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210-021
STATE OF ALASKA ' II,LASKA OIL AND GAS CONSERVATION COMMI N 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 ® Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 210-021 • 3. Address: P.O.Box 196612 Anchorage, Development 11 Exploratory 0 • AK 99519-6612 Stratigraphic ❑ Service ❑ 6. API Number: 50-029-21156-02-00 7. Property Designation(Lease Number): ADL 0028260 • 8. Well Name and Number: PBU S-18B 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: n PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 15183 I feet Plugs measured feet true vertical 9048 • feet Junk measured feet N O V 1 2 Z x i 15 t�a.� Effective Depth: measured 15141 feet Packer measured 11551 feet true vertical 9031 feet Packer true vertical 8769.07 feet G CC Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 77 20"x 30" 36-113 36-113 0 0 Surface 3017 13-3/8"72#L-80 35-3052 35-2684 4930 2670 Intermediate 10904 9-5/8"47#L-80 32-10936 32-8353 6870 4760 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 13472-13502 feet 13530-13560 feet 13560-13590 feet 13590-13620 feet 14250-14950 feet 15030-15140 True vertical depth: 8989-8993 feet 8996-8998 feet 8998-8999 feet 8999-9000 feet 8993-8978 feet 8995-9031 Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr8 30-11544 30-8764 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: ' .ANWO:j Ind 2, 16 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 60 42 331 1592 220 Subsequent to operation: Shut-In 160 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: a Daily Report of Well Operations ® Exploratory 0 Development m Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil 0 • Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR 0 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 0 s' '1/ Phone +1 907 564 4424 Date 11/11/15 Form 10-404 Revised 5/2015 i 2 , ( / RBDMS (,NOV 16 2015 Submit Original Only • S a) Q. o C:) 0 r� co 0 0 — cc) in in C N LO r� N- O N o 0 0 0 0 s- CO ti M CO pp v c00o - coo M V co r-- 00 `00 0 CO Ln N CO CO CO CO C) C)) N- N CO CO CO 00 CO H N N CO M LU N CO CO — O M CO M N N a) CO CO co CO CO LO N 00 NI- co co LM O O O O O N- CO In co p M N- V M i 'Cr CO V O N co LU N v. °I O ,^ co co M O co _ V, r r Et O O 0o co co 00 00 _ JJ J co CO OM r d c *k J .N N It CN co CO O0 N O N U CO I I a)ti N N- m C o rn CO ` J W CC ~ o)O — C H W o U W D Q 0 a LL I a Z Z W LU W LU m O D ,H Z_ Z_ Z D U C) z J J J • Packers and SSV's Attachment PBU S-18B SW Name Type MD TVD Depscription S-18B PACKER 10764.14 8231.77 7" Baker ZXP Top Packer S-18B TBG PACKER 11551.38 8769.07 4-1/2" Baker ZXP Packer S-18B PACKER 11785 8914.64 3-1/2" Baker 45 KB Packer • • CO• - a' = 0 vi _o _�� � --=- � Co 0 O ° (1) Q co CO U (0 = 0 -0 ' a) � m c � 0 a. a) a) o U 0 ' -) 0 Q o c o -6 c 'C O 4) o) a) U .o _ -. (� M L co as M � U Lo N cL C c L ) VJ u) L Lo co O 5 O O .0 2 Q a ° O N- E > N-- 0 c O 1oL O t 0 3 co a) MCD O eL O I .+. co -4- o_.c O E o p co 'a_a O c coQ' a) i N osO O 6 NO a) cn -6 J O o N Z N V a) v i a) 0 o_ _i ca � I o_ Q E U + o o_0 ct U CO -0 as C N Ca Q c6 -a w 6 - N U O j ca • E a) L 2 a) = c 0 N (0 0 c 00 0 0 Q Q � o d � a) p2 p N ) ca r•-• � � o a EO c O � � o = N I D- °- o,O om CL iii cr) 5 C o o y- a) co Po. a) * * o pp M c * ; cfl p * * CC Q a 000 * _ - M 3 m« � � o © I * M c .0 `e) io M N _r_ Q c-7-..) M C) a Q O M V a co a) N Q N- I cM- N O,_ 00 :."..O �_ 4 N O d �O a) n_ V '- O Ce L Q A- CN O > >, > a) cm L O > af o_c ,coo ii a) o o RS 0 naCt0 < Z0CrUQ ' . MCrUQ _ -p -3ON V � w a) N- U * to fl U � UE o UELr)o � E � O ` nQ o0 ' . � � 81 0 wco ina a) coM C J DC7QOQPc- L r �JL - L - OU tO 0 0 a) ,- p) a) 0 a) � 0 a) 0 a) p � '— a) 0 a) C a E --3 o —° 0 � ao oo �30 m0o am � aa) taa) cc c , c ` o* c a) ca o ci cIQUI c3 .- * = a) cn ,- U 0__cO o > m CDO ° O > oYI- a) _c � UF- mUa, UI- aUI o o a) * Ha) Vo co 0-QD n a) � 020 - 4- a) a) ? co * *UO2vEmsUO * a cBJC * UO * x 2a_ UO * a_ ° 5 * J• ,- w I- < 10 0 0 o O >- N N N N N CO 10 CO COCNI V _0 ,- co d' .- — m co .- O O O O 0 Q TREE= FLS II)WELLFEAD= 13-5/8"CNV S-1 8B SJAIIILTES: WELL ANGLE>70°@ 11975'. ACTUATOR= BAKER C FITIAL KB.EI_EV= 7519 BF.E3_EV= 39-89 I I KOP= 900' 2093 —4-1/2"FES X NP,D=3.813" Max Angle= 101°@ 12261' I Datum ND= 11714' 20"COND 110' GAS LFT MANDRELS Datum TVD= 8800'SS ST Iii) TVD DEV TY FE VLV LATCH PORT DATE 13-3/8"CSG,72#,L-80,ID=12.347' H 30 56' A i 6 3876 3724 46 kaC-M.DOW FOC 16 04/02/14 5 5702 4516 46 MIAG-NI CMY FE 0 07/25/12 4 7199 5533 45 1443-M DONE IRK 16 04/02/14 3 8528 6530 37 I4AG-M DAY RK 0 03/14/13 2 9813 7527 38 PAIG-M SO RK 22 06/23/14 TOP OF 7"LM H 10764' \ 1 11184 8523 47 KBG2-9 DMY _ BK 0 06/23/14 9-5/8"CSG,47#,L-80 BUTT,I)=8.681" — -10960 10764' H7'X 9-5/8"BKR ZXP LIP,ID=7.500" Inn-Fs-ma<(08/21/02) — 10960'" 10780' i--17-X 9-5/8'BKR 1-ILIC HGR,C=6.280' FALLOUT VVIDOW(S-18A)10936'-10952' Minimum ID = 1.78" @11798' I 11463' — 4-1/2'FES X NP,V=3.813" DEPLOY SLV w/PLUG HOLDER BUSHING 1 , 11484' — 7"X 4-1/2'BKR S-3 PKR,ID=3.875" 11508' — 4-1/2'HES X NP,D=1813' I 11529' I— 4-1/2"FOES X NP,13=3.813' TOP OF 4-1/2"UR —I 11540' k, . 11540' —7-X 5"BKR ZXP LTP w/HMG F/GR D=4.400' 4-1/2"TBG,12.6#,13CR-80 VAM TOR —1 11544' r ..,, 11544' H 4-1/2'WLID EG, =3.958" .0152 W,13=3.958" ,,, 11565' —15"X 4-1/2"XO,0=3.958" 7"LM,26#,L-80 BTC,.0383 bpf,ID=6276" H 11705' I-41. 0.7...... p.m. 11785' 4-1/2"KB LINR TOP FKR,0=2.370'" ESTIMATED TOP OF amair —1 11792' Ir "• 0 11792' —3,70"BTT DEPLOY SLV,D=locr uir 4 TOP OF 2-3/8'LNR — 11808' kj % 11798' —low BTT DEPLOY SLEEVE w/PLUG HOLDER BUSTING,V=1.78' Vi&WSTOCK(02/08/11) H 13161' . :44,--------...., • 11987' 1—RESTRICTION(04/04/10) n• ,•• 4-1/2'LP,12.8#,L-80 M-BTC,.0152 bpf,0=1958" — -13172 r• ., • .4 I • • .• 0 • 12677' I—4-1/2"MAFSQ3RJT PERFORATION SUMMARY • •4 I • REF LOG:LEE GR/CCL ON 02/22/11 • •• ti •• • •• i • ANGLE AT TOP PERE 82° t., 13472' • •4 II •• • ,4 Note:Refer to Production Ce for historical pert data • ••• 1,4_LOUT VITEOW(S-18E3)13162'-13172 SIZE SPF INTERVAL Opn/Sqz SNOT SQZ i - • N . 1,56'. 6 13472- 13502 0 10/15/15 .* 1.56"r 6 13530- 13590 0 10/14115 1.56' 6 13590- 13620 0 10/13/15 I 1.56' 6 14250-14950 0 02/24/11 1.56'' 6 15030-15140 0 02/24/11 I _ .4 R3TD — 15141' •• ,•_1 2-3/8"LW,4.6#,13CR MI,.0039 bpf,ID=1.995" —1 15179' '— DATE REV BY COMMBYTS - DATE REV BY COMMENTS FRU-DE BAY LNT 08/16185 AUDI 2 ORIGINAL COMPLETION 11/03/15 SREYJN) ADFIRFS(10/13-15/15) 'MIL S-18B 09/03/02 D14 SIDETRACK(S-18A) PERMT No: ' 100210 02/28/11 NORDIC 1 CTD SIDETRACK(S-18B) AR 143: 50-029-21156-02 03/11/11 GRC/PJC BF ELEVATION CORRECTION SEC 35,T12N,R12E,2314'R•1_&711'FW.. 04/04/11 MK/RIC FNAL DRLG CORRECTIONS ' 06/25/14 TilS/JM) GLV 00(06/23/14) - BP Exploration(Alaska) • a 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. c2I - 0 o4 I_ Well History File Identifier Organizing (done) ❑ Two -sided III 111111 I II I (IIII ❑ Rescan Needed II 1E11 II 11111 RESCAN DIGITAL DATA OVERSIZED (Scannable) olor Items: ❑ Diskettes, No. ❑ Maps: ❑ Greyscale Items: Other, No/Type: G P ' i ®* ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non - Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: C Date: IQ / V/D..._. /s/ f V i f Project Proofing I 1111 BY: Maria Date: CO $ / D., /s/ MP Scanning Preparation . x 30 = 60 + I 4- = TOTAL PAGES 7 / �� / n (Count does not include cover sheet) , n ,t BY: Maria Date: ■ / d- /s/ �/� Production Scanning 1111 111111 1111 Stage 1 Page Count from Scanned File: 7 (Count does include cov sheet) Page Count Matches Number in Scanning Preparation: YES NO 9 g BY: 4" Date: 66. A. /s/ P Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. III 111111111 I ReScanned 1111 1111111111111 BY: Maria Date: /s/ Comments about this file: Quality Checked III IIIIII III IIII III 10/6/2005 Well History File Cover Page.doc . RECEIVED STATE OF ALASKA AKA OIL AND GAS CONSERVATION COM ION JAN 2 9 2013 REPORT OF SUNDRY WELL OPERATIONS AOGCC 1. Operations Abandon U Repair Well U Plug Perforations U Perforate U Other U Performed: Alter Casing ❑ Pull Tubing Stimulate - Frac ❑ Waiver ❑ Time ExtensionD Change Approved Program ❑ Operat. Shutdown❑ Stimulate - Other El Re -enter Suspended WeII❑ 2. Operator 4. Well Class Before Work: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc Developments Exploratory ❑ 210 -021 -0 3. Address: P.O. Box 196612 Stratigraphic❑ Service ❑ 6. API Number: Anchorage, AK 99519 -6612 • 50- 029 - 21156 -02 -00 7. Property Designation (Lease Number): 8. Well Name and Number: . ADL0028260 �'_ 1 �r ' . W 1 PBU S -18B 9. Logs (List logs and submit electronic and printed data per 20 • A C25.071): 10. Field /Pool(s): . To Be Submitted PRUDHOE BAY, PRUDHOE OIL 11. Present Well Condition Summary: , Total Depth measured 15183 feet Plugs measured None feet true vertical 9047.73 feet Junk measured None feet Effective Depth measured 15141 feet Packer measured See Attachment feet true vertical 9031.06 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 75 20" 91.1# H-40 35 - 110 35 - 110 1530 520 Surface 3021 13 -3/8" 72# L -80 34 - 3055 34 - 2685.51 4930 2670 Intermediate None None None None None None Production 10927 9 -5/8" 47# L -80 33 - 10960 33 - 8369.75 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 14250 - 14950 feet 15030 - 15140 feet True Vertical depth 8993.07 - 8978.23 feet 8994.62 - 9030.67 feet SCANNED MAR 0 5 2013 Tubing (size, grade, measured and true vertical depth) 4 -1/2" 12.6# 13Cr80 32 - 11544 32 - 8764.23 Packers and SSSV (type, measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12. Stimulation or cement squeeze summary: Intervals treated (measured): 14250' - 14950' 15030' - 15140' Treatment descriptions including volumes used and final pressure: 108 BBL 60/40 METH, 405 1% KCL W /.06% SAFELUBE, 520 3% NH4CL W/ .002% F -103, 150 DIESEL, 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 511 250 403 1526 237 Subsequent to operation: 0 0 0 0 0 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Explorator U Development © Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil , El Gas U WDSPLU GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUG❑ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: N/A Contact Nita Summerhays Email Nita.Summerha s • b•.com Printed Name Nita Summerhays Title Petrotechnical Data Technician �,∎ /mil �� �� /� 4/"././ ��j�, -011■ Phone 564 -4035 Date 1/24/2013 RBDMS JAN 3 0 2013 Agin. V 2 J 3 ,, �3 Form 10 -404 Revised 10/2012 Submit Original Only • S Daily Report of Well Operations ADL0028260 r ,�..�.w,w„ SUMMARY CTU 8 w/ 1.5" CT Scope; Act. im. rrive on ocation, spo urn in 1/7/2013 begin rig up. «< Job continued on WRS 01- 08 -13 »> **Job continued from WRS 01- 07 -13 ** CTU 8 w/ 1.5" Cl Scope; Acid Stim. Rig up. Perfom weekly Bop test. RIH w/ BHA; 1.5" ctc, dfcv, two 1.5" 1/8/2013 stingers, 1.5" big hole nozzle (oal= 13.3') * *job in progress ** « <Job continued from WSR 01- 08 -13 »> CTU 8 w/ 1.5" CT Scope; Acid Stim. Initial IA psi 1872 bleed IA below 100psi. WH psi 1850, knock down well head pressure down backside. Rig IA line to choke to bleed down. RIH w/ BHA; 1.5" ctc, dfcv, two 1.5" stingers, 1.5" big hole nozzle (oal= 13.3') tag fill @ 15116', PUH. Load well down CTBS with 188 bbls NH4CL and 150 bbls diesel. Park coil at top perf at 14250' Pumped 30 bbls pre -flush swapped to 12% HCL. As HCL exit nozzle began to RIH. Wt ck at 14500 was max pull (29k). cont to pull slowly to top of liner while pumping 1st acid stage. Park coil at 11750'. pump remaining 1/9/2013 schedule above liner top. * *job in progress ** « <Job continued from WSR 01- 09 -13 »> CTU 8 w/ 1.5" CT Scope; Acid Stim. Initial IA psi 1872 bleed IA below 100psi. WH psi 1850, knock down well head pressure down backside. Rig IA line to choke to bleed down. RIH w/ BHA; 1.5" ctc, dfcv, two 1.5" stingers, 1.5" big hole nozzle (oal= 13.3') tag fill @ 15116', PUH. Load well down CTBS with 188 bbls NH4CL and 150 bbls diesel. Park coil at top perf at 14250' Pumped 30 bbls pre -flush swapped to 12% HCL. As HCL exit nozzle began to RIH. Wt ck at 14500 was max pull (29k). cont to pull slowly to top of liner while pumping 1st acid stage. Park coil at 11750'. pump remaining schedule above liner top. Freeze protect coil. Performed injectivity @ 1/10/2013 4bbls min. 1500 psi. IA 930, OA 218. RDMOL * *Job complete ** FLUIDS PUMPED BBLS 108 60/40 METH 405 1% KCL W /.06% SAFELUBE 520 3% NH4CL W/ .002% F -103 150 DIESEL 120 FRESH WATER 120 TOTAL Casing / Tubing Attachment ADL0028260 Casing Length Size MD TVD Burst Collapse CONDUCTOR 75 20" 91.1# H-40 35 - 110 35 - 110 1530 520 LINER 941 7" 26# L -80 10764 - 11705 8231.68 - 8866.87 7240 5410 LINER 1632 4 -1/2" 12.6# L -80 11540 - 13172 8761.59 - 8950.81 8430 7500 LINER 3348 2 -3/8" 4.6# L -80 11792 - 15140 8918.56 - 9030.67 11200 11780 PRODUCTION 10927 9 -5/8" 47# L -80 33 - 10960 33 - 8369.75 6870 4760 SURFACE 3021 13 -3/8" 72# L -80 34 - 3055 34 - 2685.51 4930 2670 TUBING 11512 4 -1/2" 12.6# 13Cr80 32 - 11544 32 - 8764.23 8430 7500 • • • • Packers and SSV's Attachment ADL0028260 SW Name Type MD TVD Depscription S -18B PACKER 10764 8159.39 9 -5/8" Baker ZXP Packer S -18B PACKER 11484 8652.17 4 -1/2" Baker S -3 Perm Packer S -18B PACKER 11540 8689.3 5" Baker ZXP Top Packer S -18B PACKER 11785 8842.35 4 -1/2" KB Packer TREE = 41/16 CM/ • SAFE.TES: WELL ANGLE> 70•@ 11973'. WELLHEAD= 13 -5/8" CMr ► S -18 B ACTUATOR = AXLESON , 1 KB. ELEV = 75.29 BF. ELEV = 39-89 1 KOP= 900' • I 2093' H4 -1/2" HES X NIP, ID = 3.813" I M a x Angle = 1 0 1 ' 1 2 2 6 1 ' Datum MD = 11714' I2' CONDUCTOR I 110' GAS LET MANDRELS Datum TVD = 8800' SS ST MD TVD DEV TYPE VLV LATCH PORT DATE ' 6 3876 3224 46 MMG-M DOME RK 16 07/25/12 1 113 -3/8" CSG, 729, L -80, ID = 12.347" H 3055' 5 5702 4516 46 NIMG -M DMY RK 0 07/25/12 4 7199 5533 45 AWG -M DMY RK 0 03120/10 3 8528 6530 37 MMG-M DOME RK 16 07/25112 2 9813 7527 38 NMG -M DM)" RK 0 03120/10 (TOP OF 7" LNR H 10764' 1 11184 8523 47 KBG2 -9 SO BK 20 07/25/12 1 9-5/8" CSG, 479, L -80 BUTT, D= 8.681" H -10960 - [WHIPSTOCK (08/21/02) H 10960' 10764' H 7" X 9-5/8" BKR ZXP LTP, D = 7.500" I 10780' H 7" X 9 -5/8" BKR HMC HGR, 0= 6.280" I MLLOUT WINDOW (S- 18A)10936 - 10957 I Minimum ID = 1.78" @ 11798' ( 11463' H 41/2" HES X NIP, D= 3.813 "I DEPLOY SLV wt PLUG HOLDER BUSHING C I 11484' H r X 4 -112" BKR S -3 PKR, D= 3.875" I I 11508' H 4-1/7' HES X NIP, D = 3.813" I I I 11529' H 41/7' HES X MP, 10 = 3.813" I I TOP OF 412" LNR H 11540' I 11540' H7" X 5" BKR ZXP LTP w / HNC HGR D = 4.400" I 4 -1/2" TBG, 12.69, 130R -80 VAM TOP, —I 11544' I 11544' H 41/2" WLEG, D = 3.958" I .0152 bpf, ID= 3.958" 11565' HT X 4-1/2" X0, 0= 3.958" I 17" LNR, 269, L -80 BTC, .0383 bpf, ID = 6.276" H 11705' I__4 ■ -. , , 11785' 41/7' KB LM PM, P, ID = 2.370" I I EST�VIAT ® TOP OF CEMENT H 11792' I 11792' H 3.70" BTT DEPLOY SLV, ID = 3.00" I I TOP OF 2 -3/8" LNR H 11808' ■ • 11798' }— 3.00" BTT DEPLOY SLEEVE t 4 w/ PLUG HOLDER BUSHNG, D =1.78" I WHIPSTOCK (02/08/11) H 13161' • 11987' I- f RESTRICTION (04/04/10) I • 14112 LNR 12.61, L -80 M-BTC, .0152 bpf, 0 = 3.956 H —13172 �• �• • • i • i ` L 12677' H4112' MARKER JTI 1.4 • i• ■• . PERFORATION SUMMARY • . • • • • ■ REF LOG: LEE GR/ CCL ON 02/22/11 1.4 % I • ANGLE AT TOP PERF: 95° 14250 1 .4 M LLOUT WINDOW (5.188) 13162' -13177 Note: defer to Production DB for historical pert data . 11 4 SIZE SPF INTERVAL Opn/Sqz DATE 1.56" 6 14250 - 14950 0 2/24/2011 I 1.56" ' 6 15030 - 15140 0 02124/11 I W. I PBTD H 15141' I • I2 -3/8" LNR, 4.69, 13CR STL, .0039 bpf, ID = 1.995 H 15179' i♦ DATE REV BY COMMENTS DATE REV BY CONVENTS PRUDHOE BAY UNIT 08/16/85 AUDI 2 ORIGINAL COMPLETION ' 04/04/11 MK/PJC FINAL DRLG CORRECTIONS WELL: S-18B 09/03102 D14 SIDETRACK (S -18A) 04/08/11 GCR/PJC PERF CORRECTION (02/24/11) PERMIT No: s 2100210 02/28/11 NORDIC 1 CTD SIDETRACK (S -18B) ; 07/26/12 MSS/JM) GLV C/O (07/25/12) API No: 50- 029 - 21156 -02 03/08/11 PJC DRLG DRAFT CORRECTIONS ' SEC 35, T12N, R12E, 2314' FNL 8 711' FWL 03/11/11 GRCIPJC BF ELEVATION CORRECTION 03/28/11 JCMVPJC GLV C/O (3/11/11) BP Exploration (Alaska) RECEIVED ` STATE OF ALASKA AllikA OIL AND GAS CONSERVATION COMMON DEC 1 12012 REPORT OF SUNDRY WELL OPERATIONS AOGCC 1. Operations Abandon L] Repair Well Li Plug Perforations U Perforate [J Other Lf Performed: Alter Casing ❑ Pull Tubing0 Stimulate - Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat. Shutdown❑ Stimulate - Other EfiCa• Re -enter Suspended Well❑ 2. Operator 4. Well Class Before Work: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc Development el Exploratory ❑ „ 210 -021 -0 3. Address: P.O. Box 196612 Stratigraphic❑ Service ❑ 6. API Number: Anchorage, AK 99519 - 6612 " 50- 029 - 21156 -02 -00 ' 7. Property Designation (Lease Number): ., v f 8. Well Name and Number: ADL0028260 >�;95 ?. l tI 1.3 PBU S -18B 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field /Pool(s): ^ To Be Submitted PRUDHOE BAY, PRUDHOE OIL 11. Present Well Condition Summary: Total Depth measured 15183 feet Plugs measured None feet true vertical 9047.73 feet Junk measured None feet Effective Depth measured 15141 feet Packer measured See Attachment feet true vertical 9031.06 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20" 91.1# H -40 32 - 112 32 - 112 1530 520 Surface 3020 13 -3/8" 72# L -80 32 - 3052 32 - 2683.56 4930 2670 Intermediate None None None None None None Production 10917 9 -5/8" 47# L -80 32 - 10949 32 - 8362.03 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 14250 - 14950 feet 15030 - 15140 feet True Vertical depth 8993.07 - 8978.23 feet 8994.62 - 9030.67 feet Tubing (size, grade, measured and true vertical depth) 4 -1/2" 12.6# 13Cr80 31 - 11545 31 - 8764.88 Packers and SSSV (type, measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12. Stimulation or cement squeeze summary: Intervals treated (measured): SCANNED 14250'- 14950', 15030'- 15140' MAR 11 2013 Treatment descriptions including volumes used and final pressure: 115 Bbls 12% HCL, 78 Bbls 9:1 Mud Acid, 1790 psi. 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 286 175 91 1314 220 Subsequent to operation: 355 234 97 1728 334 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Explorator10 Development 0 " Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil .... 151 Gas U WDSPLJ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUCJ 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 Garry Catron Email Garry.Catr BP.Com Printed Name Garry Catron Title PDC PE Signature Phone 564 -4424 Date 12/10/2012 il t3R' \AP DEC 13 1011 m 7 ,4 /2 . ii. Form 10 -404 Revised 10/2012 1 /;/(1(.2---' Submit Original Only • • Packers and SSV's Attachment ADL0028260 SW Name Type MD TVD Depscription S -18B PACKER 11485 8652.84 4 -1/2" Baker S -3 Packer S -18B PACKER 11537 8687.33 4 -1/2" Baker ZXP Packer S -18B PACKER 11785 8842.35 3 -1/2" Baker 45 KB Packer • Casing / Tubing Attachment ADL0028260 Casing Length Size MD TVD Burst Collapse CONDUCTOR 80 20" 91.1# H-40 32 - 112 32 - 112 1530 520 LINER 941 7" 26# L -80 10765 - 11706 8232.38 - 8867.49 7240 5410 LINER 4367 4 -1/2" 12.6# L -80 11541 - 15908 8762.25 - 9337.29 8430 7500 LINER 38 2 -3/8" 4.6# L -80 15141 - 15179 9031.06 - 9046.13 11200 11780 PRODUCTION 10917 9 -5/8" 47# L -80 32 - 10949 32 - 8362.03 6870 4760 SURFACE 3020 13 -3/8" 72# L -80 32 - 3052 32 - 2683.56 4930 2670 TUBING 11514 4 -1/2" 12.6# 13Cr80 31 - 11545 31 - 8764.88 8430 7500 • • I • • Daily Report of Well Operations ADL0028260 SUMMARY T /I /O= 1910/1910/190. Temp = SI. TIFL PASSED. (pre- Acid). ALP @ 1910 psi & SI @ IA casing valve. IA FL @ 5935', 233' below sta #5, SO (318 bbl). Bled IAP from 1910 psi to 650 psi in 3 hours, TP decreased 180 psi to 1730 psi & OAP decreased 30 psi to 160 psi during IAP bleed, no change in IA FL during bleed. Monitor for 1 hour. TP increased 30 psi to 1760 psi, IAP increased 10 psi to 660 psi w/ no change in IA FL & no change in OAP. Final WHP's = 1760/660/160. Job Complete. 5/18/2012 SV & WV = C. MV &SSV = O. IA & OA = OTG. NOVP. 15:25 ** *WELL S/I ON ARRIVAL** *(pre acid) DRIFTED WITH 1.75" 1 -1/2" SAMPLE BAILER TO 11,923' SLM STOP DUE TO DEVIATION (no sample) PERFORMED SBHPS AS PER PROGRAM (GOOD DATA) RAN 4 -1/2" WHIDDON CATCHER SUB AND SAT DOWN AT 1436' SLM (tools came back covered in paraffin) LRS CURRENTLY PUMPING DIESEL DOWN TBG FOR BRUSH & FLUSH 7/23/2012 ** *JOB CONTINUED ON 7/24/12 * ** T /I /0= 1828/1830/184 Temp =SI Assist SS -Line w/ Brush and Flush (GAS LIFT - -FOR RATE) Pumped 55 bbls of 180* diesel down Tbg while SLine brushed. ** *Job Cont to 7- 7/23/2012 24 -12 WSR * ** * ** JOB CONTINUED FROM 7/23/12 * ** ( gl- for -rate) RAN 3.50" GAUGE RING & 4 -1/2" BRUSH TO 11,200' SLM, ENCOUNTERED SEVERAL TIGHT SPOTS, LRS PUMPED 180 BBLS OF HOT DIESEL, FLOWED WELL RAN 3.70" GAUGE RING & 4 -1/2" BRUSH TO 11,773' SLM, TIGHT SPOT FROM 9300' SLM TO 11540' SLM, LRS PUMPED 145 BBLS OF HOT DIESEL, FLOWED WELL RAN 3.802" GAUGE RING & 4 -1/2" BRUSH, WORKED TOOLS DOWN TO 11,773' SLM (TOP OF LINER), LRS PUMPED 150 BBLS OF HOT DIESEL 7/24/2012 ** *JOB CONTINUED ON 7/25/12 WSR * ** * ** JOB CONTINUED FROM 7/24/12 WSR * ** ( gl- for -rate) PULL ST #1 BK -DGLV © 11170' SLM /11184' MD, PULL ST #3 RK -DGLV @ 8514' SLM/8528' MD PULL ST #5 RK -OGLV @ 5685' SLM /5702' MD PULL ST #6 RK -LGLV @ 3858' SLM/3876' MD SET ST #6 RK -LGLV @ 3858' SLM (3876' MD) & SET ST #3 RK -LGLV @ 8514' SLM/8528' MD SET ST #5 RK -DGLV @ 5685' SLM /5702' MD SET ST #1 BK -OGLV @ 11170' SLM/11184' MD PULL WHIDDON CATCHER SUB FROM 11774' SLM 7/25/2012 * ** *WELL LEFT S/I ON DEPARTURE, PAD -OP NOTIFIED * * ** T /I /O= 220/1460/220. Temp= 84 °. TIFL ** *PASSED * ** (Pre acid stim). AL online. IA FL @ 10520', 664' above Sta #1 OGLV (563 bbls). SI WV & AL casing valve. Stacked out Tbg to 1620 psi w/ AL gas in 3 hrs. IAP increased 20 psi & IA FL inflowed 280' to 10240'. Bled IA from 1330 psi to 500 psi (to production) in 3 hrs. TP decreased 110 psi, OAP decreased 60 psi & IA FL inflowed 210' to 10030'. Monitored for 1 hr. TP & OAP unchanged, IAP increased 10 psi & IA FL inflowed 70' to 9960'. Job complete. Final WHPs= 1510/510/180. 8/3/2012 SV & WV =C. SSV & MV =O. IA & OA =OTG. NOVP. 0445 hrs. • • Daily Report of Well Operations ADL0028260 T /I /0= 210/1920/250 Temp= SI H.O.T. Tbg (H.O.T. Wash) Pumped 5 bbls neat meth and 33 bbls of hot crude as Tubing pressured to 3000 psi. (Tubing obstructed) Well thaw portion of job was cancelled due to the history of grease services required to make the IA valve leak tight for flange removal. Final WHP= 1256/1952/289. SV,WV - closed 8/19/2012 SSV, MV, IA,OA,AL - open T /I /O = 1480/2000/190. Temp = SI. Bleed IAP to 0 psi (Pre IA valve C /O). AL SI @ casing valve. ALP = 2150 psi. IA FL @ 10510', 674' above Sta #1 OGLV (563 bbls). Bled IAP from 2000 to 200 psi (to production) in 6 hrs. Bled IAP to OT from 200 psi to 0+ psi in 8 hours. During bleed TP decreased 700 psi, IA FL unchanged. SI AL lateral valve and bled AL to 0 psi. Monitored for 30 min, IAP increased 1 psi, AL increased 200 psi. Grease crew serviced AL lateral and casing valves. Job complete. Final WHPs = 750/1/190. 9/8/2012 SV, WV = C. SSV, MV = 0. IA, OA = OTG. NOVP. 04:00 hrs. T /I /O = 880/3/190. Temp =SI. Bleed IAP to 0 psi (Pre IA casing valve c /o). AL is connected, SI @ lateral, WH choke, and casing valve. ALP =1950 psi. TP increased 130 psi, IAP increased to 2 psi. IA FL @ 10,510' (674' above sta #1, SO, 580 bbls). Bled ALP from 1950 psi to 0 psi in 5 min. Bled IAP from 3 psi to 0 psi in 1 hr, held open bleed on IA for 6 hrs. Monitor for 30 min. ALP increased 250 psi, and IAP increased to 0 +. Job complete. Final WHPs= 880/0 +/190. 9/8/2012 SV WV= Closed. SSV MV =O en. IA,OA=OTG. NOVP. (1630 hrs). T /I /O = 200/8/120. Conduct PJSM. SI IA valve (18 -1/2 turns) and performed LTT. (passed). Rigged up VR lubricator with VR plug #24. PT'd lubricator to 200 -300 psi. low for 5 min. (passed) and 3500 psi. high for 5 min. (passed). Set VR plug, bled off pressure and performed 5 min. LTT. (passed). PT'd VR plug to 200 -300 psi. low for 5 min. (passed) and 3500 psi. high for 5 min. (passed). Tests charted and documented. Removed lubricator and old IA valve. Installed new IA valve. Torqued to API specs (1- 1/8" L7M 523 ft. Ibs.).installed lubricator and PT'd valve against VR plug to 200 -300 psi. low for 5 min. (passed) and 3500 psi. high for 5 min. (passed). Tests charted and documented. SI valve (18 -1/2 turns), and rigged down lubricator. Installed tapped blind flange and torqued to API specs. PT'd flange to 2500 psi. for 5 min. (passed). Charted 9/9/2012 and documented. Job complete. Continue job from 09 -09 -12 T /I /O = 1090/14/112 Temp = SI ( Hot to thaw) Pumped 0.8 bbls of meth in Tbg and it walked right up to 2500 psi. Job turned into Hot down the IA (planned) Spear in IA with 5 bbls of meth followed by 583 bbls of 180* crude then swapped to 300 bbls of 200* 1% Kcl to thaw Tbg. Pumped 5 meth down Tbg followed by 152 bbls of 180* crude for H.O.T 9/10/2012 Continue WSR on next day Continued from 09 -10 -12 ** *DRILL: Uncontrolled Fire * ** T /I /0 = 1004/2/126 Temp = SI ( HOT to thaw) ** *Previous day pumped 583 bbls of crude down IA and 300 1% kcl to get ice plug and 152 bbls of crude for Tbg HOT * ** Pumped 585 bbls of 180* crude down IA to sweep all 1% kcl out of IA. Pump 60 bbls crude down FL © 180 *. FWHP= 520/440/140. Swab & wing shut. Master, SSV, IA, & 9/11/2012 OA open. T /I /0 = 440/1450/160. Temp = 74 °. WHPs & IA FL (pre TIFL). AL online. IA FL near surface. 9/15/2012 SV = Closed. WV, SSV, MV = Open. IA & OA = OTG. NOVP. 21:33 T /I /0 = 250/1770/190. Temp = 80 °. Warm TIFL ** *PASSED ** *(pre Acid Stem). AL online. IA FL @ 11184 (sta #1, s /o). SI WV & stacked out Tbg with ALP to 1920 psi in 1 hour. Bled IAP from 1920 psi to 890 psi in 2.5 hours. During bleed TP decreased 50 psi. IA FL unchanged. Monitored for 1 hour, WHPs and IA FL unchanged. Job complete. Final WHPs = 1870/830/190. 9/17/2012 SV, WV = Closed. SSV, MV = Open. IA & OA = OTG. NOVP. 01:50 Daily Report of Well Operations ADL0028260 T /I /0= 1450/1400/220 Temp =80 *f Injectivity Test (Pre Acid stim) Pumped 5 bbls 60/40 meth, 217 bbls crude down Tbg to perform Injectivity test. Rates are as follows: 1 bpm @ 900 psi, 1.5 bpm @ 840 psi, 2 bpm @ 760 psi, 2.5 bpm @ 440 psi and 3 bpm @ 217 psi. Freeze protected Tbg with 40 bbls 60/40 meth. Final WHPs Vac/1356/220 9/29/2012 SV,WV= Shut SSV,MV,IA,OA= Open ASRC Unit 4 ** *Started on WSR 10 -30- 2012 * ** Move Unit to GBR (Deadhorse), Perform 10/31/2012 Unit Maintenance * ** ASRC Unit 4 ** *Continued From WSR 10/31/2012 * ** Move Unit to S -Pad, S/B for DSO, Weather and Equipment issues, Rig Up, Unit Maintenance ** *Continued on WSR 11/1/2012 11/2/2012 ASRC Unit 4 ** *Continued From WSR 11/1/2012 * ** S/B for Weather, R/U ** *Continued 11/2/2012 on WSR 11/3/2012 * ** ASRC Unit 4 ** *Continued From WSR 11/2/2012 * ** R /U, Restraints, P/T ** *Continued 11/3/2012 on WSR 11/4/2012 * ** ASRC Unit 4 ** *Continued From WSR 11/3/2012 * ** R/U complete, S/B for Acid Pump 11/4/2012 crew ** *Continued on WSR 11/5/2012 * ** ASRC Unit 4 ** *Continued From WSR 11/4/2012 * ** S/B for Acid Pump crew 11/5/2012 ** *Continued on WSR 11/6/2012 * ** T /I /0= 1200/1215/145 SI Assist ASRC /SLB in Acid Stimulation (ACID) Pumped 5 bbls meth followed by 36 bbls NH4CI + F103, 36 bbls 12% HCI, 143 bbls NH4CI + F103, 2 bbl meth to flush out surface lines. ASRC on well upon departure. Valve positions =SV WV 11/6/2012 SSV closed MV open CVs OTG FWHP= 600/1220/195 ASRC Unit 4 ** *Continued From WSR 11/6/2012 * ** S/B for Acid Pump crew & SB for 11/7/2012 A/L, PoP Flow well , SI ** *Continued on WSR 11/8/2012 * ** ** *Continue WSR from 11- 07 -12 * ** T /I /O= 1649/1629/110 Assist ASRC testers (Obj: Acid stim) RU to testers hardline and FP test unit outlet line and S -40 flowline with 48 5 bbls of 60/40 meth from CH2 tanker #39011. RU to S -18B and Pumped 620 bbls of crude down IA to load for pre -acid stim. Rig down from IA, rig up to ASRC hardline. Pumped 290 bbls of crude down Tbg for mud acid displacement. ASRC in control of WH at time of departure. ssv, mv,ia, oa= open wv, sv= closed DSO notified upon departure 11/8/2012 FWHP= 1650/1002/180 Pump second stage of 2 stage Acid Treatment with 2 wax beed diversions: Pump 285 bbls of 3% NH4CI w/ .2% F -103, 79 bbls of 12% HCI w/ L66 and 78 bbls of 9% HCI w/ 1% HFI. Pump 2 wax beed diversions. Both diversion gave a noticeable increase in V pump pressure as the diversion came in contact with the perfs. Job continued with displacement pumped by LRS and carried on the LRS AWGRS Pump Report. FWHP= 700/863/280 11/8/2012 ASRC Unit 4 ** *Continued From WSR 11/8/2012 * ** S/B for Pump Stimulation part of 11/9/2012 Job, Pop, flow well ** *Continued on WSR 11/10/2012 * ** ASRC Unit 4 ** *Continued From WSR 11/9/2012 * ** flow well ** *Continued on WSR 11/10/2012 11/11/2012*** ASRC Unit 4 ** *Continued From WSR 11/10/2012 * ** flow well ** *Continued on WSR 11/11/2012 11/12/2012*** T /I /0= 500/1460/250 Temp= SI Assist well tester (Acid) Rigged up to ASRC hard line. Pumped 3 bbls meth spear, 180 bbls 110* crude down tbg of well S -18. Pumped 42 bbls meth down F/L of well S -40 to freeze protect for testers. Testers on well at departure 11/12/2012 Final WHP's 0/1460/240 11/13/2012 ASRC Test Unit #4. POP and flow well • • • Daily Report of Well Operations ADL0028260 ASRC Test Unit #4, Continue WSR from 11/13/12, flow well. Continue on WSR 11/15/12 11/14/2012 Inlet S -18, Outlet S -40 ASRC Test Unit #4 IL S -18, OL S -40 Continue WSR from 11/14/12, flow well. Complete 11/15/2012 8 hr test, R/D Continue on WSR 11/16/12 ASRC Test Unit # 4 IL S -18, OL S -40 * **Continue WSR from 11/15/12 * ** RDMO. 11/16/2012 ** *Completed on WSR 11- 1612012 * ** TREE = 4 -1/15' CM/ • SAFEYTES: WELL ANGLE> 70° ft 11976'. WELLHEAD= 13 -5i8 '" S S-18B ACTTOR = AXLESON KB. ELEV = 75.29 BF. ELEV = 39-89 1 I 1 KOP = - 900' ' I 2093' H4-1/2" HES X MP 0 = 3.813" 1 Max Angle = 1 0 1 ° Datum MD = 11714' 120. CONDUCTOR 1 110' GAS LIFT MANDRELS Datum TVD = 8800' SS ST MO TVD DEV TYPE VLV LATCH PORT DATE ` 6 3876 3224 46 N11AG -M DOME RK 16 07/25/12 1 13 -3/8" CSG, 72#, L -80, ID = 12.347" H 3055' 11--J 5 5702 4516 46 MVIG -M DMY RK 0 07/25/12 4 7199 5533 45 MMG -M DMY RK 0 03/20/10 3 8528 6530 37 MMG-M DOME RK 16 07/25/12 2 9813 7527 38 M11i1G -M DMY RK 0 03/20/10 1TOPOF7" LN21 --1 10764' J 1 11184 8523 47 KBG2 -9 SO BK 20 07/25/12 (95/8 CSG, 47 #, L-80 BUTT, ID = 8.681" H 10960 10764' I--17" X 9-5/8" BKRZXP LTP, ID = 7.500" 1 1 WHIPSTOCK (0821/02) H 10960' 10780' H7" X 9 -5/8" BKR HMC HGR, ID = 6.280" 1 MILLOUT WINDOW (S- 18A)10936' - 10952 I Minimum ID = 1.78" @ 11798' 1 11463' H 4-1/2" HES X NIP, ID = 3.813" DEPLOY SLV w! PLUG HOLDER BUSHING CR c 11484' 7" X 4-1/2' BKR S -3 PKR, ID = 3.875" 1 ' 1 11508' 1-1 4 -1/2" HES X NIP, O = 3.813" 1 ' 1 11629' H 4-1/2" HES X NIP, ID = 3.813" 1 (TOP OF 4-1/7' LNR H 11540' 1 11540' 1--1 7' X5" BKR ZXP LTP w / HMC HGR, I0 = 4.400" 1 4-1/2" TBG, 12.6#, 13CR -80 VAM TOP, —I 11544' 1 11644' H 4-1/2" WLEG, ID = 3.958" 1 .0152 bpf, ID = 3.958" 11565' H5" X 4-1/2" XO, ID = 3.958' 1 1 7" LNR, 26#, L -80 BTC, .0383 bpf, ID = 6.276" H 11705' IL 10_4 .- 11785' 4-1/2" KB LNR TOP PKR, ID = 2.370" 1 1 E TMATED TOP OF CE ENT H 11792' '• •• 11792' H3.70" BTT DEPLOY SLV, ID = 3.00" I 1 X t TOP OF 2 -3/8" LNRi-1 11808' 11798' 1— 3.00 BTT DEPLOY SLEEVE f w / PLUG HOLDER BUSHING, ID = 1.78" 'WHIPSTOCK (02/08111) 13161' ► • • 11987' H RESTRICTION (04/04/10) 1 • 14-1/2" LNR 12.6#, L MFBTC:, .0152 bpf, ID = 3.958" H —13172 • 0 0 • 4 • I 12677' H4-1/7" MARKER JT I ►4 • *' • PERFORATION SUMMARY 11 • . REF LOG: LEE GR/ CCL ON 02/22/11 11 !� ANGLE AT TOP PERF: 95° 14250' 1 11 � ' MILLOUT WINDOW (5 -188) 13162 - 13172' • Note: Refer to Production DB for historical perf data , SIZE SPF INTERVAL Opn/Sqz DATE 1.56" 6 14250 - 14950 0 2/242011 1 1.56' ' 6 15030 - 15140 0 02/24/11 1 • • 1 PBTD H 15141' 1 • 12 -3/8" LNR, 4.6#, 13CR STL, .0039 bpf, ID = 1.995" H 15179' . • •� • DATE REV BY CONMBVTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 08/16/85 AUIJI 2 ORIGINAL COMPLETION 04/04/11 MK/PJC FINAL DRLG CORRECTIONS WELL: S-18B 09103/02 D14 SIDETRACK (S -18A) 04/08/11 GCR/PJC PERF CORRECTION (0224/11) PERMIT No: "2100210 02128/11 NORDIC 1 CTD SIDETRACK (S -18B) 07/26/12 MSS/JMD GLV C/0 (07/25/12) API No: 50- 029 - 21156 -02 03/08/11 PJC DRLG DRAFT CORRECTIONS SEC 35, T12N, R12E, 2314' FNL & 711' FWL 03/11/11 GRC/PJC BF ELEVATION CORRECTION 03/28/11 JCM/PJC _GLV CJO (3/11/11) BP Exploration (Alaska) DATA SUBMITTAL COMPLIANCE REPORT 6/12/2012 Permit to Drill 2100210 Well Name /No. PRUDHOE BAY UNIT S -18B Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 21156 -02 -00 MD 15183 TVD 9048 Completion Date 2/28/2011 Completion Status 1 -OIL Current Status 1 -OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional SurveyCes DATA INFORMATION Types Electric or Other Logs Run: MWD, DIR, RES, GR, GR / CCL / CNL (data taken from Logs Portion of Master Well Data Maint Well Log Information: • Log/ Electr Data Digital Dataset Log Log Run Interval OH / Type d /Frmt Number Name Scale Media No Start Stop CH Received Comments Rpt . / Directional Survey 13180 15183 Open 3/25/2011 13180 -15183 ED" C Asc Directional Survey 13180 15183 Open 3/25/2011 13180 -15183 Log See Notes 25 Blu 11100 15143 Case 4/4/2011 Mem DDL, LEE GR, CCL ED r%C Pds 20846 See Notes 11100 15143 Case 4/4/2011 Mem DDL, LEE GR, CCL ED(/C Las 14631 Induction /Resistivity 12940 15183 Open 5/12/2011 ROP, GR, Res plus CGM & PDF graphics Log Li Induction /Resistivity 25 Col 13162 15183 Open 7/14/2011 MD Induction Resistivity GR Log Li Induction /Resistivity 5 Col 13162 15183 Open 7/14/2011 TVD Induction Resistivity GR Log Gamma Ray 25 Col 13162 15183 Open 7/14/2011 MD GR Log- Gamma Ray 5 Col 12930 15170 Open 7/14/2011 MD Depth Shift Monitor Plot ED v C Lis 14687 Induction /Resistivity 12937 15183 Open 7/13/2011 LIS OH data MPR GR • Verification listing plus PDF CGM graphics Rpt ' LIS Verification 12937 15183 Open 7/13/2011 Verification listing for 14687 ED LVC Lis 21074 See Notes 11100 15143 Case 6/27/2011 Memory Depth Determination GR /CCL Well Cores /Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments DATA SUBMITTAL COMPLIANCE REPORT 6/12/2012 Permit to Drill 2100210 Well Name /No. PRUDHOE BAY UNIT S -18B Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 21156 -02 -00 MD 15183 TVD 9048 Completion Date 2/28/2011 Completion Status 1 -OIL Current Status 1 -OIL UIC N ADDITIONAL INFORMATION / 1 Well Cored? Y N Daily History Received? /�GV1� N Chips Received? Y / N Formation Tops l_%'' N Analysis Received? Comments: Compliance Reviewed By: - -- - - -- Date: — - - • BAKER HUGHES - www'bakerhughes.com o West 795 East 94t^ Avenue Anchorage, AK 99515 Tel: 907- 267 -6612 Fax: 907-267-6623 g July 13, 2011 ='= �.!,3 Li I Attention: Christine Mahnken ems: State of Alaska - AOGCC 333 West 7th Avenue Suite 100 Anchorage, AK 99501 Subject: Final Log Distribution — BP Exploration (Alaska), Inc. S -18B Prudhoe Bay Unit North Slope Boroug h, AK API #: 50-029-21156-02 Rig: Nordic -2 S0 #: 3644578 Please find enclosed the following final deliverables for the above well: 4_ Ce4 of ('QI r Printe (to follow) j• . S uryQy Report p v 1 Data CD C Lg 7 We sincerely appreciate the opportunity to provide our products and services to you and look forward to working with you in the future. Should you have any questions, you can contact me at (907) 267 -3420. Regards, Jim Woods Geoscience Advisor Enclosures JW /dh 06/23/2011 Z1 flI If Schhenderger No. 5755 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Stephanie Pacillo 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD 01 -34A BBSK -00069 PPROF W/ DEFT 29- May -11 1 1 09 -08 BGH4 -00054 INJECTION PROFILE 25- May -11 1 1 01-20 BINC -00032 SCMT 25- May -11 1 1 U -12A BD88 -00110 MEMORY PPROF W1DEFT 30- May -11 1 1 A -08 BBSK -00070 INJECTION PROFILE 1-Jun-11 1 1 L -122 BLPO -00103 MEMORY LEAK DETECT LOG 8- Jun -11 1 1 MPF -80 BJGT -00040 USIT 10-Jun-11 1 1 H -27A BD88 -00117 PPROF WlDEFT AND GHOST 10-Jun-11 1 1 3- 29/J-32 BP5G -00015 CROSSFLOW 27- Apr -11 1 1 ID W -207 BG4H -00050 INJECTION PROFILE WI WFL 16- May -11 1 1 5 jooi PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Alaska Data & Consulting Services Sr Petrotechnical Data Center LR2 -1 2525 Gambell Street, Suite 400 900 E. Benson Blvd. Anchorage, AK 99503 -2838 JUN P 7 2011 1 IP bp Date 05 -12 -2011 Transmittal Number:93192 BPXA WELL DATA TRANSMITTAL Enclosed are the materials listed below. (BPXA FIELD LOG DATA) If you have any questions, please contact Doug Dortch at the PDC at 564 -4973 Delivery Contents 1 CD -ROM Containing Field Log Data & Electronic Log Prints for the following wells: 15- 11CPB1 0t0- gi 404, 18 -13C r1 to -tt4 l�G A -39A 010 - 1t5 F -28B atv -1!o' /qC0c91 S -01C 4.l0 -1'44 141113o S -18B Q10-DaI t�ltr3 t S -129 - 129PB1 f S- 129P62 910 -(3 a 11 Please ' , and Return one copy of this transmittal. Thank You, Doug Dortch Petrotechnical Data Center = } Attn: State of Alaska - AOGCC Attn: Christine Shartzer 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 Petrotechnical Data Center LR2 -1 900 E. Benson Blvd. PO Box 196612 Anchorage, AK 99519 -6612 03/30/11 Schlumberger NO. 5715 Alaska Data 8 Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil 8 Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job 0 Log Description Date BL Color CD P1 -07A BJGT -00020 PRODUCTION PROFILE c3() �.. 03/05/11 1 � [)�/ 1 S -1813 BL65 -00020 MEMORY DDL )' lc, -(1 a 02/22/11 1 �/ 4 1 13 -09 BG4H -00035 LDL `) , r? w �'(— f 02/20/11 1 V 1 09 -02 BBSK -00052 RST 1 ( Z _ 0 L ( 02/16/11 1 p•41 1 D -16A BG4H -00034 RST Q� — t .5 02/19/11 1 A' rl,C 1 • • PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc Alaska Data & Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambell Street, Suite 400 900 E Benson Blvd Anchorage, AK 99503 -2838 • A tfi.Igk 0.9 F' k ; It, r97/n.R *R, 'r • STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: ® Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned ❑ Suspended 1b. Well Class: 20AAC 25.105 20AAC 25.110 ® Development ❑ Exploratory ❑ GINJ ❑ WINJ ❑ WAG ❑ WDSPL ❑ Other No. of Completions One ❑ Service ❑ Stratigraphic 2. Operator Name: 5. Date Comp., Susp., or Aband.: 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 2/28/2011 210 - 021 3. Address: 6. Date Spudded: 13. API Number. P.O. Box 196612, Anchorage, Alaska 99519 - 6612 2/10/2011 50 - 029 - 21156 - 02 - 00 4a. Location of Well (Governmental Section): 7. Date T.D. Reached: 14. Well Name and Number: cT0 Surface: 2/18/2011 PBU S -18B 2314' FNL, 711' FWL, SEC. 35, T12N, R12E, UM 8. KB (ft above MSL): 72 29 15. Field / Pool(s): Top of Productive Horizon: Prudhoe Bay Field / Ba 527' FNL, 974' FWL, SEC. 11, T11N, R12E, UM GL (ft above MSL): 38.49' Y Bay Total Depth: 9. Plug Back Depth (MD +TVD): Oil Pool 1044' FNL, 2388' FWL, SEC. 11, T11N, R12E, UM 15141' 9031' 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD +TVD): 16. Property Designation: Surface: x - 618885 y - 5979169 Zone- ASP4 15183' 9048' ADL 028257 & 028260 TPI: x- 619298 y- 5970402 Zone- ASP4 11. SSSV Depth (MD +TVD): 17. Land Use Permit: Total Depth: x- Zone - P 620722 Y- 5969908 ASP4 None 18. Directional Survey: 121 Yes ❑ No 19. Water depth, if offshore: 20. Thickness of Permafrost (TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900' (Approx.) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re- Drill/Lateral Top Window MD/TVD: MWD DIR, RES, GR, GR / CCL / CNL 13166' 8951' 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" x 30" Insulated Conductor Surface 110' Surface 110' 36" 8 cu vds Concrete 13 -3/8" 72# L -80 S rface 3055' Surface 2686' 17 -1/2" ' 265 cu ft Permafrost 9- :" 47# -:. rf -_ 1••.•' : 3' 1 -1/4" -1•A• ft I -_'' _ • _ ' -_'_' 7" 26# L -80 10764' 11705' 8232' 8867' Mill 36 cu ft Class 'G' _ -: • 1 4•' .' :7. ' : • 1' 1 ,r - ti•. 1•1:* ' - 13Cr / L-80 �� 9 :91 ' iMI�� _ ✓ 24. Open to production or injection? ® Yes ❑ No 25. TUBING RECORD If Yes, list each interval open SIZE DEPTH SET (MD) PACKER SET (MD / TVD) (MD +TVD of Top & Bottom; Perforation Size and Number): 1.56" Gun Diameter, 6 spf 41/2 ", 12.6#, L - 80 11544' 11484' / 8725' MD TVD MD TVD 14250' - 14950' 8993' - 8978' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 15030' - 15140' 8995' - 9031' w Ct)i ,r ., ) 4 DEPTH INTERVAL (MD)1 AMOUNT AND KIND OF MATERIAL USED r , . `` • 2500' Freeze Protected w/ 41 Bbls of Diesel `1 0 /t 27. PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): March 18, 2011 Gas Lift _ Date of Test: Hours Tested: Production For OIL -BBL: GAS-MCF: WATER -BBL: CHOKE SIZE: GAS -OIL RATIO: 3/19/2011 8 Test Period ♦ 910 392 53 128 _ 431 Flow Tubing Casing Press: Calculated OIL -BBL: GAS -MCF: WATER -BBL: OIL GRAVITY-API (CORR): Press. 1,800 140 24 -Hour Rate ♦ 2,730 1,176 158 Not Available 28. CORE DATA Conventional Core(s) Acquired? ❑ Yes ® No Sidewall Core(s) Acquired? ❑ Yes No If Yes to either question, list formations and intervals cored (MD +TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory anal s per 20 AAC 250.071. None RBDAAS ASR ' cdg Form 10-407 Revised 12/2009 CONTINUED ON REVERSE � /� � Original �y G ttOT ,t� , • III 29. GEOLOGIC MARKERS (List all fomrations and markers encountered): 30. FORMATION TESTS NAME MD TVD Well Tested? ❑ Yes ® No Permafrost Top If yes, list intervals and formations tested, briefly summarizing test Permafrost Base results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Sadlerochit / Zone 4B 13472' 8989' None Formation at Total Depth (Name): Sadlerochit / Zone 4B 13472' 8989' 31. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 32. I hereby certify that the L foregoin is true and correct to the best of my knowledge. Signed: Terrie Hubble ' f�,( Title: Drilling Technologist Date: (1 PBU S - 18B 210 - 021 Prepared By Name/Number. Teale Hubble, 564-4628 Well Number Permit No. / Approval No. Drilling Engineer: Cody Hinchman, 564 -4468 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item la: Classification of Service Wells: Gas Injection, Water Injection, Water-Altemating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI (Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50-029- 20123-00 -00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut -In, or Other (explain). Item 28: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 12/2009 Submit Original Only • • • Notes:- America - ALASKA -- BP : Page T of 18 Operation Sumnmar Report'. Common Well Name: S -18 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28 /2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 ©75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT 1 NPT Depth Phase ( Description of Operations (hr) (ft) 2/6/2011 02:00 - 08:00 6.00 MOB P PRE ;PREP RIG TO MOVE TO S -PAD 08:00 - 20:30 ! 12.50 MOB P PRE 1 MOVE RIG TO S -PAD 2/7/2011 03:00 - 03:30 0.50 RIGU P PRE 1 ACCEPT NORDIC 2 RIG AT 0;1.00 f BACK OVER WELL AND SET RIG DOWN. 1 03:30 - 04:30 1.00 RIGU 1 P PRE 1N/D TREE CAP. 04:30 - 07:30 3.00 RIGU 1 P PRE ! N /tJ BOPS , 107:30 - 10:30 3.00 RIGU 1 P PRE • 1 START SHELL TEST OF BOPS DOWN TO TWC. CONDUCT RIG EVAC DRILL AND AAR. 10:30 - 18:00 7.50 BOPSUR P PRE `BOP TEST. WITNESS WAIVED BY AOGCC 1 OFFICIAL CHUCK SCHEVE. 1 j ;TEST ALL RAMS, CHOKE VALVES, TIW !VALVE y 18:00 - 19:00 1.00 BOPSUR % P 1 PRE 1 PU INJECTOR TO TEST PACK OFF AND INNER rG'S� REEL VALVE TO COMPLETE BOP TEST 19:00 - 19:45 0.75 RIGU P WEXIT I BOP TEST COMPLETED 1 REVERSECIRCULATE SLACK 19:45 - 22:00 2.25 RIGU 1 P PRE ;DID NOT HEAR MUCH MOVEMENT AFTER 3 REVERSE CIRC'S ' - 1 PU INJECTOR AND CHECK FOR WIRE 120:00 STILL HAVE WIRE AT END OF COIL 20:30 SLACK PUMPED, CUT COIL 21:15 CUT 228', MU TEMP CTC AND PUMP WIRE FORWARD ' 21:50 TEST WIRE, GOOD MEG AND CONTINUITY TESTS 22:00 - 23:00 1.00 RIGU 1 P PRE [MU BTT INTERNAL CONNECTOR AND PT BEFORE HEADING UP BHI UQC 23:00 - 23:15 r 0.25 RIGU 1 P PRE PULL & PRESSURE TEST BTT CTC 'GOOD PT 23:15 - 00:00 0.75 RIGU 1 P PRE MU BHI UQC 2/8/2011 00:00 - 00:30 0.50 RIGU 1 P J PRE RIG EVACUATION DRILL 00:30 - 01:00 0.50 RIGU P r PRE BLOW BACK REEL WITH AIR BECAUSE WE WILL NEED BOTH PUMPS TO KILL WELL AND ' _ WON'T BE ABLE TO CIRCULATE THE COIL 01:00 - 04:10 1 3.17 RIGU P PRE PJSM TO PULL TWC 01:30 BRING VALVE CREW LUBRICATOR TO RIG FLOOR AND RU HOSES 02:25 PRESSURE TEST LUBRICATOR 102 :4 5 RETRIEVE TWC 1 03:20 TWC PULLED, PULL ABOVE SSV I 03:30 PT MASTER VALVE, GOOD PT CLOSE SSV AND BLEED OFF 03:45 GOOD LEAK TIGHT TEST, RD VC LUBRICATOR ', 04:10 - 05:50 1 1.67 1 RIGU P PRE 1 PJSM TO BH KILL WELL 104:30 PT NIGHT CAP 104:40 GOOD PT, BH KILL WELL W/ 10 BBLS NEAT METH, 290 BBLS 2% KCL FOLLOWED ' BY POWER -VIS 4.5 BPM © 450 PSI AND INCREASED TO 850 1 1 PSI AT THE END OF THE 290 KCL - - - -- - - -- - - -- Printed 3/30/2011 11:48:35AM - NorttrAmerica`- ALASKA - BP . Page a of 18 ; Operation Summary► }Report Common Well Name: S -18 ' AFE No Event Type: RE- ENTER- ONSHORE (RON) 1 Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay i Site: PB S Pad Rig Name /No.: NORDIC 2 1 Spud Date/Time: 7/27/1985 12:00:OOAM I Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To 1 Hrs 1 Task Code NPT NPT Depth Phase Description of Operations 1 (hr) 05:50 - 06:30 ' 0.67 RIGU P L O PRE 290 BBLS OF KCL AWAY AND PRESSURE i i SLOWLY RISING, SHUT DOWN PUMP AND SEE IF WHP DROPS WHP DROPPED DOWN TO 50 PSI IN 3 1 MINUTES, BACK ON LINE DISPLACING WELL ITO POWER -VIS 06:30 - 07:15 0.75 RIGU P 1 PRE 160 BBLS AWAY WHP /IA/OA= 1165/28/129 PSI @ 4.5 BPM 1 06:35 1220 PSI 195 BBLS AWAY SHUT DOWN + PUMP AND MONITOR WELL 07:15 - 08:15 ; 1.00 WHIP P WEXIT I CREW CHANGE AND MONITOR WELL. 1 I INSTALL CHECK VALVES IN UQC AND [ PRESSURE TEST. 1 08:15 - 09:15 ' 1.00 WHIP P WEXIT DISPLACE KCL FROM THE CT WITH MUD. 1 09:15 - 13:15 4.00 WHIP P � WEXIT CJRC ACROSS TOP (1F WFI I OBSERVE THE FOLLOWING CUMULATIVE LOSSES: 09:15 0 BBLS 09:25 -13 09:30 -20 BBLS 09:40 -29 BBLS - -. 09:50 -37 BBLS 1 10:00 -46 BBLS 10:10 -55 BBLS 110:20 -61 BBLS !LOSSES ARE AROUND 50 -60 BBLS/HR. DISCUSS PLAN FORWARD WITH ADE. FILL WELL EVERY 30 MIN WHILE WAIT ON 1 ORDERS. CALL OUT 2 LOADS OF 2# BIOZAN. • 10:45 FILL WELL WITH 8.6 BBLS 112:15 - 8.7 BBLS __ 1 _ 113:15- 6.6BBLS 13:15 - 13:30 0.25 WHIP P WEXIT I PJSM FOR P/U WHIPSTOCK WELL CONTROL AND OVERHEAD LOADS WERE DISCUSSED. 13:30 - 14:30 1.00 WHIP P WEXIT i M/U BHA #1 - WHIPSTOCK WITH 2 -3/8" 1 1 COILTRAK. 1 BHA OAL = 70.04 FT. 114:30 - 18:00 3.50 WHIP i P ! WEXIT I RIH W/ BHA #1 PUMPING THRU EDC. 10.3 BPM / 700 PSI / 0 RETURNS. 18:00 - 19:45 1.75 WHIP P WEXIT 1 LOG GR TIE -IN FROM 12,460 FT - 12,660 FT. I� MAKE -33.5 FT CORRENCTION. 19:45 - 20:15 0.50 WHIP P WEXIT CONTINUE RIH W/ WHIPSTOCK FOLLOWING TIE -IN. LOG CCL ACROSS WHIPSTOCK SETTING DEPTH. 20:15 - 20:45 0.50 WHIP P WEXIT 1 PUH TO 13,100 FT. EVALUATE CCL LOG ACROSS WHIPSTOCK SETTING DEPTH. 1 CCL SHOWS COLLARS AT 13,141 FT AND 1 1 13,180 FT. 1 1 QECIDE TO SFT TOW AT 13a FT RACFn ON 1 CCL WHICH PUTS ANCH • - 20:45 - 21:00 0.25 I WHIP P WEXIT RIH TO SETTING DEPTH AND ORIENT WS TO 180 TFO. SHUT DOWN PUMP AND CLOSE EDC. PRESSURE UP ON COIL TO 2400 PSI TO SET WHIPSTOCK. SET 5K# DOWN. TOW AT 13,160 FT I ORIENTED LOW SIDE. P!U CLEAN OFF WHIPSTOCK. Printed 3/30/2011 11:48:35AM North America - ALASKA - BP Page 3 Of 18 MOW Operation Summary Report Common Well Name: S -18 AFE No D X3 OOV57 C (2,205,316.00 US Event Type: RE-ENTER- ONSHORE RON Start Date: 2/6/2011 'End Date: Yp (RON) � i Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA j UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) (ft) �- 21:00 - 23:30 2.50 WHIP ; P WEXIT BEGIN TRIP SHEET AND POOH W/ WHIPSTOCK SETTING BHA. I i I 1.1 BPM / 1165 PSI / 0.33 BPM RETURNS. LOSSES ARE —0.25 BPM POOH. 23:00 - ISOLATE PITS AND BEGIN BRINGING ON 2 PPB BIOZAN. 23 :30 - 23:45 0.25 WHIP P WEXIT 1PJSM FOR LAYING DOWN BHA #1. 1 23:45 - 00:00 0.25 WHIP P WEXIT STOP AT 200 FT. AND FLOW CHECK WELL NO FLOW. POP OFF INJECTOR AND PLACE OVER BUNGHOLE. BEGIN UD BHA #1. 2/9/2011 00:00 - 00:30 0.50 WHIP P WEXIT CONTINUE UD BHA #1. FILL HOLE ACROSS THE TOP. TOOK 5 BBLS. 00:30 - 01:00 0.50 STWHIP ! P i WEXIT HOLD AAR FOR UD BHA AND PJSM FOR M/U • WINDOW MILLING BHA. 01:00 - 02:00 1.00 STWHIP P WEXIT f BRING2 JTS. OF 2- 1/16" UP PIPE I ,ELEVATORS. C/O LOWER CHOKE AND TEST - GOOD. I FILL HOLE - TOOK 8 BBLS. M /IJ. BHA #2 CONSISTING OF 3.2" DSM, 3.2" - STRING MILL, 2 -1/8" XTREME MOTOR, 2 JTS 2- 1/16" CSH, AND BAKER INTEQ TOOLS. 02:00 - 04:15 2.25 STWHIP P 1 WEXIT RIH W/ BHA #2. 0.23 BPM AT 857 PSI CIRC. i I START GETTING RETURNS AFTER 5 BBLS PUMPED. LOSING 0.3 - 0.4 BPM WHILE RIH. 04:15 - 05:00 0.75 STWHIP P WEXIT LOG GR TIE -IN FROM 12600 FT. MAKE -32 FT CORRECTION. 05:00 - 05:30 0.50 STWHIP P WEXIT CONTINUE RIH TO TOW PUMPING AT MIN. RATE. TAG WS AT 13163.3 FT. 1 P/U AND BRING PUMPS UP TO 1.58 BPM. RBIH AND TAG AT 13162 FT. `LOST TOTAL OF 82 BBLS ON TIH. STWHIP ----- - - - - -- � — - - - -- — - -- 05:30 - 08:00 2.50 P WEXIT TIME MILL WINDOW FROM 13162 FT 1725 PSI FS AT 1.58 BPM. 75 -100 PSI MW. 0.25K# DHWOB. 408 PSI DIFF. BHP /ECD /PVT: 4411 PSI / 9.56 PPG / 304 BBL. Printed 3/30/2011 11:48:35AM glii North America - ALASKA - BP _ Page of 18 . ' my Mir Operation Summary Report - - - Common Well Name: S -18 � AFE No Event Type: RE- ENTER- ONSHORE (RON) I Start Date: 2/6/2011 1 End Date: :X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay I Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA 1 UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date I From - To I Hrs Task : Code NPT I NPT Depth I Phase Description of Operations (hr) (ft) 08:00 - 18:00 1 10.00 STWHIP : P 1 WEXIT ESTIMATED TOP WNDOW IS 13162.30 FT. CONTINUE TIME MILLING WINDOW. FS = 1740 PSI. 1.50 / 1.09 BPM 08:00 13163.5 FT 1.2K DWOB 1829 PSI 09:00 13164.5 FT 1.25K 1908 PSI 1.50 / 1.09 BPM 10:00 13164.80 FT 1.22K 2000 PSI AFTER 13165 FT MAINTAIN ENOUGH ROP TO I KEEP 1.5 -2.2K DWOB. 11:00 13165.30 FT 1.68K 2000 PSI 12:00 13165.55 FT 1.90K 2040 PSI 1.50 / 1.13 1 BPM 113:00 13165.90 FT 2.06K 2036 PSI 1.50 / 1.13 1 BPM 14:00 13166.11 FT 2.17K 2029 PSI 1.49 / 1.14 ; BPM 15:00 13166.15 FT 2.02K 1992 PSI 1.49 / 1.15 1 BPM I I ■ 16:00 13166.30 FT 1.83K 1967 PSI 1.49 / 1.15 ' I 1 BPM 117:00 13166.80 FT 1.30K 1937 PSI 1.49 / 1.15 _ _ BPM 1 18:00 18:30 1 0.50 STWHIP P WEXIT AN CREW CHANGE OUT. DISCUSS CURRENT 1 OPS AND MAKE RIG ROUNDS. T18:30 - 22:00 3.50 1 STWHIP P I ; WEXIT CONTINUE TIME MILLING WINDOW. 1 1 18:30 13168.10 FT 1.57K 1967 PSI 1.49 / 1.17 BPM 19:30 13169.30 FT 0.34K 1912 PSI 1.49 / 1.17 BPM NOT TAKING AS MUCH WT. AND MAKING FOOTAGE W/ LESS MW. POTENTIAL EXIT AT 113169.3 FT. 1 20:30 13170.20 FT 0.40K 1930 PSI 1.49 / 1.18 BPM 21 :00 13171.00 FT 0.34K 1926 PSI 1.49 / 1.18 BPM 21:15 SAMPLE CONTAINS MAINLY FINE METAL SHAVINGS. 21:30 13171.93 FT 0.29K 1952 PSI 1.56 / 1.25 BPM THEORETICAL EXIT POINT 9.8 FT INTO WINDOW AT 13172.10 FT. ------ - - - - -- -- -- 1 22:00 MILL TO 131 FT. 22:00 - 22:25 0.42 STWHIP P 1 WEXIT BEGIN DRILLING RATHOLE FROM 13172.4 FT. 1 2051 PSI CIRC AT 1.49 / 1.19 BPM. 1.46K# DHWOB. 1 MILL RATHOLE TO 13,181 FT. I GEO CONFIRMS FORMATION IN SAMPLE. 22:25 - 00:00 1.58 STWHIP P WEXIT ' PUMP HI-VIS PILL. BACKREAM WINDOW AND REAM UP /DOWN 3 TIMES AT 1 FPM. SHUT DOWN PUMPS AND DRY DRIFT THRU WINDOW. SEE SLIGHT WT. BOBBLE AT ,13168 FT. CONTINUE DRESSING WINDOW. Printed 3/30/2011 11:48:35AM North America - ALASKA -. BP Page 5 i f to Operation Summary Common Well Name: S -18 ! AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: !X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad I Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM 1 Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA i UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 2/10/2011 00:00 - 01:30 1.50 STWHIP P WEXIT CONTINUE DRESSING WINDOW. SEE SLIGHT WT. BOBBLE AGAIN ON SECOND DRIFT GOING DOWN. CLEAN PASS UP. I REAM WINDOW UP /DOWN. LOSSES HAVE INCREASED SLIGHTLY. 1.60 / 10.98 BPM IN/OUT. I SHUT DOWN PUMPS AND DRIFT WINDOW. - -SEE WT. BOBBLE AT 13,168 FT AGAIN ON DOWN PASS. WORK PROBLEM AREA AND RE -DRIFT _ WINDOW - CLEAN. 01:30 - 03:45 2.25 STWHIP P WEXIT I START TRIP SHEET AND BEGIN POOH. LOSING --0.2 BPM DURING TRIP OOH. 03:45 - 04:00 0.25 STWHIP P WEXIT I PJSM FOR UD WINDOW MILLING BHA. 04:00 - 05:30 1.50 STWHIP P WEXIT I STOP AT 100` AND BREAK -OFF INJECTOR. I UNSTAB COIL AND SET INJECTOR OVER BUNGHOLE. BLOW DOWN BHI TOOLS AND UD WINDOW MILLING BHA j MILL AND STRING REAMER GAUGED 3.2" GO / 3.19" NO -GO. OFF -LOAD BAKER TOOLS DOWN BEAVER I SLIDE AND PREP FOR P/U BUILD BHA. 05:30 - 07:30 2.00 STWHIP P WEXIT i CREW CHANGE AND WALKAROUNDS. j FILL WELL WITH 2 BBLS AT 06:30, 3 BBLS AT 07:00. ✓ GET SOME 3.20 GAUGE RINGS OUT TO THE -- RIG TO GAUGE THE NEW BITS TO BE RUN. REPLACE SEALS ON #1 PUMP PONY RODS. 07:30 - 07:45 0.25 DRILL P PROD1 PJSM FOR PICKING UP BHA #2, FIRST DRILLING BHA. OVERHEAD LOADS AND WELL CONTROL !WERE DISCUSSED. 1 07:45 - 08:30 0.75 DRILL P PROD1 ' M/U BHA #2 - HYC 3.188 X 3.38 BICENTER, 1.3 1 DEG 2 -3/8 MOTOR, 2 -3/8 COILTRACK WITH RES. _ I _ BHA OAL = 67.78 FT. 1 08:30 - 11:10 2.67 DRILL P PROD1 I RIH BHA #2. PUMP 0.32 BPM / 590 PSI THROUGH THE BIT. 11:10 11:40 0.50 DRILL P PROD1 I LOG GR DOWN FROM 12570 FT. ' CORRECT -30 FT. 11:40 - 13:30 1.83 DRILL P PROD1 ■ PASS THROUGH WINDOW AT 180L NO PUMP, I CLEAN PASS. TAG LIGHTLY AT 13180 FT. PULL BACK THROUGH WINDOW AND OPEN 1 EDC, START SWAP TO POWER -VIS DRILLING MUD. I CIRC THROUGH OPEN EDC 1.83 / 1.49 BPM @ 1570 PSI. ECD = 9.67 PPG. 13:30 - 16:00 2.50 DRILL P 1 PROD1 CLOSE EDC. PASS THROUGH WINDOW AT 1 1175L TF. BRING PUMP TO 1.58 / 1.21 BPM @ I 1 1860 PSI FS. 1 TAG LIGHTLY AT 13181 FT AND DRILL, HOLD 165R TF INITIALLY. STALLS FROM 13182 FT TO 13186 FT. NINE STALLS GETTING STARTED. VERY SLOW DRILLING TO 13191 FT WITH MANY STALLS. Printed 3/30/2011 11:48:35AM ' O America rica - ALASKA BP Page B of 1s , , , , .,_ 0 Operation Summary Report Common Well Name: S -18 I AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad 1 Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA LUWI: 500292115600 Active Datum: 34 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT l NPT Depth Phase I Description of Operations (hr) L (ft) I ■ 16:00 - 17:20 1.33 DRILL P PROD1 ' DRILL FROM 13191 FT. VERY SLOW DRILLING. 1.77 / 1.52 BPM © 2000 -2100 PSI. DRILL TO 13192 FT. FOLLOWING STALL SHUT DOWN PUMPS AND P/U OFF BOTTOM.. 17:20 - 18:00 0.67 DRILL P PROD1 IAFTER SHUTTING DOWN PUMPS AND P/U . - OFF BOTTOM NORDIC DRILLER NOTICES 2 BBL PIT GAIN AND NOTIFIES WSL. - SMALL AMOUNT OF RETURNS SEEN COMING OVER SHAKER W/ PUMPS OFF AND COIL PARKED. P/U ABOVE WINDOW AND CIRC. AT MIN RATE TO WARM COIL. 17:30 - SHUT DOWN PUMPS AND FLOW CHECK - DIMINISHING RETURNS SEEN j COMING OVER SHAKER AFTER 2 MIN. I SHUT IN HCR AND NOTIFY CTD SUPT. AFTER SHUT -IN FOR 10 MIN. NO WHP IS SEEN. I OPEN HCR AND FLOW CHECK WELL - NO FLOW. ! BRING PUMPS ON AT MIN RATE AND TAKES —1 BBL TO GET RETURNS. HOLE IS TAKING ' `FLUID. FLOW ATTRIBUTED TO WELLBORE BREATHING. CONTINUE CIRCULATING IN CASED HOLE , WAITING ON ORDERS TO RESUME OPS. 18:00 - 18:30 0.50 i DRILL P PROD1 CREW CHANGE. DISCUSS CURRENT OPS. MAKE RIG ROUNDS AND CHECKS. CONTINUE CIRC. ABOVE WINDOW IN CASED , I HOLE MONITORING WELL AND AWAITING _ I ORDERS TO RESUME DRILLING. 18:30 - 18:45 0.25 DRILL P PROD1 I RECEIVE ORDERS TO RESUME OPS FROM CTD SUPT. WELL LOST TOTAL OF 9 BBLS WHILE CIRC. ABOVE WINDOW. SHUT DOWN PUMPS AND PERFORM 10 MIN. I FLOW CHECK PRIOR TO RESUME DRILLING - NO FLOW. 18:45 - 22:15 3.50 DRILL P PROD1 PASS THRU WINDOW CLEAN W/ PUMPS OFF. BRING PUMPS UP AND TAKES 1 BBL TO GET RETURNS. 1 I DRILL AHEAD FROM 13192 FT HOLDING 180L TFO. STALLS TWICE GETTING STARTED. 1970 PSI FS @ 1.74 BPM. :1.74 / 1.45 BPM IN/OUT @ 2250 PSI CIRC. 1.5K I - 3K# DHWOB. I BHP /ECD /PVT: 4431 PSWI / 9.61 PPG / 317 I BBLS. SLOW DRILLING TO 13206 FT W/ FREQUENT STALLS. Printed 3/30/2011 11:48:35AM Nortt America - ALASKA - Btu Pa 7 of 18 , . le . , Operation Summa Repay Common Well Name: S -18 AFE No Event Type: RE- ENTER- ONSHORE (RON) I Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay I Site: PB S Pad - Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12 :00:OOAM !, Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT � NPT Depth i Phase I Description of Operations hr (ft) 22:15 - 22:45 0.50 DRILL N STUC i PROD1 1P/U HEAVY OFF BOTTOM AND STACK WT ' I GOING BACK TO BOTTOM. i 'P/U TO ABOVE WINDOW STILL PULLING HEAVY. ;ANNULAR AND CIRC. PRESSURES HAVE INCREASED ALONG WITH LOSSES. WORK PIPE UP /DOWN IN SHORT INTERVALS. -1 BECOME STUCK AT -13180 FT IN CASED HOLE. UNABLE TO GO UP /DOWN BUT FREE ' l I TO ORIENT. PULL 2OK# OVER AND PULL FREE. APPEARED TO BE DIFFERENTIALLY STUCK ; DUE TO THE SLOTTED LINER. 22:45 - 23:00 0.25 DRILL N STUC 1 PROD1 I P/U TO 12,570 FT. AND LOG TIE -IN. ! , MAKE +2.0 FT CORRECTION. j 23:00 - 00:00 1.00 DRILL P i PR OD1 RBIH TO BOTTOM. I PASS THRU WINDOW CLEAN. STACKING WT. WORKING BACK TO BOTTOM. PULLING 5410K# HEAVY ON P /U'S. 1 TAG BOTTOM AT 13,208 FT AND DRILL 1 AHEAD. 1.52 / 1.10 BPM @ 2190 PSI. DRILL TO 13216 FT W/ LITTLE TO NO WOB AND MW. GAINING INC. EVEN THOUGH POINTED ' DOWN TRYING TO GAIN DEPARTURE. APPEARS WE ARE TRACKING PARENT y f BASED ON NBI AND DO NOT HAVE ENOUGH BEND TO GET AWAY. DECISION MADE TO POOH AND DIAL UP MOTOR. 2/11/2011 00:00 - 02:45 1il 2.75 DRILL N DPRB PROD1 START TRIP SHEET AND BEGIN POOH TO ! DIAL UP MOTOR. P/U TO ABOVE WINDOW AND OPEN EDC. 11.8 / 1.31 BPM IN/OUT POOH AT 70 FPM. 02:45 - 03:00 0.25 DRILL N ! DPRB PROD1 I PJSM FOR UD BHA. 03:00 - 03:45 0.75 DRILL N DPRB PROD1 UD BHA #3 AND DIAL UP MOTOR TO 2.0 DEG AKO. ' SHALE CHUNKS FOUND PACKED OFF ON ! BHA, ALONG W/ METAL SLIVERS AND ! ! DEBRIS. 03:45 - 04:15 0.50 I DRILL P PROD1 INSTALL NIGHT CAP, SECURE WELL AND PT CHOKE HCR TO 250 PSI LOW / 3500 PSI HIGH. CHART TEST - GOOD. — - - . 04:15 - 04:3:3 0 0.25 DRILL I N DPRB t I PRR OD1 � AAR FOR UD BHA AND M/U BHA# 4. 04:30 - 05:00 0.50 DRILL ' N ; DPRB PROD1 i PT CTC TO 250 PSI / 3500 PSI - GOOD. I M/U BHA# 5 W/ 2.0 DEG AKO AND RE -RUN HYC 3.188" X 3.375 BI CENTER BIT. 05:00 - 07:30 2.50 DRILL N 1 DPRB PROD1 RIH W/ BHA #4. 0.40 BPM AT 790 PSI. 07:30 - 09:10 1.67 DRILL N DPRB ' PROD1 I LOG GR DOWN FRO 12570 FT TO TIE IN DEPTH, CORRECT ' ,CO -31 FT. C RIH, LOG DOWN FROM 12980 FT TO TIE -IN RA I MARKER IN WHIPSTOCK. SLIGHT WT FLUCTUATIONS ( +/- 2K)AROUND _ - 13130 FT. � Printed 3/30/2011 11:48:35AM . _ . ,., , . . .. , , .. ,, , . . N�ztth Ameriea - ALASKA - BP Page8of 18, vipir . Op eration Summary - Report . Common Well Name: S -18 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 ©75.29ft (above Mean Sea Level) Date 1 From - To i Hrs Task Code NPT 1 NPT Depth ! Phase ; Description of Operations 1 (hr) L (ft) I 1 09:10 - 09:50 0.67 I DRILL N DPRB r ! PROD1 RESOLVE A 4 FT DEPTH DISCREPANCY BETWEEN THE UPHOLE (12500 FT) FORMATION MARKER AND THE ONE NEAR 1 1 THE WHIPSTOCK. TAG BOTTOM LIGHTLY AT 13210 FT, DRILL. ROP IS AROUND 20 -30 FT /HR INITIALLY, !OCCASIONAL SHARP STALLS. NEED TO 1 LIMIT DWOB < 1K TO AVOID STALLING. 09:50 - 10:30 1 0.67 DRILL P PROD1 1 DRILL FROM 13222 FT. HOLD 175L TF FOR j I NOW TO TRY AND GET SEPARATION FROM 1THE PARENT WELLBORE. ROP SLOWS ' AFTER .13222 FT. ADD 290 BBLS NEW MUD TO SYSTEM. 10 :30 - 10:55 0.42 DRILL I P 1 PROM AT 13223 FT DRILL. FOR ABOUT 10 MIN WITH ' STEADY 200 PSI MOTOR WORK AND 2.2K DWOB, NO MOVEMENT. DRILL TO 13225 FT AND PICK UP, UP WT IS 1 HEAVY 55K WITH -2K ON DWOB. 200 PSI I , [ MOTOR WORK OFF BOTTOM. GET NEW SLOW PUMP PRESSURES AFTER NEW MUD j IS ADDED TO SYSTEM. ' CONTINUE DRILLING TO 13229, ROP IS DOWN -- TO FT /HR. 'POOH FOR BIT. 10:55 - 11:20 ! 0.42 DRILL P 1 PROD1 DRILL TO 13228 FT AND SEE ANNULAR PRESSURE RISING, RISES ABOUT 200 PSI. PICK UP INTO CASING WITH INTENTIONS OF OPENING EDC TO CLEAN HOLE. � !PULL THROUGH WINDOW MAINTAIN 0.6 BPM ;AND CORRECT TF PULLING UP. PULL UP AND RECIP PIPE ABOVE THE WHIPSTOCK PUMPING THROUGH THE BIT. PICK UP TO 13100 FT AND TRY TO TURN AROUND, CAN'T GO DOWN. TRY AGAIN 20 FT HIGHER, CAN'T GO DOWN. CONTINUE PICKING UP HEAVY, 5 -10K OVER. ANNULAR PRESSURE ABOUT 400 -500 PSI HIGHER, OUT RATE FALLING OFF. I OVERPULL TO 59K AT 13100 FT. TRY TO RUN BACK IN AND CAN'T. TENSION AND COMPRESSION IS SEEN AT THE DWOB ' 1 WHEN PIPE IS CYCLED. GO TO NEUTRAL WT AND TRY TO REGAIN CIRCULATION. WORK PIPE AND GET FREE. PULL BACK TO 13020 FT AND OVERPULL AGAIN, WORK PIPE FREE. 1 PULL ABOVE 13000 FT AND REGAIN U CIRCULATION, PIPE IS MOVING FREELY. 11:20 - 12:30 1.17 DRILL 1 P PROD1 ! PICK UP ABOVE DEVIATED SECTION TO 10000 FT AND OPEN EDC, RIH TO CLEAN CASING. Printed 3/30/2011 11:48:35AM Not' A merica - ALASKA - BP P 9 of i 8. . ' 0 . , . Operation Summary RepOrt - Common Well Name: S -18 I AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) ( ) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (ft) 12:30 - 14:30 2.00 DRILL P PROD1 1 PUMP 3.5 / 3.36 BPM FROM 10000 FT TO !WHIPSTOCK TRAY. FAIR AMOUNT OF CUTTINGS COMING BACK, 1 WITH A LITTLE BIT OF METAL. 1 PUMP A 20 BBL HI-VIS SWEEP AROUND. AT 13110 OUT RATE DROPS OFF TO 2.8 BPM, ANNULAR PRESSURE RISES. PICK BACK UP, PULLING 5K OVER FOR A WHILE THEN DROPS OFF. ' 'TAKE SMALL INCREMENTS OF FILL AT A TIME AND CIRC THEM OUT, TO AVOID 1 LOSING RETURNS. RIH THROUGH WINDOW TO CLEAN WHIPSTOCK TRAY-WITH OPEN EDC, CAN ONLY GET TO 13195 FT START STACKING _ I WT. 1 14:30 - 18:00 3.50 DRILL P PROD1 I POOH FOR BIT, PUMP 3.47 / 3.12 BPM. 18:00 - 18:30 0.50 DRILL P I PROD1 CREW CHANGE. PJSM FOR LID BHA. 18:30 - 19:15 0.75 DRILL P ' PROD1 STOP AT 200 FT. AND FLOW CHECK WELL - ' NO FLOW. - UNSTAB COIL AND SET INJ. OVER I BUNGHOLE. I L/D BHA #4. `BIT HAD ONE PLUGGED NOZZLE AND MINIMAL WEAR. FILL HOLE ACROSS THE TOP. 19:15 - 20:00 0.75 DRILL P PROD1 1 PJSM FOR M/U BHA #5. M/U BHA #5 CONSISTING OF 2.0 DEG AKO AND HCC 3.125" X 3.625" BIT. 20:00 - 22:30 2.50 DRILL P ! PROD1 I RIH W/ BHA #5. 1 0.54 BPM @ 1121 PSI. 22:30 - 22:45 0.25 DRILL P PROD1 LOG GR TIE -IN FROM 13,170 FT. _ 'MAKE 27 FT CORRECTION. DRILL P 0.58 PROD1 ' 22:45 - 23:20 CONTINUE RIH TO BOTTOM. STACK 3K# AT 13215 FT. II WORK PAST AND CONTINUE RIH TO BOTTOM. TAG BOTTOM AT 13229 FT. _ LOST TOTAL OF 23 BBLS DURING TIH. 23:20 - 00:00 0.67 DRILL P PROD1 DRILL AHEAD FROM 13229 FT. HOLDING 175L TFO INITIALLY. 2090 PSI FS @ 1.60 BPM. BHP /ECD /PVT: 4555 PSI / 9.87 PPG / 297 BBLS. 1.60 / 1.37 BPM IN/OUT. 200 -250 PSI MW. 1 -2K# DHWOB. DRILL TO 13232 FT. 2/12/2011 00:00 - 02:00 2.00 DRILL P I PROD1 I DRILL AHEAD IN BUILD SECTION FROM 13232 FT. SLOW ROP AT 5 FPH W/ FREQUENT STALLING. , I 1.70 / 1.50 BPM IN/OUT. 11.5 -2.5K DHWOB. 150 -250 PSI MW. 02:00 - 05:00 3.00 DRILL ' P I PROD1 DRILL AHEAD FROM 13243 FT. ROP REMAINS SLOW AT 5-10 FPH. 1.70 / 1.51 BPM IN/OUT. 1.5 -2.5K# DHWOB. CONTINUING TO DROP INC AND STARTING TURN. I 1 1 , ROP PICKS UP TO 20 -25 FPH PAST 13240 FT. BHP /ECD /PVT: 4564 PSI / 9.90 PPG / 265 BBLS. DRILL TO 13280 FT. Printed 3/30/2011 11:48:35AM - North Ameflca - ALASKA - BP • ••• , . . '''.- : - s-- ' --; Page. 10 of to Operation Summary Report - Common Well Name: S -18 ; AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 I End Date: 1X3- 00V57 -C (2,205,316.00 USD) I I Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date I From - To I Hrs Task Code NPT I NPT Depth Phase I Description of Operations (hr) (ft) 1 05:00 - 08:00 3.00 DRILL P PROD1 I PUH ABOVE THE WINDOW INTO CASED HOLE. PULLING 2 -3K# HEAVY IN THE OPEN HOLE UP ' I PAST WINDOW TO 13,140 FT THEN DROPS ■ I OFF. 1 P/U TO 13100 FT AND OPEN UP EDC. BRING PUMPS UP TO 3.63 BPM AND CIRC. BU TO CLEAN HOLE. 08:00 - 09:00 1.00 DRILL P PROD1 CONTINUE DRILLING PAST 13300 FT. HOLD 80L TF FOR NOW TO CONTINUE LEFT TURN AND MAINTAIN 78 -80 DEG INC. ROP IS 10 -20 FT /HR WITH 1.9K DWOB. 1.67 / 1.52 BPM © 2300 -2650 PSI. DRILL TO 13315 FT. ANNULAR PRESSURE RISES ABOUT 201: IN 30 MIN. 09:00 - 09:40 0.67 DRILL i P I PROD1. PULL BACK THROUGH WINDOW TO OPEN EDC. MAINTAIN 0.6 BPM AND 180L TF PULLING UP THROUGH WINDOW. GO BACK TO 1.8 BPM THROUGH THE BIT AND RECIP CT ABOVE THE WHIPSTOCK, THEN f STOP AND OPEN EDC. PUMP 3.5 BPM, AT 13086 FT START PACKING OFF AND CANT MOVE DOWN. RIH AND C REDUCE RATE TO 2.6 BPM, REGAIN CIRCULATION. KEEP RATE AT 2.6 BPM AND CONTINUE P /U. PACKING OFF AGAIN AT 13086 FT, THEN LETS LOOSE. C I START TO INCREASE LSRV OF MUD SYSTEM I - --- -. - - -- I FROM 60K TO 70K. 09:40 - 10:15 ' 0.58 I DRILL P PROD1 I INCREASE PUMP TO 3.1 BPM, RIH PAST TROUBLE SPOT AGAIN, NOTHING SEEN. FINAL PASS THROUGH IS AT 3.5 BPM, NOTHING SEEN. GOOD AMOUNT OF CUTTINGS BACK ON THE B /U. _ ,10:15 - 12:15 1 2.00 DRILL P PROD1 I STOP AT 13155 FT AND CLOSE EDC. PASS THROUGH WINDOW AND TAG BOTTOM I ' AT 13315 FT. I I I I DRILL AT 1.73 / 1.56 BPM © 2350 -2600 PSI. ROP IS AROUND 15 FT /HR WITH 2K DWOB. 12:15 - 14:20 2.08 DRILL P PROD1 ! PUMP 15 BBLS LO-VIS FOLLOWED BY 15 BBLS HI -VIS. CONTINUE DRILLING PAST 13340 FT. WHEN THE LOW AND HI-VIS SWEEP STARTS UP THE HOLE THE ANNULAR PRESSURE DECREASES BY ABOUT 40 PSI. i CONTINUE DRILLING TO 13365 FT. LO-VIS AND HI-VIS SWEEP BOTH BRING I BACK A GOOD AMOUNT OF CUTTINGS. Printed 3/30/2011 11:48:35AM North Anlerica. ALASKA - BP Page,11 of - Operation Summary Report s - . -- - . . ' Common Well Name: S -18 1 AFE No Event Type: RE- ENTER- ONSHORE (RON) 1 Start Date: 2/6/2011 1 End Date: 1X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 ; Spud Date/Time: 7/27/1985 12:00:OOAM !Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA ! UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To 1 Hrs 1 Task ' Code NPT 1 NPT Depth 1 Phase Description of Operations ' (hr) 1 (ft) l 14:20 - 15:30 1.17 I DRILL 1 P r ' PROD1 � WIPER TRIP FROM 13365 FT. PULL THROUGH WINDOW WITH 0.5 BPM !PUMP RATE, THEN GO TO FULL RATE ;THROUGH THE BIT. ' RECIP PIPE ABOVE THE WHIPSTOCK THEN OPEN EDC. PUMP 2.5 / 2.21 BPM BACK TO 12900 FT, .1 THEN PUMP 3.5 / 3.20 BPM BACK DOWN TO 1 WINDOW. STOP AND CLOSE EDC. ' NO HOLE PROBLEMS OR UNUSUAL PRESSURES SEEN DURING THIS WIPER. CLOSE EDC AND RIH TO BOTTOM. 15:30 - 19:00 3.50 DRILL P j PROD1 DRILFR +M 13365 FT. HOLD 70L TF TO CONTINUE LEFT HAND TURN. ROP IS STILL SLOW, 1 " -15 FT /HR. PUMP 15 BBL LO-VIS PILL FOLLOWED BY 15 BBL HI-VIS PILL. 1 _ I __ _- 1 DRILL TO 13400 FT. 19:00 - 20:30 1.50 DRILL P i , PROD1 i DRILL AHEAD FROM 13400FT. CONTINUE I HOLDING 75L TFO AT 80 DEG INC. SLIGHT INCREASE IN AMOUNT OF CUTTINGS 1 1 SEEN COMING BACK OVER SHAKER W/ 1 ! PILLS. 1,73 / 1.60 BPM IN/OUT @ 2400 -2600 PSI CIRC. 2.0 -3.0K# DHWOB. ROP 10 -15 FPH. II 1 - DRILL TO 13,430 FT. 20:30 - 00:00 3.50 DRILL P PROD1 BEGIN POOH TO DIAL DOWN MOTOR. PVT = 297 BBLS. . SEE SLIGHT OVERPULL AT 13225 FT. . REDUCE RATE TO 0.6 BPM AND PASS THRU WINDOW CLEAN AT AS DRILLED TF. BRING PUMPS BACKUP TO 1.8 BPM AND PUH PAST TROUBLE SPOT AT 13086 FT CLEAN. ' AT 13000 FT. STOP AND OPEN EDC. BRING PUMPS UP TO MAX RATE AND POOH AT 3.78 BPM AND 90 FPM. GOOD AMOUNT OF CUTTINGS COMING BACK. 2/13/2011 1 00:00 - 00:15 0.25 DRILL P PROD1 1PJSM FOR UD BHA #5. OVERHEAD LOADS 1 ! AND WELL CONTROL DISCUSSED. 00:15 - 00:45 0.50 DRILL P PROD1 STOP AT 100 FT. AND POP OFF INJ. UD BHA #5. FIND AN -5 -6 FT. PIECE OF E -LINE ARMOR IN 1 BHA BELOW THE UQC. 1 BIT GRADED 2 -4. MULTIPLE CHIPPED /BROKEN CUTTERS ON WING BLADES AND ONE CHIPPED CUTTER ON THE NOSE. 00:45 01:45 1.00 DRILL P PROD1 I DIAL DOWN MOTOR TO 1.2 DEG AND C/O BIT. . ' PJSM FOR M/U BHA #5. M/U BHA #6 CONSISTING OF 1.2 DEG AKO AND NEW RE -BUILT 3.125" X 3.625" HCC BIT. 01:45 - 04:15 t 2.50 DRILL P 1 PROD1 ! RIH W/ BHA #5. _ 10.46 / 0.92 BPM IN/OUT @ 1420 PSI. 04:15 - 04:30 0.25 1 DRILL P ! PROD1 LOG GR TIE -IN FROM 13170 FT. ' i J l MAKE -28 FT CORRECTION. Printed 3/30/2011 11:48:35AM North America. - ALASKA BP Page 120€18 Operation Summary Report . Common Well Name: S -18 `AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 I i End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay I Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM i Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA ; UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date I From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) ' 04:30 - 04:45 0.25 DRILL P PROD1 ' CONTINUE RIH. SHUT DOWN PUMPS AND RIH PAST WINDOW ■ CLEAN. ! BRING PUMPS UP AND CIRC PRESSURE INCREASES TO -1000 PSI ABOVE NORMAL. IANNULARAND BORE PRESSURES REMAIN j NORMAL. i PUH ABOVE WINDOW AND TROUBLESHOOT. 04:45 - 06:30 1.75 DRILL P PROD1 ! OPEN EDC AND TROUBLESHOOT. 06:30 - 07:15 0.75 DRILL N DFAL 13,430.00 j PROD1 1 PUMP WITH OPEN EDC AT 12900 FT, PRESSURES ABOUT 800 -1000 PSI HIGHER !THAN YESTERDAY. 'PUMP WITH NEW MUD FROM THE TRUCK, 53K LSRV. SAME RESULT. 07:15 - 09:00 1.75 DRILL N DFAL 13,430.00 PROD1 !POOH TO TROUBLESHOOT TOOLS AT SURFACE. SWITCH TO THE OTHER HP FILTER ON THE L WAY OUT, NO CHANGE IN PUMP PRESSURE. 09:00 09:15 0.25 PROD1 P PJSM l T DFAL 13,430 00 JS FOR UD BHA. i, DRILL N i i _ 09:15 - 10:25 1.17 DRILL N DFAL 1 13,430.00 PROD1 [ POP OFF WELL, UD BHA. REMOVE UQC. FIND THE FLAPPER ON THE CHECK VALVE HAS BROKEN OFF AND LANDED ON THE FLOW SUB. 'THIS IS THE LIKELY CAUSE OF THE HIGH PUMP PRESSURES. i !ALSO FIND ANOTHER 5 FT STRAND OF J CABLE ARMOR IN THE UQC. 10:25 - 10:45 0.33 DRILL N DFAL 13,430.00 ! PROD1 I CUT OFF CT CONNECTOR. CIRC CT TO !WARM IT UP. FILL WELL EVERY 30 MIN, TAKING ABOUT 1 BBL. ! 10:45 - 11:00 0.25 DRILL N DFAL i 13,430.00 PROD1 ; PJSM FOR PUMPING CABLE OUT. ✓ ;11:00 - 13:00 2.00 DRILL , N DFAL 13,430.00 PROD1 ' PUMP OUT AND TRIM 175 FT OF CABLE. INSPECT CABLE CLOSELY, NO MISSING ' ' PIECES OF ARMOR FOUND. ! STRAND COUNT IS CORRECT ON BOTH ENDS I 1 OF THE TRIMMED CABLE, 18 OUTER AND 12 INNER. i 13:00 - 15:20 2.33 ■ DRILL i N DFAL 13,430.00 PROD1 !FUNCTION TEST BOPS. i j I LINE UP MEOH, CORROSION INHIBITOR, DIRTY VAC, REEL TRAILER AND N2 FOR REEL I SWAP. ' i CONTINUE FILLING WELL EVERY 30 MIN, TAKING ABOUT 2 BBLS / HR. 15:20 - 19:00 3.67 DRILL ! N DFAL 13,430.00 PROD1 INSTALL CTC AND PULL TEST TO 36K, GOOD. STAB ON WELL. PJSM W/ N2 CREW FOR BLOWING DOWN COIL. ' FLUSH COIL W/ FRESH WATER. I BLOW DOWN COIL W/ N2 TAKING RETURNS L TO THE TIGER TANK. 19:00 - 22:00 3.00 j DRILL N DFAL 13,430.00 PROD1 �UNSTAB COIL AND CUT OFF CTC. j M/U CT GRAPPLE AND PULL TEST. I PULL COIL ACROSS AND SECURE ON REEL. PREP REEL TO BE OFF - LOADED. 22:00 - 22:15 0.25 DRILL N DFAL 13,430.00 PROD1 PJSM FOR OFF - LOADING REEL AND P/U NEW — i — REEL.. 22:15 - 23:00 ! 0.75 DRILL N DFAL 13,430.00 PROD1 SPOT TRAILER AND OPEN UP BOMBAY — !DOORS. LOWER REEL ONTO TRAILER AND SECURE. Printed 3/30/2011 11:48:35AM North Arnenca - ALASKA BP: 0- l3 of 18 , Operation Summary Report • Common Well Name: S -18 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date 1 From - To Hrs Task ;Code 1 NPT 1 NPT Depth Phase Description of Operations (hr) (ft) 23:00 - 00:00 1.00 ' DRILL N DFAL i 13,430.00 PROD1 P/U NEW REEL AND PLUMB IN HARD LINES. 2/14/2011 100:00 - 05:00 5.00 DRILL N DFAL : 13,430.00 PROD1 ; CONTINUE PLUMBING IN REEL HARD LINE. FINSIH C/O STRIPPER BRASS. 1 02:00 FILL HOLE - TAKES 5 BBLS. 104:00 FILL HOLE - TAKES 4 BBLS. 05:00 - 07:30 2.50 DRILL N DFAL 13,430.00 PROD1 1 PULL COIL ACROSS AND STAB. 1 07:30 - 08:30 1.00 DRILL N DFAL 13,430.00 PROD1 ' fFILL COIL PUMPING 5 BBLS MEOH -1- I FOLLOWED BY HOT M UD 08:30 - 21:15 12.75 DRILL N WAIT PROD1 . PHASE 3 CALLED BY SECURITY @ 08:30 - WAIT ON WEATHER - MONITORING HOLE FILL. 121:15 - 22:00 0.75 DRILL 1 N WAIT PROD1 PHASE 2 LEVEL III CALLED BY SECURITY @ 21:15. CONTINUE WAITING ON WEATHER. CONFIRM W/ DSO OK TO RESUME OPS. 22:00 - 22:30 0.50 DRILL N DFAL ` 13,430.00 PROD1 PJSM FOR RETURNING TO WORK AND ! PERFORMING SLACK MANAGEMENT. ! 22:30 - 00:00 1.50 DRILL N DFAL 13,430.00 ! PROD1 P/U INJ. AND STAB ON WELL. LINE -UP TO PUMP SLACK BACK. . WAIT ON FURTHER ORDERS FROM IMT DUE TO LEVEL III ROAD CONDITIONS. 1OK GIVEN FROM IMT AND DSO TO FULLY - RESUME OPS. 2/15/2011 ' 00:00 - 00:30 0.50 DRILL N DFAL PROD1 1PT INNER REEL VALVE AND CT PACK -OFF. I 250 PSI LOW / 3500 PSI HIGH - PASSED. 100:30 - 01:00 0.50 DRILL N DFAL PROD1 I UNSTAB INJ. AND INSTALL NIGHT CAP. 1 R/U CT CUTTER. CUT 10 FT. OF COIL AND _ FIND WIRE. 01:00 - 01:30 • 0.50 DRILL N DFAL PROD1 I M/U BTT INTERNAL CTC AND PULL TEST TO _ - , 40K# - GOOD. '1 - 02:30 ; 1.00 DRILL N j DFAL PROD1 'TEST E -LINE AND RE -HEAD BHI. 02:30 - 04:00 1.50 DRILL N SFAL PROD1 : R/U TEST PUMP HOSE TO PT CHECK ' VALVES. TROUBLESHOOT PROBLEM W/ TEST PUMP IAND FIX. 04:00 - 04:20 0.33 DRILL N DFAL PROD1 I PT CHECK VALVES TO 250 PSI LOW / 3500 _ PSI HIGH - PASSED. 04:20 - 04:30 1 0.17 DRILL N DFAL PROD1 CIRC. THRU COIL TO WARM IT UP. - - - - -------1 ±_ GREASE REEL MANIFOLD. 0 04:30 - 04:45 I 0.25 DRILL II N DFAL PROD1 PJSM FOR M/U BHA #7. y 04:45 - 05:30 015 DRILL ' N r DFAL PROD1 FILL HOLE. M/U BHA #7 CONSISTING OF 1.2 DEG AKO I AND HCC 3.125" X 3.625" BI-CENTER BIT. 05:30 - 08:25 2.92 DRILL N , DFAL 1 PROD1 1 RIH W/ BHA #7 AT 100 FPM. 0.58 / 1.07 BPM IN/OUT @ 1075 PSI. 08:25 - 09:15 0.83 DRILL 1 P r PROD1 LOG GR TIE -IN FROM 13165 FT AND MAKE -31 l FT. CORRECTION. TAG BTM @ 13431 AND BEGIN DRILLING. AP ~- 4650# - 1.6K DWOB - ROP 50 FT /HR 109:15 - 10:05 0.83 DRILL P PROD1 PUMP 15 BBL LOW VIS/ 15BBL HIGH VIS ;SWEEP. AP DROPPED TO 4625 WHEN 15 ■ BBLS OUT OF COIL :10:05 - 10:30 0.42 DRILL P I PROD1 'I TD 13500' - WIPER TRIP TO WINDOW 10:30 - 11:05 0.58 DRILL P 1 PROD1 1 OPEN EDC AND INCREASE RATE TO 3.5BPM ll 1 11:05 - 12:45 1 1.67 DRILL ' P P ROD1 1 BACK ON BOTTOM DRILLING WITH 4665# AP 12:45 - 13:00 j 0.25 DRILL P PROD1 1 PUMP 10 BBL LOW -VIS FOLLOWED BY 10 BBL !HIGH VIS SWEEP Printed 3/30/2011 11:48:35AM Nartt America - ALASKA - BP Page14_orla • Operation Summary ' Common Well Name: S -18 AFE No Event Type: RE- ENTER- ONSHORE (RON) I Start Date: 2/6/2011 j End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay I Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM 1 Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA 1 UWI: 500292115600 Active Datum: 34 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date I From - To Hrs Task ' Code I NPT 7 NPT Depth Phase 1 Description of Operations - (hr) i 1 __ (ft) ; 13:00 - 15:00 2.00 DRILL 1 P I PROD1 LONG WIPER FROM 13575 FT UP TO 11000 _ FT. ;15:00 - 15:30 ! 0.50 DRILL 1 P PROD1 I LOG GR TIE -IN FROM 13140 FT. MAKE +3 FT. ! CORRECTION. 15:30 - 16:30 1.00 DRILL P 1 ! PROD1 RIH AND DRILL AHEAD FROM 13575 FT. 2540 PSI FS @ 1.88 BPM. ■ I I DRILL TO 13675 FT. PUMP 10 BBL LO-VIS 1 ' FOLLOWED BY 10 BBL HI-VIS SWEEP. 16:30 - 17:30 1.00 DRILL P PROD1 I !WIPER TO WINDOW. PERFORM JOG ABOVE ! WINDOW AND UP TO 12900 FT. 17:30 - 18:30 1.00 DRILL P I j PROD1 DRILL AHEAD FROM 13675 FT. ADD 80 BBLS OF MUD TO PITS 2,3, & 5. I VERIFY START AND END VOLUMES. 18:30 - 19:00 0.50 DRILL P - PROD1 ICREW C/O. DISCUSS CURRENT OPS AND MAKE RIG ROUNDS AND CHECKS. CONTINUE TO DRILL AHEAD FROM 13770 FT. 1.90 / 1.83 BPM IN/OUT @ 2950 PSI. ' BHP /ECD /PVT: 4716 PSI / 10.17 PPG / 370 1 ! BBLS. PUMP LO- VIS/HI -VIS SWEEP AND TIME TO BE OUT. OF THE BIT RIGHT BEFORE WIPER. DRILL TO 13800 FT. i- r 19:00 - 21:00 2.00 DRILL 1 P PROD1 LLONG WIPER TRIP TO 11000 FT. HOLE IS IN I GOOD CONDITION. PASS CLEAN THRU WINDOW. OPEN EDC j AND PUMP AT 3.5 BPM UP TO 11000 FT. SEE CONSISTENT AMOUNT OF CUTTINGS 1 1 COMING OVER SHAKER W/ SWEEP AND AT HIGHER RATE. 21:00 - 21:15 0.25 DRILL i P PROD1 11 LOG GR TIE -IN FROM 13140 FT AND MAKE +5 FT CORRECTION. 21:15 - 21:30 0.25 DRILL P 1 PROD1 I CONTINUE RIH AND TAG BOTTOM AT 13,802 I L 1 FT. 21:30 23:45 2.25 DRILL P 1 PROD1 DRILL AHEAD FROM 13802 FT. 12615 PSI FS @ 1.88 BPM. 1 1.88 / 1.84 BPM IN/OUT. 250 -300 PSI MW. 1 2 -3K# DHWOB. ROP 75 -100 FPH. BHP /ECD /PVT: 4670 PSI / 10.17 PPG / 353 BBLS. PERFORM SHORT WIPERS THE LENGTH OF THE BHA AS NEEDED. I PUMP 15 BBL LO-VIS / 10 BBL HI-VIS SWEEP. I DRILL TO 13950 FT. 1 23:45 - 00:00 I 0.25 DRILL P PROD1 ,WIPER TO WINDOW FROM 13950 FT. 2/16/2011 100:00 - 00:45 0.75 DRILL P PROD1 , CONTINUE WIPER TO WINDOW FROM 13950 FT. I '_ CLEAN BOTH WAYS. 00:45 - 02:15 1.50 DRILL P PROD1 DRILL AHEAD FROM 13950 FT. 2615 PSI FS @ 1.88 / 1.85 BPM IN/OUT. ! 2.5 -3.0K# DHWOB. 300 -400 PSI MW. I BHP /ECD /PVT: 4696 PSI / 10.12 PPG / 366 BBLS. PUMP 15 BBL LO-VIS / 15 BBL HI-VIS SWEEP. _ - - - -- . - - -- DRILL TO 14100 FT. 02:15 - 03:45 1.50 1 DRILL P PROD1 LONG WIPER TRIP TO 11000 FT. i ' PASS THRU WINDOW CLEAN AND OPEN EDC. ' PUMP AT 3.5 BPM. 03:45 04:00 - 0.25 DRILL 1 P PROD1 I CLOSE EDC AND LOG GR TIE -IN FROM 13140 I FT. 1 1 I MAKE +4 FT. CORRECTION. Printed / / 11 3 30 20 11:48:35AM 0 North Am erica.- ALASKA - BP 1S'.ot la' Operation Summary Report . Common Well Name: S -18 ; AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: iX3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28 /2011 Rig Contractor: NORDIC CALISTA IUWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 ©75.29ft (above Mean Sea Level) Date I From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 1 04:00 - 04:30 0.50 DRILL T P PROD1 RIH PAST WINDOW CLEAN W/ PUMPS OFF. CONTINUE RIH TO BOTTOM. 1 04:30 - 07:00 2.50 DRILL P PROD1 DRILL AHEAD FROM FROM 14100 FT. 1.89 / 1.84 BPM IN/OUT @ 3130 PSI. ; ROP 60 -90 FPH. 2 -3K# DHWOB. I BHP /ECD /PVT: 4720 PSI / 10.18 PPG / 328 ;BBLS. 07:00 - 09:25 2.42 DRILL , P PROD1 ; PUMP LOW AND HIGH VIS SWEEPS AND MAKE WIPER TRIP TO 12900 - CUTTINGS i CONSTANT _ 09:25 - 11:00 1.58 DRILL ; P PROD1 i BACK ON BTM DRILLING @ 14250' 11:00 - 13:30 2.50 DRILL ; P 1 PROD1 ; PUMP LOW AND HIGH VIS SWEEPS AND MAKE WIPER TRIP FROM 14400' - IN 3.38, OUT 1_ X3.12 @3380 PSI ABOVE WINDOW 113:30 - 13:35 0.08 DRILL P I PROD1 ITIE IN FROM 13140'- CORR + 8 - CONTINUE TO BTM - 6 r I IH 13:35 14:15 , 0..67 DRILL P PROD1 CONTINUE Tlti I 14:15 - 16:00 i 1.75 DRILL P PROD1 BACK ON BTM DRLG - IN 1.92 , OUT 1.86 16:00 - 16:30T 0.50 DRILL P T PROD1 RATTY DRILLING @14510 - GEO SAYS / POSSIBLE SHALE STRINGER - ADJUST INC - . TO 92 -94 TO STAY BELOW SHUBLIK 16:30 - 17:00 ; 0.50 DRILL - P PROD1 DRLG AHEAD @14545 & PMP 1 OBBL LOW AND 1 HIGH VIS SWEEPS - IN 1.95, 1.9 OUT PUMP 20 BBLS LO- VIS/HI -VIS SWEEP. 17:00 - 18:30 ; 1.50 DRILL - I P PROD1 WIPER TO WINDOW. HOLE SMOOTH BOTH -i -- - 1WAYS. 18:30 - 22:00 3.50 DRILL P PROD1 ;DRILL AHEAD FROM 14550 FT. BEGIN TO LEVEL OUT AT TOP OF INVERT SECTION. ;1.88 / 1.84 BPM IN/OUT @ 2660 PSI FS. 12-3K DHWOB. RATTY DRILLING FROM 14580 FT TO 14630 FT W/ VARIABLE ROP. j BHP /ECD /PVT: 4759 PSI / 10.27 PPG / 305 i BBLS. 22:00 - 00:00 2.00 DRILL P PROD1 DRILL AHEAD FROM 14630 FT STILL HOLDING LEVEL. GAMMA STARTING TO CLEAN BACK ! UP. 1.88 / 1.84 BPM IN/OUT. PUMP 10 BBL LO -VIS / 10 BBL HI-VIS PILL. - - ' L DRILL TO 14685 FT. 2/17/2011 00:00 - 00:30 0.50 DRILL P j PROD1 DRILL TO 14690 FT AND ROP STARTS TO DROP OFF. ; BEGIN WIPER TO 11000 FT. _ 00:30 03:00 2.50 DRILL P PROD1 LONG WIPER BACK TO 11000 FT. SLOW DOWN PUMPS AND PULL THRU WINDOW. SEE SLIGHT WT. BOBBLE AT 13160 FT. I P/U ABOVE WINDOW AND OPEN EDC. ;BRING PUMPS UP TO 3.5 BPM. 03:00 03:15 � 0.25 ' DRILL -- - - - -- - -- � -- - - - -- - -- - - - - -- - - -- PROD1 I CLOSE EDC AND LOG GR TIE -IN FROM 13140 I FT. 1 , MAKE +8 FT CORRECTION. - ' T 03:15 04:15 1.00 DRILL ; - - - - -' -- - -- -- P I PROD1 CONTINUE RIH THRU WINDOW AND BACK TO BOTTOM SMOOTH. I 04:15 - 06:50 2.58 DRILL P 1 PROD1 1 DRILL AHEAD FROM 14690 FT AND CONTINUE 1 HOLDING LEVEL AT 90R. 1.89 / 1.84 BPM IN/OUT @ 2700 PSI FS. 2 -3K# DHWOB. 250 -300 PSI MW. ROP IS 50 -70 FPH. I BHP /ECD /PVT: 4775 PSI / 10.2 PPG / 271 BBLS. Printed 3/30/2011 11 : 48: 35AM - North America - ALASKA - B Pages 160 Operation Summary R eport Common Well Name: S -18 '; AFE No Event Type: RE- ENTER- ONSHORE (RON) I Start Date: 2/6 /2011 I End Date: 'X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date I From - To Hrs Task Code NPT NPT Depth 1 Phase 1 Description of Operations (hr) (ft) 06:50 - 07:15 0.42 DRILL P , PROD1 'PUMP LO /HI VIS SWEEPS 07:15 - 09:15 2.00 DRILL P PROD1 I WIPER TO WINDOW FROM 14850' I 09:15 - 09:40 0.42 DRILL P I PROD1. BACK ON BTM DRLG @ 1.9, BPM, 2720 FS, I 110.41 ECD, 222 PVT, 89 IA 271 0A 09:40 - 11:20 1.67 DRILL P I PROD1 [ADD 115 BBLS NEW MUD TO THE PITS - 331 ' PVT 11:20 - 12:35 1.25 DRILL P 1 PROD1 PUMP LO /HI VIS SWEEPS 12:35 - 16:00 3.42 DRILL P PROD1 'WIPER TO WINDOW FROM 15000 - 342 PVT - HOLE WAS CLEAN BUT HAD SLIGHT TAG AT BOW © 13178 ON WAY BACK DOWN - IA 90# 1 , OA 275# ;16:00 - 18:00 1 2.00 DRILL P PROD1 BACK ON BOTTOM DRILLING - 1.85 IN 1.85 OUT @ 2710# - ROP ERRATIC SINCE 14982' 0 - [ 50 FPH. 18:00 - 21:15 3.25 DRILL P PROD1 CREW CHANGE -OUT. MAKE RIG ROUNDS AND CHECKS. [ DRILL AHEAD FROM 15030 FT. 1 I 1.90 / 1.89 BPM IN/OUT @ 2950 PSI CIRC. ROP BECOMES MORE CONSISTENT AT 60 -90 11 �� 1 / EPH. / ';BHP /ECD /PVT: 4835 PSI / 10.2 PPG / 308 BBLS. vvv _I _____ _ PUMP LO- VIS / HI-VIS SWEEP AROUND. 1 21:15 - 00:00 2.75 DRILL I P PROD1 'WIPER TRIP TO WINDOW FROM 15150 FT. 1 SLIGHT OVERPULL AND MW SEEN AT 14670 FT ON WAY UP. SMOOTH BACK DOWN TO BOTTOM. 2/18/2011 ! 00:00 - 00:50 0.83 DRILL P PROD1 1DRILL AHEAD FROM 15150 FT FOLLOWING WIPER TO WINDOW. 1.9 BPM IN/OUT @ 2780 PSI FS. 150 -250 PSI MW. 1.5 -2.5K DHWOB. 90 -100 FPH. BHP /ECD /PVT: 4873 PSI / 10.48 PPG / 303 BBLS. \ ADD 60 BBLS OF MUD TO PITS 4 & 5 FOR LINER RUNNING AND PERF PILLS. PITS 2 & 3 . ACTIVE. f)RII L TO 15181 FT. _ 00:50 02:30 1.67 DRILL N rt DFAL PROD1 LOST ALL COMMS W/ MWD TOOLS. P/U SLOWLY OFF - BOTTOM WHILE TROUBLESHOOTING. SIGNAL CHECKS OUT GOOD FROM MWD 1 I SHACK TO BHI JUNCTION BOX AND FROM THE BHI JUNCTION BOX TO THE COLLECTOR. CONTINUE TO PUH PUMPING AT 1.9 BPM @ 2320 PSI INTO CASED HOLE TO FURTHER TROUBLESHOOT. NO OVERPULLS OR MW SEEN PULLING UP I THRU OPEN HOLE. 02:30 - 02:45 0.25 DRILL N DFAL 1 PROD1 I SLOW PUMPS COMING THRU WINDOW. , 1PULL THRU WINDOW CLEAN. P/U 100 FT ABOVE WINDOW AND PARK COIL. TEST THE E -LINE FROM THE JUNCTION BOX IN THE REEL STAND TO THE COLLECTOR - 1 GOOD. FAILURE IS NOT AT SURFACE. Printed 3/30/2011 11:48:35AM - ' - - ' ' . North Antehca = ALASKA - BP , - Paget? of s = Operation Summary Report Common Name: AF N Co o e Na e S 18 E No i i - - (2,205,316.00 USD) Type: RE- ENTER- ONSHORE D : 2/6/2011 End Date: X3 OOV57 C (2,205,3 ) yp (RON) (0) ;Start ate d ate: i Project: Prudhoe Bay i Site: PB S Pad Rig Name /No.: NORDIC 2 1 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task 1 Code NPT NPT Depth I Phase Description of Operations (hr) (ft) 02:45 - 06:00 3.25 � RILL N DFAL PROD1 POOH W/ DRILLING BHA PUMPING AT MAX 1 RATE THRU BIT DUE TO BEING UNABLE TO OPEN EDC. 50 FPM UP TO 11000 FT (END OF 45 DEG TANGENT) AT 1.90 BPM AND 2730 PSI. 04:00 -04:45 HELD TABLE TOP KWD DRILL W/ I j FALL CREW MEMBERS. DISCUSSED 1 WARNING SIGNS, RESPONSIBILITIES, AND ;STANDING ORDERS. 06:00 - 06:45 0.75 DRILL N DFAL , 1 PROD1 AT SURFACE CREW CHANGE -OUT. DISCUSS CURRENT OPS AND MAKE RIG ROUNDS AND CHECKS. PJSM FOR L/D BHA 06:45 - 07:30 ! 0.75 DRILL N DFAL PROD1 ' PARK COIL AT 150 FT. AND FLOW CHECK i WELL - NO FLOW. POP OFF NJ, AND L /D BHA. 1 07:30 - 08:45 1.25 DRILL N DFAL PROD1 INSPECT BHA FOR CAUSE OF COMMS FAILURE. WIRELINE AND FLOW SUB ARE GOOD. ; i THE DGS WAS FOUND TO BE THE PROBLEM. CHECK VALVES WERE FOUND TO BE ; WASHED OUT - LIKELY DUE TO THE � tINCREASED FLOW RATES THRU THE EDC. 1 — 1 BIT GRADED 3 -4. 08:45 - 10:00 1.25 DRILL ' N DFAL PROD1 1 PJSM FOR M/U C/O BHA. 1 M/U BHA #8 CONSISTING OF NEW CHECK VALVES AND RE -RUN SAME BIT. LEAVE OFF RES TOOL. 10:00 - 11:00 1.00 DRILL N DFAL ! PROD1 I TEST CHECK VALVES TO 250 PSI LOW, 3500 PSI HIGH_ 11:00 - 14:00 3.00 DRILL N DFAL PROD1 1 P/U BHA #8 AND RIH. 14:00 - 14:15 0.25 DRILL N DFAL j PROD1 LOG GR TIE -IN FROM 13140 FT. AND MAKE l i -28.5 FT CORRECTION. 14:15 - 15:10 0.92 DRILL N DFAL PROD1 CONTINUE RIH. START PUMPING LINER PILL AROUND AT 15000 FT. 15:10 - 16:30 1.33 DRILL N DFAL PROD1 TAG UP AT 15010 FT. AND GO TO P /U. BECOME MOMENTARILY STUCK AND PULL -i 1i FREE. 1 16:30 - 17:15 0.75 DRILL N DFAL PROD1 CONTINUE PUH TO WORK DEBRIS UP HOLE. I APPEARS THE BHA IS STARTING TO GET I PACKED OFF. WORK DEBRIS BACK UP ' HOLE. 17:15 - 18:00 0.75 DRILL P PROD1 I CONTINUE DOWN TO BOTTOM AND TAG AT 15183 FT. SEE WT. BOBBLES AND MW I I GOING THRU SHALES FROM 14980 FT -1 5050 1 FT AND PUH TO WORK TROUBLE SPOTS. AT THIS POINT THE LINER PILL IS 145 BBLS — UP HOLE. Printed 3/30/2011 11:48:35AM North A merica - ALASKA - BP Page is of t8 Nor Operation Summary Report Common Well Name: S -18 I AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 2/6/2011 End Date: X3- 00V57 -C (2,205,316.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:O0AM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs I Task Code NPT NPT Depth Phase Description of Operations ((hr) (ft) 18:00 - 19:45 1.75 DRILL P PROD1 !TURN AROUND AND GO BACK TO BOTTOM W/ INTENTIONS OF LAYING IN SECOND PILL. 'TAG BOTTOM AND BEGIN POOH. SEE MW AND SLIGHT WT. BOBBLES FROM 15,030 FT. - 14,980 FT AND AT 14860 FT. - 14,830 FT. CONTINUE POOH AND SEE MW AT 14,725 FT. AND 14530 FT. TALK W/ ODE AND DECIDE TO COME BACK UP TO BELOW WINDOW, WORK BACK DOWN, AND LAY IN NEW LINER PILL. ;INCREASE RATE TO 1.8 BPM AND PUH TO 13200 FT. AT 30 FPM. SEE MW AT 14370 FT. 19:45 - 21:15 1.50 DRILL P ! PROD1 TURNAROUND AT 13200 FT. AND WORK BACK DOWN AT 30 FPM TO CLEAN UP TROUBLE SPOTS. MW SEEN AT 15020 FT. WORK PAST ! TROUBLE SPOT AT 15050 FT AND 15075 FT. 21:15 - 23:00 j 1.75 DRILL P PROD1 P/U OFF BOTTOM AND WORK TROUBLE AREAS FROM 15020 FT - 15075 FT WHILE PUMPING NEW PILL AROUND. BEGIN POOH LAYING IN LINER PILL. 0,60 BPM @ 1730 PSI AND 35 FPM. HOLE BEHAVING BETTER THIS TRIP OUT. 23:00 - 00:00 1.00 DRILL P PROD1 PULL UP THRU WINDOW CLEAN. SHUT DOWN PUMPS AND OPEN EDC. BRING PUMPS UP TO 3.0 BPM AND POOH. PVT = 278 BBLS. RE -PAINT EOP FLAGS AT 11570 FT AND 9550 FT. POOH AT 9100 AS OF 00:00. I 2/19/2011 00:00 - 01:30 1.50 DRILL P PROD1 CONTINUE POOH W/ C/O BHA #8 FROM 9100 I FT. _L [PUMPING THRU EDC AT 3 BPM @ 2750 PSI. 01:30 - 01:45 0.25 DRILL P PROD1 PJSM FOR UD BHA #8. 01:45 - 02:15 0.50 DRILL P PROD1 STOP COIL AT 150 FT. FLOW CHECK - NO FLOW. POP OFF INJ. AND STAND BACK. UD BHA #8. ALL SUBSEQUENT REPORTS UNDER THE CON EVENT. Printed 3/30/2011 11:48:35AM • • North America ALASKA BP Page 1 of 10 ; Operation Summary Report Common Well Name: S -18 AFE No Event Type: COM- ONSHORE (CON) I Start Date: 2/19/2011 End Date: ,X3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 I Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28 /2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 2/19/2011 02:15 - 03:00 0.75 CASING P RUNPRD PJSM FOR PUMPING SLACK. PUMP SLACK FORWARD AND RECOVER 304 FT. OF E -LINE. EXPECTED SLACK WAS 194 FT. PUMP FORWARD 2X W/O RECOVERING ANY MORE SLACK. MONITOR HOLE FILL. 03:00 - 04:00 1.00 CASING P 1 j RUNPRD PJSM FOR DRIFTING COIL. BOOT E -LINE AND M/U NOZZLE. DROP 3/4" BALL AND ON SEAT AT 54 BBLS. RECOVER BALL AND REMOVE CTC. 04:00 - 05:00 1.00 CASING P RUNPRD DRESS END OF COIL AND INSTALL BTT EXTERNAL CTC. PULL TEST TO 35K# AND PT TO 4K PSI - BOTH GOOD. PREP RIG FLOOR FOR RUNNING LINER. 05:00 - 05:30 0.50 CASING P RUNPRD PJSM FOR M/U LINER. DISCUSS WELL I CONTROL, OVERHEAD LOADS, AND _ COMMUNICATION. 05:30 - 12:00 6.50 CASING P RUNPRO I PU AND RUN 107 JTS 2 -3/8 4.7# 13 CR STL _ ,LINER W /UNIQUE CEMENTRALIZERS. 12:00 - 13:00 1.00 CASING P RUNPRD I PU BTT SEBLRT LINER RUNNING TOOL 13:00 - 13:40 0.67 CASING. P RUNPRD PU INJECTOR - MU COIL CONNECTOR - STAB ON WELL 13:40 - 15:30 1.83 CASING P RUNPRD RIH W /LINER @100 FPM IN CASED HOLE STOP AT FIRST EOP FLAG AND MAKE -50 FT. CORRECTION. 15:30 - 16:30 1.00 CASING P RUNPRD CONTINUE RIH. SLOW TO 50 FPM THROUGH WINDOW AND OPEN HOLE. WT. CHECK FROM 13000 FT. = 46K# UP. 16:30 - 16:45 0.25 CASING L ID RUNPRD ITAG HARD BOTTOM AT 15167 FT EIGHT TIMES. CALL TOWN TO DISCUSS AND GET OK TO DROP BALL. 16:45 - 17:45 1.00 CASING ! ID RUNPRD ' LAUNCH 5/8" BALL TO RELEASE LINER. BALL ON SEAT AT 51 BBLS. I PRESSURE UP TO 3200# TO RELEASE LINER. P/U 3 FT AND UP WT. IS 7K# LESS. 17:45 - 22:00 4.25 I CASING P RUNPRD I SET BACK DOWN AND STACK 10K# DOWN. I BEGIN DISPLACING WELL OVER TO KCL @ 2 BPM. 19:00 - WELL COMPLETELY SWAPPED OVER TO KCL. CEMENTERS ON LOCATION AT 19:15. BLOW OFF MUD FROM PITS AND FILL W/ KCL. CIRC. AT 1.5 BPM AND 730 PSI. RETURNS 1:1. WAIT TO SPOT CEMENTERS UNTIL VAC TRUCKS ARE MOVED TO FREE UP ROOM DUE TO TIGHT LOCATION. 22:00 - 23:30 I 1.50 CEMT 1 P RUNPRD I SPOT AND R/U CEMENTERS. I MIX BIOZAN IN PIT #5. ' 23:30 - 00:00 0.50 CEMT P RUNPRD PJSM W/ CEMENTERS AND ALL RIG CREW. I 2/20/2011 00:00 - 00:45 0.75 1 CASING P RUNPRD ! 00:10 - BATCH UP CEMENT. — ..CEMENT TO WT AT 00:34 ** Printed 3/30/2011 11:49:06AM 0 North America - AEASKA - BP Page 2 o f 10 t! Summary lie 4 era am ort Operation p . 1I Common Well Name: S -18 j AFE No Event Type: COM- ONSHORE (CON) Start Date: 2/19/2011 End Date: X3- 00V57 -C 1 250 950.00 USD) ; I Project: Prudhoe Bay Site: PB S Pad I Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To I Hrs ' Task ' Code NPT I NPT Depth 1 Phase Description of Operations (hr) __ (ft) I 00:45 - 05:15 4.50 CEMT 1 P ' ; RUNPRD LINE UP TO CMT LINE AND PUMP 5 BBLS TO WARM LINES. SHUT DOWN AND PT CEMENT LINES TO 4500 PSI. 00:55 - ON LINE W/ 51.5 BBLS OF 15.8 PPG CEMENT. ZERO MM AT 15 PPG. 01:30 - LINE UP AND SWAP TO 2 PPB BIOZAN TO DISPLACE CEMENT. 02:03 - S/D PUMPS AND STOP DISPLACEMENT W/ 2 BBLS CEMENT ABOVE SELBRT. 1 P/U 13 FT. ABOVE NEUTRAL AND SIDE EXHAUST 2 BBLS OF CEMENT AND 3 BBLS - j OF BIOZAN. G M' z 02:12 - OPEN BAKER CHOKE AND SET 10K I DOWN. SAME DEPTH AS BEFORE. CLOSE I BAKER CHOKE. _ 1" 02:17 - PRESSURE UP TO 2750 PSI TO SHEAR LWP. DISPLACE LWP TO LANDING COLLAR I i AT 0.8 BPM AT 2060 PSI. PLUG BUMPS AT I 1 12.7 BBLS (0.7 BBLS EARLY). I ;02:35 - PUMP 0.8 BBLS TO PRESSURE UP TO l : 500 PSI OVER CIRC. PRESSURE. 02:40 - S/D PUMPS AND OPEN BAKER CHOKE TO CHECK FLOATS - NO FLOW. PRESSURE ! UP COIL TO 750 PSI AND P/U TO UNSTING LOOKING FOR PRESSURE DROP. PRESSURE I. .BLEEDS OFF TO 350 PSI. 02:45 - CIRC. 5 BBLS AT MIN. RATE AT TOL. 1 CIRC. PRESSURES ARE HIGHER THAN / EXPECTED AND COULD POTENTIALLY BE Y DUE TO EXCESS CEMENT ABOVE. 02:50 - BEGIN POOH REPLACING PIPE 1 VOIDAGE PLUS 0.25 BPM - 1050 PSI AT 0.6 BPM AT START. 04:30 - 0.75 BPM AT 175 PSI. 05:15 - 05:45 0.50 CEMT P r ` RUNPRD PJSM FOR UD BHA. ' TAG STRIPPER AND PERFORM FLOW 05:45 08:00 2.25 CASING P L CHECK. — RUNPRD UD BHA - MU CLEANOUT BHA 08:00 - 10:00 2.00 CASING P RUNPRD I PJSM FOR CLEANOUT RUN - PU / RATTLE FIRST JT OF CSH - LARGE VOLUME OF 1/2" ' DIA MAX CHUNKS OF SCALE FALLING OUT 1 OF PIPE - LD MOTOR AND MILL - PU NOZZLE I AND 4 ADDITIONAL JTS OF CSH - DID NOT SEE ANY ADDITIONAL LARGE PIECES OF SCALE - LD 4 JTS OF CSH AND NOZZLE - PU 10:00 - 14:00 4.00 CASING P MTR AND MILL AND RE -START TIH W /CSH i RUNPRD TIH W /CSH FOR CLEANOUT RUN 1 14:00 - 16:00 2.00 CASING N RREP I RUNPRD FOOT THROTTLE ON DRAWWORKS QUIT WORKING - TROUBLESHOOT AND REPAIR - FOUND SET SCREW ON RHEOSTAT HAD LOOSENED ON SHAFT, CAUSING LOSS OF l CONTROL { 16:00 - 18:00 2.00 CASING P RUNPRD f CONTINUE TIH W/ CSH. TOTAL OF 113 JTS , 1 OF1 "CSH. - RUNPRD P/U INJECTOR AND STAB. 1 1800 18:30 0.50 CASING P ! 7 ! Printed 3/30/2011 11:49:06AM North America - ALASKA - BP Page 3 of 10 Operation Summary Report Common Well Name: S -18 AFE No Event Type: COM- ONSHORE (CON) Start Date: 2/19/2011 End Date: ,X3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM ! Rig Release: 2/28/2011 Rig Contractor NORDIC CALISTA i UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date 1 From - To Hrs Task Code NPT I NPT Depth 1 Phase Description of Operations 18:30 - 21:00 2.50 CASING P (ft) 1 RUNPR I RIH W/ C/O BHA. CONSISTS OF 1.75" MILL, 1- 11/16" BAKER EXTREME MOTOR, CIRC SUB, HYD. DISC., 113 JTS 1" CSH, HI -LOAD DISC. DUAL BPV, AND 2 JTS 2- 1/16" CSH. 1 PERFORM WT. CHECKS FROM 6500 FT. DOWN EVERY 1000 FT. 21:00 - 22:00 1.00 CASING P RUNPRD , RIH TO 10820 FT. NO WT. PROBLEMS BUT `CIRC. PRESSURES ARE HIGH - 1 BPM @ 3700 PSI. CIRC. BOTTOMS UP TO REMOVE EXCESS CONTAMINATED CEMENT. 1 TALK W/ ODE AND DECIDE TO CONTINUE CIRC. B/U AND THEN POOH TO STAND BACK 1" CSH AND P/U 3.80'C/O BHA TO CLEAN THE 4 -1/2" DOWN TO THE TOL 22:00 - 22:45 0.75 CASING P RUNPRD I AT 9.32 PPG ON THE OUT DENSITY START TAKING RETURNS OUTSIDE. TAKE TOTAL OF 51 BBLS OUTSIDE. BRING RETURNS BACK INSIDE AND BEGIN POOH ON TRIP SHEET. 22:45 - CASING _ N CEMT I RUNPRD I POOH W/ 1.75" C/O ASSEMBLY. -- — 2/21/2011 00:00 CEMT 00:15 0.25 CASING N 1 1 RUNPRD f PJSM FOR UD C/O BHA AND STANDING BACK 11" WORKSTRING. 100:15 - 02:30 2.25 CASING N ; CEMT RUNPRD 'TAG STRIPPER. FLOW CHECK WELL - I CONFIRM NO FLOW. UNSTAB COIL AND PLACE INJ. ON LEGS 1 OVER BUNGHOLE. 1 UD 1.75" C/O BHA. STAND BACK 56 STANDS OF 1" CSH AND UD 1 SINGLE. — I I FILL HOLE EVERY 2 BBLS. 03:00 - 03:15 0.25 CASING N CEMT I RUNPRD PJSM FOR M/U 3.80" C/O BHA. 03:15 - 04:00 ! 0.75 CASING N CEMT RUNPRD M/U 3.80" C/O BHA CONSISTING OF 3.80" MILL, 2 -7/8" BAKER EXTREME MOTOR, CIRC. SUB, HYD. DISC., DUAL BPV, AND 2 JTS OF 2 -3/8" PI16. 1 BHA OAL = 83.1 FT. 04:00 - 07:15 ', 3.25 CASING ! N CEMT RUNPRD RIH AT MIN RATE. 0.3 BPM @ 170 PSI. CHROME RUN #5 - WEIGHT CHECK @9000', .4 j BPM, 37k - TAKE RETURNS OUTSIDE FROM 111760' - NO MOTOR WORK OR PSI INCREASE 1 - MAX FLUID WT TO SURFACE WAS 9# FOR A I BRIEF PERIOD - APPEARS THAT HOLE WAS JUST ABOUT CLEANED UP ON INITIAL RUN W /CSH. 07:15 11:10 3.92 CASING N ' CEMT 1 RUNPRD I START BIO DOWN HOLE - TAG TOL @11821 L AND POOH 11:10 - 11:45 0.58 CASING N RREP i r RUNPRD I TAGGED UP @ SURFACE AND W/O DRAW 1 WORKS THROTTLE REPAIR 11:45 - 12:30 0.75 CASING N 1 CEMT 1 RUNPRD 1 POP OFF WELL AND LD BHA - CEMENT FOUND IN WATER COURSES ON MILL. - -- - - -- - - -- - - -- - 12:30 13:00 0.50 BOPSUR P RUNPRD PJSM FOR BOPE TEST AND PREP { — EQUIPMENT 13:00 - 21:00 i 8.00 BOPSUR �I P I RUNPRD ;CONDUCT 14 DAY ROPE TEST -JOHN CRISP p e W/ AOGCC WAIVED RIGHT TO WITNESS WHEN NOTIFIED @ 0600 ON 2/20/11. PT / BOPE AS PER AOGCC REGS, ADWOP, WELL PLAN, AND PTD. 1 I BLIND RAMS FAILED PT. Printed 3/30/2011 11:49:06AM North America - ALASKA - BP Page4 o 1 0 - O peration Summary Report ` Common Well Name: S -18 AFE No Event Type: COM- ONSHORE (CON) 1 Start Date: 2/19/2011 End Date: X3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28 /2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date i From - To Hrs Task Code NPT NPT Depth Phase Description of Operations 21:00 22:00 1.00 BOPSUR 1 N SFAL (ft) RUNPRD j TEST MASTER AND SWAP INDEPENDENTLY AS PER CRT- AK -10 -36 IN PREPARATION FOR IC /O BLIND /SHEAR RAMS. ' I C/O BLIND /SHEAR RAMS AND RE -TEST TO _ 1250 PSI LOW 13500 PSI HIGH - PASS. 22:00 - 23:00 1.00 BOPSUR P 1 ! RUNPRD ; P/U INJECTOR AND STAB ON WELL. PT INNER REEL VALVE AND CT PACK -OFF. 23:00 - 00:00 1.00 CASING P RUNPRD IPJSM FOR UNSTABBING INJ. AND 1 j PERFORMING COIL SLACK MANAGEMENT. R/U CT HYD. CUTTER AND CUT 110 FT OF COIL - NEW REEL LENGTH = 15615 FT. `BOOT E -LINE AND DRESS END OF COIL FOR RE- HEADING. 2/22/2011 00:00 - 01:00 1.00 CASING P RUNPRD INSTALL BOT EXTERNAL CTC. PULL TEST TO 30K AND PT TO 4000 PSI - I GOOD. STAND BACK INJ. ON LEGS AND PREP FLOOR FOR M/U C/O BHA. 01:00 - 04:30 3.50 CASING P 1 .RUNPRD PJSM FOR M/U LINER CIO ASSEMBLY. M/U 1.75" C/O ASSEMBLY CONSISTING OF 1.75" HCC MILL, 1-11/16" BAKER EXTREME IMOTOR, 1/2" CIRC. SUB, 5/8" HYD DISC., 113 1JTS 1" CSH, 3/4" HI -LOAD DISC., DUAL BPV, fAND 2 JTS 2- 1/16" CSH. 03:15 1 WHILE RUNNING CS H O N ' ELEVATORS, DRILLER HELD UNANNOUNCED i 1 KICK DRILL. CREW RESPONDED BY P/U SAFETY JT. AND LATCHING IN ELEVATORS. 04:30 - 05:00 0.50 CASING P RUNPRD RIH W/ LINER C/O ASSEMBLY AT 0.4 BPM / _ _ 1315 PSI CIRC. 05:00 - 05:30 l i 0.50 CASING N SFAL 1 RUNPRD WHILE RIH 1 -1/2" INNER REEL PLATE BOLT ! SHEARED OFF AT THE HEAD. PERFORMED LOTO OF THE REEL AND INSTALLED SAFETY BAR. BOLT WAS REMOVED AND REPLACED. ALL OTHER REEL PLATE BOLTS WERE INSPECTED TO ENSURE THEY WERE TIGHT AND FREE OF ANY STRESS CRACKS OR FATIGUE. 1 05:30 - 06:35 1.08 CASING P RUNPRD ! CONTINUE RIH W/ LINER C/O ASSEMBLY. 106:35 - 07:35 1.00 CASING ! P RUNPRD I RIH W/ WEIGHT CHECK @11500', .31 BPM, 20 FPM, 40K# �i 07:35 - 08:25 0.83 CASING P RUNPRD 1 MILL THROUGH STRINGERS @ 12345' - PMP I 40 LSRV SWEEPS EVERY 300' - NO VISIBLE 09:05 II I 0.67 CHANGE IN RETURNS 08:25 CASING j P RUNPRD ! MILL STRINGERS TO 12467' - 150- 200PSI 09:05 09:50 0.75 I CASING P RUNPRD I MOTOR WORK - I- ' 'SEE STRINGERS TO 12700 BUT LITTLE TO NO MOTOR WORK 09:50 - 10:00 I I I 0.17 CASING P RUNPRD 13400' - STILL SEEING STRINGERS, GREEN CEMENT, 50 -70# MOTOR WORK 10:00 - 10:20 0.33 CASING I P RUNPRD 1C/0 @ 13500 W/ WT CK - 45k UP 10:20 10:55 0.58 CASING P RUNPRD CONTINUE C/O HOLE @13800 - 46k UP, 11.14BPM, 3800 FREE SPIN 10:55 11:10 0.25 I CASING P RUNPRD II 14400 - TIN CLEAN WITH NO MOTOR WORK - 48K UP 111:10 - 11:30 0.33 CASING P : RUNPRD 14775 - 49K UP,1.08 BPM, 3816 FREE SPIN Printed 3/30/2011 11:49:06AM - - North America - ALASKA BP ' , Page :5_of 10 0 Operation Summary Report Common Well Name: S -18 AFE No Event Type: COM- ONSHORE (CON) Start Date: 2/19/2011 I End Date: 1 X3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor NORDIC CALISTA I UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs I Task '. Code NPT NPT Depth 1 Phase Description of Operations (hr) I (ft) i 11:30 - 12:45 1.25 r CASING P �I I RUNPRD TAG TOP OF SHOE TRACK @ 15175.6 & SEE j INCREASE IN MOTOR WORK - PMP SWEEP ANDPOH 12:45 - 13:00 I 0.25 CASING I P 1 RUNPRD PMP 1/2" BALL AND CONDUCT KICK WHILE DRILLING DRILL 1 13:00 - 15:00 2.00 CASING P 1 RUNPRD Continue TOH to CTC 115:00 - 16:00 1.00 CASING P RUNPRD I PJSM FOR SB 2 V16, SWIZZLE BOP, STAND BACK INJECTOR ON STANDS 16:00 - 18:50 2.83 CASING P RUNPRD ' TOH AND SB CSH 18:50 - 20:30 1.67 CASING P RUNPRD LAY DOWN BHA - RECOVER 1/2" BALL FROM _ __ 'SWIZZLE 120:30 - 21:00 0.50 CASING P I RUNPRD ' PJSM TO LOAD SWS MEM LOG TOOLS ON I I i RIG - ----- - - - - -- - -- - - - - - -- -- — -- -- —= -=- 21:00 - 21:30 0.50 CASING P 1 RUNPRD I HOLD PJSM TO MU LOGGING TOOLS AND I I CSH 21:30 - 23:00 1.50 CASING P RUNPRD i MU LOGGING BHA I 23:00 23:45 0.75 CASING P 1 , RUNPRD PU INJETOR AND MU TO BHA 23:45 - 00:00 0.25 CASING I P RUNPRD RIH I - 2/23/2011 00:00 01:20 1.33 CASING P RUNPRD CONTINUE RIH 01:20 01:30 , 0.17 CASING j P RUNPRD I WT CK AT 11000'= 37K RIH WT= 9.6K 01:30 - 04:30 3.00 EVAL I P RUNPRD 11,100' PAUSE THEN START LOGGING DOWN AT 30 FPM I I j 02:10 START PERF PILL DOWN COIL I SET DOWN AT 12577', 12682', 12731', 13073' ,,// j LOOKS LIKE HYDRAULICS, REDUCE PUMP RATE AND RIH 1 03:50 STACKED OUT AT 14300', SHUT DOWN PUMP AND CAN RIH 04:30 05:00 0.50 EVAL ' RUNPRD 'TAG PBTD © 15174' PU TO UP WT AND j FINISH DISPLACING PERF PILL 05:00 - 06:20 1.33 1 EVAL P RUNPRD POOH LAYING IN LINER PILL P IA NT FLAG AT 14968' EOP= 11405' I PAINT FLAG AT 11720' EOP= 8157' 1 06:20 - 07:40 1.33 EVAL P — RUNPRD FINISH LOGGING INTERVAL AND POOH L 07:40 - 08:00 ! 0.33 CASING P RUNPRD 'TAGGED UP - PJSM TO STAND BACK INJECTOR AND SB CSH 08:00 - 10:30 2.50 CASING P RUNPRD J POH & SB CSH 10:30 - 10:55 0.42 EVAL P RUNPRD 'II EVALUATE LOGS - LOGGERS SAY GOOD DATA 10:55 - 11:05 1 0.17 CASING P RUNPRD 1PJSM FOR LINER LAP PSI TEST 11:05 - 16:40 r 5.58 CASING P RUNPRD PSI UP TO 250 FOR 5 MINUTES -GOOD- WALK UP TO 2400# AND SI - 15 MIN / 2271, 30 MIN / I I, 2148 - FAILED TEST - PSI UP 3 MORE TIMES 1 !WITH SIMILAR RESULT - CALL TOWN TO DISCUSS OPTIONS - DECIDE TO BLEED OFF 1 AND CHECK FOR AIR AND DOUBLE BLOCK LINES ON CHOKE MANIFOLD - INITIATE ' SECOND TEST - PSI UP TO 250 FOR 5 MIN - GOOD - WALK UP TO 2477 AND SI - 15 MIN / 12303, 30 MIN / 2175 - FAILED TEST - CALL TOWN AND DECIDE TO RUN LINER TOP ! PACKER. Printed 3/30/2011 11 :49:06AM 0 North Ames ca.- `ALASKA - BP Page a of V) Operation Summary Report Common Well Name: S -18 AFE No Event Type: COM- ONSHORE (CON) 1 Start Date: 2/19/2011 End Date: X3- 00V57 -C (1,250,950.00 USD) I 1 Project: Prudhoe Bay 1 Site: PB S Pad Rig Name /No.: NORDIC 2 ; Spud Date/Time: 7/27/1985 12:00:OOAM 1 Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs ; Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:40 - 18:30 1.83 CASING N WAIT RUNPRD PHASE II CALLED W/ DRILLING SAFETY SAYING HE EXPECTS TO GO TO PHASE 3 AFTER CHANGEOUT. LOAD PERFORATING 1 GUNS INTO PIPE SHED AND WAIT ON WEATHER BEFORE RUNNING IN NHOLE ' 18:30 - 21:30 3.00 CASING N WAIT RUNPRD 1CREWS CHANGED OUT 1 PU INJECTOR, STAB ON WELL AND RIH TO - 100' AND CIRCURCULATE BELOW SURFACE _ 1 _ TO KEEP WELLHEAD WARM DURING BLOW 21:30 - 00:00 2.50 CASING N WAIT RUNPRD MADE CALLS TO BP RADIO, BOC & MCC SECURITY FOR AND UPDATE ON THE WEATHER AND HEAVY EQUIPMENT IS IN CHARGE OF MAKING THE PHASE DECISIONS. ISO I TALKED TO THE HEAVY EQUIPMENT LEAD AND HE SAID WE ARE AT A "HEAVY PHASE 2" AND IT COULD GO TO PHASE 3 AT ANYTIME. 1 — I CONTINUE WOW 2/24/2011 00:00 - 03:30 3.50 CASING N , WAIT RUNPRD CONTINUE WOW 03:30 - 04:20 0.83 r CASING P RUNPRD ■ WEATHER CONDITIONS HAVE IMPROVED, SECURITY HAS SAID THEY ARE NOT GOING TO CALL PHASE 3 ANYTIME SOON, CH2 WILL PROVIDE FLUID SUPPORT IF NEEDED SO WE L 'ARE GOING TO CONTINUE OPERATIONS 04:20 - 04:45 0.42 CASING P RUNPRD PJSM TO MU PERF GUN BHA _ 04:45 - 06:40 1.92 CASING j P RUNPRD ' MU PERF BHA & RIH 06:40 - 08:10 1.50 CASING 1 P RUNPRD PICK UP CSH 08:10 - 08:30 f 0.33 CASING P 1 RUNPRD I PJSM TO PU INJECTOR 08:30 - 10:05 j 1.58 CASING P RUNPRD RIH W /CT CHROME RUN #3 — _ 1 1 10:05 - 10:15 0.17 ! CASING P RUNPRD I WEIGHT 11500', 336PM, 2OF 0FPM, 40K ;10:15 RUNPRD 11:45 1.50 CASING P I STOPPED @ FIRST FLAG 11758' - EOP 8184 1 ! _ UNCORRECTED 1 11:45 - 11:56 0.18 CASING P h RUNPRD STOPPED @ SECOND FLAG15002' - 11436' j EOP, UNCORRECTED 11:56 - 12:15 0.32 RUNCOM P RUNCMP I TAGGED PBTD 3 TIMES @15171.3', PU TO WT @ 15164.1, CORRECT TO 15147.4 - PU TO 115143.6 AND INITIATE FIRING SEQUENCE 12:15 - 12:45 0.50 RUNCOM P RUNCMP 1 PERFORATE 14250 - 14950, 15030 - 15140 P 1W/1.56, 6SPF, 1606PJ GUNS - GOOD I i INDICATION OF FIRING AT SURFACE — - 12:45 19:00 � 6.25 '� RUNCOM ' P I RUNCMP ' TOH W/ FIRED TCP GUNS 19:00 - 19:30 1 0.50 RUNCOM P RUNCMP CSH PULLED AND PERF GUNS AT SURFACE, I PJSM TO LD SPENT PERF GUNS 19:30 - 21:30 2.00 RUNCOM P RUNCMP WE HAVE HOLES, LD SPENT GUNS - - - - - - -- -- - -- 21:30 - 22:30 1.00 RUNCOM P RUNCMP f SPENT GUNS OOH, ALL SHOTS FIRED. OFF LOAD GUNS 22:30 - 22:50 1I 0.33 RUNCOM P RUNCMP I PJSM TO MU LTP BHA 22:50 - 23:10 0.33 RUNCOM P RUNCMP SWAP LITTLE JERK JAWS FOR LTP CONNECTIONS LT a 23:10 - 23:40 0.50 RUNCOM P RUNCMP MU LTP BHA 23:40 - 00:00 0.33 RUNCOM P RUNCMP I RIH W /LTP BHA MIDNIGHT DEPTH 2200' 2/25/2011 00:00 I RUNCOM N WAIT I RUNCMP ' CONTINUE WOW 00 :00 - 01:45 1.75 RUNCOM P r RUNCMP CONTINUE RIH AT 2200' Printed 3/30/2011 11:49:06AM North America - ALASKA - BP Pa9.e t of 10 Operation,Sumna Report Common Well Name: S -18 i AFE No Event Type: COM- ONSHORE (CON) Start Date: 2/19/2011 I End Date: !X3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code I NPT NPT Depth Phase 1 Description of Operations (hr) (ft) 01:45 - 02:05 0.33 RUNCOM P RUNCMP WT CK AT 11500'= 48K WT CK AT 11750'= 50K LOCATE TOL AT 11827' (UNCORRECTED) WITH SEALS GET DEPTHS AT WEIGHTS FOR SETTING PACKER AND PU TO BALL DROP POSITION 02:05 - 03:00 0.92 RUNCOM P RUNCMP DROP 5/8" STEEL BALL BALL OVER GOOSENECK AT CORRECT VOLUME 102:30 REDUCE RATE TO LAND BALL ON SEAT j 02:45 BALL ON SEAT, BLEED OFF PRESSURE AND STING BACK INTO TOL AND STACK 10K DOWN TO VERIFY DEPTH, DEPTH IS GOOD I PU TO UP WEIGHT +1' AND PRESSURE UP TO '1700 PSI THEN BLEED OFF 02:55 STACK 10K DOWN AND PREP TO PT LTP DOWN BACKSIDE 03:00 03:13 - 0.22 RUNCOM P RUNCMP PT LTP, LPT= 260 PSI GOOD LOW PT 03:05 INCREASE PRESSURE TO 2400PSI 03:13 - 03:45 0.53 RUNCOM P RUNCMP j START HIGH PRESSURE TEST START PRESSURE= 2454 PSI - I PRESSURE AFTER 15 MIN= 2421 PSI, LOST 33 PRESSURE AFTER 30 MIN= 2424 PSI, LTP PASSED PT * * **WTL WAS NOTIFIED OF THE PASSING MIT OF THE LTP AND WE WERE GIVEN 1 PERMISSION TO PROCEED WITH OUR OPERATIONS. * * ** 03:45 - 04:00 0.25 RUNCOM P RUNCMP BLEED OFF WHP THEN PRESSURE UP TO SHEAR RELEASE SHEARD OFF LTP AT 4020 PSI, PU AND WAIT FOR TRUCK TO BACK IN TO SWAP WELL OVER TO KCL 04:00 - 05:15 1.25 RUNCOM I P � RUNCMP BACK IN KCL TRUCK 05:15 - 00:00 18.75 RUNCOM N WAIT 11,815.00 RUNCMP TRUCK PUSHER & DRIVER CAN'T SEE GOOD ENOUGH TO BACK TRUCK DOWN ACCESS ROAD AND THE FIELD JUST WENT TO PHASE 3. SUSPEND OPERATIONS AND LIMIT WORK TO WALK AROUNDS JUST TO INSPECT EQUIPMENT UNTIL PHASE 3 IS LIFTED. WTL WAS NOTIFIED OF THE PASSING MIT OF THE LTP AND WE WERE GIVEN PERMISSION TO PROCEED WITH OUR OPERATIONS. 2/26/2011 00:00 - 02:00 2.00 RUNCOM N WAIT 11,815.00 RUNCMP CONTINUE WOW SPOKE TO D &C HSE ADVISOR ABOUT CLEARING AROUND RIG AND SENDING THE LOADER DOWN THE ACCESS ROAD TO SEE IF IT IS CLEAR AND WE HAVE THE OK TO MAKE OUR WAY TO THE SPINE PROVIDED I WE DO A RISK ASSESSMENT. ALSO GOT PERMISSION FROM THE IMT(REX HARRELL) !AS WELL. 702:00 - 04:30 2.50 RUNCOM N WAIT 11,815.00 RUNCMP 1CLEARING SNOW AROUND SAT CAMP TO GET ACCESS TO A PICK UP 04:30 - 05:30 'l 1.00 RUNCOM j N WAIT ! 11,815.00 RUNCMP 1CLEARING SNOW ON SHORT ACCESS ROAD TO GET TO MAIN ACCESS ROAD 04:50 HEAVY EQUIPMENT IS MAKING THEIR WAY DOWN THE ACCESS ROAD TO THE PAD Printed 3/30/2011 11:49:06AM North A neri a'- A c ALASKA BP F, & of to . Operation Summary Report Common Well Name: S -18 I AFE No Event Type: COM- ONSHORE (CON) Start Date: 2/19/2011 1 End Date: X3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date i From - To Hrs ; Task Code NPT 1 NPT Depth Phase Description of Operations (hr) ' (ft) 05:30 - 06:00 0.50 1 RUNCOM N WAIT ! RUNCMP GOT THE OK FROM IMT TO DO CREW CHANGE - ROADS AND PADS BLOWER / GRADER MADE PASS AROUND THE 40 MAN - - - - - - -- - -- - -- - - -- - - - - -� — - - - - -- -- - - - - -- I -- CAMP TO PROVIDE ACCESS 06:00 - 10:30 4.50 RUNCOM N WAIT RUNCMP 1 CONTINUE WAIT ON WEATHER - CALLED PHASE 2 LEVEL 3 - CALLED IMT AND GOT I PERMISSION FOR 2 SLB, 3 NORDIC, AND 4 CH2 EMPLOYEES TO TRAVEL TO DEADHORSE FOR FLIGHTS - CONTINUE TO CIRCULATE FLUID THROUGH COIL TO KEEP FROM FREEZING 110:30 - 14:00 3.50 RUNCOM N WAIT RUNCMP COMMENCE SNOW REMOVAL AND TRYING TO START VAC TRUCK S - CH2 MECHANIC ARRIVED TO ASSIST 14:00 - 18:00 4.00 RUNCOM l N WAIT RUNCMP FUEL TRUCK ARRIVED TO FILL TRUNK HEATERS AND VAC TRUCK PONY MOTORS - ! GOT 1 TRUNK HEATER AND 1 VAC TRUCK i BACK RUNNING 18:00 - 00:00 : 6.00 RUNCOM N . WAIT RUNCMP ; CREW CHANGE, CH2 MECHANICS WORKING ON VAC TRUCKS TO GET THEM STARTED AND MOVED IN TO SWAP WELL TO KCL j ;CONTINUE WAITING FOR MECHANICS TO 1- { !GET VAC TRUCKS RUNNING 2/27/2011 00:00 - 02:40 2.67 RUNCOM ; P RUNCMP CONTINUE WAITING FOR VAC TRUCKS TO BE BACKED IN FOR FLUID SWAP 02:40 - 03:35 0.92 RUNCOM ' P RUNCMP VAC TRUCKS INPLACE, SWAP WELL TO 2% KCL W /SAFELUBE RUNCOM P 03:35 - 06:30 2.92 f RUNCMP WELL SWAPPED TO KCL AND WE ARE _ L . CIRCULATING IN AND OUT OF 1 PIT, POOH — — i 06:30 06:50 0.33 RUNCOM P RUNCMP OUT OF HOLE - FLOW CHECK AND SB 1 INJECTOR 06:50 - 07:10 0.33 RUNCOM P J RUNCMP LD BHA - RECOVER 5/8" BALL 07 :10 - 07:25 0.25 RUNCOM P RUNCMP PU INJECTOR TO FREEZE PROTECT WELL 07:25 - 07:40 0.25 RUNCOM P RUNCMP 'INJECTOR STABBED ON WELL AND REDADY FOR PJSM W /LRS 07:40 - 08:10 0.50 RUNCOM P RUNCMP PJSM FOR PUMPING DIESEL FOR FREEZE PROTECT W/ LRS 08:10 - 09:10 1.00 RUNCOM P RUNCMP TIH TO 2500' AND STOP JOB TO GET SNOW REMOVED FOR POTENTIAL EMERGENCY ACCESS TO ODS SIDE OF RIG 09:10 - 13:05 3.92 RUNCOM N WSEQ j RUNCMP ' R &P BLOWER AND GRADER CLEARING SNOW 13:05 - 14:30 1.42 RUNCOM P RUNCMP , PSI TEST TO 4000# AND PUMP 41 BBLS OF DIESEL TO FREEZE PROTECT WELL 14:30 - 15:30 1.00 RUNCOM P RUNCMP 1 PJSM AND RU N2 TRUCK AND CORROSION INHIBITOR TO PICKLE AND BLOW DOWN COIL - PSI TST ALL FLOW IRON TO 4000# 15:30 - 16:00 0.50 RUNCOM P , RUNCMP 'CORROSION INHIBITOR AND 9 BBL OF MEOH RUNCOM ! T - PUMPED INTO REEL - 16:00 18:00 ! 2.00 I P RUNCMP CREW CHANGE ,18:00 - 19:00 1.00 RUNCOM P RUNCMP : UNSTAB COIL & MU GRAPPLE 1 19:00 - 22:15 3.25 �', RUNCOM 1 P RUNCMP SECURE COIL AT THE REEL RD HARDLINE, ELINE J -BOX, REMOVE DRIVE PLATE BOLTS, LIFT REEL AND STROKE OUT MOTORS 22:15 - 23:00 0.75 RUNCOM P 1 RUNCMP I OPEN SWAB AND PT MASTER TO RU BPV LUBRICATOR Printed 3/30/2011 11:49:06AM Notch Amer- ALASKA - BP Pages of 10 Operation Summary Report Common Well Name: S -18 AFE No Event Type: COM- ONSHORE (CON) Start Date: 2/19/2011 j End Date: X3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 7/27/1985 12:00:OOAM I Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34 : 18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 123:00 - 00:00 1.00 RUNCOM P RUNCMP PT GOOD RU BPV LUBRICATOR PT LUBRICATOR, MASTER VALVE IS LEAKING 2/28/2011 00:00 - 00:45 0.75 RUNCOM P RUNCMP I CONTINUE PT LUBRICATOR TO SET BPV MASTER VALVE LEAKING, BUMP UP PRESSURE 00:45 - 01:00 0.25 1 RUNCOM P RUNCMP ! FINALLY GOT A GOOD PT SET BPV 01:00 - 01:15 0.25 RUNCOM P RUNCMP REEL TRAILER IN PLACE, PJSM WITH DRIVER I & PUSHER TO LOWER REEL 01:15 - 01:30 0.25 RUNCOM P C RUNCMP BPV SET, CLOSE MASTER AND SSV AND � I MONITOR FOR LEAK TIGHT SEAL AS PER VALVE CREW RP FOR REMOVING THEIR LUBRICATOR, GOOD LEAK TIGHT CHECK, RD LUBRICATOR I LOWER REEL ONTO TRAILER 01:30 - 02:00 0.50 RUNCOM P - RUNCMP 1 REEL LOWERED ONTO TRAILER ■ BPV CREW RD 02:00 - 03:35 1.58 RUNCOM P f RUNCMP NOW PERFORM INDIPENDENT PRESSURE 1TESTS ON MASTER AND SWAB AS PER I CRT- AK -10 -36 TO OPEN BOP DOORS TO SWAP TO 2 ". THIS TEST WILL ALSO BE GOOD FOR REMOVING THE BOP'S/BREAKING I CONTAINMENT WHEN COMPLETED. tCLOSE CHOKE & KILL HCR'S MASTER VALVE TEST PRESSURE UP FOR LPT, GOOD LPT ON MASTER INCREASE TO HP, GOOD HPT, BLEED OFF AND CLOSE SWAB SWAB VALVE TEST LPT PRESSURE ON SWAB IS INCREASING, BLEED OFF TO 350 AND MONITOR. PRESSURE STILL INCREASING, BLEED OFF I WHP TO ZERO OPEN SWAB AND CHECK FOR FLOW AT THE WHITEY NO FLOW, SHUT IN WHITEY AND MONITOR FOR PRESSURE INCREASE. NO PRESSURE INCREASE, PRESSURE UP FOR LTP, GOOD LPT INCREASE PRESSURE FOR HPT. HIGH PRESSURE BLEEDING OFF, BUMP UP TO 3980 PSI, STILL HAVE A SLOW BLEED OFF, SHUT IN MANUAL VALVES ON CHOKE & KILL LINES, PRESSURE STARTING TO STABILIZE 03:35 - 03:50 I 0.25 RUNCOM P RUNCMP GOOD PT ON BOTH MASTER & SWAB VALVES OPEN KILL & CHOKE HCR'S AND MANUAL VALVES AND BLEED OFF CONFIRM LEAK TIGHT SEAL AS PER CRT- AK- 10 -36, GOOD LEAK TIGHT SEAL TEST 2" REEL LOADED AND SECURED IN REEL STAND 03:50 - 06:00 j 2.17 -[ RUNCOM ' P fi RUNCMP - NORDIC CREW PJSM TO BLOW DOWN STACK AND SWAP BOP'S TO 2" SLB PJSM TO SWAP INJECTOR BLOCKS TO 12" 1 06:00 - 08:30 2.50 RUNCOM P RUNCMP I CREW CHANGE - PJSM & CONTINUE INJECTOR BLOCK CHANGE AND GREASE MUD CROSS RUNCMP PJSM FOR ND BOPE 08:30 09:00 I 0.50 I RUNCOM P -- - � - - -_ -_- _ -- Printed 3/30/2011 11:49:O6AM Noret America - ALASKA BP Page 10 of 10 Summary Report Common Well Name: S -18 AFE No Event Type: COM- ONSHORE (CON) Start Date: 2/19/2011 1 End Date: FX3- 00V57 -C (1,250,950.00 USD) Project: Prudhoe Bay Site: PB S Pad Rig Name /No.: NORDIC 2 I Spud Date/Time: 7/27/1985 12:00:OOAM Rig Release: 2/28/2011 Rig Contractor: NORDIC CALISTA UWI: 500292115600 Active Datum: 34:18 7/26/1985 00:00 @75.29ft (above Mean Sea Level) Date From - To Hrs Task Code I NPT NPT Depth Phase Description of Operations (hr) _L_— (ft) 09:00 - 10:40 1.67 RUNCOM P RUNCMP NU AND TST TREE CAP TO 250 / 3500 - FINISH 2" GRIPPER BLOCK INSTALLATION AND SERVICE INJECTOR 10:40 - 12:00 1.33 RUNCOM P RUNCMP RD TEST EQUIPMENT - SECURE CELLAR 12:00 - 14:30 2.50 RUNCOM ! P RUNCMP RD HANDI -BERM AND CONTINUE TO REMOVE SNOW FROM AROUND THE RIG W/ SKID STEER - CALLED WELL SUPPORT AND GOT CONFIRMATION THAT ALL PRE -RIG WORK HAS BEEN COMPLETE ON S-01C 14:30 - 18:00 3.50 RUNCOM P RUNCMP - RIG DOWN TO MOVE - START TO WARM UP MOVING SYSTEM 18:00 - RUNCOM P RUNCMP CREW CHANGE AND RELEASE RIG Printed 3/30/2011 11:49:06AM • 0 nag BAKER HUMES INTEQ North America - ALASKA - BP Prudhoe Bay PBS Pad S -18 500292115600 S -18B Survey: MWD Survey Report - Geographic 22 February, 2011 • Mill • MAIER Survey Report - Geographic 0 bp LNTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S-18 Project: Prudhoe Bay TVD Reference: S -18A @ 72.29ft (Doyon 14) Site: PB S Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Well: S -18 North Reference: True Welibore: S -18B Survey Calculation Method: Minimum Curvature Design: S -18B Database: EDM .16 - ANC Prod - WH24P Project Prudhoe Bay, GPB, PRUDHOE BAY Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB S Pad, TR -12 -12 I Site Position: Northing: 5,980,854.54ft Latitude: 70° 21' 23.002 N From: Map Easting: 617,919.92ft Longitude: 149° 2' 32.343 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 0.90 ° Well S -18 API No 500292115600 Well Position +N / -S 0.00 ft Northing: 5,979,169.00 ft Latitude: 70° 21' 6.276 N +E / -W 0.00 ft Easting: 618,885.00 ft Longitude: 149° 2' 4.914 W I Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00ft Welibore S -188 API No 500292115602 Magnetics Model Name Sample Date Declination Dip Angie Field Strength r) r) (nT) BGGM2010 2/7/2011 21.59 80.98 57,651 Design S-18B — — Audit Notes: Version: Phase: ACTUAL Tie On Depth: 13,150.75 Vertical Section: Depth From (TVD) +N / - S +E / -W Direction (ft) (ft) (ft) r) 33.80 0.00 0.00 169.70 Survey Program Date: 2/22/2011 -- - - - -- -- - -- - - - —__ - From To (ft) (ft) Survey (Welibore) Tool Name Description 107.60 10,936.40 1 : Schlumberger GCT multishot (S -18) GCT -MS Schlumberger GCT multishot 10,937.40 13,150.75 S -18A IIFR (S -18A) MWD +IFR +MS MWD + IFR + Multi Station 13,166.00 15,183.00 MWD (S -18B) MWD MWD - Standard 2222011 1103 :13AM Page 2 COMPASS 2003.16 Braid 73 W,, • • MAKER St fey Report - Geographic bp INFEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 5 Project: Prudhoe Bay TVD Reference: S -18A © 72.29ft (Doyon 14) Site: PB S Pad MD Reference: S -18A © 72.29ft (Doyon 14) Well: S - 18 North Reference: True Welibore: S - 186 Survey Calculation Method: Minimum Curvature Design: S - 18B Database: EDM .16 - ANC Prod - WH24P Survey I Measured Vertical Map Map Depth Inclination Azimuth Depth +NI -S +Et -W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 13,150.75 93.51 211.75 8,952.03 - 8,485.67 382.47 5,970,691.17 619,402.02 70° 19' 42.820 N 149° 1' 53.748 W TIP I 13,166.00 93.36 213.26 8,951.11 - 8,498.51 374.29 5,970,678.21 619,394.05 70° 19' 42.694 N 149° 1' 53.987 W KOP 13,180.67 91.13 214.90 8,950.54 - 8,510.65 366.08 5,970,665.94 619,386.03 70° 19' 42.575 N 149° 1' 54.227 W 13,210.19 91.44 217.75 8,949.88 - 8,534.43 348.60 5,970,641.90 619,368.93 70° 19' 42.341 N 149° 1' 54.737 W 13,241.87 85.63 215.00 8,950.69 - 8,559.91 329.83 5,970,616.12 619,350.56 70° 19' 42.090 N 149° 1' 55.285 W 13,269.22 79.94 213.59 8,954.12 - 8,582.32 314.54 5,970,593.47 619,335.64 70° 19' 41.870 N 149° 1' 55.731 W 13,305.27 79.03 206.15 8,960.71 - 8,613.03 296.90 5,970,562.49 619,318.49 70° 19' 41.568 N 149° 1' 56.246 W I 13,332.76 79.67 200.89 8,965.79 - 8,637.79 286.12 5,970,537.56 619,308.10 70° 19' 41.324 N 149° 1' 56.561 W 13,360.53 80.47 194.64 8,970.58 - 8,663.83 277.78 5,970,511.40 619,300.18 70° 19' 41.068 N 149° 1' 56.804 W 13,390.55 79.09 186.96 8,975.92 - 8,692.82 272.25 5,970,482.32 619,295.11 70° 19' 40.783 N 149° 1' 56.966 W I 13,423.78 80.69 180.94 8,981.76 - 8,725.44 270.00 5,970,449.67 619,293.38 70° 19' 40.462 N 149° 1' 57.032 W 13,455.23 82.42 173.03 8,986.38 - 8,756.48 271.64 5,970,418.67 619,295.51 70° 19' 40.157 N 149° 1' 56.984 W 13,489.39 82.43 168.77 8,990.89 - 8,789.91 276.99 5,970,385.33 619,301.39 70° 19' 39.828 N 149° 1' 56.828 W 13,517.26 82.59 164.64 8,994.52 - 8,816.79 283.35 5,970,358.55 619,308.17 70° 19' 39.564 N 149° 1' 56.642 W , 13,547.71 86.06 159.94 8,997.53 - 8,845.65 292.57 5,970,329.85 619,317.84 70° 19' 39.280 N 149° 1' 56.373 W 13,576.90 88.28 154.45 8,998.98 - 8,872.51 303.86 5,970,303.17 619,329.56 70° 19' 39.016 N 149° 1' 56.043 W; 13,603.39 88.56 149.56 8,999.71 - 8,895.88 316.29 5,970,280.00 619,342.36 70° 19' 38.786 N 149° 1' 55.681 W I 13,631.66 88.56 144.13 9,000.42 - 8,919.53 331.74 5,970,256.60 619,358.18 70° 19' 38.553 N 149° 1' 55.230 W j 13,659.08 86.56 140.40 9,001.59 - 8,941.19 348.50 5,970,235.21 619,375.28 70° 19' 38.340 N 149° 1' 54.740 W 13,693.55 88.00 137.05 9,003.22 - 8,967.07 371.21 5,970,209.70 619,398.40 70° 19' 38.086 N 149° 1' 54.077 W 13,726.44 87.67 143.45 9,004.47 - 8,992.32 392.21 5,970,184.79 619,419.80 70° 19' 37.837 N 149° 1' 53.464 W I 13,759.22 88.37 149.30 9,005.60 - 9,019.59 410.35 5,970,157.81 619,438.36 70° 19' 37.569 N 149° 1' 52.935 W 13,791.27 88.06 153.81 9,006.60 - 9,047.75 425.60 5,970,129.90 619,454.06 70° 19' 37.292 N 149° 1' 52.490 W jI 13,819.34 87.64 148.99 9,007.65 - 9,072.37 439.03 5,970,105.50 619,467.87 70° 19' 37.050 N 149° 1' 52.098 W 13,852.85 88.28 144.10 9,008.85 - 9,100.30 457.48 5,970,077.87 619,486.76 70° 19' 36.775 N 149° 1' 51.559 W I 13,882.86 89.45 140.39 9,009.44 - 9,124.02 475.85 5,970,054.45 619,505.50 70° 19' 36.542 N 149° 1' 51.023 W 13,910.48 89.57 137.44 9,009.68 - 9,144.83 494.00 5,970,033.92 619,523.98 70° 19' 36.337 N 149° 1' 50.493 W j 13,940.23 88.80 132.20 9,010.10 - 9,165.79 515.09 5,970,013.30 619,545.40 70° 19' 36.131 N 149° 1' 49.878 W 13,969.30 88.44 128.13 9,010.80 - 9,184.53 537.29 5,969,994.92 619,567.90 70° 19' 35.947 N 149°1' 49.230 W 14,002.79 89.91 123.36 9,011.28 - 9,204.09 564.46 5,969,975.80 619,595.37 70° 19' 35.755 N 149° 1' 48.436 W j 14,030.12 91.38 119.20 9,010.98 - 9,218.28 587.81 5,969,961.98 619,618.94 70° 19' 35.615 N 149° 1' 47.755 W 14,060.26 92.61 115.57 9,009.93 - 9,232.13 614.56 5,969,948.56 619,645.90 70° 19' 35.479 N 149° 1' 46.974 W' 14,090.47 94.43 111.16 9,008.07 - 9,244.09 642.23 5,969,937.04 619,673.75 70° 19' 35.361 N 149° 1' 46.167 W 14,120.10 95.50 106.18 9,005.50 - 9,253.53 670.18 5,969,928.04 619,701.85 70° 19' 35.268 N 149° 1' 45.351 W 14,148.95 96.21 101.41 9,002.56 - 9,260.37 698.05 5,969,921.64 619,729.82 70° 19' 35.201 N 149° 1' 44.537 W 14,182.93 96.22 97.10 8,998.88 - 9,265.81 731.38 5,969,916.74 619,763.23 70° 19' 35.147 N 149° 1' 43.564 Wi 14,211.54 94.30 93.25 8,996.26 - 9,268.37 759.75 5,969,914.62 619,791.63 70° 19' 35.122 N 149° 1' 42.736 W ', 14,240.57 95.00 88.12 8,993.90 - 9,268.72 788.67 5,969,914.74 619,820.55 70° 19' 35.119 N 149° 1' 41.892 W' 14,272.34 95.16 82.92 8,991.09 - 9,266.25 820.21 5,969,917.71 619,852.04 70° 19' 35.143 N 149° 1' 40.971 W 14,309.32 96.48 78.15 8,987.33 - 9,260.20 856.48 5,969,924.33 619,888.22 70° 19' 35.202 N 149° 1' 39.912 W 14,340.61 94.86 74.13 8,984.24 - 9,252.74 886.71 5,969,932.26 619,918.32 70° 19' 35.276 N 149° 1' 39.030 W I 14,377.26 95.23 66.97 8,981.01 - 9,240.60 921.11 5,969,944.96 619,952.52 70° 19' 35.395 N 149° 1' 38.026 W ' 14,401.33 94.61 64.31 8,978.95 - 9,230.71 942.95 5,969,955.19 619,974.20 70° 19' 35.492 N 149° 1' 37.388 W 14,435.63 95.72 70.73 8,975.86 - 9,217.65 974.50 5,969,968.74 620,005.53 70° 19' 35.621 N 149° 1' 36.467 W I 14,469.10 94.85 76.99 8,972.77 - 9,208.39 1,006.50 5,969,978.51 620,037.38 70° 19' 35.712 N 149° 1' 35.533 W', 14,493.51 93.47 80.44 8,971.00 - 9,203.63 1,030.37 5,969,983.65 620,061.17 70° 19' 35.759 N 149° 1' 34.836 W 14,522.50 92.43 83.92 8,969.51 - 9,199.69 1,059.05 5,969,988.04 620,089.78 70° 19' 35.797 N 149° 1' 33.999 W I 14,550.89 90.89 89.83 8,968.69 - 9,198.14 1,087.37 5,969,990.04 620,118.07 70° 19' 35.812 N 149° 1' 33.172 W I 14,579.60 90.61 93.42 8,968.31 - 9,198.96 1,116.06 5,969,989.68 620,146.77 70° 19' 35.804 N 149° 1' 32.335 W 14,609.97 89.32 96.25 8,968.33 - 9,201.52 1,146.32 5,969,987.60 620,177.06 70° 19' 35.779 N 149° 1' 31.452 W' 14,640.69 88.65 100.58 8,968.87 - 9,206.01 1,176.69 5,969,983.59 620,207.50 70° 19' 35.735 N 149° 1' 30.565 WI I 14,670.70 89.91 105.89 8,969.25 - 9,212.88 1,205.89 5,969,977.19 620,236.80 70° 19' 35.667 N 149° 1' 29.713 W 1 14,700.49 89.82 110.62 8,969.32 - 9,222.21 1,234.18 5,969,968.31 620,265.23 70° 19' 35.576 N 149° 1' 28.887 W I 21222011 11.O313AV Page 3 CCAffeASS 230315 Ekdd 73 W.� 0 • ISMER Survey Report - Geographic 0 bp itNCEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 5 Project: Prudhoe Bay TVD Reference: S -18A @ 72.29ft (Doyon 14) Site: PB 5 Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Well: S - 18 North Reference: True Wellbore: S - 18B Survey Calculation Method: Minimum Curvature Design: S - 18B Database: EDM .16 - ANC Prod - WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (1 (ft) (ft) (ft) (ft) (ft) Latitude Longitude 14,728.70 90.74 115.41 8,969.18 - 9,233.23 1,260.13 5,969,957.70 620,291.36 70° 19' 35.467 N 149° 1' 28.129 W 14,758.72 90.83 117.65 8,968.77 - 9,246.64 1,286.99 5,969,944.72 620,318.42 70° 19' 35.335 N 149° 1' 27.346 W 14,788.85 89.94 114.47 8,968.57 - 9,259.88 1,314.05 5,969,931.92 620,345.68 70° 19' 35.205 N 149° 1' 26.556 W 14,826.60 86.50 110.28 8,969.74 - 9,274.23 1,348.93 5,969,918.11 620,380.78 70° 19' 35.064 N 149° 1' 25.538 W 14,856.43 87.70 106.56 8,971.25 - 9,283.65 1,377.19 5,969,909.15 620,409.19 70° 19' 34.971 N 149° 1' 24.713 W 14,888.73 87.24 102.21 8,972.68 - 9,291.66 1,408.44 5,969,901.63 620,440.56 70° 19' 34.892 N 149° 1' 23.801 W 14,918.60 84.90 100.12 8,974.72 - 9,297.43 1,437.67 5,969,896.33 620,469.87 70° 19' 34.835 N 149° 1' 22.947 W 14,945.91 82.61 98.78 8,977.70 - 9,301.89 1,464.45 5,969,892.30 620,496.71 70° 19' 34.792 N 149° 1' 22.166 W 14,975.34 79.65 97.02 8,982.23 - 9,305.89 1,493.24 5,969,888.76 620,525.57 70° 19' 34.752 N 149° 1' 21.325 W 15,005.17 76.66 93.90 8,988.36 - 9,308.67 1,522.30 5,969,886.44 620,554.66 70° 19' 34.725 N 149° 1' 20.477 W 15,033.63 73.75 91.35 8,995.62 - 9,309.93 1,549.78 5,969,885.61 620,582.16 70° 19' 34.712 N 149° 1' 19.675 W 15,059.24 72.66 87.97 9,003.03 - 9,309.79 1,574.29 5,969,886.14 620,606.66 70° 19' 34.714 N 149° 1' 18.959 W 15,096.45 70.22 82.95 9,014.88 - 9,307.01 1,609.44 5,969,889.48 620,641.76 70° 19' 34.741 N 149° 1' 17.933 W 15,122.08 68.42 78.71 9,023.93 - 9,303.19 1,633.11 5,969,893.67 620,665.36 70° 19' 34.778 N 149° 1' 17.243 W 15,155.71 66.46 76.00 9,036.83 - 9,296.40 1,663.41 5,969,900.94 620,695.55 70° 19' 34.845 N 149° 1' 16.358 W 15,183.00 66.46 76.00 9,047.73 - 9,290.35 1,687.68 5,969,907.38 620,719.72 70° 19' 34.905 N 149° 1' 15.649 W' TD Targets I Target Name - hit/miss target Dip Angle Dip Dir. TVD +N/ -S +E/ -W Northing Easting - Shape r) r) (ft) (ft) (ft) (ft) (ft) Latitude Longitude S -18B Polygon 0.00 0.00 72.29 - 8,506.93 198.08 5,970,667.00 619,218.00 70° 19' 42.611 N 149° 1' 59.131 W 1 - survey misses target center by 8878.90ft at 13210.19ft MD (8949.88 TVD, - 8534.43 N, 348.60 E) - Polygon Point 1 72.29 - 8,506.93 198.08 5,970,667.00 619,218.00 Point 2 72.29 - 8,579.42 416.98 5,970,598.00 619,438.00 Point 3 72.29 - 8,876.10 393.26 5,970,301.00 619,419.00 Point 4 72.29 - 9,035.19 522.77 5,970,144.00 619,551.00 Point 5 72.29 - 9,156.39 1,353.02 5,970,036.00 620,383.00 Point 6 72.29 - 9,146.45 1,735.26 5,970,052.00 620,765.00 Point 7 72.29 - 9,390.57 1,739.38 5,969,808.00 620,773.00 Point 8 72.29 - 9,371.89 1,003.53 5,969,815.00 620,037.00 Point 9 72.29 - 9,240.23 333.47 5,969,936.00 619,365.00 Point 10 72.29 - 8,977.34 154.61 5,970,196.00 619,182.00 ' Point 11 72.29 - 8,672.91 131.43 5,970,500.00 619,154.00 11,693.36 8,859.69 7" 7.000 8.500 - '1 11,563.49 8,777.00 TUBING 4.500 6.125 Survey Annotations ■ Measured Vertical Local Coordinates Depth Depth +N /-S +E/ -W (ft) (ft) (ft) (ft) Comment 13,150.75 8,952.03 - 8,485.67 382.47 TIP 13,166.00 8,951.11 - 8,498.51 374.29 KOP 15,183.00 9,047.73 - 9,290.35 1,687.68 TD Checked By: Approved By: Date: 212212011 1- :03 :13AM Page 4 COMPASS 2003.16 Build 73 IKtt= . 4 -1/1b" UIVV WELLHEAD = 13 -5/8" CM/ T S-18B F ROM G #1 NOT FOUND IN TBG OR CATCHER SUB ON ACTUATOR = AXLESON PJC D i �F 1 11/12/0 CIO. VALVE STILL SOM EWHERE IN WELL KB. ELEV. 75.29 (AS OF 1 4/05 ? ?) *** RESTRICTION @ 1198T CTM D * ** 1 BF. ELEV = 39 -89 K01 900' I 2093' 1-14-1/2" HES X NIP, ID = 3.813" I Max Angle = 101 ° @ 12261' GAS LIFT MANDRELS Datum MD = 11714' 20" CONDUCTOR I 110' D atum TVD = 8800' SS ST MD ND DEV TYPE VLV LATCH PORT DATI 6 3876 3224 46 MMG -M DOME RK 16 03/11/ 13 -3/8" CSG, 72 #, L -80, ID = 12.347" H 3055' I / 5 5702 4516 46 MMG -M SO RK 20 03/11 / 4 7199 5533 45 MMG -M DMY RK 0 03/20/ 3 8528 6530 37 MMG -M DMY RK 0 03/20/ 2 9813 7527 38 MMG -M DMY RK 0 03/20/ TOP OF 7" LNR H 10764' 1---- 1 11184 8523 47 KBG2 -9 DMY BK _ 0 03/20/ 9 -5/8" CSG, 47 #, L -80 BUTT, ID = 8.681" I—I -10960 10764' 1-17" X 9 -518" BKR ZXP LTP, ID = 7.500" I 'WHIPSTOCK (08/21/02) H 10960' 10780' H 7" X 9 -5/8" BKR HMC HGR, ID = 6.280" I MILLOUT WINDOW (5- 18A)10936' - 10952' Minimum ID = 1.78" @ 11798' 11463' H 4 -1/2" HES X NIP, ID = 3.813" I DEPLOY SLV w/ PLUG HOLDER BUSHING c. 11484' J-J 7" X 4 -1/2" BKR S -3 PKR, ID = 3.875" I 11508' I-1 4 -1/2" HES X NIP, ID = 3.813" I 11529' (-1 4 -1/2" HES X NIP, ID = 3.813" I TOP OF 4-1/2" LNR H 11540' 11540' . 1-17" X 5" BKR ZXP LTP w / HMC HGR, ID = 4.400" 4 -1/2" TBG, 12.6 #, 13CR -80 VAM TOP, -1 11544' 1 I 11544' I-{ 4 -1/2" WLEG, ID = 3.958"I 0152 bpf, ID = 3.958" \ 11565' H5" X 4 -1/2" XO, ID = 3.958" 17" LNR, 26 #, L -80 BTC, .0383 bpf, ID = 6.276" IH 11705' I.-_/ 1 1 ■ I 1 11785' -14-1/2" KB LNR TOP PKR, ID = 2.375" I I 11792' H3.70" BTT DEPLOY SLV, ID = 3.00" I 1 = 11798' I 3.70" BTT DEPLOY SLEEVE w / PLUG HOLDER BUSHING, ID = 1.78" WHIPSTOCK (02/08/11) H 13161' 11987' H RESTRICTION (04/04/10) I 1/2" LNR, 12.6 #, L -80 M -BTC, .0152 bpf, ID = 3.958" H -13172 PERFORATION SUMMARY ( 12677' H4 -1/2" MARKER JT I REF LOG: LEE GR/ CCL ON 02/22/11 I ANGLE AT TOP PERF: 48° @ 11425' Note: Refer to Production DB for historical perf data SIZE 1 SPF 1 INTERVAL ( Opn /Sqz 1 DATE MILLOUT WINDOW (S -18B) 13162' - 13172' S -18A 4 -1/2" SLTD 12003 - 12519 SLOT 08/27/02 4 -1/2" SLTD 12697 - 13046 SLOT 08/27/02 1 S -18B 1.56" f 6 11425 - 11950 0 02/24/11 1 1.56" r 6 15030 - 15140 0 02/24/11 ,...4 I PBTD I—I 15141' 2 -3/8" LNR, 4.6 #, 13CR STL, .0039 bpf, ID = 1.995" H 15179' I tt■ DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 08/16/85 AUDI 2 ORIGINAL COMPLETION WELL: S -18B 09/03/02 D14 SIDETRACK (S -18A) PERMIT No: x 2100210 02/28/11 NORDIC 1 CTD SIDETRACK (S -188) API No: 50- 029 - 21156 -02 03/08/11 PJC DRLG DRAFT CORRECTIONS SEC 35, T12N, R12E, 2314' FNL & 711' FWL 03/11/11 GRC /PJC BF ELEVATION CORRECTION 03/28/11 JCM/PJC GLV C/O (3/11/11) BP Exploration (Alaska) ,,,, • Page 1of1 Regg, James B (DOA) PirD 2_10 ° o z( From: Sarber, Greg J [SarberJG @BP.com] Sent: Friday, February 11, 2011 12:58 PM z To: DOA AOGCC Prudhoe Bay Cc: Smart, John C; Kavanagh, Tom; McMullen, John C; Rossberg, R Steven; Shepard, Samantha F; Engel, Harry R; Daniel, Ryan; Kilfoyle, Jeffery A; Rymut, Cody D; Schultz, Mikel Subject: Report of BOPE usage on Nordic 2, 2 -11 -2011, 17:22 hrs. Attachments: BOPE Use Reporting S- 18B.ZIP All, Attached you will find a summary of a use of BOPE to prevent flow from the well on well S -18B. This is a well that is currently being drilled by the Nordic 2 CTD rig. The summary provides full details of the event. There was a minor pit gain with no formation fluids recovered to surface. The event was catagorized as a well bore breathing event. Please contact me for further information. Sincerely, Greg Greg Sarber Operations Superintendent RWO /CTD +1 (907) 659 -5329 (Office - slope) +1 (907) 242 -8000 (Cell Phone) Harmony 2157 Alternate: Jim Willingham 3/2/2011 • Blow Out Preventer Equipment ( BOPE ) Usage Report to the AOGCC The purpose of this document is to ensure timely reporting to the AOGCC of any BOPE use to prevent the flow of fluids from a well. Field Superintendent Name: Greg Sarber Wellsite Leader Name: Tom Kavanagh Contact Number: 907 - 659 -5329 Contact Number: 907 - 659 -4394 Traction Number: 3766845 Well Location /Name & Rig Name: S -18B / Nordic 2 Permit To Drill (PTD) Number: 2100210 ' Date and Time of Incident: Feb 10, 2011 17:22 Original Scope of Work: Coiled Tubing Drilled Sidetrack of existing parent well S - 18A Operational Description Leading up to Well Control Event: The rig had moved on the well and milled a window in the parent well. During window milling operations there were static losses to the formation in excess of 50 bbl /hour. The window was completed and the first drilling BHA RIH to TD. Drilling of new formation was initiated and after a short distance, the mud motor stalled. The rig Pump was shut down and the CT picked up off bottom. Almost concurrently the Nordic driller saw a 2 bbl pit gain, and notified the BP WSL. The mud Pump was left off and the CT movement was stopped, Nordic driller and BP WSL observed a small trickle of drilling mud from the well. BOPE Used and Reason: This is a CTD drilling rig, where the return flow path is normally from the choke line on the BOP stack thru a drilling bypass Line around the choke. When a pit gain was identified, the HCR was shut in. The CT pack off was used to contain flow from the well, no other BOPE was functioned closed and well head pressures were recorded. There was 0 psi. pressure on the well after 10 min. The HCR was opened up for a flow check, and no flow was observed from the well during a short flow test. Is a BOPE Test Required after use ( Yes / No): If no, why? Yes, HCR was tested after the BHA was pulled, Feb 11 at 04:00. 24 hour notice required to NS AOGCC Inspectors prior to testing BOPE components. Plan Forward: After the first short flow test, the coiled tubing needed to be circulated to prevent freezing. Circulation was established for 5 bbls to warm the coiled tubing. Another 15 minute flow check was performed which showed no flow. The rig team again Established circulation and circulated bottoms up. After 90 minutes from the initial 2 bbl pit gain, and a bottoms up circulation, there was no additional flow from the well bore, or signs of formation fluid at surface. The North Slope AOGCC Inspector was notified and after reporting the incident, normal operations were resumed. Additional Comments: The rig had been drilling with losses prior to this event. No reservoir fluids were recovered after this 2 bbl pit gain. The Rig team attributed the pit gain to a well bore breathing event. Email to AOGCC North Slope Inspectors within 24 hours of the incident: doa .aogcc.prudhoe.bayalaska.gov Email CC List BP WSL Harry Engel Wells Team Leader Jeff Kilfoyle Engineering Team Leader Operations Drilling Engineer- Well File Wells Operations Manager Drilling & Completions Engineer Manager Wells Intervention Manager Change to S -18B completion strawy Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) ( ) Sent: Thursday, October 07, 2010 2:38 PM To: 'Hoffman, Wilmer' Subject: RE: Change to S -18B completion strategy (PTD 210 -021) Wilmer, The changes you have proposed below are acceptable. The slight downsizing of the bit size and casing diameter will be noted in the drilling file as well as the cementing details. The wellpath appears to be unchanged. Guy Schwartz Senior Petroleum Engineer AOGCC 793 -1226 (office) 444 -3433 (cell) From: Hoffman, Wilmer [mailto:hoffmawj @bp.com] Sent: Thursday, October 07, 2010 2:24 PM To: Schwartz, Guy L (DOA) Subject: Change to S -18B completion strategy Guy, As we discussed over the phone, S -18B's completion strategy has changed from how it was described in our initial permit to drill application (permit #210 -021). S -18B has an obstruction in the well at 11,997'. It is a tight spot over an approximate 6" section where the 4 -1/2" liner is ovalled /egg - shaped. We were able to successfully pass a 3.48" nozzle and a 3.40" dummy milling BHA drift through this area with service coil. The well will now be drilled with either a 3.125" x 3.625" bi- center (Hughes bit) or 3.188" x 3.375" bi- center (Hycalog bit). The planned kick off point is 13,180'. The well will be completed with solid, 2 -3/8 ", 4.7 # /ft, 13Cr liner. The planned liner top will be 11,810'. TD is expected at 15,190'. The plan is to pump 48 bbls of 15.8 ppg liner cement calculating in 20% excess in the open hole section. Something to note is that the original liner is a mix of solid and slotted liner. The slotted liner intervals above the window are (13,046- 12,697' and 12,519' - 12,003'). I calculated the slotted liner area for volume by utilizing 2 -3/8" liner inside of 6 -1/8" open hole and backing out the 4 -1/2" liner displacement. If you need more information or want to discuss anything, please let me know. I am attaching an updated schematic showing the new completion strategy for your records. Regards, «S- 18B(1).jpg» Operations Drilling Engineer Coiled Tubing Drilling - BPXA Direct 907.564.4592 Cell 907.250.2601 BOOMER SOONER! 10/7/2010 TREE= 4- 1/16" CIW SAFETY NOTES: VALVE WELLHEAD = 13- 5/8 "CMN S-18B TBGORCAT HER SUB ON O. FOUND LVIEN ACTUATOR = AXLESON STILL SOMEWHERE IN WELL (AS OF 12/14106 ? ?' KB. aEV = 72.29' Proposed CTD Sidetrack BF. aEV = 32.40' KOP= 10936' Max Angle = 01 © 12259' Datum MD= 11714' 1 1 I 2093' 1-[4-1/2" HES X NIP, ID = 3.813" Datum TVD = 8800' SS GAS LIFT MANDRELS 13 -3/8" CSG, 72 #, L -80, ID= 12.347" --I 3055' I--A ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3876 3224 46 MMG -M DOME RK 16 09/22/07 5 5702 4516 46 MMG -M DMY RK 0 02/28/03 4 7199 5533 45 MMG -M DOME RK 16 09/22/07 Minimum ID = 1.78" 11810' 3 8528 6530 37 MMG -M DOME RK 16 09/22/07 2 9813 7527 38 MMG -M DOME RK 16 09/22/07 TOL 3-1/.1 1 11184 8523 47 KBG2 -9 SO BK 24 09/22/07 I TOP OF 7" LNR H 10764' I 10764' 1 X 9 -5/8" BKR ZXP LTP, ID = 7.500" 1 10780' H7" X 9 -5/8" BKR HMC HGR, ID = 6.280" PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: 74° (21i) 12003' MILLOUT WINDOW (S- 16A)10936' - 10952' • Note: Refer to Production DB for historical pert data SIZE I SPF INTERVAL Opn /Sqz DATE 7 SLID LNR 12003 - 12519 0 09/03/02 / L °" SLTD LNR 12697 - 13046 0 09/03/02 ,: 1( ; COI�11 /G(1 N- SLTD LNR 13965 - 15905 O 09/03/02 11463' H 4-1/2" HES X NIP, ID = 3.813" I • a.t,.) L 1 7V f'- 11484' H 7" X 4 -1/2" BKR S -3 PKR, ID = 3.875" f / � I 11508' H 4 -1/2" HES X NIP, ID = 3.813" I /0. - r I I� I 11529' H 4 -1 /2" HES X NIP, I0 = 3.813" I 9 -5/8" CSG, 47 #, L -80, ID = 8.681" 11650' Nik 11 44 4- /2" WLEG, ID = 3.958" I X 5" BKR ZXP LTP 4 -1/2" 12.6#, 13CR -80, VAM , i I w/ HMC HGR ID = 4.400" TOP, 0.0152bpf, ID = 3.958" 11544 �' b= 5 g 11800' 1 BKR KB LTP ID = 2 379" 4 d ip -- - I 11810' I — Top of Deploymer'' N. SLV ID =1.78" 1 y Iz -- 3. �zs B .1. 4 _ � ',1 TSGR 11686' \ 7" LNR, 26#, L -80 BTC, H 11705' I' v .0383 bpf, ID= 6.276" 93 0 I 3 -1/2" x 4 -1/2" TT Whipstock H 13180' \ • ■ \ ■ t I Y'r Liner, Cemented & Perf'd I-1 4 -1/2" SLTD LNR, 12.6#, L -80, — 15907' I .0152 bpf, ID = 3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 08/16/85 ORIGINAL COM PLETION 09/30/07 CJN/PJC GLV C/O (09 /22/07) WELL: S -18 09/03/02 DAV /KK RIG SIDETRACK 11/09/09 MSE PROPOSED CTD SIDETRACK PERMIT No 12/10/04 RDJ/TLH WAIVER SAFETY NOTE API No: 50- 029 - 21156 -0 11/11/05 BMcN/PJC FISH (GLV w /8K LATCH) SEC 35, T12N, 12E, 2314' SNL & 711' EWL 11/18/05 EZL /PJC WAIVER SFTY NOTE DELETED 12/13/05 JPK/TLH GLV CORRECTION (11/12/04) BP Exploration (Alaska) • 110 F\ / H v SEAN PARNELL, GOVERNOR ALASKA 0I14 AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMrIISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 f FAX (907) 276 -7542 Mr. John McMullen Engineering Team Leader BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU S -18B BP Exploration (Alaska) Inc. Permit No: 210 -021 Surface Location: 2314' FNL, 711' FWL, SEC. 35, T12N, R12E, UM Bottomhole Location: 1010' FNL, 2396' FWL, SEC. 11, T11N, R12E, UM Dear Mr. McMullen: Enclosed is the approved application for permit to re -drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval 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. Sincerely, 4 Daniel T. Seamount, Jr. Chair r DATED this 4--d day of February, 2010. cc: Department of Fish & Game, Habitat Section w/o encl. (via e -mail) Department of Environmental Conservation w/o encl. (via e -mail) STATE OF ALASKA RECEIVED '1-`' ALAS IL AND GAS CONSERVATION COMMI N 0.2-A4-/0 PERMIT TO DRILL FEB 1 1 2010 20 AAC 25.005 Alaska Oil & G a eHa f i 1 a. Type of work: 1 b. Proposed Well Class: _i Development Oil ❑ Service - Winj ❑ Single Zone 1 c. Spe is p rr ❑ Drill ® Redrill ❑ Stratigraphic Test ❑ Development Gas ❑ Service - Supply ❑ Multiple Zone ❑ Coal r4 3as Hydrates ❑ Re -Entry ❑ Exploratory ❑ Service - WAG ❑ Service - Disp ❑ Shale Gas 2. Operator Name: 5. Bond: IN Blanket ❑ Single Well 11. Well Name and Number: BP Exploration (Alaska) Inc. Bond No. 6194193 PBU S -18B 3. Address: 6. Proposed Depth: 12. Field / Pool(s): P.O. Box 196612, Anchorage, Alaska 99519 - 6612 MD 15190' TVD 8972'ss Prudhoe Bay Field / Prudhoe 4a. Location of Well (Govemmental Section): 7. Property Designation (Lease Number)f Bay Oil Pool Surface: ADL 028257, 028260 &428 2314' FNL, 711' FWL, SEC. 35, T12N, R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 4351' FNL, 1325' FWL, SEC. 02, T11N, R12E, UM April 10, 2010 Total Depth: 9. Acres in Property: 14. Distance to Nearest Property: 1010' FNL, 2396' FWL, SEC. 11, T11N, R12E, UM 2560 14,955' 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 72.29' feet 15. Distance to Nearest Well Open Surface: x - 618885 y 5979169 Zone ASP4 GL Elevation above MSL: 38.49' feet to Same Pool: 1730' 16. Deviated Wells: Kickoff Depth: 13200 feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 96 degrees Downhole: 3429 Surface: 2549 18. Casing Program: Specifications Top - Setting Depth - Bottom Quantity of Cement, c.f. or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 4 - 1/4" 3 - 1/2" x 2 - 7/8" 9.2# / 6.4# 13Cr STL 3380' 11810' 8856'ss 15190' 8972'ss 253 cu ft Class 'G' 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re -entry Operations) Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effective Depth MD (ft): Effective Depth TVD (ft): Junk (measured): 15937' 9033' None 15937' 9033' Yes, Unknown Depth Casing Length Size Cement Volume MD TVD Conductor / Structural 110' 20" x 30" 8 cu vds Concrete 110' 110' Surface 3055' 13 -3/8" 4265 cu ft Permafrost 3055' 2686' Intermediate 10936' 9 - 5/8" 2196 cu ft Class 'G'. 230 cu ft Class 'G' 10936' 8353' Production Liner 941' 7" 236 cu ft Class 'G' 10764' - 11705' 8232' - 8867' Liner 4367' 4-1/2" Uncemented Slotted Liner 11540' - 15907' 8762' - 9034' • Perforation Depth MD (ft): Slotted Section: 12003' - 15905' Perforation Depth TVD (ft): 9007' - 9034' 20. Attachments: ❑ Property Plat ® BOP Sketch ® Drilling Program ❑ Time vs Depth Plot ❑ Shallow Hazard Analysis ❑ Diverter Sketch ❑ Seabed Report ® Drilling Fluid Program ® 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Contact Cody Hinchman, 564 -4468 - Printed Name John ;,_,, e , , Title Engineering Team Leader ' Prepared By Name/Number Signature / Phone 564 -4711 D ate 21(///6 Terrie Hubble, 564 -4628 Commission Use Only Permit To Dill API Number: Permit al e: See cover letter for Number:„,?/0 e, 50- 029 - 21156 -02 -00 10 other requirements Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed met ne, gas hydrates, or gas contained shales: / Er . Other: 356° / 3 ` & 1- 7; Samples Req'd: 0 No Mud Log Req'd: ❑ Yes tl0 No At 4$00 pS c, /A K I c S +- H Measures: es ❑ No Directional Survey Req'd: I'Yes ❑ No Iw.2. APPROVED BY THE COMMISSION Z /Z3 Date / COMMISSIONER Form 10-401 Revised 7/2009 This permit is valid for 24 months from the date of approval (20 MC 25.005f91) Submit In Duplicate O RIGINAL Wiz. /s,./a • S -18B - Coiled Tubing Deng To: Alaska Oil & Gas Conservation Commission From: Cody Hinchman by CTD Engineer 0 Date: February 9, 2010 Re: S -18B Application for Permit to Drill Request CTD Drill and Complete S - 18B : Scheduled to start April 10, 2010 Pre -CTD Drilling Operations to start March 1, 2010 1. 0 MIT -OA: Pass (2000 psi) on 11/24/09 2. 0 MIT -IA: Pass (3000psi) on 11/26/09. 3. W AC -LDS; PPPOT -T: Passed to 5000 psi on 11/28/09. 4. S Dummy all GLV's 5. C Push fish to bottom. Fish is a 1" GLV w/ BK Latch. 6. C Dummy WS drift for Baker 4 -1/2" monobore WS Packer to 13,300'. 7. 0 PT tree (MV,SV,WV). 8. W Set BPV 9. 0 Bleed gas lift and production flowlines down to zero and blind flange 10.0 Remove S- Riser, Remove well house, level pad. e Rig Sidetrack Operations (Nordic 2): (Scheduled to begin on April 10, 2010) 3fd�, 1. NU 7- 1/16" CT Drilling BOPE and test to 250 psi low and 3500 psi high A 2. Pull BPV fl Sat 4 -19" mnnnhnre WS packer lowside with TOW at 13.180'. 4. Mill 3.80" window at 13,180' MD. 5. Drill build /turn section with 4 -1/4" bi- center bit, and land well. v 6. Drill lateral section to 15,190' MD. 7. Run 3 -1/2" X 2 -7/8" solid 13Cr liner to TD. Place liner top at 11,810' MD. • .- i 8. Cement liner from TD to TOL with 45 bbls of 15.8 ppg cement. ° 9. Cleanout and MCNL. T® 10. Test liner lap to 2000 psi. • 11. Perforate -1200'. 12. Set KB Liner Top Packer if needed. • 13. Freeze protect well to ± 2200'. 14. Set BPV. ND 7- 1/16" stack. FP tree and PT tree cap to 3500 psi. 15. RDMO Nordic 2. Post -Rig Work: 1. Re- install wellhouse and FL's. 2. Pull BPV. 3. Run live gas lift design 4. RU test separator, flow test well. Mud Program: • Well kill: 8.6 ppg brine • Milling /drilling: Used /Reconditioned Geo -Vis or 8.6 ppg biozan for milling. Geo -Vis for drilling. • S -18B — Coiled Tubing Deg Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. • All Class I wastes will go to Pad 3 for disposal. Hole size: 4 -1/4" Casing Program: • 3 -1/2 ", 9.2 #, 13Cr, STL connection solid liner — 11,810'MD — 13,100' MD. • 2 -7/8 ", 6.4 #, 13Cr, STL connection solid liner — 13,100' MD — 15,190' MD. • A minimum of 45 bbls, 15.8 ppg cement will be used for liner cementing. (TOC 11,810'MD) Well Control: • BOP diagrams are attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3500 psi. • The annular preventer will be tested to 250 psi and 2500 psi. ✓ Directional • See attached directional plan. Maximum planned hole angle is 95.6° deg at 14,141' MD. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest well within the pool — 1730" (M -05A) • Distance to nearest property line — 14,955' (TSGR) ,/ Anticollision Summary • M -05A — 1,683' ctr -ctr, Status: SI Producer Logging • MWD directional, Resistivity, and Gamma Ray will be run over all of the open hole section. • A cased hole GR/CCL/CNL log will be run. • CBL may be run pending severity of any LC events. Hazards • The maximum recorded H2S level on S Pad is 500 ppm on S -201 (6/2/2005). S Pad is considered an H2S pad. S -18A last H2S reading was 15 ppm on 2/21/08. • Lost circulation risks are considered low - medium. No planned fault crossings. Reservoir Pressure • Res. press. is estimated to be 34 9�.,psi at 8,800'ss (7.49 ppg EMW). • Maximum surface pressure with gas (0.10 psi /ft) to surface is 2549 psi. Cody Hinchman -CTD Engineer 564 -4468 • S -18B — Coiled Tubing Dg TREE= 4-1/16" CAN WELLHEAD = 13 -543" (AN SAFETY NOTES: VALVE FR= in NOT FOUND M ACTUATOR = AXLESON 8A TNG OR CATCHER MM GO THINK GLV CA. VALVE _ K8. ELEV = 72.29' STILL SOME UENE IN WELL CAS OF 1NI4i05 ") BF. ELEV = 32.40' KOP = 10936' • Max Angle = 01 ( 12259' Datum MD = 11714' 1 1 I 2097 I - 1412" HES X MP. ID = 3.813" I Datum TVD = 8800' SS GAS LIFT MANDRELS 113.3/8" CSG,720, L - 80. ID= 12.347" H 3055' ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3876 3224 46 MMO-M DOME RK 16 09122437 5 5702 4516 46 MMO-M DMY RK 0 02/28/03 4 7199 5533 45 MMG -M DOh€ RK 16 09/22107 1Minim um ID = 3.013" 2093' 3 8528 6530 37 MMG -M DOME RK 16 0922/07 2 9813 7527 38 MMG-M DOME RK 16 09122 /07 4 -112" HES X NIPPLE 1 11184 8523 47 K002 -9 SO BK 24 09122 /07 TOP OF T' MR H 10784' I I 10784' Hr X 9.5/8" BKR ZXP LIP. I) = 7.500" I 1078 1 0' HT' X 9-518" BKR HMC HGR, = 6280" MMLLOUT WMVDOW (5 - 10952' I 11463' H 4. in- HES X NIP. ID= 3.813"I 11484' I 7" X4-1/2" OCR S -3 PKR, ID = 3.875" I � 11508' H 412" HES X NIP. ID = 3.813" 1 IBKR CIBP H 10950' I - -- 1 9.5/8" CSG, 4713, L -80, ID = 8.681" H 11850' l ;� 11529' 412" HES X NIP, ID = 3813• I f'i •'11's'i •'OPT N►FI/1►IN 0'� Odoms% 11544' H 412" WLEG. ID = 3.958" I 4. /I /M I. *1,4:i • 1► 1 11540' I 7"x5" BKR ZXP LTP w/ HMC HGR, ID = 4.400" • 11566 I- 5" x 4-12" x0, ID = 3.958" r r ...., ...,.. r 777 1FISH -1" GLV w115( 17" LNR, 260. L-80, .0383 bpf, ID = 8276" H 12140' r LATCH (11111/2005) 4-1 /2" LNR,1261M, 11544' PERFORATION SUMMARY 13CR -80 VAMTOP, 12877' MARKER JT REF LOG: .0152 bpf, ID =3.958" r r ANGLE AT TOP PERF: 74' c 12003' r r Not Refer to Products DB for historical pert data 7" LNR, 260, L-80 BTC, —I 11705' 1 rr r SIZE 1 SPF INTERVAL Opn/Sgx DATE .0383 bpi, ID = 6.276" r 13345' MARKER JT • SLTD LM 12003 -1 2519 0 09433402 \ r r SLTD LPR 12697 -13046 0 09/03/02 r + . � . , SLTD LNR 13965 -15905 0 09/03432 • • ►// + +1i /'. 4-1 2" SLTD LNR,12.61C, L-80, -i 15907' 4 0 • • .0152bp1,ID =3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT INtliA7i OMGMBL COMPLETNIN 09/30/07 CJNrPJC OLV C/0 (09122 /07) WELL: S-18A AV03102 °AVM MG SIDETRACK PERMIT No: "2021630 12/10/04 RDJ/fLH WAIVER SAFETY NOTE API No: 50- 029 - 21156 -01 11/11/05 EMcNIPJC FISH (OLV w1BK LATCH) SEC 35, T12N,12E, 2314' SPL & 711' E M- 11/18435 EZUPJC WAIVER SFTY NOTE DELETED 12(13435 JPK/fLH OLV CORRECTION (11f1 2/04) BP Exploration (Alaska) • S -18B — Coiled Tubing D•ng TREE = 4 -1116" CIW SAFETY NOTES: VALVE FROM GLM NI NOT WELLHEAD = 13 -518" ON -1 8 B TOG R CATCHER SUB ON 11 2/04 GLV C/O.F IN ACTUATOR = AXLESON STILL SOMEWHERE IN WELL AS OF 12/14/05'!7) KB. ELEV = 72.29' PrOpOe'r r."-r1 c;'+P +rack BF. ELEV = 32.40' KOP = 10936' Max Angle = 01 @ 12259' Datum MD = 11714' 2093 I— 412" HES X NIP, D = 3.813" 1 Datum TVD = 8800' SS GAS LIFT MANDRELS 1 13 -3/8" CSG.72 #, L -80, ID= 12.347 1 3055' ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3876 3224 46 MMG -M DOME RK 16 09/22437 5 5702 4516 46 MMG -M DMY RK 0 02/28/03 4 7199 5533 45 MMG -M DOME RK 16 09/22407 Minimum ID = 2.3" 1181© 3 8528 6530 37 MMG -M DOME RK 16 09/22407 2 9813 7527 38 MMG -M DOME RK 16 09/22407 TOL 3 -112" 1 11184 8523 47 KBG2 -9 SO BK 24 0922407 TOP OF 7" LNR H 10764' I 10764' — 7 " X 8-5+8" BKR ZXP LTP, ID = 7.500" 10780' 1 X 9 -58" BKR HMC HGR, ID = 6280" PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: 74° @ 12003' MILLOUTVNNDCW (5 - 10936' - 10952' Note: Refer to Production DB for historical pert data SIZE I SPF INTERVAL Opn45gz DATE SLTD LPR 12003 - 12519 0 09/03/02 SLTD LI'13 12697 - 13046 0 09 /03 /02 SLID LNR 13965 - 15905 0 09 /03 /02 1 11463' — 412" HESX NIP, ID= 3.813 "I IIIIII 11480 H 7" X 412" BKR S -3 PKR, ID = 3.875" I , 11508' — 4-1/2" HESXNIP. ID= 3.813" t ti 11529' — 41/2" HES X NIP, ID = 3813" 9.58" CSG, 47 #, L -80, ID = 8.681" H 11650' I--A ��'�A�,����,5 N, 0• i MW • � H 1 I � I f1 1 0 N 11 tH % 11544' 1 — 41/2" WLEG, ID= 3.958" ■••••••••••• t y e 1 11540' I- 7" X 5" EKR ZXP LTP 4-1/2" , 12.6 #, 13CR -80, VAM — -- w /HMC HGR, ID = 4.400" TOP, 0.0152bpf, ID = 3.958" 11544 lB ` � � ' � ' r 1 11800 I�4 i EKR KB LTP ID = ♦i 1 11810' I-I TOL 3-12" ID = 2.30" nag TSGR 11686' ♦ N 13700' 1 - 13 - 12 " x2- 7ra " cross over 7" LNR, 26 #, L80 BTC, —1 11705' I ` y .0383 bpf, ID = 6.276" 93 0 N re PKnWS H 13180' ` ' .�: V 2" 13Cr x 2 -78" 13Cr Liner, , - mented & Pert'd H 15190' 1 4-1/2" SLTD LNR,12.6 #, L -80, H 15907' .0152 bpf, ID = 3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01Ir1GII5 ORIGINAL COMPLETION 09130 /07 CJN4PJC GLV C10 (09/22 /07) WELL: S -18 09/0]+02 DAVIIOC RUG SIDETRACK 11409/09 MSE PROPOSED CTD SIDETRACK PERMIT No: 12110 /04 RDJ/TLH WAIVER SAFETY NOTE API No: 50-029-21156-0 11/11/05 BMcNIPJC FISH (GLV w/BK LATCH) SEC 35, T12N,12E, 2314' SNL 8 711' EWL 11/18/05 EZL/PJC WAIVER SFTY NOTE DELETED 12/13/05 JPK/TLH GLV CORRECTION (11/12434) _ BP Exploration (Alaska) S -18B — Coiled Tubing Deng All Measurements are from top of Riser 3/30/2009 - 1 0) top of bag BAG 7 1/16" 5000 psi. bttm of bag middle of Slaps Blind /Shears TOTs 12 3/8" combi ram /sli middle of pipes 7 1 /16" 5000psi 1 1 Mud Cross Mud Cross middle of flow cross 7 1/16" 5000psi 1 1 middle of blind/shears variable bore pipe 3 112 " -2 3/8" TOTs middle of pipe /slips 2 3/8" combi ram /slips 7 1/16" 5000psi 1 � Swab Valve 1 1 Flow Tee by Baker Hughes INTEQ BAKER EMI ' 0 Baker Hughes INTEQ Planning Report NYBNU INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S -18 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB S Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Well: S -18 North Reference: True Wellbore: Plan 6, S -18B Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16.1 Single User Db Survey Tool Program Date 1/5/2010 From To (ft) (ft) Survey (Wellbore) Tool Name Description 107.60 10,923.74 1 : Schlumberger GCT multishot (S -18) GCT -MS Schlumberger GCT multishot 10,937.40 13,150.75 S -18A IIFR (S -18A) MWD +IFR +MS MWD + IFR + Multi Station 13,150.75 15,189.85 Plan 6 (Plan 6, S -18B) BLIND Blind drilling Planned Survey MD Inc Azi TVDSS N/S EIW Northing Easting DLeg V. Sec TFace (ft) (°) ( °) (ft) (ft) (ft) (ft) (ft) ( °I100ft) (ft) ( °) 13,150.75 93.51 211.75 8,879.74 - 8,485.67 382.47 5,970,691.17 619,402.02 0.00 1,850.18 0.00 TIP 13,180.00 93.23 214.64 8,878.02 - 8,510.11 366.49 5,970,666.49 619,386.43 9.91 1,838.69 95.46 KOP 13,200.00 91.43 214.64 8,877.20 - 8,526.55 355.13 5,970,649.88 619,375.33 9.00 1,830.35 180.00 End of 9 Deg/100' DLS 13,241.00 85.28 214.64 8,878.38 - 8,560.25 331.85 5,970,615.81 619,352.59 15.00 1,813.28 - 180.00 4 13,271.00 81.39 212.37 8,881.86 - 8,585.09 315.40 5,970,590.72 619,336.54 15.00 1,801.39 - 150.00 5 13,300.00 79.23 208.53 8,886.75 - 8,609.72 300.91 5,970,565.86 619,322.45 15.00 1,791.41 -120.0 13,301.00 79.16 208.40 8,886.93 - 8,610.59 300.45 5,970,564.99 619,321.99 15.00 1,791.09 - 119.35 6 13,331.00 79.19 203.82 8,892.57 - 8,637.04 287.48 5,970,538.33 619,309.45 15.00 1,782.92 -90.00 7 13,400.00 80.62 193.40 8,904.69 - 8,701.33 265.85 5,970,473.72 619,288.84 15.00 1,772.78 -83.00 13,500.00 83.21 178.48 8,918.83 - 8,799.51 255.67 5,970,375.39 619,280.22 15.00 1,779.80 -81.17 13,600.00 86.25 163.73 8,928.06 - 8,897.60 271.06 5,970,277.57 619,297.16 15.00 1,811.99 -79.06 13,631.00 87.25 159.18 8,929.82 - 8,926.93 280.90 5,970,248.40 619,307.47 15.00 1,826.78 -77.70 8 13,700.00 87.66 148.83 8,932.89 - 8,988.80 311.07 5,970,187.02 619,338.62 15.00 1,867.24 -88.00 13,800.00 88.37 133.83 8,936.38 - 9,066.60 373.34 5,970,110.22 619,402.11 15.00 1,942.07 -87.54 j 1/6/2010 8:36:40AM Page 3 COMPASS 2003.16 Build 71 • by Baker Hughes INTEQ NUCOR ' 0 Baker Hughes INTEQ Planning Report N CO Rif INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S -18 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB S Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Well: S -18 North Reference: True Wellbore: Plan 6, S -18B Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16.1 Single User Db Planned Survey MD Inc Azi TVDSS NIS EIW Northing Easting DLeg V. Sec TFace (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) (° /100ft) (ft) ( °) 13,900.00 89.20 118.85 8,938.50 - 9,125.68 453.65 5,970,052.43 619,483.33 15.00 2,031.41 -87.02 13,990.82 90.00 105.25 8,939.14 - 9,159.70 537.62 5,970,019.75 619,567.83 15.00 2,120.02 -86.7 End of 15 Deg /100' DLS . 14,000.00 90.35 104.21 8,939.11 - 9,162.04 546.50 5,970,017.56 619,576.74 12.00 2,129.17 -71.50 14,100.00 94.12 92.81 8,935.20 - 9,176.80 645.14 5,970,004.36 619,675.60 12.00 2,228.87 -71.50 14,140.82 95.63 88.13 8,931.73 - 9,177.14 685.80 5,970,004.67 619,716.25 12.00 2,268.98 -71.95 10 14,200.00 95.58 95.26 8,925.94 - 9,178.88 744.63 5,970,003.86 619,775.10 12.00 2,327.21 90.00 14,300.00 95.32 107.31 8,916.41 - 9,198.33 842.07 5,969,985.96 619,872.83 12.00 2,426.55 90.70 14,360.82 95.04 114.64 8,910.91 - 9,220.00 898.59 5,969,965.19 619,929.68 12.00 2,485.97 91.85 11 14,400.00 95.02 109.92 8,907.47 - 9,234.79 934.69 5,969,950.98 619,966.01 12.00 2,524.10 -90.00 14,500.00 94.83 97.88 8,898.86 - 9,258.67 1,031.23 5,969,928.63 620,062.90 12.00 2,623.31 -90.41 14,600.00 94.42 85.84 8,890.77 - 9,261.90 1,130.66 5,969,926.99 620,162.37 12.00 2,721.80 -91.45 14,610.82 94.36 84.54 8,889.94 - 9,260.99 1,141.42 5,969,928.06 620,173.11 12.00 2,732.23 -92.42 12 14,700.00 90.48 94.52 8,886.17 - 9,260.28 1,230.38 5,969,930.19 620,262.04 12.00 2,819.72 111.0 14,710.82 90.01 95.73 8,886.12 - 9,261.24 1,241.16 5,969,929.39 620,272.83 12.00 2,830.50 111.42 13 14,800.00 89.26 106.41 8,886.69 - 9,278.34 1,328.55 5,969,913.68 620,360.47 12.00 2,919.53 94.00 14,800.82 89.26 106.51 8,886.70 - 9,278.58 1,329.34 5,969,913.46 620,361.27 12.00 2,920.35 93.93 14 14,900.00 83.35 96.15 8,893.11 - 9,298.01 1,426.20 5,969,895.56 620,458.42 12.00 3,019.12 - 120.00 14,950.82 80.40 90.76 8,900.30 - 9,301.05 1,476.40 5,969,893.32 620,508.65 12.00 3,069.08 - 119.33 15 15,000.00 77.05 85.80 8,909.92 - 9,299.62 1,524.58 5,969,895.52 620,556.80 12.00 3,116.28 -125.00 15,100.00 70.57 75.27 8,937.85 - 9,284.01 1,619.13 5,969,912.63 620,651.08 12.00 3,206.68 - 124.0 1/6/2010 8:36:40AM Page 4 COMPASS 2003.16 Build 71 bp Baker Hughes INTEQ BAKER ' Baker Hughes INTEQ Planning Report NYKMES INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S -18 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB S Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Well: S -18 North Reference: True Wel!bore: Plan 6, S -18B Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16.1 Single User Db Planned Survey MD Inc Azi TVDSS N/S E/W Northing Easting DLeg V. Sec TFace (ft) ( ( (ft) (ft) (ft) (ft) (ft) (°1100ft) (it) ( 15,189.85 65.30 65.12 8,971.67 - 9,255.98 1,697.36 5,969,941.89 620,728.85 12.00 3,278.86 - 121.08 TD at 15189.85 - 2 -7/8" • 1 1/6/2010 8:36:40AM Page 5 COMPASS 2003.16 Build 71 bp Baker Hughes INTEQ BAKER I' 0 Baker Hughes INTEQ Planning Report NYBNES INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S -18 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB S Pad MD Reference: S -18A © 72.29ft (Doyon 14) Well: S -18 North Reference: True Wellbore: Plan 6, S -18B Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16.1 Single User Db Targets Target Name - hlUmiss target Dip Angle Dip Dir. TVD +NI-S +EI -W Northing Easting - Shape (1 (1 (ft) (ft) (ft) (ft) (ft) Latitude Longitude S -18B Fault C 0.00 0.00 0.00 - 9,756.42 - 1,111.02 5,969,397.00 617,929.00 70° 19' 30.322 N 149° 2' 37.343 W - plan misses target center by 9070.98ft at 13300.00ft MD (8886.75 TVD, - 8609.72 N, 300.91 E) - Polygon Point 1 0.00 - 9,756.42 - 1,111.02 5,969,397.00 617,929.00 Point 2 0.00 - 9,534.12 - 433.35 5,969,630.00 618,603.00 Point 3 0.00 - 9,721.11 2,021.20 5,969,482.00 621,060.00 Point4 0.00 - 9,532.41 2,862.37 5,969,684.00 621,898.00 Point 5 0.00 - 9,721.11 2,021.20 5,969,482.00 621,060.00 Point 6 0.00 - 9,534.12 - 433.35 5,969,630.00 618,603.00 S -18B Target 3 0.00 0.00 8,972.00 - 9,252.89 1,698.56 5,969,945.00 620,730.00 70° 19' 35.273 N 149° 1 15.332 W - plan misses target center by 3.33ft at 15189.85ft MD (8971.67 TVD, - 9255.98 N, 1697.36 E) - Point S -18B Target 2 0.00 0.00 8,886.00 - 9,255.75 1,248.42 5,969,935.00 620,280.00 70° 19' 35.246 N 149° 1' 28.472 W - plan misses target center by 6.26ft at 14716.90ft MD (8886.12 TVD, - 9261.89 N, 1247.20 E) - Point S -18B Fault B 0.00 0.00 0.00 - 8,772.58 1,874.21 5,970,428.00 620,898.00 70° 19' 39.996 N 149° 1' 10.201 W - plan misses target center by 8917.76ft at 14800.82ft MD (8886.70 TVD, - 9278.58 N, 1329.34 E) - Polygon Point 1 0.00 - 8,772.58 1,874.21 5,970,428.00 620,898.00 Point 2 0.00 - 9,230.91 1,951.95 5,969,971.00 620,983.00 Point 3 0.00 - 9,721.11 2,021.19 5,969,482.00 621,060.00 Point 4 0.00 - 9,230.91 1,951.95 5,969,971.00 620,983.00 S -18B Polygon 0.00 0.00 0.00 - 8,506.93 198.08 5,970,667.00 619,218.00 70° 19' 42.611 N 149° 1' 59.131 W - plan misses target center by 8878.61ft at 13200.00ft MD (8877.20 TVD, - 8526.55 N, 355.13 E) - Polygon Point 1 0.00 - 8,506.93 198.08 5,970,667.00 619,218.00 Point 2 0.00 - 8,579.42 416.98 5,970,598.00 619,438.00 Point 3 0.00 - 8,876.10 393.26 5,970,301.00 619,419.00 Point 4 0.00 - 9,035.19 522.77 5,970,144.00 619,551.00 Point 5 0.00 - 9,156.39 1,353.02 5,970,036.00 620,383.00 Point 6 0.00 - 9,146.45 1,735.26 5,970,052.00 620,765.00 Point 7 0.00 - 9,390.57 1,739.38 5,969,808.00 620,773.00 Point 8 0.00 - 9,371.89 1,003.53 5,969,815.00 620,037.00 1/6/2010 8:36:40AM Page 6 COMPASS 2003.16 Build 71 by Baker Hughes INTEQ BAKER 1 0 A Baker Hughes INTEQ Planning Report KER INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S -18 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB S Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Well: S -18 North Reference: True Wellbore: Plan 6, S -18B Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16.1 Single User Db Point 9 0.00 - 9,240.23 333.47 5,969,936.00 619,365.00 Point 10 0.00 - 8,977.34 154.61 5,970,196.00 619,182.00 Point 11 0.00 - 8,672.91 131.43 5,970,500.00 619,154.00 S -18B Fault A 0.00 0.00 0.00 - 7,932.89 - 679.00 5,971,227.00 618,332.00 70° 19' 48.257 N 149° 2' 24.738 W - plan misses target center by 8956.93ft at 13200.00ft MD (8877.20 TVD, - 8526.55 N, 355.13 E) - Polygon Point 1 0.00 - 7,932.89 - 679.00 5,971,227.00 618,332.00 Point 2 0.00 - 8,483.74 312.47 5,970,692.00 619,332.00 Point 3 0.00 - 8,772.57 1,874.21 5,970,428.00 620,898.00 Point 4 0.00 - 8,652.26 2,612.28 5,970,560.00 621,634.00 Point 5 0.00 - 8,772.57 1,874.21 5,970,428.00 620,898.00 Point 6 0.00 - 8,483.74 312.47 5,970,692.00 619,332.00 S -18B Target 1 0.00 0.00 8,940.00 - 9,178.37 469.48 5,970,000.00 619,500.00 70° 19' 36.008 N 149° 1' 51.209 W - plan misses target center by 40.37ft at 13934.55ft MD (8938.90 TVD, - 9140.97 N, 484.62 E) - Point Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name ( ") (°) 11,693.36 8,787.40 7" 7 8 -1/2 15,189.85 8,971.67 2 -7/8" 2 -7/8 4 -1/8 • 1/6/2010 8:36:40AM Page 7 COMPASS 2003.16 Build 71 by Baker Hughes INTEQ ISM 0 Baker Hughes INTEQ Planning Report BAICiR NUGHU INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S -18 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB S Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Well: S -18 North Reference: True Wel!bore: Plan 6, S -18B Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16.1 Single User Db Plan Annotations I 1 Measured Vertical Local Coordinates Depth Depth +N / -S +E/ -W (ft) (ft) (ft) (ft) Comment 13,150.75 8,879.74 - 8,485.67 382.47 TIP • 13,180.00 8,878.02 - 8,510.11 366.49 KOP 13,200.00 8,877.20 - 8,526.55 355.13 End of 9 Deg /100' DLS 13,241.00 8,878.38 - 8,560.25 331.85 4 13,271.00 8,881.86 - 8,585.09 315.40 5 13,301.00 8,886.93 - 8,610.59 300.45 6 13,331.00 8,892.57 - 8,637.04 287.48 7 13,631.00 8,929.82 - 8,926.93 280.90 8 13,990.82 8,939.14 - 9,159.70 537.62 End of 15 Deg /100' DLS 14,140.82 8,931.73 - 9,177.14 685.80 10 14,360.82 8,910.91 - 9,220.00 898.59 11 14,610.82 8,889.94 - 9,260.99 1,141.42 12 14,710.82 8,886.12 - 9,261.24 1,241.16 13 14,800.82 8,886.70 - 9,278.58 1,329.34 14 14,950.82 8,900.30 - 9,301.05 1,476.40 15 15,189.85 8,971.67 - 9,255.98 1,697.36 TD at 15189.85 Checked By: Approved By: Date: 1/6/2010 8:36:40AM Page 8 COMPASS 2003.16 Build 71 by Project: Prudhoe Bay Ma ' . Aim gnetic uthatNorth: .TUa N22.3OM 1' WELLBORE DETAILS: Plan 6, S-18B REFERENCE INFORMATION H.. . . Site: PB S Pad eo.ga° Magnetic Field Parent Wellbore: S -18A Co -0binate(N /E)Reference: Well S- 18,TmeNorth BAKER Well: S Strength. 57667.1enT 0 Vertical VD)Reference: Mean Sea Leval M � Wellbore: Plan 6, S -188 6 An* on MD: 13150.75 Section(VS) Reference: slot- (0.00N, 0.00E) pth Date:1027 /265 MeasuredDe 18Au722 on 14) 1NTEQ Plan: Plan 6 (S 16IPIan 6, S Meaer BGGM2005 Calwlatun Method: Minimum Curvature - -765' L■ 1 1111 ■■■ WELL DETAILS: S-18 7811 i uiII ! iIIIIIIIIIII Ground Level: 0.00 +N / -S +E / -W Northing Fasting Labfude Longitude Slot 0.00 0.00 5979169.00 618885.00 70° 21' 6.276 N 149° 2' 4.914 W SECTION DETAILS ANNOTATIONS - 7950 - 8100 i Sec MD Inc Azi ssTVD +14/-S +E / -W DLeg TFace VSec Target Annotation 1 13150.75 93.51 211.75 887974 - 8485.67 382.47 0.00 0.00 1850.18 TIP .■■■■■■■■■■■ 2 13160.00 93.23 214.64 8878.02 - 8510.11 366.49 9.91 95.46 1838.69 KOP 84185501 3 13200.00 91.43 214.64 8877.20 - 8526.55 355.13 9.00 180.00 1830.35 End of 9 Deg/100' DLS I■ ■�■,.. ■■■: ■■■ 4 13241.00 85.28 214.64 8878.38 - 8560.25 331.85 15.00 180.00 1813.28 4 1 ■ ■ ■�� 5 13271.00 81.39 212.37 8881.86 - 8585.09 315.40 15.00 210.00 1801.39 5 i1 .1111■:= _ ■11EMO 6 13301.00 79.16 208.40 8886.93 - 8610.59 300.45 15.00 240.00 1791.09 6 v1 - 8711 �_�_� 7 13331.00 79.19 203.82 8892.57 - 8637.04 287.48 15.00 270.00 1782.92 7 8 13631.00 87.25 159.18 8929.82 - 8926.93 280.90 15.00 277.00 1826.78 8 I11_11� ! 1111■■■ ■ • + -8851 r 9 13990.82 90.00 105.25 8939.14 - 9159.70 537.62 15.00 272.00 2120.02 End of 15 Deg/100' DLS f 10 14140.82 95.63 88.13 8931.73 - 9177.14 685.80 12.00 288.50 2268.98 10 I ■. ■ ■11 11� =:1111® :: _ 11 14360.62 95.04 114.64 8910.91 - 9220.00 898.59 12.00 90.00 2485.97 11 0 -9011 12 14610.82 94.36 84.54 8889.94 - 9260.99 1141.42 12.00 270.00 2732.23 12 # 91 I ■■ ■ ■11IIIEM . 111 13 14710.82 90.01 95.73 8886.12 -9261.24 1241.16 12.00 111.00 2830.50 14 lirililliM4MTIMIBBIliiii 15 149500.82 80.40 1 8900.370 - 93088.05 14769.40 12.00 404.00 3069.05 4 ■I 15 14950.82 80.40 90.76 8900.30 - 9301.05 1476.40 12.00 240.00 3069.08 15 � 16 15189.85 65.30 65.12 8971.67 - 9255.98 1697.36 12.00 235.00 3278.86 TD at 15189.85 0 -93 _ �' ■i■m■ ■�■ ■ m ■ IIIII L....iii.ii ice. It -9750 -9911 -600 -450 -300 -150 0 150 300 450 600 750 900 1050 1200 1350 1500 1650 1800 1950 2100 West( - )/East( +) (150 Win) 8721Is11 ri�al ■■ ■■■1111■■■■ ■ ■ ■ ■ ■■ ■■ ■■ ■■■■■■■■■■■■ 886.1lillipiliiiiiiimimioNsimmiimmiimiimmimm • O 88411 ■�I ■ ■ ■ ■■■ ■1111 ■■ ■■■■■ ■ ■■ ■■■■ ■■ ■■■ ■ 1111 ■■ ■■ ■!■■ I`■■■■■■■■■■ �� ■ ■ ■.. ■�mi ■�; ■■ Q 8921 rd■' u ■ ■■ ■ ■r■ ■a■■■■■ ■■■■■■■■ ■■■ ■ ■ ■ ■.■ \ b.., 11111■■■■■■■n I5 De: 11 11 ■■ ■ ■ ■ ■ ■ ■ ■■■■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 11 � 9041 I:1111■■ ■ ■ ■ ■ ■■■■■■ ■■ ■■ ■■■■■ ■■ ■■■ ■ ■■ ■■■■ © : 90 81 1■■■■■■■■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ 912 1■■■■■■■■ .■ ■ ■ ■■ ■■■■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■■ ■ ■ ■ ■ ■ ■ ■■ c 9161 ! ■ ■ ■ ■ ■■ ® �■ ■ ■ ■ ■ ■ ■■■ ■■■■■ ■■■■ ■ ■■■■■ ■ ■ ■ ■ ■■ d 1760 1800 1840 1880 1920 1960 2000 2040 2080 2120 2160 2200 2240 2280 2320 2360 2400 2440 2480 2520 2560 2600 2640 2680 2720 2760 2800 2840 2880 2920 2960 3000 3040 3080 3120 3160 3200 3240 3280 3320 Vertical Section at 100.00° (40 ft/in) • WWII • BPPASSPORT • ' S Travelling Cylinder Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well S-18 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB S Pad MD Reference: S -18A @ 72.29ft (Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: S -18 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Welibore Plan 6, S -18B Database: EDM .16 - Anc Prod - WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Reference Plan 6 Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 13,150.75 to 15,189.85ft Scan Method: Tray. Cylinder North Results Limited by: Maximum center - center distance of 1,715.61ft Error Surface: Elliptical Conic - - --- - - -- -- - - -- 1 Survey Tool Program Date 1/6/2010 From To (ft) (ft) Survey (Welibore) Tool Name Description 107.60 10,923.74 1 : Schlumberger GCT multishot (S -18) GCT -MS Schlumberger GCT multishot 10,937.40 13,150.75 S -18A IIFR (S -18A) MWD +IFR +MS MWD + IFR + Multi Station 13,150.75 15,189.85 Plan 6 (Plan 6, S -18B) MWD MWD - Standard Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 11,693.36 8,787.40 7" 7.000 8.500 15,189.85 8,971.67 2 7/8" 2.875 4.125 Summary Reference Offset Centre to No -Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Welt - Welibore - Design (ft) (ft) (ft) (ft) PB M Pad M-05A - M -05A - M -05A 14,950.82 15,600.00 1,683.34 856.42 846.32 Pass - Major Risk PB S Pad Plan S -130 SL1 - Plan S -130 - Plan #2 S -130 Out of range Plan S -135 - Plan S -135 - Plan #1 S -135 Out of range S -18 - S -18A - S -18A 13,199.99 13,200.00 0.35 1.24 -0.89 FAIL - Major Risk S -29 - Plan S-29B - S -29B wp06 Out of range S -29 - S -29 - S -29 Out of range S -29A - Plan S -29AL2 - S -29AL2 wp03 Out of range S -29A - S -29A - S -29A Out of range S -29AL1 - S -29AL1 - S -29AL1 Out of range CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 1/6/2010 11:01:32AM Page 2 of 6 COMPASS 2003.16 Build 71 Alaska Depai tment of Natural1sources Land Administration System Page 1 of,4' Alaska Mapper Land Records /Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28260 Printable Case File Summary See Township, Range, Section and Acreage? New Search Yes O No LAS Menu 1 Case Abstract 1 Case Detail 1 Land Abstract File: ADL 28260 Search for Status Plat Updates As of 02/16/2010 Customer: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER - ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/19/1965 Total Acres: 2560.000 Date Initiated: 05/28/1965 Office of Primary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction: AA -NRB ASSIGNMENT APPROVED Meridian: U Township: O11N Range: 012E Section: 01 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 012E Section: 02 Section Acres: 640 Meridian: U Township: 011N Range: 012E Section: 11 Section Acres: 640 Meridian: U Township: O11N Range: 012E Section: 12 Section Acres: 640 Legal Description 05 -28 -1965 * * * SALE NOTICE LEGAL DESCRIPTION C14- 5511N 12E UM 1, 2, 11, 12 2560.00 04 -01 -1977 * * * * ** *UNITIZED LEASE LEGAL DESCRIPTION * * * * * * * * * * * * * * ** ENTIRE LEASE COMMITTED TO PRUDHOE BAY UNIT PRUDHOE BAY UNIT TRACT 47 http: / /dnr. alaska.gov /proj ects /1as /Case_Summary. cfm ?FileType= ADL &FileNumber = 2826... 2/16/2010 Alaska Department of Natural1sources Land Administration System Page 1 of,4' t Alaska Mapper Land Records /Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28257 Printable Case File Summary See Township, Range, Section and Acreage? New search @ Yes O N0 LAS Menu 1 Case Abstract 1 Case Detail 1 Land Abstract File: ADL 28257 -lap S earch for Status Plat Updates As of 02/16/2010 Customer: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER - ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/11/1965 Total Acres: 2560.000 Date Initiated: 05/28/1965 Office of Primary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction: AA -NRB ASSIGNMENT APPROVED Meridian: U Township: 012N Range: 012E Section: 25 Section Acres: 640 Search Plats Meridian: U Township: 012N Range: 012E Section: 26 Section Acres: 640 Meridian: U Township: 012N Range: 012E Section: 35 Section Acres: 640 Meridian: U Township: 012N Range: 012E Section: 36 Section Acres: 640 Legal Description 05 -28 -1965 * * * SALE NOTICE LEGAL DESCRIPTION C14- 52 12N 12E UM 25, 26, 35, 3 6 2560.00 04- 01- 1977 * ** UNITIZED LEGAL DESCRIPTION * ** PRUDHOE BAY UNIT ESTABLISHED T. 12N.,R. 12 E., U.M. http://dnr.alaska.gov/projects/las/Case Summary. cfm ?FileType= ADL &FileNumber = 2825... 2/16/2010 • • TRANSMITTAL LETTER CHECKLIST WELL NAME ' '4/ /K,8 PTD # /OOa? /O Development ✓ Service Exploratory Stratigraphic Test Non - Conventional Well • FIELD: P,e%/Q,4496" POOL: 17",41/& ,110E' X44 r� /G Circle Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ADD -ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well , Permit No. (If last two digits in API No. . Production / injection should API number are continue to be reported as a function of the original API number between 60 -69) stated above. PILOT HOLE In accordance with 20 AAC 25.005(0, all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Should conventional core be acquired in this well, representative chip samples from each foot of core must be submitted to the Commission in accordance with 20 AAC 25.071. Non - Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 2/1/2010 EP 46 E y 0) 0 ' a) a co co 0 a j a) c Q I 0 I W O a 1 a) 3 E 0) a `°I o ° ° �' �, 3 —O; ,, 0 = N I a0 � m. a a) 6 �' m ' 3' o' � 3 1I a� N @ o V), M. Z - a m 0 a 0 C I Q a) 3 o a ° Q I 1 a) E — W Q' cn C N' CL N ' a' 2 �' I D ! , � v E (0 a 0) �- co � � (0 , � co, N 0' co D . .c N N IN .a El_) , #, ' O) 0) 'ill 0 , . > E, 0 , a) O c m ur, V) U a), C N co' 2' N O m CO C 'p. O- • N. j co m O U' U ' O a) 0. w U' a (/)' N O z C7 a) = c o i ' U 0 d 0 Z' co, �' E a o a) o. 0) o a) � m I U c o. in' a' U' c M , o. ' 0_' m ' 2' 2, z 2 j w 1 , ' , N' N 0 N N (A CA N. N' CO V) (0 (A CO CO CO N V) CA (n CO ` (A N • Q, 0, a), 0, a) a) a), 0. a) 0,, 0, 0, a). Q < < Q Q, Q Q, Q, 0, a), a) a) 0, Q 0, 0 a), a) a) m. Q , 0 Q, Q, Q, < ' o Z, >-, Y >-, >-, >- ›- }, }, }, › Z Z Z Z Z Z; Z, Z, >-, }, >-, >-, Z, >-, }, Z, Z Z, Z, Z Z (0 ° >, ' l I o\ i� c. '' I ai E 3 E E 0 o U 5 m . 1 c a*, N O U 'y ° 0 1 co it c 0 77 �; 3, o vI o 3 a) m O a) c, c p a) Z o •Z O m . E I' o I 0 C j C, o 0 N I U, Q f0. U ,_ N a) • 2 7 2 7 . V . . C J 3' O) V) ° 0 p N N ' . -t 1 ' c; co o m �, a) w, c ' j ' 't' c E N m a >, a)' E o CL) i 7. a) C > ' - c C� O W O W o a) C C 3, 3 cL' >� N' `� I W ... U 0 O a), c•-), � U N� a O p. 0 70� � co 1�' Q c a o .c %, >. y a 4 O 0' - o 'o c; E' aa))' . c .� o. co :52,, O v i u N m U, r' Z m. 3 �, o N c' 0)r C v,' a c' Q. N m m' m 0) W Z . YO' C' .0' 0' 0' C' '0 m. m. Q `'- � � U• `, a )' m O' O 0) a)' ' N d c, c c a)' c, O ° a) — O = a), to �� > >, � - 0� 4 � d" w' a)' 0 N L O: 1 O C q E , E, 0 C C E co O M C c , N I - �, C Q ° 0_ � 0, C, a) dJ = O O - 0 7 0 v a) C 3 0 rn 7 • o : . n 4 N, o1 Qj d� .0 � . 31 2 >, to N >, a) O • Q , a' o a) a) c c ' o, c' c' 0 o' ° ; g ' $ ' Y a o U °) ° 0 E m m' m Q m w 1 T o' w a 1 c • o ° U a) > s o' 0 d c a) m _ m , w ' c ' o E 3 m 2 T. .c 3' v o' •5 E a Q co E' ' -a m 0 03 m ° 21 r L' a m m; -0 E aa))' (o' c' c, , o c � ' co r a) ) a) o , 3' o c; ° >. 3 c E O Z d �, C' t n, W; �, .� f6, 3; • 3. N ' . N. �, .. p V '� 'U ' . m- _ .� 3 0' 3' � � ° � a) m 0' `A' N. ° ° - O . O ) C. "30. O W'. Z y ; W V O O o m '� a, 'C'' , @ O' a) .a 0. a . o' m' 'E o c' o a) o o c o' o N' v' E . m m' E •t o a� a 3' c d F in a a m' ` m a 0 o 2 ' c' v ' - 6 a p a ? a) — a 0 a) 0 m E 0) o' . U' Y =' c' o ' 0 N' I ' a N N E C, O O N 3� @ ' � N N ' N , N ' :''' C'� @ 1 1 C m 7' 7' (6 co. C m _O - 0 c T ' 0 3 = C N' 0 � - y C •a m O. -1! `m c . a a v; >., v a -0� )' a)' 0 3 v' 0) c 0� p, a)' c. m' ' a w @ 0 o' O 1 a)' Q) >, a) LL f0' 4' _' "O v '0 U ' ° c n 'O y, y' C N' •N' O v o .( �, L4 3 a) P. 0 O. � C U' 0 C ' m ' C E ' 0 { X m , E, -' (0 ( Y, CO, .I p L N c c 0 .3 7 a) p V ' ° ° U a) a ) = D 3 'O d m ° c U c (o N ( U co w w c 3 ' ( ° i 0 ( m ) --c-', (o o o 0 0 a 0)5 o c 0; a) , o o- 1p ' iv� -a m vi, Q E .3 a) c 1 a o -p, c, d w. (3, o 0 0 .� .� - c Q o Q ( p ) v ' m >> 3 En Q a) ' v a) C w w Y L 2, CO a E W m E w — — 0, a) a). E, E. c 3 c `t H 1-- F .3, a), 0 > = _ d d, p, 0 a U Lo y, m . c m 41 ; °; �, �' co a ; O 0 a; C; 0 ca e � ' a ; a `; Z ' I 1 0 cn 0' U 0 0 < w < a 0 m m 0 � ' 2 2; l a, o; V) n; 0„ 0 a 0 N M V M (C W 0) O N M V (0 O r (O O N M V 10 (0 f � ap O ) E o N M (p O n W 0) r N N N N N N N N N N 0) M M M M M M M M M __M 0 O O O w N w N '', w N U O C O C as m m p 0 (p 0) p a0 p (O 'Env 0 0 CO N .` N N a) E -... N E a) o) o it I. 0 E a cn - o v) ° o..) U d Q Q Q I W Q 0 0 0 i- v f • i Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. • • tapescan.txt * * ** REEL HEADER * * ** MWD 11/06/28 BHI 01 LIS Customer Format Tape * * ** TAPE HEADER * * ** MWD 11/02/19 3644578 01 2.375" CTK * ** LIS COMMENT RECORD * ** Remark File Version 1.000 Extract File: ldwg.las Version Information VERS. 1.20: CWLS log ASCII Standard - VERSION 1.20 WRAP. NO: One line per frame Well Information Block #MNEM.UNIT Data Type Information STRT.FT 12937.5000: Starting Depth ! , coR 7 STOP.FT 15183.0000: Ending Depth Imo'( STEP. FT 0.5000: Level Spacing NULL. - 999.2500: Absent value COMP. COMPANY: BP Exploration (Alaska), Inc. WELL. WELL: S - 18B FLD . FIELD: Prudhoe Bay Unit LOC . LOCATION: 70 deg 21' 6.276 "N 149 deg 02' 4.914 "W CNTY. COUNTY: North Slope Borough STAT. STATE: Alaska SRVC. SERVICE COMPANY: Baker Hughes INTEQ TOOL. TOOL NAME & TYPE: 2.375" CTK DATE. LOG DATE: 19 Feb 2011 API . API NUMBER: 500292115602 Parameter Information Block # MNEM.UNIT Value Description SECT. 35 Section TOWN.N T11N Township RANG. R12E Range PDAT. MSL Permanent Datum EPD .F 0 Elevation Of Perm. Datum LMF . DF Log Measured from FAPD.F 72.29 Feet Above Perm. Datum DMF . DF Drilling Measured From EKB .F 0 Elevation of Kelly Bushing EDF .F 72.29 Elevation of Derrick Floor EGL .F 0 Elevation of Ground Level Page 1 d 1 U —OA c • • tapescan.txt CASE.F N/A Casing Depth OS1 . DIRECTIONAL Other Services Line 1 Remarks (1) All depths are Measured Depths (MD) unless otherwise noted. (2) All depths are Bit Depths unless otherwise noted. (3) All True vertical Depths (TVDSs) are subsea corrected. (4) All Formation Evaluation data is realtime data. (5) Baker Hughes INTEQ utilized CoilTrak downhole tools and t he Advantage Advanta g surface system to log this well. (6) Tools ran in the string included Casing Collar Locator, an Electrical Disconnect and circulating Sub, a Drilling Performance Sub (Inner and Outer Downhole Pressure, vibration and Downhole weight on Bit), a Directional and Gamma sub, and a Hydraulic Orienting sub with a Near Bit Inclination Sensor. (7) Data presented here is final and has been depth shifted to a Primary Depth Control(PDC) provided by schlumberger GR CSG dated 22 Feb 2011 per Walter Tifental with BP Exploration (Alaska), Inc. (8) The sidetrack was drilled from s - 18A through a milled window in a 4 1/2 inch liner. Top of window 13166 ft.MD (8878.8 ft.TVDSS) Bottom of window 13176 ft.MD (8878.40 ft.TVDSS) (9) Tied to S -18A at 13151 feet MD (8879.7 feet TVDSS). (10) The interval from 15151 ft to 15183 ft MD (8962.7 ft. to 8975.5 ft. TVDSS) was not logged due to sensor to bit offset at well TD. MNEMONICS: GRAX -> Gamma Ray [MWD] (MWD -API units) ROP_AVG -> Rate of Penetration, feet /hour RACLX -> Resistivity (AT)(LS)400kHz- Compensated Borehole Corrected (OHMM) RACHX - Resistivity (AT)(LS)2MHz- Compensated Borehole Corrected (OHMM) RPCLX - Resistivity (PD)(LS)400kHz- Compensated Borehole Corrected (OHMM) RPCHX -> Resistivity (PD)(LS)2MHz- Compensated Borehole Corrected (OHMM) TVDSS -> True vertical Depth (Subsea) CURVE SHIFT DATA BASELINE, MEASURED, DISPLACEMENT 12950.8, 12947.4, ! - 3.40527 12954, 12952.4, ! - 1.60254 12959.2, 12956.8, ! - 2.4043 12968.8, 12966.2, ! - 2.60449 12976.6, 12973.4, ! - 3.20508 12990.1, 12985.5, ! - 4.60742 12992.5, 12987.5, ! - 5.00781 12997.5, 12993.1, ! - 4.40723 13003.8, 12999.4, ! - 4.40723 13012.3, 13008.8, ! - 3.40527 13023.1, 13020.5, ! - 2.60352 13026.7, 13023.5, ! - 3.20508 13029.1, 13025.9, ! - 3.20508 13036.8, 13035, ! - 1.80371 13045.8, 13046.6, ! 0.801758 13050.2, 13053.5, ! 3.20508 13068.6, 13072.2, ! 3.60547 13074.2, 13078, ! 3.80664 13100.5, 13097.7, ! - 2.80469 13101.9, 13099.3, ! - 2.60352 13107.3, 13104.5, ! - 2.80469 13112.7, 13110.9, ! - 1.80273 13117.1, 13116.7, ! - 0.400391 13118.3, 13118.1, ! - 0.200195 13121.1, 13121.3, ! 0.200195 Page 2 • • tapescan.txt 13129.3, 13126.7, ! - 2.60449 13133.3, 13132.1, ! - 1.20117 13137.5, 13136.3, ! - 1.20215 13146.3, 13145.5, ! - 0.801758 13151.1, 13152.1, ! 1.00098 13160.6, 13161.5, ! 0.801758 13161.7, 13163.7, ! 2.00293 13165.3, 13165.3, ! 0 13171.7, 13171.5, ! - 0.200195 13173.5, 13172.9, ! - 0.600586 13180.9, 13180.1, ! - 0.800781 13184.8, 13182.8, ! - 2.00293 13187.7, 13184.8, ! - 2.80469 13200.1, 13199.3, ! - 0.800781 13204.7, 13204.1, ! - 0.600586 13215.6, 13213.6, ! - 2.00293 13219.6, 13217.6, ! - 2.00391 13222.1, 13221, ! - 1.00098 13224.1, 13224.3, ! 0.201172 13225, 13225.6, ! 0.601562 13228.2, 13228, ! - 0.200195 13232.4, 13232.2, ! - 0.200195 13238.1, 13234.8, ! - 3.20508 13240.1, 13238.5, ! - 1.60254 13242.3, 13241.9, ! - 0.400391 13244.9, 13244.3, ! - 0.600586 13248.4, 13246.8, ! - 1.60254 13254.8, 13250.8, ! - 4.00586 13287.1, 13287.7, ! 0.600586 13293.9, 13294.1, ! 0.200195 13304.3, 13304.9, ! 0.600586 13319.5, 13319.9, ! 0.401367 13328.3, 13329.7, ! 1.40234 13333.2, 13333.6, ! 0.400391 13341.4, 13342, ! 0.601562 13342.2, 13343.6, ! 1.40234 13343.8, 13345.4, ! 1.60254 13346.8, 13348.4, ! 1.60254 13350.4, 13352.1, ! 1.60254 13352.9, 13354.5, ! 1.60254 13358.1, 13358.3, ! 0.200195 13362.9, 13363.5, ! 0.600586 13366.6, 13367.4, ! 0.801758 13374, 13375, ! 1.00195 13377, 13377.4, ! 0.400391 13379.6, 13380.4, ! 0.800781 13385.1, 13385.7, ! 0.600586 13388.7, 13389.7, ! 1.00195 13393.3, 13393.7, ! 0.401367 13397.5, 13398.3, ! 0.801758 13403.1, 13401.3, ! - 1.80371 13407.7, 13406.9, ! - 0.801758 13414.1, 13413.1, ! - 1.00195 13421.3, 13419.7, ! - 1.60254 13423.5, 13422.1, ! - 1.40137 13447.1, 13446.3, ! - 0.800781 13448.7, 13447.5, ! - 1.20117 13452.7, 13451.5, ! - 1.20215 13455.1, 13453.7, ! - 1.40137 13464.5, 13463.1, ! - 1.40137 13467.7, 13467.1, ! - 0.601562 13469.9, 13469.9, ! 0 13473.5, 13473.9, . 0.400391 Page 3 • • tapescan.txt 13496.1, 13495.5, ! - 0.601562 13498.9, 13498.7, ! - 0.201172 13502.7, 13502.7, ! 0 13508.3, 13508.5, ! 0.200195 13513.7, 13512.7, ! - 1.00195 13519.9, 13519.3, ! - 0.600586 13523.1, 13522.7, ! - 0.400391 13526.1, 13525.7, ! - 0.400391 13544.1, 13544.3, ! 0.201172 13548.5, 13549.7, ! 1.20215 13569.3, 13569.9, ! 0.600586 13573.7, 13573.9, ! 0.200195 13651.2, 13652, ! 0.801758 13663.1, 13663.7, ! 0.600586 13668.3, 13668.5, ! 0.200195 13679.2, 13682.6, ! 3.40527 13686, 13689, ! 3.00488 13729.4, 13731.6, ! 2.2041 13745.7, 13747.1, ! 1.40234 13788.2, 13788.8, ! 0.600586 13795.3, 13796.3, ! 1.00195 13808.7, 13807.1, ! - 1.60254 13816.7, 13815.7, ! - 1.00195 13826.6, 13826, ! - 0.600586 13833, 13830.8, ! - 2.20312 13837.6, 13836.8, ! - 0.800781 13841, 13840.2, ! - 0.801758 13847.1, 13846.1, ! - 1.00098 13851.1, 13850.3, ! - 0.801758 13856.5, 13856.7, ! 0.200195 13862.9, 13861.7, ! - 1.20117 13885.5, 13883.9, ! - 1.60254 13892.5, 13890.3, ! - 2.2041 13895.1, 13893.3, ! - 1.80273 13903.1, 13903.1, ! 0 13910.1, 13909.1, ! - 1.00195 13912.5, 13912.3, ! - 0.201172 13948.5, 13948.9, ! 0.400391 13950.1, 13950.1, ! 0 13963.5, 13964.3, ! 0.801758 13971.4, 13972.2, ! 0.801758 13990.6, 13991, ! 0.400391 14005.4, 14004.6, ! - 0.801758 14071.1, 14068.9, ! - 2.20312 14120.3, 14119.1, ! - 1.20117 14122.7, 14121.9, ! - 0.801758 14123.7, 14122.9, ! - 0.801758 14127.9, 14127.7, ! - 0.200195 14129.9, 14129.5, ! - 0.401367 14131.8, 14131.8, ! 0 14133.9, 14133.3, ! - 0.600586 14139.3, 14140.3, ! 1.00098 14152.7, 14151.5, ! - 1.20215 14160.1, 14159.3, ! - 0.800781 14170.9, 14170.9, ! 0 14177.1, 14177.1, ! 0 14184.3, 14183.9, ! - 0.401367 14188.5, 14189.7, ! 1.20215 14190.1, 14192.3, ! 2.2041 14193.1, 14195.5, ! 2.4043 14202.7, 14202.9, ! 0.200195 14235, 14236.8, ! 1.80273 14244.5, 14244.3, . - 0.200195 Page 4 . • tapescan.txt 14261.9, 14263.1, ! 1.20215 14267.3, 14267.9, ! 0.600586 14272.1, 14275.1, ! 3.00488 14278.5, 14279.3, ! 0.800781 14316.6, 14317.4, ! 0.800781 14345.1, 14346.3, ! 1.20215 14350.9, 14351.5, ! 0.600586 14356.7, 14357.9, ! 1.20215 14358.7, 14359.9, ! 1.20117 14389.8, 14390.6, ! 0.801758 14413.6, 14408.4, ! - 5.20801 14416.6, 14412.2, ! - 4.40625 14425.4, 14421.4, ! - 4.00684 14439.3, 14437.1, ! - 2.2041 14444.5, 14441.3, ! - 3.20508 14448.7, 14445.9, ! - 2.80469 14451.3, 14449.5, ! - 1.80273 14529.7, 14531.1, ! 1.40234 14537.5, 14538.1, ! 0.601562 14557.6, 14556.4, ! - 1.20117 14564.7, 14564.1, ! - 0.601562 14572.5, 14570.3, ! - 2.2041 14581.8, 14579.2, ! - 2.60449 14585.6, 14586.4, ! 0.801758 14592.7, 14593.1, ! 0.400391 14597.1, 14597.5, ! 0.401367 14598.9, 14599.3, ! 0.400391 14600.7, 14601.7, ! 1.00098 14604.9, 14606.7, ! 1.80273 14607.5, 14609.1, ! 1.60254 14611.1, 14612.1, ! 1.00195 14615.5, 14615.7, ! 0.200195 14620.1, 14620.7, ! 0.600586 14622.9, 14623.5, ! 0.600586 14629.1, 14629.9, ! 0.800781 14637.5, 14636.1, ! - 1.40234 14666.5, 14664.9, ! - 1.60254 14669.7, 14668.3, ! - 1.40137 14672.7, 14670.5, ! - 2.20312 14676.5, 14674.7, ! - 1.80273 14680.5, 14677.5, ! - 3.00488 14687.1, 14683.9, ! - 3.20605 14689.9, 14687.5, ! - 2.40332 14694.1, 14691.5, ! - 2.60449 14702.7, 14699.1, ! - 3.60547 14706.1, 14702.9, ! - 3.20508 14724.7, 14723.9, ! - 0.801758 14729.5, 14728.1, ! - 1.40234 14746.5, 14745.1, ! - 1.40234 14750.5, 14748.3, ! - 2.2041 14774.4, 14772.2, ! - 2.20312 14779, 14775.4, ! - 3.60547 14796.4, 14792.2, ! - 4.20703 14802.1, 14798.2, ! - 3.80566 14821.9, 14819.9, ! - 2.00293 14827.7, 14827.5, ! - 0.200195 14831.1, 14831.3, ! 0.200195 14836.9, 14836.7, ! - 0.200195 14845.6, 14845.4, ! - 0.200195 14857.2, 14858, ! 0.801758 14883.2, 14882.6, ! - 0.601562 14887.8, 14886.8, ! - 1.00195 14894.5, 14894.3, ! - 0.200195 Page 5 • • tapescan.txt 14900.7, 14900.1, ! - 0.601562 14912.7, 14912.5, ! - 0.200195 14944.5, 14943.5, ! - 1.00195 14956.7, 14954.1, ! - 2.60449 14968.1, 14965.3, ! - 2.80469 14977.3, 14975.5, ! - 1.80273 14987.8, 14981, ! - 6.81152 14996.3, 14989.4, ! - 6.81055 14998.9, 14993.3, ! - 5.60938 15021.7, 15016, ! - 5.60938 15033.3, 15027.7, ! - 5.6084 15047, 15039.8, ! - 7.21191 15051, 15043.2, ! - 7.8125 i 15054.9, 15049.5, - 5.4082 15062.1, 15056.1, ! - 6.00977 15072.5, 15067.1, ! - 5.40918 15077.3, 15071.7, ! - 5.60938 15084.3, 15078.3, ! - 6.00879 15097.9, 15090.4, ! - 7.41211 15107.3, 15100.3, ! - 7.01172 15111.1, 15104.7, ! - 6.41016 15118.5, 15112.1, ! - 6.41016 15123.7, 15121.1, ! - 2.60352 15128.9, 15125.5, ! - 3.40625 15138.1, 15134.1, ! - 4.00684 15144.1, 15138.7, ! - 5.40918 15147.5, 15143.3, ! - 4.20703 EOZ END ! BASE CURVE: GROH, OFFSET CURVE: GRAX Tape Subfile: 1 315 records... Minimum record length: 10 bytes Maximum record length: 132 bytes * * ** FILE HEADER * * ** MWD .001 1024 * ** LIS COMMENT RECORD * ** 11111111 Remark File Version 1.000 The data presented here is final and has been depth adjusted to a Primary Depth Control (PDC) log provided by Schlumberger GR CSG dated 22 Feb 2011 per Walter Tifental with BP Exploration (Alaska), Inc. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale Units: Feet Page 6 • • tapescan.txt Frame spacing: 0.500000 Frame spacing units: [F ] Number of frames per record is: 36 one depth per frame (value= 0) Datum specification Block Sub -type is: 1 FRAME SPACE = 0.500 * F ONE DEPTH PER FRAME Tape depth ID: F. 6 Curves: Name Tool Code samples units Size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 125 Tape File Start Depth = 12937.500000 Tape File End Depth = 15179.000000 Tape File Level Spacing = 0.500000 Tape File Depth units = feet * * ** FILE TRAILER * * ** Tape Subfile: 2 138 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * ** FILE HEADER * * ** MWD .002 1024 * ** LIS COMMENT RECORD * ** Remark File version 1.000 This file contains the raw - unedited field MWD data. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale units: Feet Page 7 • • tapescan.txt Frame spacing: 0.250000 Frame spacing units: [F ] Number of frames per record is: 36 one depth per frame (value= 0) Datum Specification Block Sub -type is: 1 FRAME SPACE = 0.250 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool Code Samples Units Size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 250 Tape File Start Depth = 12940.750000 Tape File End Depth = 15183.000000 Tape File Level Spacing = 0.250000 Tape File Depth units = feet * * ** FILE TRAILER * * ** Tape Subfile: 3 263 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * ** TAPE TRAILER * * ** MWD 11/02/19 3644578 01 * * ** REEL TRAILER * * ** MWD 11/06/28 BHI 01 Page 8 410 411 tapescan.txt Tape Subfile: 4 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes 0 Tape Subfile 1 is type: LIS 0 Tape Subfile 2 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 12937.5000 54.6000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 12938.0000 54.7980 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 15179.0000 - 999.2500 74.4000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 12937.500000 Tape File End Depth = 15179.000000 Tape File Level Spacing = 0.500000 Tape File Depth units = feet 0 Tape Subfile 3 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 12940.7500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 12941.0000 54.6000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 15183.0000 - 999.2500 74.4000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 12940.750000 Tape File End Depth = 15183.000000 Tape File Level Spacing = 0.250000 Tape File Depth units = feet 0 Tape Subfile 4 is type: LIS Page 9
