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211-161
THE STATE ALASKA GOVERNOR MIKE DUNLEAVY September 18, 2019 Mr. Tim Jones Land Manager Oil Search Alaska LLC. 900 East Benson Blvd Anchorage, AK 99508 Re: Location Clearances Pikka B STI (PTD #2181670) Pikka C STI (PTD #2181630) Qugruk 2 (PTD #2111670) Kachemach 1 (PTD #2111610) Dear Mr. Jones: Alaska Cil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 W W W.aogccalaska.gov The Alaska Oil and Gas Conservation Commission (AOGCC) inspected the surface plug and abandonment of Pikka B STI on April 5, 2019 and Pikka C STI on April 7, 2019. AOGCC waived witness to the surface plug and abandonment of Qugruk 2 on March 29, 2012 as well as Kachemach 1 on April 18, 2012. The final location clearance inspections were completed on August 12, 2019, and copies of the AOGCC location clearance inspection reports are attached. Each drill site was found to be in compliance with onshore location clearance requirements as stated in 20 AAC 25.170. The AOGCC requires no further work on the subject wells or locations at this time. However, Oil Search Alaska remains liable if any problems were to occur with these wells in the future. Sincerely, CC esCLelowski Commissioner MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg DATE: 8/12/19 P. I. Supervisor FROM: Lou Laubenstein SUBJECT: Location Inspection Petroleum Inspector Kachemach #1 PTD 2111610 Oil Search (Alaska), LLC 8/12/19: 1 met Sherard Lier (Oil Search) at the Deadhorse Aviation Center to board a helicopter and fly out to inspect the Kachemach #1 abandoned wellsite for location clearance (one of 4 site inspections today). The well was drilled and P&A'd during the 2012 winter exploration season. This inspection was from the helicopter hovering over the location. The Kachemach #1 location was free of drilling debris and materials from the winter operation, and there was no sign of any sheen or spillage. Attachments: Photo 2019-0812_ Location_ Clear _Kachemach- I ll.docx Page 1 of 2 Location Inspection — Kachemach #1 (PTD 2111610) Photo by AOGCC Inspector L. Laubenstein 8/12/2019 2019-0812_Location_Clear_Kachemach-1 11.docx Page 2 of 2 MEMORANDUM TO: FROM Jim Reggn��C /i6b1 j P. I. Supervisor State of Alaska Alaska Oil and Gas Conservation Commission DATE: 8/12/19 Lou Laubenstein SUBJECT: Location Inspection Petroleum Inspector Kachemach #1 PTD 2111610 Oil Search (Alaska), LLC 8/12/19: 1 met Sherard Lier (Oil Search) at the Deadhorse Aviation Center to board a helicopter and fly out to inspect the Kachemach #1 abandoned wellsite for location clearance (one of 4 site inspections today). The well was drilled and P&A'd during the 2012 winter exploration season. This inspection was from the helicopter hovering over the location. The Kachemach #1 location was free of drilling debris and materials from the winter operation, and there was no sign of any sheen or spillage. Attachments: Photo 2019-0812_Location_Clear_Kachemach-1 Il. docx Page 1 of 2 Location Inspection — Kachemach #1 (PTD 2111610) Photo by AOGCC Inspector L. Laubenstein 8/12/2019 2019-0812_ Location_ Clear_ Kachemach-1 11. docx Page 2 of 2 i 7 • N I I I 0) I I I C C cv p •co co �I 0) c m m c •E •E a O L L L' L' li LI I y L•� o O of o01 O o1 0 0l of 01 0M a)4 °)13 0 °)o a)o °�o 0 0 0m m .t.°I m�1 m�1 m�1 m�1 �I �1 m0 Y o Yv Yv Yv Y-o v y v Ya y 2 >, 'O- o V OI a) a) a) y 0 y a) y a) o a) a) a) Ti a) a)•o N v y a)v o a) o a)v co a)a- N v a) Z2 Ew E o E o f0 Eo„..; Eco_.; Eo „.... Eo Eo y Eo O o a co O CO0 (c. o..- CO CO (I) C a) C a) c @ a= C a)Q) C a)p C a)co C a)to CO a) N C N M Q N a)p a)� dfe0 a)CLLC) a)cttn tLYU) ow— a)cc� mrtv C CO IL yl LL > iIw'd' LLY0 LI->,op LIRD -- Z. 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Fully logged: 5 /t-1 / (4 Guhl, Meredith D (DOA) From: FERNANDEZ TORRENT, RICARDO [rfernandezt@repsol.com] Sent: Monday, May 19, 2014 12:31 PM To: Guhl, Meredith D (DOA); MARTIN VICENTE, ALEJANDRO Cc: Bettis, Patricia K (DOA); Davies, Stephen F (DOA); LEANDRO MACIAS, FERNANDO; ALUJA , JUAN ANDRES Subject: RE: Kachemach 1, PTD 211-161, Missing data Attachments: K1 Transmittal Letter AOGCC_signed.pdf Dear Meredith, I would like to apologize, the screen capture doesn't belong to the CD sent to the AOGCC. In order to clarify the situation, we had summited on May 15th of 2012 all the information required. Later one, in other shipments, it was provided: - Biostratigraphic Analysis of the cuttings. - Sidewall Core Laboratory Analysis. So, please let us know if we can provide any other information. Again my apologizes for the inconvenience. Thank you. Ricard From: Guhl, Meredith D (DOA) [mailto:meredith.guhl@alaska.gov] Sent: Monday, May 19, 2014 2:19 PM To: FERNANDEZ TORRENT, RICARDO; MARTIN VICENTE, ALEJANDRO Cc: Bettis, Patricia K (DOA); Davies, Stephen F (DOA); LEANDRO MACIAS, FERNANDO; ALUJA , JUAN ANDRES Subject: RE: Kachemach 1, PTD 211-161, Missing data Dear Ricard, Thank you for sending the requested digital information. Below is a screen capture of the primary CD we received with Kachemach 1 data on it, which is apparently an early iteration of the data collected. Plane. __ - -_ Type 01.lrst of top; 5/194011 9:50 AM frk folder 02.Mudloq 5/191201/930 AM File folder 03.Cores and SWC 5/1912011930 AM Fie folder 04.Summary of logs and samples 5(19/20119:50 AM fat folder 05 Summary of production tests(DST,XP_. 5/19/2011 950 AM Fit folder 05.Cuttiogs set 5,19/20119.30 AM File folder 07.logs 5/19/20149:51 AM file folder In Folder 3, Cores and SWC, the Laboratory Reports file is empty: 1 M Ni a t11f►OO't Tti71l►lf►dirn►dit v leCMasw/She t laMiA••0110►01 - M 401*0 001f*MOW p If • I Given this empty folder and the discrepancy in files listed between the CD at AOGCC versus the CD Repsol, I wonder if the final, complete dataset for Kachemach 1 was submitted to AOGCC? I have attached an excel file containing the listing of files received to date for Kachemach 1. Please review the file listing and advise if all data for Kachemach 1 has been transmitted to AOGCC. Thank you, Meredith Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission meredith.guhl@alaska.gov Direct: (907)793-1235 CONFIDENTIALITY NOTICE:This e-mail message,including any attachments,contains information from the Alaska Oil and Gas Conservation Commission(AOGCC),State of Alaska and is for the sole use of the intended recipient(s).It may contain confidential and/or privileged information. The unauthorized review,use or disclosure of such information may violate state or federal law.If you are an unintended recipient of this e-mail, please delete it,without first saving or forwarding it,and,so that the AOGCC is aware of the mistake in sending it to you,contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. From: FERNANDEZ TORRENT, RICARDO [mailto:rfernandezt@repsol.com] Sent: Monday, May 19, 2014 6:46 AM To: Guhl, Meredith D (DOA); MARTIN VICENTE, ALEJANDRO Cc: Bettis, Patricia K (DOA); Davies, Stephen F (DOA); LEANDRO MACIAS, FERNANDO; ALUJA, JUAN ANDRES Subject: RE: Kachemach 1, PTD 211-161, Missing data Dear Meredith, Thanks for letting us know the missing data, we are doing our best to provide all the data required. Please,find attached the requested documents. - Kachemach Sidewall Cores logs in PDF format for 12.25in section (run 1F&1G) and 8.5in section (run 2C&2D). - Kachemach Sidewall Cores list, including a short description, in PDF format and Excel format. Also,we would like to mention that all these files can be found in the Schlumberger Final logs CD as well as in the CD's delivered.On that last CD,the files should be under the following path:9. Core and SWC>Core summary Excel. I am 2 attaching a screen capture of the CD for visualization purpose. Please, let us know if there is any issue with the CD provided. Name I.NM complet.on report 1.1:Whog:u nermn, ,j„3.Cac•rt.r+ates-SteS•w.er t.Surre.s .4,Slot attcgs ag y 7Shows S!l.Geoprearrs 4.4.Cartsand SW( ¢10.Srmrnary of loge and tarnpks y 11.3er1nmw5.d proclueuen Mats IDST.7LpT,MOT) y 12AST 1f 13.Geoche ocol and Fomn,tionHued Simples SlPemd to doll 4i 15-Geolorca stud % ICVSp 17.Ofhcn l)i 1S.Caetn9ssot If there is anything else it is needed, please don't hesitate to contact us. Again,thanks for your email. Best Regards, Ricard From: Guhl, Meredith D (DOA) [mailto:meredith.guhl@alaska.gov] Sent: Friday, May 16, 2014 7:14 PM To: FERNANDEZ TORRENT, RICARDO; MARTIN VICENTE, ALEJANDRO Cc: Bettis, Patricia K (DOA); Davies, Stephen F (DOA) Subject: Kachemach 1, PTD 211-161, Missing data Dear Ricard and Alejandro: I am completing the final compliance review for Kachemach 1, PTD 211-161, API 50-103-20646-00-00, completed 4/18/2012 and due for public release on 5/18/2014. During my review I have discovered the following data has not been received for this well: 1. Digital data for Schlumberger MSCT-GR Mechanical Sidewall Coring Tool logged on 28-March-2012,from 2800' to 8368'. Please email me the digital data after 5/18. If you have any questions, please contact me. Sincerely, Meredith Meredith Guhl 3 Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission meredith.guhl@alaska.gov Direct: (907) 793-1235 CONFIDENTIALITY NOTICE:This e-mail message,including any attachments,contains information from the Alaska Oil and Gas Conservation Commission(AOGCC),State of Alaska and is for the sole use of the intended recipient(s).It may contain confidential and/or privileged information. The unauthorized review,use or disclosure of such information may violate state or federal law.If you are an unintended recipient of this e-mail, please delete it,without first saving or forwarding it,and,so that the AOGCC is aware of the mistake in sending it to you,contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. LEGAL ADVERTISEMENT: This information is private and confidential and intended for the recipient only.If you are not the intended recipient of this message you are hereby notified that any review,dissemination,distribution or copying of this message is strictly prohibited.This communication is for information purposes only and should not be regarded as an official statement from Repsol.Email transmission cannot be guaranteed to be secure or error-free.Therefore,we do not represent that this information is complete or accurate and it should not be relied upon as such.All information is subject to change without notice. Esta information es privada y confidencial y este dirigida iunicamente a su destinatario.Si usted no es el destinatario original de este mensaje y por este medio pudo acceder a dicha information,por favor,elimine el mensaje.La distribucidn o copia de este mensaje este estrictamente prohibida. Esta comunicaciOn es solo para prop6sitos de information y no deberia ser considerada como una declaration oficial de Repsol.La transmisiOn del correo electrOnico no garantiza que sea seguro o este libre de error.Por consiguiente,no manifestamos que esta informacien sea complete o precise.Toda informacien este sujeta a alterarse sin previo aviso. LEGAL ADVERTISEMENT: This information is private and confidential and intended for the recipient only.If you are not the intended recipient of this message you are hereby notified that any review,dissemination,distribution or copying of this message is strictly prohibited.This communication is for information purposes only and should not be regarded as an official statement from Repsol.Email transmission cannot be guaranteed to be secure or error-free.Therefore,we do not represent that this information is complete or accurate and it should not be relied upon as such.All information is subject to change without notice. Esta informacien es privada y confidencial y este dirigida Unicamente a su destinatario.Si usted no es el destinatario original de este mensaje y por este medio pudo acceder a dicha information,por favor,elimine el mensaje.La distribution o copia de este mensaje este estrictamente prohibida.Esta comunicaciOn es solo para propbsitos de informacien y no deberia ser considerada como una declaracien oficial de Repsol. La transmisiOn del correo electrOnico no garantiza quo sea seguro o este libre de error.Por consiguiente,no manifestamos que esta information sea complete o precise.Toda informacien este sujeta a alterarse sin previo aviso. 4 Guhl, Meredith D (DOA) From: FERNANDEZ TORRENT, RICARDO [rfernandezt@repsol.com] Sent: Monday, May 19, 2014 6:46 AM To: Guhl, Meredith D (DOA); MARTIN VICENTE, ALEJANDRO Cc: Bettis, Patricia K (DOA); Davies, Stephen F (DOA); LEANDRO MACIAS, FERNANDO; ALUJA , JUAN ANDRES Subject: RE: Kachemach 1, PTD 211-161, Missing data Attachments: Kachemach-1 RSWC run 1 F&1 G.pdf; Kachemach-1 RSWC run 2C&2D.pdf; Kachemach-1 Run2C and Run2DMSCT-GR.PDF; Kachemach-1 Runt F_G_MSCTGR.PDF; Kachemach-1 RSWC run 2C&2D.xlsx; Kachemach-1 RSWC run 1F&1G.xlsx Dear Meredith, Thanks for letting us know the missing data,we are doing our best to provide all the data required. Please,find attached the requested documents. 16t6\ - Kachemach Sidewall Cores logs in PDF format for 12.25in section (run 1F&1G)and 8.5in section (run 2C&2D). 2' Kachemach Sidewall Cores list, including a short description, in PDF format and Excel format. Also,we would like to mention that all these files can be found in the Schlumberger Final logs CD as well as in the CD's delivered. On that last CD,the files should be under the following path:9. Core and SWC>Core summary Excel. I am attaching a screen capture of the CD for visualization purpose. Please, let us know if there is any issue with the CD provided. Nam- �e 1.WM templteren report 2.O,41rnq s unman 3.Coad.nates•See Stove) : 3,4.Sur,*. S144 of top* 3,CNIu01cg 3;7.Strews e.Creapreswre 3i 9.Cores and SWC 31 10.5ummar,r of lcgt and samplet ji 11.Summary M peeducerontelt% DST WT.MDT) j 12.DST 13.6ec•chernu al and ivnsreewniWd Samples 141 Derma tv dull j.154eceogrcal tsvdgz jl lb.v5p j:17.Otheas j;18.C4x0,g3s If there is anything else it is needed, please don't hesitate to contact us. Again, thanks for your email. Best Regards, Ricard From: Guhl, Meredith D (DOA) [mailto:meredith.guhl@alaska.gov] Sent: Friday, May 16, 2014 7:14 PM 1 To: FERNANDEZ TORRENT, RICARDO; MARTIN VICENTE, ALEJANDRO Cc: Bettis, Patricia K (DOA); Davies, Stephen F (DOA) Subject: Kachemach 1, PTD 211-161, Missing data Dear Ricard and Alejandro: I am completing the final compliance review for Kachemach 1, PTD 211-161,API 50-103-20646-00-00, completed 4/18/2012 and due for public release on 5/18/2014. During my review I have discovered the following data has not been received for this well: 1. Digital data for Schlumberger MSCT-GR Mechanical Sidewall Coring Tool logged on 28-March-2012,from 2800' to 8368'. Please email me the digital data after 5/18. If you have any questions, please contact me. Sincerely, Meredith Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission meredith.guhl@alaska.gov Direct: (907) 793-1235 CONFIDENTIALITY NOTICE:This e-mail message,including any attachments,contains information from the Alaska Oil and Gas Conservation Commission(AOGCC),State of Alaska and is for the sole use of the intended recipient(s).It may contain confidential and/or privileged information. The unauthorized review,use or disclosure of such information may violate state or federal law.If you are an unintended recipient of this e-mail, please delete it,without first saving or forwarding it,and,so that the AOGCC is aware of the mistake in sending it to you,contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. LEGAL ADVERTISEMENT: This information is private and confidential and intended for the recipient only.If you are not the intended recipient of this message you are hereby notified that any review,dissemination,distribution or copying of this message is strictly prohibited.This communication is for information purposes only and should not be regarded as an official statement from Repsol.Email transmission cannot be guaranteed to be secure or error-free.Therefore,we do not represent that this information is complete or accurate and it should not be relied upon as such.All information is subject to change without notice. Esta informacion es privada y confidencial y este dirigida unicamente a su destinatario.Si usted no es el destinatario original de este mensaje y por este medio pudo acceder a dicha informacion,por favor,elimine el mensaje.La distribucion o copia de este mensaje este estrictamente prohibida.Esta comunicacion es solo para propositos de informacion y no deberia ser considerada como una declaracion oficial de Repsol.La transmision del correo electronico no garantiza que sea seguro o este libre de error.Por consiguiente,no manifestamos que esta informacion sea completa o precisa.Toda informacion este sujeta a alterarse sin previo aviso. 2 Guhl, Meredith D (DOA) From: Decker, Paul L(DNR) Sent: Thursday, May 15, 2014 12:12 PM To: Guhl, Meredith D (DOA) Cc: Davies, Stephen F (DOA); Bettis, Patricia K(DOA) Subject: RE: Kachemach 1, PTD 211-160, Due for release 5/18/2014 Meredith, No,there has been no request for extended confidentiality on the subject well. Thanks, -Paul From: Guhl, Meredith D (DOA) Sent: Thursday, May 15, 2014 8:51 AM To: Decker, Paul L (DNR) Cc: Davies, Stephen F (DOA); Bettis, Patricia K (DOA) Subject: Kachemach 1, PTD 211-160, Due for release 5/18/2014 Hello Paul, Kachemach 1, PTD 211-160,API 50-103-20646-00-00, operated by Repsol E&P USA, is due for release to the public on 5/18/2014. Has confidentiality been extended for this well? Thank you, Meredith Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission meredith.guhl@alaska.gov Direct: (907)793-1235 CONFIDENTIALITY NOTICE:This e-mail message,including any attachments,contains information from the Alaska Oil and Gas Conservation Commission(AOGCC),State of Alaska and is for the sole use of the intended recipient(s).It may contain confidential and/or privileged information. The unauthorized review,use or disclosure of such information may violate state or federal law.If you are an unintended recipient of this e-mail, please delete it,without first saving or forwarding it,and,so that the AOGCC is aware of the mistake in sending it to you,contact Meredith Guhl at 907-793-1235 or meredith.guhl(c,�alaska.gov. 1 RECEIVE® MAY 18 2012 REPlOL AOGCC May 7, 2012 Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage,AK 99501 RE: 10-407 Well Completion Report: Repsol Kachemach#1 PTD 211-161 Dear Commissioner: Repsol hereby submits the 10-407 Well Completion Report for the permanent abandonment of Kachemach#1,permit to drill 211-161. Kachemach#1 was spudded 2/10/2012,and a total depth of 10,156' was reached on 4/8/2012. Final surface abandonment was completed on 4/18/2012. Pertinent information attached to this report includes the following: 1. Form 10-407 Well Completion Report 2. Final Wellbore Schematic 3. Daily Operations Summary 4. Photos of abandonment plate 5. Final Directional Survey Report Additional Geological information will be submitted separately. The AOGCC is requested to treat as confidential all information included. If you have any questions or require additional information,please contact myself at 281- 863-1618,or Michael Quick at 907-334-1576. Sincerely, Bob Jones Drilling Manager Repsol USA I STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la.Well Status: Oil I J Gas ❑ SPLUG ❑ Other ❑ Abandoned ❑✓ Suspended 1b.Well Class: /-5.20(•I"2- 20AAC 25.105 20AAC 25.110 Development ❑ Exploratory Q GINJ ❑ WINJ E WAG ❑ WDSPL❑ No.of Completions: Service ❑ Stratigraphic Test❑ 2.Operator Name: 5.Date Comp.,Susp.,or 12.Permit to Drill Number: REPSOL USA Aband.: 4/18/2012 211-161 / 31z, -p/ 3.Address: 6. Date Spudded: 13.API Number: 2001 Timberloch Place,Suite 3000,Woodlands,TX,77380 2/10/2012 50-103-20646-00-00 4a.Location of Well(Governmental Section): 7.Date TD Reached: 14.Well Name and Number: Surface: 1551'FEL,2265'FNL,Sec.31,T8N,R8E,UM 4/8/2012 Kachemach#1 Top of Productive Horizon: 8.KB(ft above MSL): 444' 15.Field/Pool(s): 1551'FEL,2265'FNL,Sec.31,T8N,R8E,UM GL(ft above MSL): 415' Total Depth: 9. Plug Back Depth(MD+TVD): Wildcat 1551'FEL,2265'FNL,Sec.31,T8N,R8E,UM N/A 4b.Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16.Property Designation: Surface: x- 471669 y- 5851658 Zone- 4 10156/10154' ADL 391420 TPI: x- 471669 y-5851658 Zone- 4 11.SSSV Depth(MD+TVD): 17.Land Use Permit: Total Depth: x--47466 y' I SqQ y-5854658-5.6516,n, Zone- 4 N/A LAS 28269 18.Directional Survey: Yes U No U NW 5-141.14 19.Water Depth,if Offshore: 20.Thickness of Permafrost MD/TVD: (Submit electronic and printed information per 20 AAC 25.050) N/A (ft MSL) 1390'/1390' 21.Logs Obtained(List all logs here and submit electronic and printed information per 20AAC25.071): 22.Re-drill/Lateral Top Window MD/TVD: ZAIT,PPC,DSI,GR,FMI,CMR,PEX,ECS,HNGS,XPT,MSCT,VSI N/A 23. CASING,LINER AND CEMENTING RECORD WT.PER SETTING DEPTH MD SETTING DEPTH TVD AMOUNT CASING FT. GRADE TOP BOTTOM TOP BOTTOM HOLE SIZE CEMENTING RECORD PULLED 20 129 X52/X56 0 111 0 111 26 38 sx Permafrost type L cmt 13-3/8 68/72 L-80 0 2396 0 2396 16 Lead-673 sx/Tail-284 sx 9-5/8 47/53.5 L-80 0 8617 0 8617 12-1/4 lst-880 sx/2nd-320 sx 24.Open to production or injection? Yes No El If Yes,list each 25. TUBING RECORD interval open(MD+TVD of Top&Bottom;Perforation Size and Number): SIZE DEPTH SET(MD) PACKER SET(MD/TVD) RECEIVED26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. Iii"` DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED rTiiir d k i� � MAY 182012 ' _t AOGCC 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,gas lift,etc.): Date of Test: Hours Tested: Production for Oil-Bbl: Gas-MCF: Water-Bbl: Choke Size: Gas-Oil Ratio: Test Period �♦ Flow Tubing Casing Press: Calculated Oil-Bbl: Gas-MCF: Water-Bbl: Oil Gravity-API(corr): Press. 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? Yes ❑ No Q • Sidewall Cores Acquired? Yes Q No❑ If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed).Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 25.071. 76 Sidewall core's were cut. Full report to be submitted by Geology. ABDMS MAY 212012 Form 10-407 Revised 12/2009 - 3/wo �� CONTINUED ON REVERSE Submit original only 29. GEOLOGIC MARKERS (List all formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Well tested? Li Yes U No If yes,list intervals and formations tested, briefly summarizing test results.Attach separate sheets to this form,if needed, Permafrost-Top 0 0 and submit detailed test information per 20 AAC 25.071. Permafrost-Base 1390 1390 Tuluvak/Seabee 4726 4726 Narvaq Fan SS 6951 6951 Torok 7125 7125 HRZ Shale 7752 7752 Kup C 8018 8018 Kup B 8023 8023 J-5 8943 8943 Sag River SS 10045 10045 Shublik 10048 10048 Formation at total depth: 10156 10156 Shublik 31. List of Attachments: Wellbore Schematic,Directional Survey,Daily Operations Summary 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Michael Quick 907-334-1576 Printed Name: ,` 4 /? � Title: 1 I r1/6 N9,/ 6.--/e Ere- Signature: Phone: i676Date: INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 b: Classification of Service wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection,Observation,or Other.Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevations 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 Repsol — Exploration Kachemach #1 REPJUL Confidential Final Schematic ter. All casing strings cut 3' below ground level, abandonment cap in place, cellar removed and dirt replaced 1 \-7\\\\\\\\\��. 1 26" Hole [ ! \''.-:-* *61:,t,-: tsernt` _` I 20" 129#X-52/56 PEB Conductor @ +/-111' MD '�, ` 9-5/8" Cement retainer @ 280' Formation Tops :::: f,.• .-r _6. 4,-hets;�; (TVD ft) cement 9-5/8"Casing punch @ 305' Pumped 26.4 bbl cement below 1390' Base 10.4 ppg retainer and up 9-5/8"x 13-3/8" Permafrost % KWM • • annulus to surface ETOL aa) 2083' -4-- 16" Hole ,- 13-3/8" 72#/68#L-80 BTC Casing @+/- :: �-- 2396' MD (296 bbls ASL lead and 59 bbls @2350' : :: Class G tail—50 bbls returns at surface) ' �: I '-7-- -\,., 9-5/8" Stage Collar at 3011', Calc. TOC @ 1961' (pumped 67 bbls cement w/full , returns) / Tuluvak 4726' ' 10.4 ppg ; I 12-1/4"Hole KWM ,, Calc. TOC @ 6117' (pumped 180.2 bbls , cement w/full returns) : :: I Narvaq SS 6951' i _: I s HRZ 7752' • , : I Kup C 8018' Kup B 8023' ETOC 8253' , ' I i '1:9 bbtscement 9-5/8"Cement retainer i ♦ :i 9-5/8" 53.5#L-80 BTC @ 8522' i f4 #{ cetl` , '� Casing @+/-8617' MD J-5 8943' Sag River 10045' i 10.4 KWMi 8-1/2" Hole Shublik 10048' I I I i TD @ +/-10156' As of 4/18/2012 • REPIOL Kachemach #1 Daily Operations Summary API: 50-103-20646-00-00 Permit #: 211-161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 08 February 2012 Continue Rig Up. John Crisp with AOGCC witnessed diverter test. Continued 0' testing gas detection system. 09 February 2012 Continue Rig Up. Continue troubleshooting gas detection system. 0' 10 February 2012 TD: 315'; Mud Weight: 9.0; Viscosity: 170. Gas detection issues resolved. 315' John Crisp with AOGCC waived witness and planned to do a spot check. P/U BHA and washout conductor pipe from 0'-78'. Spud well and drill from 78'to ° 315'. Circulate and condition mud, L/D cleanout BHA. P/U BHA#1 with LWD/MWD tools. 11 February 2012 TD: 1045'; Mud Weight: 9.0; Viscosity: 170. Finish P/U BHA#1 with 730' LWD/MWD tools,wash and ream from 292'to 315'. Drill from 315'to 1045'. 12 February 2012 TD: 2076'; Mud Weight: 9.7; Viscosity: 83. Drill from 1045'to 1216'. Repair 1031' mud pump#1, drill from 1216'to 2076'. 13 February 2012 TD: 2410'; Mud Weight: 9.7; Viscosity: 68. Drill from 2076'to hole section 334' TD at 2410'. Circulate and condition mud, pump hi vis sweep. Short trip to 1118'. Trip back to bottom and circulate and pump hi vis sweep. TOH to 1022', no issues. L/D BHA#1. 14 February 2012 TD: 2410'. Finish L/D BHA#1. Rig up casing running tools, run 13-3/8"casing ' 0' to set depth at 2396'. Lay down casing tools. Rig up cement equipment. 0)4 15 February 2012 TD: 2410'. Finish rigging up cement equipment. M/U stab in tool, RIH. Stab 4 0' into float collar,establish circulation. M/U cement head and sting back into G float collar, establish circulation, pump mud flush, 296 bbls 10.7 ppg lead cement, 59 bbls 15.8 ppg tail cement,floats held. Had 50 bbls of good cement returns. Rig down cementing equipment. TOH with stab in tool. Begin nipple down of diverter. Kachemach#1 Daily Operations Summary Page 1 16 February 2012 TD: 2410'. Continue nipple down of diverter. Install wellhead and nipple up 0' BOPE. 17 February 2012 TD: 2410'. Finish nipple up BOPE. Dummy test BOPE 250 psi low,5000 psi j�,,l' �e 0' high. Test annular to 250 psi low and 3500 psi high. 18 February 2012 TD: 2410'. Finish dummy test of BOPE. Pick up 5"drill pipe and rack back 0' stands. Waiting on orders. 19 February 2012 TD: 2410'. Continue waiting on orders. Continue picking up 5"drill pipe, 0' racking back stands. 20 February 2012 TD: 2410'. Continue waiting on orders. RIH and circulate out spud mud with 0' 9.4 ppg KCL mud system. TIH and pressure test 13-3/8" casing to 2500 psi, cy) hold for 30 min and chart—good. 21 February 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. TIH and 0' circulate mud. 22 February 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Increase 0' mud weight to 9.7 ppg and continue circulating. 23 February 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 24 February 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 25 February 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 26 February 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 27 February 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 28 February 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 29 February 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 01 March 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. Kachemach#1 Daily Operations Summary Page 2 02 March 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 03 March 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 04 March 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 05 March 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 06 March 2012 TD: 2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 07 March 2012 TD: 2410'. Increased mud weight to 9.8 ppg. Received approval to resume 0' drilling operations. POOH racking back drill pipe. Notified AOGCC for witness of BOPE test. 08 March 2012 TD: 2410'. Rig up to test BOPE. Test BOPE to 250 psi low/5000 psi high-, 0' good.AOGCC witness by Matt Herrera.Test 13-3/8" casing to 2500 psi for 30 minutes—good test. Rig down test equipment. Begin picking up 12-1/4" BHA. 09 March 2012 TD: 2940'; Mud weight: 9.8 ppg; Viscosity: 51.0. Finish picking up 12-1/4" 530' BHA. Trip in hole to 2314' and tag. Drill cement and float equipment to 2410'. Drill from 2410'to 2430'. Perform FIT to 13.0 ppg EMW,`good test. MADD pass from 2267'to 2430'. Drill from 2430'to 2940'. 10 March 2012 TD:4121'; Mud weight: 9.8 ppg; Viscosity: 47.0. Drill from 2940'to 3610'. 1181' Circulate and condition for short trip. Short trip to 2365'—no over pull. Trip in hole to 3419',wash to 3611'. Drill from 3611'to 4121'. 11 March 2012 TD:4951'; Mud weight: 9.8 ppg; Viscosity: 46.0. Drill from 4121'to 4951'. 830' Circulate BU,trip out of hole to 2365'—no over pull. Work to thaw frozen lines to mud loggers unit. Trip in hole to 4281'. 12 March 2012 TD:6278'; Mud weight: 9.8 ppg; Viscosity: 45.0. Continue trip in hole, 1327' took weight at 4317',work through and wash down to 4472',continue to bottom. Drill from 4951'to 6278'. 13 March 2012 TD:6550'; Mud weight: 9.5 ppg; Viscosity: 47.0. Drill from 6278'to 6458', 272' increasing mud weight to 10.0 ppg. Lost returns,work to re-establish returns. Spot 46 bbl LCM pill. Trip out of hole 3 stands,allow pill to soak. Circulate and reduce mud weight to 9.5 ppg and add 30 ppb LCM to system. Wash and rotate from 5717'to 6548', losses at 10-20 bph. Drill from 6548'to 6550', returns diminished, losses at 86 bph.Total losses for the day=540 bbls. Kachemach#1 Daily Operations Summary Page 3 14 March 2012 TD: 6771'; Mud weight: 9.8 ppg. Losses continue, pump 48 bbl LCM pill. Trip 221' out of hole to 6085', losses reduced to 10 bph. Trip in hole, Build and pump additional 10 bbl LCM pill. Drill 6550'to 6675'. Back ream from 6675'to 6540'. MADD pass 6540'to 6580'. Wash and ream to bottom. Drill 6675'to 6771'. Circulate and condition while increasing mud weight to 10.2 ppg. Trip out of hole to 6388'. Circulate and establish loss rate of 100 bph. Total losses for the day=570 bbls. 15 March 2012 TD:7059'; Mud weight: 9.8 ppg; Viscosity: 47.0. Spot 10 bbl LCM pill, slow 288' losses. Drill from 6771'to 7059'. Circulate and condition for POOH. Pull out of hole to 6500' and spot 45 bbl LCM pill. Continue POOH while pumping. 16 March 2012 TD: 7059'; Mud weight: 9.8 ppg; Viscosity: 48.0. Finish pulling out of holeo t�J 0' while pumping due to swabbing. Lay down BHA. Rig up for BOP test. Test UI BOPE 250psi low/5000 psi high-good test. Bob Noble with AOGCC waived witness. 17 March 2012 TD: 7059'; Mud weight: 9.8 ppg; Viscosity: 47.0. Pick up BHA and trip in 0' hole to 6405'. Circulate and condition mud and reduce mud weight from 9.8 ppg to 9.5 ppg. 18 March 2012 TD:7059'; Mud weight: 9.5 ppg; Viscosity: 50.0. Continue circulating mud. 0' Lose signal to LWD. Pull out of hole and lay down BHA. Pick up BHA and trip back in hole. 19 March 2012 TD:7285'; Mud weight: 9.5 ppg; Viscosity: 54.0. Continue trip back in 226' hole. Took weight at 6487'. Wash and ream from 6487'to 6992'. MADD pass from 6962'to 7057'. Drill from 7057'to 7285'. 20 March 2012 TD: 7816'; Mud weight: 9.7 ppg; Viscosity: 50.0. Drill from 7285'to 7534'. 532' Increase mud weight from 9.5 to 9.7 ppg. Drill from 7534'to 7817'. 21 March 2012 TD:8650'; Mud weight: 9.7 ppg; Viscosity: 50.0. Drill 7817'to 8650'. 833' Circulate and condition mud. Spot 30 bbl LCM pill. 22 March 2012 TD:8650'; Mud weight: 9.7 ppg; Viscosity: 60.0. TOOH to 6961'. Back 0' ream from 6961'to 6300'. POOH from 6300'to 5650'. TIH from 5650'to 8650'. Circulate and condition mud. Started losing mud-100 bph. Pump 3- 30 bbl LCM pills. Monitor hole-hole static. 23 March 2012 TD: 8650'; Mud weight: 9.8 ppg; Viscosity: 48.0. TOOH from 8650'to 0' 6600'. Spot 30 bbl LCM pill. TOOH and lay down BHA. Rig up for wireline logs. 24 March 2012 TD:8650'; Mud weight: 9.7 ppg. Run wireline logs. Rig down wireline. Rig 0' up to test BOPE. Test BOPEs,250 psi low and 5000 psi high-good test. AOGCC witness waived by Jeff Jones. Kachemach#1 Daily Operations Summary Page 4 25 March 2012 TD:8650'; Mud weight: 9.7 ppg. Finish testing BOPE. Rig down BOPE test 0' equipment. Rig up for wireline logs. Continue logging program. 26 March 2012 TD:8650'; Mud weight:9.75 ppg. Continue logging program. 0' 27 March 2012 TD:8650; Mud weight:9.75 ppg. Continue logging program. 0' 28 March 2012 TD:8650; Mud weight:9.75 ppg. Finish logging program. Rig down logging 0 equipment. Pick up cleanout BHA. 29 March 2012 TD:8650'; Mud weight: 9.8 ppg. Finish picking up cleanout BHA.TIH to 833' 2378', circulate bottoms up. TIH to 6100', circulate bottoms up. TIH to 8411', wash from 8411'to 8603'. Tight hole from 8443'to 8495'. 30 March 2012 TD: 8650'; Mud weight: 9.75 ppg. Wash from 8603'to 8650',circulate and 0' condition mud, reciprocate and rotate pipe. TOOH, packed off at 8603', increase circulation rate and able to work pipe. Wash and ream from 8603'to 8650',work pipe and circulate. Pump high vis sweep at 8650'. Back ream out of hole from 8650'to 8109'. TOH to 348'. 31 March 2012 TD: 8650'; Mud weight: 9.75 ppg. Lay down cleanout BHA. Change rams 0' from variable to 9-5/8" rams. Pressure test 9-5/8" rams 250 psi low, 5000 psi high—good test. Rig up to run 9-5/8"casing. Run 9-5/8" casing to 1012', , circulate bottoms up. Run casing to 2385'. 01 April 2012 TD: 8650'; Mud weight: 9.7 ppg. Run 9-5/8"casing to 2445',circulate and 0' condition. Run 9-5/8"casing to 4477',circulate and condition. Run 9-5/8" casing to 6079',circulate and condition. Run 9-5/8" casing to 8030'and take weight. Work casing through tight spots to 8610', land casing hanger.Casing shoe set at 8617'. Rig up cementing equipment. Begin pumping cement. 02 April 2012 TD:8650'; Mud weight: 9.7 ppg. Continue with cementing Stage 1, pump 0' 180 bbls 15.8 ppg class G cement, bump plufl,floats held. Shear stage collar at 3000'and pump Stage 2, pump 67 bbls of 15.8 ppg class G cement. Full returns during both stages. Rig down cementing equipment. Install 9-5/8"x 13-3/8" pack off and test to 5000 psi—good test. Change 9-5/8" rams to variable rams. Test BOPE to 250 psi low, 5000 psi high. AOGCC witness waived by Lou Grimaldi. 03 April 2012 TD:8650'; Mud weight:9.75 ppg. Finish testing BOPE—good test. Pick up 0' drilling BHA and TIH. TIH and tag stage collar at 3014'. Continue TIH to 8352'. 04 April 2012 TD:8752; Mud weight: 10.0 ppg. Wash from 8352'to 8514'and tag. 102' Circulate mud to 10.0 ppg. Pressure test 9-5/8"casing to 3000 psi for 30 minutes—good test. Drill shoe track from 8514'to 8619'. Drill rat hole from 8619'to 8650'. Drill 20' new hole to 8670'. POOH to 8630'and RIH,tag up at 8660',work pipe. Perform LOT to 13.78 ppg EMW(1694 psi at surface). Drill from 8670'to 8752'. Begin POOH due to slow ROP. Kachemach#1 Daily Operations Summary Page 5 05 April 2012 TD: 8813'; Mud weight: 10.0 ppg; Viscosity: 47. Finish POOH. Lay down 61' BHA. Pickup BHA and RIH to 8542'. Wash from 8542'to 8752', Madd Pass from 8644'to 8752'. Drill from 8752'to 8813'. 06 April 2012 TD:9500'; Mud weight: 10.0 ppg; Viscosity: 54. Drill from 8813'to 9500'. 687' 07 April 2012 TD: 10093'; Mud weight: 10.4 ppg; Viscosity: 45. Drill from 9500'to 593' 10093'. Increase mud weight from 10.0 ppg to 10.4 ppg. 08 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity:45. Drill from 10093'to 63' 10156',very slow ROP. Circulate and condition mud for logs. TOH from 10156' to 8542', no tight spots. Continue TOH from 8542'to 977'. Lay down BHA. 09 April 2012 TD: 10156'; Mud weight: 10.4 ppg, Viscosity: 47. Finish laying down BHA. 0' Rig up wireline equipment. Complete wireline logging Run#1 and Run#2. 10 April 2012 TD: 10156'; Mud weight: 10.4 ppg. Continue wireline logging Run#3, coring 0' tool jammed, POOH. Rig down wireline equipment. Rig up equipment for BOPE test. Test BOPE 250 psi low and 5000 psi high-good test. AOGCC witness waived by John Crisp. Rig down test equipment. Rig up wireline equipment. 11 April 2012 TD: 10156'; Mud weight: 10.4 ppg. Continue with wireline logging, runs#4, 0' #5, and#6. Rig down wireline equipment. 12 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity: 72. Finish wireline logging. 0' Rig down wireline equipment. AOGCC waived witness of abandonment. RIH with cement retainer on drill pipe. Set retainer at 8522'. Pick up and set down 5K lbs to verify set-good set. Rig up cement equipment and establish (C injectivity rate of 4 bpm. Pump a total of 41 bbls of 15.8 ppg cement, 22 bbls squeezed below the retainer and 19 bbls left on top. Calculated top of cement at 8254'. TOOH to 8146'and circulate,saw 3 bbls of contaminated mud at surface. POOH laying down drill pipe. 13 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity: 54. Continue to lay down 0' drill pipe. Pressure test casing to 1500 psi for 30 min-good test. TIH with bridge plug to 2350'and set. Rig up cement equipment and test bridge plug to 500 psi for 10 minutes-good test. Pump 18.9 bbls 15.8 ppg cement on top of bridge plug. Calculated top of cement at 2083'. TOOH to 1900'and circulate, saw 15 bbls of contaminated mud at surface. POOH. Rig up wireline and RIH with 4 spf perf guns to 305'. Kachemach#1 Daily Operations Summary Page 6 14 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity: 60. Circulate and rig down 0' wireline equipment. RIH with cement retainer on drill pipe. Set retainer at 280', pick up and set down 5K lbs to verify set—good set. Rig up cementing equipment and pump 26.4 bbls 15.8 ppg cement up the 9-5/8"x 13-3/8" annulus (cement to surface)and pump 14.6 bbls cement on top of retainer. Rig down cementing equipment. Begin rigging down rig and equipment. 15 April 2012 TD: 10156'. Nipple down BOPE and continue rigging down rig. 0' 16 April 2012 TD: 10156'. Continue rigging down rig and equipment. 0' 17 April 2012 TD: 10156'. Continue rigging down rig and equipment. Lay down derrick. 0' 18 April 2012 TD: 10156'. Continue rigging down rig and equipment. 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I .N i0 O _U LLe . 6 E '''' c E _ o = Repsol Kachemach#1 Abandonment Photos—PTD 211-161 _ • r, a ',;.k rItor ''. . _ - r € . �.l. ` _ c- - y • J 1 u' J-' . .,te: • .F ,+ ., ` NITS //f' �, =aiF* e , "`! .f• h`. • ' t , • • +4 J }�!d • F ,,t v .., ::%-.4;y.,� ,7"y -~ ;;,v.. a44 - • illild . qk art, •� � '!=''''''4, ;` ,4 , • Repsol Kachemach#1 Abandonment Photos—PTD 211-161 x K Mfifi . T �_ �' A �T - L 4 r a. *Pea• s • Y - ;. ,14.434., fit;` ,,j icrto*,.. ,4* . � Cy-. r . -; .- _ �``.' _ :tea j. �. .h �- r . �.. �,�.•_ * - �. . " a M w /2-.l\-cel REPIOL Repsol Services Company 11116 2001 Timberloch Place,suite 3000 The Woodlands,Texas,77380 CONFIDENTIAL DATA TRANSMITTAL PER AS 38.05.180(8)(C) To: AOGCC(Alaska Oil and Gas Conservation Commission) May 15th,2012 Makana Bender, Natural Resources Technician 333 West 7th Avenue,Suite 100 Anchorage,Alaska 99501 RE: Repsol Lorenzo Villalobos/Juan Aluja jalulav@repsol.com,fax 287-297-1773 2001 Timberloch Place, Suite 3000 The Woodlands,TX,77380 Dear Makana: In the data listed below, Repsol Alaska hereby is submitting the technical information of the well Kachemach-1 following the instructions of the regulation 20 AAC 25071 of the Alaska Oil and Gas Conservation Commission (AOGCC), complying with the period after 30 days of the abandonment of the well: 1 BINDER List of formations and geological markers 1 hardcopy Summary list of logs performed and depth logged interval 1 hardcopy Summary and Field Report of Sidewall Cores 1 hardcopy XPT summary 1 hardcopy Sample shipping manifest 1 hardcopy 1 DVD Includes a digital copy of all documents listed above,and: Mudlog composite plot Final Copy of the Mudlogging data Final Copy of the Logging While Drilling data Final Copy of the Wireline 12.25" and 8.5" Open Hole data In the Box Final Copy of the Mudlogging data 1 Set in Hardcopy Final Copy of the Logging While Drilling data 1 Set in Hardcopy Final Copy of the Wireline 12.25" and 8.5" Open Hole data 1 Set in Hardcopy Please acknowledge receipt by signing and returning a copy of the transmittal letter to the attention of Repsol, Lorenzo Villalobos/Juan Aluja,2001 Timberloch Place,Suite 3000,The Woodlands,TX, 77380. Please acknowledge receipt by signing and returning a copy of the transmittal letter(by postal mail,email or fax) to the attention of Repsol, Lorenzo Villalobos/Juan Aluja, 2001 Timberloch Place,Suite 3000,The Woodlands,TX, 77380. Date: bubo L't. Signed: /Gu6,-14 CC: Roberta Camuffo Chris Hyek— Kurt Albaugh r Repsol Services Company REPJOL 2001 Timberloch Place,Suite 3000 RECEIVEDThe Woodlands,Texas,77380 APR 29 2013 To: AOGCC(Alaska Oil and Gas Conservation Commission) Makana Bender,Natural Resources Technician ®��� 333 West 7`h Avenue,Suite 100 Anchorage,Alaska 99501 RE: REPSOL Lorenzo Villalobos/Juan Aluja jalujav@repsol.com,FAX 287-297-1773 2001 Timberloch Place,Suite 3000 The Woodlands,TX,77380 Dear Makana, In the data listed below, Repsol Alaska hereby is submitting the technical information of the well Kachemach-1 following the instructions of the regulation 20 AAC 25071 of the Alaska Oil and Gas Conservation Commission (AOGCC). 1 DVD f Z,� (,"I1 Includes digital copy of all documents listed below CT Scans Fresh State Core Analysis White Light Photographs Pilot Study for Cleaning and Drying Routine Rock Properties Analysis Thin Section Description X-ray Diffraction Total Organic Carbon Pyrograms Vitrinite Reflectance Please acknowledge receipt by signing and returning a copy of the transmittal letter (by postal mail, email or fax) to the attention of Repsol, Lorenzo Villalobos/Juan Aluja, 2001 Timberloch Place, Suite 3000,The Woodlands,TX, 77380. Litt j Date alp1 3 Signed: CC: Roberta Camuffo Schlumberger REPlOL Drilling&Measurements 2525 Gambell Street.Suite 400 Anchorage AK 99503 Tel(907)273-1700 Fax(907)561-8317 Date: 12-Apr-2012 Well Name: Kachemach-1 Company: Repsol API Number: 50-103-206-46-00-00 AFE Number: NS 11 002 K 1 Location: X=471668.944 US Feet; Y=5851657.987 US Feet Field: North Slope Rig: Nabors 9ES Drilling and Measurements Field Support: Operations Manager Mario Pepe Drilling Service Manager Brian Muzny Drilling and Measurements Field Crew: Cell Manager Arina Fell Cell Engineers Moody Farrag Jacqueline Gazineu Elena Greblova David Koseluk Eric Pennington Daniel Rood SERVICES PROVIDED Services Services Dates Depth Intervals Directional Survey Service 11-Feb-12 to 09-Apr-12 0.00 feet to 10156 feet Directional Drilling 11-Feb-12 to 09-Apr-12 0.00 feet to 10156 feet VISION (Resistivity,Gamma Ray) 11-Feb-12 to 09-Apr-12 42.00 feet to 10156 feet APWD 11-Feb-12 to 09-Apr-12 42.00 feet to 10156 feet OPERATING STATISTICS , Total MWD Pumping Time: 335.11 hours Total LWD Pumping Time: 335.11 hours Total MWD Time Below Rotary: 533.33 hours Total LWD Time Below Rotary: 533.33 hours Total MWD Depth Interval: 10156 feet Total LWD Depth Interval: 10114 feet Total MWD Runs: 6 Total LWD Runs: 6 JOB PERFORMANCE Directional The final MWD survey point was located at 10156.34 feet with an inclination of 2.37 degrees and an azimuth of 351.24 degrees. This direction and inclination was projected from the final survey point to TD. 1 SII — / Gl Schlumberger REPlOL IMMO Formation Evaluation 16 inch surface Section The surface section was drilled from 314 to 2410 feet in one run. A motor was used for directional control. A TeleScope was used for surveying. VISION* Service Resistivity, Gamma Ray, and APWD were also supplied in real- time and from memory once the tools were retrieved. After the surface hole was drilled, 13 3/8 inch casing was set. The final measured bottom hole temperature was 60.8 degrees Fahrenheit. 12-1/4 inch Intermediate Section The intermediate section was drilled from 2410 to 8650 feet in three runs.After the first run in this hole section had to pull out of hole to test BOP. After the second run in this section, pulled out of the hole because of MWD tool (TeleScope) failure — jammed modulator due to excessive LCM in mud system. A motor was used for directional control. VISION* Service Resistivity, Gamma Ray, and APWD (for ECD and hole cleaning),were supplied in real-time and from memory once the tools were on surface. After completing this section,9 5/8 inch casing was set. The final measured bottom hole temperature was 127.4 degrees Fahrenheit. 8-1/2 inch Production Section: The production section of the well was drilled in 2 runs from 8650 feet to 10156 feet MD to TD—due to bit trip to pick up a roller cone bit. A motor was used for directional control during this hole section. VISION* Service Resistivity, Gamma Ray,and APWD were supplied in real-time and from memory once the tools were retrieved. The final measured bottom hole temperature was 177.8 degrees Fahrenheit. Schlumberger Oilfield Services — Drilling & Measurements appreciates the opportunity to provide Repsol with MWD and LWD services. Sincerely, Arina Fell MWD/LWD Engineer Schlumberger Drilling&Measurements 2 Schiumberger Drilling &Measurements MWD/LWD Log Product Delivery Customer Alaska Oil and Gas Dispatched To: Howard Okland Conservation Commission Well No Kachemach-1 Date Dispatched: 20-Apr-12 Installation/Rig Nabors 9ES Dispatched By: Brian Muzny Data No Of Prints No of CDs Kachemach 1 Logs: 1 ✓ / 1 2 in MD 1 2inTVD 1 5inMD 1 ' 5inTVD 1 6 rr\\� Received By: ( OJ Please sign and return one copy to: O&M,2525 Gambell Street,Suite 400 2 `l 1 D— Anchorage,Alaska 99503 1 ( �C muznyl @slb.com Brian Muzny Fax:907-561-8367 • a _ Memo Date: 4/19/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Michael Quick RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#: 211-161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 12 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity: 72. Finish wireline logging. 0' Rig down wireline equipment. AOGCC waived witness of abandonment. RIH with cement retainer on drill pipe. Set retainer at 8522'. Pick up and set down 5K lbs to verify set—good set. Rig up cement equipment and establish injectivity rate of 4 bpm. Pump a total of 41 bbls of 15.8 ppg cement, 22 bbls ✓ squeezed below the retainer and 19 bbls left on top. Calculated top of cement at 8254'. TOOH to 8146'and circulate,saw 3 bbls of contaminated mud at surface. POOH laying down drill pipe. 13 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity: 54. Continue to lay down 0' drill pipe. Pressure test casing to 1500 psi for 30 min—good test. TIH with bridge plug to 2350'and set. Rig up cement equipment and test bridge plug to v- 500 500 psi for 10 minutes—good test. Pump 18.9 bbls 15.8 ppg cement on top of bridge plug. Calculated top of cement at 2083'. TOOH to 1900'and circulate, saw 15 bbls of contaminated mud at surface. POOH. Rig up wireline and RIH with 4 spf perf guns to 305'. 14 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity: 60. Circulate and rig down 0' wireline equipment. RIH with cement retainer on drill pipe. Set retainer at 280', pick up and set down 5K lbs to verify set—good set. Rig up cementing equipment and pump 26.4 bbls 15.8 ppg cement up the 9-5/8"x 13-3/8" annulus(cement to surface)and pump 14.6 bbls cement on top of retainer. Rig down cementing equipment. Begin rigging down rig and equipment. 15 April 2012 TD: 10156'. Nipple down BOPE and continue rigging down rig. 0' 16 April 2012 TD: 10156'. Continue rigging down rig and equipment. 0' 17 April 2012 TD: 10156'. Continue rigging down rig and equipment. Lay down derrick. 0' 18 April 2012 TD: 10156'. Continue rigging down rig and equipment. Cut and remove casing 0' and wellhead and install well name plate. Regg, James B (DOA) P Z 1 < 61 G From: Rick Brumley[runawaygpl@yahoo.com Sent: Wednesday, April 18, 2012 9:55 PM ] ' `��� c� To: lantzdg2@gmail.com; Regg, James B (DOA); Quick Michael J.; larryburns101@gmail.com Subject: K-1 Well Cap Photos Attachments: DSC_0209.jpg; DSC_0213.jpg; DSC_0214.jpg ✓ Gents, Attached are photos of the well cap on Kachemach 1. Job was completed at 2100 hrs on 4-18- - 12. Please advise if you need additional information. There will be two additional photos to follow. Thanks, Rick Brumley Consultant (ASRC) Kachemach 1 (907) 685-1960 Office (907) 232-5709 1 Regg, James B (DOA) Pit Z t U t(ice From: Rick Brumley[runawaygp1 @yahoo.com] Sent: Wednesday, April 18, 2012 9:57 PM �er' 4 Itg1 l z To: Regg, James B (DOA); lantzdg2@gmail.com; Quick Michael J.; larryburns101@gmail.com Subject: K-1 Additional Photos Attachments: DSC_0216.jpg; DSC_0220.jpg Surface Abandonment—Kachemach#1 (Repsol) PTD 2111610 Photos courtesy of Repsol April 18, 3012 Surface abandonment of Kachemach #1; AOGCC waived witness. • • M« '`• vi yam Casing cut-off ` • A j. 7- • • • Po 3/ ' ' ' Page 2 of 2 • aRa. ``- Casing cut-off 0.0 t . Cement to surface — J '• >' • • Marker plate Kachemach#1 Surface Abandonment 4-18-12 Kat-aekt4ck '�l Regg, James B (DOA) Pr6 24/40 From: Rick Brumley[runawaygp1@yahoo.com] � Sent: Friday, April 13, 2012 6:17 AM cert 4 J 13/(7_ To: Regg, James B (DOA); lantzdg2@gmail.com Subject: K-1 9 5/8" Casing Test 4-13-12 Attachments: DSC_0203.JPG Jim, Attached is a photo of the chart for the 9 5/8" and cement plug @ 8522'. We tested at 1500 psi for 30 minutes and it held steady. Thanks, Rick Brumley 1 T, 9 F " ISM . . 00ll/ : ,g i ' u. . /'� �"' e pfj(7z�. y /� _ 2: TT >ci \ \ i `; - -4r;;;' ; ; -,,,- : ;„ ,,, ., .,.. ., ,,, ..,„, ,„, .. _ ___:. _ ,__ : ,,, --;..\N -‘-;,,, ,.o .x / \ �-- -000 �-- / / • • -;; \ ; : : / --c,,,, \ ''--, \ ' ,;„ �o , ,• , i �rA ,• d� • / Qo• � soot � / 'Y. •/ a - A . / . - /.- \ :: 5000 V / 1 1V '' ' :;.41k.: ''>--- —' : ------T.- ''' '' '.i A.. 0, it Memo Date: 4/12/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Michael Quick RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#:211-161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 05 April 2012 TD:8813'; Mud weight: 10.0 ppg; Viscosity: 47. Finish POOH. Lay down 61' BHA. Pickup BHA and RIH to 8542'. Wash from 8542'to 8752', Madd Pass from 8644'to 8752'. Drill from 8752'to 8813'. 06 April 2012 TD:9500'; Mud weight: 10.0 ppg; Viscosity: 54. Drill from 8813'to 9500'. 687' 07 April 2012 TD: 10093'; Mud weight: 10.4 ppg; Viscosity: 45. Drill from 9500'to 10093'. 593' Increase mud weight from 10.0 ppg to 10.4 ppg. 08 April 2012 TD: 10156'; Mud weight: 10.4 ppg; Viscosity:45. Drill from 10093'to 63' 10156',very slow ROP. Circulate and condition mud for logs. TOH from 10156' to 8542', no tight spots. Continue TOH from 8542'to 977'. Lay down BHA. 09 April 2012 TD: 10156'; Mud weight: 10.4 ppg, Viscosity: 47. Finish laying down BHA. 0' Rig up wireline equipment. Complete wireline logging Run#1 and Run#2. 10 April 2012 TD: 10156'; Mud weight: 10.4 ppg. Continue wireline logging Run#3, coring 0' tool jammed, POOH. Rig down wireline equipment. Rig up equipment for BOPE test. Test BOPE 250 psi low and 5000 psi high—good test. AOGCC witness waived by John Crisp. Rig down test equipment. Rig up wireline equipment. 11 April 2012 TD: 10156'; Mud weight: 10.4 ppg. Continue with wireline logging, runs#4, 0' #5,and#6. Rig down wireline equipment. , SITATE (IF ALMIELI-1 SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 Bill Hardman Operations Manager Repsol USA 2001 Timberloch Place, Suite 3000 ca,( I -- I b I The Woodlands, TX 77380 Re: Wildcat Field, Wildcat Pool, Kachemach #1 Sundry Number: 312-146 Dear Mr. Hardman: Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, & fi951 ' 4 -- Cathy V Foerster Chair DATED this r day of April, 2012. Encl. April 10,2012 Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage,AK 99501 RE: 10-403 Sundry for Permanent Abandonment: Repsol Kachemach#1 PTD 211-161 Dear Commissioner: Repsol hereby submits an Application for Sundry Approvals for the permanent abandonment of Kachemach#1,permit to drill 211-161. Kachemach#1 was spudded 2/10/2012, and a total depth of 10,156' was reached on 4/8/2012. . The abandonment procedure is attached with the form 10-403 sundry application. An LWD log for the well was reviewed with Mr. Guy Schwartz and Mr. Steve Davies on 4/10/12; and unfortunately, commercial hydrocarbon zones were not present below the . intermediate casing point of 8,617'. The abandonment procedure takes this into account, and Repsol plans to follow 20 AAC 25.112 (g)(1) for tagging requirements for each plug, by placing weight on the cement retainer/bridge plug prior to placing cement on top of the plug. Pertinent information attached to this application includes the following: 1. Form 10-403 Application for Sundry Approvals—2 copies 2. Abandonment Procedure 3. Current Wellbore Schematic 4. Proposed Abandonment Wellbore Schematic The AOGCC is requested to treat as confidential all information included. • If you have any questions or require additional information,please contact Bob Jones, Drilling Manager at 281-863-1618, myself at 281-297-1176, or the technical contacts contained in the following pages. Sincerely, Bill Hardham Operations Manager Repsol USA RECEIVED STATE OF ALASKA APR 10 2012 ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS AOGCC 20 AAC 25.280 1.Type of Request: Abandon Q . Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Change Approved Program ❑ Suspend❑ Plug Perforations❑ Perforate❑ Pull Tubing❑ Time Extension ❑ Operations Shutdown❑ Re-enter Susp.Well❑ Stimulate❑ Alter Casing 0 Other: 0 2.Operator Name: 4.Current Well Class: 5.Permit to Drill Number: REPSOL USA Development ❑ Exploratory Q 211-161 . 3.Address: Stratigraphic 0 Service ❑ 6.API Number: 2001 Timberloch Place,Suite 3000,Woodlands,TX,77380 50-103-20646-00-00 i 7.If perforating,closest approach in pool(s)opened by this operation to nearest 8.Well Name and Number: property line where ownership or landownership changes: Spacing Exception Required? Yes ❑ No ❑r Kachemach#1 • 9.Property Designation(Lease Number): 10.Field/Pool(s): ADL 391420 • Wildcat . 11. PRESENT WELL CONDITION SUMMARY Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD(ft): Effective Depth TVD(ft): Plugs(measured): Junk(measured): 10156 10154 10156 10154 Casing Length Size MD TVD Burst Collapse Structural Conductor 82 20 111 111 Surface 2367 13-3/8 2396 2396 5380 2260 Intermediate 8588 9-5/8 8617 8617 7930 6620 Production Liner Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): Packers and SSSV Type: Packers and SSSV MD(ft)and TVD(ft): 12.Attachments: Description Summary of Proposal El 13.Well Class after proposed work: Detailed Operations Program 0 BOP Sketch ❑ Exploratory Q • Development ❑ Service ❑ 14.Estimated Date for 15.Well Status after proposed work: 4/13/2012 Commencing Operations: Oil 0 Gas ❑ WDSPL ❑ Suspended ❑ 16.Verbal Approval: Date: WINJ ❑ GINJ 0 WAG ❑ Abandoned ❑✓ • Commission Representative: GSTOR ❑ SPLUG ❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Michael Quick 907-334-1576 Printed Name Bill Hardham _ Title Operations Manager Signature N,( j Phone 281-297-1176 Da�tet /Ln, `� 1 f L COMMISSION USE ONLY ‘ i �/ Conditions of approval: Notify Commission so that a representative may witness Sundry Number: 31 Z-I (.1 �(..J Plug Integrity i BOP Test 0 Mechanical Integrity Test 0 Location Clearance n"~".1.,_ ZcD/Z Other: /64-) -ri-tye-eJex — 4.,, do e1„,,... <cis. c -- Cir t F 1.4) LI Je. e 6 r Subsequent Form Required: f b-Li 0"7__ V //07 APPROVED BY Approved by: �����C ` COMMISSIONER THE COMMISSION Date: 4.-1 a —/� I A;,/,,z Ft..,iv ,40 Form 10-403RE3Revised APR 13 2012 1+1( D Submit in Duplicate '� JRIGINAL � REPSOL USA Kachemach#1 P&A Procedure(PTD 211-161) • 1. Notify regulatory agencies 24 hours prior to commencing abandonment operations. 2. Pick up 9-5/8"Cement Retainer and RIH on drill pipe. 3. Set 9-5/8" Cement Retainer at 8522'. Pull up and sit back down with 5K lbs on retainer to verify set. (per 20 AAC 25.112 (g) (1)) C-14.-Albe"1- 4. Rig up cementers and test lines to 4000 psi. LL 5. Sting into retainer and squeeze 21.9 bbls(250')cement below retainer. T T� /yob /. 6. Un-sting from Retainer and spot 17.6 bbls (250')cement on top of retainer. POOH 1 joints and circulate DP clean. POOH. / /�of 6-1 J k s•p t r'Z'r 7. Pick up 9-5/8" Bridge Plug on drill pipe and RIH to 2350'. et Bridge Plug. Pull up and sit back down with 5K lbs on bridge plug to verify set. (per 20 AAC 25.112 (g) (1)) 8. Spot 17.6 bbls(250')cement on top of bridge plug. POOH 12 joints and circulate DP clean. POOH. j/L.v": C ire. 9. RU Wireline. RIH with casing punch guns and punch 9-5/8"casing at 305'. RD Wireline. 10. Pick up 9-5/8"Cement Retainer on drill pipe and RIH to 280'. Set retainer. Pull up and sit back down with 5K lbs on retainer to verify set. (per 20 AAC 25.112(g) (1)and (d)(1)(A)) 11. Sting into retainer and establish circulation at 200 gpm rate up the 9-5/8"x 13-3/8" annulus. 12. Pump cement down drill pipe and up the 9-5/8"x 13-3/8" annulus until cement is seen at surface. (annular volume 14.5 bbls) 13. Un-sting from retainer and spot 17.6 bbls(250')cement on top of retainer. POOH. 14. WOC. 15. Nipple down BOP and Cut off Wellhead. /' L-- -'i ni©i-i t -Lots e dZi R �'°+1^-9 - 16. R/D and move off drilling rig. P 17. Cut off all casing strings(20", 13-3/8"and 9-5/8")at least 3 feet below original ground level (per 20 AAC 25.170). 18. Weld a 20"cap onto the casing stub with required well identification information (per 20 AAC 25.120). 19. Take photos of the welded 20"cap. se"- 20. 20. Remove cellar and back fill cellar hole. Take photos of mound. Repsol — Exploration • Kachemach #1 REPlOL Confidential ' Current Wellbore Schematic IPu tf 26" Hole i � %,, i I I E % 5 i 20" 129#X-52/56 PEB Ii 5 5 5I Conductor @ +/-111' MD 4 5 Formation Tops I:: ; 5 5' I (TVD ft) 116" Hole 1170' Base II13-3/8" 1:: ; ; : ::I Casing Cemented to Surface w/50 Permafrost I:: - bbls cement returns at surface(pumped Ii: , %, 5 I 296 bbls ASL lead and 59 bbls Class G tail) I: `5:: 5 s.,. ..: :: '; :;: I :; ' , f: & I — 13-3/8" 72#/68# L-80 BTC ,: 1 Casing @ +1-2396' MD y 9-5/8" Stage Collar at 3011', Calc. TOC @ 1961' (pumped 67 bbls cement w/full I f I Tuluvak 4225' • I 5 i returns) I 5 I 5 S 5 I ' , 14 12-1/4" Hole I I I 5 i Calc. TOC @ 6117' (pumped 180.2 bbls 5:•: 1 cement w/full returns) s::: l Top of Hydrocarbon Narvaq SS 6826' 5::: 1 %. Zone 6727' ., 5 .. 5 5:: 5: : 1 5 5::::1 :5 i::: HRZ 7750' ':: 5.:. 5 i::: Kup B 8020' 5: 5 S::: I ;. I : 5:;: 1 ';, I 9-5/8" 53.5#L-80 BTC 1% ~ Casing @+/- 8617' MD • • No Hydrocarbon Zones I I J-5 8925' below 8600' I I 1 1 8-1/2" Hole Sag River 10050' 1 I TD @ +/-10156' • Quick 4/1 0/12 Repsol — Exploration Kachemach #1 REPlOL Confidential Proposed P&A Schematic immem. Cut off all casing strings 3' below ground level,weld on abandonment cap, remove cellar and mound with dirtI i 26" Hole Casing punch 9-5/8" t i casing at 305', Set 9- I: I 20" 129#X-52/56 PEB 5/8" Cement retainer ♦. Conductor @ +/-111' MD @ 280', circulate ` NW\' � _] -:1 cement to surface in — 9-5/8"x 13-3/8" 1'•: ;1 16" Hole I::: : ::it annulus, unsting and I: : • c;:1 spot 250'cement(to i • 10.4 ppg i : i 13-3/8" Casing Cemented to Surface w/50 surface)on top of I::; KWM 1 ''�I-- bbls cement returns at surface (pumped retainer is : : :1 296 bbls ASL lead and 59 bbls Class G tail) Set 9-5/8" CIBP @ I :;d6 - di.il 13-3/8" 72#/68# L-80 BTC 2350', spot 250' 1 Casing @ +/-2396' MD ,IilIN cement plug on top of 011 bridge plug i $ I 9-5/8" Stage Collar at 3011', Calc. TOC @ 1 1961' (pumped 67 bbls cement w/full 1 y I returns) � I I I , I I I 10.4 ppg I 12-1/4" Hole KWM I I Calc. TOC @ 6117' (pumped 180.2 bbls :i: cement w/full returns) i:i ri: Top of Hydrocarbon ::: ,! ; 1 Zone 6727' ` I :, i:: i:i i t: : i i I ::: i ::: i ::• : i ::: i : : i Set 9-5/8"Cement I::: $ I retainer @ 8522', I:::, I squeeze 250'cement I A . 9-5/8" 53.5#L-80 BTC below retainer, spot I:i , ♦ Imo--- 250'cement on top of �A' \� Casing @+/- 8617' MD retainer 1 I 10.4 ppg 1 8-1/2" Hole No Hydrocarbon Zonesl 1 ✓ below 600' I KWM I brews' i I TD @ +/-10156' 60- (cs . `•` '7-- Quick 4/10/12 Memo Date: 4/05/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Michael Quick RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#: 211-161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 29 March 2012 TD:8650'; Mud weight: 9.8 ppg. Finish picking up cleanout BHA.TIH to 833' 2378',circulate bottoms up. TIH to 6100',circulate bottoms up. TIH to 8411', wash from 8411'to 8603'. Tight hole from 8443'to 8495'. 30 March 2012 TD:8650'; Mud weight: 9.75 ppg. Wash from 8603'to 8650',circulate and 0' condition mud, reciprocate and rotate pipe. TOOH, packed off at 8603', increase circulation rate and able to work pipe. Wash and ream from 8603'to 8650',work pipe and circulate. Pump high vis sweep at 8650'. Back ream out of hole from 8650'to 8109'. TOH to 348'. 31 March 2012 TD: 8650'; Mud weight: 9.75 ppg. Lay down cleanout BHA. Change rams 0' from variable to 9-5/8" rams. Pressure test 9-5/8" rams 250 psi low,5000 psi high—good test. Rig up to run 9-5/8"casing. Run 9-5/8"casing to 1012', circulate bottoms up. Run casing to 2385'. 01 April 2012 TD:8650'; Mud weight: 9.7 ppg. Run 9-5/8"casing to 2445',circulate and 0' condition. Run 9-5/8"casing to 4477',circulate and condition. Run 9-5/8"casing to 6079',circulate and condition. Run 9-5/8"casing to 8030' and take weight. Work casing through tight spots to 8610', land casing hanger.Casing shoe set at 8617'. Rig up cementing equipment. Begin pumping cement. 02 April 2012 TD:8650'; Mud weight: 9.7 ppg. Continue with cementing Stage 1, pump 180 0' bbls 15.8 ppg class G cement, bump plug,floats held. Shear stage collar at 3000' and pump Stage 2, pump 67 bbls of 15.8 ppg class G cement. Full returns during both stages. Rig down cementing equipment. Install 9-5/8"x 13-3/8" i I pack off and test to 5000 psi—good test. Change 9-5/8" rams to variable rams. Test BOPE to 250 psi low,5000 psi high. AOGCC witness waived by Lou Grimaldi. 03 April 2012 TD:8650'; Mud weight:9.75 ppg. Finish testing BOPE—good test. Pick up 0' drilling BHA and TIH. TIH and tag stage collar at 3014'. Continue TIH to 8352'. 04 April 2012 TD:8752; Mud weight: 10.0 ppg. Wash from 8352'to 8514' and tag. Circulate 102' mud to 10.0 ppg. Pressure test 9-5/8"casing to 3000 psi for 30 minutes—good test. Drill shoe track from 8514'to 8619'. Drill rat hole from 8619'to 8650'. Drill 20' new hole to 8670'. POOH to 8630'and RIH,tag up at 8660',work pipe. Perform LOT to 13.78 ppg EMW(1694 psi at surface). Drill from 8670'to 8752'. Begin POOH due to slow ROP. Page 1 of 1 Schwartz, Guy L (DOA) From: Quick, Michael J. [Michael.Quick@asrcenergy.com] Sent: Wednesday, April 04, 2012 2:57 PM To: Schwartz, Guy L (DOA) Cc: JONES, ROBERT; ysa, rick(ext); Dial, Amanda; morris, dave (ext); angelette, lowell (ext) Subject: PTD 211-161 Kachemach#1 LOT Attachments: Kachemach 1 PTD 211-161 LOT Apr 4 2012 9 625 casing.xls Guy— Per our discussion, on the Kachemach#1 well, PTD 211-161, Repsol had planned a FIT at the intermediate (9-5/8") casing shoe to a 15.0 ppg EMW. With the 9-5/8" casing shoe set at 8618', and new formation drilled to 8670' (TD for the section was 8650'),with a 10.0 ppg mud weight in the hole,we achieved a Leak Off Test of 13.78 ppg EMW(see attached spreadsheet). The casing test was good at the planned 3000 psi, and was charted for 30 minutes. Repsol is comfortable drilling ahead with this LOT, as our minimum acceptable LOT/FIT value was 13.0 ppg EMW for adequate kick tolerance. Please let me know if you have any questions or need more information. Best regards, Mike Michael Quick Drilling Engineering Team Lead I REPSOL Exploration ASRC Energy Services E&P Technology, Inc. 3900 C Street, Suite 702 Anchorage,AK 99503 Desk: 907-334-1576 I Cell: 907-317-2969 4/4/2012 CASING AND LEAK-OFF FRACTURE TESTS Well Name: K-1 Date: Apr 4 2012 Csg Size/Wt/Grade: 9 5/8' 47#/ 53.5# Supervisor: Morris/Walls Csg Setting Depth: 8618 TMD 8618 TVD Mud Weight: 10 ppg LOT!FIT Press= 1694 psi LOT/FIT= 13.78 ppg Hole Depth= 8670 and Fluid Pumped= 7.6 Bbls Volume Back= 0.3 bbls Estimated Pump Output: 0.084 Barrels/Stroke LOT/ FIT DATA CASING TEST DATA Enter Strokes Enter Pressure Enter Strokes Enter Pressure Here Here Here Here -> 0 40 -> 0 10 -> 5 55 -> 5 107 -> 10 199 -> 10 310 -> 15 390 -> 15 525 -> 20 609 -> 20 721 -> 25 781 -> 25 896 -> 30 952 -> 30 1074 -> 35 1139 -> 35 1273 -> 40 1326 -> 40 1464 -> 45 1518 -> 45 1663 -> 50 1694 -> 50 1870 -> 55 1836 -> 55 2071 -> 60 1919 -> 60 2297 -> 65 1938 -> 65 2510 -> 70 1941 -> 70 2722 -> 75 1936 -> 75 2932 -> 80 1932 -> 80 3148 J -> 85 1928 -> Enter Holding Enter Holding Enter Holding Enter Holding Time Here Pressure Here Time Here Pressure Here -> 0 1928 -> 0 3148 -> 2 1826 -> 2 3125 -> 4 1820 -> 4 3120 -> 6 1808 -> 6 3100 -> 8 1800 -> 8 3100 -> 10 1800 -> 10 3100 -> a f LOT/FIT DATA -M—CASING TEST DATA 4000 3900 3800 3700 3600 3500 3400 3300 -- — 3200 3100 3000 2900 2800 2700 2600 2500 2400 2300 2200 a 2100 • 2000 cn m 1900 ` 1800 }�{ 1700 �� ire# 1600 • / ,tu 1500 l°PPa x g`/W ,are- = �!T sr JO 9c 1400 70-3 1300 6l b'1rse; 1200 1100 1000 900 /3.S'f/d.Ej1't" 800 700 600 -41 500 z 400 300 200 / 100 0 0 10 20 30 40 50 60 70 80 90 Strokes(#of) —U—LOT/FIT DATA f CASING TEST DATA 4000 3900 3800 3700 3600 3500 3400 3300 3200 3100 Ui i ■ 3000 2900 2800 2700 2600 2500 2400 2300 2200 & 2100 2000 1900 1800 ❑ ❑ 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 — 0- 0 5 10 15 20 25 30 Time(Minutes) Memo Date: 3/29/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Tim Flynn RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#:211-161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 21 March 2012 TD:8650'; Mud weight: 9.7 ppg; Viscosity: 50.0. Drill 7817'to 8650'. 833' Circulate and condition mud. Spot 30 bbl LCM pill. 22 March 2012 TD:8650'; Mud weight: 9.7 ppg; Viscosity: 60.0. TOOH to 6961'. Back ream 0' from 6961'to 6300'. POOH from 6300'to 5650'. TIH from 5650'to 8650'. Circulate and condition mud. Started losing mud—100 bph. Pump 3-30 bbl LCM pills. Monitor hole—hole static. 23 March 2012 TD:8650'; Mud weight: 9.8 ppg; Viscosity: 48.0. TOOH from 8650'to 6600'. 0' Spot 30 bbl LCM pill. TOOH and lay down BHA. Rig up for wireline logs. 24 March 2012 TD:8650'; Mud weight: 9.7 ppg. Run wireline logs. Rig down wireline. Rig up 0' to test BOPE. Test BOPEs, 250 psi low and 5000 psi high—good test. AOGCC witness waived by Jeff Jones. 25 March 2012 TD:8650'; Mud weight: 9.7 ppg. Finish testing BOPE. Rig down BOPE test 0' equipment. Rig up for wireline logs. Continue logging program. 26 March 2012 TD:8650'; Mud weight: 9.75 ppg. Continue logging program. 0' 27 March 2012 TD:8650; Mud weight:9.75 ppg. Continue logging program. 0' 28 March 2012 TD:8650; Mud weight:9.75 ppg. Finish logging program. Rig down logging 0 equipment. Pick up cleanout BHA. Memo Date: 3/21/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Tim Flynn RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#: 211-161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 15 March 2012 TD:7059'; Mud weight: 9.8 ppg; Viscosity: 47.0. Spot 10 bbl LCM pill,slow 288' losses. Drill from 6771'to 7059'.Circulate and condition for POOH. Pull out of hole to 6500' and spot 45 bbl LCM pill. Continue POOH while pumping. 16 March 2012 TD:7059'; Mud weight: 9.8 ppg; Viscosity: 48.0. Finish pulling out of hole 0' while pumping due to swabbing. Lay down BHA. Rig up for BOP test. Test BOPE 250psi low/5000 psi high—good test. Bob Noble with AOGCC waived witness. 17 March 2012 TD:7059'; Mud weight: 9.8 ppg; Viscosity: 47.0. Pick up BHA and trip in 0' hole to 6405'. Circulate and condition mud and reduce mud weight from 9.8 ppg to 9.5 ppg. 18 March 2012 TD:7059'; Mud weight: 9.5 ppg; Viscosity: 50.0. Continue circulating mud. 0' Lose signal to LWD. Pull out of hole and lay down BHA. Pick up BHA and trip back in hole. 19 March 2012 TD:7285'; Mud weight: 9.5 ppg; Viscosity: 54.0. Continue trip back in 226' hole. Took weight at 6487'. Wash and ream from 6487'to 6992'. MADD pass from 6962'to 7057'. Drill from 7057'to 7285'. 20 March 2012 TD:7816'; Mud weight: 9.7 ppg; Viscosity: 50.0. Drill from 7285'to 7534'. 532' Increase mud weight from 9.5 to 9.7 ppg. Drill from 7534'to 7817'. t Memo Date: 3/15/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Michael Quick RE: Weekly Update for Repsol Exploration Project—Kachemach#1/Permit#: 211161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 08 March 2012 TD:2410'. Rig up to test BOPE. Test BOPE to 250 psi low/5000 psi high- 0' good.AOGCC witness by Matt Herrera.Test 13-3/8"casing to 2500 psi for 30 minutes—good test. Rig down test equipment. Begin picking up 12-1/4" BHA. 09 March 2012 TD:2940'; Mud weight: 9.8 ppg; Viscosity: 51.0. Finish picking up 12-1/4" 530' BHA. Trip in hole to 2314' and tag. Drill cement and float equipment to 2410'. Drill from 2410'to 2430'. Perform FIT to 13.0 ppg EMW,good test. MADD pass from 2267'to 2430'. Drill from 2430'to 2940'. 10 March 2012 TD:4121'; Mud weight: 9.8 ppg; Viscosity: 47.0. Drill from 2940'to 3610'. 1181' Circulate and condition for short trip. Short trip to 2365'—no over pull. Trip in hole to 3419',wash to 3611'. Drill from 3611'to 4121'. 11 March 2012 TD:4951'; Mud weight: 9.8 ppg; Viscosity: 46.0. Drill from 4121'to 4951'. 830' Circulate BU,trip out of hole to 2365'—no over pull. Work to thaw frozen lines to mud loggers unit. Trip in hole to 4281'. 12 March 2012 TD:6278'; Mud weight: 9.8 ppg; Viscosity: 45.0. Continue trip in hole, 1327' took weight at 4317',work through and wash down to 4472',continue to bottom. Drill from 4951'to 6278'. 13 March 2012 TD:6550'; Mud weight: 9.5 ppg; Viscosity: 47.0. Drill from 6278'to 6458', 272' increasing mud weight to 10.0 ppg. Lost returns,work to re-establish returns. Spot 46 bbl LCM pill. Trip out of hole 3 stands,allow pill to soak. Circulate and reduce mud weight to 9.5 ppg and add 30 ppb LCM to system. Wash and Nor rotate from 5717'to 6548', losses at 10-20 bph. Drill from 6548'to 6550', returns diminished, losses at 86 bph.Total losses for the day=540 bbls. 14 March 2012 TD:6771'; Mud weight: 9.8 ppg. Losses continue, pump 48 bbl LCM pill. Trip 221' out of hole to 6085', losses reduced to 10 bph. Trip in hole, Build and pump additional 10 bbl LCM pill. Drill 6550'to 6675'. Back ream from 6675'to 6540'. MADD pass 6540'to 6580'. Wash and ream to bottom. Drill 6675'to 6771'. Circulate and condition while increasing mud weight to 10.2 ppg. Trip out of hole to 6388'. Circulate and establish loss rate of 100 bph. Total losses for the day=570 bbls. Memo Date: 3/8/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Michael Ouick RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#: 211161 CONFIDENTIAL Date and Footage nrillerl ac c f 24.nn hours. Activity 01 March 2012 TD:2410'. Continue waiting on n orders. General maintenance on rig. Continue 0' circulating mud. 02 March 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 03 March 2012 TD:2410'. Continue waiting on orders._ _ General maintenance on rig. Continue 0' circulating mud. 04 March 2012 TO:2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 05 March 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 06 March 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. 07 March 2012 TD:2410'. Increased mud weight to 9,8 pug. Received approval to resume 0' drilling operations. POOH racking back drill pipe. Notified AOGCC for witness of ROPF tect Memo Date: 2/24/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Michael Quick RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#: 211161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 16 February 2012 TD:2410'. Continue nipple down of diverter. Install wellhead and nipple up 0' BOPE. 17 February 2012 TD:2410'. Finish nipple up BOPE. Dummy test BOPE 250 psi low,5000 psi 0' high. Test annular to 250 psi low and 3500 psi high. 18 February 2012 TD:2410'. Finish dummy test of BOPE. Pick up 5" drill pipe and rack back 0' stands. Waiting on orders. 19 February 2012 TD:2410'. Continue waiting on orders. Continue picking up 5"drill pipe, 0' racking back stands. 20 February 2012 TD:2410'. Continue waiting on orders. RIH and circulate out spud mud with 0' 9.4 ppg KCL mud system. TIH and pressure test 13-3/8" casing to 2500 psi, hold for 30 min and chart—good. 21 February 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. TIH and 0' circulate mud. 22 February 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Increase 0' mud weight to 9.7 ppg and continue circulating. 23 February 2012 TD:2410'. Continue waiting on orders. General maintenance on rig. Continue 0' circulating mud. .. .....__._.._ { • Memo Date: 2/16/2012 To: Guy Schwartz AOGCC,Anchorage,AK 99501 907-793-1226 CC: Robert Jones From: Michael Quick RE: Weekly Update for Repsol Exploration Project—Kachemach#1, Permit#: 211161 CONFIDENTIAL Date and Footage Drilled as of 24:00 hours. Activity 08 February 2012 Continue Rig Up. John Crisp with AOGCC witnessed diverter test.Continued 0' testing gas detection system. 09 February 2012 Continue Rig Up. Continue troubleshooting gas detection system. 0' 10 February 2012 TD:315'; Mud Weight: 9.0; Viscosity: 170. Gas detection issues resolved. 315' John Crisp with AOGCC waived witness and planned to do a spot check. P/U BHA and washout conductor pipe from 0'-78'.Spud well and drill from 78'to 315'. Circulate and condition mud, LID cleanout BHA. P/U BHA#1 with LWD/MWD tools. 11 February 2012 TD: 1045'; Mud Weight:9.0; Viscosity: 170. Finish P/U BHA#1 with 730' LWD/MWD tools,wash and ream from 292'to 315'. Drill from 315'to 1045'. 12 February 2012 TD: 2076'; Mud Weight: 9.7; Viscosity: 83. Drill from 1045'to 1216'. Repair 1031' mud pump#1,drill from 1216'to 2076'. 13 February 2012 TD: 2410'; Mud Weight: 9.7; Viscosity: 68. Drill from 2076'to hole section 334' TD at 2410'. Circulate and condition mud, pump hi vis sweep. Short trip to 1118'. Trip back to bottom and circulate and pump hi vis sweep. TOH to 1022', no issues. LID BHA#1. 14 February 2012 TD: 2410'. Finish LID BHA#1. Rig up casing running tools, run 13-3/8"casing 0' to set depth at 2396'. Lay down casing tools. Rig up cement equipment. 15 February 2012 TD: 2410'. Finish rigging up cement equipment. M/U stab in tool, RIH. Stab 0' into float collar,establish circulation. M/U cement head and sting back into float collar,establish circulation, pump mud flush, 296 bbls 10.7 ppg lead cement,59 bbls 15.8 ppg tail cement,floats held. Had 50 bbls of good cement returns. Rig down cementing equipment. TOH with stab in tool. Begin nipple down of diverter. riALT-r -r ,R\ LAsEA I SEAN PARNELL,GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COM1 HSSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 Bill Hardham FAX (907)276-7542 Operations Manager Repsol E&P USA, Inc. 2001 Timberloch Place, Suite 3000 The Woodlands, TX 77380 Re: Wildcat Field, Wildcat Pool, Kachemach #1 Repsol E&P USA, Inc. Permit No: 211-161 Surface Location: 1551' FEL, 2265' FNL, SEC. 31, T8N, R8E, UM Bottomhole Location: 1551' FEL, 2265' FNL, SEC. 31, T8N, R8E, UM Dear Mr. Hardham: Enclosed is the approved application for permit to drill the above referenced exploration well. In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both name Kachemach #1 PH and API number 50-103-20646-00 from records, data and logs acquired for well Kachemach #1. All dry ditch sample sets submitted to the Commission must be in no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. This permit to drill does not exempt you from obtaining additional permits or approvals required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. A weekly status report is required from the time the well is spudded until it is suspended or plugged and abandoned. The report should be a generalized synopsis of the week's activities and is exclusively for the Commission's internal use. 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. Sincerel t, Daniel T. Seamount, Jr. / Chair DATED this Co. day of January, 2012. cc: Department of Fish & Game, Habitat Section w/o end. (via e-mail) Department of Environmental Conservation w/o end. (via e-mail) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL AAC 25.005 1a.Type of Work: 1b.Proposed Well Class: Development-Oil I ]/ - Winj U Single Zone ❑ 1c.Specify if well is proposed for: Drill ❑l Redrill ❑ Stratigraphic Test ❑ Development-Ga 1' ervice-Supply ❑ Multiple Zone ❑ Coalbed Gas ❑ Gas Hydrates ❑ Re-entry ❑ Exploratory ❑l Service- WAG LJ Service-Disp ❑ Shale Gas ❑ 2.Operator Name: 5. Bond: Blanket ElSingle We ❑ 11.Well Name and Number: JSA rer573 I E L-611�1 r'� ,, lc it Bond No. 62203;2](5 22 •14A/z ic // Kachemach#1 3.Address: 6.Proposed Depth: 12.Field/Pool(s): 2001 Timberloch Place,Suite 3000,Woodlands,TX,77380 MD: 10,400' - TVD: 10,400' Wildcat 4a. Location of Well(Governmental Section): 7.Property Designation(Lease Number): Surface: 1551'FEL,2265'FNL,Sec.31,T8N,R8E,UM ( ADL 391420 Top of Productive Horizon: 8.Land Use Permit: 13.Approximate Spud Date: 1551'FEL,2265'FNL,Sec.31,T8N,R8E,UM LAS 28269 1/15/2012 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1551'FEL,2265'FNL,Sec.31,T8N,R8E,UM 5-A.-,t j cres .2.«-11 13225 feet 4b.Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: , 444' feet 15.Distance to Nearest Well Open Surface:x- 471669 - y- 5,851,658 •. Zone-4 GL Elevation above MSL: • 415' feet to Same Pool: N/A 16.Deviated wells: Kickoff depth: N/A feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: N/A degrees Downhole: 5584 psi Surface: 4544 psi 18.Casing Program: Specifications Top - Setting Depth - Bottom Cement Quantity,c.f.or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 26" 20" 129# X-52/X56 PEB 80 0' 0' 80' 80' 38 sx Permafrost type L cement 16" 13-3/8" 68# L-80 BTC 2500 0' 0' 2500' 2500' 422 sx Perm Lead,287 sx Class G Tail 12-1/4" 9-5/8" 47#/53.5# L-80 BTC-MOD 8780 0' 0' 8780' 8780' 873 sx Class G x s " - - - - - 87 So ;77 ro iayoo , Afwoo cN • 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-Entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effect.Depth MD(ft): Effect.Depth TVD(ft): Junk(measured): Casing Length Size Cement Volume 41 I---, y• TVD Conductor/StructuralCeP VC. Surface C� Intermediate DEL- Production Akio� ?0O 1 0. Liner 1rdi , Perforation Depth MD(ft): Perforation Depth TVD(ft): n�Vernisni; ci® n'®n 20. Attachments: Property Plat ❑✓ BOP Sketch Q Drilling Program El Time v.Depth Plot Q Shallow Hazard Analysis Diverter Sketch Q Seabed Report ❑ Drilling Fluid Program Q 20 AAC 25.050 requirements 21. Verbal Approval: Commission Representative: Date 22. I hereby certify that the foregoing is true and correct. Contact Michael Quick 907-334-1576 Printed Name (B,iill HHaaJrdham �ii Title Operations Manager Signature Phone 281-297-1176 Date 12/12/2011 Commission Use OnlyPermit to Drill / rp Number: //�/ API Number: Permit Ap50-/ 7.3 � b� 0` ate: 1v`•Pal '^ r` requirements.See cover letter for other Conditions of approval: / If box is 2 93 checked,well may not be used to explore for,test,or produce coalbed ethane,gas hydrates,or gas contained ins e0 Other: 44. Sid /40.5L is v f f- Samples req'd: Yes[.N o❑ Mud log req'd: Y 1❑ / & e H2S measures: Yes[ No❑ Directional svy req'd: Y� 0 * 'DV'_ WP�lLI J © ,p / °`��C /,atct�cr j + Lie� fl torz' �Z c� �d1/?C' S. �(�� APPROVED BY THE COMMISSION / / C,/ r DATE: r= ,COMMISSIONER i?‘" (• S'/Z L % 4/ i \ , ff77 Form 10-401(Revised 7/2009) This permit is valid for 24 months from the date of approval(20 AAC 25.005(g)) Submit in Duplicate Repsol — Exploration Kachemach #1 REPFOL Confidential Wellbore Schematic - Recommendation ' % % % ii —f32" Hole i :, %, i 20" 129#X-52/56 PEB Conductor 1 : : ; 'S % @ • I , +/-80' MD /TVD I : 5 5 , :: 1 I : 5 5 5. I 1 ; 1 1 5 5 e._.__ I I : :ii y ; 116" Hole I : : f 5 ; :r1 I : : i , I I : 5,, 1 I i , ; :: I : ¢ 1 1 : : 5 5 5I I : : j i i : I I ; Al 13-3/8" 68# L-80 BTC Casing @ y 1 +/-2500' MD I 5 I � � 1 I 5 5 I I 55� i 5 5 5 � 5 5 5 i *Seabee 4244' I /5 5 I 5 i 1 % ; 5 I 5 � I I I I ; 5 I 'S 5 If 12-1/4" Hole 5 5 I % 5 I :, ' 1 Est TOC @ 6300' 1 5 5 1 5 5 :5 :5 ; :: 5 5 I :5 5, :I *Narvaq Fan 6826' I 5 5 :• Torok 6973' i , *Torok Fan 7286' - 5 • I HRZ 7671' " %1 :; I *Ku C 7923' i :y i �`� a's�/ bs.` *Kup B 7928 • `� 655' ' ( I I° �r I :5 ; i l �f :', I 511 1 :5 5 :: I I Miluveach 8400' • Ii 9-5/8" 47# L-80 BTC Casing @. �i I +/- 8790' *J-5 8783' 1. . . . . . : . . . . . . 1 1 I 8-1/2" Hole I I I TD @ +/-10400' :.: . "::;:::::::: :I I 1 TD a +/-10400'• ' A. Dial REPJOL REPSOL USA Application for Permit to Drill Kachemach #1 North Slope, AK Dec Aisle s oar 04 cl 'bng9rit"` ° i �`� s:ion December 2011 December 12, 2011 Alaska Oil and Gas Conservation Commission 333 West 7`h' Avenue, Suite 100 Anchorage, AK 99501 RE: Application for Permit to Drill: Repsol Kachemach#1 Dear Commissioner: Repsol hereby applies for a Permit to Drill an onshore exploratory well on the North Slope. The well, called Kachemach #1, will be located approximately 6 miles southeast of DS2P. Repsol plans to spud the Kachemach#1 approximately January 15, 2012. Ice road/pad construction equipment has already begun prepacking ice road and ice pad alignments. Upon receipt of all necessary permits and approvals the construction of the DS2P staging pad will begin, followed by the construction of the ice road and ending with the construction of the ice drilling pad. Upon completion of the ice drilling pad, Nabors' Rig 9ES will be transported to location and the well will be drilled to TD. No well testing is planned at this time. At the completion of the drilling program, the drilling rig will be demobilized to Deadhorse. Pertinent information attached to this application includes the following: 1. Form 10-401 Application for Permit to Drill (Public Information)— 1 copy 2. Form 10-401 Application for Permit to Drill —2 copies 3. Well Prognosis and discussion of operational considerations 4. Location Plat and Drill Pad Layouts 5. Days vs. Depth Drilling Curve 6. Drilling Procedure 7. Wellbore Schematic 8. Directional Plot 9. Pressure information including pore pressure, mud weight and fracture gradient curves, offset well mud weight plot, maximum anticipated surface pressure calculations, FIT and LOT procedures, and casing properties and design factors. 10. Drilling Area Risks 11. Diverter, BOP and Choke manifold schematics and Wellhead Description 12. Cement Program 13. Drilling Fluid Program 14. Shallow Hazard Report Page 2 The AOGCC is requested to treat as confidential all information included in the Application for Permit to Drill (except the Public Information Copy) as information in these documents is drawn from research and data proprietary to Repsol. If you have any questions or require additional information, please contact Bob Jones, Drilling Manager at 281-863-1618, myself at 281-297-1176, or the technical contacts contained in the following pages. Sincerely, 13, Bill Hardham Operations Manager Repsol USA REPSOL USA Kachemach #1 Overview and Timetable Repsol intends to conduct an exploration drilling program on leases operated by Repsol during the winter 2011- 2012 drilling season. The drilling program will include activities beginning during the summer of 2011 and ending during the summer of 2012 including: • Conducting a field program during June through September to obtain engineering and environmental data to define ice road routes and ice pad locations. Specific activities include ground surveys for onshore ice roads and pads,marine surveys for offshore ice roads and pads, lake surveys to determine locations and availability of water for ice road/pad construction and operational uses, and archaeological and cultural resource investigations. • Monitoring soil temperatures with thermistor strings placed along ice road routes and pads in September and pre-packing the ice road alignment for ice roads via tundra-approved vehicle in November to December as permitted by ADNR and the NSB. • Construction of two ice pads to be located in the immediate area Drillsite 3S and / Drillsite 2P in the Kuparuk River Unit for staging construction and drilling ✓ operations in December or January as permitted by ADNR and the NSB. • Construction of approximately 30 miles of onshore ice roads and approximately 30 miles of onshore ice road in December and January as permitted by ADNR and the NSB for transporting drilling rigs and equipment for drilling operations. • Construction of 4 onshore ice pads and one offshore ice pad in December and January as permitted by ADNR and the NSB to support exploration drilling operations. • Conduct the exploration drilling operations during January to April at five ,- separate locations using five separate drilling rigs. At least one vertical well is planned at each location, and time permitting, up to two sidetracks will be drilled at each location. The wells are being drilled primarily to assess oil reserves within leases operated by Repsol. • Demobilize all equipment from the ice pad and clean up the sites and ice roads during April to early May. • Conduct summer clean up operations during July to August 2012. Operational Considerations Permafrost Based on offset wells and seismic data, the permafrost is assumed to be present from the / surface to approximately 1330'. The permafrost is not expected to present any drilling difficulties as neither thawing nor gas hydrate problems were encountered in any of the offset wells. Surface Casing Shoe Depth The+/- 2500' TVD setting depth for the 13-3/8" surface casing is located in a shale in the Upper Schrader Bluff formation. The casing shoe will be set in competent shale within - the Upper Schrader Bluff in order to yield a strong shoe test. Lost Circulation and Sloughing Shales Some of the wells in this general region encountered sloughing shales below the HRZ and lost circulation in and near their target horizons. The Kachemach#1 casing and mud programs have been designed to take these potential problems into account. Pressures Anticipated pore pressures are derived primarily from the histories of offsetting wells in conjunction with a pore pressure analysis completed using seismic velocities. As shown on the attached pore pressure plot and maximum anticipated surface pressure(MASP) calculations, the highest expected pressure is at 10400 feet and is 5584 psi (0.537 psi/ft= 10.4 ppg EMW) and will result in a maximum pressure, with a full column of gas, of 4544 psi,but due to formation breakdown, will result in a maximum pressure at the surface of 1700 psi (see included calculations). A 5,000 psi working pressure BOP and wellhead system will, therefore, be used on this well. Abnormally pressured shallow gas is not anticipated. The pore pressure prediction section of this application contains an evaluation of the risk of drilling high pressure zones as potentially recognized after seismic processing. Drilling Within Annular Blowout Preventer Limitations As shown in the included pore pressure prediction study, the highest pressure expected above the surface casing setting depth (0.537psi/ft pressure gradient at 2500' TVD less a 0.1 psi/ft gas gradient) is 1092 psi; which is within the 2,000 psi working pressure rating of the diverter. Below the surface casing, BOPs will be used. BOP System and BOPE Testing The BOP system of Nabors Rig 9ES is rated at 5,000 psi working pressure and is described in the BOPE section of this application. Since the calculated maximum anticipated pressure in this well is 4544 psi, it is planned to routinely test all BOPE to ✓ S lc 100% of its rated working pressure(5,000 psi) (except the annular BOP which will be tested to 50% of its rated working pressure (-2500 psi). BOPE will be tested every 7 days per 20 ACC 25.035. Well Deviation The Kachemach#1 will be drilled as a vertical hole. Directional control will be monitored via MWD in all hole sections. Based on geological results, a bypass hole may be drilled to obtain conventional core(s). Directional control will be monitored via MWD as well. H2S None of the offsetting wells encountered measurable amounts of H2S in the intervals to be drilled, and it is not expect that drilling the Kachemach#1 well will encounter measurable amounts of H2S. However, the drilling rig will be wired with operating sensors, enhanced by additional sensors tied into the mud logging system, to continuously monitor for the presence of H2S. Drilling Waste Handling Waste drilling mud from the well will be temporarily stored within a bermed storage cell in heated tanks; while the drill cuttings will be temporarily stored within a bermed storage area in"shale bin" containers. Cuttings will be hauled to an approved disposal facility for processing and disposal. Diagrams are included with this application that shows the ice pad layouts with the proposed location of the storage cells. Additional Information Additional information on operations such as formation tops, logging, mud logging, etc. can be found on the attached Kachemach#1 Well Prognosis. Certified Location Plat An as-built location plat, certified by a Registered Land Surveyor, will be submitted shortly after construction of the drilling location is completed and the conductor pipe is set. Contacts The contacts within Repsol for information are: Reporting and Technical Information: Michael Quick 907-334-1576 or Amanda Dial 907-339-7654 Geological Data and Logs: Robert Killion 281-297-1157 REPSOL USA Kachemach #1 Well Prognosis Well Name: Kachemach #1 Surface Location: 1551' FEL, 2265' FNL, Sec. 31, T8N, R8E, UM Target Location: 1551' FEL, 2265'FNL, Sec. 31, T8N, R8E, UM Bottomhole Location: 1551' FEL, 2265' FNL, Sec. 31, T8N, R8E, UM Elevation: Ground Level 415' AMSL Drill Floor(DF) 29' AGL Planned TD: 10400' MD Formation Tops: Tops Depth (TVD) Base Permafrost 1330' MCU 3688' Torok 6973' HRZ 7671' Kup C 7923' '/ LCU 7928' BCU 8783' J-5 8783' TD 10400' ' Cores: A 180' core is possible in the J-5 sand and/or Kup C Planned Logs: Surface Hole: 80' to 2500'(+/- 200') LWD only: Gamma Ray/Resistivity Production Hole: 2500' to 10400' LWD: Gamma Ray/Resistivity, Density/Neutron Wireline: MDT,NMR, Sonic, Dipole Sonic, SWC, VSP Mud Logging: Mud Logging will be in operation from the base of the conductor casing to well TD. Services will include sample collection; plotting of ROP, lithology, and drilling parameters; show description; gas analysis of cuttings; and gas chromatography. Samples will be collected every 30' from the base of surface casing to TD, and every 5' in zones of interest. Collect Isotubes from any gas shows. The wellsite Geologist will adjust the interval or sampling rates as required. Q GRU [D :=: if46. QUGRUK NO 2 r QU ORUK NO. 1 $ ' PI-5' �A�rt C dor 'QUGRUK,NO. 3.rt ` C •R 'y" 1 • �. I I ,. ' r 1 Legend i i Bathymetry I ,„ / Depth ar , / , -4.500000--4.300000 4.299999-4.100000 / ,f • 4.099999-•3.900000 �+ 9.7"ccc 1• ', 08 i 3.899999--3.600000 y/,' ` '., L.....' l u; -3.599999--3.400000 "• ? `r '• aT '1'. "` `� �" i -3.399999--3.200000 i ' I 1, -3.199999--3.000000 I?: -2.999999--2.800000 .�•1.,, :it .,- e. „ J.' • -2.799999--2.600000 / ► tie 1 1 + • -2.599999--2.200000 •' ' .t V„ �• ' I/ �a IIWells 1-1. r r•^ 7.. 4) , �, Well Name ..4_,..,,,.., ,' y./ •1 1. I KACHEMACH NO.1 L.. A °� /// # QUGRUKNO.1 t\ . '1.-.4.-..'-D , yF ••t. I�-I 1: /I L ! r q 1' s I S QUGRUK NO.2 v r "i r 5 QUGRUK NO.3 ,, !' q i "• QUGRUK NO.4 -'1 � j, . r K1_REROUTE • "rti' -*' u -'- -., . ^ J a Pipelines ,t,',r '•' .y Ji .c.2.- c.,- ------f - i a Roads !r it /.f�,� -Leases Repsol •- � / er", ••'r'.l�.'' , / •j ! —Oftshorelceroads ..11;:•4•J + ` ` '..- t � � KACHEMACH NO.1 Onshore Iceroads �:.,.' s ( - 6 1•41 -_ ., .4',"-iv, .. 'fin .. lT. t� .D \ n - R . * Repsol Area with RFRIOI • �' ' Final Survey • 'j` :• / r U Z _ o a Li G� O —in Z T m „ }§W W Z ce W• 2 :4:6' w Q W¢K I�14 Uo Sm - 1111.1. J �_ ¢� ins (I) 1:-.'X Z d' OKmNN w Y 3Z U • ,�it d -10-1-DI.- 0 a�N� wm z wN w 11'. 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J ,,jk'''Q C _ , I . 0 L N CO1-1 Q a n � ° 1 12 c t \t. bo au,-, \ > N W U '~ • OO W 0 `y i cLiN Nin _ 2 >. N m W m (13 u a in 'o 3 m — v n O s Q r V N CO c N wE " _ W N O s m L LI CO in V3 � o CO 0 .c ct N Q .-1 T. m v c \ N y T IO N u -a v O M L m 'y N N rl Q Q O Q Q Q O N Tr lD 00 O N .--I a-i Kachemach #1 Drilling Procedure 1. MIRU Nabors rig 9ES. (A 26"hole will be augered to+/- 80' with 20"conductor casing set and cemented prior to rig moving on location.) 2. Nippleup diverter and function test. Notify regulatory agencies 24 hours prior to test. 3. Drill 16"hole to the surface casing point of+/-2500' MD/TVD. Run and utilize MWD " and LWD tools throughout this hole section to monitor hole angle and to ensure the hole remains vertical,as well as collect logging data. • 4. Condition hole for casing. POOH. • 5. Run 13-3/8",68#,L-80 BTC casing to surface. RIH with drill pipe and stab-in to tool and pump cement until good cement returns reach surface,using a lightweight permafrost cement lead slurry(-312 bbls)followed by a high strength Class G tail slurry (-59 bbls)per cementing program. 6. Nipple down diverter and nipple up BOPE dressed with 9-5/8"casing rams and 3-1/2"to 6"variable pipe rams. Test BOPE. Notify regulatory agencies 24 hours prior to test. -SOS" "-- •7. Make up 12-1/4"drilling BHA and RIH to the top of the 13-3/8"float equipment. Pressure test the casing to.-1-;\50 psi for 30 minutes. Record the pressure test and send the results to Anchorage office. 2$0O #'s,:, �•s iz - 8. Drill the float equipment and 20' of new hole. Perform FIT to 13.0 ppg EMW. Record I the results and send to the Anchorage office. • 9. Drill a 12-1/4"straight hole to+/- 8,780' MD/TVD. Run LWD logging tools in the drill ' string as required for formation data gathering. • 10. Condition the hole for logging. POOH. • 11. Rig up wireline. Run wireline formation evaluation logs per logging program. Rig down wireline. • 12. RIH with 12-1/4"BHA and condition hole for casing. POOH. .13. Run 9-5/8",47#/53.5#,L-80 BTC casing to surface. Pump Class G cement slurry(-479 bbl)to bring TOC to+/-6300'per cementing program. 14. Make up 8-1/2"drilling BHA and RIH. Pressure test the casing to 3,000 psi for 30 minutes. Record the pressure test and send the results to Anchorage office. 15. Drill the cement and 20' of new hole. Perform FIT tlli_npg EMW. Record the results and send to the Anchorage office. 16. Drill an 8-1/2"straight hole to+/- 10,400' MD/TVD. Run LWD logging tools in the drill string as required for formation data gathering. 17. Condition the hole for logging. POOH. 18. Rig up wireline. Run wireline formation evaluation logs per logging program. Rig down wireline. POSSIBLE CONTINGENCY BYPASS FOR CORE: --7" I; d";I1c.0 C°"` wej( t. a. RIH with drill pipe to+/- 10,000' MD/TVD. Spot two balanced cement plugs _ across the the J5 sand from+/- 10,000' to+/- 8,500'by pumping+/- 131 bbls of (°'"d' w 15.8 ppg class G cement. POOH to+/- 8,000'. WQC. RI I and tag op of bet.._ 10 Hi Ncement at+/- 8,500'. POOH. L-� •4jC,M,..;s s.r..`� ` b. Make up whipstock and BHA and RIH to+/-7,175' MD/TVD. I LA- - s e- .3 p� ` c. Set whipstock and drill out for bypass. Run and utilize MWD and LWD tools to monitor hole angle and to ensure hole regains vertical angle. • d. Drill an 8-1/2"hole to first core point at+/- 7,923' TVD. POOH. I - FIT fp 5 l F,,.w /•s.G2 e. Make up 8-1/2"coring BHA and RIH to core point at+/-7,923' TVD and core ✓ 90'. POOH. f. RIH with 8-1/2"coring BHA for second 90' core. POOH. g. Make up 8-1/2"drilling BHA and RIH to first core point. Ream hole and drill to second core point at+1-8,783' TVD.POOH. h. Make up 8-1/2"coring BHA and RIH to core point+/- 8,783' TVD and core 90'. POOH. i. RIH with 8-1/2"coring BHA for second 90' core. POOH. j. Make up 8-1/2"drilling BHA and RIH to second core point. Ream hole and drill to TD(+/-10,400' TVD). k. Condition the hole for logging. POOH. 1. Rig up wireline. Run wireline formation evaluation logs per logging program. Rig down wireline. 19. The well will be abandoned upon completion of evaluation. Sundry will be submitted for P&A,pjan. 6�- 20. Rig down and move off location. N O cg vv'a 2 8 4.0000 0 000 0004 04.000 04.8”0 8popp o ' _� e v eeeee v vee g eeeee .'.'aae v?vvv e.v?vv a 0 -q ! ; ! ! ! !!! ,d .6!:! ! „2j khhal Mh�dhh v v:: ! eeeee vevv ro 8mromm! a.. ro8mQroQmQ mmm`Dw Q1. o ;s hhh 8 g hhh h 8 ghh § hhhhh §ghhh v2ih,XY§ h$h$§ h Z 'M M i7v� 4.'j M M M M M M M M M MMM M M MMM M M MMM M M M M M M O :iii UD UD OD UD UD UD aD 4 m UD UD m aD 0Opp UUU)II)h h M b UD OD W UD W M UD UD 4 8 UD UD UU UD UD N NNN h h NNN,UN M ,UMN dj N hNNMN UUNh N,A UA,d NYf,U N � O cc"N N N e v 41.4'.7t.“. N; e e ee ; -...-0,47:i•=. ,:,....v..=. ee a Oee e e.e<v v 0. 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September 13,2011 Cat N 69571484 Northing: 5831500 86 PUS Grid Cony:-0.37242433• Slot J5 TV0 Ref Rotary Table(512R above MSL) Mag Dec. 20.558• FS'. 57504901 Lon: W 1502347.220 Easbng: 450216 40 Scale Fact 099990282 Plan: J-5(P1) Sr,Date:September 13,2011 -3000 -1500 0 1500 3000 • 0 RTE 0 1500 _.._..i.._.._.._.._.._.._.._.._..a.._.._.._.._.._.._.._.._.. .�vacn[aA�r.9lu�t_.._..:.._.._.._.._.._.._.._.._..:.._.._.._.._.._.. 1500 se PM') . l 95/9•• 3000 3000 Tuluvak/Seabee 4500 4500 0 Zi0 c 6000 6000 0 rr •"Narvaq Fan SS Torok Santl 7500 7500 Torok Fan SS HRZ 9000 i i 9000 r r::r:.::.::.::.r,.::.::.::.::.::.::.rr :.r:.rr.rr.rr.rr*rr.r:.::.r:.rr.r:.:t ,a,:: .::.r:.rr.:..::.:: .::. .::. .:: as :..:r.: • JS/J-4.1 10500 10500 Sag Rrver SS TD J-5(P1) -3000 -1500 0 1500 3000 Vertical Section(ft)Azim=0°,Scale= 1(in):1500(ft) Origin=0 N/-S,0 E/-V I 8844.8 _ o c? 4.ppaN N (O 0( b{pbbb (D twmwww O Ate' NNNNN NNNNN NNNNN NN N W '444.4'4 0080 '44'11-1'4 8000 OOO BO1O0�QQ�O0 OO m 4.0 0 V d 4.0 d O T V 4.V O V '414' d 2 NQ O^ sM0N 8828N NNNNN NN406Gi. 0N0NNat QQQaO- Z M M M M l g M M g t'p; 4 4 4 b pQl E 8S828 2888°A cA VA VA YI YI _ O N SO Y OE 4 M MhN r4. 04.0O QO O O O O O N NC 6YlthMYD06 000od o6 a W Y c O N o= N N N C= =C C C i' m ami L ami N t a=i ,d aaaaLL L"aaaa ¢¢¢¢Q ,c< W 12 : 88:='4.2 -r 8 1-� 4.IDrn nNNI.iN n0 r. 02 0 0 0 lV fV lV O N N 0i 0i 0i N fV O N E A' C u a M O O O O O O O O O p p O O 4 O p 00 c. 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U m > T m LL'U iLLN3 mgM NFD-UJJUU' 8 I-mm 0 Wh n4mm� 1..., ow 0 parcos. Schlumberger EU_ STRUCTURE K-1A(P3) Repsol Exploration K-1 Moon.Pararnelers Surlace Local.] NAD27 Alaska Slam Plane.Zone 04,US Reel Miscellaneous Model. BM.2011 13ip. 80.506. Dale. January 21,.12 Lai N 69 57 1484 Norliang 5831500.86 flUS 0220020 -007242433. MM. J5 T.Ref Rola,able(44411 above MSI.I MOO 800 20314° FS: 57570.801 Lon W 150 23 47 220 EaKing 45021600 ItUS Sudo F.0.99990282 Plaw K-1A(P3) Sow Delo:December 02 2011 -50 0 50 0 0 RTE • ase Permafrost 1500 _ 1500 Upper Schrader Bluff 13.318"Csg 3000 3000 Lower Schrader Bluff CU Tuluvak/Seabee ,• 4500 4500 c U) O 6000 6000 • -•- TRp Whipe1ock Na•r•Vak8-11 Torok Base Whipstock Drp 31100 Bld 31100 To• S 7500 7500 Drp HRZ Shale B • — 9-i/8"Csp •itiS 9000 9000 Sag River—SS— •— ••• 10500 TD. ........-.161.F.14 10500 -50 0 50 Vertical Section(ft)Azim=0°,Scale=1(in):50(ft) Origin=0 N/-S,0 E/-V Kachemach #1 Pressure Calculations and Drilling Risks Maximum Anticipated Surface Pressure: The maximum anticipated surface pressure (MASP) for this well will be the lesser of the formation pore pressure (less a full gas column to the surface) at TD or the formation fracture pressure at the last casing shoe(less a full gas column to the surface). Based on the attached study"Alaska Pore Pressure Prediction Project", the MASP expected in the final hole section is 4,544 psi at a depth of 10,400' TVD (or 0.537 psi/ft less 0.1 psi/ft gas ,/ gradient). Predicted fracture gradient data for this area based on seismic interpretation and offset data, at 2,500' TVD,the depth of the 13-3/8" casing shoe, is 0.78 psi/ft(15.0 ppg). Complete evacuation of the wellbore, except for a 0.1 psi/ft gas gradient, is assumed. 12-1/4" Hole Section—2,500' to 8,790' MASP (pore pressure) = (8790 ft)(0.537—0.1)= 3,841 psi MASP (form. breakdown) = (2500 ft)(0.780—0.1)= 1,700 psi 8-1/2" Hole Section—8,790' to 10,400' MASP (pore pressure) = (10400 ft)(0.537—0.1)—4,544 psi MASP (form. Breakdown) =(8790 ft)(0.842 —0. — ., psi Therefore, MASP in the 12-1/4"hole section is 1,700 psi and the 5,000 psi BOPE system ' to be used will be adequate. The MASP in the 8-1/2"hole section is 4,544 psi and the 5,000 psi BOPE system will be adequate. Well Proximity Risk: The nearest wellbore to the planned wellbore of the Kachemach#1, is the Narvaq#1 well ✓ located approximately 4 miles southeast. Therefore, there are no nearby wellbore proximity risks. Drilling Area Risks: 16" Surface Hole— 13-3/8" Casing Interval EVENT RISK LEVEL Miti'ation Broach of Conductor Low Monitor cellar continuously during drilling interval. Gas Hydrates Low ✓ If observed: control drill,reduce pump rates,reduce drilling fluid temperatures,additions of Lecithin. Gravel/Sand Sloughing to Moderate Increase mud weight/viscosity,pump high viscosity +/-500' sweeps. Monitor fill on connections. Hole Swabbing/Tight hole Low Circulate hole clean prior to trip. Proper hole fill on Trips utilizing trip sheets,pumping out of hole as needed. Possible Thaw Bulb/ Low Watch return viscosity for signs of thinning. Water Flow Increased mud weight/viscosity as needed. Lost Circulation Low Mitigation by good hole cleaning practices. Reduce mud weight if possible. If losses occur,reduce pump rates and lower mud rheology,use LCM material. Kachemach #1 Pressure Calculations and Drilling Risks (cont.) 12-1/4" Intermediate Hole—9-5/8" Casing Interval EVENT RISK LEVEL Miti ation Shale stability in the Moderate Control with higher mud weight and proper drilling interval below HRZ practices. Lost Circulation Moderate Monitor hole cleaning efficiency. Mitigation by good hole cleaning practices. Reduce mud weight if possible. If losses occur,reduce pump rates and lower mud rheology,use LCM material. Hole Swabbing/Tight hole Moderate Circulate hole clean prior to trip. Proper hole fill on Trips utilizing trip sheets,pumping out of hole as needed. Differential Sticking Low Periodic wiper trips as needed for hole conditions. Do not leave pipe static for extended periods. Abnormal Reservoir Low Follow programmed mud weights,monitor well, Pressure increasing mud weights as needed. Ensure adequate kick tolerance prior to drilling pay interval(s). 8-1/2"Production Hole & Bypass Hole EVENT RISK LEVEL Miti'ation Shale stability in the Moderate Casing point is pushed as deep as possible in the Kingak interval Kingak shale. Control with higher mud weight and proper drilling practices. Lost Circulation Moderate Monitor hole cleaning efficiency. Mitigation by good hole cleaning practices. Reduce mud weight if possible. If losses occur,reduce pump rates and lower mud rheology,use LCM material. Hole Swabbing/Tight hole Moderate Circulate hole clean prior to trip. Proper hole fill on Trips utilizing trip sheets,pumping out of hole as needed. Differential Sticking Low Periodic wiper trips as needed for hole conditions. Do not leave pipe static for extended periods. Abnormal Reservoir Low Follow programmed mud weights,monitor well, Pressure increasing mud weights as needed. Ensure adequate kick tolerance prior to drilling pay interval(s). Formation Integrity Test(FIT) and Leak-Off Test(LOT) Procedures Note that the terms used in these procedures are defined as follows: Formation Integrity Test(FIT): Formation is tested to a pre-determined equivalent mud weight. Leak-Off Test (LOT): Pressure is exerted against the formation until fluid begins to discernibly pump away. Pressure at which this first occurs is the leak off point. LOT Limit: 13.0 ppg EMW for all surface casing shoe tests; determined from previous experience with formation breakdown problems by attempting higher leak-offs. Open Hole LOTs (OH LOTs): Leak-off tests performed with open hole from the casing shoe to some point above the target reservoir. Generally done when leak- off is required but could not be achieved just below the casing shoe; or where weaker formations are suspected above the target reservoir but below the casing shoe, and assurance is required of being able to support estimated mud weight. Procedure for FIT: 1. Drill 20' of new hole below the casing shoe. 2. Circulate the hole to establish a uniform mud density throughout the system. Pull back up into the shoe. 3. Close the BOP (ram or annular). 4. Pump down the drill stem at 1/4 to '/z barrel per minute. 5. On a graph with the recent casing test already shown,plot the fluid pumped (volume or strokes)versus drillpipe pressure until the appropriate surface pressure is achieved for the FIT at the shoe. 6. Shut down at the required surface pressure. Hold for a minimum of 10 minutes or until the pressure stabilizes. Record time versus pressure in one- minute intervals. 7. Bleed the pressure off and record the fluid volume recovered. The pre-determined surface pressure for each formation integrity test is based on achieving an EMW at least 1.0 ppg higher than the estimated reservoir pressure, and allowing for an appropriate amount of kick tolerance in case well control measure are required. Formation integrity tests are conducted on all casing shoes with the exception of some surface casing situations. Where annular disposal pumping is planned on a well, the formation below the surface shoe is taken to leak-off. This ensures that future disposal fluids can be pumped away without risk of damage to the surface shoe. If two attempts at establishing a leak-off at the shoe are unsuccessful, then an open hole LOT is performed. Where required, the LOT is performed in the same fashion as the formation integrity test. Instead of stopping at a pre-determined point, surface pressure is increased until the formation begins to take fluid; at this point the pressure will continue to rise,but at a slower rate. The system is shut in and pressure monitored as with a FIT. BOP Control System The BOPE control system on Nabors Rig#9ES is a Koomey Model T-25430-36 blowout preventer control unit with a 315 gallon volume tank. Main energy is provided by a 25 HP electric motor driven triplex plunger pump, 7/8"plunger, rated at 8.7 gpm. The pump charges sixteen(16) eleven gallon bladder-type separator accumulators. A second energy charging system consists of two air pumps tied together. The above two energy systems are backed up by six 220 cubic foot nitrogen bottles connected to the manifold system. All of the systems are controlled by a Model GU5KB43 series manifold with seven manual control stations at the unit. Wellhead Description An exploration wellhead system has been selected for this well, consisting of a diverter system and a 5M rated wellhead assembly. The diverter system is attached to the 20" conductor with an overshot adapter that allows full bore access to the 20" conductor. The rig's diverter tee, knife gate and annular is then attached to the diverter system. The 13-3/8" casing is suspended with a fluted mandrel hanger in a landing ring that is part of the diverter system. The casing hanger is designed to drift 1" wash pipe if a top cement job is required. Once cementing is complete,the diverter system is removed and a 5M wellhead system is installed on the 13-3/8" mandrel hanger. The connection between the wellhead system and the mandrel hanger is pressure tested to 5M. The 13- 5/8" 5M wellhead system is design to suspend the 9-5/8" casing on a fluted mandrel hanger, and the 13-3/8" x 9-5/8" annulus is secured with a packoff that is installed from the rig floor without the need to remove the BOP stack. This packoff is tested to 5M upon installation. The wellhead system has been designed to be completely removed after the well has been drilled and prepared for abandonment. Kachemach #1 Cementing Program 20" Conductor Casing(set at 80',26" hole) Lead Slurry: Top of slurry: Surface Permafrost type L cement, 10.7 ppg density 30% excess Yield: 4.15 cu ft/sk Volume: 28 bbls (38 sx) including excess 13-3/8" Surface Casing(set at 2500', 16" hole) PreFlush/ Spacer: 10 bbl Water, 30 bbl 10.0 ppg Dual Spacer Lead Slurry: Top of slurry: Surface '' Permafrost type L cement, 10.7 ppg density 150% excess across Permafrost, 80' to 1330' 25% excess below Permafrost from 1330' to 2000' Yield: 4.15,cu ft/sk Volume: 312 bbls (422 sx) including excess Tail Slurry: Top of slurry: 2000' Premium class G cement, 15.8 ppg density 25% excess for 500' of annulus volume+ 80' shoe track Yield: 115 cu ft/sk Volume: 59 bbls(287 sx) including excess & Shoe track 9-5/8"Intermediate Casing(set at 8780', 12.25"hole) PreFlush/ Spacer: 10 bbl Water, 20 bbl 11.5 ppg Dual Spacer Lead Slurry: Top of slurry: +/- 6300' 1°6' Premium class G cement, 15.8 ppg density 25% excess Yield: 1.15 cu ft/sk Volume: 179 bbls (873 sx) including excess & 80' Shoe track 8-1/2" Open Hole plug Lead Slurry: Top of slurry: +/- 8500' Bottom of Plug: +/- 10,000' Premium class G cement, 15.8 ppg density 25% excess Yield: 1.15 cu ft/sk Volume: 132 bbls (642 sx) including excess U) -O§§ -. k� Ro_o )ƒ�§ co \ 5 ! 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I —PO.- ��-�3 IS 1'000�' I 1 AO `-' Ma' 1I Ne al,g �. `I,'z� Y]13113 YIOHJ I ® •� M , rc l[6 Oloe/SC/C Avq'au�l-auO•olf esaae•d p t y36\,�90e-538\536��!awld+31QVH\9 REP.lOL .• A 71, DRILL! y UIDS PROG' Well is , emach#1 � % .nto Version#1 0 //4. December 14,2011 98 Prepared for Mr. Michael Quick Operations Drying Engineer : ASR Energy • 907-334-1576 Mi ., •4"uicla,asrcenergy.com weir P •pared by Mr.Dave Higbie Operations Leader 6900 Arctic Blvd. Anchorage,AK.99518 907-275-2631 David.Higbie(&,Halliburton.com Chris.MacKinnon(a,Halliburton.co m HALLIBURT©N Baroid Fluid Services Operator Repsol USA Well Name Kachemach#1 Program Briefing Enclosed is our recommended procedure for Drilling Fluid Services in the referenced well. The information in this proposal includes well data,calculations, and cost estimates. This proposal is based on information from our field personnel, customer information and previous services in the area. If you require any additional information or additional designs,please feel free to contact myself or our field representatives. 2244/ ila Prepared and Submitted by: David Higbie Operations Leader % t-litomer A r• ike Quick gyp', Drilling Engineer Baroid Fluid Services Page 2 of 15 HALLIBURTON I Fluid Systems Repsol USA HALLIBURT©N Kachemach#1 ver. 1.0 ear o ct Prudhoe Bay AK/U.S.A. Table of Contents 1.0 Program Briefing 1.0.1 Well Data Provided by Repsol 1.0.2 Well Data 1.0.3 Potential Problems and Solutions 1.0.4 Baroid Project Support team .04, . 2.0 Well Design Ath 2.0.1 Existing Casing 2.0.2 Proposed Casing Design 2.0.3 Drilling Fluid Target Properties 2.0.4 Primary Products 2.0.5 Drilling Fluid Objectives 3.0 Interval Discussion y c Surface Interval 3.0.1 Surface Interval Depths 3.0.2 Surface Interval Goals 3.0.3 Mud Maintenance and Operations Discu W • ' Intermediate interval Nalk 3.1.1 Intermediate Interval Depths 3.1.2 Intermediate Interval Goals 3.1.3 Mud Maintenance and Operations Discussion Sidetrack#1 Intermediate Inten'et 3.2.1 ST#1 Intermediate Interval Depths 3.2.2 ST#1 Intermediate Interval Goals 3.2.3 Mud Maintenance and Operations Discussion 4.0 Well Cost/Volumes 4.0.1 Total Well Cost 5.0 Appendixes 5.0.1 DFG Hydraulics 5.0.2 LCM Decision Tree(Production section) 5.0.3 Sweeps Discussion 5.0.4 Testing at the Well site 5.0.5 Routine Sampling 5.0.6 Supporting Lab Data 3 HALLI B U RTO N Repsol USA Kachemach#1 ver. 1.0 Baroid Prudhoe Bay AK/U.S.A. 1.0 Program Briefing Kachemach#1 is a vertical well drilled through the J-5 formation to TD at+/- 10,600 ft MD. The well will begin out of a 20"conductor pipe set at+/-80 ft. A 16"surface hole will be drilled to+/-2,500 ft MD and 13 3/8" casing will be run and cemented. The 12 1/4"intermediate hole section will be drilled through the Torok Sands, HRZ Shale,Kuparuk Shale,to TD at the base of the Miluveach-J5 at+/- 8,790 ft MD. After running and cementing 9 5/8"casing in the intermediate hole section,an 8 1/2"production hole will be drilled to TD at 10,600' MD to log the J-5 sand. A bypass may be drilled off of the mother wellbore from 7,175 ft MD, depending on log data in the motherbore. The bypass will consist of a 8 '/s"wellbore kicked off from a whipstock in the mother wellbore from 7,175 ft. The 8 'h"well will be drilled into the J-5 to TD at 10,381 ft MD. The 16" surface hole section will be drilled with a standard 8.8-9 5 Ni Bentonite Spud mud system. Mud weight will be controlled through solids control and dilution through olcolidated gravel and clays to TD at 2,500 MD. The 12 1/4" Intermediate hole section will be drilled starting with a 9.4 ppg 6%KCL/PHPA mud to the top of the shale at 7,671'where 4 lb/bbl BAROTROL+will be added to the 6% T° uid for added shale protection,the weight will be also be raised at 7,671' to 10.4 ppg to drill through the shale. The 8 1/2"bypass will also use the 6%KCl =` mud system if drilled, incorporating a higher rheology mud for milling the window at 7,175 ft MD in the 9 - a The mud weight will 5nain at 10.4 ppg through the bypass. • 1.0.1 Well Data Provided by REPSOL ��„ s ", Data Provided Y/N Initial Comments Well Plan Proposal rCM Schlumberger K-1 A(P3) J-5(P1) Offset Wells Referenced f Y CM Narvaq#1 y 1.0.2 Well Data Operator REPSOL USA Well No. Kachemach#1 Field/Block Coleville Location Alaska/U.S.A Well Type Grassroots/Exploration Max. Well Deviation 0 deg Maximum Expected Mud Density 10.4 ppg Estimated Days 30 Days Anticipated BHST at Total Depth of well 182°F 4 1-IALLIBURTON eRepsol USA Kachemach#1 ver. 1.0 evirnlct Prudhoe Bay AK/U.S.A. 1.0.3 Potential Problems and Solutions Exp.Mud Exp.Fracture Potential Drilling Depth Mud Type Weight Gradient Hazard Baroid Solutions ■Proactive treatment of 110'—2,500' CONDET and DRIL- MD Spud Mud 8.8-9.4 ppg N/A Sticky Clays;Gravel N-SLIDE •Maintain High Rheology ■Appropriate Mud Weight 2 500'—7 671' Shale Sloughing; ■LCM Strengthening MD 6%KCl/PHPA 9.4-9.8ppg 15.8 ppg Lost Circulation; Strategy Sticky Clays *Optimized Rheology Shale Sloughing; •Appropriate Mud Weight 7,671'-8,790' 6%KCL/PHPA 10.4 15.8 ppg Lost Circulation; •LCM Strengthening Sticky Clays Strategy •Optimized Rheology Shale Sloughing; ■Appropriate Mud Weight 8,790'-10,600' 6%KC1/PHPA 10.4 1.5.8 Lost Circulation; ■LCM Strengthening Sticky Clays Strategy •Optimized Rheology ■35 YP for Milling Milling Window; .Appropriate Mud Weight 7,175'-10,381' 6%KC1/PHPA 10.1 15.8 Shale Sloughing; ■LCM Strengthening Lost Circulation; Sticky Clays Strategy •Optimized Rheology 1.0.4 Baroid Project Support Team Baroid Support Team Title Name Cell Number Office Number Email address Technical Professional Chris (907)227-5045 (907)275-2617 Ckris.MacKinnon@),Halliburton.conl MacKinnon Operations Leader David Higbie (907)242-7105 (907)275-2631 David.Higbie@Halliburton.com Lead Mud Eng. Lead Mud Eng. Night Mud Eng. Night Mud Eng. JOS John.Jessup(a),Halliburton.com Stock-point Manager Jessup/Brent (907)943-1028 (907)659-2422 Brent.Edmunds@Halliburton.cotn Edmunds Mud Engineer Positional Email 5 HALLIBURTC)N Repsol USA Kachemach#1 ver. 1.0 ear-old Prudhoe Bay AK/U.S.A. 2.0 Well Design 2.0.1 Existing Casing Design Casing Size ID. Tops Bottom Fluid Density 20" 19.124 0' MD/0' TVD 80' MD/80'TVD N/A 2.0.2 Proposed Casing/Completion Design Mother Bore Hole Size Casing/Liner Fluid Tops Bottom Size Density 16" 13 3/8" 0' MI)/0' TVD 2,500' MD/2,500'TVD 8.8-9.4 Spud Mud 12 'A" 9 5/8" 0 MD/0 TVD 8,790' MD/ 8,790' TVD 9.4-10.4 ppg 6% KCL/PHPA g 8,790' MD/8,790' 8'/Z" NA IVI10,600' MD/10,600' TVD 10.4 ppg 6% KCl/PHPA BYPASS Hole Size Casing/Liner Fluid Tops Bottom Size Density 8 %" NA 7,175' MI)/7,175 TVI) 10,381' MD/10,380' TVD 10.4 ppg 6% KCL/PHPA 2.0.3 Drilling Fluid Target Properties i Surface Hole: 8.8 ppg Spud Mud MD Mud Plastic Yield API MBT pH Weight Viscosity Point nil i 0'-2,500" 8.8-9.5 15-30 40-65 25-35 <12 8.5-10 Intermediate: 6% KCI Target Properties Mud Plastic Yield API HTHP MD Weight Viscosity Point MBT ml through pH Cl LGS Shale 275671 9.4-9.8 8-15 20-30 <12 <6 <10 9.0 30K 6.5 Intermediate: 6% KCUPHPA Target Properties Mud Plastic Yield API HTHP MD Weight Viscosity Point MBT ml through pH Cl LGS Shale 7,671' — 10.4 8-15 20-30 <12 <6 <10 9. 6.5 8,790' 10 30K 6 Repsol USA HALLIBURTON Kachemach#1 ver. 1.0 Baroid Prudhoe Bay AK/U.S.A. PRODUCTION: 6% KCL/PHPA Target Properties II! Mud Plastic Yield API HTHP MD Weight Viscosity Point MBT ml through CI pH LGS "/„ Shale 8,790'— <10 30K 9.5- 10,600' 10.4 8-15 20-30 <12 <8 10 `6.5 BYPASS: 6%KCL/PHPA Target Properties Mud Plastic Yield API HTHP MD weight Viscosity Point MBT ml through Cl pH LGS % Shale 10 381 10.4 8-15 20 35 <12 <8 <10 30K 9'50 6.5 2.0.4 Primary Products Spud Mud PRODUCTS Product Description Product Function AQUAGEL Wyoming Bentonite Primary Viscosifier X-TEND II Bentonite Extender Secondary Viscosifier SODA ASH Calcium Buffer Alkalinity Caustic Soda Alkalinity Alkalinity DRIL-N-SLIDE Fatty Acid Ester Lubricant/Clay Dispersant Primary Products 6% KCI/PHPA PRODUCTS Product Description Product Function BAROID BULK Ground Barium Sulfate Weighting agent AQUAGEL Bentonite<. Viscosifier PAC L Cellulose Derivative Fluid Loss CAUSTIC SODA Sodium Hydroxide pH Source ALDACIDE G Glutaraldehyde Biocide NXS Lube Sulurized Olefin Open hole/Metal on Metal Lubricant EZ GLIDE Ftty Acid Ester Blend Open Hole Lubricant EZ MUD DP PHPA Inhibition KC1 Potassium Chloride Inhibition BARASCAV D Sodium Sulfite Oxygen Scavenger BARACOR 700 Amine Corrosion Inhibitor 2.0.5 Drilling Fluid Objectives Primary Objective: Drill the well safely, both with respect to personnel and the environment. 1) Well Control 2) Maintain borehole stability 3) Optimize Hole Cleaning through the use of DFG Hydraulics 4) Prevent Differentially Stuck Pipe 5) Prevent Balling on Drilling Assembly 7 HALLIBLIRTON 1 v USA Kachemach##1 ver. 1.0 earoid Prudhoe Bay AK/U.S.A. 3.0 Surface Interval Discussions 3.0.1 Surface Interval Depths: 0—2,500' MD 3.0.2 Interval Goals • • Well Control • Drill to TD and run casing • Successful cement job 4%s. 3.0.3 Mud Maintenance and Operations Discussion,Mud Type: 8.8 ppg ''pud Mu' System Target Properties: Spud Mud MD MBT Mud Plastic Yield API H9-4 Weight Viscosity Point ml p 0'-2,500' 8.8-9.5 15-30 40-65 25-35 <12 8.5-10 System Formulation: Spud Mud Drillin l Fluid Product Concentration Cold Fresh Water SODA ASH 0.15 ppb AQUAGEL 25 ppb X-TEND II - 4.1 ppb Yry CAUSTIC SODA0411' ppb (8.5 .,0 pH) DRIL-N-SLIDE needed for sti Clay Operations Summary The 16"hole will he drilled out of the 20"'conductor from+/-80 ft MD to TD at 2500', using a Bentonite extended spud mud. West end Prudhoe surface holes typically don't have the large unconsolidated gravels seen in the east end. Therefore a relaxed funnel vis 200-250 will be used to drill from surface to below the permafrost,which is expected+/- 1,350 ft. Pump rate and rheology will be the most important factors in cleaning the 16"hole. Maintain minimum 750-850 gpm while drilling the surface hole. Fresh water dilution is a must while drilling this interval. Expect+1 bbl/ft dilution water additions to keep drill solids below 10%. Run all solids control equipment constantly to diminish drill solids build up. Run shaker screens as fine as flowrates and cuttings unloading will allow. Once casing is on bottom,thin mud back accordingly to ensure a goodcement job. 3.1 Intermediate Interval Discussions 3.1.1 Interval Depths: 2,500' —8,790' MD 3.1.2 Interval Goals • Well Control • Maintain Borehole Stability • Prevent balling on drilling assembly 8 Repsol USA HALLIBURTON Kachemach#1 ver. 1.0 Baroid Prudhoe Bay AK/U.S.A. ■ Efficient hole cleaning 3.1.3 Mud Maintenance and Operations Discussion Intermediate: 6% KCL/PHPA Target Properties Mud Plastic Yield API HTHP MD MBT through pH Chlorides LGS Weight Viscosity Point ml Shale mg/I 2,500' - 9.4-10.4 8-15 20-30 <12 <6 <10 9.0-10 30,000 ` 6.5 8,790' System Formulation: 6% KCLPHPA 9.4 ppg Drilling Fluid(2,500'-7,671') Product Concentration Water 0.894 bbl BARAZAN D+ 1 ppb KC1 22 ppb PAC L 2 ppb CAUSTIC SODA 0.1 ppb (9.0-10.0 pH BAROID 41 57 ppb (as needed for 9." ALDACIDE G 0.2 ppb EZ MUD DP .75-1.0 ppb(Mud plant mix 0.1" ` a add remainder at rigsite) Baracor 700 1.0 ppb Barascav D 0.5 ppb System Formulation: 6%KCL/PHPA 10.4 ppg Drilling Fluid (7,671'-8,790') Product Concentration Water 0.894 bbl BARAZAN D+ 1 ppb KC1 22 ppb PAC L 2 ppb pr CAUSTIC SODA 0.1 ppb (9.0-10.0 pH) BAROID 41 92 ppb (as needed for 10.4) ALDACIDE G 0.2 ppb BAROTROL PLUS 4 ppb EZ MUD DP .75-1.0 ppb(Mud plant mix 0.15 ppb max add remainder at rigsite) Barascav D 0.5 ppb Baracor 700 1.0 ppb Special Mixing Instructions: • Mix in order as listed • Add polymers slowly to minimize fisheyes. Mud Type: 6%KCL/PHPA 1.Mud weight: Allow the density to rise from 9.4 ppg toward 9.8 ppg prior to the weight up at 7,671'. The mud will be weighted up to 10.4 ppg at 7,671' prior to drilling HRZ Shale. The use of solids control and dilution must be employed to maintain these mud weights. 9 Repsol USA HALLIBURTON Kachemach#1 ver. 1.0 Harold Prudhoe Bay AK/U.S.A. 2. Rheology: While drilling, maintain the YP between 20 and 30. Pump sweeps throughout the interval as needed. Optimized mud rheology and flow rate will be the primary mechanisms for achieving good hole cleaning. Mix KC1 alongside EZ MUD DP on the rig hopper to avoid fisheyes. 3. Other issues: Add EZ MUD DP at 0.15 ppb at the mud plant,the remaining 0.6 ppb can be added at the rigsite. This will ensure the shakers do not run over when the PHPA is introduced. BAROTROL PLUS will be added at the weight up point for shale stability. EZ MUD DP will be lost over the shakers continually, additions must be made to keep the concentration where needed. If the clay pattys on the shaker screens begin to get smaller, there is not enough EZ MUD DP in the system. Clay pattys should be 8-12" in diameter. BARACARBs/Steel Seal can be strung into the system for losses. See LCM decision tree. Lost circulation plans should be discussed, and have LCM products on location prior to drilling the interval. Lubricants are not expected to be needed in this straight hole section. However, if high torque and drag are seen, NXS Lube should be available on location and can be used up 4%.Utilize SAPP prioMo cementing with this mud system. Operations Summary: Displace the well to 9.4 ppg 6%KCl/PHPA after drilling the 13 3/8"float equipment.Maintain th roduct concentrations when dilution water is added. Maintain the mud as clean as possible while drilling. Should sweeps be necessary,a Hi Vis sweep is recommended. Prior to drilling into the HRZ at 7,671',the mud weight should be raised to 10.4 ppg and 4 ppb BAROTROL PLUS will be added. Sweep Formulation: Hi Vis Sweep- 60 bbls of mud with 4 sacks BARAZAN D+added. Suggested Drilling Parameters Pump rate and drill string rotation shouldptimized through the real-ti,°- use of the DFG software for the actual ROP while drilling. AO Mt Rheology, and pump rate are critical factors in cleaning this wellbore. Consider the following practices if hole cleaning becomes and issue: • extended periods of circulation (with maximum pipe rpm,targeting> 100 rpm) • „ ole cleaning sweeps (change flow regime of base mud by using density or rheology for carrying capacity) • ,l nection practices-employingextended gpm,rpm and back reaming,prior to the connection Hazards/Concer i,termediate Interval: • Well Co • Stuck Pipe • Wellbore Stability 3.2 Production Interval Discussions 3.2.1 Interval Depths: 8,790' MD-10,600' MD/10,600' TVD 3.2.2 Interval Goals • Well Control 10 HALLIBIJRTDN eRepsol USA Kachemach#1 ver. 1.0 E3aroict Prudhoe Bay AK/U.S.A. 3.2.3 Mud Maintenance and Operations Discussion Production: 6% KCL/PHPA Target Properties Mud Plastic Yield API HTHP CI MD Weight Viscosity Point MBT ml through pH LGS Shale 8,790'- <10 30K 10.4 8-15 20-30 <14 <6 9.0-10 6.5 10,600' System Formulation: 6% KCL/PHPA 10.4 ppg Drilling Fluid Product Concentration Water 0.894 bbl BARAZAN D+ 1 ppb KC1 22 p.b PAC L 2ppb CAUSTIC SODA 0.1 pp. 0.0 pH) BAROID 41 92 ppb or 10.4) ALDACIDE G 0.2 ppb BAROTROL PLUS 4 ppb EZ MUD DP .75-1.0 ppb + d plant mix ppb max add remainder at rigsite) Barascav D ti `'0.5 ppb Baracor 700 1.0 ppb Mud Type: 10.4 ppg 6°%KCL/PHPA' ; 1.Mud weight•. Utilize the mud salvagable from intermediate hole section. Maintain the mud weight at 10.4 ppg and use dilution fluids as needed to keep drill solids below 6.5%. The use of solids control and ,- dilution must be employed to maintain these mud weights. Always maintain mud product additions while adding dilution water. 2.Rheology: While drilling, maintain the YP between 20 and 30. Pump sweeps throughout the interval as needed. Optimized mud rheology and flow rate will be the primary mechanisms for achieving good hole cleaning. Mix KC1 alongside EZ MUD DP on the rig hopper to avoid fisheyes. 3. Other issues: Lubricants are not expected to be needed in this interval. BARACARBs/Steel Seal can be strung into the system for losses. See LCM decision tree. Lost circulation plans should be discussed, and have LCM products on location prior to drilling the interval. Operations Summary: Drill the 8 'h"hole from the casing at 8,790' to TD at 10,600'. If sweeps are needed a Hi Vis sweep is recommended through the shale section.Maintain the BAROTROL PLUS,EZ MUD DP and 6%KCl through interval. Maintain tight filtration control from the shales to TD. 11 HALLIBURTON RUSA epsol Kachemach#1 ver. 1.0 e a ro l d Prudhoe Bay AK/U.S.A. Sweep Formulation: Hi Vis Sweep-60 bbl of mud with 4 sacks BARAZAN D+ added. Suggested Drilling Parameters Pump rate and drill string rotation should be optimized through the real-time use of the DFG software for the actual ROP while drilling. Rheology, pipe rotation and pump rate are critical factors in cleaninget devia d wellbore. Consider the following practices if hole cleaning becomes and issue: • extended periods of circulation(with maximum pipe rpm, targeting> 100 rpm) • hole cleaning sweeps(change flow regime of base mud • using density or theology for carrying capacity) • connection practices-employing extended gpm, r and back reaming,prior to the connection • 3.2 Bypass Interval Discussions 3.2.1 Interval Depths: 7,175'MD—10,381' MD/10,380' TVD 3.2.2 Interval Goals - f>u • • Well Control 3.2.3 Mud Maintenance and S � t,Discussion Bypass: 6% KCL/PHPA Target Properties Mud Plastic Yield API HTHP Cl MD Weight Viscosity Point MBT ml through pH LGS Shale 7,175' <10 30K 10.4 8-15 20-30 <14 <6 9.0-10 6.5 10,381' System Formulation: 6% KCL/PHPA 10.4 ppg'Drilling Fluid Product Concentration Water 0.894 bbl BARAZAN D+ '_t 1 ppb KCl 22 ppb PAC L 2 ppb CAUSTIC SODA 0.1 ppb (8.0-10.0 pH) BAROID 41 92 ppb (as needed for 10.4) ALDACIDE G 0.2 ppb BAROTROL PLUS 4 ppb EZ MUD DP .75-1.0 ppb(Mud plant mix 0.15 ppb max add remainder at rigsite) NXS-LUBE 2.0 %v/v (as needed at rigsite) Barascav D 0.5 ppb Baracor 700 1.0 ppb 12 Repsol USA HALLIBURTON Kachemach#1 ver. 1.0 Baroici Prudhoe Bay AK/U.S.A. Mud pe: 10.4 ppg 6%KCL/PHPA 1.Mud weight: Utilize the mud salvagable from intermediate hole section. Maintain the mud weight at 10.4 ppg and use dilution fluids as needed to keep drill solids below 6.5%. The use of solids control and dilution must be employed to maintain these mud weights. Always maintain mud product additions while adding dilution water. 2.Rheology: To begin milling the window, use a 35 YP to carry metal shavings to surface. While drilling, maintain the YP between 20 and 30. Pump sweeps throughouek interval as needed. Optimized mud rheology and flow rate will be the primary mechanisms foiNchieving good hole cleaning. Mix KC1 alongside EZ MUD DP on the rig hopper to avoid fisheyes. 3.Other issues: Lubricants are not expected to be needed in this interval, if torque and drag becomes an issue mix NXS Lube as needed to 4%to aid in sliding and rotational torque reduction. BARACARBs/Steel Seal can be strung into the system for losses. See f;CM decision tree. Lost circulation plans should be discussed and have LCM products on location prior to drilling the interval. Operations Summary: Drill the 8 Y2"hole from the window at 7,175' to TD at 10,381'. If sweep are needed a Hi Vis sweep is recommended through the shale section.Maintain the EZ MUD DP,BAROTROL PLUS and 6%KC1 through interval. Maintain tight filtration control from the shales to TD. Sweep Formulation: Hi Vis Sweep-60 bbl of mud with 4 sacks BARAZAN D+ added. Suggested Drilling Paramet Pump rate and drill string +tate: •uld be atimized through theteal-time use of the DFG software for the actual ROP while drilling. • %, • • -,,,-- Rheology, pipe rotation and pump rate are critical factors in cleaning this deviated wellbore. Consider the following practices if hole cleaning becomes and issue: • extended periods of circulation(with maximum pipe rpm,targeting> 100 rpm) • hole cleaning sweeps(change flow regime of base mud by using density or rheology for carrying capacity) • connection practices -employing extended gpm,rpm and back reaming,prior to the connection 13 HALLIBURTON RUSA epsol Kachemach#1 ver. 1.0 earoics Prudhoe Bay AK/U.S.A. 5.0 Appendixes 5.0.1 SWEEPS While using sweeps, we need to keep several things in mind. They are neither a miracle nor a cure-all. They are a specific tool and have a specific application. Sweeps have been proven effective in increasing ability to clean the hole when using the proper sweep for the appropriate scenario. If not prop-, used,there will be little, if any, benefit. nK E Dos: • Calculate the height of the sweep in the vertical part of the annulus H • , ulate the added hydrostatic head in the annulus.Always pump a minimum of 500' annular volume • Check ECD/FIT parameters before deciding to use a weighted sweep. • Pump the sweep while rotating at maximum allowable rotating speed. • Schedule the sweeps to allow for both time and footage minimums. Since baritguild-ups are dependent on both, we recommend every 6-8 hours or 300-500 feet, whichever comes first unl ho,.- dictates greater frequency. • When the sweep clears the bit, keep pumping and rota Tng until the sweep is well into = vertical part of the hole. If the pumps are stopped while the sweep is in the deviated hole it will fall out of the "flow path" and redeposit much of the fines it captured. • Consider all factors when deciding on a strategy, including ROP, hole angle, are you sliding or rotating ahead.Answering these questions will he 'de which sweep to pump apd the pumping frequency. Don'ts: • Do not viscosify weighted sweeps. Dilution -, be - a eep viscosity is held to a minimum. • Do not allow more than one weighted sweep in ulus at a • Do not check for flow or close the Hydril with th," eighted sw p in the drill pipe. • Do not look on a shaker screen coarser than 210 -sh for the full effect of the weighted sweep. 175's may show 10— 15 % f the fines removed. • Do not count on major benefit from a single sweep etimes three or four sweeps are necessary to achieve desired results. • Do not count on benefiting from a sweep that is pumped while sliding. The lower side of the annulus under the drill pipe cannot be properly cleaned while sliding. 5.0.2 Testing at the Well sight e • During normal drilling'':`;aerations one complete mud check should be run every 6 hours with a lagged sample tested. This i total of four complete checks made over a 24-hour period. Timing for mud checks and cost cut-4.W= should be worked out with the drilling foreman. Unusual circumstances and/or non-circulating perio s should dictate deviations from this schedule. • All rheological properties (i.e. 6-speed readings and gel strengths, including 30-minute gels) should be taken at the standard 120°F. 5.0.3 Routine Sampling • Mud samples (1 QT) should be sent in any time the need arises, i.e. hole problems, lubricant problems or shaker blinding. • Samples of the mud plant built fluids, will be tested prior to shipment to the rig site and saved until the well is completed. 14 HALLIBURTON eRepsol USA Kachemach#1 ver. 1.0 Baroid Prudhoe Bay AK/U.S.A. • Samples of new mud delivered to the rig site, will be checked for weight and rheology at a minimum, prior to offloading into the rig pits. 5.0.4 Supporting Lab Data ■ These systems have been run numerous times with similar properties. Lab testing has been done for all of these mud systems on offset wells. Houston Lab test#64051/64046/87937/70720 • Offset wells and pad data collected in this mud program were from the *flowing sources: Kuukpik#1,Oooguruk-1 '640 5` ,,,T: ', , ,/. 'r:f"' / iii , Yom, , 3` 15 REPJ OL J-5 Area Pore Pressure Prediction 1` ,,,„ a 0 .,, TKarrS 4 r. CH 4 cr.M •••. a o .St 0 •�a4 Q �i Q 0 • Fladd a:b-e 3 �FpW, Fw�alF� O O ;J �� y,0,,,equa-A 7..'H-2 11131 666•6•d, i. (5 U Thm )�a (� p a O ��Vw��w V 63p .3 Fars CH,S �•n+swa�a 0 p 0 Op liv! ., ,, °.R,444100424) -•vw6..r.2 • ' R; 0 4 °o pg�•: • �O.w:a �v,>wF °a"�rt.,.rw i �� 0 o c-. , n 1 ewe 0 ;7 ' �� o"` S7 0 0 �os��l �p §"` 00y Q K4"flA .um2rtm fJ r ••ve ers p V� 2;'� f�C V • K.F.r..Rar UrW wren l O oo U V q( v '1"1".."." • toH � • es o 4 ) 0 � go �Q o •moo '' 9 I41 -—1 �! *? {�0 � , .Ti.4,l}p 1—\\ , -,, J 4�r-,�. ate, { t (I. 04 --"r' ,_° C S ..�, .,„, t ' `. )era , �N "44 •Legend WN.<9 Dann 9 1r �(^ 7 t17-1-1;:e+.7?' i°""�,W'w Y .�s �' ome,wdn,a.000 n r- 0 ci �� S t - f,F fJ • Ri9so�2012 We''' 3..f, C G cin ¢ t ,. Per:Auaan Unlit y!j G "i ;..i:: _ Q -'' ,...11.0.10 a , ou.ey,K.y. ea , v. ✓ •" C 14 i! 24 0 J 6 t 6616. 11,......, Irk ....M �. Repsol Seismic Attributes Group R 2001 TimberlochepsolServices PlaceCompany,Suite 3000, The Woodlands,Texas,77380, USA Tel: 281-297-1000 December, 2011 REPJOL mom J-5 Area Pore Pressure and Shallow Hazard Project 1. Purpose The goal of this report is to show the results of the well based pore pressure analysis for the proposed locations in the J-5 area,Alaska. 2. Summary A geopressure analysis for the locations in the J-5 area was performed using offset well information. Overburden gradient, fracture gradient, travel time (DT) normal compaction trend, resistivity (RT) normal compaction trend, DT to pore pressure gradient relation and RT to pore pressure relation were generated from the Narvaq-1 well. The pore pressure gradient, fracture gradient and overburden gradient estimated at the offset well were used to generate a local geopressure model for the locations in the J-5 area. ` Nr1, 1,11200 SOMA �� r><1 - h t -^ Oi..;.• • Kt9m IHkaNAkut-i0 Kpent D y. 0 • 0949991930099199 - CehW.NW 51r 4 r„�l�'...Q p '." KeulpIk4 •N,Nchq'1 .. iS Q 0 00 FwMSPs • l7 i • • eoHre Della-3 {"f la.tua�NSNq.IK �COM•IF U.W.15.1 r7 v ldl-i 1 `, ii i Fiord 2A - Tamptaiiae.l C y�'C n��' .390•1909,c,909-1� ��1e.firer 41�r W041• � Placrr.2• Ugnv.1 L)tJ� V �o z�` •Nm'o�.;gF�ry d PA #Plazar:Y d 6 t. os'*"?"'" Lok i 2 ih r- Keukpuk 1 4 Crbo1 X91 Ko Rlw�l 067 cJ ct 1 n •• "jr",• 4.1 40c''''''' cf .r o �©4 ' �, 0 V f• - ^�f K W k it Um12K-IT 0 't, • KuPa.�k Nrvsr Unu Yrt-MRacktivur-1 O 41 p o :.'"°'22«..2 v.7i' • • 0 11 Atlas 1A 0 (� 9 vat c� 0.21912.1 61 1Q.{�C! i— # �,j V Dv • . 9 0 Clydues to.Spirgs Una.] 1JS)� ry G • �� a U U...`1 ISi kOW.Rt.,.FFdoral Unit-1 1_,l e"°) o, l a c` O 1 -. CO Legend .' oi': I) �' # xk FAR, ty r)ci a }I I j• C '7. k 2 ^, °Not 11e119 9,000 N ti( c'.. ,/",./.'7 +- / t te-. � fjY ig 1.0 '" .• Rep of 2012 Webs 3-11 n '" r - l'""I_AW' -vel'- U 0 t P41.s ; ,- 3.12...,. Produallon Units '" 34 O f 4a B.B UN-1 ✓p'. 0 3 0 12 10 24 {:47 534 _ ! �My1q` 414 f. • Figure 1: Location Map. Geophysics Madrid Unit- Seismic Attributes Group 1 REPJOL J-5 Area Pore Pressure and Shallow Hazard Project 3. Pore Pressure Prediction Methodology The overburden gradient for the analogue well was generated from a composite RHOB log. The RHOB log was created by combining shallow density values using the Miller method and log density measurements. The Miller density relationship was used to generate the density data in the shallow section. This new density profile was then integrated to establish the overburden gradient used for pore pressure and in-situ stress analyses for the target well. The pre-drill pore pressure prediction model for the J-5 area was based on a formation compaction mechanism. Eaton's method was used with the resistivity data. Sonic DT data was analyzed using Bower's normal compaction trend. Model predictions were calibrated to available well data such as measured pressure data, mud weight, losses, stuck pipe, high gas and influxes, etc. Data from offset wells included • Wireline data(Density, GR, Caliper, Resistivity, Sonic,Neutron Porosity, etc.). • Drilling reports, well reports,well data—LOTs, MWs, drilling events etc. Fracture gradients were calculated using the Eaton method calibrated to reported LOT data. This method requires prior estimation of pore pressure and the overburden gradient, along with either a matrix stress (effective stress ratio) dataset or an estimate of the formation's Poisson ratio (v). Due to the limited amount of shear sonic data in the area, an effective stress ratio was developed using LOTs, lithology and other well information and experience in the area. The pore pressure profile at the proposed well location was generated from the interpreted pore pressure at the offset well locations. The result is a pore pressure profile at the prospect locations that was combined with the overburden gradient to calculate the fracture gradient. Geophysics Madrid Unit - Seismic Attributes Group 2 REPJOL 111101. J-5 Area Pore Pressure and Shallow Hazard Project 3.1 Available Data Analogue well data were available for analysis from two wells within the area. Petrophysical data supplied included wireline data (density, GR, SP, resistivity, sonic, caliper), well data (Mud Weights, LOTs and DSTs), and well events (influxes, mud losses, stuck pipe, etc) for the wells noted above. Pore pressure calculations in offset wells were calibrated to RFT/MDT pressures, where available. Other calibration data included lost circulation, stuck pipe, over pull, gas events, and mud weights, all of which helped constrain results from the 1D analysis. This project was performed using the effective stress method. Effective stress methods of pore pressure analyses are based on Terzaghi's effective stress principle. Terzaghi's principle states that pore pressure is the difference between the overburden pressure and the effective stress. Effective stress is the amount of overburden pressure that is carried by the rock matrix. In other words vertical stress minus matrix stress equals pore pressure(Equation 1). PP = 6V- 6E (1) Where: PP=Pore pressure [ppg] aV=Total vertical stress [ppg] aE= Effective(matrix) stress [ppg] 3.2 Resistivity-based Pore Pressure Resistivity is also sensitive to compaction (porosity) and may be used to estimate pore pressure using Eaton's equation (Equation 3). This is an empirical equation that has a form like the Terzaghi's expression. It also uses a normal compaction trend, but in contrast to the equivalent depth method, the resistivity is compared to the normal compaction trend horizontally rather than vertically. Geophysics Madrid Unit - Seismic Attributes Group 3 REPJOL mai J-5 Area Pore Pressure and Shallow Hazard Project Pp= OBS— [(OBG- PH) (R/R\)'1 (2) Where: Pi,= Pore pressure gradient [ppg] OBG = Overburden gradient [ppg] PH=Normal pore pressure, usually 8.5 [ppg] Ro=Observed shale resistivity [ohm-m] RN=Normal compaction shale resistivity [ohm-m] X=Empirical exponent calibrated to the well log information 3.3 Sonic-based Pore Pressure The Eaton Method is one of the more widely used quantitative methods. This method applies a regionally defined exponent to an empirical formula. The exponential is calculated using directly offset well information. This approach facilitates the calibration of the Eaton Model for different parts of the world where it may be appropriate for application. Eaton's method (Equation 3) uses the principle that rocks with equal acoustic travel time have equal levels of effective stress. Bower's normal compaction trend parameters are developed by fitting the Bower's normal compaction trend to known effective stress and travel time data at the analogue well. These parameters are used to generate the normal compaction trend at the target locations. Once the normal trend is known at the target location, the Equivalent Depth method is applied to the travel time data to determine the pore pressure. Pp= OBS— [(OBG-PH) (Vp/Vp-Nf l (3) Where: Pp=Pore pressure [ppg] OBG= Overburden stress [ppg] PH= Hydrostatic pressure, usually 8.5 [ppg] Vp=Observed P-wave velocity [m/s] Geophysics Madrid Unit - Seismic Attributes Group 4 REPJOL J-5 Area Pore Pressure and Shallow Hazard Project Vp_N=P-wave velocity for hydrostatic pore pressure [m/s]. X=Eaton's fitting exponent. 3.4 Fracture Gradient Fracture gradients were calculated with the Eaton's method for shale formations. This method requires having previously analyzed pore pressure and overburden gradient curves. Due to the limited amount of compressional and shear sonic data available a Poisson's ratio dataset was generated based on reported LOTs, well events and prior experience in the area using the Eaton fracture gradient calculation. The reported LOT data for some offset wells were used as an approximate calibration of the fracture gradient. Input data for the Eaton's fracture gradient calculation were the definitive pore pressure, the overburden gradient and the Poisson's ratio calibrated to losses and partial losses where possible. The Eaton's model is expressed as follows: FG= OBS— [(OBG - PP) (v/(1- v))] (4) Where: FG =Fracture Gradient [ppg]. PP=Pore pressure [ppg]. OBG = Overburden stress [ppg]. v=Poisson's ratio [dimensionless]. Geophysics Madrid Unit - Seismic Attributes Group 5 REPIOL J-5 Area Pore Pressure and Shallow Hazard Project 4. Offset Well Analysis 4.1 Vertical Stress Analysis Density profiles were generated by combining the near mud line densities with the wireline densities. An overburden gradient (OBG) curve was created by integrating this composite density data. The calculated OBG was adjusted for water depth and air gap (figure 4.1). 4.2 Pore Pressure/ Fracture Pressure Analysis 4.2.1 Pore Pressure Analysis Pore pressure was analyzed by resistivity and sonic methods and was calibrated with MDT and mud weight. It should be noted that sometimes the predicted pore pressures do not completely match the measured pressure data, because the predicted pore pressure is only related to shale formations, and MDT/RFT's measure pressure in permeable formations. 4.2.2 Fracture Gradient Fracture gradients were calculated using the Eaton's method described above. The definitive pore pressure for each well was used as the input pore pressure. An effective stress ratio was obtained by calibrating to the LOT data. If no recorded pressure data was available to allow for the determination of minimum stress, then we assumed that the LOT data were leak off pressures (LOP). The following sections show the offset wells analysis for pore pressures obtained from 1- D pore pressure analysis. 4.3 Offset Wells Analysis The offset well analysis was performed on the Narvaq-1 well. The Eaton's method was used with the resistivity (RT) and sonic (DT) data. Model predictions were calibrated to available well data such as measured pressure data, mud weight, losses, stuck pipe, high gas and influxes, etc. Data from offset wells included: • Wireline data(Density, GR, Caliper, Resistivity, Sonic,Neutron Porosity, etc.). Geophysics Madrid Unit- Seismic Attributes Group 6 REPJOL Mal J-5 Area Pore Pressure and Shallow Hazard Project • Drilling reports, well reports, well data—LOTs, MWs, drilling events etc. Fracture gradients were calculated using the Eaton's method calibrated to reported LOT data. The pore pressure profile at the proposed well location was generated from the interpreted pore pressure at the offset well locations. The result is a pore pressure profile at the prospect locations that was combined with the overburden gradient to calculate the fracture gradient. Narvaq-1 (011)- RHOB Pro ectName: Alaska ioitct_ i Josh CC' i I___,,i '. —IU IOD C/+MI i i S 17-0D3 1 4b 11 > '; 1.N ' 1 -- y �_� -- i VIM \ Mill : ' 1 WOO w_ IMO WEIN mi.„„im EN illTim • _w_ 1___ , _ siiiii ....t Tqi _ _ ., , ..........0000 11111111111111 91100 ,..o — 1.00 2 10 3.00 SAO I? n 16.(0 x0.00 t+e:vaq-1-OH RHOS COMP(g.Ix) Mars-col-I-OH 063 nub(pp) Figure 4.1: Density logs (left) and Overburden Gradient (right). Geophysics Madrid Unit- Seismic Attributes Group 7 REPJOL nooluoin J-5 Area Pore Pressure and Shallow Hazard Project The well Narvaq-1 has a total depth of 9150 ft approximately. This well has one (1) leak off measurement located at 2480 ft with a value of 12.70 ppg. This LOT value gives a calculated Poisson's ratio of 0.34 that is too low. Therefore, a Poisson's ratio of 0.45 was used for the fracture gradient estimation. The value of 0.45 was calculated from the offset well Colville River-1. Figure 4.2 shows the gradient results panel, this panel illustrates that the well has a hydrostatic pore pressure regime from surface to about 7050 ft. After that, there is a geopressure ramp that starts at 7050 ft that increases the pore pressure from hydrostatic to about 9.8 ppg at total depth (TD). It can be observed that the calculated pore pressure curve from the resistivity and sonic log are consistent with the pore pressure model. The drilling window at TD is about 7 ppg. .,1., 8 REPJOL a. J-5 Area Pore Pressure and Shallow Hazard Project Narvaq-1 (OH) - Results CTradients Project None: .11oNka Pa aiect Aiaalvst: l 'C t � 1— x, -el -II-LOT Nei#' -1 FO&ton hit PR--1 —PP INT rnnroq-1 --PG EatonDT PR=0.43 10101 --FO Eldon RT PRS 45 FP Forton RT t YP Eaton DT 3o PS Hydro 2040 200 - --MW —013G rhob Nar aq i 3018 � . 3 j Mil t 1 • 1 4111 i Mr r 04M,T SEABEE F sate KO 1 I � th, T_TORO Y. ^ ; ` —.,3j.rIli- / !0!0 son - t; • a A' L '1 WAIL f _ Y_RIZI) ri 9orn l011 1 4 . RGTT Al TD 1.03 2.60 3.03 800 12!00 16100 20130 Nar3tii4OB OQMP Natvaq WO Nars 1-OH • LAT(ppg) Figure 4.2: Well Colville River-1 gradients results panel. It can be observed a geopressure ramp that starts at 5720 ft approximately and increase the pressure gradient until 10 ppg at TD. Geophysics Madrid Unit - Seismic Attributes Group 9 REPJOL 11111111111111111 J-5 Area Pore Pressure and Shallow Hazard Project 4.4 J-5 Area Model Location Well Based on the 1-D offset well analysis it was generated a model well pore pressure profile for the J-5 area. The pore pressure panel for the model well (figure 4.3) includes the pore pressure gradient the overburden gradient and the fracture gradient calculated using a Poisson ratio of 0.45. 3-5 Area (OII) - Model Location Project Name: Alaska Taro ie cIt,Amalvct- f'C' • JJ i I ( —Hfcdel OB6 Nmvm-1 FG Edon int PR- - PP INT Idaaraq-1 1111 1111.. _ 2000 3080' QM 511111 1111.. 9000 8 0 12100 15100 20 00 Nwaq-1-OH 1bIodel DEO cppe Figure 4.3: J-5 area pore pressure model. This model was generated from the 1-D analysis of the offset Narvaq-1. Geophysics Madrid Unit- Seismic Attributes Group 10 REPJOL 1111111111110111 J-5 Area Pore Pressure and Shallow Hazard Project 5. Shallow Hazard Analysis The goal of the shallow hazards analysis is to identify under-compacted formations, shallow gas accumulations and gas hydrates zones that can represent a drilling hazard. 5.1 Under-compacted formations After the analysis of the available seismic data, regional drilling reports and geological information it was determined the risk of shallow gas sands and under-compacted formations is none to low in the J-5 area. 5.2 Gas hydrates Gas hydrates (GH) are lattice like solids made up of water and mainly methane gas produced under low temperatures and high pressures. The most studied gas hydrate is created with methane as entrapped gas molecules. Gas hydrate with methane is stable at the pressure and temperature conditions present in the sediments beneath most of the deep water environments. They represent a drilling hazard because when drilling through a hydrate reservoir, the heat generated by the bit friction can cause the hydrate to dissociate and the freed gas might ignite, causing unpredictable hazardous situations. Gas hydrates are restricted to the shallow sediments (less than 2,000 meters). The GH stability zone requires pressure and temperatures conditions (Figure 5.1) that are found only either in polar continental sedimentary rocks where surface temperatures are less than 0 °C; or in oceanic sediment at water depths greater than 300 m where the bottom water temperature is around 2 °C. Continental deposits have been located in Siberia and Alaska in sandstone and siltstone beds at less than 800 m depth. Oceanic deposits seem to be widespread in the continental shelf and can occur within the sediments at depth or close to the sediment-water interface. N 11 REPJOL 1111111 J-5 Area Pore Pressure and Shallow Hazard Project 40 35 Me I ri cIaJ r°aie i1abkk co 30 25 . .. ;. .. L 20 413 13- 1 0 175 200 225 250 275 300 325 Temperature, K Figure 5.1: Methane Hydrate pressure-temperature stability curve. According to the methane hydrate pressure-temperature stability curve, the J-5 area has the stability conditions for the generation of methane hydrates inside and/or in the base of the permafrost. The well Till-1 mud log shows some areas into the permafrost that exhibit an abnormal high gas log that can be associated gas hydrates(Figure 5.2). Geophysics Madrid Unit - Seismic Attributes Group 12 REPJOL 1111 il 3-5 Area Pore Pressure and Shallow Hazard Project CR Litology RT Total Gas C1-05 Ile .10`00l3 _ 1 m EAL Nat • .L •4.: p :......../. ' r ..‘j:'''''''. -� • �2""1MKXR144M]'4=6t 0 i >�saL 1.10 a wrcwssm.aa- . 1ILL rre_aaea. : A.'...' 06.-00.1.1106101000046 1 .) —i 1 ..'im241=,6it.l1 o . ,' 1 @,Ile wLxr.air 1.14/010 NI AMit. , �' YCirY'1 Ml.NWYlidiiH. •rrri _ -->kQl try a MO{7 .15101, ow HIRT ,,, 1'1, . .. L I 1 • 1 t ,i't-1 . . . J. i L 1 o a,INIM o r-m arta I • LL ...MAIM■.14.0 P t . E::. , - ;.. Figure 5.2: Abnormal high gas log in the well Till-I. I Geophysics Madrid Unit- Seismic Attributes Group 13 I REPJOL J-5 Area Pore Pressure and Shallow Hazard Project 6. Conclusions • The offset well analysis does not show any risky geopressure zone. The studied wells show similar pore pressure profiles with pressure gradient that ranges from hydrostatic in the shallow interval to 9.8 at TD. • The risk for sub-compacted sequences (shallow flows) and shallow gas sands are none to low at the studied areas. • The studied area is located inside a potential gas hydrates zone. 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[Michael.Quick@asrcenergy.com] Sent: Thursday, January 05, 2012 4:02 PM To: Schwartz, Guy L(DOA) Cc: Davies, Stephen F (DOA) Subject: RE: Kachemach 1 (PTD 211-161) Guy— Yes sir. Please let me know when the PTD is finalized, and I will stop by the office to pick it up. Best regards, Mike Michael Quick Drilling Engineering Team Lead I REPSOL Exploration ASRC Energy Services E&P Technology, Inc. 3900 C Street, Suite 702 Anchorage, AK 99503 Desk: 907-334-1576 I Cell: 907-317-2969 From: Schwartz, Guy L(DOA) [mailto:guy.schwartz@alaska.gov] Sent: Thursday, January 05, 2012 4:00 PM To: Quick, Michael J. Cc: Davies, Stephen F (DOA) Subject: Kachemach 1 (PTD 211-161) Mike, Per our phone call today I wanted to document the discussion we had about: 1) Need for FIT after milling window in the Cored Wellbore sidetrack 2)The change in Surface casing pressure test from 1500 psi to 2500 psi . 3)Well naming: If you decide to drill the Cored Wellbore sidetrack the original wellbore (vertical well)will become Kachemach 1-PH1 (API 50-103-20646-70)and the Cored wellbore will become Kachemach 1 . Either way a P&A sundry will need to generated when the well is abandoned. Regards, Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) 1/5/2012 Davies, Stephen F (DOA) From: COBOS, CARLOS [carlos.cobos@repsol.com] Sent: Thursday, December 22, 2011 12:23 PM To: Davies, Stephen F (DOA) Cc: VILLALOBOS VENCELA, LORENZO; KILLION KILLION, ROBERT NEWTON Subject: Shallow Hazard Analysis for J-5 and Qugruk areas Dear Mr. Davies, We analyzed the available 3D and 2D post-stack seismic data for shallow gas and under-compacted formations. The analysis was performed based on the amplitude extraction from the surface to 800 ms every 120 milliseconds; everything deeper than that was not considered as a shallow hazard. Shallow gas and under- compacted formations have lower impedance than the compacted brine filled sands,therefore we were looking anomalous negative reflectivity zones or suspicious dimming areas. Additionally, we analyzed key vertical sections for lost of reflectivity coherence and vertical chimneys that could be associated to gas leaking. Finally, we studied the available well log data to understand the regional compaction trend and its elastic behavior. The results can be summarized: 1. The well log data indicated that the shallower zone was part of the permafrost area. There is not shallow gas accumulations in this zone. The main shallow hazard, in this zone, is associated to gas hydrates. Gas hydrates represent a drilling hazard because when drilling through a hydrate reservoir, the heat generated by the bit friction can cause the hydrate to dissociate and the freed gas might ignite, causing unpredictable hazardous situations. Just beneath the permafrost is possible to found gas hydrates intervals too, the well Till-1 shows some high gas count zones in the lower part of the permafrost and just below the permafrost. Bellow the permafrost the rock is already consolidated and there is not risk of under-compaction formation. 2. The analysis of the seismic amplitudes maps and the vertical sections did not show any large amplitude anomaly that could be associated to shallow gas accumulations. In the analyzed vertical sections, we did not found any lost of amplitude coherence, chimneys or time sags that could be associated to gas in the first 800 ms of seismic data. I hope this would answer your questions. 1 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME - (1._c-4 _6 12 t,-L & l PTD# l ( /6 I Development Service V Exploratory Stratigraphic Test Non-Conventional Well FIELD: E-�O it'17 6' 7-(6)-1- j POOL: Check Box for 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 • (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. I'I PILOT HOLE i In accordance with 20 AAC 25.005(D, all records, data and logs acquired for the pilot hole must be clearly differentiated in both / (4) '4' ' well name ( PH) and API number ( ''( -.° (50- - - ) from records, data and logs 1-e acquired for well . SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to 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. 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. k . If Repsol chooses to drill a bypass wellbore to obtain conventional core, in accordance with 20 R-- AAC 25.005(f), all records, data and logs acquired for the original wellbore must be clearly labeled with the well name Kachemach No. 1PH and the API number 50-103-20646-70-00. All records, data'and logs acquired for the bypass wellbore must be clearly labeled Kachemach No. 1 with an API number of 50-103-20646-00-00. E L71 0) D O 0 2 5 O O O 7 U. N C N. > C 0, C 0) L O C, CL a ill U O !q. E O o. co� @ : 0. W. .c ! . a, 2 ca a _ o = E. -0= 0 ca o, -@o as @. vi• 0. -o 47. (0 w _ o a w' 3, a 3 c� CO a) a c0 a E 6 0 (V -0 o = 3. va To 4 0 N. 12 O� My N o 0_ O, .N O: O hE , 'a�, . 2n" c z 2' I O c ao' U O E, w •0� o)' aa,- .� m. 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O, @ 'c -) O- E 0 C, 0 U !n 0 0 0 0 0 0 . . 0 co a 0 s a o > > > 0) o a 0. 0 w. w. a) Y aoi t' . a 'E ) 00o 0 Yo. a`), 6 c 0 0' 0 a v; 4 0: ill a`) ca l."_0 3 t o. 0 M' M M, m. v. co, -00; (o C O O. .0c. o a a : a0 m', a a), o a za _ D � �' � U) • OOa ac.) saa; Uu) UUc) c) Q _ Q4 o mma5', 2M', a owcoU W n N M V (n O O N M �t O ao 0) O N M V (0 CO h CO 0) = E ,- N CO 'r (n (O P coa) ON N N N N N N N N N M M (') M M cococococo V 0 _ j". 6 O C 2 N 0 O O N V CO l0 co @ N fa LV w E N E O -.1 N H d 0 E I W a E qQ p c C4 _1 0 a a U y a .4C a w a 0 Q k'Vell {-ilstory File APPENICX Infoiniation 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. Kachemach - 1 Well REPlOL 11101 Data Transmittal Information KACHEMACH-1 BINDER INDEX The technical data listed below for the work performed in the Kachemach-1 well is being submitted herewith. Please find enclosed the following information: Summary list of logs performed and depth interval logged 1 hardcopy List of formations and other geological markers 1 hardcopy Summary and Field Report of Sidewall Cores 1 hardcopy XPT summary 1 hardcopy Sample shipping manifest 1 hardcopy Miscellaneous DVD 1 DVD - Includes a digital copy of all document listed above - Mudlog composite plot - Mudlogging data - Logging While Drilling data - Wireline 12.25" and 8.5" Open Hole data Please address any problems or concerns to the attention of: Repsol Ricard Fernandez Torrent 2001 Timberloch Place,Suite 3000 The Woodlands,TX, 77380 Phone: 281-297-1058 Email: rfernandezt@repsol.com Repsol Alejandro Martin Vicente 2001 Timberloch Place,Suite 3000 The Woodlands,TX, 77380 Phone: 832-442-1478 Email:alejandro.martin@repsol.com Logging Summary Kachemach-1 Logging While Hole Size Services Depth Drilling 16" GR_Rt_APWD 270ft-2396ft 12.25" GR_Rt_APWD 2396ft-8618ft 8.5" GR_Rt_APWD 8618ft-10156ft Open Hole Logging CVL GR 8575.5ft-2180.5ft Run#1A ZAIT GR 8575.5ft-2180.5ft ZAIT-DSI-PPC-GPIT-GR DIPOLE 8575.Sft-2180.5ft ZAIT PPC DSI Main Pass 8575.5ft-2180.5ft ZAIT PPC DSI Repeat 8530ft-7818ft Run#16 FMI-GR FMI_GR Main pass 8578ft-2308ft FMIGR Repeat Pass 8580ft-7792ft 12.25" CMR_GR Main pass 8565ft-2183.1ft Run#1C CMR-PEX*-ECS- 0� HNGS ECS_HNGS_GR Main Pass 8567.Sft-2328ft CMR_ECS_HNGS_GR Repeat pass 8572ft-7951ft Run#1D CMR-PEX-GR PEX GR Main Pass 8526ft-2289ft CC') CMR_Verification Pass 8158ft-7924ft Run#1E XPT-GR XPTGR 8175ft-2656ft Run#1F MSCT-GR MSCT GR 8368ft-2800ft O Run#1G MSCT-GR MSCTGR 8368ft-6564ft Run#2A AIT-CMR-PEX-ECS- AIT CMR PEX ECS HNGS GR Main 9855ft-7938.5fft HNGS AIT CMR PEX ECS HNGS GR Repeat Pass 9112ft-8703ft O Run#2B FMI-DSI-GR FMI_DSI � _GR Main 10136.Sft-8536.Sft FMI DSI GR Repeat Pass 9155ft-8793ft r .4 8.5" Run#2C MSCT-GR MSCT GR 10095.9ft-9515ft \\� Run#2D MSCT-GR MSCT GR 9949ft-8713.5ft '' �\V Run#2E VSI VSI 9904,8ft-304,8ft Run#2F AIT-PEX-ECS-HNGS- AIT PEX ECS HNGS 10117ft-9500ftt GR Coring-SWC 12.25" 49/43 Recovered Rotary 2800ft-6368ft sidewall cores 13/3 Recovered Rotary 12.25" 2800ft-6368ft sidewall cores 8 5" 18/16 Recovered Rotary 8713.5ft-9775ft sidewall cores 19/14 Recovered Rotary 8.5" 9515ft-10095.9ft sidewall cores Mud Logging Services \� ' Masterlog,gaslog,Engineering log,geopressure Q� 16" Mudlogging Service log 111ft-2410ft Mudlogging Service and Masterlog,gaslog,Engineering log,geopressure 12.25" Fluid In-situ analisis(Flair) log,Isolog,InOutLog. 2410ft-8650ft C:7 Mudlogging Service and Gas Masterlog,gaslog,Engineering log,geopressure O 8.5" In-situ analisis(Flair) log,Isolog,InOutLog. 8650ft-10156ft Mudlogging O Samples Unwashed cuttings Every 90ft to 1400ft;then every 30ft to 2410ft 111-2410ft Washed&Dry Cuttings ,� 16" Isotubes. 540ft-2410ft Geochemical jars Every 90ft 111-2410ft Mud samples Change on mud propierties 111-2410ft 1} Unwashed cuttings Every 30ft;10 ft every interesting zone. Washed&Dry Cuttings 2410ft-8650ft 12.25" Isotubes. 2410ft-6200ft/6290ft-7590ft/7640ft-8650ft Geochemical jars Every 90ft 2410ft-8650ft Mud samples Change on mud propierties Unwashed cuttings Every 30ft;10 ft every interesting zone. 8650ft-10156ft Washed&Dry Cuttings 8.5" Isotubes. 8650ft-8700ft/8710ft-9022ft Geochemical jars Every 90ft 8650ft-10156ft Mud samples Change on mud propierties � O C:1 Q Well Geological Markers PAD NAME: Kachemach-1 API# 50-103-20646-00 OPERATtrk- ~ Repsol SURi'ACJ `LOCATION: SW/SE sec 31 T8N R8E TION X/Y ft X: 471,669 ft Y: 5,851,658ft IO% OUNTY: North Slope Borough CIP STATE: Alaska WELL TYPE: Exploration COORDINATE DATUM NAD 27 UTM ZONE 6N -Meters BH LOCATION X/Y m 348510 7824606 TG LOCATION X/Y m 348510 7824606 TARGET Nanushuk GL: 415 Pad Thick 1.0 KB: 28 KBMSL 444.0 HORIZONS DEPTH (ft) MDRT TVDSS 1,209 -764.0 Upper Schrader Bluff Base Permafrost 1,390 -945 Middle Schrader Bluff 2,840 -2,396 3,375 -2,930 - Lower Schrader Bluff MCU 4,637 -4,192 - 4,726 -4,281 Tuluvak Sst./Seabee Narvaq Fan SS - - - - - 6,951 -6,506 - 7,125 -6,680 Torok Torok Fan SS - - - - 7,438 -6,993 - - - 7,752 -7,307 Hrz Shale Kup C 8,018 - -7,573 LCU v 8,023 -7,578 Kup B BCU* 8,943 -8,498 J-5 10,045 -9,599 Sag River Shublik 10,048 -9,602 TD 10,156 -9,710 *Waiting for Paleo to confirm location • Un 0 0 a) C L O a C d m a) a) o N I E U C — >a) 7, 0. a) a a N N• ( a (n 2 . ih a)CLE Co .1.)O aa) O ii N N0 c E 'O N0) LOU w oN• m c .3o N N aN C '= T i 0 0 ' Ny U N > OO0 j iirLcnD .0 3 2 L N YN U C dT 2U a O d .0 L0 2 a On y 0vN 0F NwaL U — O 0 G CC (LI cci a) N C P. 8 a U 0 a. 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Co ^ N N NN 1`r f`,-n N n,-N N N W N-1-N N-N N(M M M M M W W W M W N M M N N N M C?M o N(n D)7 0 1-CD N,-0 M M o M Oi W M N-M 0 t[i N M N-N-n o 7 M 7(0 CO M 7 r'CD 1-1-t0 a 1-N-W W NNNN,-W 1-r,-r r W N'-W 1-W M M M W O O M,-1-N M W N 1-N N,-1-W W 00 000 7 7 M M W W M M W W N-W W W O O O W N W W W W W W W W W W W W W W W W W W W W W W N-N-W W W W N N N N N N N N W W W W W N - co D O N N N N O N O N co 0 0 0 7 N M co.M O O O co co O co O O O N O N N N o 0 0 0 o N 5. N W W O N N M W N W O,r,–,r O W 7 7 O W W 7 W N W.–(n M N W W M N N M N W W a 1-N-W W M N N N•-W 1-N-N N-N-W M e-W 1-W O M M W O O( N-N M W N N N N N W W W OON r D MWWN N N N W OWNNWCOWWWWWWWCOWWWWWWWMDW (O(OCONNNNMDD(O 4 M O N M 7 N W 1-W M o,-N W I�W M O N M 7 N W I�W M O N M O N-W M O N M 0 0 0 0 0 0 0 0 0 0 N N N N N N N N N N M M M M N 7 7 7 7 7 N(n N E • N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N dly .-N M 7 N W 1�W M O N M 7 N W I�W M NNNN N N N N N N N M C')M N M M M M M V 7 X . tl 1 N 1�O W r 0 M N N N M O W N 7 o N O NE0'' W7W MOO NWM7N N N 7NN70M0 ,-NM,{NNNNONONOL 000,–x-NM7NNOCDCD77N0CDM7NN0O M * V F 4444444444 viio(ol. l��CoCoCoCOCoa; 666`-6"in6iri 'iiMUD - cD M - -- - - - - - - - - -- . . . - - , - w000000 . 00 . 0 . 00 . 000 . 0000000 . 000000000000 . 0 IN N IN IN N eV V rsi IN IN n. IN IN INp M ;mmm mmmmmmmm r:mmmmmmmm)m ;;;nm;mmm;m;mM N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y ,,;.,.:: Meow vices Field Shipping Manifest RERFOL Nabors 9ES Washed and Dried Sample Cuttings DATE 4/8/2012 Operator Repsol WELL Kachemech 1 Location ADL391420 FROM Geoservices Nabors 9ES SHIP TO Contact Numbers: AOGCC Geoservices Unit: 907-685-1956 333 W.7th Ave.,Suite 100 Repsol Geologist: Anchorage,Alaska 99501 Ann:Howard(lkland NOTE TO ORIGINATOR:SAVE TIME AND SS-AVOID MISINTERPRETATIONS-USE COMPLETE. DETAILED INSTRUCTIONS IN ORDER FOR THE TERMINAL TO QUICKLY AND ACCURATELY EXECUTE YOUR REQUESTS. These samples belong to The State of Alaska Via Owned Total Weight in QTY FULL DESCRIPTION Transport by Depth Lbs 1 Cardboard Box 1 -Washed/Dried Cutting Samples Repsol E&P 111'-1740' 2.50 Box 90'&30'interval 25 samples 1 Cardboard Box 2-Washed/Dried Cutting Samples Repsol E&P 1740'-2410' 2.50 Box 30'interval 22 samples O Cardboard Box 3-Washed/Dried Cutting Samples 1 Repsol E&P r I 2.50 Box 30'interval 39 samples Cardboard Box 4-WashedlDried Cutting Samples 1 Repsol E&P I O Box 30'Interval 42 samples :r 2.50 1 Cardboard Box 5-WashedlDried Cutting Samples Box 30'interval 38 samples 1 Cardboard Box 6-Washed/Dried Cutting Samples Box 30'interval 42 samples Cardboard Box 7-Washed/Dried Cutting Samples 1Repsol E&P 7059'-8310' 2.50 Box 30'interval 45 samples 1 Cardboard Box B-Washed/Dried Cutting Samples Repsol BSI' 8310'-9000' 2.50 11144 Box 30'8 10'interval 46 samples 1 Cardboard Box 9-Washed/Dried Cutting Samples Repsol E&P 9000'-9840' ��' Box 30'interval 41 samples ����1' 1 Cardboard Box 10-WashedlDried Cutting Samples Repsol E&P 9814'-10156' 2.50 Box 30'interval 11 samples IMO 111.111= Boxes are Marked with Black Tape TOTAL Ober 25.00 �/repared By:Geoservices Crcw. Geoservices Sender Signature:K. id 1 Repsol Geologist Signage: I Please Handle this box and its contents with care! / - ., G- : -•J ` '6`?U Co n f i d e n t i a l Kachemach-1 Field Side Wall Cores Report Section 12.25” Kachemach 1 Colville High Alaska, North Slope Co n f i d e n t i a l Kachemach-1 1. General Well data CLASSIFICATION: Exploration OPERATOR, %: Repsol, 70% PARTNERS, %:Amstrong, 30% COUNTRY: USA BASIN:Colville high BLOCK NAME:ADL391420 CO-ORDINATE REFERENCE S YSTEM:GCS Geographic Coordinates system Geographic Co-ordinates/UTM Zone:UTM6N meters Datum: NAD 27 WELL LOCATION: (SURFACE)Northing:7,769,600m Latitude: 70° 0' 20.826"N Easting: 376,930m Longitude: 150° 13' 34.362"W (BOTTOM HOLE)Northing: 7,769,600m Latitude:70° 0' 20.826"N Easting:376,930m Longitude: 150° 13' 34.362"W SEISMIC REFERENCE: Survey: Meltwater Seismic Reference Datum: 0 Inline: 5464 Crossline: 10766 PAD THICKNESS (ft):1 RIG KB (ft): 28 GROUND ELEVATION: 415 ft from MSL KB ELEVATION:444 ft from MSL Co n f i d e n t i a l Kachemach-1 2. RSWC Summary Table 2.1 Brief Descriptions of the Operation Rotary sidewall coring (MSCT-GR) was performed by Schlumberger in 2 Runs. Run #1G and Run #1F. Samples recovered: Run #1F: 43 (out of 49), Run #1G: 3 (out of 12). The run #1G was stopped due to jamming of catcher barrels. Core catcher barrels were filled with large amount of particles of the mud additives that in this case was Steelseal, mainly composed by graphite. After core jamming, it was decided to POOH and also to finish the intermediate wireline logging program. 2. 2 Proposed Sidewall coring program Run #1F Run #1G 1 8250 16 7487 31 8173 46 7021 1 8368 16 6175 2 8169 17 7450 32 8120 47 6584 2 8169 17 6149 3 8132 18 6595 33 8079 48 6570 3 8122 18 5023 4 8126 19 6592 34 8059 49 6564 4 7242 19 5881 5 8122 20 6578 35 8039 50 6557 5 6570 20 4699 6 8083 21 6561 36 8026 6 6564 21 4633 7 8072,5 22 6096 37 8023 7 6557 22 3998 8 8071 23 5924 38 8022 8 8201 23 6557 9 8055 24 5874 39 8021 9 7941 24 2947 10 8033 25 3160 40 7623 10 7593 25 2918 11 8024 26 3124 41 7501 11 7089 26 2881 12 8020 27 2860 42 7489 12 6985 27 2681 13 8019 28 2800 43 7477 13 6680 28 2670 14 7830 29 8368 44 7242 14 6251 29 2651 15 7644 30 8341 45 7031 15 6200 Co n f i d e n t i a l Kachemach-1 2.3 Logging program performed: Run Time Core Depth (m) Coring Time (s) Indicati on of break Pressu re increas e pushin g core Core recover y, details Comments Run #1F 21:22 1 8250,0 171 y y Stall x 3 Run #1F 2 8169,0 81 y y missing Fast Run #1F 21:40 3 8132,0 72 y y Fast Run #1F 21:46 4 8126,0 72 y y Very fast, 1 x stall Run #1F 21:51 5 8122,0 63 y y missing Fast, big push Run #1F 21:57 6 8083,0 72 y y Fast, big push, cycle open/close Run #1F 22:04 7 8072,5 63 y y Fast Run #1F 22:07 8 8061,0 63 y y Fast Run #1F 22:12 9 8055,0 108 y y 3 x stall Run #1F 22:19 10 8033,0 81 y y trouble retract, 3 tries Run #1F 22:27 11 8024,0 45 y n fast Run #1F 22:37 12 8020,0 207 y y 7 stalls Run #1F 22:41 13 8019,0 237 y y 8 stalls, tough at end Run #1F 23:00 14 7838,0 80 y y Fast, 3 stalls, could be a short core Run #1F 23:05 15 7644,0 72 y y Fast Run #1F 23:14 16 7486,9 54 y y Fast Run #1F 23:19 17 7450,0 54 y n Fast Run #1F 23:45 18 6595,0 72 y n Fast Run #1F 23:52 19 6592,0 68 y n Fast Run #1F 23:58 20 6578,0 54 y n Fast Run #1F 0:03 21 6561,0 63 y n Fast Run #1F 0:09 22 6096,00 81 y n Fast Run #1F 0:21 23 5924,00 63 y n Fast Run #1F 0:33 24 5874,00 51 y n Fast Run #1F 1:00 25 3160,00 36 y n Fast Run #1F 1:04 26 3124,00 72 y y Fast Run #1F 1:16 27 2860,00 90 y n Run #1F 1:21 28 2800,00 72 y n Run #1F 2:19 29 8368,10 98 y n missing Run #1F 2:25 30 8341,00 90 y n twice to retract Run #1F 2:33 31 8173,00 72 y n Run #1F 2:38 32 8120,00 64 y n Run #1F 2:44 33 8079,00 80 y n Run #1F 2:48 34 8059,00 80 y n Run #1F 2:54 35 8039,00 72 y n Run #1F 2:59 36 8026,00 72 y n Co n f i d e n t i a l Kachemach-1 Run #1F 3:05 37 8023,00 54 y n Run #1F 3:09 38 8022,00 84 y n Run #1F 3:14 39 8021,00 43 y y Run #1F 3:21 40 7623,00 72 y y Run #1F 3:26 41 7501,00 60 y y Double marker Run #1F 3:42 42 7489,00 54 y n Run #1F 3:47 43 7477,00 42 y y Run #1F 4:02 44 7242,00 61 y n missing Run #1F 4:10 45 7031,00 58 y y Run #1F 4:15 46 7021,00 50 y Run #1F 4:30 47 6584,00 44 y Run #1F 4:42 48 6570,00 221 y missing Run #1F 4:46 49 6564,00 576 y missing Stalled several times, slow cutting Run #1F 50 Not acquired. Run Time Core Depth (m) Coring Time (s) Indicati on of break Pressu re increas e pushin g core Core recover y, details Comments Run #1G 9:20 50 8368,00 99 missing Run #1G 51 8201,00 99 Run #1G 52 8169,00 90 Run #1G 53 8122,00 45 BROKE N Run #1G 54 7941,00 144 missing Run #1G 55,56 7593,00 missing Run #1G 57 7242,00 63 missing Run #1G 58 7089,00 72 missing Run #1G 59 6985,00 missing Run #1G 60 6680,00 117 missing Run #1G 61 6570,00 missing Run #1G 62 6564,00 missing Co n f i d e n t i a l Kachemach-1 Co n f i d e n t i a l Kachemach-1 3. RSWC Description Run Run ·#1F SWC number 1 Depth (ftMD) 8250 Depth (ftTVD) Formation Miluveach Lithology Shale RSWC Size (in) RSWC Photo (1) Description: Shale, dark grey – bluish grey: slightly bioturbated; no fluorescence; sub-concave fracture; slightly pyritized; strong hydrocarbon odor. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 2 Depth (ftMD) 8169 Depth (ftTVD) Formation Kup B Lithology RSWC Size (in) RSWC Photo Description:missing Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 3 Depth (ftMD) 8132 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, light – medium grey; note centered along the full strike of the core is a very distinctive greenish black micro-bed layer that includes thin (1-2mm thick) black sub- parallel laminations and micro-flow structures and adjacent submerged clay-silt micronodules; some separation points have slightly sub-conchoidal fracture; poor apparent porosity and permeability. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 4 Depth (ftMD) 8126 Depth (ftTVD) Formation Kup B Lithology Silt RSWC Size (in) RSWC Photo Description: Silt, sample is a disturbed mixture of clay, sand (dark grey, very fine, well sorted, rounded-subrounded), stripped mudcake and pervasive LCM particles. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 5 Depth (ftMD) 8122 Depth (ftTVD) Formation Kup B Lithology RSWC Size (in) RSWC Photo Description: missing Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 6 Depth (ftMD) 8083 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, bioturbated silty claystone, with traces of very fine floating sand grains; note complex laminations around bioturbated zones, prominent sub-nodular masses of crystalline and massive pyrite and easily discernible (sparsely distributed) white to colorless fine to medium grains/crystalline particles of calcite; some calcite is concentrated into small masses; no fluorescence. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 7 Depth (ftMD) 8072.5 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium grey, highly laminated, bioturbated, with flow structures, with disseminated pyrite impregnation, fluorescence color was moderate yellow to pale greenish yellow Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 8 Depth (ftMD) 8061 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, light to medium grey, fine grained, rounded, with traces of pyrite, metallic shine, stiff, no fluorescence, Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 9 Depth (ftMD) 8055 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium to dark grey with dark grey – blackish microlaminations, medium to fine grained, moderately sorted, sub angular, pale yellowish fluorescence all over the sample Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 10 Depth (ftMD) 8033 Depth (ftTVD) Formation Kup B Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, dark grey, bioturbated, flow structures, highly laminated with nodules of clay, with small percentage of silt Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 11 Depth (ftMD) 8024 Depth (ftTVD) Formation Kup B Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, medium dark grey, with silty particles medium to fine grained, moderate sorted, rounded, no fluorescence Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 12 Depth (ftMD) 8020 Depth (ftTVD) Formation Kup C Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, fine to very fine grained, moderate sorted, with clay nodules, rounded by calcite coating, small pelecipode, no fluorescence Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 13 Depth (ftMD) 8019 Depth (ftTVD) Formation Kup C Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, very dark grey, silt range grain size, sucrose, very tough, scratches made by coring bit, with pyrite and magnetite, contains siliamorphic volcanic particle traces, fluorescence slightly yellowish Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 14 Depth (ftMD) 7838 Depth (ftTVD) Formation HRZ Lithology - RSWC Size (in) RSWC Photo Description: Clay, very disturbed sample with a lot of LCM and mudcake Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 15 Depth (ftMD) 7644 Depth (ftTVD) Formation Torok Fan SS Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium grey, silt range grain size, very tough, with siderite and ash traces. Siderite has dark yellow to brownish color, light yellowish fluorescence, ash (?) Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 16 Depth (ftMD) 7487 Depth (ftTVD) Formation Torok Fan SS Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, dark to medium grey, silt range grain size with high shale content, very homogeneous, poor porosity, no fluorescence. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 17 Depth (ftMD) 7450 Depth (ftTVD) Formation Torok Fan SS Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone , medium grey, silt range grain size, with dark grey nodules (1,5x3 cm), slight fluorescence – scratch made during coring, fluorescence probably coming from mud. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 18 Depth (ftMD) 6595 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, dark grey, silt range grain size, with traces of devitrified ash, no fluorescence, HC smell Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 19 Depth (ftMD) 6592 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, light to medium greenish grey, medium grain, moderate to well sorted, subangular and subrounded, volcanic ash supported, smectite clays Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 20 Depth (ftMD) 6578 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, light to medium greenish grey, fine grain, moderate to well sorted, subangular and subrounded, volcanic ash/clay supported Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 21 Depth (ftMD) 6561 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium dark grey, moderately indurated, covered by drilling mud Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 22 Depth (ftMD) 6096 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium grey, silt range grain size, moderately indurated Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 23 Depth (ftMD) 5924 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, dark grey to medium grey, highly laminated with traces of silt, no fluorescence Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 24 Depth (ftMD) 5874 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium to light grey, silt range grain size, clayish, highly laminated, bioturbated Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 25 Depth (ftMD) 3160 Depth (ftTVD) Formation Upper Schrader Bluff Lithology - RSWC Size (in) RSWC Photo Description: Very disturbed sample with a lot of LCM and mudcake. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 26 Depth (ftMD) 3124 Depth (ftTVD) Formation Upper Schrader Bluff Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, greenish black (color probably coming from ash material), silt range grain size, moderately indurated, covered by drilling mud Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 27 Depth (ftMD) 2860 Depth (ftTVD) Formation Upper Schrader Bluff Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, dark greenish grey, grain supported, medium to fine grain, well sorted, subrounded, friable, very good poroperm Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 28 Depth (ftMD) 2800 Depth (ftTVD) Formation Upper Schrader Bluff Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, olive grey, grain supported, fine to very fine grain, well sorted, subrounded, fair poroperm Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 29 Depth (ftMD) 8368 Depth (ftTVD) Formation Kup B Lithology RSWC Size (in) Description: missing Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 30 Depth (ftMD) 8341 Depth (ftTVD) Formation Kup B Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, dark grey, homogenous Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 31 Depth (ftMD) 8173 Depth (ftTVD) Formation Kup B Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, medium to dark grey, very homogeneous Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 32 Depth (ftMD) 8120 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, dark to medium grey, silt range grain size, with very thin laminations Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 33 Depth (ftMD) 8079 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium grey, silt range grain size, traces of ash and mica Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 34 Depth (ftMD) 8059 Depth (ftTVD) Formation Kup B Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, dark to medium grey, highly laminated Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 35 Depth (ftMD) 8039 Depth (ftTVD) Formation Kup B Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, dark grey to greyish black, highly laminated with bright yellowish fluorescence Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 36 Depth (ftMD) 8026 Depth (ftTVD) Formation Kup B Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, dark grey to greyish black, moderate laminated Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 37 Depth (ftMD) 8023 Depth (ftTVD) Formation BCU Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, medium grey, moderately sorted, medium to fine grain, subrounded, traces of glauconite, good poroperm Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 38 Depth (ftMD) 8022 Depth (ftTVD) Formation Kup C Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, light grey, fine grain, with sucrose oolitic structure, very limy Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 39 Depth (ftMD) 8021 Depth (ftTVD) Formation Kup C Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, greyish black, homogeneous, no laminations and nodules Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 40 Depth (ftMD) 7623 Depth (ftTVD) Formation Torok Fan Lithology Claystone RSWC Size (in) RSWC Photo Description: Claystone, medium dark to light medium grey, homogeneous Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 41 Depth (ftMD) 7501 Depth (ftTVD) Formation Torok Fan Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, light olive grey, homogeneous Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 42 Depth (ftMD) 7489 Depth (ftTVD) Formation Torok Fan Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, medium to light grey, medium to coarse grain, moderately sorted, subrounded, good poroperm, very friable. Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 43 Depth (ftMD) 7477 Depth (ftTVD) Formation Torok Fan Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, brownish grey to light brownish grey, fine grain, well sorted Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 44 Depth (ftMD) 7242 Depth (ftTVD) Formation Lithology RSWC Size (in) RSWC Photo Description: missing Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 45 Depth (ftMD) 7031 Depth (ftTVD) Formation Narvaq Fan Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, medium to light grey, fine grain, moderately sorted, subrounded to subangular, with traces of biotite, phlogopite (?), good poroperm Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 46 Depth (ftMD) 7021 Depth (ftTVD) Formation Narvaq Fan Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, medium to light grey, medium to fine grain, traces of phlogopite (?), poor poroperm Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 47 Depth (ftMD) 6584 Depth (ftTVD) Formation Tuluvak/Seabee Lithology Sandstone RSWC Size (in) RSWC Photo Description: Sandstone, bluish grey, moderately sorted, subangular, matrix supported with traces of phlogopite (?) and biotite Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 48 Depth (ftMD) 6570 Depth (ftTVD) Formation Tuluvak/Seabee Lithology RSWC Size (in) RSWC Photo Description: missing Co n f i d e n t i a l Kachemach-1 Run Run ·#1F SWC number 49 Depth (ftMD) 6564 Depth (ftTVD) Formation Tuluvak/Seabee Lithology RSWC Size (in) RSWC Photo Description: missing Co n f i d e n t i a l Kachemach-1 Run Run ·#1G SWC number 51 Depth (ftMD) 8201 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, light grey to grey, highly bioturbated, tight, dense Co n f i d e n t i a l Kachemach-1 Run Run ·#1G SWC number 52 Depth (ftMD) 8169 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, medium to Light grey, bioturbated, flow structures, traces of sandstone tight Co n f i d e n t i a l Kachemach-1 Run Run ·#1G SWC number 53 Depth (ftMD) 8122 Depth (ftTVD) Formation Kup B Lithology Siltstone RSWC Size (in) RSWC Photo Description: Siltstone, light brownish grey to olive grey, highly fractured Co n f i d e n t i a l Kachemach-1 4. rSWC Operation Comments (SLB) MSCT toolstring diagram and its specifications. Co n f i d e n t i a l Kachemach-1 5. rSWC Handling and Preservation Comments (Corelab) Slb engineers performed the handling and preservation of all SWC samples and sent it to Corelab. Co n f i d e n t i a l Kachemach-1 Field Side Wall Core Report Kachemach 1 Alaska, North Slope Co n f i d e n t i a l Kachemach-1 1. General Well data CLASSIFICATION: Exploration OPERATOR, %: Repsol, 70% PARTNERS, %:Amstrong, 30% COUNTRY: USA BASIN:Colville high BLOCK NAME:ADL391420 CO-ORDINATE REFERENCE S YSTEM:GCS Geographic Coordinates System Geographic Co-ordinates/UTM Zone:UTM6N meters Datum: NAD 27 WELL LOCATION: (SURFACE)Northing:7,769,600m Latitude: 70° 0' 20.826"N Easting: 376,930m Longitude: 150° 13' 34.362"W (BOTTOM HOLE)Northing: 7,769,600m Latitude:70° 0' 20.826"N Easting:376,930m Longitude: 150° 13' 34.362"W SEISMIC REFERENCE: Survey: Meltwater Seismic Reference Datum: 0 Inline: 5464 Crossline: 10766 PAD THICKNESS (ft):2 ft RIG KB (ft): 29 ft GROUND ELEVATION: 415 ft from MSL KB ELEVATION:444 ft from MSL Co n f i d e n t i a l Kachemach-1 2. RSWC Summary Table Rotary sidewall coring (MSCT-GR) was performed by Schlumberger Wireline Services on Runs 2C and 2D of the 8 ½” wireline logging program. On Run 1C, out of 19 cores attempted, 10 successful undisturbed cores and 5 broken cores were collected. Run 1C was stopped due to jamming of coring tool. The coring tool was unable to cut new cores. POOH and finish first stage of 8 ½” wireline sidewall coring program. On Run 2D, of 18 cores attempted, 9 undisturbed cores, 2 partial cores and 3 broken cores were recovered. POOH and complete 8 ½” wireline sidewall coring program. Planned logging programs: Run 2C 1 10096.0 17 9604.5 2 10091.0 18 9594.0 3 10086.0 19 9561.0 4 10077.0 20 9515.0 5 10069.0 21 9507.5 6 10059.0 22 9449.5 7 10047.0 23 9377.0 8 9989.0 24 9302.0 9 9985.0 25 9135.0 10 9942.0 26 9003.0 11 9936.0 27 8949.0 12 9880.0 28 8919.0 13 9848.0 29 8890.0 14 9775.0 30 8791.0 15 9725.0 31 8757.0 16 9628.5 32 8713.5 Run 2D 1 9949.0 10 9010.0 2 9882.0 11 9003.0 3 9775.0 12 8976.0 4 9725.5 13 8946.9 5 9561.0 14 8920.0 6 9449.5 15 8791.0 7 9373.0 16 8753.0 8 9303.0 17 8713.5 9 9135.0 Co n f i d e n t i a l Kachemach-1 Logging programs performed: Run Time Core Depth (ft)Coring Time (s) Indication of break Pressure increase pushing core Core recovery, details Comments Run#2C 02:45 0.0 Surface calibration, GR, run in hole Run#2C 04:21 Correlation on depth to D&M Run#2C 1 10096.0 297 y y Good 8 stalls Run#2C 2 10091.0 306 y n Broken 6 stalls Run#2C 3 10086.0 117 y Y Good Large push, cleared barrel? Cycled to check hydraulics Run#2C 4 10077.0 112 y Y Good 3 stalls Run#2C 5 10069.0 n n Good Run#2C 6 10059.0 420 y y Good 7 stalls Run#2C 7 10047.0 324 y Good 5 stalls Run#2C 05:40 8 9989.0 105 y y Broken 2 stalls Run#2C 9 9985.0 99 y y Good Good core Run#2C 10 9942.0 75 y y No Core 1 stall Run#2C 11 9936.0 99 y n Good Run#2C 12 9880.0 54 y y No Core fast Run#2C Run#2C Correlation Pass, correlation to WL depth, +9ft Run#2C Correlation Run#2C 13 9775.0 261 y y No Core Stalled, possible jam? Run#2C 14 9725.0 333 y y No Core Stalled – Jam might be cleared after opening and closing a few times Run#2C 15 9628.5 72 y y Good Good core - fast Run#2C 16 9604.5 63 y y Broken Good core - fast Run#2C 17 9594.0 144 y y Broken Good core Run#2C 18 9561.0 72 n n Good Jamming Run#2C 19 9515.0 n n Broken Jamming Run#2C Tried again Run#2C Tried again Run#2C 09:30 Rigged down Co n f i d e n t i a l Kachemach-1 Run Time Core Depth (ft)Coring Time (s) Indication of break Pressure increase pushing core Core recovery, details Comments Run#2D 00:05 0.0 Surface calibration, GR, run in hole Run#2D 01:10 Correlation on depth to D&M Run#2D 01:25 20 9949.0 43 y y Missed Run#2D 01:29 21 9882.0 20 y n Rubble Run#2D 01:34 22 9975.0 201 y y Partial Run#2D 01:42 23 9725.5 189 y n Broken Run#2D 01:55 Correlation pass Run#2D 02:00 24 9561.0 149 y y Good 1 stall Run#2D 02:14 25 9449.5 99 y n Good Good core Run#2D 02:21 26 9373.0 107 y y Broken Good core, 1 stall Run#2D 02:28 27 9303.0 7 n n No core Wash out? Run#2D 02:32 Correlation pass Run#2D 02:40 28 9303.0 y n Good Repeat no-core, stuck 62 min Run#2D 03:50 29 9135.0 120 y n Good Good core Run#2D 03:55 30 9010.0 108 y y Partial Good core Run#2D 31 9003.0 144 y y Broken Good core Run#2D 32 8976.0 111 y y Rubble 3 stalls Run#2D 33 8946.9 153 y y Good Good core Run#2D 34 8920.0 117 y y Good Good core Run#2D 35 8791.0 108 y y Good Good core Run#2D 36 8753.0 108 y y Good Good core Run#2D 04:45 37 8713.5 109 y y Good Good core Run#2D 05:05 Close tool, begin pulling out Run#2D 06:55 Rigged down Co n f i d e n t i a l Kachemach-1 3. RSWC Description Run Run ·#2C SWC number 1 Depth (ftMD) 10095.9 Depth (ftTVD) Formation Shublik Lithology Dense Silty Claystone RSWC Size (mm) 20 x 37 RSWC Photo Description: Dense silty claystone; medium dark gray to gray, with brownish black to olive black secondary hues; hard; massive; non-shaly and non-sandy; many pyritized streaks, small nodular masses of pyrite microcrystals and at least one very long micro-thin pyrite line; many dusky gray to black micro-patches may be possible phosphates, but cannot be differentiated. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 2 Depth (ftMD) 10091 Depth (ftTVD) Formation Shublik Lithology Dense Silty Claystone RSWC Size (mm) (Large Fragment) 15 x 23 RSWC Photo Description: Dense silty claystone; medium light gray, with faint light brownish black and light olive gray secondary hues; hard; massive, mostly structureless, but note some very faint discernible laminations; common tiny pyritized patches. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 3 Depth (ftMD) 10086 Depth (ftTVD) Formation Shublik Lithology Dense Silty Claystone RSWC Size (mm) 21 x 45 RSWC Photo Description: Very dense silty claystone; medium dark gray to dark gray, with faint brownish black and olive black secondary hues; hard; massive, non-shaly; trace tiny patches of pyrite microcrystals. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 4 Depth (ftMD) 10077 Depth (ftTVD) Formation Shublik Lithology Dense Silty Claystone RSWC Size (mm) 23 x 40 RSWC Photo Description: Dense silty claystone; brownish black to grayish black with strong olive black secondary hues; moderately hard; massive, non-shaly; note prominent abundant fossil shell casts; originated from single shells of bivalves; nearly all shell casts have distinctive ridges; note that zones enclosed by the shell casts are darker (black, possibly phosphatic?) claystone, while the remaining rock outside the shells is siltier and grainier. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 5 Depth (ftMD) 10069 Depth (ftTVD) Formation Shublik Lithology Dense Silty Claystone RSWC Size (mm) 22 x 49 RSWC Photo Description: Dense silty claystone to dense clayey siltstone; medium dark gray to black with strong brownish black to olive black secondary hues; moderately hard; massive, non-shaly; note faint, but very abundant calcite micro-fracture fill; general appearance is of “wavy” calcite, produced in apparent zones where rock stress has created tiny (micro to crypto) zig-zag patterned fractures filled with incipient calcite; pyrite occurs as barely discernible (often long) micro-thin threads of micro-crystals or in non-differentiated form; some tiny patches display more than one stage of pyritization. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 6 Depth (ftMD) 10059 Depth (ftTVD) Formation Shublik Lithology Very Dense Clayey Siltstone RSWC Size (mm) 22 x 47 RSWC Photo Description: Very dense clayey siltstone; medium dark gray with olive gray secondary hues; hard; massive, non-shaly; same “ultrafine” characteristics of calcite and pyrite, including “wavy” calcite, as core cut at 10069’; note large very prominent “bulls-eye” like zone of roughly circular calcite-filled micro-fractures, that appear to be expanding away from a dark black spot (possibly a foram) at the center of the pattern. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 7 Depth (ftMD) 10047 Depth (ftTVD) Formation Sag River Lithology Very Dense Clayey Siltstone RSWC Size (mm) 23 x 43 RSWC Photo Description: Very dense clayey siltstone; dark gray to black with very strong olive black secondary hues; hard; massive; continued same “ultra-fine” calcite and pyrite fill characteristics as at 10069’ and 10059’; abundant “wisps” of “wavy” calcite and long barely discernible micro-lines of pyrite. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 8 Depth (ftMD) 9988.9 Depth (ftTVD) Formation J5 Lithology Very Dense Claystone RSWC Size (mm) Broken Core, (Large Fragment) 9 x 24 RSWC Photo Description: Very dense claystone; black; hard; massive; dense clayey texture; micro-calcite on some of the open faces of the rock fragments; in part has black micro-sucrosic limestone appearance. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 9 Depth (ftMD) 9985 Depth (ftTVD) Formation J5 Lithology Very Dense Slightly Silty Claystone RSWC Size (mm) 22 x 47 RSWC Photo Description: Very dense slightly silty claystone; dark gray to grayish black with strong olive black secondary hues; hard; massive, non-shaly; calcite is not easily discernible; note very fine delicate “fan-like” patches of micro-crypto pyrite. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 11 Depth (ftMD) 9936 Depth (ftTVD) Formation J5 Lithology Very Dense Slightly Silty Claystone RSWC Size (mm) 23 x 43 RSWC Photo Description: Very dense very slightly silty claystone; dark gray to grayish black with very strong brownish black to olive black secondary hues; hard; massive, non-shaly; note “ultra- fine” black glassy-looking streaks or lineations, of non-differentiated mineralogy, in widely spaced sub-parallel arrangement throughout the rock’s fabric. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 15 Depth (ftMD) 9628.4 Depth (ftTVD) Formation J5 Lithology Very Dense Clayey Siltstone RSWC Size (mm) 23 x 46 RSWC Photo Description: Very dense clayey siltstone; brownish gray with very strong medium dark gray to olive gay secondary hues; hard; massive, non-shaly; abundant micro-crypto-particles of calcite; note tiny (possibly phosphatic) black micro-nodules. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 16 Depth (ftMD) 9604.5 Depth (ftTVD) Formation J5 Lithology Very Dense Claystone RSWC Size (mm) (Very Large Fragment, 13 x 36) RSWC Photo Description: Very dense claystone; medium dark gray with very strong olive gray and faint brownish gray secondary hues; overall fairly homogeneous appearance; lacks singularly distinctive minerals or rock particles; hard; massive, non-shaly; dense clayey to very prominent micro-sucrosic texture. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 17 Depth (ftMD) 9594.1 Depth (ftTVD) Formation J5 Lithology Very Dense Clayey Siltstone RSWC Size (mm) (Very Large Fragment) 13 x 32 RSWC Photo Description: Very dense clayey siltstone; medium gray to dark gray with very strong brownish gray to olive gray secondary hues; hard; massive; dense clayey to micro-sucrosic texture; barely discernible micro metallic (pyrite?) and black non-metallic (possibly phosphatic?) particles. Co n f i d e n t i a l Kachemach-1 Run Run #2C SWC number 18 Depth (ftMD) 9561.1 Depth (ftTVD) Formation J5 Lithology Very Dense Slightly Clayey Siltstone RSWC Size (mm) Fragmented Core, Large Fragment: 13 x 8 RSWC Photo Description: Very dense clayey siltstone; medium gray to dark gray with very strong brownish gray to olive gray secondary hues; hard; massive; dense clayey to micro-sucrosic texture; spotty discernible micro metallic and black non-metallic non-differentiated particles; trace fraction silt particles are larger and close to very fine sandstone boundary. Co n f i d e n t i a l Kachemach-1 Run Run ·#2C SWC number 19 Depth (ftMD) 9515 Depth (ftTVD) Formation J5 Lithology Very Dense Slightly Clayey Siltstone RSWC Size (mm) 22 x 34 RSWC Photo Description: Very dense slightly clayey siltstone; medium gray to dark gray with very strong brownish gray to olive gray secondary hues; hard; massive, non-shaly; dense clayey to micro-sucrosic texture; abundant micro-crypto-particles of calcite; trace larger sized silt particles borderline to very fine sandstone; lacks singularly distinctive minerals, rock particles or fossil fragments. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 21 Depth (ftMD) 9882 Depth (ftTVD) Formation J5 Lithology Very Dense Claystone RSWC Size (mm) Largest chip from rubble: 5 x 20 RSWC Photo Description: Very dense claystone; medium dark gray to black, with strong olive black to brownish black and faint dusky brown to dusky yellowish brown secondary hues; hard; both massive and partially microlaminated; laminations are a roughly laminar pattern on the rock fabric but there is no apparent planar separation on the core fragments; dense clayey to smooth to slightly sucrosic texture; dull to very dense earthy luster. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 22 Depth (ftMD) 9775 Depth (ftTVD) Formation J5 Lithology Very Dense Silty Claystone RSWC Size (mm) Largest partial core fragment: 20 x 36 RSWC Photo Description: Very dense silty claystone; dark gray to black with strong brownish black to olive black secondary hues; moderately hard; massive, non-shaly; dense clayey to micro- sucrosic texture; lacks singularly distinctive minerals, rock particles or micro-structures. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 23 Depth (ftMD) 9725.5 Depth (ftTVD) Formation J5 Lithology Very Dense Silty Claystone RSWC Size (mm) Broken Core, Largest Fragment: 21 x 30 RSWC Photo Description: Very dense silty claystone; dark gray to grayish black to brownish black to olive black; hard; massive, non-shaly; dense clayey to microsucrosic texture; no singularly distincitive features. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 24 Depth (ftMD) 9561 Depth (ftTVD) Formation J5 Lithology Very Dense Siltstone RSWC Size (mm) 22 x 43 RSWC Photo Description: Very dense siltstone; medium gray to medium dark gray with strong olive gray secondary hues; hard; massive; structureless; silty to sucrosic to micro-grainy texture; note that silt particles are generally arenaceous and at the upper end of the silt range close to very fine lower sandstone boundary. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 25 Depth (ftMD) 9449.5 Depth (ftTVD) Formation J5 Lithology Very Dense Silty Claystone RSWC Size (mm) 23 x 49 RSWC Photo Description: Very dense silty claystone; medium light gray to medium dark gray with faint olive gray secondary hues; hard; massive, non-shaly; structureless; no discernible calcitie or pyrite; dense clayey to partially sucrosic texture; no singularly distinctive features. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 26 Depth (ftMD) 9373 Depth (ftTVD) Formation J5 Lithology Very Dense Claystone RSWC Size (mm) Broken Core, Joined Fragments: 22 x 41 RSWC Photo Description: Very dense claystone; medium light gray to medium dark gray with faint olive gray secondary hues; hard; massive, non-shaly; structureless; no discernible calcitie or pyrite; dense clayey to slightly silty to partially sucrosic texture; no singularly distinctive features. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 28 Depth (ftMD) 9303 Depth (ftTVD) Formation J5 Lithology Very Dense Claystone RSWC Size (mm) 22 x 48 RSWC Photo Description: Note 2 attempts to core this interal. First attempt was on an apparent fracture and failed immediately. Coring tool was spotted at same depth and a full recovery was achieved on the second attempt. Very dense claystone; medium dark gray to dark gray with faint olive gray secondary hues; hard; massive, non-shaly; structureless; non-sucrosic; no distinctive features. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 29 Depth (ftMD) 9135 Depth (ftTVD) Formation J5 Lithology Very Dense Claystone RSWC Size (mm) 22 x 46 RSWC Photo Description: Very dense claystone; medium gray to dark gray with faint olive gray secondary hues; hard; massive, non-shaly; structureless; dense clayey texture; no distinctive features; very homogeneous overall appearance. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 30 Depth (ftMD) 9010 Depth (ftTVD) Formation J5 Lithology Dense Claystone RSWC Size (mm) Partial Core, Largest Fragment: 23 x 27 RSWC Photo Description: Dense claystone; medium dark gray to dark gray with strong brownish black to olive black secondary hues; hard; massive, non-shaly; structureless; dense clayey texture; dense earthy luster; note one large and several small distinctive surface clusters of agglomerated pyrite micro-crystals; largest cluster was polished by bit coring action. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 31 Depth (ftMD) 9003 Depth (ftTVD) Formation J-5 Lithology Dense Limestone RSWC Size (mm) Broken Core, Largest Fragment: 22 x 18 RSWC Photo Description: Localized dense fractured limestone; brownish gray with strong grayish brown to dusky brown and faint very dusky red secondary hues; hard to apparently brittle and tough; prominent sucrosic to microsucrosic texture; very distinctive fractures with calcite fill; the fracturing is extensive, locally wide and vugular, and displays abundant calcite (and possibly other) crystals, including one large (5mm) crystal; dense slightly silty-clayey in part, and trace gradational to very limey silty claystone. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 32 Depth (ftMD) 8976 Depth (ftTVD) Formation J-5 Lithology Dense Claystone RSWC Size (mm) Rubble, Largest Fragment: 20 x 10 RSWC Photo Description: Dense claystone; black with moderate grayish black to brownish black to olive black secondary hues; tough and brittle to hard; massive; structureless; non-shaly, non- silty; no singularly distinctive features; very homogeneous overall appearance. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 33 Depth (ftMD) 8946.9 Depth (ftTVD) Formation J-5 Lithology Dense Glauconitic Limestone RSWC Size (mm) 22 x 45 RSWC Photos Description: Dense glauconitic limestone; dark greenish gray to greenish black with faint olive gray to medium gray to medium dark gray secondary hues; hard; massive, non-shaly; distinctive sucrosic to microsucrosic texture; abundant glauconite grains; abundant tiny white rounded masses of micro-crypto calcite; trace very silty limestone grading to very calcareous glauconitic siltstone; marginally abundant tiny pinpoint spots of dull yellow sample fluorescence. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 34 Depth (ftMD) 8920 Depth (ftTVD) Formation Miluveach Lithology Very Dense Clayey Siltstone RSWC Size (mm) 23 x 46 RSWC Photo Description: Very dense clayey siltstone; medium dark gray to dark gray with very faint brownish gray secondary hue; hard; massive; non-shaly; structureless; no singularly distinctive features. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 35 Depth (ftMD) 8791 Depth (ftTVD) Formation Miluveach Lithology Very Dense Claystone RSWC Size (mm) 22 x 46 RSWC Photo Description: Very dense claystone; though individual grains not easily distinguished, this rock has a distinctive microsucrosic texture with many tiny reflection points, and might also be typed as a very clayey, muddy limestone; complex colors; brownish gray to brownish black to olive gray to olive black with strong medium dark gray to dark gray secondary hues; hard; massive; structureless; has tiny patches of disseminated micro-pyrite. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 36 Depth (ftMD) 8753 Depth (ftTVD) Formation Miluveach Lithology Very Dense Claystone RSWC Size (mm) 23 x 48 RSWC Photo Description: Very dense claystone; slightly denser texture than at 8791; complex colors; medium dark gray to dark gray to brownish gray to brownish black to olive gray to olive black; hard; massive; structureless; individual grain boundaries not easily distinguished; distinctive microsucrosic texture with many tiny reflection points; has tiny rounded (fine sand sized) spots of disseminated pyrite micro-crystals and disseminated micro- (crypto)crystalline calcite; traces of other undifferentiated minerals and rare glauconite grains. Co n f i d e n t i a l Kachemach-1 Run Run ·#2D SWC number 37 Depth (ftMD) 8713.5 Depth (ftTVD) Formation Miluveach Lithology Very Dense Claystone RSWC Size (mm) 23 x 48 RSWC Photo Description: Very dense claystone; appears very homogenous overall; minor part appears gradational to a very “muddy” limestone; medium dark gray to dark gray with strong brownish black to olive black secondary hues; hard; massive; structureless; displays abundant pinpoint spots of disseminated pyrite, and spotty tiny micro-thin lineations of pyrite microcrystals. Co n f i d e n t i a l Kachemach-1 4. rSWC Operation Comments (SLB) Co n f i d e n t i a l Kachemach-1 MSCT toolstring diagram and its specifications. Co n f i d e n t i a l Kachemach-1 5. rSWC Handling and Preservation Comments (Corelab) Schlumberger Wireline Services engineers performed the handling and preservation of all SWC samples at the wellsite and arranged for shipment to Corelab. 6. Other Comments Data Evaluation Report Innovations in Formation Testing PD Plot 7 Ver 7.1.64 Run 1 - 12-1/4" Bit Size Hole Company Repsol USA Well Name Kachemach-1 Field Name North Slope State ALASKA API No. 50-103-20646-00-00 Engineer's Name Hinchey/Paris Date 27-MAR-2012 Report Date 4/5/2012 Report By R.Heath DISCLAIMER THE USE OF AND RELIANCE UPON THIS RECORDED-DATA BY THE HEREIN NAMED COMPANY (AND ANY OF ITS AFFILIATES, PARTNERS, REPRESENTATIVES, AGENTS, CONSULTANTS AND EMPLOYEES) IS SUBJECT TO THE TERMS AND CONDITIONS AGREED UPON BETWEEN SCHLUMBERGER AND THE COMPANY, INCLUDING: (A) RESTRICTIONS ON USE OF THE RECORDED-DATA; (B) DISCLAIMERS AND WAIVERS OF WARRANTIES AND REPRESENTATIONS REGARDING COMPANY'S USE OF AND RELIANCE UPON THE RECORDED-DATA; AND (C) CUSTOMER'S FULL AND SOLE RESPONSIBILITY FOR ANY INFERENCE DRAWN OR DECISION MADE IN CONNECTION WITH THE USE OF THIS RECORDED-DATA. Section 1 Written Comments 1 Repsol USA Log Date: 27-Mar-2012 North Slope, Alaska Kachemach-1 Express Pressure Tool – XPT – Run-1E Objectives: · To obtain pressure measurements at various points throughout the 12-1/4” hole in order to assess permeability and (if decided on) to aid in design of the MDT sampling run. · To compile an XPT final evaluation report that includes plots of formation pressures versus depth, a table of test point data, and individual plots of each test draw- down/build-up sequence. Comments: XPT Run 1E was conducted on 27-Mar-2012 in the 12-1/4” hole from roughly 2,656’ to 6,601’ (MD). No tool problems were encountered. The test results are summarized in the tables on the following pages. A total of 42 tests were attempted. Overall, 10 valid tests provided good measurements of formation pressures (two at essentially the same depth – 9 unique). 29 tests were judged to be “Tight” or “Dry” and three were classified as “Lost Seal”. Individual test quality is graded by color, with Green signifying “Good” (see the table below for grading explanation). The data used to generate this report was from the field recorded DLIS data, and processed using Schlumberger PD-Plot software (Version 7.1.56). Only the valid tests were included in the field DLIS provided. TVD depths shown are computed from survey data obtained from the MWD tools currently being run. The GR, Resistivity and Neutron/Density curves shown for correlation were obtained on other runs in the hole. Formation Pressure Quality Grading Description Color Quality# Description Examples None 0 through 3 No Formation Pressure No Seal, Lost Seal, Tight Test Yellow 3 through 7 Questionable/Fair Formation Pressure Building -- Not Close To Being Stabilized Green 8 through 10 Good Formation Pressure Build Up Stabilized 2 Section 2 Pressure Results Summary and Test Point Table 3 File No. Test No. Test TVD Test MD Test Subsea Formation Pressure Last-Read Buildup Mud Before Mud After Drawdown Mobility ft ft ft psia psia psia psia md/cp 240 67 2656.26 2656.46 -2656.26 1012.99 1012.99 1415.76 1414.88 310.02 241 68 2673.26 2673.46 -2673.26 1020.34 1020.34 1424.68 1424.76 268.31 252 8 2686.25 2686.45 -2686.25 1021.86 1021.86 1425.69 1427.18 473.26 234 65 2686.34 2686.54 -2686.34 1024.41 1024.41 1430.13 1430.05 1391.14 233 61 2794.69 2794.90 -2794.69 1074.07 1074.07 1487.45 1487.68 25.25 232 59 2853.3 2853.52 -2853.3 1099.84 1099.84 1518.64 1518.58 41.27 231 57 2874.73 2874.95 -2874.73 1109.18 1109.18 1530.03 1529.79 17.36 230 55 2910.78 2911.00 -2910.78 1126.2 1126.2 1548.86 1548.9 34.14 229 53 2937.67 2937.90 -2937.67 1137.38 1137.38 1559.97 1562.58 0.39 228 51 6601.17 6601.85 -6601.17 3330.36 3330.36 3481.6 3482.84 0.01 Test Point Table Kachemach-1 4 Test Type Remarks Time & Date Temp. Pretest Volume Pretest Time DEGF cc s Normal Pretest Valid test 27-Mar-2012 14:16:00 66.93 9.47 6 Normal Pretest Valid test 27-Mar-2012 14:27:00 66.54 18.76 10.5 Volumetric Pretest Valid test 27-Mar-2012 18:03:00 84.45 18.86 10.5 Normal Pretest Valid test 27-Mar-2012 13:50:00 69.25 4.2 3.3 Volumetric Limited draw-down Valid test 27-Mar-2012 13:40:00 71.4 4.8 10.2 Normal Pretest Valid test 27-Mar-2012 13:31:00 73.1 4.89 10.5 Normal Pretest Valid Test 27-Mar-2012 13:22:00 74.84 4.79 10.2 Normal Pretest Valid Test 27-Mar-2012 13:12:00 76.92 4.79 10.2 Normal Pretest Valid Test 27-Mar-2012 12:51:00 82.11 0.43 1.5 Normal Pretest Valid test 27-Mar-2012 11:05:00 146.05 0.1 1.2 Test Point Table Kachemach-1 5 Test Types Quantity Normal Pretest 8 Volumetric Pretest 1 Volumetric Limited draw-down 1 TOTAL 10 Gauges CP_SAP 10 Runs Color R1B 10 Formation Pressure Quality: 0 (no pressure) - 10 (best) Color 10 10 Drawdown Mobility Quality: 0 (no pressure) - 10 (best) Color 10 7 7 3 Test Point Summary Table Kachemach-1 6 Section 3 Well / Job Data 7 Header_Revised Kachemach-1 8 Field_Remarks_Revised Kachemach-1 9 Tool_String Kachemach-1 10 FORMATION (CP_SAP psia) FORMATION (CP_SAP psia) MUD AFTER (CP_SAP psia) MUD AFTER (CP_SAP psia) 1:557 ft 1:557 ft AT20 (ohmm) AT20 (ohmm) NPHI (v/v) NPHI (v/v) 0 2000 0 5000 TVD (MD) 0.1 1000 0.6 0 MUD BEFORE (CP_SAP psia) MUD BEFORE (CP_SAP psia) AT90 (ohmm) AT90 (ohmm) DPHI (v/v) DPHI (v/v) 0 5000 0.1 1000 0.6 0 Temperature (CP_SAP degf) Temperature (CP_SAP degf) DRAWDOWN MOBILITY (CP_SAP md/cp) DRAWDOWN MOBILITY (CP_SAP md/cp) 50 100 GR (gapi) GR (gapi) 0.1 1000 0 150 2700 (2700.2) 2800 (2800.2) 2900 (2900.2) 67 68 865 61 59 57 55 53 67 68 865 61 59 57 55 53 67 68 865 61 59 57 55 53 67 68 865 61 59 57 55 53 67 68 8 61 59 57 55 53 0.449 psi/ft Press_vs_Depth_View1 Kachemach-1 11 FORMATION (CP_SAP psia) FORMATION (CP_SAP psia) MUD AFTER (CP_SAP psia) MUD AFTER (CP_SAP psia) 1:279 ft 1:279 ft AT20 (ohmm) AT20 (ohmm) NPHI (v/v) NPHI (v/v) 2000 4000 2500 7500 TVD (MD) 0.1 1000 0.6 0 MUD BEFORE (CP_SAP psia) MUD BEFORE (CP_SAP psia) AT90 (ohmm) AT90 (ohmm) DPHI (v/v) DPHI (v/v) 2500 7500 0.1 1000 0.6 0 Temperature (CP_SAP degf) Temperature (CP_SAP degf) DRAWDOWN MOBILITY (CP_SAP md/cp) DRAWDOWN MOBILITY (CP_SAP md/cp) 100 150 GR (gapi) GR (gapi) 0.1 1000 0 150 6600 (6600.7) 51 51 51 51 Press_vs_Depth_View2 Kachemach-1 12 Mud Pressure After (psia) Mud Pressure Before (psia) 3490.00 1400.00 1400.00 3490.00 67 68 865 61 59 57 55 53 51 XY MUD Before vs MUD After Kachemach-1 13 Kachemach-1 Source :Supplied Survey table MD TVD Devi Azimuth North East Departur e Departur e Azimuth Dogleg Severity ft ft Deg Deg ft ft ft Deg Deg/100f 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 122.00 122.00 0.17 253.78 -0.05 -0.17 0.18 253.61 233.55 233.55 0.03 278.35 -0.09 -0.36 0.37 255.96 303.56 303.56 0.04 82.42 -0.09 -0.36 0.37 255.96 0.01 392.00 392.00 0.04 72.20 -0.07 -0.30 0.31 256.87 0.00 489.93 489.93 0.03 246.79 -0.07 -0.29 0.30 256.43 0.01 579.80 579.80 0.08 224.38 -0.13 -0.35 0.37 249.62 0.06 670.24 670.24 0.19 173.59 -0.32 -0.38 0.50 229.90 0.12 763.67 763.67 0.43 170.99 -0.82 -0.31 0.88 200.71 0.26 855.00 854.99 0.57 168.97 -1.61 -0.17 1.62 186.03 0.15 950.79 950.78 0.71 178.25 -2.67 -0.06 2.67 181.29 0.15 1043.91 1043.89 0.84 189.43 -3.92 -0.15 3.92 182.19 0.14 1139.32 1139.29 0.77 190.39 -5.24 -0.38 5.25 184.15 0.07 1235.82 1235.78 0.82 182.31 -6.56 -0.53 6.58 184.62 0.05 1332.34 1332.29 0.84 177.17 -7.96 -0.52 7.98 183.74 0.02 1429.92 1429.86 0.85 182.51 -9.40 -0.52 9.41 183.17 0.01 1525.10 1525.03 0.95 179.93 -10.89 -0.55 10.90 182.89 0.11 1621.93 1621.85 0.95 182.23 -12.50 -0.58 12.51 182.66 0.00 1715.18 1715.08 0.85 185.81 -13.96 -0.68 13.98 182.79 0.11 1813.29 1813.18 0.82 188.55 -15.38 -0.85 15.40 183.16 0.03 1908.84 1908.72 0.87 190.36 -16.77 -1.09 16.81 183.72 0.05 2002.66 2002.53 0.91 184.14 -18.21 -1.27 18.25 183.99 0.04 2098.27 2098.13 0.89 184.32 -19.71 -1.38 19.76 184.01 0.02 2194.14 2193.99 0.84 184.19 -21.15 -1.49 21.20 184.03 0.05 2289.80 2289.64 0.96 185.41 -22.65 -1.61 22.71 184.07 0.13 2334.57 2334.40 0.89 183.19 -23.37 -1.67 23.43 184.09 0.16 2576.98 2576.79 0.75 204.41 -26.69 -2.43 26.80 185.20 0.06 2673.23 2673.03 0.72 201.64 -27.83 -2.91 27.98 185.97 0.03 2768.98 2768.77 0.76 200.65 -28.98 -3.36 29.17 186.61 0.04 2864.73 2864.51 0.77 198.70 -30.19 -3.79 30.43 187.16 0.01 2959.77 2959.54 0.79 196.21 -31.42 -4.18 31.70 187.58 0.02 3055.68 3055.44 0.82 193.94 -32.72 -4.53 33.03 187.88 0.03 3151.56 3151.31 0.91 194.84 -34.12 -4.89 34.47 188.16 0.09 3247.64 3247.38 0.93 196.15 -35.61 -5.30 36.00 188.47 0.02 3344.20 3343.93 0.87 184.33 -37.09 -5.57 37.51 188.54 0.06 3439.03 3438.75 0.84 183.62 -38.50 -5.67 38.92 188.38 0.03 3535.28 3534.99 0.86 191.64 -39.92 -5.86 40.35 188.35 0.02 3630.33 3630.03 0.79 187.32 -41.27 -6.09 41.72 188.39 0.07 3726.49 3726.18 0.71 186.10 -42.52 -6.23 42.97 188.34 0.08 3821.59 3821.27 0.74 190.99 -43.70 -6.41 44.17 188.34 0.03 3918.01 3917.68 0.70 193.67 -44.89 -6.67 45.38 188.45 0.04 4012.94 4012.61 0.75 193.65 -46.05 -6.96 46.57 188.59 0.05 4108.46 4108.12 0.75 197.59 -47.26 -7.29 47.82 188.77 0.00 4204.93 4204.58 0.77 195.58 -48.48 -7.66 49.08 188.98 0.02 4300.68 4300.32 0.74 196.06 -49.70 -8.00 50.34 189.14 0.03 4396.49 4396.12 0.77 197.46 -50.91 -8.37 51.59 189.34 0.03 4492.86 4492.49 0.77 203.78 -52.12 -8.82 52.86 189.60 0.00 4586.76 4586.38 0.74 205.79 -53.24 -9.34 54.05 189.95 0.03 4684.16 4683.77 0.78 206.45 -54.40 -9.91 55.30 190.32 0.04 4780.08 4779.68 0.86 212.77 -55.59 -10.59 56.59 190.79 0.08 4875.11 4874.70 0.89 212.50 -56.81 -11.37 57.94 191.32 0.03 4969.93 4969.51 0.93 217.42 -58.04 -12.23 59.31 191.90 0.04 5066.56 5066.12 1.09 220.54 -59.37 -13.31 60.84 192.64 0.17 5162.44 5161.98 1.12 219.10 -60.79 -14.49 62.49 193.41 0.03 5258.86 5258.38 1.18 225.87 -62.21 -15.80 64.19 194.25 0.06 Inclinometry Tables Kachemach-1 14 5355.11 5354.61 1.16 228.47 -63.54 -17.24 65.84 195.18 0.02 5449.07 5448.55 1.12 231.23 -64.75 -18.67 67.39 196.08 0.04 5545.58 5545.05 1.08 232.22 -65.90 -20.12 68.90 196.98 0.04 5641.67 5641.12 1.05 237.98 -66.92 -21.58 70.31 197.87 0.03 5737.62 5737.05 1.03 238.32 -67.84 -23.06 71.65 198.77 0.02 5833.48 5832.90 0.98 238.40 -68.72 -24.49 72.95 199.61 0.05 5928.96 5928.37 0.95 240.44 -69.54 -25.88 74.20 200.41 0.03 6025.81 6025.20 0.91 241.30 -70.30 -27.25 75.40 201.19 0.04 6120.75 6120.13 1.00 243.77 -71.03 -28.66 76.59 201.97 0.09 6216.87 6216.24 0.97 246.11 -71.73 -30.15 77.81 202.80 0.03 6312.54 6311.89 0.91 245.83 -72.37 -31.59 78.96 203.58 0.06 6408.37 6407.71 0.88 250.69 -72.93 -32.97 80.04 204.33 0.03 6503.21 6502.54 0.81 257.08 -73.32 -34.32 80.95 205.08 0.07 6599.37 6598.69 0.69 254.09 -73.63 -35.53 81.75 205.76 0.12 6697.44 6696.76 0.65 254.99 -73.93 -36.64 82.51 206.36 0.04 6791.35 6790.66 0.61 264.45 -74.12 -37.65 83.13 206.93 0.04 6887.38 6886.68 0.73 271.97 -74.15 -38.77 83.67 207.60 0.12 6980.62 6979.92 0.66 277.77 -74.06 -39.90 84.12 208.31 0.08 7094.28 7093.57 0.69 273.96 -73.92 -41.23 84.64 209.15 0.03 7189.19 7188.47 0.77 275.30 -73.82 -42.43 85.15 209.89 0.08 7287.69 7286.96 0.82 273.68 -73.72 -43.80 85.75 210.72 0.05 7381.10 7380.36 0.90 276.97 -73.58 -45.19 86.35 211.56 0.09 7476.50 7475.75 0.94 278.05 -73.38 -46.71 86.99 212.48 0.04 7572.02 7571.26 0.97 278.82 -73.15 -48.29 87.65 213.43 0.03 7668.24 7667.47 0.75 281.75 -72.90 -49.71 88.24 214.29 0.23 7766.25 7765.47 0.81 280.04 -72.64 -51.02 88.77 215.08 0.06 7861.94 7861.15 0.83 278.48 -72.42 -52.37 89.37 215.87 0.02 7955.52 7954.72 0.79 292.36 -72.08 -53.64 89.85 216.66 0.04 8052.17 8051.36 0.84 295.51 -71.52 -54.89 90.16 217.51 0.05 8148.79 8147.97 0.72 307.84 -70.84 -56.01 90.31 218.33 0.12 8242.69 8241.86 0.77 319.87 -70.00 -56.88 90.20 219.10 0.05 8338.23 8337.39 0.86 327.28 -68.90 -57.68 89.86 219.93 0.09 8434.73 8433.88 0.89 333.32 -67.63 -58.41 89.36 220.82 0.03 8529.95 8529.09 0.94 334.23 -66.26 -59.08 88.77 221.72 0.05 8570.81 8569.94 0.87 332.44 -65.68 -59.37 88.54 222.11 0.17 Inclinometry Tables Kachemach-1 15 Section 4 Pretest Interpretation 16 17 Pressure Vs Time Plots Test #51 6601.17 ft (TVD) - 6601.85 ft (MD) Valid Test 18 P r e s s u r e V s T i m e P l o t : F i l e 2 2 8 T e s t 5 1 6 6 0 1 . 8 5 ft ( M D ) 6 6 0 1 . 1 7 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 4 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 1 1 0 2 0 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 2 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 . 5 10 0 0 20 0 0 3000 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 4 9 Te s t 5 0 Test 51 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 3 3 3 0 . 3 6 p s i a La s t R e a d 3 3 3 0 . 3 6 p s i a Dr a w d o w n M o b i l i t y 0 . 0 1 1 m d / c p ( 0 . 1 o f 0 . 1 c c ) Mu d P r e s s u r e B e f o r e 3 4 8 1 . 6 p s i a Mu d P r e s s u r e A f t e r 3 4 8 2 . 8 4 p s i a Te m p e r a t u r e B e f o r e / A f t e r 1 4 6 . 0 5 D E G F / 1 4 6 . 0 1 D E G F Pr e t e s t R a t e / V o l u m e 0 . 0 8 c 3 / s / 0 . 1 c c Va l i d t e s t 30 2 4 30 9 7 . 6 31 7 1 . 2 32 4 4 . 8 33 1 8 . 4 33 9 2 P r e s s u r e ( p s i a ) 22 2 5 25 0 5 27 8 5 30 6 5 33 4 5 36 2 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 19 1e + 0 0 1e + 0 1 1e + 0 2 1e + 0 3 1e + 0 2 1e + 0 3 1e + 0 4 1e + 0 5 1e + 0 1 1e + 0 6 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 2 8 T e s t 5 1 6 6 0 1 . 8 5 f t ( M D ) 6 6 0 1 . 1 7 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 20 P r e s s u r e V s T i m e P l o t : F i l e 2 2 8 T e s t 5 1 6 6 0 1 . 8 5 ft ( M D ) 6 6 0 1 . 1 7 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 2 9 2 1 . 2 3 6 8 4 . 9 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 1 1 0 2 0 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 2 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 . 5 21 0 0 22 0 0 23 0 0 24 0 0 25 0 0 26 0 0 27 0 0 28 0 0 29 0 0 3000 3100 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r 49 Te s t 5 0 Te s t 5 1 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 3 3 3 0 . 3 6 p s i a La s t R e a d 3 3 3 0 . 3 6 p s i a Dr a w d o w n M o b i l i t y 0 . 0 1 1 m d / c p ( 0 . 1 o f 0 . 1 c c ) Mu d P r e s s u r e B e f o r e 3 4 8 1 . 6 p s i a Mu d P r e s s u r e A f t e r 3 4 8 2 . 8 4 p s i a Te m p e r a t u r e B e f o r e / A f t e r 1 4 6 . 0 5 D E G F / 1 4 6 . 0 1 D E G F Pr e t e s t R a t e / V o l u m e 0 . 0 8 c 3 / s / 0 . 1 c c Va l i d t e s t 30 2 4 30 9 7 . 6 31 7 1 . 2 32 4 4 . 8 33 1 8 . 4 33 9 2 P r e s s u r e ( p s i a ) 22 2 5 25 0 5 27 8 5 30 6 5 33 4 5 36 2 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 21 Pressure Vs Time Plots Test #53 2937.67 ft (TVD) - 2937.90 ft (MD) Valid Test 22 P r e s s u r e V s T i m e P l o t : F i l e 2 2 9 T e s t 5 3 2 9 3 7 . 9 0 ft ( M D ) 2 9 3 7 . 6 7 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 10 0 20 0 30 0 40 0 50 0 60 0 700 800 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 2 Te s t 5 3 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 1 3 7 . 3 8 p s i a La s t R e a d 1 1 3 7 . 3 8 p s i a Dr a w d o w n M o b i l i t y 0 . 3 9 4 m d / c p ( 0 . 4 3 c c ) Mu d P r e s s u r e B e f o r e 1 5 5 9 . 9 7 p s i a Mu d P r e s s u r e A f t e r 1 5 6 2 . 5 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 8 2 . 1 1 D E G F / 8 0 . 4 2 D E G F Pr e t e s t R a t e / V o l u m e 0 . 2 9 c 3 / s / 0 . 4 3 c c Va l i d T e s t 0 27 2 . 4 54 4 . 8 81 7 . 2 10 8 9 . 6 13 6 2 P r e s s u r e ( p s i a ) 50 0 56 0 62 0 68 0 74 0 80 0 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 23 1e + 0 0 1e + 0 1 1e + 0 2 1e + 0 2 1e + 0 3 1e + 0 1 1e + 0 4 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 2 9 T e s t 5 3 2 9 3 7 . 9 0 f t ( M D ) 2 9 3 7 . 6 7 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 24 P r e s s u r e V s T i m e P l o t : F i l e 2 2 9 T e s t 5 3 2 9 3 7 . 9 0 ft ( M D ) 2 9 3 7 . 6 7 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 1 7 3 . 6 1 2 3 3 . 6 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 50 0 60 0 700 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 2 Te s t 5 3 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 1 3 7 . 3 8 p s i a La s t R e a d 1 1 3 7 . 3 8 p s i a Dr a w d o w n M o b i l i t y 0 . 3 9 4 m d / c p ( 0 . 4 3 c c ) Mu d P r e s s u r e B e f o r e 1 5 5 9 . 9 7 p s i a Mu d P r e s s u r e A f t e r 1 5 6 2 . 5 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 8 2 . 1 1 D E G F / 8 0 . 4 2 D E G F Pr e t e s t R a t e / V o l u m e 0 . 2 9 c 3 / s / 0 . 4 3 c c Va l i d T e s t 0 27 2 . 4 54 4 . 8 81 7 . 2 10 8 9 . 6 13 6 2 P r e s s u r e ( p s i a ) 50 0 56 0 62 0 68 0 74 0 80 0 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 25 Pressure Vs Time Plots Test #55 2910.78 ft (TVD) - 2911.00 ft (MD) Valid Test 26 P r e s s u r e V s T i m e P l o t : F i l e 2 3 0 T e s t 5 5 2 9 1 1 . 0 0 ft ( M D ) 2 9 1 0 . 7 8 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 10 0 20 0 30 0 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 4 Te s t 5 5 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 1 2 6 . 2 p s i a La s t R e a d 1 1 2 6 . 2 p s i a Dr a w d o w n M o b i l i t y 3 4 . 1 4 4 m d / c p ( 4 . 7 9 c c ) Mu d P r e s s u r e B e f o r e 1 5 4 8 . 8 6 p s i a Mu d P r e s s u r e A f t e r 1 5 4 8 . 9 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 6 . 9 2 D E G F / 7 6 . 5 9 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 7 9 c c Va l i d T e s t 10 4 0 10 5 9 . 8 10 7 9 . 6 10 9 9 . 4 11 1 9 . 2 11 3 9 P r e s s u r e ( p s i a ) 17 5 20 5 23 5 26 5 29 5 32 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 27 1e + 0 0 1e + 0 1 1e + 0 2 1e - 0 2 1e - 0 1 1e + 0 0 1e + 0 1 1e + 0 2 1e - 0 3 1e + 0 3 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 3 0 T e s t 5 5 2 9 1 1 . 0 0 f t ( M D ) 2 9 1 0 . 7 8 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 28 P r e s s u r e V s T i m e P l o t : F i l e 2 3 0 T e s t 5 5 2 9 1 1 . 0 0 ft ( M D ) 2 9 1 0 . 7 8 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 9 9 0 . 7 1 1 6 6 . 9 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 19 0 20 0 21 0 22 0 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 4 Te s t 5 5 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 1 2 6 . 2 p s i a La s t R e a d 1 1 2 6 . 2 p s i a Dr a w d o w n M o b i l i t y 3 4 . 1 4 4 m d / c p ( 4 . 7 9 c c ) Mu d P r e s s u r e B e f o r e 1 5 4 8 . 8 6 p s i a Mu d P r e s s u r e A f t e r 1 5 4 8 . 9 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 6 . 9 2 D E G F / 7 6 . 5 9 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 7 9 c c Va l i d T e s t 10 4 0 10 5 9 . 8 10 7 9 . 6 10 9 9 . 4 11 1 9 . 2 11 3 9 P r e s s u r e ( p s i a ) 17 5 20 5 23 5 26 5 29 5 32 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 29 Pressure Vs Time Plots Test #57 2874.73 ft (TVD) - 2874.95 ft (MD) Valid Test 30 P r e s s u r e V s T i m e P l o t : F i l e 2 3 1 T e s t 5 7 2 8 7 4 . 9 5 ft ( M D ) 2 8 7 4 . 7 3 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 7 0 1 2 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 10 0 20 0 300 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 6 Te s t 5 7 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 1 0 9 . 1 8 p s i a La s t R e a d 1 1 0 9 . 1 8 p s i a Dr a w d o w n M o b i l i t y 1 7 . 3 6 4 m d / c p ( 4 . 7 9 c c ) Mu d P r e s s u r e B e f o r e 1 5 3 0 . 0 3 p s i a Mu d P r e s s u r e A f t e r 1 5 2 9 . 7 9 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 4 . 8 4 D E G F / 7 4 . 5 8 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 7 9 c c Va l i d T e s t 93 0 97 4 . 4 10 1 8 . 8 10 6 3 . 2 11 0 7 . 6 P r e s s u r e ( p s i a ) 17 5 20 5 23 5 26 5 29 5 32 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 31 1e + 0 0 1e + 0 1 1e + 0 0 1e + 0 1 1e + 0 2 1e - 0 1 1e + 0 3 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 3 1 T e s t 5 7 2 8 7 4 . 9 5 f t ( M D ) 2 8 7 4 . 7 3 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 32 P r e s s u r e V s T i m e P l o t : F i l e 2 3 1 T e s t 5 7 2 8 7 4 . 9 5 ft ( M D ) 2 8 7 4 . 7 3 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 8 9 9 . 9 1 1 7 4 . 9 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 7 0 1 2 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 19 0 20 0 21 0 22 0 230 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 6 Te s t 5 7 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 1 0 9 . 1 8 p s i a La s t R e a d 1 1 0 9 . 1 8 p s i a Dr a w d o w n M o b i l i t y 1 7 . 3 6 4 m d / c p ( 4 . 7 9 c c ) Mu d P r e s s u r e B e f o r e 1 5 3 0 . 0 3 p s i a Mu d P r e s s u r e A f t e r 1 5 2 9 . 7 9 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 4 . 8 4 D E G F / 7 4 . 5 8 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 7 9 c c Va l i d T e s t 93 0 97 4 . 4 10 1 8 . 8 10 6 3 . 2 11 0 7 . 6 P r e s s u r e ( p s i a ) 17 5 20 5 23 5 26 5 29 5 32 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 33 Pressure Vs Time Plots Test #59 2853.30 ft (TVD) - 2853.52 ft (MD) Valid Test 34 P r e s s u r e V s T i m e P l o t : F i l e 2 3 2 T e s t 5 9 2 8 5 3 . 5 2 ft ( M D ) 2 8 5 3 . 3 0 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 10 0 20 0 30 0 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 8 Te s t 5 9 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 9 9 . 8 4 p s i a La s t R e a d 1 0 9 9 . 8 4 p s i a Dr a w d o w n M o b i l i t y 4 1 . 2 7 5 m d / c p ( 4 . 8 9 c c ) Mu d P r e s s u r e B e f o r e 1 5 1 8 . 6 4 p s i a Mu d P r e s s u r e A f t e r 1 5 1 8 . 5 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 3 . 1 D E G F / 7 2 . 8 9 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 8 9 c c Va l i d t e s t 10 0 0 10 3 0 10 6 0 10 9 0 11 2 0 11 5 0 P r e s s u r e ( p s i a ) 20 0 21 0 22 0 23 0 24 0 25 0 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 35 1e + 0 0 1e + 0 1 1e - 0 1 1e + 0 0 1e + 0 1 1e + 0 2 1e - 0 2 1e + 0 3 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 3 2 T e s t 5 9 2 8 5 3 . 5 2 f t ( M D ) 2 8 5 3 . 3 0 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 36 P r e s s u r e V s T i m e P l o t : F i l e 2 3 2 T e s t 5 9 2 8 5 3 . 5 2 ft ( M D ) 2 8 5 3 . 3 0 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 9 9 6 . 0 1 1 3 4 . 8 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 2 22 0 23 0 24 0 25 0 260 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 5 8 Te s t 5 9 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 9 9 . 8 4 p s i a La s t R e a d 1 0 9 9 . 8 4 p s i a Dr a w d o w n M o b i l i t y 4 1 . 2 7 5 m d / c p ( 4 . 8 9 c c ) Mu d P r e s s u r e B e f o r e 1 5 1 8 . 6 4 p s i a Mu d P r e s s u r e A f t e r 1 5 1 8 . 5 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 3 . 1 D E G F / 7 2 . 8 9 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 8 9 c c Va l i d t e s t 10 1 0 10 3 0 10 5 0 10 7 0 10 9 0 11 1 0 P r e s s u r e ( p s i a ) 20 0 21 5 23 0 24 5 26 0 27 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 37 Pressure Vs Time Plots Test #61 2794.69 ft (TVD) - 2794.90 ft (MD) Valid Test 38 P r e s s u r e V s T i m e P l o t : F i l e 2 3 3 T e s t 6 1 2 7 9 4 . 9 0 ft ( M D ) 2 7 9 4 . 6 9 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 5 10 0 20 0 30 0 400 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 6 0 Te s t 6 1 To o l T y p e X P T Te s t T y p e V o l u m e t r i c L i m i t e d d r a w - d o w n Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 7 4 . 0 7 p s i a La s t R e a d 1 0 7 4 . 0 7 p s i a Dr a w d o w n M o b i l i t y 2 5 . 2 4 5 m d / c p ( 4 . 8 c c ) Mu d P r e s s u r e B e f o r e 1 4 8 7 . 4 5 p s i a Mu d P r e s s u r e A f t e r 1 4 8 7 . 6 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 1 . 4 D E G F / 7 1 . 2 3 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 8 c c Va l i d t e s t 94 5 97 4 . 4 10 0 3 . 8 10 3 3 . 2 10 6 2 . 6 P r e s s u r e ( p s i a ) 22 5 25 5 28 5 31 5 34 5 37 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 39 1e + 0 0 1e + 0 1 1e + 0 0 1e + 0 1 1e + 0 2 1e - 0 1 1e + 0 3 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 3 3 T e s t 6 1 2 7 9 4 . 9 0 f t ( M D ) 2 7 9 4 . 6 9 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 40 P r e s s u r e V s T i m e P l o t : F i l e 2 3 3 T e s t 6 1 2 7 9 4 . 9 0 ft ( M D ) 2 7 9 4 . 6 9 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 9 1 3 . 2 1 1 1 3 . 5 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 5 25 0 26 0 27 0 28 0 29 0 30 0 310 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 6 0 Te s t 6 1 To o l T y p e X P T Te s t T y p e V o l u m e t r i c L i m i t e d d r a w - d o w n Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 7 4 . 0 7 p s i a La s t R e a d 1 0 7 4 . 0 7 p s i a Dr a w d o w n M o b i l i t y 2 5 . 2 4 5 m d / c p ( 4 . 8 c c ) Mu d P r e s s u r e B e f o r e 1 4 8 7 . 4 5 p s i a Mu d P r e s s u r e A f t e r 1 4 8 7 . 6 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 7 1 . 4 D E G F / 7 1 . 2 3 D E G F Pr e t e s t R a t e / V o l u m e 0 . 4 7 c 3 / s / 4 . 8 c c Va l i d t e s t 94 5 97 4 . 4 10 0 3 . 8 10 3 3 . 2 10 6 2 . 6 P r e s s u r e ( p s i a ) 22 5 25 5 28 5 31 5 34 5 37 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 41 Pressure Vs Time Plots Test #65 2686.34 ft (TVD) - 2686.54 ft (MD) Valid Test 42 P r e s s u r e V s T i m e P l o t : F i l e 2 3 4 T e s t 6 5 2 6 8 6 . 5 4 ft ( M D ) 2 6 8 6 . 3 4 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 5 10 0 20 0 30 0 40 0 500 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 6 2 Te s t 6 3 Te s t 6 4 Test 65 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 2 4 . 4 1 p s i a La s t R e a d 1 0 2 4 . 4 1 p s i a Dr a w d o w n M o b i l i t y 1 3 9 1 . 1 3 8 m d / c p ( 4 . 2 c c ) Mu d P r e s s u r e B e f o r e 1 4 3 0 . 1 3 p s i a Mu d P r e s s u r e A f t e r 1 4 3 0 . 0 5 p s i a Te m p e r a t u r e B e f o r e / A f t e r 6 9 . 2 5 D E G F / 6 9 . 2 D E G F Pr e t e s t R a t e / V o l u m e 1 . 2 7 c 3 / s / 4 . 2 c c Va l i d t e s t 10 1 8 10 1 9 . 4 10 2 0 . 8 10 2 2 . 2 10 2 3 . 6 10 2 5 P r e s s u r e ( p s i a ) 45 0 46 5 48 0 49 5 51 0 52 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 43 1e + 0 0 1e + 0 1 1e - 0 2 1e - 0 1 1e + 0 0 1e - 0 3 1e + 0 1 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 3 4 T e s t 6 5 2 6 8 6 . 5 4 f t ( M D ) 2 6 8 6 . 3 4 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 44 P r e s s u r e V s T i m e P l o t : F i l e 2 3 4 T e s t 6 5 2 6 8 6 . 5 4 ft ( M D ) 2 6 8 6 . 3 4 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 1 0 1 5 . 3 1 0 3 1 . 5 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 5 49 0 50 0 510 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r 62 63 Te s t 6 4 Te s t 6 5 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 2 4 . 4 1 p s i a La s t R e a d 1 0 2 4 . 4 1 p s i a Dr a w d o w n M o b i l i t y 1 3 9 1 . 1 3 8 m d / c p ( 4 . 2 c c ) Mu d P r e s s u r e B e f o r e 1 4 3 0 . 1 3 p s i a Mu d P r e s s u r e A f t e r 1 4 3 0 . 0 5 p s i a Te m p e r a t u r e B e f o r e / A f t e r 6 9 . 2 5 D E G F / 6 9 . 2 D E G F Pr e t e s t R a t e / V o l u m e 1 . 2 7 c 3 / s / 4 . 2 c c Va l i d t e s t 10 1 8 10 1 9 . 4 10 2 0 . 8 10 2 2 . 2 10 2 3 . 6 10 2 5 P r e s s u r e ( p s i a ) 45 0 46 5 48 0 49 5 51 0 52 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 45 Pressure Vs Time Plots Test #67 2656.26 ft (TVD) - 2656.46 ft (MD) Valid Test 46 P r e s s u r e V s T i m e P l o t : F i l e 2 4 0 T e s t 6 7 2 6 5 6 . 4 6 ft ( M D ) 2 6 5 6 . 2 6 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 1 0 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 5 10 0 20 0 30 0 400 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 6 6 Te s t 6 7 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 1 2 . 9 9 p s i a La s t R e a d 1 0 1 2 . 9 9 p s i a Dr a w d o w n M o b i l i t y 3 1 0 . 0 2 2 m d / c p ( 9 . 4 7 c c ) Mu d P r e s s u r e B e f o r e 1 4 1 5 . 7 6 p s i a Mu d P r e s s u r e A f t e r 1 4 1 4 . 8 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 6 6 . 9 3 D E G F / 6 6 . 8 5 D E G F Pr e t e s t R a t e / V o l u m e 1 . 5 8 c 3 / s / 9 . 4 7 c c Va l i d t e s t 97 8 98 6 . 8 99 5 . 6 10 0 4 . 4 10 1 3 . 2 10 2 2 P r e s s u r e ( p s i a ) 30 0 32 5 35 0 37 5 40 0 42 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 47 1e + 0 0 1e + 0 1 1e - 0 2 1e - 0 1 1e + 0 0 1e + 0 1 1e - 0 3 1e + 0 2 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 4 0 T e s t 6 7 2 6 5 6 . 4 6 f t ( M D ) 2 6 5 6 . 2 6 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 48 P r e s s u r e V s T i m e P l o t : F i l e 2 4 0 T e s t 6 7 2 6 5 6 . 4 6 ft ( M D ) 2 6 5 6 . 2 6 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 9 5 5 . 9 1 0 4 9 . 4 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 2 5 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 1 0 31 0 32 0 33 0 34 0 350 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r Te s t 6 6 Te s t 6 7 To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 1 2 . 9 9 p s i a La s t R e a d 1 0 1 2 . 9 9 p s i a Dr a w d o w n M o b i l i t y 3 1 0 . 0 2 2 m d / c p ( 9 . 4 7 c c ) Mu d P r e s s u r e B e f o r e 1 4 1 5 . 7 6 p s i a Mu d P r e s s u r e A f t e r 1 4 1 4 . 8 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 6 6 . 9 3 D E G F / 6 6 . 8 5 D E G F Pr e t e s t R a t e / V o l u m e 1 . 5 8 c 3 / s / 9 . 4 7 c c Va l i d t e s t 97 8 98 6 . 8 99 5 . 6 10 0 4 . 4 10 1 3 . 2 10 2 2 P r e s s u r e ( p s i a ) 30 0 32 5 35 0 37 5 40 0 42 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 49 Pressure Vs Time Plots Test #68 2673.26 ft (TVD) - 2673.46 ft (MD) Valid Test 50 P r e s s u r e V s T i m e P l o t : F i l e 2 4 1 T e s t 6 8 2 6 7 3 . 4 6 ft ( M D ) 2 6 7 3 . 2 6 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 2 5 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 1 5 10 0 20 0 300 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 2 0 . 3 4 p s i a La s t R e a d 1 0 2 0 . 3 4 p s i a Dr a w d o w n M o b i l i t y 2 6 8 . 3 1 3 m d / c p ( 1 8 . 7 6 c c ) Mu d P r e s s u r e B e f o r e 1 4 2 4 . 6 8 p s i a Mu d P r e s s u r e A f t e r 1 4 2 4 . 7 6 p s i a Te m p e r a t u r e B e f o r e / A f t e r 6 6 . 5 4 D E G F / 6 6 . 5 D E G F Pr e t e s t R a t e / V o l u m e 1 . 7 9 c 3 / s / 1 8 . 7 6 c c Va l i d t e s t 97 6 98 6 99 6 10 0 6 10 1 6 10 2 6 P r e s s u r e ( p s i a ) 10 0 13 5 17 0 20 5 24 0 27 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 51 1e + 0 0 1e + 0 1 1e + 0 2 1e + 0 1 1e + 0 2 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 4 1 T e s t 6 8 2 6 7 3 . 4 6 f t ( M D ) 2 6 7 3 . 2 6 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 52 P r e s s u r e V s T i m e P l o t : F i l e 2 4 1 T e s t 6 8 2 6 7 3 . 4 6 ft ( M D ) 2 6 7 3 . 2 6 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 9 4 5 . 3 1 0 6 5 . 4 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 2 5 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 1 5 13 0 14 0 15 0 16 0 170 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r To o l T y p e X P T Te s t T y p e N o r m a l P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 2 0 . 3 4 p s i a La s t R e a d 1 0 2 0 . 3 4 p s i a Dr a w d o w n M o b i l i t y 2 6 8 . 3 1 3 m d / c p ( 1 8 . 7 6 c c ) Mu d P r e s s u r e B e f o r e 1 4 2 4 . 6 8 p s i a Mu d P r e s s u r e A f t e r 1 4 2 4 . 7 6 p s i a Te m p e r a t u r e B e f o r e / A f t e r 6 6 . 5 4 D E G F / 6 6 . 5 D E G F Pr e t e s t R a t e / V o l u m e 1 . 7 9 c 3 / s / 1 8 . 7 6 c c Va l i d t e s t 97 6 98 6 99 6 10 0 6 10 1 6 10 2 6 P r e s s u r e ( p s i a ) 10 0 13 5 17 0 20 5 24 0 27 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 53 Pressure Vs Time Plots Test #8 2686.25 ft (TVD) - 2686.45 ft (MD) Valid Test 54 P r e s s u r e V s T i m e P l o t : F i l e 2 5 2 T e s t 8 2 6 8 6 . 4 5 f t ( M D ) 2 6 8 6 . 2 5 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 0 2 0 0 0 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 2 5 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 1 5 10 0 20 0 30 0 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r To o l T y p e X P T Te s t T y p e V o l u m e t r i c P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 2 1 . 8 6 p s i a La s t R e a d 1 0 2 1 . 8 6 p s i a Dr a w d o w n M o b i l i t y 4 7 3 . 2 5 9 m d / c p ( 1 8 . 8 6 c c ) Mu d P r e s s u r e B e f o r e 1 4 2 5 . 6 9 p s i a Mu d P r e s s u r e A f t e r 1 4 2 7 . 1 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 8 4 . 4 5 D E G F / 8 3 D E G F Pr e t e s t R a t e / V o l u m e 1 . 8 c 3 / s / 1 8 . 8 6 c c Va l i d t e s t 10 0 0 10 0 4 . 8 10 0 9 . 6 10 1 4 . 4 10 1 9 . 2 10 2 4 P r e s s u r e ( p s i a ) 20 0 22 5 25 0 27 5 30 0 32 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 55 1e + 0 0 1e + 0 1 1e - 0 3 1e - 0 2 1e - 0 1 1e + 0 0 1e + 0 1 1e - 0 4 1e + 0 2 P r e s s u r e D e r i v a t i v e s De l t a - T i m e ( s e c ) F l o w R e g i m e I d e n t i f i c a t i o n P l o t : F i l e 2 5 2 T e s t 8 2 6 8 6 . 4 5 f t ( M D ) 2 6 8 6 . 2 5 f t ( T V D ) Sp h e r i c a l D e r i v a t i v e Ra d i a l D e r i v a t i v e 56 P r e s s u r e V s T i m e P l o t : F i l e 2 5 2 T e s t 8 2 6 8 6 . 4 5 f t ( M D ) 2 6 8 6 . 2 5 f t ( T V D ) S A P P H I R E P R E S X P T - C P _ S A P ( p s i a ) 9 6 1 . 3 1 0 7 3 . 4 S A P P H I R E T E M P X P T - M T E P _ S A P ( D E G F ) 5 0 1 5 0 M O T O R S P E E D X P T - H M S 1 ( R P M ) 0 2 5 0 0 X P T P R E T E S T V O L U M E X P T - P T V 1 ( C 3 ) 0 1 5 21 0 22 0 23 0 24 0 250 Ti m e ( s e c ) Mu d B e f o r e Dr a w d o w n S t a r t Bu i l d u p S t a r t En d B u i l d u p Mu d A f t e r To o l T y p e X P T Te s t T y p e V o l u m e t r i c P r e t e s t Pa c k e r C o n v e n t i o n a l P r o b e Ga u g e C P _ S A P Fo r m a t i o n P r e s s u r e 1 0 2 1 . 8 6 p s i a La s t R e a d 1 0 2 1 . 8 6 p s i a Dr a w d o w n M o b i l i t y 4 7 3 . 2 5 9 m d / c p ( 1 8 . 8 6 c c ) Mu d P r e s s u r e B e f o r e 1 4 2 5 . 6 9 p s i a Mu d P r e s s u r e A f t e r 1 4 2 7 . 1 8 p s i a Te m p e r a t u r e B e f o r e / A f t e r 8 4 . 4 5 D E G F / 8 3 D E G F Pr e t e s t R a t e / V o l u m e 1 . 8 c 3 / s / 1 8 . 8 6 c c Va l i d t e s t 10 0 0 10 0 4 . 8 10 0 9 . 6 10 1 4 . 4 10 1 9 . 2 10 2 4 P r e s s u r e ( p s i a ) 20 0 22 5 25 0 27 5 30 0 32 5 Ti m e ( s e c ) De t a i l P r e s s u r e P l o t 57 Section 5 Notes 58 Notes: 59 Notes: 60 -1- REPSOL EXPLORATION NORTH AMERICA Final Well Report Well: Kachemach-1 WELL: Kachemach-1 -2- SUMMARY SECTION 1 - WELL DATA 1.1 OBJECTIVE 1.2 WELL LOCATION 1.3 CONTRACTORS 1.4 GEOSERVICES CREW 1.5 GEOSERVICES ALS-3B SYSTEM SECTION 2 – GEOLOGY 2.1 SAMPLING 2.2 GEOLOGY SUMMERY 2.3 STRATIGRAPHY 2.4 FORMATION TOPS 2.5 FORMATION DESCRIPTION 2.6 HYDROCARBON SHOW SECTION 3 – OPERATIONS 3.1 WELL PROFILE 3.2 DAYS vs TIME PLOT 3.3 DIARY 3.4 PHASE SUMMARY SECTION 4 - DRILLING DATA 4.1 BIT RECORDS 4.2 BHA RECORDS 4.3 MUD REPORTS 4.4 DEVIATION SURVEYS RECORDS 4.5 ELECTRICAL LOGS 4.6 CASING & CEMENTATION REPORTS LOGS MASTERLOG 2 in ENGINEERING LOG 2 in GASL RATIO LOG 5 in GEOPRESSURE LOG 1 in WELL: Kachemach-1 -3- 1.1 OBJECTIVE 1.2 WELL LOCATION 1.3 WELL DATA 1.4 CONTRACTORS 1.5 GEOSERVICES CREW 1.6 GEOSERVICES ALS 3B SYSTEM COMPANY: REPSOL LOCATION: NORTH SLOPE, ALASKA WELL: KACHEMACH-1 RIG: NABORS 9ES SECTION 1 WELL DATA WELL: Kachemach-1 -4- 1.1 OBJECTIVE Appraisal/exploration prospects for the 2012 campaign include oil-bearing Jurassic and Cretaceous sands that are situated within and on the flanks of a mega structure known as the “Colville High”. Kachemach-1 is situated on the South of this mega structure. The “Colville High” structure is a four way dip closure that covers an area of 5,180km2 (1.28 million acres). The objective of this well focus on to drill the Seabee, Torok, Kup C, Kup B and J5 formations that could be have potential for oil accumulations. 1.2 WELL LOCATION Kachemach-1 is situated on the South of this mega structure . The “Colville High” structure is a four way dip closure that covers an area of 5,180 km2 (1.28 million acres) . WELL: Kachemach-1 -5- 1.3 WELL DATA COUNTRY: USA BASIN: COLVILLE HIGH LOCATION: NORTH SLOP, ALASKA AREA: ADL301420 WELL NAME: KACHEMACH #1 WELL TYPE: Exploration GEOGRAPHIC COORDINATES: UTM6N Longitude: 150º 13’ 34.362” W Latitude: 70º 0’ 20.826” N X = 376930 m E Y = 7769600 m N GROUND LEVEL: +415 ft RIG FLOOR HEIGHT: +29 ft RIG FLOOR ELEVATION: +444 ft SPUD DATE: February 10th2012 at 14h00 TD DATE: 04/08/2012 TOTAL DAYS: 59 TOTAL MEASURED DEPTH: 10156 TOTAL VERTICAL DEPTH: 10154 REFERENCE WELLS: MELTWATER NORTH-1 & SOUTH-1, NARVAQ-1 OPERATOR: REPSOL RIG: NABORS 9ES WELL: Kachemach-1 -6- 1.4 CONTRACTORS DRILLING: Nabors MUD FLUIDS: Halliburton MUD LOGGING: Geoservices a Schlumberger Company CEMENTATION: Halliburton / Dowell Schlumberger DIRECTIONAL SERVICES: Schlumberger D & M MWD SERVICES: Schlumberger D & M ELECTRICAL LOGGING: Schlumberger 1.5 GEOSERVICES CREW 1.5.1. DATA ENGINEERS - Kerai Hamid - Shimelis Demissie - Kamel Benseddik - Eric Robinson 1.5.2. MUD LOGGERS - Philip Maurtaugh - Lindsay Gambin - Melissa Hernandez - Justin Ashar - William Ghozali WELL: Kachemach-1 -7- 1.6 GEOSERVICES ALS 3B SYSTEM Equipment 1.6.1 ALS3 Acquisition and Monitoring System Description Used on this job was Geoservices’ ALS3 system. ALS3 is Geoservices’ hardware acquisition system with software architecture. Traces are received from sensors into the gNA computer which transfers this data to the system by use of a field bus network. The acquisition chain can acquire data up to 50 Hz, ensuring high quality and reliable data. 1.6.2 ALS3 Computers GNA : The GNA replaces the DAP and the SCP from the old system and acquires all the sensor signal from the concentrator & field boxes. All calibrations are done on the GNA and to the concentrator & field boxes. RTM : Real Time Monitor - This computer receives all the data from RTG, performs the petroleum calculations, displays the parameters in alphanumerically, monitors internal and external alarms and drives the real time printers. It also maintains the depth database used as a backup in case of a network failure. RTG-NT : Real Time Graphic station - Receives data from GNA via a wits connection and graphically displays it in up to 40 user defined screen configurations. It also records the depth and time data in the SVX. TDX-NT : TDX computer creates and manages the database. It is also used to configure and generate all the logs and plots, reports and other off line packages. The computer was fitted with a CD-RW drive. SVX : A dedicated Server running on Novell NetWare that maintains a depth and time database which can be accessed by all the computers in the LAN. It also manages the printers in the network. WELL: Kachemach-1 -8- 1.6.3 Gas Equipment Monitoring System Gas services were provided for this well using a Geo Fast FID (GFF). The GFF is a high-speed Flame Ionization Device (FID) gas detection and analysis system and utilize an external computer for data storage. The data is automatically stored in an integrated solid-state hard disk and the system is interconnected with the RTM system. The GFF chromatographic analyzers can perform a complete cycle of gas analysis from C1 to C5 in 42 seconds with an accuracy of 1 ppm. The equipment incorporates two Flame Ionization Detectors, which are isolated and temperature stabilized. One is for the continuous total gas real time measurement and the other for the fast chromatograph analysis. This system is easy to maintain and calibrate with the Geoservices crew performing regular calibration checks and any necessary adjustments were completed at appropriate intervals. The primary method of gas extraction involved the use of the GZ11 gas extractor. 1.6.4 Geological Equipment Cuttings from the well were examined inside the unit. The cuttings were studied under a microscope to determine lithology and to check for the presence of hydrocarbons. The following equipment was utilized in the Unit: Microscope with Halogen Lamp Fluoroscope Oven for drying samples Various chemicals for geological tests Centrifuge dryer for samples WELL: Kachemach-1 -9- 2.1 SAMPLING 2.2 GEOLOGY SUMMARY 2.3 STRATIGRAPHY 2.4 FORMATION TOPS 2.5 FORMATION DESCRIPTION 2.6 HYDROCARBON SHOW SECTION 2 GEOLOGY COMPANY: REPSOL LOCATION: NORTH SLOPE, ALASKA WELL: KACHEMACH-1 RIG: NABORS 9ES WELL: Kachemach-1 -10- 2.1_SAMPLING Hole sections Intervals 16” Unwashed / Washed & dry samples 90’ 30’ from / to: 111’ to 1400’ 1400’ to 2410’ 12 ¼” Unwashed / Washed & dry samples 30’ from / to: 2410’ to 8650’ 8 ½ ” Unwashed / Washed & dry samples 30’ 10’ from / to: 8650’ to 10156’ Unwashed samples: 2 sets of cloth bags in plastic boxes SET: 1, 7 Box nº 1 from / to: 111’-1920’ Box nº 2 from / to: 1920’-2880’ Box nº 3 from / to: 2410’-3840' Box nº 4 from / to: 3840’-4710’ Box nº 5 from / to: 4710’-5700’ Box nº 6 from / to: 5700’-6900’ Box nº 7 from / to: 6900’-7740’ Box nº 8 from / to: 7740’-8580’ Box nº 9 from / to: 8580’-8950’ Box nº 10 from / to: 8950’-9390’ Box nº 11 from / to: 9390’-10156’ Washed & dry samples: 3 sets of paper bags in plastic boxes SET: 1, 2, 3 Box nº 1 from / to: 111’-1740’ Box nº 2 from / to: 1740’-2410’ Box nº 3 from / to: 2410’-3570’ Box nº 4 from / to: 3570’-4800’ Box nº 5 from / to: 4800’-5940’ Box nº 6 from / to: 5940’-7059’ Box nº 7 from / to: 7059’-8310’ Box nº 8 from / to: 8310’-9000’ Box nº 9 from / to: 9000’-9840’ Box nº 10 from / to: 9840’-10156’ Geochemical samples SET 4 Box nº 1 from / to: 111’-1890’ Box nº 2 from / to: 1890’-3690’ Box nº 3 from / to: 3690’-5490’ Box nº 4 from / to: 5490’- 7200’ Box nº 5 from / to: 7200’ – 8920’ Box nº 6 from / to: 8920’ – 10156’ WELL: Kachemach-1 -11- Isotubes samples SET 5 Box nº 1 from / to: 540’-3400’ Box nº 2 from / to: 3850’ – 6200’ Box nº 3 from / to: 6290’ – 7590’ Box nº 4 from / to: 7640’ - 8700’ Box nº 5 from / to: 8710’ - 9022’ 7640’ Mud samples SET 6 Box nº 1 from / to: 111’- 3450’ Box nº 2 from / to: 3450’ – 6551’ Box nº 3 from / to: 6551’ – 6675’ Box nº 4 from / to: 6675’ – 7080’ Box nº 5 from / to: 7080’ – 8040’ Box nº 6 from / to: 8040’-9750’ Box nº 7 from / to: 9750’-10156’ WELL: Kachemach-1 -12- 2.2 GEOLOGICAL SUMMARY The sediments comprising the present day “Colville High” structure were deposited within the North Slope Foreland Basin during the Mesozoic and Cenozoic. This basin developed on the Arctic Alaska plate, a continental fragment that includes all of northern Alaska, north western Canada, and north eastern Siberia. During the early Paleozoic, the Arctic Alaska plate represented the continental margin of the North American Craton. Subduction of oceanic crust beneath this margin produced a number of volcanic and plutonic events during the early to middle Paleozoic. Sediments accumulating along the plate margin were derived from the North American Craton and form the Franklinian tectono-stratigraphic sequence. These sediments were subsequently folded, faulted, and slightly metamorphosed during the Ellesmerian Orogeny of the latest Devonian. Following subducation in the Devonian, a passive continental margin formed along the Arctic Alaska Plate. This passive margin persisted through the Triassic and accumulated a package of sediments that constitute the Ellesmerian tectono-stratigraphic sequence. The Ellesmerian sequence records a series of major transgressive-regressive cycles. The base of the sequence consists of Mississippian non-marine coal-bearing sands, shales, and conglomerates that are succeeded by late Mississippian shallow marine shale and then by limestone’s and dolomites that comprised an extensive carbonate platform in the Pennsylvanian. Shoreline regression during the latest Pennsylvanian exposed this carbonate platform and led to the development of a regional unconformity surface at this top. Subsequent Permian and early Triassic marine transgression-regressive cycles are recorded by a succession of sands, silts, and shales that comprise the remainder of the Ellesmerian sequence. During the Triassic and urassic, early thrust sheets of the Brooks Range were produced by contractual deformation resulting from the collision of the continental margin with a newly developed island arc to the west. Rifting between the North American Craton and the Arctic Compostite Terrain also initiated at this time, and eventually led to the opening of the Arctic Ocean. The Beaufortian tectono-stratigraphic sequence represents the syntectonic fill of grabens that formed prior to and during this period of rifting. Beaufortian sediments comprise a complex of southward pro-grading, of flapping, and downlapping wedges of Jurassic and early Cretaceous aged shale, silt, and sandstone. Uplift along the rift margin during the early Cretaceous resulted in the erosion of the newly uplifted landmass, producing the regionally extensive hiatus referred to as the Lower Cretaceous Unconformity (LCU). The LCU abruptly truncates Beaufortian aged sand reservoirs, which are sealed by overlying Cretaceous shales (e.g., Pebble Shale, HRZ Shale, etc.) Subsidence of the rift margin in the Cretaceous created accommodation space that was filled by a series of sands and shales that comprise the Brookian tectono-stratigraphic sequence. This sequence records foreland basin deposits that were shed from the southern Brooks Range across northern Alaska. The North Slope Foreland Basin was filled from the southwest to the northeast in a series of migrating depocenters. Brookian basin fill provided the overburden necessary for petroleum source rocks (Triassic, Jurassic, and early Cretaceous shales) to be heated enough to reach thermal maturity and change Beaufortian and Brookian reservoirs targeted in this project. 2.3 STRATIGRAPHY The major stratigraphic units of the North Slope range from Triassic to Upper Cretaceous rocks that deposited mainly in marine environment. The primarily lithology of this statigraphic units composed of clay, claystone, shale, silt, siltstone, sand, sandstone and gravel. A generalized stratigraphic column is shown in the Figure bellow. WELL: Kachemach-1 -13- WELL: Kachemach-1 -14- 2.4 FORMATION TOPS Anticipated and Actual Formation Tops Anticipated Actual Formation Name MD/RT ft TVD/RT ft MD/RT ft TVD/RT ft Base Permafrost 1,330 1,330 1,390 1,170 T Upper Schradar Bluff 1,566 1,566 1,209 1,500 T Lower Schradar Bluff 3,344 3,344 3,375 3,373 MCU 3,688 3,688 4,637 3,511 T Tuluvak/Seabee 4,244 4,244 4,726 4,225 T Narvaq Fan SS 6,826 6,826 6,951 6,948 T Torok 6,973 6,973 7,125 7,119 T Torok Fan SS 7,286 7,286 7,438 7,419 T Hrz Shale 7,671 7,671 7,752 7,749 T Kup C 7,923 7,923 8,018 LCU 7,928 7,928 8,023 8,019 T Kup B 7,928 7,928 8,023 8,019 BCU 8,783 8,783 8,925 8,924 T-J-5 8,783 8,783 8,943 8,924 T Sag River SS 9,919 9,919 10,045 10,049 TD 10,394 10,394 10,048 10,056 2.5 Formations description The formation description of the Kachemach-1 well is based on microscopic examination of cutting samples integrated with ROP and Gamma, as well as recorded hydrocarbon gases. Logging commenced at the depth of 111 ft and ended at a depth of 10156 ft. The lithologies of these sections composed of mainly sliciclastic sediments. 2.5.1 Shallow Formation This formation drilled from surface to 1,500’. It is divided in to two parts. The Permafrost section composed of gravel, sand and clay with trace of coal and the lower section consist of dominantly clay with silt and sand. The Base of Permafrost is drilled from surface to 1,170’ and The Lower section of shallow formation encountered from 1,170’ to 1,500’. Most of the cuttings of the shallow formation have a gumbo appearance. Generally, low background gases observed in the shallow formation that ranges from 1-4 units. No formation gas and hydrocarbon shows observed in the samples. Conglomerate: Cream, tan, orange, black, gray, very large (30mm) to small, unconsolidated, rounded to sub angular, cherty, quartz, trace coal, diverse lithology. Sand: Transparent, translucent, gray, white clear, unconsolidated, dominantly course to medium grain, occucationally fine grain, rounded to sub rounded, moderately sorted, black rock fragments,. Silt: Light gray to gray, soft, amorphous. Clay: Light gray to gray, very soft, sticky, amorphous, slightly silty, none calcareous, trace coal. 2.5.2 Upper Schrader Bluff Top of Upper Schrader Bluff Formation was drilled from 1,500’ to 3,373’ with a thickness of 1,873’. Its upper boundary is marked by low ROP and high gamma ray that could be related to change of lithology from sand to clay. Increase of background gas was also observed relative to the upper formation. Clay-claystones is the major constituent of in the Upper Schrader Bluff WELL: Kachemach-1 -15- formation. Alternating of silt and siltstones also observed in the sample. Additionally, this formation consists of minor thin bed of sand and gravel. Most of the lithology of the Upper Schrader Bluff was deposited in shallow marine environment. Locally, non marine channel sand could be deposited in this formation that represents the Prince Creek Formation. The background gases in this formation range from 4 unit to 73 unit. Usually, significant formation gases were not observed in this section. However, 734 unit of maximum formation gas was observed at the depth of 2,085’. This formation gas is associated with sand lithology. In the sample observed trace to minor hydrocarbon shows (see show report #1). Clay: Light gray to gray, very soft, sticky, amorphous, slightly silty, minor quartz floater, none calcareous Silt: Light gray to gray, brown, soft-firm, amorphous, sub blocky, locally grading to very fine sandstone Sand: Light gray to gray, transparent, white clear, cream, unconsolidated, dominantly very fine to fine grain, occucationally medium grain, rounded to sub rounded, moderately to poorly sorted, inclusion of black rock fragments, cherty, quartz 2.5.3 T Lower Schrader Bluff The T Lower Schrader Bluff Formation was drilled from 3,373 ft to 3,511 ft with a thickness of 138 ft. The top of this formation has similar lithology with T Upper Schrader Bluff and make difficult Lithological to pick up its boundary. The Schrader Bluff Formation consists of shallow marine sediments. It is composed of marine bentonitic claystone with inter-bedded sand, silt, and ash. Very low background gases and formation gas were observed in this formation. Generally, the background gases fluctuate in the range from 1unit to 6 units and maximum formation gas was 78 units. Connection gases were not observed in this interval. Clay: Light gray to gray, very soft, amorphous, sticky, none calcareous, gummy Silt/Siltstone: Light gray to gray, brown, soft-firm, and sub blocky, arenaceous, and grading to very fine sandstone, none calcareous Sandstone: Light gray to gray, cream, unconsolidated, soft-friable, very fine to fine grain, rounded to sub rounded, moderately sorted, grading to siltstone, slightly calcareous, no shows. 2.5.4 MCU The MCU formation was drilled from 3511ft to 4225 ft with a thickness of 714 ft. Sandstone: light grey to greyish, white, soft, cream, occasionally silty, well sorted, well rounded, unconsolidated, No fluorescence. Claystone: grey to greyish, very soft, blocky sub blocky in parts, grading to siltstone. None calcareous Siltstone: grey to greyish, soft, very fine grained grading to silty claystone, sub blocky, slightly calcareous. 2.5.5 T Tuluvak/Seabee T Tuluvak/Seabee formation is one of the objectives of the target zone for oil hydrocarbon occurrences. It ranges in age from Cenomanian to Coniacian. This formation was encountered from 4225 ft to 6949 ft. The thickness of this interval is 2724 ft. The upper boundary of T Tuluvak/Seabee formation could not be easily picked up from gamma ray, ROP and its lthological composition. It does not show a sharp boundary. Generally, T Tuluvak/Seabee formation was deposited as part of a marine transgression and subsequent low-stand. The transgressive portion of the T Tuluvak/Seabee is mainly comprised WELL: Kachemach-1 -16- of gray and silty shale that are inter-bedded with rare thin sandstone. The lowstand portion of this formation contains slope and basin fan deposits. In the sandstone of T Tuluvak/Seabee formation does not observed significant amount of hydrocarbon shows that could be accumulate potential oil. The recorded background and formation gases range from 4-105 units and 89-116 units, respectively. No connection gases were recorded in this interval. Claystone: grey, soft, amorphous, corrosive, slightly silty, occasionally grading to siltstone. Shale: dark grey to greyish blocky, firm, s blocky, v slightly calcareous, slightly hard, laminated, carbonaceous, glauconitic, pyretic. Siltstone: grey to greyish, soft, very fine grained, grading to silty clay, sub blocky, slightly calcareous. Sandstone: light grey, fine, moderately sorted, sub angular, calcareous cement, grading to siltstone. 2.5.6 T Narvaq Fan SS Narvaq fan sandstone is a member of Tuluvak/Seabee formations. It was drilled from 6949 ft to 7120 ft with thickness of 171 ft. Claystone: medium grey to medium dark grey, very soft, sticky (cohesive), very fine sand grains, well hydrated slightly silty, traces of volcanic ash. Shale: dark grey to greyish blocky, firm, sub blocky, very to slightly calcareous, slightly hard, laminated, carbonaceous, glauconitic, micro-mica, pyretic. Siltstone: light grey to grey brown, soft to firm, blocky to platy, moderately calcareous, slightly sandy. Sandstone: light grey, very fine to fine, sub angular, pale yellow to yellowish fluorescence, very friable, pyretic, calcareous, unconsolidated. 2.5.7 Torok T Torok formation is one of the objectives zone for oil exploration. The lower Cretaceous Torok Formation is predominantly comprised of a thick series of shale with interbedded thin-bedded silts and fine grains sands of deeper water origin that represent a prograding package of slope and basin floor sediments. Bottom-set beds contain 10-30 ft thick, fine grained sandstones, which have been interpreted as both turbidites and basin floor fans. 2.5.7.1 T Torok T Torok Formation encounter at the depth of between 7120 ft to 7420 ft. The thickness of this formation is of 300 ft. This interval composed of mainly clay and claystone with minor amount of thin bedded siltstone. Gamma ray and ROP doesn’t show significant change at its top boundary compared to with the bottom part of T Narvaq Fan SS. WELL: Kachemach-1 -17- The Clay of the T Torok formation has shown low grade of compaction that could not be reaching a sufficient maturity level for oil generation. As a result, in this formation recorded low amount of gases. Generally, the background gases range from 75 to 150 units and maximum formation gas was 151 units. Clay/Claystone: medium light grey to grey, soft, slightly firm, amorphous, sticky, hydrated, minor to 5% very fine sand grain with calcite matrix, silty, grading to siltstone, slightly calcareous, trace calcite mineral, trace pyrite, minor to 10% medium gray Shale. Siltstone: medium light gray, firm to moderately hard, sub blocky, sandy, arenaceous, micaceous, partly argillaceous matrix, partly grading to very fine sandstone, slightly calcareous, trace of sandstone. 2.5.7.2 T Torok F SS The T Torok F SS was drilled from 7420 ft to 7750 ft with a thickness of 330 ft. It is mainly composed of sand and silt with minor amount of clay and claystone. The sand is quartz-rich. The formation is indicating featureless response on the gamma ray. The contact marked by sand on clay and is placed at the base of the lowest sand bed. Show #2 is observed in the silty sandstone section with 1452 unit of formation gas. Background gases range in this formation from 79 to 144 units. Sandstone: light grey, light brownish, very fine to fine grains, moderately sorted, sub angular, calcareous matrix, grading to siltstone in part, trace of pyrite, trace volcanic ash, and trace calcite crystal, dull yellow fluorescence and slow dull yellow cut. Siltstone: medium gray, moderately firm, sub blocky, micaceous, argillaceous matrix, none calcareous, trace of sand 2.5.8 T HRZ Shale The HRZ Shale was deposited during the Early Cretaceous in north Alaska. It is relatively thick shale sequence that overlies the Lower Cretaceous Unconformity (LUC). The HRZ Shale is an important regional marker in the well logs because of its characteristically high gamma ray signatures. High concentrations of radio active minerals (uranium and thorium) cause the high HRZ gamma-ray log reading. The HRZ Shale encountered at the depth of 7750’ and has a thickness of 270’. It is basically composed of medium to dark gray shale with finely thin bedded of siltstone. The HRZ Shale also contains matrix supported pebbles and frosted quartz grains. This formation was deposited during a time of maximum flooding is rich in organic material and is an important oil source rock on the North Slope. Show #3 with a maximum of 945 unit of formation gas is identified in this section. Generally, Background gases range from 101 units to 466 units. Connection gas was also recognized in this section. Shale: medium to dark grey, firm to moderately hard, sub blocky to sub platy, brittle in part, slightly silty, partly grading to siltstone, argillaceous, none calcareous, finely laminated, trace pyrite, 2.5.9 T Kup C T Kup C is missing in the Kachemach-1 exploration well. WELL: Kachemach-1 -18- 2.5.10 T Kup B The T Kup B is a sequence of clastic sediments deposited on a shallow marine shelf during Late Cretaceous time. The formation composed of predominantly of sandstone, siltstone, and shale that are separated from the HRZ formation by the regional LCU. The top contact of Kup B formation is characterized by low gamma ray signatures relative to HRZ formation. It is encountered at the depth of between 8020 ft to 8925 ft. The thickness of this formation is 905 ft. Shows #4 and #5 are observed in the silty sandstone and shale section with maximum of 722 units and 1618 units of formation gases, respectively. Background gases range in this formation from 93 to 313 units. Connection gas was also observed in this section. The maximum connection gas was 1017 units. Sandstone: medium gray, cream, minor light brown and cream, friable, very fine to vine grains, moderately sorted, sub angular, calcite matrix, trace glauconitic grains, fair porosity, some samples shows with light brown oil stain, light yellow direct fluorescence, slow blooming bluish milky cut fluorescence. Siltstone: dark gray, firm to moderately hard, blocky, micaceous, argillaceous matrix, none calcareous, trace calcite crystal, Shale: Dark gray, firm to moderately hard, platy, blocky, fissile, brittle, slightly silty, grading to siltstone in part, macaceous, none calcareous, trace pyrite, 2.5.11 T J-5 The J-5 sand can be statigraphically classified within the Beaufortian strata. It is the youngest Upper Jurassic sand within the Kingak Shale and has been subdivided into two units. The T of J-5 sand has unconformity, which is known as BCU (Bottom Cretaceous Unconformity). The top contact of J-5 sand is not clearly picked up by gamma ray signatures and cutting sample in the Kachemach-1 well. However, very fine to fine grain, moderately well sorted quartz grains with variable glauconitic and clay content observed below its top boundary. This zone is characterized by low gamma ray and has been recorded 46 unit of formation gas. J-5 sand is encountered at the depth of between 8925 ft to 10050 ft with a thickness of 1125 ft. J-5 sand comprises an upward-coarsening shore face of very thin-bedded, very fine to fine grain, well sorted to moderately rounded sand and siltstone with variable glauconitic and clay content. It is transgressive near shore deposits. On the other hand, the most part of the J-5 formation consists of dominantly dark gray to brownish gray shale with very low background gases. Generally, no significant show interval observed within J-5 formation. Small amount of connection gases with pressure caving were recorded throughout this section. Mud weight was raised from 10.0 ppg to 10.4 ppg due to the appearances of connection gases and pressure caving. Shale and Claystone: medium gray to dark gray, brownish gray, occasionally light gray, firm to moderately hard, soft in part, dominantly platy to sub platy, occasionally sub blocky, fissile, brittle in part, slightly silty, macaceous, none calcareous, trace pyrite, trace quartz grains, trace sand, trace to minor pressure caving Siltstone: medium gray, occasionally light gray, firm to moderately hard, sub blocky, rarely grading to very fine grain sandstone, argillaceous, none to slightly calcareous, trace glauconitic grains, trace calcite crystal, Sand: transparent, clear, very fine to vine grains, sub rounded, moderately sorted, quartz and glauconitic rich WELL: Kachemach-1 -19- 2.5.11 T Sag River SS The Sag River Sandstone was deposited during a period of minor shoreline regression during the late Triassic in a low-energy marine shelf environment. It is overlain by progradational deltaic clastics of the Kingak Shale and is silty, very fine to fine grain, glauconitic, bioturbated shallow marine sandstone. The top contact of Sag River SS is clearly picked up by gamma ray signatures and cutting sample in the Kachemach-1 well. It is characterized by log gamma ray reading and high content of carbonate composition in the cutting samples. Sag River SS was drilled from 10050 ft to 10156 ft. The most part of the Sag River SS formation composed of mainly medium gray to dark gray shale with minor amount of siltstone. Usually, the recorded background gases were very low and that with range from 5 units to 13 units. No formation gases were observed. Small amount of connection gases with pressure caving were recorded throughout this section. Shale: medium dark gray, firm to moderately hard, platy to sub platy, fissile, brittle in part, none calcareous, trace pyrite, trace-50% finely bedded carbonates mixed with clay minerals, minor splintery and curved pressure caving Siltstone: medium light gray, firm to moderately hard, sub blocky, occasionally grading to very fine grain sandstone, argillaceous, trace glauconitic grains, trace pyrite WELL: Kachemach-1 -20- 2.6 Hydrocarbon Show WELL: Kachemach-1 -21- WELL: Kachemach-1 -22- WELL: Kachemach-1 -23- WELL: Kachemach-1 -24- WELL: Kachemach-1 -25- WELL: Kachemach-1 -26- WELL: Kachemach-1 -27- WELL: Kachemach-1 -28- WELL: Kachemach-1 -29- WELL: Kachemach-1 -30- 3.1 WELL PROFILE 3.2 DAYS Vs TIME PLOT 3.3 DIARY 3.4 PHASE SUMMARY SECTION 3 OPERATIONS COMPANY: REPSOL LOCATION: NORTH SLOPE, ALASKA WELL: KACHEMACH-1 RIG: NABORS 9ES WELL: Kachemach-1 -31- 3.1 WELL PROFILE Co: REPSOL Block Name: ADL391420 Location: NORTH SLOPE, ALASKA Coordinates: X: 376,930 m E Well: KACHEMACH-1 Y: 7,769,600 m N 26” HOLE TD: 111 ft 12 1/4” HOLE TD: 8,650 ft 8 ½” OPEN HOLE TD: 10,156 Rig floor elevation 28 ft Ground elevation: 415 ft 16” HOLE TD: 2,410 ft 20” CONDUCTOR PIPE: 111 ft 13 3/8” CASING SHOE: 2396 ft FIT: EMW – 13.78ppg @ 8670 ft FIT: EMW – 13.05 ppg @ 2430 ft 9 5/8” CASING SHOE: 8617 ft WELL: Kachemach-1 -32- 3.2 DAYS vs TIME 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 0 1 02 03 04 05 06 0 Prognosis Actual MD 16" Phase to 2410' 13 3/8" Casing shoe at 2396' days de p t h 12 1/4" Phase to 8650' 9 5/8" Casing shoe at 8617' 8 1/2" Phase to 10156’ WELL: Kachemach-1 -33- 3.3 DIARY SUMMARY Date: Report # Depth: 02/10/2012 1 315 ft Spud Kachemach-1 on 10th Feb 2012 To 315'. POOH to change BHA, Continue Test Rig Alarm. Make up BHA#1& RIH to 80'. Date: Report # Depth: 02/11/2012 2 1085 ft Continue M/U BHA & RIH, Test MWD tools, Test good, Cont. TIH to bottom, Circ while working on pump 1, Drill ahead to 1058'. Date: Report # Depth: 02/12/2012 3 2035 ft Drill ahead to 1217', Rig repair, Work on pumps, Cont. drilling to 2035'. Date: Report # Depth: 02/13/2012 4 2410 ft Drill ahead to 2410', Circ. Bottoms up, POOH, Back to bottom, Circ. Mud, POOH to run casing. Date: Report # Depth: 02/14/2012 5 2410 ft Continue POOH and laid down MWD tools. R/U Casing running tools and RIH with 13 3/8” Casing to 2396’ (Casing Shoe). Date: Report # Depth: 02/15/2012 6 2410 ft RIH with Inner string on 5” Drill pipes to 2314’. Circulated conditional mud. Performed Cement Job as per program. Nipple down Diverter. Date: Report # Depth: 02/16/2012 7 2410 ft Continue N/D Diverter; N/U BOP. Date: Report # Depth: 02/17/2012 8 2410 ft N/U BOP. Date: Report # Depth: 02/18/2012 9 2410 ft P/U 5’’ drill pipes and rack back. Date: Report # Depth: 02/19/2012 10 2410 ft Rig Services; P/U 5” Drill Pipes and Rack back. Date: Report # Depth: 02/20/2012 11 2410 ft RIH and circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 02/21/2012 12 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 02/22/2012 13 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 02/23/2012 14 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 02/25/2012 15 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 02/26/2012 16 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 02/27/2012 17 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 02/29/2012 18 2410 ft Circulate conditional mud; while waiting for approval to continue operation. WELL: Kachemach-1 -34- Date: Report # Depth: 03/01/2012 19 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 03/02/2012 20 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 03/03/2012 21 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 03/04/2012 22 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 03/05/2012 22 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 03/06/2012 23 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 03/07/2012 24 2410 ft Circulate conditional mud; while waiting for approval to continue operation. Date: Report # Depth: 03/08/2012 28 2410 ft Prepared to test BOP's. Performed BOP's test, Tested casing, Picked up and made up 12 1/4" BHA Date: Report # Depth: 03/09/2012 29 2944 ft Picked up and made up 12 1/4" BHA, Tested MWD tools, Tested casing, Drilled out cement and flot equipment. Drilled 20' in the new formation and ran FIT. Drilled 12 1/4" hole to 2944'. Date: Report # Depth: 03/10/2012 30 4120 ft Drilled from 2944’ to 3611', POOH for wiper trip to casing shoe, RIH & resume drilling from 3611' to 4120'. Date: Report # Depth: 03/11/2012 31 4951 ft Drilled from 4120’ to 4951', POOH for wiper trip to casing shoe, RIH to bottom for drilling. Date: Report # Depth: 03/12/2012 32 6282 ft Drilling from 4952’ to 6292’ Date: Report # Depth: 03/13/2012 33 6550 ft Drilled from 6292’ to 6548'. Mud losses at 6548', Pumped LCM pills to cure the losses, Drilled ahead to 6550', losses in progress. Date: Report # Depth: 03/14/2012 34 6770 ft Drilled from 6550’ to 6770'. Losses in progress to down hole, pumped multiple LCM pills, trying to build up mud volume. Date: Report # Depth: 03/15/2012 35 7059 ft Continued to experience losses down hole. Pumped multiple LCM pills down hole then drilled to a depth of 7059’. Currently tripping out of the hole to Test BOP’s Date: Report # Depth: 03/16/2012 36 7059 ft Continued to POOH to surface, L/D MWD tool and bit, Prepare for BOP's test, Test BOP's. Date: Report # Depth: 03/17/2012 37 7059 ft Cont. to test BOP's. Picked up 12 1/4" BHA with new Hughes bit and TIH to 6400', Break circulation and condition mud to 9.5 ppg. Date: Report # Depth: 03/18/2012 38 7059 ft Cont. to circulate & condition mud, POOH to surface due to MWD failure, Serviced MWD tool & TIH, Shallow test MWD too at 13 3/8" casing shoe, Cont. TIH, Maximum circulated gas: 22 unit. Date: Report # Depth: 03/19/2012 39 7285 ft Cont. TIH to bottom, circulate and condition mud, Re-log the last stand, Drill ahead to 7174', Lost communication with the MWD tool, Circulate and down link, MWD tool, Drill ahead from 7174' to 7285'. WELL: Kachemach-1 -35- Date: Report # Depth: 03/20/2012 40 7817 ft Drilling ahead to 7538', observed gas increase. Stop drilling and circulate bottoms up, max gas 1453 unit @ 7501'. Drilled ahead from 7538' to - 7817' Date: Report # Depth: 03/21/2012 41 8650 ft Drilling ahead from 7817' to 8236', Circulated bottoms up due to high connection gas @ 8139', Continued drilling from 8236' to TD @ 8650', picked up off bottom, and Circulated bottoms up. Date: Report # Depth: 03/22/2012 42 8650 ft Circulated bottoms up. POOH for wiper trip, RIH back to bottom, Started circulation, Observed losses down hole, reduced pump flow rate & pump LCM pill, Monitor the hole in the Trip Tank; Maximum Circulated gas: 101 unit; Average circulated BBG: 33 unit. Date: Report # Depth: 03/23/2012 43 8650 ft POOH with 5" DP, Pump pill, Reaming at tight spot, Cont. POOH with 5" DP, L/D BHA, R/U Schlumberger wireline tools & perform wireline logging Run #1. Date: Report # Depth: 03/24/2012 44 8650 ft Continue wireline logging Run#1. R/D wireline tools. Performed BOP test. 19 bbls total losses. Date: Report # Depth: 03/25/2012 45 8650 ft Continue BOP test; R/U wireline tools & performed wireline logging Run#3. Date: Report # Depth: 03/26/2012 46 8650 ft Continue perform wireline logging Date: Report # Depth: 03/27/2012 47 8650 ft Continue perform wireline logging Date: Report # Depth: 03/28/2012 48 8650 ft Continue perform wireline logging. R/D Wireline tools. Top Drive Sevices. Made up & RIH with clean out BHA. Date: Report # Depth: 03/29/2012 49 8650 ft Continue Made up & RIH with clean out BHA on 5" DP to 2467’. Circulate (Max Trip gas: 27Unit), Continue RIH without losses to +/- 6050'. Circulate (Max Trip Gas: 201 Units). Continue RIH to 7400'. Circulate (Max Trip Gas: 205 Units). Flow check, Continue RIH to 8430' (Observed Fill hole).Ream & Wash down to bottoms. Date: Report # Depth: 03/30/2012 50 8650 ft Continue Ream & Wash down to bottoms. Max Trip gas: 220 units. Circulate Clean Hole, Attempts to pull out of the hole failed, Pump Hi- Vis sweep, POOH with back reaming to 8100'. Continue POOH without reaming from 8100' to surface. Date: Report # Depth: 03/31/2012 51 8650 f Continue L/D BHA, Flush BOP's stack and changing ram, Rig up casing running tools, RIH 9 5/8'' Casing to 2361'. Date: Report # Depth: 04/01/2012 52 8650 f Continue RIH 9 5/8'' Casing to 2411, Circulate bottoms up, Cont. RIH to 4430', Circulate bottoms up, Cont. RIH to 6044', Circulate bottoms up, Cont. RIH to 8617'. Total losses while RIH casing 208 bbls, Circulate & Perform Cement Job. Date: Report # Depth: 04/02/2012 53 8650 Continue Cement Job. Wait on cement. N/D BOP. N/U BOP & pressure test. Date: Report # Depth: 04/03/2012 54 8650 Continue BOP test. Pick up and RIH with 8 ½'' BHA on 5" DP to 8370' Date: Report # Depth: 04/04/2012 55 8650 Continue RIH with 8 ½'' BHA on 5" DP to 8514' TOC. Drill out cemt and casing float equipment. Drill new formation to 8670'. Circulate clean hole. Perform LOT. Drill ahead 8½'' section from 8670' to 8745'. Circulate. Wiper trip to Csg shoe. Rih back to 8745'. Continue Drill to 8753'. POOH due to low ROP. Date: Report # Depth: 04/05/2012 56 8753 Continue POOH. Picked up a new bit & M/U BHA and RIH on 5" DP to 8617'. Ream and wash down to bottoms. Drill ahead with 8½'' section to 8813'. WELL: Kachemach-1 -36- Date: Report # Depth: 04/06/2012 57 9488 Drill ahead with 8½'' section from 8813' to 9488'. Date: Report # Depth: 04/07/2012 58 10093 Drill ahead with 8½’’ section from 9488' to 10093'. Date: Report # Depth: 04/08/2012 59 10156 Drill ahead with 8½'' section from 10093' to 10156'. Circulate. POOH to 8500'. Slip & Cut drill line. Continue POOH & Laid down BHA. Date: Report # Depth: Date: Report # Depth: Date: Report # Depth: Date: Report # Depth: WELL: Kachemach-1 -37- 3.4_PHASE SUMMERY 16” PHASE F/ Depth: 111 ft T/ Depth: 2410 ft Mud Density: 8.6 – 9.7 ppg (Spud mud) Made up BHA #1 equipped with a new 16” milled tooth tricone bit type MX-1 (bit #1) dressed with 3x18+1x13/32 nozzles and spud KACHEMACH-1 at 15:00 o10 Febraury2012. Drilled from 80’ to 315’; Circulated clean hole and POOH for MWD BHA. Made up directional drilling and RIH to 315’. Drilled ahead 16’’ hole from 315’ to 2410’ section TD. Circulated clean hole and performed wiper trip to 1000’. RIH back to bottoms and circulated clean hole. Max gas Trip 112 unit. POOH and laid down MWD tools. The 16“ phase was drilled in one run and 33.2 h. RIH with 13 3/8” casing L-80 72 ppf to 2396’. RIH with Inner string on 5”drill pipes to 2316’. Circulation hole clean and conditioned mud. Performed Cement Job as per program. Nipple up BOP’s and tested. 12 ¼” PHASE F/ Depth: 2410 ft T/ Depth: 8650 ft Mud Density: 9.5 – 9.8 ppg Performed BOP test with state representative. Performed casing test. Made up BHA #2 equipped with a new 12 1/4” Hughes PDC bit type 7024719 (bit #2) dressed with 6x12/32 nozzles (TFA: 0.663). Drilled from 2410 ft to 2435 ft, circulated hole clean prior FIT. Performed FIT to EMW: 13.05 ppg at 2430’. Drilled ahead to 3611 ft. Circulate hole cleaned prior performed short trip to casing shoe. Ran in hole back to bottom and drilled ahead to 6548’ where total losses occurred. Added LCM to regulate and cure losses. Drilled ahead from 6548’ to 6770'. Losses in progress to down hole, pumped multiple LCM pills, tried to build up mud volume. Continued to experience losses down hole. Pumped multiple LCM pills down hole then drilled ahead to a depth of 7059’. Pulled out of the hole and to surface, laid down MWD tool and bit. Prepared and tested BOP as per program, tests were ok then picked up 12 1/4" BHA with new Hughes bit and tripped in hole to 6400', broke circulation and condition mud to 9.5 ppg. Pulled out to surface due to MWD failure, Serviced MWD tool & trip again in hole to bottom, Shallow test MWD too at 13 3/8" casing shoe, Continued trip in hole, maximum circulated gas: 22 unit. Continued the run in hole with BHA # 3 to bottom, circulated and condition mud, Re-logged the last stand. Drill ahead to 7174', lost communication with the MWD tool, Circulate and down link, MWD tool. Drilled ahead from 7174' to 7538'’. Observed gas increase. Stopped drilling and circulate bottoms up, max gas 1453 unit @ 7501'. Drilled ahead to 8236', Circulated bottoms up due to high connection gas @ 8139', Continued drilling from 8236' to section TD @ 8650', picked up off bottom, Circulated bottoms up for geology, geologist confirmed casing point. Preformed a wiper trip to 13 3/8” casing shoe and Rih back to bottoms. Circulated clean hole and POOH to 6600’. Spot pill and pumped LCM pill at 6600’. Move the pill 1000’ up. Continue POOH and laid down BHA. Rigged up wireline tools and performed open hole logging. Performed Run#1A and Run#1B logging. Rig down wireline tools. Performed weekly BOP test. Continued wireline logging. Made & RIH with clean out BHA on 5” drill pipes to to 2467’. Circulate (Max Trip gas: 27Unit), Continue RIH without losses to +/- 6050'. Circulate (Max Trip Gas: 201 Units). Continue RIH to 7400'. Circulate (Max Trip Gas: 205 Units). WELL: Kachemach-1 -38- Flow check, Continue RIH to 8430' (Observed Fill hole).Ream & Wash down to bottoms. Max Trip gas: 220 units. Circulate Clean Hole, Attempts to pull out of the hole failed, Pump Hi-Vis sweep, POOH with back reaming to 8100'. Continue POOH without reaming from 8100' to surface. Laid down BHA. Rig up casing running tools and RIH to 8617’. Maximum losses while running casing 208 bbl. Circulated and performed cement job as per program. Nipple up BOP and performed pressure test. 8 ½” PHASE F/ Depth: 8650 ft T/ Depth: 10156 ft Mud Density: 10.0 – 1.04 ppg LOT at 8670’, MW: 10.0 ppg, EMW: 13.78 ppg Make up new BHA #6 with 8 ½” HCC QD506X dressed with 6x12/32 nozzles (TFA: 0.66).and RIH same with 5” DP to 8514’. Displace to 10.0 ppg new mud and test casing to 3000 psi. drilled out cement, float collar and float shoe to 8650’. Drilled new formation to 8670’ and circulated clean hole. Performed Leak of test to 13.78 ppg EMW. Drilled ahead 8 ½’’ section to 8752’. Circulated bottoms up and POOH due low ROP. Picked up a new Huges MXL-1X Bit dressed with 3x15/32 nozzles (TFA: 0.51) and RIH with BHA # 7 to 8617’. Reamed and washed down from 8617’ to bottoms. Drilled ahead 8 ½’’ hole section from 8752’ to 10156’. Circulated clean hole. POOH to 8500’. Slip and cut the drill line ; Continued POOH and laid down MWD tools. Rig up Wireline tools and performed open hole logging as per Repsol program. WELL: Kachemach-1 -39- 4.1 BIT RECORDS & PERFORMANCE 4.2 BHA RECORDS 4.3 MUD REPORTS 4.4 DEVIATION SURVEY RECORDS 4.5 ELECTRICAL LOGS 4.6 CASING & CEMENTATIONS REPORTS SECTION 4 DRILLING DATA COMPANY: REPSOL LOCATION: NORTH SLOPE, ALASKA WELL: KACHEMACH-1 RIG: NABORS 9ES WELL: Kachemach-1 -40- 4.1 BIT RECORDS BIT #1 BIT #2 Size 16” Size 12.25 Type MX-1 Type HC QD506FX Mnfctr Hughes Mnfctr Hughes Serial # 5205218 Serial # 7024719 Jets 1x16, 3x18 Jets 6x12 TFA (inch²) 0.942 TFA (inch²) 0.663 Depth In (ft) 111 Depth In (ft) 2,410 Depth Out (ft) 2410 Depth Out (ft) 7,059 Drilled (ft) 2299 Drilled (ft) 4,649 Time (hrs) 33.2 Time (hrs) 53,6 ROP (ft/hr) 70 ROP (ft/hr) 86.73 WOB (Klbs) 7-18 WOB (Klbs) 20-45 RPM 101 RPM 90-120 FLOW (gpm) 560 FLOW (gpm) 380-550 PRESS (psi) 1250 PRESS (psi) 1200-1620 TORQUE (K lb/ft) 3-5 TORQUE (lb/ft) 1.8-4.7 Mud Type WBM Mud Type WBM Mud Weight (ppg) 8.9-9.2 Mud Weight (ppg) 9.8 -9.8 BIT #3 BIT #4 Size 12 1/4” Size 8.5 Type QD506X Type HCC QD506X Mnfctr Hughes Mnfctr Hughes Serial # 7139057 Serial # 7127535 Jets 6 x 14 Jets 6x12 TFA (inch²) 0.902 TFA (inch²) 0.663 Depth In (ft) 7059 Depth In (ft) 8650 Depth Out (ft) 8650 Depth Out (ft) 8752 Drilled (ft) 1591 Drilled (ft) 102 Time (hrs) 38.7 Time (hrs) 4.5 ROP (ft/hr) 44.11 ROP (ft/hr) 23 WOB (Klbs) 2-45 WOB (Klbs) 20-40 RPM 60-150 RPM 20-80 FLOW (gpm) 400-645 FLOW (gpm) 380-410 PRESS (psi) 1200-1750 PRESS (psi) 1400-1750 TORQUE (K lb/ft) 2-5 TORQUE (lb/ft) 1800-5030 Mud Type WBM Mud Type WBM Mud Weight (ppg) 9.5-9.8 Mud Weight (ppg) 10.0 -10.1 WELL: Kachemach-1 -41- BIT #5 Size 8.5 ” Type MXL-1X Mnfctr Hughes Serial # 5203136 Jets 3 x 15 TFA (inch²) 0.518 Depth In (ft) 8752 Depth Out (ft) 10156 Drilled (ft) 1404 Time (hrs) 52.3 ROP (ft/hr) 26.8 WOB (Klbs) 20-45 RPM 40-60 FLOW (gpm) 500-550 PRESS (psi) 3000-3200 TORQUE (K lb/ft) 10-12 Mud Type WBM Mud Weight (ppg) 10.0-10.4 WELL: Kachemach-1 -42- 4.2 BHA RECORDS OD: Outside Diameter ID: Inside Diameter Run #1 - BHA #1 (111 to 2410 ft) N° ITEM OD Inch ID Inch ITEM LENGTH (ft) CUMUL LENGTH (ft) 1 BIT #1 16 1.6 1.6 2 A962M5630SP 9.625 7.880 28.08 29.68 3 NM Stab 8.375 3.00 7.85 37.53 4 arcVISION825 8.375 2.813 19.84 57.37 5 Telescope 825 8.375 5.109 27.74 85.11 6 NM Stab 8.250 3.00 7.83 92.94 7 3x8” NMDC 8.125 2.813 88.91 181.85 8 12 1/8” NM Stab 8.25 2.813 7.59 189.44 9 X/O 8.063 2.813 3.04 192.48 10 3x8” Collar Steel 8.00 2.813 90.13 282.61 11 Hydraulic Jar 7.75 3.00 31.8 314.41 12 23x5” HWDP 5.00 3.00 708.19 1022.6 Run #2 - BHA #2 (From 2410 ft to 7,059 ft ) N° ITEM OD Inch ID Inch ITEM LENGTH (ft) CUMUL LENGTH (ft) 1 BIT #2 12.25 3.25 1.2 1.2 2 8.25” Motor 8.25 2.00 27.62 28.82 3 8.25”Sub 8.25 2.75 3.56 32.38 4 12.25”Stab 8.25 2.81 7.26 39.64 5 arcVision825 8.25 5.688 19.84 59.48 6 Telescope825 8.44 4.25 27.67 87.15 7 8.25” NM stab 8.38 2.81 8.01 95.16 8 8” NM collar 8.0 2.81 28.2 123.36 9 8” DC 8.13 2.81 30.30 153.66 10 8” DC 8.19 2.75 30.41 184.07 11 12.125” Stab 8.25 2.88 7.59 191.66 12 X/O 8.06 2.813 3.04 194.7 13 3x8” Collar Steel 8.00 2.81 90.13 284.83 14 Hydraulic Jar 7.75 3.00 31.8 316.63 15 23x5” HWDP 5.00 3.00 708.19 1024.82 WELL: Kachemach-1 -43- Run #3 - BHA #3 (From 7,059 ft to 8650 ft) N° ITEM OD Inch ID Inch ITEM LENGTH (ft) CUMUL LENGTH (ft) 1 BIT #3 12.25 3.25 1.2 1.2 2 8.25” Motor 8.25 2.00 29.97 31.17 3 8.25”Sub 8.25 2.75 3.56 34.73 4 12.25”Stab 8.25 2.81 7.40 42.13 5 arcVision825 8.25 5.688 19.78 61.91 6 Telescope825 8.44 4.25 27.74 89.65 7 8.25” NM stab 8.38 2.81 8.01 97.66 8 8” NM collar 8.0 2.81 28.2 125.86 9 8” DC 8.13 2.81 30.30 156.16 10 8” DC 8.19 2.75 30.41 186.57 11 12.125” Stab 8.25 2.88 7.59 194.16 12 X/O 8.06 2.813 3.04 197.20 13 3x8” Collar Steel 8.00 2.81 90.13 287.33 14 Hydraulic Jar 7.75 3.00 31.8 319.13 15 23x5” HWDP 5.00 3.00 708.19 1027.33 Run #4 - BHA #4 – 12 ¼” Clean out BHA. N° ITEM OD Inch ID Inch ITEM LENGTH (ft) CUMUL LENGTH (ft) 1 BIT #4 12.25 3.25 1.2 1.2 2 12.25”Stab 8.25 2.81 7.40 8.60 3 8.25”Sub 8.25 2.75 3.56 12.16 4 8” NM collar 8.0 2.81 28.2 40.36 5 8” DC 8.13 2.81 30.30 70.66 6 8” DC 8.19 2.75 30.41 101.07 7 12.125” Stab 8.25 2.88 7.59 108.66 8 X/O 8.06 2.813 3.04 111.70 9 3x8” Collar Steel 8.00 2.81 90.13 201.83 10 Hydraulic Jar 7.75 3.00 31.8 233.63 11 23x5” HWDP 5.00 3.00 708.19 941.82 WELL: Kachemach-1 -44- Run #5 - BHA #5-8 ½” (From 8650 ft to 8752 ft) N° ITEM OD Inch ID Inch ITEM LENGTH (ft) CUMUL LENGTH (ft) 1 BIT #5 8.5 2.25 1.3 1.3 2 6 3/4” Motor 6.75 5.5 25.73 27.03 3 Flota Sub 6.75 2.25 3.50 30.53 4 8 3/8” Stab 6.75 2.81 6.05 36.58 5 ARC-6 6.75 2.810 19.09 55.67 6 proVision 675 6.9 3.87 38.49 94.16 7 8 3/8” NM stab 6.75 2.81 4.59 98.75 8 Telescope 675 6.75 5.10 27.97 126.72 9 6 3/4” NM collar 6.75 2.81 30.67 157.39 10 8 3/8” NM Stab 6.75 2.81 6.81 164.2 11 2x6 3/4” NM DC 6.75 2.81 59.81 224.01 12 6.75’’ DC 6.75 2.5 92.42 316.43 13 14x5” HWDP 5.00 3.0 434 750.43 14 6.5’’Hydraulic Jar 6.5 2.75 32.05 782.42 15 Well Commander 7.0 2.25 12.92 795.4 16 9x5” HWDP 5.00 3.00 184.16 977.11 WELL: Kachemach-1 -45- Run #6 - BHA #6-8 ½” (From 8752 ft to 10156 ft) N° ITEM OD Inch ID Inch ITEM LENGTH (ft) CUMUL LENGTH (ft) 1 BIT #6 8.5 2.25 0.84 0.84 2 6 3/4” Motor 6.75 5.5 25.73 26.57 3 Flota Sub 6.75 2.25 3.50 30.07 4 8 3/8” Stab 6.75 2.81 6.05 36.12 5 ARC-6 6.75 2.810 19.09 55.21 6 proVision 675 6.9 3.87 38.49 93.70 7 8 3/8” NM stab 6.75 2.81 4.59 98.29 8 Telescope 675 6.75 5.10 27.97 126.26 9 6 3/4” NM collar 6.75 2.81 30.67 156.93 10 8 3/8” NM Stab 6.75 2.81 6.81 163.74 11 2x6 3/4” NM DC 6.75 2.81 59.81 223.55 12 6.75’’ DC 6.75 2.5 92.42 315.97 13 14x5” HWDP 5.00 3.0 434 748.12 14 6.5’’Hydraulic Jar 6.5 2.75 32.05 780.17 15 Well Commander 7.0 2.25 12.92 793.09 16 6x5” HWDP 5.00 3.00 184.16 977.25 WELL: Kachemach-1 -46- 4.3 MUD REPORTS PHASE 16” Date Depth Ft Type MW ppg FV PV YP PH Chlorides mg/l KCL % wt. 10-02-12 315 Spud Mud 8.6 180 48 29 8.8 400 ---- 11-02-12 1058 Spud Mud 9.0 170 40 40 8.5 800 ---- 12-02-12 2035 Spud Mud 9.3 83 26 27 8.7 600 ---- 13-02-12 2410 Spud Mud 9.7 60 20 29 8.6 700 ---- 14-02-12 2410 Spud Mud 9.7 60 20 29 8.6 700 ---- 15-02-12 2410 Spud Mud 9.7 60 20 29 8.6 700 ---- 16-02-12 2410 Spud Mud 9.7 60 20 29 8.6 700 ---- 17-02-12 2410 Spud Mud 9.7 60 20 29 8.6 700 ---- PHASE 12 ¼” Date Depth ft Type MW ppg FV PV YP PH Chlorides mg/l KCL % wt. 03-09-12 2944 KCL polymer 9.8 51 13 22 9.50 27,000 ---- 03-10-12 4120 KCL polymer 9.8 47 14 23 9.40 27,000 ---- 03-11-12 4951 KCL polymer 9.8 46 16 22 10.10 27,000 ---- 03-12-12 6282 KCL polymer 9.8 45 14 22 10.20 27,000 ---- 03-13-12 6550 KCL polymer 9.8 45 16 22 10.20 27,000 ---- 03-14-12 6550 KCL polymer 9.8 45 16 22 10.20 27,000 ---- 03-15-12 7059 KCL polymer 9.8 48 16 22 9.7 26000 ---- 03-16-12 7059 KCL polymer 9.8 48 16 22 9.7 26000 ---- 03-17-12 7059 KCL polymer 9.8 24 26 9.7 27000 ---- 03-18-12 7059 KCL polymer 9.5 15 19 10.1 28000 ---- 03-19-12 7213 KCL polymer 9.5 54 19 26 9.5 28000 ---- 03-20-12 7744 KCL polymer 9.7 50 15 20 10.0 2500 ---- 03-21-12 8650 KCL polymer 9.7 60 17 24 9.0 26500 ---- 03-22-12 8650 KCL polymer 9.75 67 15 20 9.0 31000 ---- 03-23-12 8650 KCL polymer 9.8 48 15 16 9.8 29000 ---- 03-24-12 8650 KCL polymer 9.8 56 14 19 9.2 29000 ---- 03-25-12 8650 KCL polymer 9.7 47 13 17 9.2 29000 ---- 03-26-12 8650 KCL polymer 9.75 48 11 17 9.3 28000 ---- 03-27-12 8650 KCL polymer 9.7 47 11 16 9.5 28000 ---- 03-28-12 8650 KCL polymer 9.7 46 10 14 9.5 28000 ---- 03-29 -12 8650 KCL polymer 9.75 45 11 17 10.5 27000 ---- 03-30 -12 8650 KCL polymer 9.75 43 11 16 10.7 27000 ---- 03-30 -12 8650 KCL polymer 9.75 45 12 16 10.7 27000 ---- 03-31 -12 8650 KCL polymer 9.75 49 13 17 10.0 26000 ---- 04-01-12 8650 KCL polymer 9.75 49 13 17 10.0 26000 ---- 04-02-12 8650 KCL polymer 9.75 49 13 17 10.0 26000 ---- WELL: Kachemach-1 -47- PHASE 8 1/2” Date Depth ft Type MW ppg FV PV YP PH Chlorides mg/l KCL % wt. 04-03-12 8650 KCL polymer 10 44 12 20 9.6 30000 ---- 04-04-12 8753 KCL polymer 10 48 15 20 11.2 28000 ---- 04-05-12 8813 KCL polymer 10 54 17 21 10.0 27000 ---- 04-06-12 9488 KCL polymer 10.1 46 20 18 10.2 26000 ---- 04-07-12 10093 KCL polymer 10.4 45 18 16 10.6 27000 ---- 04-08-12 10056 KCL polymer 10.4 46 20 18 10.5 30000 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- WELL: Kachemach-1 -48- 4.4 DEVIATION SURVEYS RECORDS MD ft Inc deg Azm deg TVD ft VS ft N/-S ft E/-W ft DLS deg 0 0 0 0 0 0 0 0 122 0.17 253.78 122 -0.05 -0.05 -0.18 0.14 233.55 0.03 278.35 233.55 -0.09 -0.09 -0.37 0.13 303.56 0.04 82.42 303.56 -0.09 -0.09 -0.36 0.1 392 0.04 72.2 392 -0.08 -0.08 -0.3 0.01 489.93 0.03 246.79 489.93 -0.07 -0.07 -0.29 0.07 579.8 0.08 224.38 579.8 -0.13 -0.13 -0.35 0.06 670.24 0.19 173.59 670.24 -0.32 -0.32 -0.38 0.17 763.67 0.43 170.99 763.67 -0.83 -0.83 -0.31 0.26 855 0.57 168.97 854.99 -1.62 -1.62 -0.17 0.15 950.79 0.71 178.25 950.78 -2.67 -2.67 -0.06 0.18 1043.91 0.84 189.43 1043.89 -3.92 -3.92 -0.15 0.22 1139.32 0.77 190.39 1139.29 -5.24 -5.24 -0.38 0.08 1235.82 0.82 182.31 1235.78 -6.56 -6.56 -0.53 0.13 1332.34 0.84 177.17 1332.29 -7.96 -7.96 -0.52 0.08 1429.92 0.85 182.51 1429.86 -9.39 -9.39 -0.52 0.08 1525.1 0.95 179.93 1525.03 -10.88 -10.88 -0.55 0.11 1621.93 0.95 182.23 1621.85 -12.49 -12.49 -0.58 0.04 1715.18 0.85 185.81 1715.08 -13.95 -13.95 -0.68 0.12 1813.29 0.82 188.55 1813.18 -15.37 -15.37 -0.86 0.05 1908.84 0.87 190.36 1908.72 -16.76 -16.76 -1.09 0.06 2002.66 0.91 184.14 2002.53 -18.21 -18.21 -1.27 0.11 2098.27 0.89 184.32 2098.13 -19.71 -19.71 -1.38 0.03 2194.14 0.84 184.19 2193.99 -21.15 -21.15 -1.49 0.05 2289.8 0.96 185.41 2289.64 -22.64 -22.64 -1.62 0.12 2334.57 0.89 183.19 2334.4 -23.36 -23.36 -1.67 0.18 2576.98 0.75 204.41 2576.79 -26.68 -26.68 -2.43 0.14 2673.23 0.72 201.64 2673.03 -27.82 -27.82 -2.92 0.05 2768.98 0.76 200.65 2768.77 -28.98 -28.98 -3.37 0.04 2864.73 0.77 198.7 2864.51 -30.18 -30.18 -3.8 0.03 2959.77 0.79 196.21 2959.54 -31.42 -31.42 -4.18 0.04 3055.68 0.82 193.94 3055.45 -32.71 -32.71 -4.53 0.04 3151.56 0.91 194.84 3151.31 -34.11 -34.11 -4.89 0.1 3247.64 0.93 196.15 3247.38 -35.59 -35.59 -5.3 0.03 3344.2 0.87 184.33 3343.93 -37.07 -37.07 -5.58 0.2 3439.03 0.84 183.62 3438.75 -38.48 -38.48 -5.67 0.03 3535.28 0.86 191.64 3534.99 -39.89 -39.89 -5.86 0.12 3630.33 0.79 187.32 3630.03 -41.23 -41.23 -6.09 0.1 3726.49 0.71 186.1 3726.18 -42.48 -42.48 -6.24 0.08 3821.59 0.74 190.99 3821.27 -43.67 -43.67 -6.42 0.07 3918.01 0.7 193.67 3917.68 -44.86 -44.86 -6.68 0.06 4012.94 0.75 193.65 4012.61 -46.02 -46.02 -6.96 0.05 4108.46 0.75 197.59 4108.12 -47.22 -47.22 -7.29 0.05 4204.93 0.77 195.58 4204.58 -48.45 -48.45 -7.66 0.03 4300.68 0.74 196.06 4300.33 -49.66 -49.66 -8 0.03 4396.49 0.77 197.46 4396.12 -50.86 -50.86 -8.36 0.04 4492.86 0.77 203.78 4492.49 -52.07 -52.07 -8.82 0.09 4586.76 0.74 205.79 4586.37 -53.19 -53.19 -9.34 0.04 4684.16 0.78 206.45 4683.77 -54.35 -54.35 -9.91 0.04 4780.08 0.86 212.77 4779.68 -55.54 -55.54 -10.59 0.12 4875.11 0.89 212.5 4874.69 -56.77 -56.77 -11.37 0.03 4969.93 0.93 217.42 4969.5 -58 -58 -12.24 0.09 WELL: Kachemach-1 -49- 5066.56 1.09 220.54 5066.13 -59.32 -59.32 -13.31 0.17 5162.44 1.12 219.1 5161.98 -60.75 -60.75 -14.49 0.05 5258.86 1.18 225.87 5258.38 -62.17 -62.17 -15.81 0.15 5355.11 1.16 228.47 5354.61 -63.51 -63.51 -17.25 0.06 5449.07 1.12 231.23 5448.55 -64.72 -64.72 -18.68 0.08 5545.58 1.08 232.22 5545.05 -65.87 -65.87 -20.14 0.04 5641.67 1.05 237.98 5641.12 -66.89 -66.89 -21.6 0.12 5737.62 1.03 238.32 5737.05 -67.81 -67.81 -23.08 0.02 5833.48 0.98 238.4 5832.9 -68.69 -68.69 -24.51 0.05 5928.96 0.95 240.44 5928.37 -69.51 -69.51 -25.9 0.05 6025.81 0.91 241.3 6025.21 -70.28 -70.28 -27.27 0.05 6120.75 1 243.77 6120.13 -71 -71 -28.67 0.11 6216.87 0.97 246.11 6216.24 -71.7 -71.7 -30.17 0.06 6312.54 0.91 245.83 6311.89 -72.34 -72.34 -31.59 0.06 6408.37 0.88 250.69 6407.71 -72.9 -72.9 -32.98 0.08 6503.21 0.81 257.08 6502.54 -73.29 -73.29 -34.33 0.13 6599.37 0.69 254.09 6598.69 -73.6 -73.6 -35.55 0.14 6697.44 0.65 254.99 6696.75 -73.9 -73.9 -36.65 0.04 6791.35 0.61 264.45 6790.67 -74.09 -74.09 -37.66 0.12 6887.38 0.73 271.97 6886.68 -74.12 -74.12 -38.78 0.15 6980.62 0.66 277.77 6979.92 -74.02 -74.02 -39.9 0.1 7094.28 0.69 273.96 7093.57 -73.89 -73.89 -41.24 0.05 7189.19 0.77 275.3 7188.47 -73.79 -73.79 -42.44 0.09 7287.69 0.82 273.68 7286.96 -73.68 -73.68 -43.8 0.06 7381.1 0.9 276.97 7380.36 -73.55 -73.55 -45.2 0.1 7476.5 0.94 278.05 7475.75 -73.35 -73.35 -46.72 0.05 7572.02 0.97 278.82 7571.26 -73.12 -73.12 -48.29 0.03 7668.24 0.75 281.75 7667.47 -72.86 -72.86 -49.71 0.23 7766.25 0.81 280.04 7765.47 -72.61 -72.61 -51.02 0.07 7861.94 0.83 278.48 7861.15 -72.39 -72.39 -52.37 0.03 7955.52 0.79 292.36 7954.72 -72.05 -72.05 -53.64 0.21 8052.17 0.84 295.51 8051.36 -71.49 -71.49 -54.9 0.07 8148.79 0.72 307.84 8147.97 -70.81 -70.81 -56.02 0.21 8242.69 0.77 319.87 8241.86 -69.97 -69.97 -56.89 0.17 8338.23 0.86 327.28 8337.39 -68.87 -68.87 -57.69 0.14 8434.73 0.89 333.32 8433.88 -67.59 -67.59 -58.42 0.1 8529.95 0.94 334.23 8529.09 -66.23 -66.23 -59.09 0.05 8570.81 0.87 332.44 8569.94 -65.65 -65.65 -59.38 0.18 8615.66 0.91 315.39 8614.79 -65.1 -65.1 -59.79 0.6 8714.2 1 330.57 8713.31 -63.79 -63.79 -60.76 0.27 8810.14 1.04 338.16 8809.24 -62.26 -62.26 -61.49 0.15 8906.7 1.2 330.43 8905.79 -60.56 -60.56 -62.32 0.23 9002.52 1.43 328.09 9001.57 -58.67 -58.67 -63.45 0.25 9097.07 1.52 322.91 9096.09 -56.67 -56.67 -64.83 0.17 9193.13 1.71 327.08 9192.11 -54.44 -54.44 -66.38 0.23 9289.78 1.76 333.4 9288.72 -51.9 -51.9 -67.83 0.2 9385.92 2.09 331.93 9384.8 -49.03 -49.03 -69.32 0.34 9481.61 1.99 337.82 9480.44 -45.96 -45.96 -70.76 0.24 9575.13 2.06 336.56 9573.89 -42.92 -42.92 -72.04 0.09 9672.04 2.28 333.89 9670.74 -39.59 -39.59 -73.58 0.25 9767.08 2.32 335.6 9765.7 -36.15 -36.15 -75.21 0.08 9862.05 2.28 342.04 9860.6 -32.6 -32.6 -76.58 0.27 9959.41 2.37 351.6 9957.87 -28.77 -28.77 -77.47 0.41 WELL: Kachemach-1 -50- 4.5 ELECTRICAL LOGS 12 ¼” Hole section. Run# 1A Date: 23/03/2012 Operation: RTSC-DSI-PPC-GR From: 2396 m to 8572 m. Run# 1B Date: 24/03/2012 Operation: FMI-GR From: 2425 m to 8563 m. Run# 1C Date: 25/03/2006 Operation: CMR-PEX-ECS-HNGS From: 2396 m to 8572 m. Run# 1D Date: 26/03/2006 Operation: CMR-PEX From: 2396 m to 8530 m. Run# 1E Date: 27/03/2006 Operation: XPT From: 2656 m to 8175 m. Run# 1F Date: 27/03/2006 Operation: MSCT From: 2800 m to 8368 m. Run# 1F2 Date: 28/03/2006 Operation: MSCT From: 6564 m to 8368 m. 8 ½” Hole section. Run# 2A Date: 09/04/2012 Operation: AIT-CMR-PEX-ECS-HNGS-EDTC. Run# 4B Date: 15&16/12/2005 Operation: FMI-GR Run# 4C Date: 16/12/2005 Operation: CMR-GR Run# 4D Date: 16/12/2005 Operation: USIT WELL: Kachemach-1 -51- 4.6_CASING & CEMENTATION REPORT 13 3/8” CASING DESCRIPTION Phase Open hole (ft) Shoe depth (ft) Csg OD inches Csg ID inches Weight lbs/ft Grade Nb joints 16” 111 2396 13.375 12.259 72.0 L-80 70 jts 13 3/8” CASING CEMENTATION The cement job was carried out as follows: Mix and pump 50 bbls 10 ppg of Mud, flush at 3 BPM Followed by 296 bbls of 10.7 ppg lead cement at 5 BPM; Followed by 59 bbls of 15.8 ppg Tail Cement. Drop Dart and displace same with 5 bbls water and 36 bbls Mud. Did not Bump Float; Shut down and bleed of pressure. * NOTE: NO MUD LOSSES NOTICED DURING CMT JOB - HAD 50 BBLS CMT RETURNED 9 5/8” CASING DESCRIPTION Phase Open hole m Shoe depth m Csg OD inches Csg ID inches Weight lbs/ft Grade Nb joints 12 ¼ “ 2410 8618 9.625 8.681 53.5 L-80 211 jts. 9 5/8” CASING CEMENTATION The cement job was carried out as follows on 2 stages: Rigged up cement head. test lines to 4000 psi, OK. After Pre job safety meeting. Pumped 25 bbls of spacer , Dropped wiper plug. Mixed and pumped 180.2 bbls of cement 15.8ppg . Dropped the 1st stage plug and displaced with rig pump. Bumped the plug at 7120 stks with 1000 psi. Check floats and load second stage plug. Attempt to pressure up with rig pump & shear stage collar set @ 2700 psi, stage up to 3000 psi and shear out @ 3150 psi. circulate through stage collar 3 BPM @ 110 psi. wait on cement and cement 2nd stage collar with 1700 psi. bleed off and check for flow return. WELL: Kachemach-1 -52- MASTERLOG 2 in ENGINEERING LOG 2 in GAS RATIO LOG 5 in GEOPRESSURE LOG 1 in LOGS COMPANY: REPSOL LOCATION: NORTH SLOPE, ALASKA WELL: KACHEMACH-1 RIG: NABORS 9ES
