @ 15fph. Observe no motorwork. 16:00-16:15 0.25 STKOH C PROD1 Control drill to 14625' with 178L TF, 2.5/2.5bpm, 3650psi & @ 20fph. Not seeing any motorwork. Survey does not show any depature or kick-off. Suspect brass cap may still be on bit. 16:15-16:45 0.50 STKOH C PROD1 RIH & set down @ 15127'. Spud bit on btm 3x to knock off brass cap. 16:45-17:15 0.50 STKOH C PROD1 PUH to 13820 for GR tie-in log. 17:15 - 17:25 0.17 STKOH C PROD1 Log GR & tie-into RA Pip tag (no correction). 17:25 - 17:30 0.08 STKOH C PROD1 PUH into TT & spin bit to knock off brass cap if it's still on. 17:30 - 18:30 1.00 STKOH C PROD1 RBIH to 14585' & orient TF to LS. Seeing more wt bubbles while RIH. 18:30 - 21 :30 3.00 STKOH C PROD1 Trough from 14570 - 14,590" MD, 2.5/2.5 bpm, 3650-3750 psi at 0.3 fpm. - Pressures approximately 200 psi more with the KWM in the hole. 21 :30 - 00:00 2.50 STKOH C PROD1 Time drill from 14,590' MD to 14,591' MD at 1 fph. Time drill from 14,591' MD to 14,594' MD at 2 fph. Time drill from 14,594' MD to 14,595' MD at 3 fph. 4/14/2005 00:00 - 00:30 0.50 STKOH C PROD1 Continue to time drill to 14,595' MD at 3 fph. 00:30 - 01 :45 1.25 STKOH C PROD1 Time drill from 14,595' MD to 14,607' MD at 8 fph at 2.5/2.5 bpm, 3700 psi. - Preliminary surveys indicate successful sidetrack. 01:45 - 02:16 0.52 STKOH C PROD1 Time drill from 14,607' MD to 14,614' MD at 16 fph at 2.5/2.5 bpm, 3750 psi. - Drilling from 178 - 172 LOHS. - Surveys show good indication of successful sidetrack. 02: 16 - 04:30 2.23 STKOH C PROD1 Backream sidetrack at 10 fpm. Ream sidetrack at 20 fpm. Orient to 133 LOHS. Drill ahead at 0.3 fpm to 14,625' MD. Orient to 99 LOHS. Drill ahead at 1.0 fpm to 14,651' MD. Orient straight up. Backream out at 10 fpm. Orient to 120 ROHS. RIH, pumps off. Backream out at 10 fpm. - Motor work up to 3950 psi. 04:30 - 07:00 2.50 STKOH C PROD1 POOH with sidetracking BHA. 07:00 - 08:30 1.50 DRILL C PROD1 OOH. PJSM. SIB injector. UO R60ST bit - gauge 1/5/1 with 3 broken cutters & some matrix loss. P/U RES tool. Upload & initialize EWR. M/U lateral BHA #13 with new HYC 3-3/4" DS49 PDC bit #9, BHI 1.04deg motor & Sperry MWD/GR-RES, orienter & MHA. M/U injector. 08:30 -11:15 2.75 DRILL C PROD1 RIH BHA #13. SHT @ 1100' - OK. Continue RIH below window to 13840'. 11:15-11:35 0.33 DRILL C PROD1 Log up GR & tie-into RA Pip tag (no correction). 11 :35 - 12:00 0.42 DRILL C PROD1 RIH to 14550'. 12:00-12:10 0.17 DRILL C PROD1 Orient TF to 140R. 12:10 - 12:20 0.17 DRILL C PROD1 RIH clean thru SIT pt to btm tagged @ 14651'. Meanwhile swap well back to 8.8ppg flopro mud. Bump up mud system to Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/14/2005 12:10 - 12:20 0.17 DRILL C PROD1 4% Lube-Tex & 12ppb Kla-Gard. 12:20 - 12:45 0.42 DRILL C PROD1 Log RES MAD pass from 14651' to 14590'. 12:45 - 13:00 0.25 DRILL C PROD1 Orient TF to 80L. Up Wt = 43.5k. Run-in wt = 14k. PVT = 260bbls. 13:00 - 13:15 0.25 DRILL C PROD1 Drill to 14664' with 90L TF, 2.5/2.5bpm, 3400/3700psi, 3k WOB & 60fph ave ROP. 13:15 - 13:50 0.58 DRILL C PROD1 Orient & drill to 14698' with 65-45L TF, 2.5/2.5bpm, 3400/3700psi, 4k WOB & 90fph ave ROP. 13:50 - 14:05 0.25 DRILL C PROD1 Orient TF to 90R. 14:05 - 14:20 0.25 DRILL C PROD1 Drill to 14726' with 90-130R TF, 2.5/2.5bpm, 3400/3700psi, 4k WOB & 90fph ave ROP. TF rolling right. 14:20 - 14:45 0.42 DRILL C PROD1 Orient TF around to 80A. 14:45 - 15:30 0.75 DRILL C PROD1 Drill to 14800' with 75-11 OR TF, 2.5/2.5bpm, 3400/3700psi, 4k WOB & 90fph ave ROP. 15:30 - 16:45 1.25 DRILL C PROD1 Wiper trip clean to window. RSIH clean thru SIT pt to btm. 16:45 - 17:05 0.33 DRILL C PROD1 Drill to 14818' with 90-110L TF, 2.5/2.5bpm, 3450/3700psi, 4k WOS & 90fph ave ROP. TF rolling left. 17:05 - 17:45 0.67 DRILL C PROD1 Orient 2 clicks & drill to 14857' with 60-80L TF, 2.5/2.5bpm, 3450/3700psi, 4k WOB & 90fph ave ROP. 17:45 - 20:00 2.25 DRILL C PROD1 Orient & drill to 14950' with 50-75L TF, 2.5/2.5bpm, 3500/3900psi, 6k WOB & 120fph ave ROP. 20:00 - 21:15 1.25 DRILL C PROD1 Wiper trip to window. Orient low side to enter ST. Continue to bottom. 21:15-22:00 0.75 DRILL C PROD1 Orient TF to 70R. 22:00 - 00:00 2.00 DRILL C PROD1 Drill ahead to 15,100' MD. - 3500 psi free spin - 2.5/2.5 bpm, 3900 psi. -10-14k WOS. 4/15/2005 00:00 - 01 :30 1.50 DRILL P PROD1 Wiper trip to the window. - OH in good condition. - Orient low side prior to entering ST. 01 :30 - 03:30 2.00 DRILL P PROD1 Drill ahead to 15,250' MD. - Free spin 3600 psi - 2.5 / 2.5 bpm, 4000 psi - 10-14k WOB. - 100 fph ROP. 03:30 - 05:00 1.50 DRILL P PROD1 Wiper trip to window. 05:00 - 05:15 0.25 DRILL P PROD1 Drill ahead to 15,270' MD. - Free spin 3650 psi - 2.5 / 2.5 bpm, 4000 psi - 10-14k WOS. - 100 fph ROP. 05:15 - 05:30 0.25 DRILL P PROD1 Orient TF to 90L. 05:30 - 06:40 1.17 DRILL P PROD1 Drill ahead to 15348'. - Free spin 3650 psi - 2.5 / 2.5 bpm, 4000 psi - 10-14k WOB. - 100-120 fph ROP. 06:40 - 06:50 0.17 DRILL P PROD1 Orient TF to 75R. Up Wt = 41 k. Run-in wt = 11 k. 06:50 - 07:30 0.67 DRILL P PROD1 Drill to 15400' with 90-105R TF, 2.5/2.5bpm, 3650/3900psi, 10k WOS & 60fph ave ROP. Start swapping well to new fresh 8.6ppg mud. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/15/2005 07:30 - 09:30 2.00 DRILL P PROD1 Wiper trip clean to window. RBIH. Orient TF to 135R & run thru SIT pt. RIH to btm. 09:30 - 09:40 0.17 DRILL P PROD1 Orient TF to 90R. 09:40 - 10:00 0.33 DRILL P PROD1 Drill to 15440' with 70-85R TF, 2.6/2.6bpm, 3500/3900psi, 6k WOB & 120fph ave ROP. Drilled into very clean water wet sand @ 15390'. 10:00 - 10:20 0.33 DRILL P PROD1 Orient TF to 60R. Geo wants to drill up aiming for 9400'sstvd @ 15800'. 10:20 - 10:45 0.42 DRILL P PROD1 Drill to 15495' with 50R TF, 2.5/2.5bpm, 3500/3700psi, 5k WOB & 90fph ave ROP. 10:45 - 10:55 0.17 DRILL P PROD1 Orient TF around to 60R. 10:55 - 11 :40 0.75 DRILL P PROD1 Drill to 15529' with 50R TF, 2.5/2.5bpm, 3500/3850psi, 5k WOB & 80fph ave ROP. 11 :40 - 12:10 0.50 DRILL P PROD1 Orient 2 clicks & drill to 15555' with 75-90R TF, 2.5/2.5bpm, 3500/3850psi, 5k WOB & 80fph ave ROP. 12:10 - 13:00 0.83 DRILL P PROD1 Wiper trip clean to window. 13:00 - 13:30 0.50 DRILL P PROD1 Log up & tie into RA Pip tag (+12' correction). 13:30 - 14:35 1.08 DRILL P PROD1 RBIH. Orient TF to 160R & run thru SIT pt. RIH to btm tagged 15564'. 14:35 - 14:50 0.25 DRILL P PROD1 Orient TF around to 90R. Up Wt = 41 k. Run-in wt = 11 k. PVT = 289bbls. 14:50 - 15:30 0.67 DRILL P PROD1 Drill to 15600' with 65-80R TF, 2.5/2.5bpm, 3500/3950psi, 5k WOB & 60fph ave ROP. 15:30 - 15:45 0.25 DRILL P PROD1 Orient TF to 65L. 15:45 - 17:45 2.00 DRILL P PROD1 Drill to 15700' with 75-95L TF, 2.5/2.5bpm, 3500/3950psi, 5k WOB & 60fph ave ROP. 17:45 - 19:30 1.75 DRILL P PROD1 Wiper trip to window. 19:30 - 23:00 3.50 DRILL P PROD1 Drill ahead to TO at 15,793' MD. -101L TF, - 2.5 I 2.5 bpm - 3600 / 4000 psi - 5-10k WOB - Sample 15,750' contains 80% chert. - Called TD for slow ROP. 23:00 - 00:00 1.00 DRILL P PROD1 Final wiper trip to window - 42k PU. 4/16/2005 00:00 . 01 :00 1.00 DRILL P PROD1 Tie in. Correct +2.5'. 01 :00 - 03:00 2.00 DRILL P PROD1 RIH to TO, 15,790' MD. . 11 k SO. - Stack up at 14,040', 15,300' MD - Displace well to 9.9 ppg KWM. 03:00 - 03:30 0.50 DRILL P PROD1 POOH to window. - OH in good condition. 03:30 - 06:00 2.50 DRILL P PROD1 POOH with lateral drilling BHA. - Paint window flag at 11,687' MD. 06:00 - 07:30 1.50 DRILL P PROD1 OOH. PJSM. SIB injector. Download & UO EWR. UD bit - gauge 2/2/1. 07:30 - 08:00 0.50 CASE P RUNPRD R/U to run liner. Cut off SLB eTC. M/U Baker CTC. Pull test to 35k & P/test to 3500 psi - OK. 08:00 - 09:30 1.50 CASE P RUNPRD M/U dart catcher. Load & launch wiper dart. Chase dart with mud & pig CT. Dart bumped on catcher @ 62.6bbls. 09:30 - 09:45 0.25 CASE P RUNPRD Held PJSM on M/U & RIH with liner. 09:45 - 12:45 3.00 CASE P RUNPRD M/U 2-7/8" STL rotating guide shoe, 1 shoe jt, float collar & Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/16/2005 09:45 - 12:45 3.00 CASE P RUNPRD landing collar. M/U 43jts of 2-7/8" STL 6.16# L-80, 2-7/8" pup & LSL sub. M/U 26jts of 3-3/16" 6.2# L-BO TCII, XO, 1 jt of 3-1/2" 9.3# L80 STL, X nipple & 3-1/2" pups. M/U Baker deploy sleeve & CTLRT. 12:45 - 15:45 3.00 CASE P RUNPRD RIH with liner (OAL - 2191.5') on CT. See flag @ 13772.4'. Check up wt - 49.5k, down wt - 15k. RIH smoothly thru window & continue RIH @ +1-50fpm thru SIT pt with wt bubbles. Set down @ 15570'. P/U, RBIH & bounce thru. RIH & set down @ 15720'. Work liner to TD tagged @ 15794' CTD. PIU @ 49.5k. RBIH @ 10.5k & retag TD 3x @ same depth. Correct CTD to 15790'. 15:45 . 16:40 0.92 CASE P RUNPRD PUH to ball drop position @ 15783'. Load 5/8" AL ball & circ with mud @ 2.5/2.5bpm, 3400psi. RBIH & set down 10k down on CTLRT. Slow down @ 47 bbls away. Ball on seat @ 56.9bbls. Pressure up to 4300psi & release CTLRT. P/U @ 45k & confirm release. 16:40 - 19:00 2.33 CEMT P RUNPRD Displace well to 9.9ppg K-NaCL brine. 19:00 . 20:30 1.50 CEMT P RUNPRD Mix Bio pill while waiting on cementers. Rig up cementers. 20:30 - 20:45 0.25 CEMT P RUNPRD PJSM for cement job. 20:45 - 21:15 0.50 CEMT P RUNPRD Batch mix 15.8 ppg "expanding" cement. 21:15·22:30 1.25 CEMT P RUNPRD Cement liner. - Pump 2 bbls fresh water. Pressure test lines to 4000 psi. - Follow fresh water with 28 bbls 15.8 ppg cement. Calculated volume at 25 bbls, leaving 2 bbls above TOL. 3 extra bbls pumped in the event of losses when the cement contacts the low pressure formation. - Zero in MM. - Pump 28 bbls 15.8 ppg cement. Clear lines. Zero in MM. . Load and pump dart. - Pump 31 bbls bio water at 2.9 bpm. - Follow with KCI at 2.75/2.75 bpm at 2400 psi. - Zero out MM at 48 bbls. - Slow rate at 60 bbls to 1 bpm. - Dart latched at 64.2 bbls. - Bumped the plug at 77.4 bbls (calculated at 76.9 bbls). - 29.4 bbls in the annulus - Pressure up to 500 psi, bleed off, checked floats. - No losses. 22:30 - 00:00 1.50 CEMT P RUNPRD POOH, replacing voidage. 4/17/2005 00:00 - 00:45 0.75 CEMT P RUNPRD Continue to POOH. 00:45 - 03:00 2.25 CEMT P RUNPRD Lay down BHA. PJSM for PU CSH. MU mill, motor, 37 stands CSH and MHA. 03:00 - 05:00 2.00 CEMT P RUNPRD RIH with cleanout assembly to 12000'. 05:00 - 14:00 9.00 CEMT P RUNPRD Waiting on cement to reach 500 psi compressive strength. - Circulating minimum rate. 14:00·14:45 0.75 CEMT P RUNPRD RIH clean circ @ 1.5bpm thru TOL. Tag up @ 13668' (Odegs incl). Suspect excess cmt must have settled into Inr. Check wt - Up wt = 47k, Down wt = 15k. 14:45 - 22:30 7.75 CEMT P RUNPRD Ease-in & mill hard cmt to 13711' with 1.5bpm/1.5bpm, 2450/2650psi, 1-3k WOB. . Getting cement cuttings @ surface. Printed: 4/25/2005 10:06:26 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/17/2005 14:45 . 22:30 7.75 CEMT P 22:30 - 00:00 1.50 CEMT P RUNPRD - Pumped 30bbls of hi-vis flopro pill & added biozan to viscosify milling fluid. - Pumping 5 bbls bio sweeps every 30 minutes. - Wiper tripping as neccessary RUNPRD Broke through cement at 13,721' MD. - Still milling cement at 13,721' MD. PU to wiper. On RBIH, ran clean through 13,721' MD to bottom. - Tag PBTD at 15,760' MD. - Pump sweep at TD. - Circulate down perf pill. RUNPRD POOH, laying in perf pill 1:1 to 13,800' MD. RUNPRD Continue to POOH. - Slow to 20 fpm, bring rate to 1.7 bpm from 13,800' - 13,500' MD. . Continue OOH at 80 bpm, at 1.7 bpm to surface. RUNPRD PJSM. Rack back CSH and lay down BHA - Drop 5/8" ball to open circ sub. RUNPRD Pressure test liner/lap to 2000 psi for30 minutes. -- Cement> 2000 psi compressive strength. 4/18/2005 00:00 - 00:45 00:45 - 02:30 0.75 CEMT P 1.75 CEMT P 02:30 - 04:30 2.00 CEMT P 04:30 - 05.:15 0.75 CEMT P Time Pressure Delta 0 2076 5 2036 40 10 2021 15 15 2010 11 20 2000 10 25 1992 8 30 1986 6 13:15 - 13:25 13:25 - 14:15 0.17 PERFOB P 0.83 PERFOB P Total bleedoff = 90 psi. Waiting on SLB perforators. Load perf guns into pipe shed. RIU safety jt & prep to M/U perf guns. PJSM on perforation job. M/U 16jts of 2" HSD 6spf 2006PJ guns & blanks with CBF firing system. Observe loose adjuster rig on BOT 2-1/8" Hyd disconnect (excellent catch by SLB operator). Fetch replacement disconnect from BOT. M/U lower MHA, 30 doubles of 1-1/4" CSH tbg & upper MHA. M/U injector. RIH with perforating BHA#16 circ perf pill @ min rate. Wt check @ 13500'. RIH into Inr @ 50fpm & tag PBTD @ 15753'. Pull to P/U wt & correct CTD to 15759.34' (PBTD as per CTD tally). LOWER1 PUH to ball drop postion @ 15373'. LOWER1 Pump 10bbl perf pill ahead. Load 1/2" AL ball. Blow ball into CT with 5bbls perf pill behind. PUH to 15365'. Chase ball @ 1.8bpm/2650psi. Slow to 0.95bpm/1030psi @ 45bbls. Ball on seat after 66bbls away. PUH very slowly & ramp up to 3100psi with btm shot @ 15360'. Observe guns fire with good pressure drop indication. Perforated interval = 15030' - 15060', 15090' - 05:15 - 06:45 1.50 PERFOB N wait LOWER1 06:45 - 08:00 1.25 PERFOB P LOWER1 08:00 - 08:15 0.25 PERFOB P LOWER1 08:15 - 09:00 0.75 PERFOB P LOWER1 09:00 - 09:30 0.50 PERFOB N SFAL LOWER1 09:30 - 10:40 1.17 PERFOB P LOWER1 10:40 - 13:15 2.58 PERFOB P LOWER1 Printed: 4/25/2005 10:06:26 AM · Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-20 NK-20 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 4/2/2005 Rig Release: 4/19/2005 Rig Number: 1 Spud Date: 4/2/2005 End: 4/13/2005 4/18/2005 13:25 - 14:15 0.83 PERFOB P LOWER1 15140', 15200' - 15270' & 15320' - 15360'. 14:15 - 15:05 0.83 PERFOB P I LOWER1 POOH with perf gun BHA @ 35fpm pumping down the CT @ I 0.56bpm/400psi. POOH to 13500'. Trip data indicate Obbls loss/gain while POOH to TOL. 15:05 - 15:20 0.25 PERFOB P LOWER1 SID pump & flowcheck well for 15 mins ~ well stable. 15:20 - 17:05 1.75 PERFOB P LOWER1 POOH with perf gun BHA @ 85fpm pumping down the CT @ 0.7bpm/350psi. Trip data indicate Obbls loss/gain while POOH from TOL to surface. 17:05 - 17:35 0.50 PERFOB P LOWER1 OOH. SID pump & flowcheck well for 30 mins ~ well stable. Meanwhile held PJSM for RIB 1-1/4" CSH. 17:35 - 19:00 1.42 PERFOB P LOWER1 SIB injector. UD MHAs & RIB 30 stds of 1-1/4" CSH tbg. 19:00 - 19:30 0.50 PERFOB P LOWER1 PJSM for laying down gunsn 19:30 - 21 :15 1.75 PERFOB P LOWER1 Lay down 16 perf guns. - Begin offloading pits. Offload guns. 21:15 - 21:30 0.25 WHSUR P POST PU injector. MU nozzle. 21 :30 - 22:30 1.00 WHSUR P POST RIH to 2500'. Circulate 25 bbls 100% MEOH. Lay in 20 bbls of MEOH (60/40) from 2500'-300'. Lay in 5 bbls 100% MEOH to surface. Close Master, 23.5 turns. 22:30 - 00:00 1.50 WHSUR P POST Pressure test N2 lines. Blow down reel with N2. Stand back injector. 4/19/2005 00:00 - 01 :00 1.00 WHSUR P POST Nipple down BOPE. NU and test tree cap. RIG RELEASE: 01:00 HRS 4/19/2005 Printed: 4/25/2005 10:06:26 AM Halliburton Sperry-Sun North Slopè Alaska BPXA NK-20A . Job No. AKZZ3638021, Surveyed: 15 April, 2005 Survey Report 29 April, 2005 Your Ref: API 500292242901 Surface Coordinates: 5980030.72 N, 721833.51 E (70020' 51.7303" N, 148011'56.3528" W) Grid Coordinate System: NAD27 Alaska State Planes, Zone 4 . Kelly Bushing Elevation: 60.00ft above Mean Sea Level 51::1.............~-5U., i;:U~U...LIN·G SeRVIces A Halliburton Company Survey Ref: svy4604 Halliburton Sperry-Sun Survey Report for NK-20A Your Ref: API 500292242901 Job No. AKZZ3638021, Surveyed: 15 April, 2005 North Slope Alaska BPXA Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Easti ngs Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (0/10Oft) 14542.58 98.330 155.490 9409.21 9469.21 5128.05 N 6980.63 E 5985363.15 N 728659.29 E 1309.97 Tie On Point 14570.00 97.850 157.690 9405.35 9465.35 5103.14N 6991.41 E 5985338.57 N 728670.81 E 8.134 1335.21 Window Point 14600.42 92.900 156.570 9402.50 9462.50 5075.24 N 7003.18 E 5985311.03 N 728683.40 E 16.680 1363.26 14629.11 87.010 153.410 9402.53 9462.53 5049.26 N 7015.30 E 5985285.41 N 728696.28 E 23.296 1390.20 14669.13 86.520 147.200 9404.79 9464.79 5014.57 N 7035.09 E 5985251.32 N 728717.08 E 15.541 1428.72 14705.58 89.690 145.970 9405.99 9465.99 4984.16 N 7055.14 E 5985221.53 N 728738.04 E 9.328 1464.41 . 14738.48 88.280 151.080 9406.58 9466.58 4956.12 N 7072.31 E 5985194.00 N 728756.03 E 16.110 1496.38 14770.09 88.020 154.250 9407.60 9467.60 4928.06 N 7086.82 E 5985166.38 N 728771.36 E 10.057 1526.48 14802.16 86.260 155.130 9409.20 9469.20 4899.10 N 7100.51 E 5985137.85 N 728785.90 E 6.134 1556.63 14832.15 85.990 151.790 9411.22 9471.22 4872.34 N 7113.88 E 5985111.49 N 728800.05 E 11.148 1585.01 14869.89 88.280 145.970 9413.11 9473.11 4840.09 N 7133.35 E 5985079.83 N 728820.47 E 16.553 1621.58 14904.28 89.520 141.920 9413.77 9473.77 4812.30 N 7153.59 E 5985052.65 N 728841.52 E 12.314 1655.54 14944.72 87.140 146.670 9414.95 9474.95 4779.48 N 7177.17 E 5985020.55 N 728866.06 E 13.133 1695.42 14976.31 86.430 150.020 9416.72 9476.72 4752.64 N 7193.72 E 5984994.21 N 728883.40 E 10.824 1726.10 15007.94 85.460 156.370 9418.96 9478.96 4724.49 N 7207.94 E 5984966.49 N 728898.45 E 20.259 1756.06 15040.79 85.460 156.720 9421.56 9481.56 4694.45 N 7220.97 E 5984936.85 N 728912.37 E 1.062 1786.52 15077.08 88.110 161.120 9423.60 9483.60 4660.66 N 7234.00 E 5984903.46 N 728926.39 E 14.136 1819.63 15109.47 89.520 163.410 9424.27 9484.27 4629.81 N 7243.86 E 5984872.92 N 728937.16 E 8.301 1848.41 15140.95 88.720 157.070 9424.75 9484.75 4600.21 N 7254.50 E 5984843.64 N 728948.67 E 20.297 1876.87 15171.80 87.220 153.020 9425.85 9485.85 4572.26 N 7267.50 E 5984816.09 N 728962.49 E 13.991 1905.82 15202.14 87.400 148.790 9427.27 9487.27 4545.78 N 7282.24 E 5984790.06 N 728978.00 E 13.939 1934.96 15236.83 88.280 143.330 9428.58 9488.58 4517.04 N 7301.58 E 5984761.90 N 728998.19 E 15.931 1968.97 . 15270.36 91.190 139.270 9428.73 9488.73 4490.88 N 7322.54 E 5984736.37 N 729019.92 E 14.896 2002.29 15302.90 90.930 135.040 9428.13 9488.13 4467.03 N 7344.66 E 5984713.19 N 729042.73 E 13.022 2034.79 15338.46 92.330 131.340 9427.12 9487.12 4442.71 N 7370.57 E 5984689.64 N 729069.35 E 11.121 2070.31 15368.83 90.840 134.160 9426.28 9486.28 4422.10 N 7392.86 E 5984669.71 N 729092.24 E 10.499 2100.65 15402.65 88.020 138.750 9426.62 9486.62 4397.60 N 7416.15 E 5984645.90 N 729116.25 E 15.927 2134.44 15435.44 88.550 141.040 9427.60 9487.60 4372.53 N 7437.26 E 5984621.47 N 729138.09 E 7.165 2167.09 15471.22 91.190 145.090 9427.68 9487.68 4343.94 N 7458.76 E 5984593.53 N 729160.42 E 13.511 2202.51 15511.94 95.150 148.260 9425.43 9485.43 4309.98 N 7481.09E 5984560.25 N 729183.75 E 12.449 2242.31 15551.63 95.150 153.370 9421.86 9481.86 4275.48 N 7500.36 E 5984526.33 N 729204.03 E 12.823 2280.33 15582.92 94.630 156.370 9419.19 9479.19 4247.26 N 7513.60 E 5984498.51 N 729218.10 E 9.696 2309.65 15614.16 94.980 157.420 9416.58 9476.58 4218.62 N 7525.81 E 5984470.26 N 729231.16 E 3.532 2338.53 15646.83 95.680 153.720 9413.54 9473.54 4189.01 N 7539.26 E 5984441.06 N 729245.48 E 11.478 2368.98 15677.64 96.210 148.610 9410.35 9470.35 4162.18 N 7554.04 E 5984414.67 N 729261.04 E 16.586 2398.41 29 April, 2005 - 15:37 Page 2 of 3 DrillQuest 3.03.06.008 Halliburton Sperry-Sun Survey Report for NK-20A Your Ref: API 500292242901 Job No. AKZZ3638021, Surveyed: 15 April, 2005 North Slope Alaska Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) (ft) (ft) (ft) 15713.62 94.270 147.200 9407.06 9467.06 4131.83 N 7573.07 E 5984384.89 N 729280.96 E 15742.96 94.710 141.390 9404.76 9464.76 4108.08 N 7590.14 E 5984361.67 N 729298.72 E 15790.00 94.710 141.390 9400.90 9460.90 4071.45 N 7619.39 E 5984325.92 N 729329.05 E All data is in Feet (US Survey) unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well. Northings and Eastings are relative to Well. Global Northings and Eastings are relative to NAD27 Alaska State Planes, Zone 4. The Dogleg Severity is in Degrees per 100 feet (US Survey). Vertical Section is from Well and calculated along an Azimuth of 135.000° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 15790.00ft., The Bottom Hole Displacement is 8638.97ft., in the Direction of 61.882° (True). Comments Measured Depth (ft) Station Coordinates TVD Northings Eastings (ft) (ft) (ft) Comment 14542.58 14570.00 15790.00 9469.21 9465.35 9460.90 5128.05 N 5103.14N 4071.45 N 6980.63 E 6991.41 E 7619.39 E Tie On Point Window Point Projected Survey Survey tool program for NK-20A Fro m Measured Vertical Depth Depth (ft) (ft) To Measured Vertical Depth Depth Survey Tool Description (ft) (ft) 0.00 13700.00 0.00 13700.00 9325.72 15790.00 9325.72 Good Gyro - GYD-GC-MS (NK-20) 9460.90 MWD Magnetic (NK-20APB1) 29 Apri/, 2005 - 15:37 Page 3 of 3 Dogleg Rate (0/100ft) 6.656 19.798 0.000 BPXA Vertical Section Comment 2433.33 2462.18 2508.77 Projected Survey . . DrillQuest 3.03.06.008 Halliburton Sperry-Sun North Slope Alaska BPXA NK-20APB1 . Job No. AKMW3638021, Surveyed: 12 April, 2005 Survey Report 29 April, 2005 Your Ref: API 500292242970 Surface Coordinates: 5980030.72 N, 721833.51 E (70020' 51.7303" N, 148011'56.3528" W) Grid Coordinate System: NAD27 Alaska State Planes, Zone 4 Kelly Bushing Elevation: 60.00ft above Mean Sea Level . !!5I=Ja............y-!!5ul! ORtL.L.ING SERViCes A Halliburton Company Survey Ref: svy4603 Halliburton Sperry-Sun Survey Report for NK-20APB1 Your Ref: API 500292242970 Job No. AKMW3638021, Surveyed: 12 April, 2005 North Slope Alaska BPXA Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastin9s Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (0/100ft) 13700.00 0.770 83.590 9265.72 9325.72 5642.24 N 6561.34 E 5985864.70 N 728224.97 E 649.90 Tie On Point MWD Magnetic 13779.00 0.360 44.270 9344.72 9404.72 5642.48 N 6562.04 E 5985864.96 N 728225.66 E 0.686 650.23 Window Point 13811.00 7.100 131.110 9376.63 9436.63 5641.25 N 6563.61 E 5985863.77 N 728227.26 E 22.154 652.21 13839.00 18.640 136.320 9403.88 9463.88 5636.86 N 6568.02 E 5985859.52 N 728231.80 E 41.381 658.43 13870.39 32.960 135.650 9432.07 9492.07 5627.07 N 6577.50 E 5985850.02 N 728241.57 E 45.628 672.05 . 13902.44 47.450 134.980 9456.48 9516.48 5612.42 N 6592.02 E 5985835.80 N 728256.52 E 45.230 692.69 13933.46 62.400 137.240 9474.26 9534.26 5594.14 N 6609.54 E 5985818.05 N 728274.57 E 48.557 717.99 13964.74 76.380 141.460 9485.25 9545.25 5571.96 N 6628.52 E 5985796.44 N 728294.20 E 46.430 747.10 13997.34 90.090 149.010 9489.09 9549.09 5545.43 N 6646.90 E 5985770.46 N 728313.35 E 47.905 778.85 14028.81 98.770 152.840 9486.66 9546.66 5518.04 N 6662.13 E 5985743.54 N 728329.39 E 30.128 808.99 14060.91 96.300 150.200 9482.45 9542.45 5490.08 N 6677.30 E 5985716.03 N 728345.39 E 11.210 839.50 14092.07 96.040 146.670 9479.10 9539.10 5463.68 N 6693.52 E 5985690.13 N 728362.37 E 11.294 869.62 14123.47 94.800 142.090 9476.13 9536.13 5438.28 N 6711.72 E 5985665.28 N 728381.32 E 15.048 900.46 14157.33 97.090 140.160 9472.62 9532.62 5412.06 N 6732.85 E 5985639.70 N 728403.22 E 8.825 933.94 14188.97 100.440 138.390 9467.80 9527.80 5388.37 N 6753.25 E 5985616.62 N 728424.31 E 11.944 965.12 14221.21 100.790 135.220 9461.86 9521.86 5365.27 N 6774.94 E 5985594.17 N 728446.67 E 9.725 996.79 14253.12 101.850 131.870 9455.60 9515.60 5343.72 N 6797.61 E 5985573.30 N 728469.97 E 10.817 1028.06 14284.56 100.350 129.050 9449.54 9509.54 5323.70 N 6821.08 E 5985553.99 N 728494.03 E 10.011 1058.81 14315.82 100.180 130.990 9443.97 9503.97 5303.92 N 6844.64 E 5985534.92 N 728518.16 E 6.131 1089.45 14345.92 100.000 133.460 9438.70 9498.70 5284.01 N 6866.58 E 5985515.66 N 728540.68 E 8.101 1119.05 14379.51 99.740 136.450 9432.94 9492.94 5260.63 N 6890.00 E 5985492.98 N 728564.78 E 8.804 1152.14 . 14411.68 98.500 139.270 9427.84 9487.84 5237.08 N 6911.31 E 5985470.07 N 728586.77 E 9.474 1183.86 14442.45 98.240 143.860 9423.36 9483.36 5213.24 N 6930.22 E 5985446.80 N 728606.39 E 14.782 1214.09 14475.33 97.800 148.080 9418.77 9478.77 5186.26 N 6948.44 E 5985420.38 N 728625.39 E 12.779 1246.05 14506.08 98.240 150.020 9414.48 9474.48 5160.15 N 6964.10 E 5985394.74 N 728641.82 E 6.409 1275.58 14542.58 98.330 155.490 9409.21 9469.21 5128.05 N 6980.63 E 5985363.15 N 728659.29 E 14.832 1309.97 14577.69 97.710 158.300 9404.31 9464.31 5096.08 N 6994.27 E 5985331.59 N 728673.87 E 8.119 1342.22 14608.59 98.150 155.840 9400.05 9460.05 5067.89 N 7006.19 E 5985303.77 N 728686.62 E 8.013 1370.58 14646.19 96.480 156.010 9395.26 9455.26 5033.84 N 7021.40 E 5985270.19 N 728702.84 E 4.464 1405.42 14677.18 93.480 157.250 9392.57 9452.57 5005.51 N 7033.65 E 5985242.22 N 728715.92 E 10.469 1434.11 14718.85 91.010 157.420 9390.94 9450.94 4967.09 N 7049.69 E 5985204.30 N 728733.09 E 5.942 1472.62 14753.21 90.400 152.310 9390.52 9450.52 4935.99 N 7064.28 E 5985173.65 N 728748.59 E 14.976 1504.93 14788.86 89.520 148.260 9390.54 9450.54 4905.04 N 7081.95 E 5985143.23 N 728767.17 E 11.625 1539.31 14825.59 87.930 144.740 9391.36 9451.36 4874.42 N 7102.21 E 5985113.23 N 728788.33 E 10.513 1575.28 14855.62 90.930 142.270 9391.66 9451.66 4850.29 N 7120.q.7 ¡; 5985089.63 N 728806.89 E 12.939 1604.98 29 April, 2005 - 15:35 Page 20f4 Dril/Quest 3.03.06.008 Halliburton Sperry-Sun Survey Report for NK-20APB1 Your Ref: API 500292242970 Job No. AKMW3638021, Surveyed: 12 April, 2005 North Slope Alaska BPXA Mea$ured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northin9s Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (O/100ft) 14889.80 91.190 140.330 9391.03 9451.03 4823.62 N 7141.43 E 5985063.61 N 728829.04 E 5.726 1638.94 14921.54 92.250 139.270 9390.07 9450.07 4799.39 N 7161.91 E 5985039.99 N 728850.22 E 4.722 1670.56 14954.52 92.690 138.390 9388.65 9448.65 4774.58 N 7183.60 E 5985015.84 N 728872.64 E 2.981 1703.43 14984.57 91.450 141.740 9387.57 9447.57 4751.56 N 7202.87 E 5984993.40 N 728892.58 E 11.880 1733.34 15014.82 91.890 144.560 9386.68 9446.68 4727.37 N 7221.01 E 5984969.75 N 728911.42 E 9.431 1763.27 . 15045.21 91.810 146.850 9385.70 9445.70 4702.28 N 7238.12 E 5984945.18 N 728929.27 E 7.536 1793.11 15075.55 92.420 150.020 9384.58 9444.58 4676.45 N 7253.99 E 5984919.83 N 728945.90 E 10.633 1822.60 15107.54 92.510 153.190 9383.21 9443.21 4648.33 N 7269.18 E 5984892.18 N 728961.92 E 9.904 1853.22 15142.74 92.330 156.370 9381.72 9441.72 4616.52 N 7284.17 E 5984860.83 N 728977.84 E 9.041 1886.31 15175.00 92.330 156.370 9380.41 9440.41 4586.99 N 7297.09 E 5984831.69 N 728991.63 E 0.000 1916.33 Projected Survey All data is in Feet (US Survey) unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well. Northings and Eastings are relative to Well. Global Northings and Eastings are relative to NAD27 Alaska State Planes, Zone 4. The Dogleg Severity is in Degrees per 100 feet (US Survey). Vertical Section is from Well and calculated along an Azimuth of 135.000° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 15175.00ft., The Bottom Hole Displacement is 8619.05ft., in the Direction of 57.846° (True). Comments Measured Depth (ft) Station Coordinates TVD Northin9s Eastings (ft) (ft) (ft) Comment . 13700.00 13779.00 15175.00 9325.72 9404.72 9440.41 5642.24 N 5642.48 N 4586.99 N 6561.34 E 6562.04 E 7297.09 E Tie On Point Window Point Projected Survey 29 April, 2005 - 15:35 Page 3 of4 DrillQuest 3.03.06.008 Halliburton Sperry-Sun Survey Report for NK-20APB1 Your Ref: API 500292242970 Job No. AKMW3638021, Surveyed: 12 April, 2005 North Slope Alaska BPXA Survey tool program for NK-20APB1 From Measured Vertical Depth Depth (ft) (ft) To Measured Vertical Depth Depth Survey Tool Description (ft) (ft) 0.00 13700.00 0.00 13700.00 9325.72 15175.00 9325.72 Good Gyro - GYD-GC-MS (NK-20) 9440.41 MWD Magnetic (NK-20APB1) . . 29 April, 2005·15:35 Page 4 of4 DrillQuest 3.03.06.008 " TREE! '" WELLHEAD 45.5#, ID'" 9.953" 4-1/2" TBG, 12.6#, L-BO, .0152 bpf, 10'" 3.958" 4-112" TBG, 12.6#, L-80, .0152 r PBTO 7-518" CSG, 29.7#, NT-80, to:= 6.875" 14203' i DATE . REV BY COMMENTS 01/14/94 ORIGINAL 02127101 SIScLG 09/26/01 RNlKAK CORRECIDNS 05/31102 JLJIKK ADPERF 03131103 BGGITLH NOSS UPDA TE 03/10105 MSE PROPOSED cm SIDETRACK -- " ST 6 5 4 3 2 1 13642' DATE REV BY COMMENTS 1930' MO 3148 7685 11424 12838 13182 13447 13524' 13582' NO 2975 5493 7291 8467 8800 9063 NOTES: 4-1/2" HES CP-2 TRSV NIP, ID'" 3.813" ! GAS LIFT DEV TYPE 39 HES TMPDX 62 HES TMPDX 52 HES TMPDX 54 HES TMPDX 53 HES TMPDX 5 HES TMPDX DATE BK BK BK BK BK BK 4-112" HES X NIP, 10:= 3.813" I 7-518" X4-112" SABL-3 PKRI WI ANCHOR LA TCH, ID:= 3.875" 13642' 13640' 4-112" TUBING TAIL 4.00" ELMO IT LOGGED 011:31/94 I 13825' 13831 ' 13834' 13836' I I PERM := 3.725" 4-1/2" TUB!NG TAIL ELMO IT LOGGED 10 := 4.00" WELL: PERMrrNo: API No: 50-029-22429-01 Sec. 36, T12N,R15E SF' Exploration . AOGCC Helen Warman 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 . DEFINITIVE Re: Distribution of Survey Data for Well NK-20A Dear Dear Sir/Madam: Enclosed is one disk with the *.PTT and *.PDF files. Tie-on Survey: Window / Kickoff Survey: Projected Survey: 14,542.58' MD 14,570.00' MD 15,790.00' MD (if applicable) 29-Apr-05 PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLlBURTON.COM OR SIGNING AND RETURNING A COpy OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Carl Ulrich 6900 Arctic Blvd. Anchorage, AK 99518 Date }'dJ/tv) Ä-Ù'\ '-" Signed 1Li ð£L¡ Please call me at 273-3545 if you have any questions or concerns. Regards, Carl Ulrich Survey Manager Attachment(s) ) (\ ~- - () '-I Ò . . AOGCC Helen Warman 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 DEFINITIVE Re: Distribution of Survey Data for Well NK-20APB1 Dear Dear Sir/Madam: Enclosed is one disk with the *.PTT and *.PDF files. Tie-on Survey: Window / Kickoff Survey: Projected Survey: 13,700.00' MD 13,779.00' MD 15,175.00' MD (if applicable) PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLlBURTON.COM OR SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Carl Ulrich 6900 Arctic Blvd. Anchorage,AK 99518 Signed ~ O)~I Date 7- (it) )J¡~- Please call me at 273-3545 if you have any questions or concerns. Regards, Carl Ulrich Survey Manager AUachment(s) 29-Apr-05 Å ~ \-- h \-1 '0 ~ ¡¡::;-;:::¡. c;-::II ;16 lU.. i I. ¡ I. !."" . ," ¡ " , ,~;' -'\ ~¡ [Lb· dll"ï.~¡, . ~LJ 'U... ' . íIT)iP lwlf í\ n !iP :1 n\, L. !..J _:-........i . / FRANK H. MURKOWSKI, GOVERNOR I 1 I ! 333 W. 7'" AVENUE. SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 AI/ASKA. OIL AND GAS CONSERVATION COMMISSION Mary Endacott CT Drilling Engineer BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612 Re: Prudhoe Bay NK-20A BP Exploration (Alaska) Inc. Permit No: 205-040 Surface Location: 1487' FSL, 724' FEL, SEC. 36, T12N, RI5E, UM Bottomhole Location: 177' FSL, 2143' FWL, SEC. 29, TI2N, RI6E, UM Dear Ms. Endacott: Enclosed is the approved application for permit to drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or approvals required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Please provide at least twenty-four (24) hours notice for a representative of the Commission t 'tness any required test. Contact the Commission's petroleum field inspector at 659 6 ager). DATED thiJ.-fdaY of March, 2005 cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. 18. Casing Program: Size Hole CasinQ 4-1/8" x 3-314" 3-3116' x 2-7/8" o Drill II Redrill 1 a. Type of work 0 Re-Entry 2. Operator Name: BP Exploration (Alaska) Inc. 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 4a. Location of Well (Governmental Section): Surface: 1487' NSL, 724' WEL, SEC. 36, T12N, R15E, UM Top of Productive Horizon: 1847' NSL, 984' EWL, SEC. 29, T12N, R16E, UM Total Depth: 177' NSL, 2143' EWL, SEC. 29, T12N, R16E, UM 4b. Location of Well (State Base Plane Coordinates): Surface: X-721834 y- 5980031 Zone- ASP4 16. Deviated Wells: Kickoff Depth: 13775 feet Maximum Hole Angle: 100 degrees SpecifiCations Grade CouplinQ LenQth L-80 TCIII STL 2340' . 1µ6Ã- ,:>/If,/U'iJ?S I' . STATE OF ALASKA. AL KA OIL AND GAS CONSERVATION COMMISS~CE'VED PERMIT TO DRILL . 20 AAC 25,005 MAR 1 5 Z005 11 b. Current Well Class 0 Exploratory II.. .. De..ve. 10. Q,m .QtQil ~D~f!t~ o Stratigraphic Test 0 Service Afikþlljlt>~Ønt3~Wè''Zõn'f¡'' 5. Bond: IS! Blanket 0 Single Well 11. Well ~lJi!INumber: Bond No. 2S100302630-277 PBU NK-20A 6. Proposed Depth: 12. Field I Pool(s): MD 15950 TVD 9380'ss Prudhoe Bay Field I Niakuk Pool 7. Property Designation: ADL 034635 8. Land Use Permit: 13. Approximate Spud Date: . March 31,2005 (' 14. Distance to Nearest Property: 9,000' 9. Acres in Property: 2560 WeiQht 6.2# 16.16# 10. KB Elevation 15. Distance to Nearest Well Within Pool (Height above GL): 60' feet NK-22A is 500' away 17. Maximum Anticipated Pressures in psig (see 20 MC 25.035) Downhole: 4654 Surface: 3720 / Søtting.Qepth .>...... Top· ....... '. > . .... Bottom MD TVD MD TVD (includinQ stage data) 13610' 9176' 15950' 9380' 136 sx Class 'G' 19. PRE$ENTV\fELL CONDITION SUMMARY (To be completec::tforRédriIlA"'DiRe.;entryOpèr~ti()ns) Total Depth MD (ft): Total Depth TVD (ft):l Plugs (measured): I Effective Depth MD (ft): IEffective Depth TVD (ft): 14215 9841 None 14108 9734 Casing Length Size Cement Volume MD Structural Conductor Surface Intermediate Production Liner Junk (measured): None TVD 80' 5092' 20" 10-3/4" 260 sx Arcticset (Approx.) 1368 sx PF 'E', 375 sx Class 'G' 80' 5132' 80' 4186' 14165' 7-5/8" 520 sx Class 'G' 14203' 9829' 20. Attachments IS! Filing Fee, $100 IS! BOP Sketch o Property Plat 0 Diverter Sketch IPerfOration Depth TVD (ft): 9374' - 9586' IS! Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis o Seabed Report IS! Drilling Fluid Program IS! 20 MC 25.050 Requirements Perforation Depth MD (ft): 13748' - 13960' 21. Verbal Approval: Commission Representative: 22. I hereby certify that the foregoing is true and correct to the best of my knowledge. Printed Name Mary E¡;¡pacott 1 Title CT Drilling Engineer Signature 7J7\j(!!) 41 t-((tel t·t/· /' Commission Use Only Permit To Drill 1 API Number: I Permit Apprm{al I 1 See cover letter for Number: ~t::)S.... to Yð 50- 029-22429-01-00 Date: 3/ ~ l./ 05 other requirements Conditions of Approval: Samp' 5 Required 0 Yes ~No Mud Log Required 0 Yes ~NO H rog Sulfide Measures g'Yes 0 No Directional Survey Required g"Yes 0 No 4000 (J (/;, Date: Contact Mary Endacott, 564-4388 Phone 564-4388 . A J Prepared By Name/Number. Date 5/11] C6" Terrie Hubble, 564-4628 '-- (1.J"".. ;,' \ (-~ \ N· A L J ¡.\ \ ) ,~. ¡< \ APPROVED BY THE COMMISSION Date ifl! . BP . NK-20A Sidetrack Revised 3-16-05 Mud Program: · Milling: 8.4 - 8.9 ppg brine with þiozan · Drilling: 8.5 - 9.9 ppg Flo Pro ( Disposal: · All drilling and completion fluids and all other Class rr wastes will go to Grind & fuject. · All Class I wastes will go to Pad 3 for disposal. Casing Program: · 3 3/16"x2 7/8"solidcementedlinercom~ 13,610'-15,950'. · The liner cement volume is planned to be~bls of 15.8 ppg class G. Casine/Liner Information 10 %" 45.5# NT-80 burst 5860, collapse 3220psi 75/8" 29.7# NT-80 burst 6890, collapse 4790psi Planned Liner 3 3/16" L-80 TCrr, 6.2#, Burst 8520 psi; collapse 7660 psi (hole size 4.125") 2 7/8" L-80 STL 6.16#, Burst 10570 psi; collapse 11170 psi (hole size 3.75") Well Control: · BOP diagram is attached. · Pipe rams, blind rams and the CT pack off will be pressure tested to 400 psi and to 4000 psi. ~ · The annular preventer will be tested to 400 psi and 2500 psi. Directional · See attached directional plan. Max. planned hole angle is 100deg. · Magnetic and inclination surveys will be taken every 30 ft. No gyro is planned. · Distance to nearest property line: 9,000 ft · Distance to nearest well (NK-22A) within pool: 500ft at TD Logging · MWD directional Gamma Ray and Resistivity will be run over all of the openhole section. Hazards · Max recorded HzS on pad is 200ppm on well NK-62a 1/05.// · 2000psi (4.6ppg) difference1ñBHP, between KOP, first 1000ft of hole to TD · Four mapped fault crossings with small throw, lost circulation is not expected. · Proximity of Kingak at landing is ~40ft TVD, but grows more shallow as you move North. · Proximity ofHRZ at breakover is ~20ft TVD. Reservoir Pressure · Res. press. is estimated to be 2475 psi at 9200'ss (5.1ppg EMW measured 1/6/05) at KOP and 4654psi at 9200'ss (9.7ppg EMW measured in NK-22A 1/3/05) at TD . · Max. surface pressure with gas (0.10 psi/ft) to surface is 3720psi. / TREE = Wa.LHEAD = ACTUATOR = KB. a.EV = BF. a.EV = KOP= I'v1ax Angle = Datum MD = Datum TVD = 4-1/16" 5M erN . 13-5/8" 5M FMC BAKER 60.8' 20.6' 1400' 64 @ 8400' 13635' 9200' SS NK-20 fSAÆTYNOTES: . 1930' H 4-1/2" HES CP-2 TRSV NIP, ID = 3.813" I Minimum ID = 3.725" @ 13831' 4-1/2" HES XN NIPPLE ~ GAS LIFT MANDRELS ~ ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3148 2975 39 HES TMPDX BK 5 7685 5493 62 HES TMPDX BK L 4 11424 7291 52 HES TMPDX BK 3 12838 8467 54 HES TMPDX BK - 2 13182 8800 53 HES TMPDX BK 1 13447 9063 5 HES TMPDX BK 13524' H 4-1/2" HES X NIP, ID = 3.813" I h 13582' 11 7-5/8" x 4-1/2" SABL-3 A<R I W/ ANCHOR LA TCH, ID = 3.875" 13603' H 4-1/2" HES X NIP, ID = 3.813" 1 I 13621 ' H 4-1/2" HES X NIP, ID = 3.813" I 13642' H 4-1/2" TUBING TAIL WLEG, ID = 4.00" 1 13640' H a.MD TT LOGGED 01/31/94 I 10-3/4" CSG, 45.5#, NT-80, ID = 9.953" H 5132' r-J 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" H 13642' ~ PERFORATION SUMMARY REF LOG: ATLAS SBL on 01/31/94 ANGLE AT TOP PERF: 1 @ 13748' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 3-3/8" 6 13748 - 13820 0 03/04/94 3-3/8" 6 13852 - 13904 0 03/04/94 2-7/8" 6 13940 - 13960 0 05/31/02 TOP OF 4-1/2" TBG H 13825' ~ ~ 13825' H 7-5/8" X 4-1/2" FB-1 PERM A<R, ID = 4.000" I I 13831' H 4-1/2" HES XN NIP, ID = 3.725" 1 l 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" H 13834' I------ 13834' H 4-1/2" TUBING TAIL WLEG, ID = 4.00" I 13836' H a.MDTTLOGGED01/31/94 I I PBTD H 14108' ~ 7-5/8" CSG, 29.7#, NT-80, ID = 6.875" H 14203' DA TE REV BY COMMENTS 01/14/94 ORIGINAL COMA...ET1ON 02/27/01 SIS-LG FINAL 09/26/01 RNIKAK CORRECTIONS 05/31/02 JLJ/KK ADPERF 03/31/03 BGG/TLI- TVDSS UPDATE DA TE REV BY COMtv1ENTS NIAKUK UNrr wa.L: NK-20 PERMrr No: 1931910 API No: 50-029-22429-00 Sec. 36, T12N, R15E. 4302.14 Fa. 3429.48 FNL BP Exploration (Alaska) := ST MD 6 3148 5 7685 4 11424 3 12838 2 13182 1 HES TMPDX SP Plan: Pian #3 (NK~20fNK~20A) Date: 311012005 2:49 PM TIM \/II'EtI-PATH DETAILS ,.- ..." '''m ~:: NK-2( 13100..00 Nordk:i 1-8 I 20 12f2:Zl1993 00:00 o:~~ ~~-= =:~ O.AXt 0.00 41..00 TARGETUETNL$ M +NI-$ tÐ'.w' ~TI'_ .... Ref. Ðiitum: V.Secfllm - 135.00" , · 3 · · · , · · ,. .. .. Company: Field: Site: Well: Wellpath: BPAmoco Niakuk NK Main Pad NK-20 NK-20A . . BP-GDB Baker Hughes INTEQ Planning Report Date: 3/1012005 Time: 14:44:42 Page: 1 Co-ordinate(NE) Reference: Well: NK-20, True North VertieaI (fVD) Reference: 18 : 20 12/22/1993 00:00 60.0 Section (VS) Reference: Well {0.00N,O.ooE,135.00Azi) Survey Calculation Method: Minimum Curvature Db: Oracle Field: Niakuk North Slope UNITED STATES Map System:US State Plane Coordinate System 1927 Geo Datum: NAD27 (Clarke 1866) Sys Datum: Mean Sea Level Site: NK Main Pad TR-12-15 UNITED STATES: North Slope Site Position: Northing: From: Map Easting: Position Uncertainty: 0.00 ft Ground Level: 0.00 ft Map Zone: Coordinate System: Geomagnetic Model: Alaska, Zone 4 Well Centre Wmm_2000 5981257.79 ft 714553.26 ft Latitude: 70 21 Longitude: 148 15 North Reference: Grid Convergence: 5.879 N 27.984 W True 1.64 deg Well: NK-20 Slot Name: 20 NK-20 Well Position: +N/-S -1435.41 ft Northing: 5980030.42 ft Latitude: 70 20 51.727 N +E/-W 7242.74 ft Easting : 721833.79 ft Longitude: 148 11 56.345 W Position Uncertainty: 0.00 ft Wellpath: NK-20A Current Datum: Magnetic Data: Field Strength: Vertical Section: Targets 18 : 20 12/22/1993 00:00 3/8/2005 o nT Depth From (fVD) ft 41.00 Drilled From: Tie-on Depth: Above System Datum: Declination: Mag Dip Angle: +E/-W ft 0.00 NK-20 13700.00 ft Mean Sea Level 0.00 deg 0.00 deg Direction deg 135.00 Height 60.00 ft +N/-S ft 0.00 Map Map <,...,... Latitude -> <-Longitude --->- Name Description TVD +N/-S +E/-W Northing Eas~g Deg Min See Deg·Min.. See Dip. Dir. ft ft ft ft ft NK-20A T3 9440.00 3977.15 7747.72 5984234.97 729460.05 70 21 30.802 N 148 8 9.830 W NK-20A T1 9450.00 4989.26 7017.32 5985224.98 728700.05 70 21 40.764 N 148 8 31.156 W NK-20A T2 9460.00 4416.45 7440.57 5984664.98 729140.05 70 21 35.126 N 148 8 18.797 W Annotation MD ft 13700.00 13775.00 13795.00 14040.81 14290.81 14605.81 14730.81 14880.81 15180.81 15430.81 15680.81 15950.00 TVD ft 9325.72 9400.72 9420.71 9557.58 9512.83 9460.42 9451.34 9452.88 9458.61 9460.33 9454.01 0.00 Principal: Yes Plan: Plan #3 TIP KOP End of 9 DLS End of 40 DLS 5 6 7 8 9 10 11 TO Date Composed: Version: Tied-to: 3/8/2005 1 From: Definitive Path . . BP-GDB Baker Hughes INTEQ Planning Report Compal\Y: BPAmoco Date: 3/1012005 Time: ... 14:44:42 Page: 2 Field: Niakuk Co-ordinate(NE) Reference: l,Nen:NK-20. True North Site: NKMain Pad Vertical (TVD) Reference: 18 :2012/22/199300:0060.0 WeD: NK-20 Section (VS) Referel\çe: Well (0.00N,O.ooE.135.00Azi) Wellpath: NK-20A Survey Calculation Metb04: Minimum Curvature Db: Oracle Plan Section Information MD loci Azim TVD +N/-S +EI-W DLS Build Tun TFO Target ft deg deg ft ft ft deg/10Oft deg/lOOftdeg/100ft deg 13700.00 0.77 83.59 9325.72 5642.24 6561.34 0.00 0.00 0.00 0.00 13775.00 0.37 48.10 9400.72 5642.46 6562.02 0.69 -0.53 -47.32 204.62 13795.00 1.68 151.57 9420.71 5642.24 6562.21 9.00 6.54 517.36 115.00 14015.81 90.00 151.57 9559.76 5516.33 6630.37 40.00 40.00 0.00 0.00 14040.81 100.00 151.57 9557.58 5494.46 6642.21 40.00 40.00 0.00 0.00 14290.81 100.15 121.09 9512.83 5318.62 6810.04 12.00 0.06 -12.19 273.00 14605.81 98.31 159.36 9460.42 5084.14 7004.85 12.00 -0.58 12.15 89.50 14730.81 90.00 146.83 9451.34 4973.32 7061.16 12.00 -6.64 -10.03 237.00 14880.81 88.83 164.79 9452.88 4837.07 7122.38 12.00 -0.78 11.98 93.80 15180.81 89.05 128.78 9458.61 4590.23 7283.99 12.00 0.07 -12.00 270.00 15430.81 90.18 158.76 9460.33 4390.86 7430.05 12.00 0.45 11.99 88.00 15680.81 92.65 128.85 9454.01 4191.44 7575.92 12.00 0.99 -11.96 275.00 15950.00 93.31 161.20 9439.62 3974.11 7727.98 12.00 0.24 12.01 88.00 Survey MD Incl Azim SSTVD N/S EIW MapN l\fapE VS DLS Toolface Tool ft deg deg ft ft ft ft ft ft deg/10Oft deg 13700.00 0.77 83.59 9265.72 5642.24 6561.34 5985864.15 728224.96 649.90 0.00 0.00 MWD 13775.00 0.37 48.10 9340.72 5642.46 6562.02 5985864.39 728225.64 650.23 0.69 204.62 MWD 13795.00 1.68 151.57 9360.71 5642.24 6562.21 5985864.18 728225.83 650.52 9.00 115.00 MWD 13800.00 3.68 151.57 9365.71 5642.04 6562.32 5985863.98 728225.95 650.74 40.00 0.00 MWD 13810.00 7.68 151.57 9375.66 5641.17 6562.79 5985863.12 728226.45 651.69 40.00 0.00 MWD 13814.39 9.43 151.57 9380.00 5640.59 6563.11 5985862.56 728226.77 652.31 40.00 0.00 NK-20A - 13820.00 11.68 151.57 9385.51 5639.69 6563.59 5985861.67 728227.29 653.30 40.00 360.00 MWD 13824.60 13.52 151.57 9390.00 5638.81 6564.07 5985860.80 728227.79 654.26 40.00 0.00 NK-20A - 13830.00 15.68 151.57 9395.23 5637.61 6564.72 5985859.62 728228.48 655.56 40.00 360.00 MWD 13834.98 17.67 151.57 9400.00 5636.35 6565.40 5985858.39 728229.19 656.94 40.00 0.00 NK-20A - 13840.00 19.68 151.57 9404.75 5634.94 6566.16 5985857.00 728230.00 658.47 40.00 360.00 MWD 13850.00 23.68 151.57 9414.04 5631.69 6567.92 5985853.80 728231.85 662.01 40.00 0.00 MWD 13860.00 27.68 151.57 9423.05 5627.88 6569.99 5985850.06 728234.03 666.17 40.00 0.00 MWD 13870.00 31.68 151.57 9431.74 5623.53 6572.34 5985845.77 728236.51 670.91 40.00 0.00 MWD 13880.00 35.68 151.57 9440.06 5618.66 6574.98 5985840.98 728239.29 676.22 40.00 0.00 MWD 13890.00 39.68 151.57 9447.97 5613.28 6577.89 5985835.69 728242.36 682.08 40.00 0.00 MWD 13900.00 43.68 151.57 9455.44 5607.43 6581.05 5985829.94 728245.70 688.45 40.00 0.00 MWD 13910.00 47.68 151.57 9462.43 5601.14 6584.46 5985823.76 728249.29 695.31 40.00 0.00 MWD 13920.00 51.68 151.57 9468.90 5594.44 6588.09 5985817.16 728253.11 702.62 40.00 0.00 MWD 13930.00 55.68 151.57 9474.82 5587.36 6591.92 5985810.20 728257.15 710.34 40.00 0.00 MWD 13940.00 59.68 151.57 9480.16 5579.93 6595.95 5985802.89 728261.39 718.43 40.00 0.00 MWD 13950.00 63.68 151.57 9484.91 5572.19 6600.14 5985795.28 728265.81 726.87 40.00 0.00 MWD 13960.00 67.68 151.57 9489.02 5564.18 6604.47 5985787.40 728270.38 735.60 40.00 0.00 MWD 13970.00 71.68 151.57 9492.50 5555.93 6608.94 5985779.29 728275.09 744.59 40.00 0.00 MWD 13980.00 75.68 151.57 9495.31 5547.49 6613.50 5985770.99 728279.90 753.78 40.00 0.00 MWD 13990.00 79.68 151.57 9497.44 5538.90 6618.15 5985762.54 728284.81 763.15 40.00 0.00 MWD 14000.00 83.68 151.57 9498.89 5530.20 6622.86 5985753.99 728289.77 772.63 40.00 0.00 MWD 14010.00 87.68 151.57 9499.64 5521.43 6627.61 5985745.36 728294.77 782.18 40.00 0.00 MWD 14015.81 90.00 151.57 9499.76 5516.33 6630.37 5985740.34 728297.69 787.75 40.00 0.00 MWD 14020.00 91.68 151.57 9499.70 5512.64 6632.37 5985736.72 728299.79 791.77 40.00 0.00 MWD 14030.00 95.68 151.57 9499.06 5503.87 6637.12 5985728.09 728304.80 801.33 40.00 0.00 MWD 14040.81 100.00 151.57 9497.58 5494.46 6642.21 5985718.83 728310.17 811.59 40.00 0.00 MWD 14050.00 100.06 150.45 9495.98 5486.54 6646.60 5985711.04 728314.79 820.29 12.00 273.00 MWD 14075.00 100.19 147.41 9491.59 5465.46 6659.30 5985690.35 728328.11 844.17 12.00 272.81 MWD 14100.00 100.29 144.36 9487.14 5445.09 6673.09 5985670.40 728342.50 868.33 12.00 272.27 MWD 14125.00 100.37 141.31 9482.66 5425.50 6687.95 5985651.26 728357.93 892.69 12.00 271.73 MWD 14150.00 100.42 138.26 9478.15 5406.72 6703.82 5985632.96 728374.35 917.19 12.00 271.18 MWD 14175.00 100.44 135.21 9473.62 5388.82 6720.67 5985615.56 728391.72 941.76 12.00 270.63 MWD . . BP-GDB Baker Hughes INTEQ Planning Report Company: BP Amoco Date: 3/10/2005 Time: 14:44:42 Page: Field: Niakuk Co-ordinate(NE) Reference: Well: NK-20, True North Site: NK Main Pad Vertical (TVD) Reference: 18: 2012/22/199300:0060.0 Well: NK-20 Section (VS) Ref.~rence: WØIL(0.00N,O.OOE,135.00Azi) Wellpath: NK-20A Snrvey Calculation Method: Minimum Curvature Db: Oracle Survey MD Incl Azim SSTVD N/S EIW MapN DLS Toolfaêe Tool ft deg deg ft ft ft ft deg/10Oft deg 14200.00 1 00.43 132.16 9469.09 5371.84 6738.45 5985599.12 728409.99 966.34 12.00 270.08 MWD 14225.00 100.39 129.11 9464.58 5355.82 6757.10 5985583.66 728429.11 990.86 12.00 269.53 MWD 14250.00 100.32 126.06 9460.08 5340.82 6776.59 5985569.25 728449.03 1015.24 12.00 268.98 MWD 14275.00 100.22 123.02 9455.63 5326.88 6796.85 5985555.91 728469.69 1039.43 12.00 268.43 MWD 14290.81 100.15 121.09 9452.83 5318.62 6810.04 5985548.05 728483.11 1054.59 12.00 267.88 MWD 14300.00 100.15 122.21 9451.21 5313.87 6817.74 5985543.5:3 728490.96 1063.39 12.00 89.50 MWD 14325.00 100.16 125.26 9446.80 5300.21 6838.20 5985530.48 728511.81 1087.53 12.00 89.70 MWD 14350.00 100.13 128.31 9442.40 5285.47 6857.91 5985516.33 728531.95 1111.88 12.00 90.23 MWD 14375.00 100.07 131.35 9438.01 5269.71 6876.81 5985501.14 728551.30 1136.39 12.00 90.77 MWD 14400.00 99.99 134.40 9433.66 5252.96 6894.84 5985484.9:3 728569.83 1160.99 12.00 91.31 MWD 14425.00 99.88 137.44 9429.34 5235.27 6911.97 5985467.76 728587.47 1185.61 12.00 91.84 MWD 14450.00 99.75 140.49 9425.08 5216.69 6928.14 5985449.66 728604.18 1210.18 12.00 92.36 MWD 14475.00 99.58 143.52 9420.88 5197.27 6943.31 5985430.70 728619.92 1234.64 12.00 92.88 MWD 14500.00 99.39 146.56 9416.76 5177.07 6957.44 5985410.92 728634.64 1258.91 12.00 93.39 MWD 14525.00 99.17 149.59 9412.73 5156.13 6970.48 5985390.38 728648.30 1282.94 12.00 93.89 MWD 14550.00 98.93 152.62 9408.79 5134.52 6982.41 5985369.1:3 728660.86 1306.66 12.00 94.38 MWD 14575.00 98.67 155.64 9404.97 5112.29 6993.19 5985347.24 728672.29 1330.00 12.00 94.86 MWD 14600.00 98.38 158.66 9401.26 5089.51 7002.79 5985324.75 728682.56 1352.89 12.00 95.32 MWD 14605.81 98.31 159.36 9400.42 5084.14 7004.85 5985319.415 728684.77 1358.14 12.00 95.77 MWD 14625.00 97.05 157.42 9397.86 5066.46 7011.85 5985301.98 728692.30 1375.60 12.00 237.00 MWD 14650.00 95.40 154.90 9395.15 5043.73 7021.90 5985279.56 728703.01 1398.77 12.00 236.74 MWD 14675.00 93.73 152.39 9393.16 5021.40 7032.96 5985257.5'7 728714.73 1422.39 12.00 236.47 MWD 14700.00 92.06 149.90 9391.89 4999.54 7045.01 5985236.0"7 728727.42 1446.37 12.00 236.27 MWD 14725.00 90.39 147.40 9391.36 4978.20 7058.01 5985215.13 728741.05 1470.65 12.00 236.14 MWD 14730.81 90.00 146.83 9391.34 4973.32 7061.16 5985210.35 728744.34 1476.33 12.00 236.09 MWD 14750.00 89.85 149.12 9391.36 4957.05 7071.34 5985194.38 728755.00 1495.03 12.00 93.80 MWD 14775.00 89.65 152.12 9391.47 4935.27 7083.61 5985172.98 728767.90 1519.10 12.00 93.80 MWD 14800.00 89.45 155.11 9391.67 4912.88 7094.71 5985150.92 728779.67 1542.79 12.00 93.78 MWD 14825.00 89.26 158.11 9391.95 4889.93 7104.64 5985128.29 728790.26 1566.03 12.00 93.76 MWD 14850.00 89.06 161.10 9392.31 4866.51 7113.35 5985105.1:3 728799.66 1588.76 12.00 93.73 MWD 14875.00 88.87 164.09 9392.76 4842.66 7120.82 5985081.51 728807.84 1610.91 12.00 93.68 MWD 14880.81 88.83 164.79 9392.88 4837.07 7122.38 5985075.9'7 728809.56 1615.96 12.00 93.63 MWD 14900.00 88.83 162.49 9393.27 4818.65 7127.79 5985057.7:3 728815.51 1632.80 12.00 270.00 MWD 14925.00 88.83 159.48 9393.78 4795.03 7135.93 5985034.35 728824.35 1655.27 12.00 270.05 MWD 14950.00 88.84 156.48 9394.29 4771.86 7145.30 5985011.4'7 728834.40 1678.28 12.00 270.11 MWD 14975.00 88.85 153.48 9394.79 4749.21 7155.87 5984989.15 728845.63 1701.76 12.00 270.17 MWD 15000.00 88.87 150.48 9395.29 4727.15 7167.61 5984967.44 728858.02 1725.67 12.00 270.23 MWD 15025.00 88.88 147.48 9395.78 4705.73 7180.49 5984946.41 728871.53 1749.92 12.00 270.29 MWD 15050.00 88.90 144.48 9396.26 4685.01 7194.47 5984926.1 :2 728886.12 1774.45 12.00 270.35 MWD 15075.00 88.92 141.48 9396.74 4665.06 7209.52 5984906.6:2 728901.75 1799.20 12.00 270.41 MWD 15100.00 88.95 138.48 9397.20 4645.92 7225.59 5984887.9"7 728918.38 1824.10 12.00 270.46 MWD 15125.00 88.98 135.48 9397.65 4627.64 7242.64 5984870.21 728935.96 1849.08 12.00 270.52 MWD 15150.00 89.01 132.48 9398.09 4610.29 7260.62 5984853.3i~ 728954.45 1874.07 12.00 270.57 MWD 15175.00 89.04 129.48 9398.52 4593.90 7279.49 5984837.5'7 728973.80 1899.00 12.00 270.63 MWD 15180.81 89.05 128.78 9398.61 4590.23 7283.99 5984834.04 728978.40 1904.78 12.00 270.68 MWD 15200.00 89.13 131.09 9398.92 4577.91 7298.71 5984822.16 728993.48 1923.89 12.00 88.00 MWD 15225.00 89.24 134.08 9399.27 4561.00 7317.11 5984805.80 729012.37 1948.86 12.00 87.96 MWD 15250.00 89.35 137.08 9399.58 4543.15 7334.61 5984788.4"7 729030.39 1973.86 12.00 87.92 MWD 15275.00 89.46 140.08 9399.84 4524.40 7351.14 5984770.23 729047.47 1998.81 12.00 87.88 MWD 15300.00 89.58 143.08 9400.05 4504.82 7366.68 5984751.11 729063.57 2023.64 12.00 87.85 MWD 15325.00 89.69 146.08 9400.21 4484.45 7381.16 5984731.18 729078.66 2048.29 12.00 87.83 MWD 15350.00 89.81 149.07 9400.32 4463.35 7394.57 5984710.4i~ 729092.68 2072.68 12.00 87.81 MWD . . BP-GDB Baker Hughes INTEQ Planning Report Company: BPAmoco Date: 3/10/2005 Time: .14:44:42 Page: 4 Field: Niakuk Co-ordinate(NE) Reference: Well: NK-20, True North Site: NK Main Vertical(TVD) Reference: 18: 2012/22/199300:0060.0 Well: NK-20 SectIon (VS) Reference: Well (0.00N,0.00E,135.00Azi) Wellpath: NK-20A Snrvey.Calculation . Method: Minimum Curvature Db: Oracle Survey MD Incl Azim SSTVD N/S EIW MapN MapE VS DLS Toolface Tool ft deg deg ft ft ft ft ft ft deg/100ft deg 15375.00 89.92 152.07 9400.38 4441.58 7406.85 5984689.09 729105.60 2096.76 12.00 87.80 MWD 15400.00 90.04 155.07 9400.39 4419.19 7417.97 5984667.05 729117.38 2120.46 12.00 87.79 MWD 15425.00 90.15 158.07 9400.34 4396.26 7427.92 5984644.4:2 729128.00 2143.70 12.00 87.79 MWD 15430.81 90.18 158.76 9400.33 4390.86 7430.05 5984639.08 729130.29 2149.03 12.00 87.79 MWD 15450.00 90.38 156.47 9400.23 4373.11 7437.36 5984621.515 729138.12 2166.75 12.00 275.00 MWD 15475.00 90.64 153.48 9400.01 435Q.46 7447.93 5984599.24 729149.36 2190.24 12.00 274.99 MWD 15500.00 90.90 150.49 9399.68 4328.40 7459.67 5984577.53 729161.75 2214.15 12.00 274.96 MWD 15525.00 91.15 147.50 9399.23 4306.98 7472.55 5984556.50 729175.25 2238.40 12.00 274.92 MWD 15550.00 91.41 144.51 9398.67 4286.26 7486.52 5984536.20 729189.83 2262.93 12.00 274.87 MWD 15575.00 91.66 141.52 9398.00 4266.30 7501.55 5984516.70 729205.45 2287.67 12.00 274.80 MWD 15600.00 91.90 138.53 9397.22 4247.15 7517.60 5984498.0:3 729222.06 2312.56 12.00 274.72 MWD 15625.00 92.14 135.54 9396.34 4228.87 7534.63 5984480.27 729239.62 2337.53 12.00 274.63 MWD 15650.00 92.37 132.54 9395.36 4211.50 7552.59 5984463.44 729258.08 2362.50 12.00 274.52 MWD 15675.00 92.60 129.55 9394.27 4195.11 7571.42 5984447.61 729277.39 2387.42 12.00 274.41 MWD 15680.81 92.65 128.85 9394.01 4191.44 7575.92 5984444.08 729281.99 2393.19 12.00 274.28 MWD 15700.00 92.73 131.16 9393.10 4179.11 7590.60 5984432.1 i~ 729297.03 2412.28 12.00 88.00 MWD 15725.00 92.83 134.16 9391.89 4162.20 7608.96 5984415.83 729315.88 2437.23 12.00 88.11 MWD 15750.00 92.91 137.16 9390.64 4144.34 7626.41 5984398.50 729333.85 2462.20 12.00 88.25 MWD 15775.00 92.99 140.17 9389.35 4125.60 7642.90 5984380.25 729350.89 2487.11 12.00 88.40 MWD 15800.00 93.06 143.17 9388.03 4106.01 7658.38 5984361.13 729366.94 2511.90 12.00 88.56 MWD 15825.00 93.13 146.17 9386.68 4085.65 7672.81 5984341.2·1 729381.97 2536.51 12.00 88.72 MWD 15850.00 93.18 149.18 9385.30 4064.56 7686.16 5984320.5:2 729395.94 2560.86 12.00 88.88 MWD 15875.00 93.23 152.18 9383.90 4042.80 7698.38 5984299.1:3 729408.80 2584.89 12.00 89.05 MWD 15900.00 93.26 155.19 9382.49 4020.43 7709.45 5984277.10 729420.52 2608.53 12.00 89.21 MWD 15925.00 93.29 158.19 9381.06 3997.51 7719.32 5984254.4!~ 729431.07 2631.72 12.00 89.38 MWD 15950.00 93.31 161.20 9379.62 3974.11 7727.98 5984231.35 729440.42 2654.39 12.00 89.56 MWD AI! top of bag bttm of bag middle of slips middlE! of pipes middle of flow cross middle of blind/shears middle 01 pipe/slips Nordic 1 big hole Blind/Shears combi ram/slips -- r-- 1 I v8riablebore pipe 3 1/2"~27/8" I 2 - 3/1 71/16" 7 1/16" Mud 7 1/16" TERRIE L HUBBLE BP EXPLORA TIONAKINC POBOX 196612 Me 7-5 ANCHORAGE, AK 99519-6612 "Mastercard Check" 89-6/1252 183 OATE~ $~ ~ DOLL~n£ .... . I:¡ 25 2000 ¡;, 01: '1 '1 U,..¡;, 22 ''''1.55¡;',,' 0 I.B 3 . . . TRANSMIT AL LETTER CHECK LIST CIRCLE APPROPRIATE LETTERJPARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELLNAME/~4 A/}:-2.ÒA PTD# 2os-0'/n )< Development Service CHECK WHAT APPLIES ADD-ONS (OPTIONS) MULTI LATERAL (If API number last two. (2) digits are between 60-69) Exploration Stratigraphic "CLUE". Tbe permit is for a new weUbore ·segmeDt of e:¡istiDg weD,. . Permit No, .' API No. . Production. sbould continue to be reponed as a functioD' of tbe original API number. stated above. . HOLE )D accordaDce witb' 20 AAC 25.005(t), all records, data and Jogs acquired for tbe pilot bole must be clearly differentiated In botb name (Dame OB permit pJus PH) aDd API Dumber (SO 10/80) from records, data aDd logs acquired for well (Dame on permit). PD.,OT (PH) SPACING EXCEPTION DRY DITCH SAMPLE Tbe permit is approved subject ·to fuD compliaDce witb 20 AAC 25~OS5~ Approval to perforate aDd produce is cODtiDgeDt UpoD issuance of a cODservatioD order approviug a spaciDg' e:JceptioD. _ {CompaDY Name) assumes tbe liabiUty of aDY protest to tbe spaciDg .~JCeptioD tbat may occur. AU dry ditcb sample sets submitted to tbe CommissioD must be in DO greater -tbaD 30' sample iDtervals from below tbe permafrost or from where samples are first caught aDd ] 0' samplebjter:vals tbrough target zODes. ~!:! Field & Pool PRUDHOE BAY, NIAKUK OIL - 640148 Well Name: PRUDHOE BAY UN NIA NK-20A Program DEV PTD#: 2050400 Company BP EXPLORATION (ALASKA) INC Initial ClasslType DEV /1-0IL GeoArea 890 Unit 11650 On/Off Shore Off 1 P~rmitfee attache9 . . . . . . . Yes. . . . . . . . . . . . 2 .Leas~.number .appropriate. . . . . . . . . Y~s . . . . . . . . . . . . . . . . . . . 3 .U.nlque well.n.am~.and lJl.!mb.er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y~s _ _ _ _ _ _ . . _ . . . . _ _ _ _ _ _ _ _ . . . . . . . _ _ _ _ _ _ _ _ _ _ _ _ . _ . _ _ _ _ _ _ _ . . . . _ . _ . . _ . _ . . _ _ _ _ . _ . . . . _ 4 WellJQcat~d in.a.d.efine.d.ppol. . . . . . . . . . . . . . . Y~s. . . . . . . . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 WellJQcat~d properdlstançe. from driJling unit boundary . ..................... Y~s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 WellJQcated pr.oper .distançe from Qther wells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes. . . . . . . . . 7Sutficient acreage.ayailable in.drillilJg unjt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 .If deviated, js weJlbQre platincJuded . . . . . . . . Yes. . . . . . . . _ . . . . . . . . . 9 Operator onl}' affected party. .No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 .Operator lJas.apprppriate_bond lnJQrce _ _ _ _ _ _ _ _ _ _ _ . . . _ _ . . . . _ . . _ _ _ . . . . . . . Y~s _ . _ _ _ _ _ . . _ . . . _ _ _ _ _ _ _ _ _ _ _ _ . . . _ _ _ _ _ . . . . _ . . . . _ . . _ _ _ _ _ . _ . . _ . _ _ . _ _ _ _ _ _ _ _ . . _ . . . _ 11 Permit can be lssued wjtlJQut conservation Qrder. . . . . . . . . . . . . Y~s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appr Date 12 Permit. can be iSSl.!ed wjtlJQut ad.ministratilie.apprpvaJ . . . . . . . . . . . _ . . . _ . . . . Y~s _ _ . . . . . . . . . . . . . . . . . . . . _ . RPC 3/15/2005 13 Can permit be approved before 15-day wait Yes 14 WellJQcated wlthin area alld.strata .authQrized by.lnjectiPIJ Order # (pullO# in.c.omm.entsUFQr NA _ . . . . . . . . . . . . . . . . . . .. ........ _ . _ _ . . . . . . .. ...... 15 .AJI wells.wit!1inJl4_mite_are.a_of reyiew jdelJtlfied (Fprservj~we[lonIYL . . _ . _ . _ . . . . . . . .NA. _ _ . . . . _ . . _ . _ _ . _ _ _ _ . _ _ . _ . _ . . . . _ _ . _ . . _ _ _ . _ . _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ . . . _ _ _ _ _ . . . . . . _ _ _ 16 Pre-produ.ced. injector; .duratiQn.of pre-:productipnl~ss. t!1an.:3 mOllths. (For_ser:vlce welt QnJy) . .NA . . . . . . . _ . 17 ACMP Fjndjng ofCQnsistency has beenissuedforìbis proiect .NA . . . . . . . . . . . . . . . . . . . . . . . . . . Well bore seg Annular Disposal Administration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ - - - - - - - - - Engineering 18 .C.onductor stringprQvided . . . . . . . . . . . . .NA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 .S.urfacecasingpJQtects all.knowll USDWs . . . . .NA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .CMTv.otadeQu.ate.to circ.utate.o.n.cond.uctor.& su.rf.csg . . . . . . . . . . . . . . . . NA . . . . . . . . . . . . 21 .CMT vol. adeQuate.to tie-ln JQngstring to surf çSg. . . . . . . . . . . . . . . . . . NA . . . . . . . . . _ . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22CMTwill c;oyer.aJl known.pro.ductiye bQri;!:ons. . . . . . . . . . . . . . . . . . . . . . . Y~s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Casing designs ad.equate fpr C,T, B&permafrost . Yes... . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . _ . . . . _ _ _ . . . . . . . . . . . . . . . . . . . . . . . 24 .Ädequate.tankage.or re.ser:ve pit. _ . . . . . . . Y~s. . . . . . . CTDU.. . . . . . . . . . . . . . . 25 Jf.are-driIL has.a. 1.0:403 fQr abandOllmept beelJ apprQved . . . . . . . . . . . . . _ . . . . . . Y~s _ . . . . . . . . . . . . . . . . . 26 .Ädequatewe[lbore. separatjo.n.proposed. . . _ . _ _ _ _ . . . . . . _ _ . _ _ _ . _ _ _ _ . _ _ _ _ . _ Y~s _ _ _ _ _ _ _ . . _ _ _ . . . _ _ _ . _ _ . . . . . . . _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ . . _ . . . . _ . . _ _ . . . . . . . 27 Jf.diverter req.uired, dQes it meet reguJations. . . . . . . . . . . .. .. NA . . . Sidetrack. . 28 .DriUilJg fJuidprQgram schematlc& eq.uipJistadequate. . . . . . . . . . . . . . . Y~s . . . _ . . Max MW9~9 ppg. . . . . . . . . . . .. . _ . . _ . 29 BOPES,dpthey meet reguJation . . Yes. 30 .B.OPE.pressratilJg appropriate;.testto.(pu.t psig in.comments). . . . . . . . _ . . . . . . . . Y~s . . . . . Testt040QOpsi. .I\lIS~ 37.20 psi.. . . 31 _Choke.manjfold cQmpJies w/API.R~-5:3 (May 84) . . . . . . . . . . . . . . . . Yes. 32 WQrk will pccur withputoperatjopsbutdown . . . . . . Yes. 33 .Is presence Qf H2S gas probable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes. . 34 Mecha.nical.COlJdjUon pf wells within AOR yerifiecl (fpr. s.ervice welJ ollly) . . . . . NA - - - - - - - - - ~ Appr Date WGA 3/16/2005 - - - - - - - - - - - - - - - - - - - - - - - - - - - - _. - - .2QO.ppm, . . - - - - - - - - - - - - - - - - - - - - - - - - -- Geology 35 Permit can be issued wlo. hydrogen s.ulfide meas.!Jres . . . . . . . . _ _ . . . . . . . . . .No 36 .D.atapresentecl on. pote.ntial pverpressurezones. . . NA . . . . . . 37 .S~ismic.analysjs. Qf shaJlow gas.zPlJes. . . . . . . . . . . . . . . . . . . . . .NA 38 .Seabed .condjtiolJ Sl.!rvey.(if off-shore) . . . . . . . . . .. ........ . .NA 39 . CQntact llamelp!1OlleJor.weelsly prpgressreports [exploratory .only] . .NA . . . . . . . - - - - - - - - - - - - - Appr RPC Date 3/15/2005 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Geologic Commissioner: Engineering Commissioner: ¿¡¡bli~ ner / Date: Date Date ro//os- JJT~ 3/¡s/S o o . . . . Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding infomlation, 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. .. e e Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Fri Mar 16 14:22:11 2007 Reel Header Service name....... ..... .LISTPE Date.................... .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name............... . UNKNOWN Continuation Number..... .01 Previous Reel Name...... . UNKNOWN Comments..... ........... .STS LIS Writing Library. Scientific Technical Services Tape Header Service name....... .... ..LISTPE Date. . . . . . . . . . . . . . . . . . . . .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name........... .... .UNKNOWN Continuation Number..... .01 Previous Tape Name. .... ..UNKNOWN Comments............ .....STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS # WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: # JOB DATA NK-20A 500292242901 BP Exploration (Alaska) Inc. Sperry Drilling Services 16-MAR-07 JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 3 MW0003638021 S. LATZ R. WHITLOW/J MWD RUN 4 MW0003638021 S. LATZ R. WHITLOW/J MWD RUN 5 MW0003638021 S. LATZ R. WHITLOW/J JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 8 MW0003638021 B. JAHN J. EGBEJIMBA MWD RUN 9 MW0003638021 B. JAHN J. EGBEJIMBA # SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: 36 12N 15E 1487 724 MSL 0) 60.00 .00 .00 # WELL CASING RECORD OPEN HOLE CASING DRILLERS (;)CfS -òLf Ò .tJ ILf S- --:; ¿ ( 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING e BIT SIZE (IN) SIZE (IN) 4.125 4.500 e DEPTH (FT) 13779.0 # REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH - SUBSEA (TVDSS) . 3. THIS WELL IS AN OPENHOLE SIDETRACK EXITING THE NK-20A PB1 WELLBORE AT 14570'MD/9405'TVDSS. 4. MWD RUNS 1-4,8 COMPRISED DIRECTIONAL, AND NATURAL GAMMA RAY (PCG) UTILIZING SCINTILLATION DETECTORS. MWD RUN 1 WAS TO TIE-IN TO THE PARENT WELLBORE - THESE SGRD DATA WERE MERGED WITH MWD RUN 4 TIE-IN AND MWD DATA. THE WHIP- STOCK WAS POSITONED DURING MWD RUN 2. MWD RUN 3 WAS TO KICK-OFF THE SIDE- TRACK. NO DATA ARE PRESENTED FOR MWD RUN 2; ONLY SROP DATA ARE PRESENTED FOR MWD RUN 3. 5. MWD RUNS 5,9 COMPRISED DIRECTIONAL, DUAL GAMMA RAY (GM) UTILIZING GEIGER- MUELLER TUBE DETECTORS, AND ELECTROMAGNETIC WAVE RESISTIVITY PHASE-4(EWR4). EWR PASS DATA WERE ACQUIRED OVER THE UPHOLE SECTION WHILE RIH FOR RUN 5. THESE MAD DATA WERE MERGED WITH RUN 5 MWD DATA. EWR PASS DATA ACQUIRED OVER THE MWD RUN 8 INTERVAL WHILE RIH FOR RUN 9 WERE MERGED WITH RUN 9 MWD DATA - NO SEPARATE MAD PRESENTATION IS INCLUDED. 6. DEPTH SHIFTING OF MWD DATA WAS WAIVED PER E-MAIL DATED 2/1/2007 FROM DOUG DORTCH (SAIC/BP) TO BUSTER BRYANT (SDS) , QUOTING AUTHORIZATION FROM CHRIS STONE (BP GEOSCIENTIST). MWD DATA ARE CONSIDERED PDC. 7. MWD RUNS 1-5,8,9 REPRESENT WELL NK-20A WITH API#: 50-029-22429-01. THIS WELL REACHED A TOTAL DEPTH(TD)OF 15790'MD/9400'TVDSS. SROP SMOOTHED RATE OF PENETRATION WHILE DRILLING. SGRC SMOOTHED GAMMA RAY COMBINED. SGRD SMOOTHED NATURAL GAMMA RAY. SEXP SMOOTHED PHASE SHIFT-DERIVED SHALLOW SPACING) . SESP = SMOOTHED PHASE SHIFT-DERIVED SPACING) . SEMP = SMOOTHED PHASE SHIFT-DERIVED SPACING) . SEDP = SMOOTHED PHASE SHIFT-DERIVED SPACING) . SFXE = SMOOTHED FORMATION EXPOSURE TIME. RESISTIVITY (EXTRA RESISTIVITY (SHALLOW RESISTIVITY (MEDIUM RESISTIVITY (DEEP $ e e File Header Service name............ .STSLIB.001 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type............... .LO Previous File Name..... ..STSLIB.OOO Comment Record FILE HEADER FILE NUMBER: EDITED MERGED MWD Depth shifted DEPTH INCREMENT: # FILE SUMMARY PBU TOOL CODE GR RPD RPX RPS RPM FET ROP $ 1 and clipped curves; all bit runs merged. .5000 START DEPTH 13510.0 13770.0 13770.0 13770.0 13770.0 13770.0 13804.5 STOP DEPTH 15747.5 15756.5 15756.5 15756.5 15756.5 15756.5 15790.0 # BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) --------- EQUIVALENT UNSHIFTED DEPTH ------ BASELINE DEPTH $ # MERGED DATA SOURCE PBU TOOL CODE MWD MWD MWD MWD MWD $ # REMARKS: BIT RUN NO 3 4 5 8 9 MERGED MAIN PASS. $ MERGE TOP 13804.5 13845.0 14026.5 14570.0 14652.0 MERGE BASE 13845.0 14026.5 14570.0 14652.0 15790.0 # Data Format Specification Record Data Record Type.... ... ...........0 Data Specification Block Type... ..0 Logging Direction.... ..... ...... ..Down Optical log depth units..... .... ..Feet Data Reference Point........... ...Undefined Frame Spacing................. ....60 .1IN Max frames per record........ .....Undefined Absent value.................. ....-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD OHMM 4 1 68 4 2 RPM MWD OHMM 4 1 68 8 3 RPS MWD OHMM 4 1 68 12 4 RPX MWD OHMM 4 1 68 16 5 FET MWD HOUR 4 1 68 20 6 GR MWD API 4 1 68 24 7 ROP MWD FT/H 4 1 68 28 8 e e First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 13510 15790 14650 4561 13510 15790 RPD MWD OHMM 0.09 2000 26.4763 3974 13770 15756.5 RPM MWD OHMM 0.11 2000 21.5065 3974 13770 15756.5 RPS MWD OHMM 0.16 2000 25.1806 3974 13770 15756.5 RPX MWD OHMM 0.35 2000 15.784 3974 13770 15756.5 FET MWD HOUR 0.18 121.74 4.11657 3974 13770 15756.5 GR MWD API 16.62 1172.37 83.3083 4476 13510 15747.5 ROP MWD FT/H 0.15 182.29 72.33 3972 13804.5 15790 First Reading For Entire File......... .13510 Last Reading For Entire File.......... .15790 File Trailer Service name........... ..STSLIB.001 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type.............. ..LO Next File Name.. ........ .STSLIB.002 Physical EOF File Header Service name............ .STSLIB.002 Service Sub Level Name... Version Number.... .... ...1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type... ............ .LO Previous File Name...... .STSLIB.001 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE ROP $ 2 header data for each bit run in separate files. 3 .5000 START DEPTH 13804.5 STOP DEPTH 13845.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: 07-APR-05 Insite 7.75 Memory .0 .0 # TOOL STRING (TOP TO VENDOR TOOL CODE $ e BOTTOM) TOOL TYPE # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..... ..... ........0 Data Specification Block Type.....O Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet Data Reference Point............. . Undefined Frame Spacing.................... .60 .1IN Max frames per record........... ..Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name Service Order DEPT ROP MWD030 TOOL NUMBER 4.125 13779.0 Flo Pro 8.60 65.0 9.2 52000 6.4 .000 .000 .000 .000 Units Size Nsam Rep Code Offset Channel FT 4 1 68 0 1 FT/H 4 1 68 4 2 Name Service Unit DEPT FT ROP MWD030 FT/H Min 13804.5 2.46 Max 13845 34.99 First Reading For Entire File......... .13804.5 Last Reading For Entire File.... ..... ..13845 File Trailer Service name.... ........ .STSLIB.002 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record..65535 File Type............... .LO Next File Name.......... .STSLIB.003 Mean 13824.8 27.8211 Nsam 82 82 e .0 145.9 .0 .0 First Reading 13804.5 13804.5 Last Reading 13845 13845 e Physical EOF File Header Service name............ .STSLIB.003 Service Sub Level Name. . . Version Number. ......... .1.0.0 Date of Generation..... ..07/03/16 Maximum Physical Record..65535 File Type............... .LO Previous File Name...... .STSLIB.002 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 3 e header data for each bit run in separate files. 4 .5000 START DEPTH 13510.0 13845.5 STOP DEPTH 13996.5 14026.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): 08-APR-05 Insite 7.75 Memory 47.5 90.1 TOOL NUMBER TLG015 4.125 13779.0 Flo Pro 8.60 65.0 9.2 24000 6.4 .000 .000 .000 .000 .0 141.7 .0 .0 e e # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type.... ..... ....... ..0 Data Specification Block Type... ..0 Logging Direction.... ..... ..... ...Down Optical log depth units.. ...... ...Feet Data Reference Point...... ...... ..Undefined Frame Spacing................... ..60 .1IN Max frames per record........... ..Undefined Absent value......... ......... ....-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type. ..0 Service Order Units FT API FT/H Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Name DEPT GR ROP MWD040 MWD040 Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 13510 14026.5 13768.3 1034 13510 14026.5 GR MWD040 API 25.5 1172.37 156.954 974 13510 13996.5 ROP MWD040 FT/H 0.69 82.21 32.9957 363 13845.5 14026.5 First Reading For Entire File......... .13510 Last Reading For Entire File.......... .14026.5 File Trailer Service name............ .STSLIB.003 Service Sub Level Name. . . Version Number.......... .1.0.0 Date of Generation.. .... .07/03/16 Maximum Physical Record. .65535 File Type............ ... .LO Next File Name.......... .STSLIB.004 Physical EOF File Header Service name............ .STSLIB.004 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation.. .... .07/03/16 Maximum Physical Record. .65535 File Type.............. ..LO Previous File Name...... .STSLIB.003 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY 4 header data for each bit run in separate files. 5 .5000 e VENDOR TOOL CODE FET RPX RPS RPM RPD GR ROP $ START DEPTH 13770.0 13770.0 13770.0 13770.0 13770.0 13997.0 14027.0 STOP DEPTH 14590.0 14590.0 14590.0 14590.0 14590.0 14590.0 14590.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE GM EWR4 $ BOTTOM) TOOL TYPE Dual GR ELECTROMAG. RES IS. 4 # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB!G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type...... ............0 Data Specification Block Type.....O Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet Data Reference Point......... .... . Undefined Frame Spacing........ ...... ..... ..60 .1IN Max frames per record. ........... .Undefined Absent value.......... ........... .-999 Depth Units....................... e 10-APR-05 Insite 4.3 Memory 87.9 101. 9 TOOL NUMBER 78005 178424 4.125 13779.0 Flo Pro 8.60 65.0 9.1 24000 6.2 .120 .050 .170 .150 65.0 153.0 65.0 65.0 e e Datum Specification Block sub-type...O Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD050 OHMM 4 1 68 4 2 RPM MWD050 OHMM 4 1 68 8 3 RPS MWD050 OHMM 4 1 68 12 4 RPX MWD050 OHMM 4 1 68 16 5 FET MWD050 HOUR 4 1 68 20 6 GR MWD050 API 4 1 68 24 7 ROP MWD050 FT/H 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 13770 14590 14180 1641 13770 14590 RPD MWD050 OHMM 0.09 2000 48.1185 1641 13770 14590 RPM MWD050 OHMM 0.11 2000 37.9764 1641 13770 14590 RPS MWD050 OHMM 0.16 2000 45.2748 1641 13770 14590 RPX MWD050 OHMM 0.35 2000 26.7047 1641 13770 14590 FET MWD050 HOUR 0.18 39.08 6.84938 1641 13770 14590 GR MWD050 API 33.75 128.49 85.1066 1187 13997 14590 ROP MWD050 FT/H 0.31 182.29 61.6544 1127 14027 14590 First Reading For Entire File.. ....... .13770 Last Reading For Entire File..... ..... .14590 File Trailer Service name............ .STSLIB.004 Service Sub Level Name. . . Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type... . . . . . . . . . . . . . LO Next File Name.......... .STSLIB.005 Physical EOF File Header Service name......... ... .STSLIB.005 Service Sub Level Name... Version Number...... .... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type.... ........... .LO Previous File Name...... .STSLIB.004 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 5 header data for each bit run in separate files. 8 .5000 START DEPTH 14542.5 14590.5 STOP DEPTH 14621. 5 14652.0 # LOG HEADER DATA DATE LOGGED: 14-APR-05 e SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type... ............. ..0 Data Specification Block Type... ..0 Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet Data Reference Point............. .Undefined Frame Spacing... ...... ........... .60 .1IN Max frames per record............ . Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name DEPT GR ROP Service Order Size 4 4 4 Nsam Rep 1 68 1 68 1 68 Code Units FT API FT/H MWD080 MWD080 Name Service Unit DEPT FT GR MWD080 API Min 14542.5 34.76 Max 14652 70.75 Insite 7.75 Memory 87.0 97.9 TOOL NUMBER TLG002 3.750 13779.0 Flo Pro 8.60 49.0 8.5 155000 5.6 .000 .000 .000 .000 Offset o 4 8 Channel 1 2 3 Mean 14597.3 52.6457 Nsam 220 96 e .0 154.0 .0 .0 First Reading 14542.5 14542.5 Last Reading 14652 14621. 5 ROP MWD080 FT/H e 0.15 57.85 First Reading For Entire File......... .14542.5 Last Reading For Entire File.......... .14652 File Trailer Service name. ........... .STSLIB.005 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type............... .LO Next File Name.......... .STSLIB.006 Physical EOF File Header Service name............ .STSLIB.006 Service Sub Level Name... Version Number...... .... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type........... .... .LO Previous File Name..... ..STSLIB.005 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE RPX RPD RPM RPS FET GR ROP $ 6 32.997 e 14590.5 14652 124 header data for each bit run in separate files. 9 .5000 START DEPTH 14590.5 14590.5 14590.5 14590.5 14590.5 14622.0 14652.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE GM EWR4 $ BOTTOM) TOOL TYPE Dual GR ELECTROMAG. # STOP DEPTH 15756.5 15756.5 15756.5 15756.5 15756.5 15747.5 15790.0 RESIS. 4 15-APR-05 Insite 4.3 Memory 85.5 96.2 TOOL NUMBER 78012 178424 e BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type... ..0 Logging Direction... ........ .... ..Down Optical log depth units......... ..Feet Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record............ . Undefined Absent value....... ..... ......... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O 3.750 13779.0 Flo Pro 8.60 49.0 8.5 52000 5.4 .800 .370 1.000 1.000 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD090 OHMM 4 1 68 4 2 RPM MWD090 OHMM 4 1 68 8 3 RPS MWD090 OHMM 4 1 68 12 4 RPX MWD090 OHMM 4 1 68 16 5 FET MWD090 HOUR 4 1 68 20. 6 GR MWD090 API 4 1 68 24 7 ROP MWD090 FT/H 4 1 68 28 8 Name DEPT RPD RPM RPS RPX FET GR ROP Service Unit FT MWD090 OHMM MWD090 OHMM MWD090 OHMM MWD090 OHMM MWD090 HOUR MWD090 API MWD090 FT/H Max 15790 545.86 507.04 2000 102.88 121.74 120.68 146.11 Min 14590.5 1. 77 1.56 1.57 1. 58 0.25 16.62 0.55 First Reading For Entire File... ..... ..14590.5 Last Reading For Entire File.......... .15790 Mean 15190.3 11.2535 9.92181 11. 0467 8.1025 2.19435 51.3918 87.6361 Nsam 2400 2333 2333 2333 2333 2333 2252 2276 e 70.0 159.0 70.0 70.0 First Reading 14590.5 14590.5 14590.5 14590.5 14590.5 14590.5 14622 14652.5 Last Reading 15790 15756.5 15756.5 15756.5 15756.5 15756.5 15747.5 15790 e e File Trailer Service name............ .STSLIB.006 Service Sub Level Name... Version Number.. ........ .1.0.0 Date of Generation.... ...07/03/16 Maximum Physical Record. .65535 File Type............... .LO Next File Name.......... .STSLIB.007 Physical EOF Tape Trailer Service name. ........... .LISTPE Date. . . . . . . . . . . . . . . . . . . . .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name.... ........... . UNKNOWN Continuation Number..... .01 Next Tape Name.. ........ .UNKNOWN Comments.......... ...... .STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name............... . UNKNOWN Continuation Number..... .01 Next Reel Name.......... . UNKNOWN Comments..... ........... .STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File e Sperry-Sun Drilling Services LIS Scan Utility e $Revision: 3 $ LisLib $Revision: 4 $ Fri Mar 16 15:11:45 2007 Reel Header Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name............... . UNKNOWN Continuation Number..... .01 Previous Reel Name.. .... .UNKNOWN Comments............ .... .STS LIS Writing Library. Scientific Technical Services Tape Header Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name............... . UNKNOWN Continuation Number..... .01 Previous Tape Name...... . UNKNOWN Comments............ .... .STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS # WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: # JOB DATA NK-20A PB1 500292242970 BP Exploration (Alaska) Inc. Sperry Drilling Services 16-MAR-07 JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 3 MW0003638021 S. LATZ R. WHITLOW/J MWD RUN 4 MW0003638021 S. LATZ R. WHITLOW/J MWD RUN 5 MW0003638021 S. LATZ R. WHITLOW/J JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 6 MW0003638021 S. LATZ R. WHITLOW/J MWD RUN 7 MW0003638021 S. LATZ S. LATZ # SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: 36 12N 15E 1487 724 MSL 0) 60.00 .00 .00 # WELL CASING RECORD OPEN HOLE CASING DRILLERS ;]05 -O<¡D # f(/5i<r 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING e BIT SIZE (IN) SIZE (IN) DEPTH (FT) 4.125 4.500 13779.0 e # REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH - SUBSEA (TVDSS) . 3. THIS WELL WAS DRILLED OFF OF A WHIPSTOCK IN THE NK-20 WELLBORE. THE TOP OF THE WHIPSTOCK WAS POSITIONED AT 13779'MD/9345'TVDSS. 4. MWD RUNS 1-4 COMPRISED DIRECTIONAL, AND NATURAL GAMMA RAY (PCG) UTILIZING SCINTILLATION DETECTORS. MWD RUN 1 WAS TO TIE-IN TO THE PARENT WELLBORE - THESE DATA WERE MERGED WITH MWD RUN 4 TIE-IN AND MWD DATA. THE WHIPSTOCK WAS POSITONED DURING MWD RUN 2. MWD RUN 3 WAS TO KICK-OFF THE SIDETRACK. NO DATA ARE PRESENTED FOR MWD RUN 2; ONLY SROP DATA ARE PRESENTED FOR MWD RUN 3. 5. MWD RUNS 5-7 COMPRISED DIRECTIONAL, DUAL GAMMA RAY (GM) UTILIZING GEIGER- MUELLER TUBE DETECTORS, AND ELECTROMAGNETIC WAVE RESISTIVITY PHASE-4(EWR4). EWR PASS DATA WERE ACQUIRED OVER THE UPHOLE SECTION WHILE RIH FOR RUN 5. THESE MAD DATA WERE MERGED WITH RUN 5 MWD DATA - NO SEPARATE MAD PRESENTA- TION IS INCLUDED. 6. DEPTH SHIFTING OF MWD DATA WAS WAIVED PER E-MAIL DATED 2/1/2007 FROM DOUG DORTCH (SAIC/BP) TO BUSTER BRYANT (SDS), QUOTING AUTHORIZATION FROM CHRIS STONE (BP GEOSCIENTIST). MWD DATA ARE CONSIDERED PDC. 7. MWD RUNS 1-7 REPRESENT WELL NK-20A PB1WITH API#: 50-029-22429-70. THIS WELL REACHED A TOTAL DEPTH(TD)OF 15175'MD/9380'TVDSS. SROP SMOOTHED RATE OF PENETRATION WHILE DRILLING. SGRC SMOOTHED GAMMA RAY COMBINED. SGRD SMOOTHED NATURAL GAMMA RAY. SEXP SMOOTHED PHASE SHIFT-DERIVED SHALLOW SPACING) . SESP = SMOOTHED PHASE SHIFT-DERIVED SPACING) . SEMP = SMOOTHED PHASE SHIFT-DERIVED SPACING) . SEDP = SMOOTHED PHASE SHIFT-DERIVED SPACING) . SFXE = SMOOTHED FORMATION EXPOSURE TIME. RESISTIVITY (EXTRA RESISTIVITY (SHALLOW RESISTIVITY (MEDIUM RESISTIVITY (DEEP $ e e File Header Service name............ .STSLIB.001 Service Sub Level Name. . . Version Number.......... .1.0.0 Date of Generation.. .... .07/03/16 Maximum Physical Record. .65535 File Type............ '" .LO Previous File Name...... .STSLIB.OOO Comment Record FILE HEADER FILE NUMBER: EDITED MERGED MWD Depth shifted DEPTH INCREMENT: # FILE SUMMARY PBU TOOL CODE GR RPS FET RPD RPX RPM ROP $ 1 and clipped curves; all bit runs merged. .5000 START DEPTH 13510.0 13770.0 13770.0 13770.0 13770.0 13770.0 13804.5 STOP DEPTH 15131.5 15142.0 15142.0 15142.0 15142.0 15142.0 15175.5 # BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) --------- EQUIVALENT UNSHIFTED DEPTH ------- BASELINE DEPTH $ # MERGED DATA SOURCE PBU TOOL CODE MWD MWD MWD MWD MWD $ # REMARKS: BIT RUN NO 3 4 5 6 7 MERGED MAIN PASS. $ MERGE TOP 13804.5 13845.0 14026.5 15080.0 15096.0 MERGE BASE 13845.0 14026.5 15080.0 15096.0 15175.5 # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet Data Reference Point.......... ... . Undefined Frame Spacing....... ....... ..... ..60 .1IN Max frames per record............ .Undefined Absent value. . . . . . . . . . . . . . . . . . . . . . -999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD OHMM 4 1 68 4 2 RPM MWD OHMM 4 1 68 8 3 RPS MWD OHMM 4 1 68 12 4 RPX MWD OHMM 4 1 68 16 5 FET MWD HOUR 4 1 68 20 6 GR MWD API 4 1 68 24 7 ROP MWD FT/H 4 1 68 28 8 e e First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 13510 15175.5 14342.8 3332 13510 15175.5 RPD MWD OHMM 0.09 2000 39.1511 2745 13770 15142 RPM MWD OHMM 0.11 2000 29.6875 2745 13770 15142 RPS MWD OHMM 0.16 2000 36.6555 2745 13770 15142 RPX MWD OHMM 0.35 2000 25.8757 2745 13770 15142 FET MWD HOUR 0.18 59.43 5.90301 2745 13770 15142 GR MWD API 25.5 1172.37 103.475 3244 13510 15131.5 ROP MWD FT/H 0.29 555.92 65.2186 2743 13804.5 15175.5 First Reading For Entire File......... .13510 Last Reading For Entire File.......... .15175.5 File Trailer Service name............ .STSLIB.001 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type........ ..... ...LO Next File Name. ......... .STSLIB.002 Physical EOF File Header Service name............ .STSLIB.002 Service Sub Level Name... Version Number........ ...1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type............... .LO Previous File Name...... .STSLIB.001 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE ROP $ 2 header data for each bit run in separate files. 3 .5000 START DEPTH 13804.5 STOP DEPTH 13845.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: 07-APR-05 Insite 7.75 Memory 13845.0 13805.0 13845.0 .0 .0 # TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER e $ # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type.... ......... .....0 Data Specification Block Type... ..0 Logging Direction..... ... ....... ..Down Optical log depth units.......... .Feet Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record............ . Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O 3.750 13779.0 Flo Pro 8.60 65.0 9.2 52000 6.4 .000 .000 .000 .000 Name Service Order DEPT ROP MWD030 Units Size Nsam Rep Code Offset Channel FT 4 1 68 0 1 FT/H 4 1 68 4 2 Name Service Unit DEPT FT ROP MWD030 FT/H Min 13804.5 2.46 Max 13845 34.99 First Reading For Entire File...... ... .13804.5 Last Reading For Entire File.......... .13845 File Trailer Service name........ .... .STSLIB.002 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type........... .... .LO Next File Name........ ...STSLIB.003 Mean 13824.8 27.8211 Nsam 82 82 e .0 145.9 .0 .0 First Reading 13804.5 13804.5 Last Reading 13845 13845 e Physical EOF File Header Service name............ .STSLIB.003 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type............... .LO Previous File Name...... .STSLIB.002 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 3 e header data for each bit run in separate files. 4 .5000 START DEPTH 13510.0 13845.5 STOP DEPTH 13996.5 14026.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): 08-APR-05 Insite 7.75 Memory 14027.0 13845.0 14027.0 47.5 90.1 TOOL NUMBER TLG015 4.125 13779.0 Flo Pro 8.60 65.0 9.2 24000 6.4 .000 .000 .000 .000 .0 141. 7 .0 .0 e e EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction................ . Down Optical log depth units.......... .Feet Data Reference Point......... .... . Undefined Frame Spacing.................... .60 .1IN Max frames per record............ .Undefined Absent value. .................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Service Order units FT API FT/H Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Name DEPT GR ROP MWD040 MWD040 Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 13510 14026.5 13768.3 1034 13510 14026.5 GR MWD040 API 25.5 1172.37 156.954 974 13510 13996.5 ROP MWD040 FT/H 0.69 82.21 32.9957 363 13845.5 14026.5 First Reading For Entire File...... ....13510 Last Reading For Entire File.......... .14026.5 File Trailer Service name............ .STSLIB.003 Service Sub Level Name... Version Number.. ........ .1.0.0 Date of Generation..... ..07/03/16 Maximum Physical Record. .65535 File Type............... .LO Next File Name.......... .STSLIB.004 Physical EOF File Header Service name. ........... .STSLIB.004 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type............... .LO Previous File Name...... .STSLIB.003 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE RPM 4 header data for each bit run in separate files. 5 .5000 START DEPTH 13770.0 STOP DEPTH 15050.5 RPD FET RPS RPX GR ROP $ e 13770.0 13770.0 13770.0 13770.0 13997.0 14027.0 15050.5 15050.5 15050.5 15050.5 15035.5 15080.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE GM EWR4 $ BOTTOM) TOOL TYPE Dual GR ELECTROMAG. RES IS. 4 # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction.. .... ......... ..Down Optical log depth units.... .......Feet Data Reference Point............ ..Undefined Frame Spacing.................... .60 .1IN Max frames per record............ . Undefined Absent value. . . . . . . . . . . . . . . . . . . . . . -999 Depth units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O e 10-APR-05 Insite 4.3 Memory 15080.0 14027.0 15080.0 87.9 101.9 TOOL NUMBER 78005 178424 4.125 13779.0 Flo Pro 8.60 65.0 9.1 24000 6.2 .120 .000 .170 .150 65.0 153.0 65.0 65.0 e e Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD050 OHMM 4 1 68 4 2 RPM MWD050 OHMM 4 1 68 8 3 RPS MWD050 OHMM 4 1 68 12 4 RPX MWD050 OHMM 4 1 68 16 5 FET MWD050 HOUR 4 1 68 20 6 GR MWD050 API 4 1 68 24 7 ROP MWD050 FT/H 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 13770 15080 14425 2621 13770 15080 RPD MWD050 OHMM 0.09 2000 35.586 2562 13770 15050.5 RPM MWD050 OHMM 0.11 2000 29.5602 2562 13770 15050.5 RPS MWD050 OHMM 0.16 2000 33.5568 2562 13770 15050.5 RPX MWD050 OHMM 0.35 2000 23.0551 2562 13770 15050.5 FET MWD050 HOUR 0.18 39.08 4.69333 2562 13770 15050.5 GR MWD050 API 29.69 128.49 78.0339 2078 13997 15035.5 ROP MWD050 FT/H 0.29 555.92 74.4892 2107 14027 15080 First Reading For Entire File......... .13770 Last Reading For Entire File... ....... .15080 File Trailer Service name............ .STSLIB.004 Service Sub Level Name... Version Number......... ..1.0.0 Date of Generation... ... .07/03/16 Maximum Physical Record. .65535 File Type. .............. .LO Next File Name.... ..... ..STSLIB.005 Physical EOF File Header Service name....... ......STSLIB.005 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation..... ..07/03/16 Maximum Physical Record. .65535 File Type.. . . . . . . . . . . . . . . LO Previous File Name...... .STSLIB.004 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR FET RPX RPD RPS RPM ROP $ 5 header data for each bit run in separate files. 6 .5000 START DEPTH 15036.0 15051.0 15051. 0 15051. 0 15051.0 15051.0 15080.5 STOP DEPTH 15051.5 15062.0 15062.0 15062.0 15062.0 15062.0 15096.0 e # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE GM EWR4 $ BOTTOM) TOOL TYPE Dual GR ELECTROMAG. RESIS. 4 # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type. ........ ....... ..0 Data Specification Block Type... ..0 Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units......... ..Feet Data Reference Point....... ..... ..Undefined Frame Spacing........ ........ .....60 .1IN Max frames per record............ . Undefined Absent value. .................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type. ..0 e 12-APR-05 Insite 4.3 Memory 15096.0 15080.0 15096.0 92 .4 92.4 TOOL NUMBER 78012 178424 4.125 13779.0 Flo Pro 8.60 65.0 9.0 38000 8.8 .080 .050 .150 .140 80.0 144.0 73.0 50.0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD060 OHMM 4 1 68 4 2 RPM MWD060 OHMM 4 1 68 8 3 RPS MWD060 OHMM 4 1 68 12 4 RPX MWD060 OHMM 4 1 68 16 5 FET MWD060 HOUR 4 1 68 20 6 GR MWD060 ROP MWD060 e 4 4 API FT/H e 1 68 1 68 24 28 7 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 15036 15096 15066 121 15036 15096 RPD MWD060 OHMM 35.33 78.06 62.0613 23 15051 15062 RPM MWD060 OHMM 21. 81 40.72 32.6243 23 15051 15062 RPS MWD060 OHMM 17.85 29.99 24.8217 23 15051 15062 RPX MWD060 OHMM 14.19 20.85 18.1222 23 15051 15062 FET MWD060 HOUR 49.07 49.79 49.4487 23 15051 15062 GR MWD060 API 77.98 95.3 88.7594 32 15036 15051. 5 ROP MWD060 FT/H 1.1 43.57 13.2109 32 15080.5 15096 First Reading For Entire File.... ..... .15036 Last Reading For Entire File.......... .15096 File Trailer Service name............ .STSLIB.005 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type............... .LO Next File Name.......... .STSLIB.006 Physical EOF File Header Service name............ .STSLIB.006 service Sub Level Name... Version Number.......... .1.0.0 Date of Generation..... ..07/03/16 Maximum Physical Record. .65535 File Type.............. ..LO Previous File Name...... .STSLIB.005 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR RPX RPD FET RPM RPS ROP $ 6 header data for each bit run in separate files. 7 .5000 START DEPTH 15052.0 15062.5 15062.5 15062.5 15062.5 15062.5 15096.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : STOP DEPTH 15131.5 15142.0 15142.0 15142.0 15142.0 15142.0 15175.5 12-APR-05 Insite 4.3 Memory e 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 VENDOR TOOL CODE GM EWR4 $ BOTTOM) TOOL TYPE Dual GR ELECTROMAG. RESIS. 4 # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type.... ..... ....... ..0 Data Specification Block Type... ..0 Logging Direction....... ........ ..Down Optical log depth units......... ..Feet Data Reference Point.. ........... .Undefined Frame Spacing.. .................. .60 .1IN Max frames per record............ .Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O 15175.0 15096.0 15175.0 92.3 92.5 TOOL NUMBER 78012 178424 4.125 13779.0 Flo Pro 8.60 65.0 9.0 40000 5.3 .060 .000 .200 .090 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD070 OHMM 4 1 68 4 2 RPM MWD070 OHMM 4 1 68 8 3 RPS MWD070 OHMM 4 1 68 12 4 RPX MWD070 OHMM 4 1 68 16 5 FET MWD070 HOUR 4 1 68 20 6 GR MWD070 API 4 1 68 24 7 ROP MWD070 FT/H 4 1 68 28 8 Name Service Unit Min Max Mean Nsam e 66.0 155.9 56.0 45.0 First Reading Last Reading e e DEPT FT 15052 15175.5 15113.8 248 15052 15175.5 RPD MWD070 OHMM 5.96 2000 92.9437 160 15062.5 15142 RPM MWD070 OHMM 5.52 359.71 31.3027 160 15062.5 15142 RPS MWD070 OHMM 5.51 2000 87.9744 160 15062.5 15142 RPX MWD070 OHMM 3.46 2000 72.155 160 15062.5 15142 FET MWD070 HOUR 1. 01 59.43 19.0134 160 15062.5 15142 GR MWD070 API 29.67 222.59 111.272 160 15052 15131.5 ROP MWD070 FT/H 1. 23 121. 38 45.6877 159 15096.5 15175.5 First Reading For Entire File...... ....15052 Last Reading For Entire File.. ..... .., .15175.5 File Trailer Service name............ .STSLIB.006 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .07/03/16 Maximum Physical Record. .65535 File Type.. .... ......... .LO Next File Name.. ........ .STSLIB.007 Physical EOF Tape Trailer Service name......... ... .LISTPE Date.................... .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name............ ... . UNKNOWN Continuation Number. .... .01 Next Tape Name...... .... . UNKNOWN Comments........... ..... .STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .07/03/16 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name............... . UNKNOWN Continuation Number..... .01 Next Reel Name.......... . UNKNOWN Comments................ .STS LIS writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File
