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208-194
�20e- I'm Guhl, Meredith D (DOA) From: Regg, James B (DOA) Sent: Tuesday, April 23, 2019 3:38 PM To: Guhl, Meredith D (DOA) Subject: RE: Inspection Judgement call please: Anadarko Well is on federal lease and BLM did witness the final abandonment. Even though Anadarko failed to follow-up on the AOGCC Inspector's request during the location inspection I suggest considering the location clear. Jim Regg Supervisor, Inspections AOGCC 333 W.711 Ave, Suite 100 Anchorage, AK 99501 907-793-1236 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 Jim Regg at 907- 793-1236 or iim.reee@alaska.eov. From: Guhl, Meredith D (DOA) Sent: Tuesday, April 23, 2019 2:56 PM To: Regg, James B (DOA) <jim.regg@alaska.gov> Subject: Inspection Judgement call please: Anadarko Hi Jim, Two Anadarko wells: Wolf Ck 4 PTD 208-194 and Gubik 4 PTD 208-206 both had inspections where the inspector saw a depression in the cellar area and recommended that the company rep on the tour grab a sample of nearby mud for determination as to whether natural or drilling. Nothing additional is in either well history. Would we send an inspector out again, or consider these sites cleared? Thanks, Meredith Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.euhl(c@alaska.eov 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, DATA SUBMITTAL COMPLIANCE REPORT 9/6/2012 Permit to Drill 2081940 Well Name /No. WOLF CK 4 Operator ANADARKO PETROLEUM CORPORA API No. 50- 119 - 20002 -00 -00 MD 3250 TVD 3247 Completion Date 2/25/2009 Completion Status P &A Current Status P &A REQUIRED INFORMATION Mu Log Yes _ Samples No Directional Survey No DATA INFORMATION Types Electric or Other Logs Run: Platform Express, Induction, GR, Sonic Scanner, CMR, FMI, MDT, S (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Data 0 Data Digital Dataset Log Log Run Interval OH/ Type Med /Frmt Number Name Scale Media No Start Stop CH Received Comments Log ✓' Formation Tester 5 Col 1010 3193 Open 3/9/2009 MFDT 20- Feb -2009 Log — Formation Micro Ima 5 Col 2 1010 9625 Open 3/9/2009 FMI Maxis Generated Field Print 19- Feb -2009 Log Formation Tester OTH Blu 1010 9625 Open 3/9/2009 MFDT 20- Feb -2009 i Log Gamma Ray 5 Col 1 & 2 94 3193 Open 3/9/2009 Hostile Enviro Natural GR, Sprec GR, Final Print 8- ! Feb -2009 / 18- Feb -2009 ' Log ' Sonic 5 Col 2 1010 3178 Open 3/9/2009 Sonic Scanner Maxis Generated Field Print 19- Feb -2009 Log Magnetic Resonance 5 Col 2 1010 3178 Open 3/9/2009 CMR Maxis Generated 19- Feb -2009 Log '-` Caliper log 5 Col 94 3178 Open 3/9/2009 PPC 4 arm Caliper and Cement Volume Log Composite 8- Feb -2009 / I 19 Feb 2009 III i Log ✓ Induction /Resistivity 2 Col 94 3193 Open 3/9/2009 PLATFORM EXPRESS Array Induction - HRLA- Bulk Density- Neutron Final Composite 8- Feb - 2009/18- Feb -2009 Log / Sample 5 Col 1254 3226 Open 3/9/2009 Mech Sidewall Core tool 21- Feb -2009 Log HNGS Maxis Gen Field See Notes 5 Blu 1010 3193 Case 3/9/2009 Lo Print 18- Feb -2009 / Log Sample 5 Blu 1552 3231 Open 3/9/2009 Chono Sample Taker CST 22- Feb -2009 1 DATA SUBMITTAL COMPLIANCE REPORT 9/6/2012 Permit to Drill 2081940 Well Name /No. WOLF CK 4 Operator ANADARKO PETROLEUM CORPORA API No. 50 119 - 20002 - 00 - 00 MD 3250 TVD 3247 Completion Date 2/25/2009 Completion Status P &A Current Status P &A UIC N Log / Induction /Resistivity 5 Col 94 3193 Open 3/9/2009 PLATFORM EXPRESS Array Induction -HRLA- Density - Neutron Final Composite 8- Feb - 2009/18- Feb -2009 Log t. Induction /Resistivity 2 Col 160 3250 Open 3/19/2009 MD EWR, DGR, ROP Log � Induction /Resistivity 5 Col 160 3250 Open 3/19/2009 MD EWR, DGR, ROP Log r Induction /Resistivity 1 Col 160 3250 Open 3/19/2009 MD EWR, DGR, ROP EDVC Las 17698 Induction /Resistivity 989 3250 Open 3/19/2009 OH LAS & DLIS EWR • Data Plus PDS, EMF and CGM graphics Dir Srvy Rpt" Report: Final Well R 0 0 Open 4/6/2009 Final Well Report, Gen Info, Daily Summ, Morn Rep, Bit Rec, Mud Rep, Show Rep, Survey Rep, Days vrs Depth ED "C Pdf 17770 Report: Final Well R 0 3250 Open 4/6/2009 Final Well Report, Gen Info, Daily Summ, Morn Rep, Bit Rec, Mud Rep, Show Rep, Survey Rep, Days vrs Depth w /Mud Logs in PDS graphics Logue Mud Log 2 Col 120 3250 Open 4/6/2009 MD Engineering Log Log -- Mud Log 2 Col 120 3250 Open 4/6/2009 MD Combo Log Log Mud Log 5 Col 120 3250 Open 4/6/2009 MD Combo Log Log Dip OTH Col 1043 3250 Open 4/6/2009 Structural Dip, FMI Dip 20" • per 100' Log • Dip 5 Col 1043 3250 Open 4/6/2009 Structural Dip, FMI Dip Log ' Sonic 5 Col 1 & 2 94 3178 Open 4/13/2009 Sonic Scan, DT Compressional & DT Shear Final Composite Log 8- Feb - 2009/19- Feb -2009 Log ■" Sonic 5 Col 995 3200 Open 4/13/2009 Sonic Scan, Shear and Compressional DT Log 18- Feb- 2009 **LARGE FORMAT ** ED ✓C Las 17921 Miscellaneous 995 3200 Open 4/23/2009 Bedding, Dips, Fracture Picks DLIS & LAS Plus PDS graphics DATA SUBMITTAL COMPLIANCE REPORT 9/6/2012 Permit to Drill 2081940 Well Name /No. WOLF CK 4 Operator ANADARKO PETROLEUM CORPORA API No. 50- 119 - 20002 -00 -00 MD 3250 TVD 3247 Completion Date 2/25/2009 Completion Status P &A Current Status P &A UIC N ED t''C Exc 18222 Miscellaneous 600 3240 Open 7/6/2009 Isotech Labs Mud Gas Analysis in XLS and PDF graphics ED ✓C Las 18703 Induction /Resistivity 115 3200 Open 9/23/2009 OH LAS Final Composits in PDS, CGM and EMF graphics ED ''C Pdf 18712 Analysis - Misc 2043 3226 Open 9/30/2009 Core Labs THIN SECTION, SEM, & XRD Study of Core Thins Section Micrography Included ED ✓C Pdf 18780 Analysis - Misc 1552 3231 Open 10/26/2009 Core Labs Sidewall Core Analysis Plus Core Photos Analysis - Misc 1552 3231 Open 10/26/2009 Core Labs Sidewall Core Analysis Plus Core Photos Rpt Analysis - Misc 2043 3226 Open 9/30/2009 Core Labs THIN SECTION, SEM, & XRD Study of Core Thins Section Micrography Included Well Cores /Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments Cuttings 60 3250 4/13/2009 1306 Cores and /or Samples are required to be submitted. This record automatically created from Permit to Drill Module on: 12/17/2008. ADDITIONAL INFORMATION �j • Well Cored? Y c++30 - CoJ z kt – Daily History Received? ' N Chips Received? Formation Tops %` N Analysis L N Received? Comments: Compliance Reviewed By: —__ _ __ Date: L ° p 3 • 1 Core Laboratories 6316 Windfern Road Houston, Texas 77040 Tel: 713 - 328 -2673 Fax: 713 - 328 -2170 Core Lab RESERVOIR OPTINI1ATION www.corelab.com TRANSMITTAL LETTER To: Alaska Oil and Gas Commission From: Mary Nelis 333 West 7 Ave. Suite 100 Title: Geologist Anchorage , AK 99501 Date: Sept 24, 2009 Attn. Librarian Job Number: 090207G, 090130G QTY DESCRIPTION CONTENTS Report/CD Thin Section, SEM, and XRD Study of Core Samples from Wolf Creek 4 p Y Well, Foothills Program, North Slope Alaska Report/CD Thin Section, SEM, and XRD Study of Core Samples from Chandler #1 Well, North Slope Alaska I 1 INSTRUCTIONS: Plea e acknowledge receipt by signing and returning one copy via ' (713- 328 - 2170), e-mail (marv.nelis a(coretab oom) or M- RECEIVED BY: v A DATE: - REMARKS: O -O/ 2) /o13 • Scblumberger DATA & CONSULTING SERVICES - D.a NOTE! Once you have verified content(s) of packaged delivery, please sign this form acknowledging receipt of item(s) and fax copy to (281) 285 - 1936. Letter of Transmittal September 17, 2009 GeoQuest Job Number: ANNK -00083 / 104197 Job Processed by: Jaime Almendarez (281) 285 -1346 Operator Name: Anadarko Petroleum Well /Lease ID: Wolf Creek 4 Field Name: Wildcat Logging Run(s) #: 1 -2, 94' - 3193', 18- Feb -2009 API Number: 50- 119 - 20002 -00 Borough: North Slope State /Country: Alaska Distribution: Description of Data: (1) Well Log DVD (CGM -DLIS- LAS -PDS) w/ Processed Data Company Name: Anadarko Petroleum Corporation Address: 1201 Lake Robbins Drive, The Woodlands, Texas 77380 Attention: Rebecca Isbell Sent Via UPS: Ground Courier: Other: Please acknowledge receipt of above item(s) by signing and faxing one (1) copy of this transmittal to (281) 285 -1936, Signature of Representative Received By: Date: Description of Data: (1) Well Log CD (LAS- PDS -CGM) Company Name: Petro - Canada Address: 150 -6th Avenue S.W., Calgary, Alberta, Canada T2P 3Y7 Attention: Cathy Vitale — Geological Op Room 2358 Sent Via UPS: World Wide Express I Courier: Other: Please acknowledge receipt of above item(s) by signing and faxing one (1) copy of this transmittal to (281) 285 -1936. Signature of Representative Received By: Date: Description of Data: (1) Well Log CD (LAS - PDS -CGM) Company Name: BG International Ltd. Address: 500 - 222 -3rd Avenue S.W., Calgary, Alberta, Canada T2P OB4 Attention: Chris Opekar Sent Via UPS: World Wide Express Courier: Other: Please acknowledge receipt of above item(s) by signing and faxing one (1) copy of this transmittal to (281) 285 -1936. Signature of Representative Received By: Date: Page 1 of 3 w S MEMORANDA State oft Iaska Alaska Oil and Gas Conservation Commission TO: Jim Regg . 4/4 ( &i DATE: July 23, 2009 P. I. Superviso �l FROM: Lou Grimaldi SUBJECT: Location Clearance inspection Petroleum Inspector Wolf Creek #4 Anadarko Petroleum Co. PTD #208 -194 Exploratory Tuesday, July 21, 2009: I made an inspection of surface condition for location clearance on Anadarko Petroleum's exploratory well "Wolf Creek #4 ". I met Federico Lier (Anadarko Geologist) at Air Logistics' heliport in Deadhorse and flew to three locations today including this one. The surface texture of the tundra was extremely uneven with deep "tuck's" and I opted to make a visual inspection from the air rather than walking the ground. The pilot made several low passes during which I saw a superior job of cleanup had been performed without any trash evident. There is a slight depression ( <1' approx) in the cellar area with what appears to be mud mounded up around it. The depression is most likely from subsidence in the cellar fill. Possibly knocking the edges into the depression would give this a natural appearing contour. Mr. Lier explained that the substance on the ground was natural and not drilling mud. I recommended that he garner a sample for determination. If the depression and the mud circumstances are approved I feel no further action is required to remediate this site. Attachments: Wolf Creek -4 air a 07 -21 -09 LG.JPG Wolf Creek -4 air b 07 -21 -09 LG.JPG Wolf Creek -4 air South -North 07 -21 -09 LG.JPG Wolf Creek -4 Cellar Area 07 -21 -09 LG.JPG 2009- 0723_Location Clearance_WolfCreek4_lg.doc ti L • ocation Clearance — Wolf Creek #4 (Ana o) Photos by AOGCC Inspector L. Grimaldi 7/23/2009 k- VV Aerial view of Wolf Creek #4 location N. t 2009 -0723 Location Clearance WolfCreek4_Ig.doc ••• • • Wolf Creek #4 surface location Slight subsidence around cellar of w ;• Wolf Creek #4 ,11 F. 'k •J '. - � 3�R'i ll.�'v '. . ;t , } 2009 -0723 Location Clearance WolfCreek4_lg.doc ( ISOTECH LABORATORIES INC www.isotechlabs.com 1308 Parkland Court Champaign, IL 61821 -1826 I 877.362 4190 217.398.3490 217.398.3493 Fax July 1, 2009 Alaska Oil & Gas Conservation Commission 333 West 7 Avenue Suite 100 Anchorage, AK 99501 Attn: Librarian To Whom It May Concern: Enclosed you will find final data (1 hard copy & 1 CD) for all of the IsoTube samples that we analyzed recently from the Wolf Creek #4 (Alaska) well. I am sending these data to you at the request of Aisha Ragas of Anadarko Petroleum Corp. If you have any questions, or if there is anything else We can do for you, please do not hesitate to contact us. Sincerely, \ CN Renee Hendrickson RE Mud Gas Project Coordinator 20C JUL 0 Enclosure CL�issi Alaska oil & CSas Anch Cons nra4 O,S - -/r r /ada (L JISOTECH� ISOTECH LABORATORIES INC www.isotechlabs.com 1308 Parkland Court Champaign, IL 61821 -1826 I 877.362.4190 217.398.3490 217.398.3493 Fax Well Summary API: 5011920002000 Wolf Creek #4 Alaska Operator: Anadarko Petroleum Corporation IsoTube® Samples July 2009 • • E E U $ ti E 6 PA 4 g U m A n W mmnmmO w E b U moimmmm o m N , m 8 la m V w m m n m m m m N m N m m N N m n N m O N w O N m _c m ;'? 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Anadarko plugged the wells and is analyzing results to determine the area's commerciality. No pipeline exists to transport gas. Anadarko is operator with 33.34% working interest in 1.9 million acres east of Umiat and just east of the National Petroleum Reserve- Alaska. Petro - Canada and BG (Alaska) E &P Inc. hold the other interests. Anadarko has previously estimated a resource of 2 -10 tcf of gas on the lands. The state has proposed to build a 90 -mile road from the Dalton Highway to Umiat on the Colville River. Exploration near Umiat dates to the 1940s. To access this article, go to: http: / /www.og j.com /articles /article_d isplay.cfm ?ARTICLE_I D= 362738 &p =7 Copyright © 2009: PennWell Corporation, Tulsa, OK; All Rights Reserved. http://www.ogj.com/articles/print screen.cfm?ARTICLE_ID=36273 8 5/21/2009 Page 1 of 3 • Maunder, Thomas E (DOA) From: Maunder, Thomas E (DOA) Sent: Wednesday, April 15, 2009 8:33 AM To: 'Coyner, Skip' Subject: RE: Wolf Creek #4 (208 -194) Skip, I hate to be a pain, but when I get to page 2, the detail is a little sparse. Your original summary had more information on the surface cement job. I do not see information regarding witness or not on the initial BOP test. No information on the Inspector present for the tag, pressure test, tag at the surface shoe. I know there is some additional work involved, but I request that you send the "greater detail" report that you sent an example of yesterday. Thanks in advance, Tom Maunder, PE AOGCC From: Coyner, Skip [mailto:Vern.Coyner @anadarko.com] Sent: Wednesday, April 15, 2009 8:25 AM To: Maunder, Thomas E (DOA) Subject: RE: Wolf Creek #4 (208 -194) OK, for Wolf Creek 4 the operations Report from Open Wells is the 2 pages attached: Skip Coyner 907 - 273 -6305 oft 907 -440 -6647 cell From: Maunder, Thomas E (DOA) [mailto:tom.maunder @alaska.gov] Sent: Wednesday, April 15, 2009 7:57 AM To: Coyner, Skip Subject: RE: Wolf Creek #4 (208 -194) The open wells report should suffice. The only issue I have seen with that format is that sometimes the cementing detail is "short" of what I prefer to see. Tom From: Coyner, Skip [ mailto :Vern.Coyner @anadarko.com] Sent: Wednesday, April 15, 2009 7:18 AM To: Maunder, Thomas E (DOA) Subject: RE: Wolf Creek #4 (208 -194) What we've submitted in the past is this version from Open Wells.. Skip Coyner 907 -273 -6305 ofc 907 -440 -6647 cell 4/22/2009 Page 2 of 3 • • From: Maunder, Thomas E (DOA) [mailto:tom.maunder @ alaska.gov] Sent: Tuesday, April 14, 2009 4:20 PM To: Coyner, Skip Subject: RE: Wolf Creek #4 (208 -194) Skip, This format would be just great. Sorry for the extra work. Tom From: Coyner, Skip [ mailto:Vem.Coyner @anadarko.com] Sent: Tuesday, April 14, 2009 3:23 PM To: Maunder, Thomas E (DOA) Subject: RE: Wolf Creek #4 (208 -194) I can make a print from "Open Wells" and delete the cost data. It'll look like the attachment. Skip Coyner 907 - 273 -6305 ofc 907 - 440 -6647 cell From: Maunder, Thomas E (DOA) [mailto:tom.maunder @alaska.gov] Sent: Tuesday, April 14, 2009 12 :57 PM To: Coyner, Skip Subject: RE: Wolf Creek #4 (208 -194) Skip, I am finalizing my review of the Wolf Creek #4 completion report. Looking at the operations summary, I see it is a compilation of the weekly messages you sent. Is there a higher level of detail available? Call and we can discuss. Thanks in advance. Tom Maunder, PE AOGCC From: Coyner, Skip [ mailto :Vern.Coyner @anadarko.com] Sent: Wednesday, April 08, 2009 10:59 AM To: Maunder, Thomas E (DOA) Subject: RE: Wolf Creek #4 (208 -194) see below: Skip Coyner 907 - 273 -6305 ofc 907- 440 -6647 cell From: Maunder, Thomas E (DOA) [mailto:tom.maunder @alaska.gov] Sent: Wednesday, April 08, 2009 9:57 AM To: Coyner, Skip Subject: Wolf Creek #4 (208 -194) 4/22/2009 Page 3 of 3 • • Skip, I am reviewing the completion report for this well and have some questions. I. Is the rig inspection listed on 2/2/09 the diverter test? Yes: diverter, accumulator, alarms, etc. 2. What are the cement yields for the surface job? Using the sacks on the 407 and the yield from the permit, I do not get the volumes given on 2/9/09. 117 sx ASL at 4.33 cf /sx = 90 bbl 139 sx AS1 at 0.93 cf /sx = 23 bbl 3. A photo of the plate was included, were any photos secured of the cutoff? The photo you have is "The Photo ". The casing was cut off deeper than planned and there was no stick up. Thanks in advance. Call or message with any questions. Tom Maunder, PE AOGCC 4/22/2009 • • TEL (907) 563-9519 ANADARKO PETROLEUM CORPORATION 3201 "C" STREET, SUITE 603 • ANCHORAGE, ALASKA 99503 Anada1'Kp Petroleum Corporation AOGCC 333 W. 7' Ave. Anchorage, AK 99501 March 25, 2009 RECEIVED Re: Anadarko Petroleum Corporation MAR 2 5 2009 Wolf Creek #4 / 208 -194 Well Completion Report Make Oil & Gas Cons. CCIMSSiOP Anchorage Mr. Maunder, Attached please find Anadarko's Well Completion Report (10 -407) for the Wolf Creek #4 which was located in the NPRA near Puddin Lake. The well was drilled, logged and plugged without test. Abandonment was completed on February 25 2009 and was witnessed by Tim Lawlor from the BLM. Included with our 10 -407 please find: wellbore diagram, operations summary, As Built plat, Survey Report and a photograph of the well marker plate. Please note that all log copies, samples, etc. have been or will be submitted by Mr. John Kamm from Anadarko Petroleum Corporation / Houston. Mr. Kamm's contact information is: Office: 832 - 636 -8460 Anadarko Petroleum 1201 Lake Robbins Drive No.: 10092 The Woodlands, TX 77380 If you have any operational questions, please direct them to Skip Coyner: 907 - 273 -6305. Sincerely, Chuck Rowe Drilling Operations Manager STATE OF ALASKA ipEcENED ALASKH IL AND GAS CONSERVATION COMMIS SON WELL COMPLETION OR RECOMPLETION REP 1 , 'r LOG la. Well Status: Oil ❑ Gas ❑ Plugged ❑ Abandoned 0 . Suspended ❑ y $ Commission 20AAC 25.105 20AAC 25.110 MAO AO � 0 m nt0 ® Exploratory 0 GINJ❑ WINJ WDSPL WAGE' Other ❑ No. of Completions: Servi Stratigraphic Test ❑ 2. Operator Name: 5. Date Comp., Susp., or 12. Permit to Drill Number: Anadarko Petroleum Corporation Aband.: 2/25/2009 208 -194 T 30 3. Address: 6. Date Spudded: 13. API Number: 3201 C Street, Ste 603, Anchorage, AK 99503 2/3/2009 • 50- 119 - 20002 -00 4a. Location of Well (Governmental Section): 7. Date TD Reached: 4, 14. Well Name and Number: Surface: 1954' FEL & 1845' FSL of Sec 9, Ti S, R6W ^ 2/18/2009 P . 1f" ` :2‘f Wolf Creek #4 • Top of Productive Horizon: 8. KB (ft above MSL): 7I ?.G. 15. Field /Pool(s): Grandstand 1991' FEL & 1806' FSL of Sec 9, T1S, R6W Ground (ft MSL): 7//•6. 'Ali L oll Total Depth: 9. Plug Back Depth(MD +TVD): Exploratory 2051' FEL & 1786' FSL of Sec 9, T1S, R6W Surface 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD + TVD): 16. Property Designation: Surface: x- 584,114 ' y- 5,618,548 Zone- 5 . 3250' 3247.5' TVD ' AA -86604 ' TPI: x- 584,077 y- 5,618,509 Zone- 5 11. SSSV Depth (MD + TVD): 17. Land Use Permit: Total Depth: x- 584,017 y- 5,618,489 Zone- 5 -2520' - 2517.5' SSTVD US Dept of the Interior: FF095310 18. Directional Survey: Yes 0 • No ❑ Inclination Svy 19. Water Depth, if Offshore: 20. Thickness of Permafrost (TVD): (Submit electronic and printed information per 20 AAC 25.050) (ft MSL) 880 ft • 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): Platform Express, Induction, GR,Sonic Scanner, CMR, FMI, MDT, SWC's ✓ 22. 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 16" 65# H -40 G/L 102' G/L 102' 24" 380 sx AS -1 6.5' 9.625" 40# L -80 G/L 1011 G/L 1011 ' 12.25" 117 sx ASL + 139 sx AS -1 6.0' 23. Open to production or injection? Yes ❑ No 0 If Yes, list each 24. TUBING RECORD interval open (MD +TVD of Top & Bottom; Perforation Size and Number): SIZE DEPTH SET (MD) PACKER SET (MD) N/A N/A 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED 26. PRODUCTION TEST Date First Production: N/A 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 - 27. CORE DATA Conventional Core(s) Acquired? Yes ❑ No 0 Sidewall Cores Acquired? Yes 0 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. • GATE CaS-D J � LS Form 10 -407 Revised 2/2007 r r ' C NTINUED ON .. lark ^ , 2 9 i"� 2-6• pp i_, z , a il 9/ -0/,' • • 28. GEOLOGIC MARKERS (List all formations and markers encountered): 29. FORMATION TESTS NAME MD TVD Well tested? r Yes " No If yes, list intervals and formations tested, briefly summarizing test results. Attach separate sheets to this form, if needed, Permafrost - Top Surface Surface and submit detailed test information per 20 AAC 25.071. Permafrost - Base 880' 880' Seabee 120' 120' Ninuluk 500' 500' Chandler 1019' 1019' Grandstand 2028' 2028' Formation at total depth: Grandstand 30. List of Attachments: Wel!bore Diagram, survey report, As Built plat, daily operations report: logs will be sent under different cover 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: S. Coyner: 907 - 273 -6305 Printed Name: Chuck Rowe Title: Drilling Operations Manager, Anadarko Petroleum Corporation Signature: At £. 7in/6 Phone: 91,7- 273— 4302 Date: 3/25/0 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 1a: Classification of Service wells: Gas Injection, Water Injection, Water - Alternating -Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI (Top of Producing Interval). Item 8: The Kelly Bushing 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 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut -in, or Other (explain). Item 27: 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 29: 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 2/2007 , . • --.7V-k,C0:47:tM1,1115410t --77-•,,,, Rii. - ,-;-,,,,: •,-* -4 :, • ,.--,-;a7k4t4.,,,,ate,,,,s:,v,A,.:73::.::::::*.N,40-1::::10-*.t.'-.A0FM.Titri,-WN.A-01:'•1 104•Walt-,..4.:4,';.." ~: •A tAit ' i g 4ti Vii FR , * MVSFA -4 :t 5 ,11 01 ; r i:g3fik*tft- ,- * 1 %.*''..-fi - raziRr:Fa , M;:%%tfcs,A,-*Vg ,- .N.AV-PRr.„:.•140',We,•,:f.;•,,tf ':' i 1:100 , ii.; ,1 0 ° Ptig.O.R - 44.15,:iikri*,... 1 Ita:;:"'''.''!oel"'''''' --'"' ',.'-',:-''''',4''''.":=4'44:iftr,reigARNrWAVAVAPt•—,,".:-eX3 :t•--f,-Ztrri:,. attlitdiait=.34:2-;;;:,...1.4,..mits, 474, gafi,:41,".+1,;;Ite.01Ft4A,Uk* Operator r FIELD NAME 1 . SPUD DATE i GL , KB ROUTE J . ANADARKO PETROLEUM CORPORATION • i - , 712 I 732 .' „ ._ .. API 1 STATE COUNTY DIVISION 5011920002 ALASKA I NORTFISLOPE INTERNATIONAL Long/Lat.: 66.36776 / -153.34826 Q-Q/SecUTownlRange: NENW / 9 1 1St 6W Footages: 734.87' FSL 538.58 FEL Welibore: WOLF CREEK 4 MW TVD 1 PBMD i PBTVO I EVENT INFORMATION: EVENT AC IVITY: DRILLING START DATE: 1/13/2009 AFE NO.: 2024448 OBJECTIVE: EXPLORATORY END DATE: 3/4/2009 OBJECTIVE 2: DATE WELL STARTED PROD.: REASON: Event End Status: RIG OPERATIONS: Begin Mobilization Rig On Location Rig Charges Rig Operation Start Finish Drilling Rig Release Rig Off Location 01/13/2009 02/03/2009 02/03/2009 ;' - & ;_,,9 . . =t fg=S . 1/31/200 7g..aigiqfpgatr-15.3.1%-fgaiggrgl,-OT:t tfAragi.titiai1161403.—fitfeslatteLlpateMItlfti.agOiti,'-'4,1kM1;40* 9' '• ' •- • • Nia 0:00 - 0:00 24.00 MIRU 01 P RUN KOOMEY LINES BETWEEN SUB & DOGHOUSE SAFETY WIRE TOP DRIVE BOLTS. INSTALL RISER ON CONDUCTOR & TEST SEAL TO 500 PSI. BRING FIRST ROW OF 9-5/8" SURFACE . . CASING INTO PIPE SHED. INSTALL KNIFE VALVE ON RISER AND 2 SECTIONS OF 12" DIVERTER LINE. BOLT 20 HYDRIL TO STARTING HEAD IN TRUCK SHOP. HOOK UP CEMENT LINE IN CELLAR. CONTNUE BERMING UP, RUNNING CABLE AND ELECTRICAL WORK, RIG WELDING. INSTALL GAS DETECTORS/ALARMS. TAKE ON WATER INTO RIG WATER TANK. TROUBLE SHOOT BOILER & STEAM SYSTEM. SORT AND INVENTORY SUBS AND HANDLING TOOLS IN PIPE SHED. 2 /1/2009 ,•..„..:Li t,. ',•:,''....:•--.:'-..:-: •• f • :'::::•••:El‘' . -: - • . INSTALLEt . ""-"; ':'...,. MD: • . . . ... _....... „..„.. „„.. ... . . , ... , .. .. .. . . : .„. „ ... . . .... .„... ... .... ,. .... .. ...„.... ... .. . . .. .. „.. .. ,. ...„.......„.„..., .„.. ..... .,... ,:. . .„ • ..: .: .:•:' fl .-, :' -I ":'•'•::::"0W 0:0 :'t k-1.1J.• • '•'-":. 01: ......,:-.:-• EV.:''=::::::': P :isi: D:I:1W DiVERTOR, WORKIN :LINE & PIRESHEMINSTALLED:PVT':: . ..... : INSTALLED „ . ... . .. - . ,,,. .. .,..„ .. . ..... ... ... ,, „.„ . . .. .. ... ..... . PROBES FOR 4OMPLSONaTALLING:2 1;r:Nsgwp03NiNpls::1: ,:::,...:,,-- :: :: - :":.;.--:: :::. ,:!, --::.:::- :::::: . -,::,,,,,,,-::-,-.-",,,::''", ,-•:::: -,'-', -':',-, '-:,.-:- •-.- ',--, .-, --- WILL LOAD MWDWOES IN PIPE SHED TOTHAMMWD stREARING oAte($ystg04.1114k,::a:E::::::: :. pktettii■iSF.10Wit#LIOHT.:itsi MORNING. MODIFY . ,::.0"::4:','„,: : ::• , . , , .,::, :::.:' , " , - ;:::::E : ::, , ! - E,;:: - ,!.::::,,,,:?::: :•i: : FLOWLINEipigumkar4p &..HOLETIL ,,;:.: !0-:::::::::. ,:.:-:,:,:: ::-.,,:'. • -:,',..:- • P14VAAI:i7.!DISC.1 Ft PITS :::: ,•.-.::-: i:: : 10 IN RW,':FINIS.H•0042-crOF.1r pivERTEFt:LIN REPLACE SUCTION DAMPENERS ON MUD PUMPS CHARGE : ' :::::,--:,---- -; ,,:- -: ': : - :,,,.:-, - - - -, • --:--,,,, :,, , - 1, " , :"::'''-:': ,,- ' - ': , ': , -:::.:::: .- :-. - ..: , 'H :::';,,: ,:::,,,,,,,-::,.:,,-;:::,,,,-,-::--,-,:,:,! ,,,,,--,:, '.:,, i •:":'': :::::H.:.:mi.::::::::::::: -:-...:, :,:. - •:::: ::,....--:::-... .• :. . :;'..: ',.••.:::::• ,•--,:.•:,..::::::-- .•••••••:::::.:•;',:,• :-.:,•!'''-::::i•.'1.;:••.::::::','::- •:,, i".:L' - i::::' , ::i: i• ':::: : : : ::g i: . : :: :, : • ' •!, :: - •:: : ' • : • '-': : -BRINa.. , 44 1. A141?:iF.4991 1, VAINE.$:470fglp: : .r,.02..pt34:::; .:. • .. : .,':::, :::: 2/2/2009 : -;: : ' " - : . -- . .. ., ... - W.:, 120 0:00 - 10:00 10.00 MIRU 01 P FINISH MODIFY RISER & FLOWLINE. WARMUP ANNULAR. PREP BEAVER SLIDE & PIPE SHED. INSTALL CATCH CAN AND DRAIN HOSES UNDER FLOOR, DRIP PANS UNDER DWKS. PRE-FUNCTION DIVERTER SYSTEM AND ACCUMULATOR. PUT ' WATER IN PITS & MIX SPUD MUD. PREPARE TO SPUD. ::::::: :::!..: : „ ::•!: r. • '.:',.!:..:::':::... ,.: ' HELD PREppgp4:-$AFFurmgoiNg:.:.,..:-.:,--::::.;:;:,:,,::::-:::::x:::g:::::::::Ig::',,,,::::- :,,,,,,,,,,,,n,,,,,,.,.. 11:00 - 12:30 1.50 MIRU 01 B P BRING WATER INTO PITS, CHECK FOR LEAKS, START MIXING SPUD MUD. PREPARE FOR DIVERT. INSPECTION i:::::!.?:i•j:.::••••::•:::',..:•-'•.:12:69-.-,:•H:-1:5:0(X•:'!::31::•.,201,".V,Mittall:::;Z,!.'•!!1,,i:01!!!!:;-.r ..B;g DIVERTER FUNCTION TEsir&AtbunnutAtok:Nno.:4:;::: ,, :.:,g :,'.:-:::::.,,..:,,,:::,::, , : i .:::.:,,E:- :.-:::: -,::::,:. ::: -:- ,i --:',:iol:::g::::1,-::; -- :,::::*_::,,:-:::,:::::•:::::.,::::,::,!.,:,:.::::;:: CAPA CITY NOBLE AOGOOfiELe)::•;:i:i:::::::-:.' 15:00 - 20:00 5.00 MIRU 01 B P CONTINUE MIXING SPUD MUD (APPROX 450 BBLS). TIGHTEN BOLTS ON TORQUE TUBE STAND-OFFS AND PREP TO PU DP. _ . . .. . „ .. „ ... . ,. ... „:„.„ „ : ,. .,......,., .. : ...„....„. ...„ , .... „ .,.. ... , ::: :-.:...... 2000 . - : 000 :,,-,", - -:: ,,,,, :MIRU:''''' - .::-' , •101:•'-':;r::::::' ,, i - B PICKUP DRILL PIPE AsAijsirANAII.V.K741ANDs PICKED wiz, 'X:::::nai:::::!:: '.:,.,.• -.:- ::::-; -: ..,,:...--.-..: .- . . . .,.:::::::::::.:::::::::„G ,::::::-::: :,:,-: : :.-;::::•--:.:::::,' , :: -- -: , - , :;.:•:::•:v:2g- - . , :.::;:=:' , :::-,-;;:::' , ':-.:::' , :1 1 ' , IiMoil!dtf lr: ,- : , .:':.::-;::::.':;':' -•-,...:,.:- ,, i':'. ,, •::::,-.- - - ... . ._ ...... ... .„.......„ . ....,.. .,, .............„...... 2/3/2009 - ,..., . , . )N17-: . figh 140 0:00 - 2:30 2.50 DRLCON 05 A P PICK UP 4" D.P. •"',,••::'''' -•:,,.':'-'''•'• . ' .• " , ' 30 :.• ;'.••' : ' :;DRLCoM"i' ,:.i :0e'' . •''':'*:: , ':'."• E,;: '•••:'P'• ., . , '::Pt)t , 7rWIS't IN ROTARY H OSE TO CLEAR MAST : •••• ,.-• ': ' • •:.--:••'• • .-.--•-' 330 - 500 1.50 DRLCON 05 P PICK UP H W DRILL PIPE • ..: f' :••••'. .:- 50.":::' PRPSPD 06 - :••• ,5 " - :.-•POP'INSTAI:14::MQUSE HciLE' : :-:•::: -:-:::.,:: ,• :-.....,:•• -:-. . - -.,:,.:•,., 5:30 - 6:00 0.50 PRPSPD 01 0 P BLOW DOWN MUD LINES • . 4/14/2009 3:13:49PM • • LT 6:00 - 7:00 1.00 DRLCON 05 A P PICK UP BHA TAGGED ICE © 70% • B Z flLW PUMP SUCTION LINES REPAiR FILL UP LiNE& EPAIR. „, • •-,':?:;„:11:111:::00.1.WP,AOKIND.4A .,, :"„•• 16:30 - 17:30 1.60 • DRLCON . 64 • A P FILLHOLE W/ WATER. TEST MUD LINES TO 2500 P6I. 17 30 19 00 I 50 DRLCON 05 A P cLEAUT CONDUCTOR FROM 70i'1074 , ":11_ 19:00 - 1930 6.50 DRLCON 06 P REPAIR BLOWER MOTOR CABLE ON TD. fl,(#44::.•::.1.,:::El:90:',-..:..1)K,Lotiggabi,lig,i,Aig::::::::aiii.:6.6•,.''CLEAKOP...1Z001POPTOWIftPliiill41:',8q4000E1A, 399 PSL ' COLD THIPK MUD puit±i0::$13))6(t010/00.0 ••• • - • DRLCON 06 P BLOWDOWN TD. THAW FROZEN LINE BETWEEN PITS. 22 00 OO b11tON A oiittoi4 If • • tiiiiWtO '""'"Ofk" . 2.. FR .120 ,, EVS/tIOLE .• • • : 2/4/2009 :. • • . • 7 , 2,675 Mil 401 • 0:00 - 1:30 , 1.50 DRLSUR 02 B P DRILLED FROM 140' TO 160' g';'•:::•• 30 •- -•:'2:00 •: :7 WtitabkNiUrikiiii0modm ' - 3:00 1.00 DRLSUR 05 A P POH, HOLE FILL. OK 3:30 - 7:30 4.00 DRLSUR 05 A P PICK UP NEW BHA & RIH, HAD 20' FILL 8:00 - 15:00 7.00 DRLSUR 02 A P DRILLING FROM 160 TO 296', PU 6-1/4 DC. 130 RPM, 188 SPM, 530 GPM, 1200 PSI, 15-20 WOB. "i 5 DkiVt'VetDADDE BOON 15:30 - 18:30 300 DRLSUR 02 A P DRILL FROM 296' TO 373, PU DC. 150 RPM, 195 SPM, 550 GPM, 1500 PSI, 20-25 WOB. 1 LPA'' IN DUETO OVERFLOW tRIPhitP.PUIN9§."()ProMAM•tlY1- WASHER )!..±0PRp$4Q PAt:c0NkOf1.100;„00j140p199KiVimomphvgi% ; MATSBWEEN PITS AND ROCK WASHER. NON REPORTABL SPILLPEREHS ADV1$E.b DRILLING SUPT RESUMED CIRCULAI1NGSLOW 0.100100004.0."11A) upat, 20:30 - 21:30 1.00 DRLSUR 02 A P DRILL F/ 373' TO 399, PU DC. 150 RPIVI, 212 SPM, 600 GPM, 1800 PSI, 20 WOB. , • 51'Nti::::aigta PU0001414;009VN TRASH AND .RODKOANDER SEATS WORKONOUMP:Si 01R681.44:18iNVORICketge..... 22:00 - 22:30 0.50 DRLSUR 02 A P DRILL F! 399' TO 401'. 300 GPM W/ PUMP 2, 120 RPM, 5 WOB. PUMP 2 PICKING UP TRASH UNDER SEATS. 22 30 o� I 50 rttRILtLiit.;"-•••67 ott0UMOUttONs - 0LEANitSUT01Airigeti00$E6WAk. ,. .„ . _ . . &WO . 2/6/2009 . , . ."'••• MQ 641 0:00 - 4:00 4.00 DRLSUR 07 B Z WORK ON PUMPS, CLEAN OUT SUCTIONS, SUCTION VALVES, LINES. CIRC SLOW & WORK PIPE ......................................................................... 4:30 - 7:00 2.50 DRLSUR 07 B Z POH TO CONTINUE WORKING ON PUMPS &PITS. t: 3 IVEMUMP kivIOUK445,K01: , ENPSIERVI4APSVP330#0 :.0(1610,10000ERs HAD FAILED 9 - 16:36 • 1.00 DRLSUR 07 B Z RIH TO SHOE, CLEANING SUCTION PIT AND SUCTION LINES. l9*3f 3 2 00 DRLSOR ol z PUMP CLEAWUD THRL PJMS TEST PUMPS ON STANDPIPE CHOKE ;;< DOLLAR SEDRBBERAND pLC CHUNKS ON PULSAR. 12:30 - 13:30 1.00 DRLSUR 07 B Z BLOWDOWN TD & UNES. ................... • : • • ::: miN „A:4 15:00 - 20:00 5.00 DRLSUR 02 A P DRILL FROM 401' TO 545', PU DC. 150 RPM, 20-25 WOB, 600 GPM, 2000 PSI. 2O 00 20:30' • ERVtPERIG CHECKTOP DRIVE 20:30 - 21:30 1.00 DRLSUR 05 A P POH TO 484' TO PU JARS, RIH. 000 2 So DRL$ 02 A p DILURO : . • 2/6/2009 . . I S 169, eC: 5.3 MD 1,027 0:00 - 2:30 2.50 DRLSUR 02 A P DRILL FROM 641' TO 703'. 155 RPM, 25 WOB, 620 GPM, 2000 PSL 4/14/2009 3:13:49PM • : • OO - • 6:00 - 7:00 1.00 DRLCON 05 A P PICK UP BHA TAGGED ICE 70'. 700 16 95O ORL'GON B fii4Wi.tUMP SWILPRONES.' f.'.tBPAART11-1- ................................................................... i‘epiott,0340011 ptitto.ifftootAct;ogtom.EFt. 16:30 - 17:30 1.00 DRLCON 04 A P FILL HOLE W/ WATER. TEST MUD LINES TO 2500 PSI. 0.Prett:VotiTtoOtiotdit.fRotol.o7irpmfi*diedittilliK 19:00 - 19:30 0.50 DRLCON 06 P REPAIR BLOWER MOTORaABLE ON TD. 13D io I 00 OLOOK1'44:::0tgifg*IirgigiiarcixAistotfropppuctoo$00m7* P$0.3i'fRigt 3211 DUE TO - : 20:30 - 22:00 1.50 DRLCON 06 P BLOWDOWN TD. THAW FROZEN LINE BETWEEN PITS. bM 120 TO1,1MX10:aeM.., 400•emin;::,. 2/4/2009 • .. hila 401 0:00 - 1:30 , 1.50 DRLSUR 02 B P DRILLED FROM 140' TO 160' I 1 30 -- . . 2 . 0t0 :0 ''P'450Ot ' 2:00 - 3:00 1.00 DRLSUR 05 A P POH, FILL OK 3:30 - 7:30 4.00 DRLSUR 05 A . PICK UP NEW BHA & RIH, HAD 20 FILL 8:00 - 15:00 7.00 DRLSUR 02 A P DRILLING FROM 160 TO 298% PU 6-1/4" DC. 130 RPM, 188 SPM, 530 GPM, 1200 PSI, 15-20 WOB. I 5 . 30 0 50 DRLSIJR 06 A P SERVCTOP DRicititiEttiltidUE BOWB'ON TD ....................... 15:30 - 18:30 3.00 DRLSUR 02 A P DRILL FROM 2913' TO 373', PU DC. 150 RPM, 195 SPM, 550 GPM, 1500 PSI, 20-25 WOB. IN,0170,0jutfola L .>.3 SPILL PEItHS ADVI8ED DRillING SUPT RESUMED vv...4qM08•14111:1 • .• 6 1 iitaitAiNd.:tiLOW•Ai4MORIONG 0itt.0.19NOtLEAl4. UP 20:30 - 21:30 1.00 DRLSUR 02 A P DRILL F1373' TO 399, PU DC. 150 RPM, 212 SPM, 600 GPM, 1800 PSI, 20 WOB. PUMP43:4400WN W/ TRASH AND .139cKaiPN.1*.I1 _ : . ' WORK ON PUMPS & CIRC SLOW WORI( PPE • - 2 2:30 0.50 DRLSUR 02 A P DRILL F! 399' TO 46V. 300 GPM W/ PUMP 2, 120 RPM, 5 WOB. PUMP 2 PICKING UP TRASH UNDER SEATS. - - CLEAWOUT ,.•, • , , , .•., • 2/5/2009 • 71 • " :en! PM. 641 0:00 - 4:00 4.00 DRLSUR 07 B Z WORK ON PUMPS, CLEAN OUT SUCTIONS, SUCTION VALVES, 5 LINES. CIRC SLOW & WORK PIPE. 4:30 - 7:00 2.50 DRLSUR 07 B Z POH TO CONTINUE WORKING ON PUMPS & PITS. rolAsmANitta.ALL 3mpappws.:...FmtpA.mALLAmpwaxedi ENpswecwp: spat (mcp:010 9:30 - 10:30 1.00 DRLSUR 07 B Z RtH TO SHOE, CLEANING SUCTION PIT AND SUCTION LINES. ptioikaskik#U0: STANDPIPEZ pHokkANtileito.Kmvvp.To.441191 r . SIZEuRUBBEkkitt PULS ' tivit3 ''.'1 12:30 - 13:30 1.00 DRLSUR 07 B Z BLOWDOWN TD & LINES. 15:00 - 20:00 5.00 DRLSUR 02 A P DRILL FROM 401' TO 545', PU DC. 150 RPM, .2625 ' vioB,icto GPM, 2000 PSI. 20:30 - 21:30 1.00 DRLSUR 05 A P POH TO 484' TO PU JARS, Rm. 000 250 DRLSUR 02 'A p DRILl. FP 545 TO 64 . AND DRILLINGAHEAD 04 150 RPM • 216/2009 S 169, . . MI 1,027 • 0:00 - 2:30 2.50 DRLSUR 02 A P DRILL FROM 641' TO 703'. 155 RPM, 25 WOB, 620 GPM, 2000 PSL 4114/2009 3:13:49PM • _ E • • ! ,f 2" ff l k .f � ka '. G-z t t ..�.aS M3 � � .,0'1-1.1.i44)*''' ' . } 7 f k f i SSW • i I � " 1 £ 1550 DRLSUR £ E £ 10 02 3 P [RILL FROM. TO,:G27 .. 18 3 19 00 0 b0 DRLSUR 09 0 P PUMP UP SURVEY 1 J 00: S93t ' 0. " DRLSUR 07 ! Z:' k `:' £ UBLESHOOT T OP { 1 VE ; c . ;, : A .. . . . ,.. .:: xer^..: ;x :.. . , ,... r," . .. .. 19 30 21. 30 2 06 DRL 04 G P CIRC. HI VIS PILL & C CALIPER 21 .30 22 3 ' 100 DRL ' 05 B P . O9 i H L : fx .:.: : . 22:30 0:00 1.50 DRLSUR 05 P BACKREAM TO 885', TIGHT SPOT AT 940 & 905 REAM STAND 2X, THEN PULL UP FO AND STAND BACK 2/7/2009 D: 1,02 0 00 6 00 , i� �D0 1]1 SOR 05 E P' x BA CKREAM OUT R SHQI TRIP TO 5O ' RAM EA S BACK 0011 TI ESN BTRAIC PULL ANt3 STAND BA C K IA $T 3 $ TDS BA 4N0 SEt BACIF : ,TIC HT S 'pT$ �� ,r £ `� GENERALL1f A 3 3: 6 ' APAR AP T BF, Df AGGING j •. M UD BALL l H0 BLOINDOWN 1 ?S E ANI ? �( 1V [ * PREP TO RU x; , :..., i . 6 00 7 00 1 00 DR LSUR 05 E P RIH T O 1027 NO FILL ....:w: .: , .:: E .. e L' iti 7 CEO 83 0 ` k 1 DRLSUR 05 F' IR C BOTTOMS UP: t WICE $RAK ERS C LEAN . <. . ' I _ 8:30 14:00 5.50 DRLSUR 05 F X • POH TO 51 2 UNA BLE TO WORK THRU SA ND & CLA RING. BACK REAM TO 352'. FOUND A WASH OUT BETWEEN TOP DC & SEC DC. ? 9 00 ; ; > 2 16'b0 Rl SUR 05 F u <. ..: K R FROM 352 TO 13 5 9600 - 18:3 2.50 DRLSUR 05' F X RIH TO 522'. LD 2 STEEL D WITh W ASH OUT FLOW CHECK, STATIC. M U FIRST STD H WDP. x 183 : 0 5 0 r DRLSUR 04 � ' WA &REAM CIRCULAT - - — . ' I AN 230 . SPM, P M, . ER PSI 50 RPM TGNIFICAN SE TN �1 � I k _ $ a r ✓� RVICE:TOP DRIV ( 19:00 21 :00 2. DRLSUR 03 E X WASH & R BACK TO BOTTOM AT 102T,130 S PM , 370 GPM, 700 PSI 50 RPM M AYBE 10 OF S FILL. 2100' 22330 <1 50 DRLSUR 04 G 3 LATE "HOLE CLEAN FI OM BOTI M TH PUMP B YISCSWE EPAFQUNCIPLUS A ' FULL t r C IffCU 23 PM, 6 5 600 A r 0 S 0 GP 2 PS REAMING RPM <I�A .A SMALL INCREASE OF 91 "T0314�: RECTA NGULAI7" ROGKus FQLOWED BYX 1VIUD BALD AN ©SOFT IMitJD 3 £ X%{ STONE =lP BATE D WITH ANOTHER 2b BSL HI-VISC SW EEP £ ` I £ HAD'A I '.'"i ED REA SI�. IN FFULL CIRCU CUTTIN G S II'WITH THE SECOND r i' i . � RC A . LA T I O N AFTE THAT SWE .SWEEP OUT LEAN- 12 U NITS MAX IMUM G AT R,St B atrc Ms 22:30 0:00 1.50 DRLSUR 05 B P FLOW CHECK, STATIC. SLOWDOWN TO D POH ON ELEVATORS. FRO 1027' UP TO 518' SETTING (AT JARS), AT MIDNIGHT. T OF 510, B, SAW NO SLIGHT OVERPULL PICKED O F 2K -7K ROUGHLY AT THE CE OK. T OOL JOINT ON EACH STAND. HOL TAKING CORRECT FILL, SWABBING. UP 2/8/2009 ',7:6.'..... D r °_ 4 1,027 ! 1i Q(I . 500 5 0 DRLSUR 0 B P CONTNUE POH ON ,.EVATORS FRO�II TO SURFACE 2ND ` ' f STAB AT., -•37 • A BO V. BIT WA BALLED UP:... H CUTTINGSAN[1 t , ` ` , , } t x CL A Y t � L D B (VD HOLE T OOK PR FI B i X 1 1 11 :11::.:e.::: : ::;:.::::::::::::::: . , .y '�. :: ' :,€.. :. �. . . . .. : B�It:OYCRV/'11. .,.. 2a2] �: :. ... :,. ‘5:-- 00 5:30 0 50 DRLSUR 06 A P SERVICE RIG CLEAR FLOOR A P I''JSM. R17 SCHLU TO R UN.LOGS R UN Q' 5 =16 SU 08 " : .. k TC LB •�TI4 A PER ON -SITE 1ST, FRO 6 i R a . : . : o- r > : , ::.. :1 : u : ::.::. : c .. -- CLEAR TO PIPE OF E-LINE TOOLS & BHA BRING IN LONG 17 00 17.30 050 ? RR�R 116 An SE T wk.:. & RIG, $TART. CHANG1l 0HUMP LINE • J :: 3 £ ..;,_. £. FROM 6 , i O �Fa ... r:. , ` £ :s::: "..>: ... .. , : ' 17:30 - 20:00 2.50 DRLS 11 A P RU GBR TO RU SURF CASING INSTAL LONG BAILS. RU TONGS & ELEVATORS. RU SAF CLAMP. PREP CELLAR LINES F OR CE M E NT C ONTINUE C HANGI N G PUM LINERS. 20 0{1 0 OQ / Li DRLSUR 11 S R P JSM IN DOGH E W T HAIT R 9 6/B, 40#, L - 8 0 ; � 2k t3tC SURF C $1NCi SHOE PLUS fJOI (2t " P FILL PIPE AND CHECK FLOAT,S CO NTIN U Ea R CAS M , RUN A I 5 a� 2/9/2009 .. ^:.. t. : : : • 1.0 7 0:00 - 7:00 7.00 DRLSUR 11 B P CONTINUE RUNNING 9- 518 ". 40#. L-80. BTC S RFACE CASIL1Q. MU VETCO GRAY FLUTED &PORTED MANDREL CASING TOTAL 24 FU HANGER MU LANDING JOINT. RAN 25 JOINTS LL t JTSAND1- 22'PUPJT. I 4/14/2009 3:13:49PM 1 5 z • 1022;5 . ' • 7:00 - 16:30 9.50 DRLSUR 04 E P LAND HANGER, BREAK CIRCULATION. LANDED SHOE DEPTH 1011 MD / TVD. 75K# PU,42K# SO. RECIPROCATE PIPE ^10' STROKES, CIRCULATE TO CONDITION MUD AND HOLE FOR CEMENTING CASING. 65 SPM, 4.4 BPM, 183 GPM, 130 PSI. PREPARE OUTSIDE MUD STORAGE TANKS - THAW & CHECK STEAM COILS, REPAIR MANIA/AY HATCH GASKETS 2 X 500 BBL & 1 X 400 BBL. : 17 - 18:00 1.00 DRLSUR 16 A Z INSTALL CEMENT HEAD. TEST LINES, NO GO , THAW FROZEN TEE AT CEMENT STANDPIPE, THAW CEMENTER LINE • 5 BBLS MUDPUH if E§it460_ ;.: PROPEOTToMipu MIX & P114I :ERIA10 PPGASIM. 0 tWtt940011*LI'+4:000,1411'.. 1, 131:1)POI3AM:00,400 PSI 5O�P1 SD DROP cEmENtEtiltPLACE suruipED1L0 f;14..„PZFO 160Q F1-94:17.0Mgto::::POT AFFRW,40 BBL TO 45 :10.30RIMOOLOPRENT RETUF.0(..._t tbiajOACE !Hi5rttiol.orruFtNs: _WOHOVT • 22 - 22:30 0.50 DRLSUR 15 A P BLOWDOWN LINES. RD CEMENT HEAD. • • CWIt#110;#COCR. • • GE ELEVATORS. PU JT OF DP, FLUSH OUT DIVERTER STACK. 2/10/2009 , . _ M_EL 1,027 6 otitimtdopmntilkLS112,':' DivERTERAT4610"..NCblVtititle'ir' 6:00 - 13:00 7.00 DRLSUR 13 A P INSTALL TEST WELLHEAD to 3000pst ,0pz.1:::::11fp ND &:REOf0ENT,8t S TACK SO . tiLFAR`Opotok:icLEANN:037:AANp MIXING ¶? MVD1ANDS AVAILABLE 2/11/2009 '!F-• • : • • MD: 1,027 0:00 - 17:00 17.00 DRLSUR 13 A P NIPPLE UP BOPS, KILL LINE, CHOKE LINE, RISER, ADD ON TO RISER. HOOK UP ACCUMULATOR FUNCTION TEST BOPE, WORK ON TEST PUMP CONTROLS, PREP TO TEST. 'DR.SUR 13 A P PJSM ON - SOP TEST MLUDARTVALVE & Tak7tilitS7101141V:"Sz:'-: 17:30 - • 0:00 6.50 DRLSUR 13 C P TEST BOPE TO 250.1 ,17,1100 (2500 PSI ANNULAR.), 10 MINUTES EACH TEST. UPPER PIPE RAMS, TOP DRIVE !BOP, TOP DRIVE IBOP, LOWER KELLY VALVE, FULL-OPEN FLOOR SAFETY VALVE, CHOKE MANIFOLD VALVES, MANUAL & HYDRAULIC CHOKES, CHOKE AND KILL LINE VALVES & HCR'S. LOW PRESSURE TEST ON ANNULAR AT MIDNIGHT. DART VALVE LEAKED, WILL SWAP AND RE-TEST SAME TIM LAWLOR, BLM FIELD INSPECTOR WITNESSING TESTS. 2/12/2009 • •.. . .7. MD: 1,027 DR LSUR NTINUE TES BdE TEST ANNULAR T0250 PSI LOW / : ,.. m gcActiT . , : gs:r.,. 10 miNmOt9 bcpymposvgkg4F fOK T IM LAWLOW:BLII/Ifla.OINSPECTOR WITNESSEOTEST?a . % �3CWAIVEDWITNESSIPG VV - 6:30 1.00 DRLSUR 05 A P FINISH RD AND BLOWDOWN CHOKE MANIFOLD & KILL LINE; INSTALL WEAR RING INSTALL KATCH KAN UNDER RIG FLOOR. •2 ::::1.4/4"T - DC UNLOAD.fg -SHED 7:30 - 11:00 3.50 DRLSUR 05 A P RU TO PU DR PU & STAND BACK 48 JTS 4" DP, STRAP & DRIFT. TESCO TOP DRIVE ELECTRONICS CUT-OFF ON LAST STAND. r 11 00 1230 jV 50 . DRAG BHA COMPONENTS•TpRIGV410FV!.LINE UPBHNTOOtS::i:4 IN SHEOTORLP:igt.OWDOWNO.KEOTISER.TR9P 12:30 - 13:30 1.00 DRLSUR 07 B Z ELECTRICIAN & MECHANIC TROUBLE SHOOTING TOP DRIVE... ••40 O 050 DRLSUR """'"' 14:00 - 0:00 10.00 DRLSUR 07 B Z TROUBLE SHOOTING TOP DRIVE, DOYON CONSULTING VIA PHONE WITH TESCO, ETC. SLIP & CUT DRILLING LINE & SERVICE DRAWWORKS DURING SAME. 2/13/2009 . • • 1'; 27: fat 1,027 • 4/14/2009 3:13:49PM • • • tq?2'Xf 0:00 - 7:30 7.50 DRLSUR 07 B Z TROUBLE SHOOT TOP DRIVE, TESCO HAND IN ROUTE, POWER UNIT OFF ARTIG WOLF RIG ON ROLLIGON, TI-IS MORNING. CLEAN UP AROUND RIG, CHANGE OUT #2 BOILER FEED PUMP, RU CELLAR PUMP WHILE WAITING FOR PARTS AND TESCO HAND. - 1530 5.00 DRLSUR 04 H Z BREAK CIRCULATION. CIRCULATE TO WARM UP WE , 130 GPM, 65 PSL ROTATE STRING PERIODICALLY WITH ROTARY TABLE. TEST PUMP ATTMT TO TESTCAING WITH RIG FJMP PIPE LiGHT • BLEEP:OFR/MPSURE, WILLIMICASING,Wgken:::0::,: DRLSUR 04 H Z BREAK CIRCUI_ATION; PUMP'10 BBL VISCOUS SPACER, FOLLOWED BY NEW MUD & DISPLACE SPUD MUD FROM CASING, 210 GPM, 175 PSL 19 - 20;30 1.50 DRLSUR 05 F Z POHINITH OPEN ENDED DP. CLEAR FLOOR. RU TO PU BHA. TESCO HAND ON RIG -20:00 HRS. ROLLIGON WITH POWER PACK FROM ARCTIC WOLF RIG ARRIVED LATE THIS AFTERNOON. P PU - I:IA4'01041yr 4406:44oTbLoAt40aisTAI%.:'$0,4ip.i TOOLS MU 84/4 BIT 4 TEST PUMP SATS CLEAMDITEST RUNRUMR 2 - 23:30 1.00 DRLSUR 07 B Z TESCO HAND REPAIRED TOP DRIVE, REPLACED CPU WITH ONE FROM POWER UNIT FROM ARCTIC WOLF RIG. TESCO CHECKED OUT CONTROLS, READY TO RUN. SERVICE TOP DRIVE, ADJUST GRABS. ..„ ........... ....... .... 2/14/2009 • . . . hda. 1,260 0:00 - 5:30 5.50 DRLSUR 05 A P CONTINUE PU 8-3/4" BHA. RIH ON SDC & HWDp TO 924. I x - : 1 • 6:30 - 8:30 2.00 DRLSUR 11 C P RU & CIRCULATE THROUGH TEST PUMP, RU TO TEST CAS 8 30 IQ $0 _ DLSUR t1 P TEST CAS114G TO 1500 PSI . ' b": — 10:30 - 15:00 4.50 DRLSUR 02 F P DRILL OUT PLUGS, FLOAT COLLAR, CEMENT, AND FLOAT SHOE AT 1011'. GOOD CEMENT IN FLOAT TRACK. CLEAN OUT RAT HOLE TO 1027 MD, TD OF 12-1/e HOLE. 7 00 20'014E:lif4OLEIO104 .............. 4144i kJ.AgliEitOCINII 3 gtiegiItaiTiiijA4kltildgt4OTAMOYA- I DK.BLAkNPPggn?Pk"': 4t i 4 M ' ''':'" ° "' gm°4 17:00 f 466 3k646 A 1 P PULL INTO SHOE RU FOR FORMATION TEST. TEST FORMATION WITH TEST PUMP AT 0.25 BPM, FORMATION LEAK-OFF/BREAKDOWN AT 830 PSI WITH 8.8 PPG MUD FOR 24.6 PPG EMW LEAK-OFF AT SHOE AT 1011' MD / TVD. RD TEST & BLOWDOWN LINES. MU TD & GET SLOW PUMP RATES. FLOW CHECK, STATIC. 19 : 0( Y:• •• ed:f6n , •.":1AritiOD::: : i:1: • "i: : 08013.0A11100.1$1,4 , ,:ti:;:::: , :c:!;?, ,, ri : 41!:9,,R1-ALW17..::tip!,..F, • • .,•• • •••..• • . ••• 2/15/2009 , .• mix 2,125 0:00 - 13:30 13.50 DRLPRO 02 D P CREW CHANGE- RECORD SLOW PUMP RATES- FLOW CHECK, STATIC. CONTINUE DRILLING FROM 1260' TO 1870'. 8K-12K WOB, 100 RPM + -150 MOTOR RPM, 500- 540 GPM, 1400 -1800 PSL MULTIPLE GAS PEAKS IN 200 UNIT TO 317 UNITS RANGE, BACKGROUND 25 - 50 UNITS. 14:00 - 18:30 4.50 DRLPRO 02 D P DRILL FROM 1870' TO 2125'. 10K-12K WOB, 120 RPM + 155 MOTOR RPM, 540 GPM, 1800 -1900 PSL GAS PEAKS IN 230 UNIT TO 500 UNITS RANGE, MAX GAS PEAK 837 UNITS AT 2072', BACKGROUND 50 UNITS. , BEiL A0CLEANHOLE L 1830 1900 050 DRLPRO 04 G / ... • • 19:00 - 22:00 3.00 DRLPRO 05 E P SHORT TRIP OUT INTO SHOE TO 989', PUMP OUT AS A PRECAUTION,290 GPM, 650 PSI, NO TIGHT SPOTS, HOLE TOOK • CORRECT FILL FLOW CHECK, STATIC ..... ...... 201Y.:i:W;11100:im050:4: 9F.Mita09g2A:::::1128F4r2ft: • 4/14/2009 3:13:49PM '0) TOPORILCPLOW CHECK ........................................................... .. . . .. ... . , 174T4jDNIGHT .... 2/16/2009 . • • : MIX 2,892 0 - 1:00 1.00 DRLPRO 05 E P CONTINUE RIH, WAS LAST 60 TO BOTTOM AT 2125'. CBU. ...... ''?#: 00*.f A55.';'. • GPR/04900 PSLLESS EREQUENZGASpr,ms 12:00 - 20:30 8.50 DRLPRO 02 1 P DRILL FROM 2591' TO 2769. 10K-25K WOB, 80-90 RPM + 155 MOTOR RPM, 540 GPM, 1950 PSI. GAS PEAKS 99 UNITS TO 126 UNITS, BACKGROUND 10 - 35 UNITS. 2OO . 21 00 G50 DRLPRO o6M-q"rAmx-' .................... 21:60 - 0:00 3.00 DRLPRO 02 B P DRILL FROM 2761' TO 2892, AND DRILLING AHEAD. 10K-20K WOB, 90-100 RPM + 155 MOTOR RPM, 540 GPM, 1950 PSL GAS PEAK 83 UNITS, BACKGROUND 15 - 30 UNITS. 2/17/2009 J.. 5 ma 3,250 86140 - 0.0;••5400PKi1'ogapsc,'.060)sog000llpAS:26t:50 . 0Ekt 194 UNITS 10:30 - 11:30 1.00 DRLPRO 04 C P CIRCULATE HOLE CLEAN, WASH & REAM, 540 GPM, 1800 PSI. 1f 30 &O 2 50 DL?q E7 :P » HORTTRIPOtJT Toge1vilpcA#16WY PUM OLT25 „-: 14:00 - 14:30 0.50 DRLPRO 05 E P CHECK WELL FOR FLOW, STATIC. SLOWDOWN To. , DE0)$104:WDE BXqq0:LOprt0,01ibpg • T O PERIgIT...DEPTHoES250" Eirizegimg.46, • ••,• 16:00 - 18:00 2.00 DRLPRO 02 B P DRILL FROM 3165' TO 3250' MD. 20K-25K WOB, 80 RPM + 155 MOTOR RPM, 540 GPM, 2000 PSI. BACKGROUND GAS 25 UNITS, MAX GAS PEAK 450 UNITS. I 8 00 - 20 00 2 00 DRLPRO 4 C F CBLtPIRJLATE HI-VISG SWEEP AROUND W1T SOME 121214:013:::: .. ".:M:001.g0WPAN,O..W.W051:100REAP..WP:91 7rih .**OtP 0 61*: & REAM ' 1900 PSI 20:00 - 20:30 0.50 DRLPRO 05 B P SLOWDOWN TD. FLOW CHECK, STATIC. koteitAt0600:x.m) 2/18/2009 H .""! . : MIX 3,250 0:00 - 5:30 5.50 DRLPRO 05 B P POH FOR LOGS. PULL ON ELEVATORS, NO TIGHT SPOTS, HOLE TOOK PROPER FILL V3040;' . ..001litiggrfRiltPikd 7:00 - 7:30 0.50 DRLPRO 05 B P CLEAN & CLEAR RIG FLOOR RU.sCHLINSF_RGEk5441SteEpg.:Loddlif4NOCC:: * • 20:00 - 0:00 4.00 DRLPRO 08 A P PU LOGGING TOOLS. INSTALL SOURCES. RUN PLATFORM EXPRESS + CMR + 6 STATIONS (PLANNED STATIONS). RM 3,250 FORTigaggia:. 7:00 - 13:30 8.50 DRLPRO 08 A P PU SONIC FMI TOOLS. RIH AND LOG. POH L/D TOOLS. ................ .:::tiASI:00146kiikt5W I 5:00 - DRLPRO 13 C P RU TO TEST BOPE. ggi4dit:'!;:!:11:0•1303$6IfiXer&WOM:!::6i§i:O.iiciifi PULL. WEAROciaitNp 1 16 - 19:00 3.00 DRLPRO 13 C P FILL STACK WITH WATER AND MAKE FULL BODY TEST TO 3000PSL WAIT ON AOGCC REP TO WITNESS BOPE TESTING ... 10.:90):;g I .................................................. 30.P:0LP§111401.. .- r PERFORM ACCVm04#0RP WiTNE 1 2/20/2009 hal 3,250 0:00 - 1:00 1.00 DRLPRO 13 C P PULL TEST JT. TEST BLIND RAMS TO 250PSI110 MIN 3000PSI 10MIN. 1 00 ... ...... 204:1181:::,:',•014064ii:ORLPROgia13 CHOKE MANIFOLDCLSEANJLUS'YALVE 2:60 - 1.56 DRLPRO 08 . A • P • RU SLB LOGGING EQUIPMENT. . . . 4/14/2009 3:13:49PM 1 .1 . .5'::g,'V:: . ''' - ..•':-.VANarief.ZE:'::-.'::3.:.;'..1,Ef.--..4.,.:17.1i:::-tx5eR,..:. ,,:...,mttl:si:,..:,.,:.,:i,i...5,;:.„-,;,,::...,-:,,vj.11.1-0,6=fg.t...•iiii-,,?&I!!,:i-B • vok5:;::::::::::,..:::::,::wi:::r::f)Ft:::7F1Pkttt:tgmPO:;::J:::pRLpFp.,::::ki::-:pog:ii:::tAAaig:;.N:ki:;:Z:.R111 TQAOTTOM. WARROTTOOLsATTTTAKINAit,:: • : • Avtim::!:! - . , : ,, :: ,,, , ,, ::: , ..: , :,:::::::::::mt::•:::::iii:;:mi. , :#4.::KPRESRESiiiioRKiNGAJP.Holtiticl1/41VAmPLEIWOPIONG: ..: . . • -n:::6,:fm.;::::,.:4::::$:::.::.:::...:E•1. ' . DQVVNH.Ot;e:igii::::::;- . - -4..ttea.:.: ' il:*40:10:•:: . '.'1'..:::1::a.a.t.gion:::::::E:,::,:. • ..... ., . . 2/21/2009 • . - : -: ';"- ''..-.-.:•,:f :: : ,' •1 : !-..::" - • -... • :"• ;'.'' ' '' ' ''• :--;_;: -.'::...: :-.: .7. .8;.....•••• All 3,250 0:00 - 6:00 6.00 DRLPRO 08 A P COMPLETE LOGGING WITH MDT TOOLS (RUN #4). POH • T 415;:ig;:3i,i,ff:•!::•••5 - .0()':1: . :1: , Ri$:001•!••i:0,•,:•,!!1:iffialt i LIVRtg '.08 ligi.AMICIMIRMu_kOtAkil1Do:wig1.olligol F4016:1,1231 • ... ...... ...... 6:06 - 19:30 11.50 DRLPRO 08 A P RIH CUT 52 CORES. POH 19.30.!:::.'' 20 00 : :1:11!::: , 0 :.*:::::o:i,:!:p00 :'02 : ; " . ..k;;;;;;;:; ; ;;;Pg7I1 WREgg ,00014000:,00,40* 20:00 - 0:00 4.00 DRLPRO 08 A P • RIH CONTINUE CUTTING IDE WALL CORES. 2 / 2 2 / 2 0 0 9 • - • . : - :: .'.... .•:.L• . ' • • • • • , . : . • i 250 Q:; ';'. :::' - n 3, -• -. • c941:1:45:t 0 0 Aigi::::6 .06::::.::: iggi.N,1,i;.: Folitmlitgir:RoH:::. 6:105 - 9:00 3.00 DRLPRO 08 A P UD SIDEWALL CORES AND TOOLS. CUT 56 RECOVERED 27 aittli:2;.`;:::::::1:::#314t SAWIEWESOIRL.PRO ::••A:Itiefi:iltilt”.*:::::::•PAiit itoso':pERefittorSi$i* ii'#4,000No:tard.:ft::#0ib,:::.. liZli;::::' .: '1: 'E''''']'1'iZlit41!4'iliSI::!%,_11:::::r:$0:EWt \::-'.: iz:ou - 17:06 bluo DR 08 A P RIH AND CORE. POH 3-i:':::::::!'''n:t's1:::}•::::::g:'•••••::5':':.V.7;.g.Q.::::::'ig::i$0.0:M:?irf.ilo.1:!::::::I::Itjftt;PlttW:'.':tki.1:i'1.:'::::X:EttiNiiigii::::W:;::::i:::,:tPj.piikt':tht:f.i:P.:gktUsot.f.dtiktt;'RADIOSttENcE coOttikNitct::::61: 3i:11:Lii:iiltiiiiii;;.'1::.,:::i: F" .•-• '•:::::::111:31.: 18 - 19:00 1.00 DRLPRO 08 A P RD SLB LOGGING EQUIPMENT f; i p..90,:::.,. 0 00 .4:::::::::::::•;$••:00411M•bittftt0%:.' C P tD MUD MbitiFt:':Pitli'wit-ifitdbAND.HWEPIJO 2/23/2009 ;:.:."....:: ..a.;:•;$:.:;;S:23.'.. i' . :-' •;.".ENCI. I r11, Fi kla 3250 0 - 6:30 6.50 ABAND 05 A P pu PORTED CEMENT STINGER. TIH WITH 40 STDS DP FROM • DERRICK. PU 22JTS DR TAG BOTTOM AT 3250'.. ..... _.. Eigki ': :fKigit::**121110:111 OP :::•. iiii i4oP iiiirCigiORO*00600h4:400110000111i)0:74046!00:1:Wgtl 1 it : • A:::1.40::r:':.:••• i3 .::-.1::::::61.1:tilli: 111Mitg:i.FM.:§00k• CONTJMN#PRC;V..,139._)1.YM.7. SAME TIMgiltil so:::::::::..,. . .:::: :...- - ...::::7:::::::::! , ti;::::41::: : „ 2 :-Agns::::::mi:::RU SLIKEMEWER6,311140.10,vo Pq.sof.0 !tEt pReyyaluti2:. ::011.::: : -: .....:.::::„:::i:.§iiiiii,:siommi:: ot4:Laa#11qN: TO t. :.::. *.: • ,$,i:640 :::•4::::1::::iiiiii::::::mig ;lv::: ': =::::. ::::; ::::,:- - ' '''''' - lit:1;;Vriirai,;•••:- . ; ' 10:30 - 11:30 1.00 ABAND 15 D P BALANCED PLUG #1: 3250' - 258T PUMP 5 BBLS H20 TEST LINE 1500PSI. PUMP 12 BBLS H20, 61 BBL. 15.8# 0 CMT, 2 BBL I-20, 1 25 BBL MUD MI 41,1.:: 30-; 00 'mAABAl d:":Iii:::•P;• • '':•P•i'::''':el•gt '''"-11Weri.til 1 12:36 - 13:30 1.00 ABAND 04 A P CIRC 1 ioSPM 500PSI. CIRC 2-3 BBL CMT TO SURFACE „01:•:,.::::.:'1•33:4:::Ii,,:gii13 0. .. ....14:(?4, . ::•::E 58..6pprIlti.: Eli:V::::: 147;i:iiN:4rt ':::::51:0,61c:•;:::::iii.W.G. aotrZigipPtti: $:10.1.0061-...257:11:g:.::::.::::Y:;; 14:00 - 15:00 1.00 ABAND 05 C P POH SLOWI 1981' - 1 •-m:mw:W;•':: 50 '• i•'' -'00t 9013iiilitIRD 2 014:00 Or To.gUttEirdERO:::: 15 - 16:00 0.50 ABAND 15 D P BALANCED PLUdi3: iiii' - 1370' PUMP 12 BBLS H20, I 58.2BBLS 15.8# 'G' CMT, 2 BBLS H2O , 12 BBLS MUD. ....... . . A9 9 9 P ,9t.lAp §(, 7C a rORitf:17:"!: . :1:am] , ::: . i:i::i:5 ,,, i.:•: , ::Rtimmen:Montligg 17:00 - 17:30 0 ABAND 04 A P CIRC 170SPM 680PSI. CIRC 1-2 BBLS CMT TO SURFACE • Ea,:,:. 1: *001:.':,figt100;:i0.17.6Wakiik;: 18:00 - 1830 0.50 ABAND 06 a P POH SLOW TO 740. 1 183i:. - 04 g:::::;i::*::::::::notn:ORC;i1564PM;;5c100.SLCIROVI3138LSChitr.TO:Sui*ACtl;r:::: 19:30 - 0:00 4.50 ABAND 05 C P POH UD DP FROM HOLE START L/D DP FROM DERRICK. WHILE , WOC . . . ,--. ' .•-• -' 1•;• -'r •"•': i . : MD• 3 250 • 2/24/2009 :. .•••..- • - -..- ••• ..-,..•--..:::.:,. :.;. •;..-._:-:•...* ! :.':',•• ! :•, '•; . • . . .. • . . [ 000 rl:•.=::;:i '2..,30 (: OTINUE;tiitio:totom.tottmo':... waegsigi:;::::v:::::. i ... :.-.-•-:::: :::::: ::::11::. 1 2:30 - 3:30 1.00 ABAND 05 C P TIH AND TAGGED CEMENT PLUG #4 AT 755' MD. SET DOWN 15K FIRM. PRESSURE TEST PLUG TO 650 PSI FOR 10 MIN LEAKED 11 OFF TO 625 PSI GOOD TEST WITNESSED BY BLM REP TIM LAWLOR ::: :.,.: : ABANOSirlbSiSigi:=644,1.:::Ukt:01 6:00 - 8:30. 2.50 ABAND 15 D P MU 9-5/8" HOWCO EZS1/. RN AND SET AT 200% PULL TEST TO 35K. SHEAR AT 60K SET DOWN 16K TOH L/D RUNNING TOOLS.. . 3.06::::,411::mptigi50 i:,::;:::.:.::::--4,0ANa:.::::!,:::::A•15 litiOPs::::::1t.LR4$4:#041807.,•Egzpyriir :::':. :Bc. : ASA: i • : :' ';',',: Oti " : ..; .;;;;,•....4,3;::;" I 11:00 - 12:00 1.00 ABAND 05 C P LD DP. WASHOUT BOPE STACK wrii-FW. ! iiiigg:ipiatiiiV :iiiiO40061606;$0:34,P migl 12:30 - 0:00 11.50 ABAND 13 A P ND BOPE. ND VETCO 'B' SECTION OF WELLHEAD. 2/25/2009 . „''''z'• ' -. ' • " : . • ,.- . .. 5 ' : 2 • • MD: 3,250 991: i.p i1 POP: :..::::','::::::::!1:•:0.0 1111101: : :121215:4V,::::WOoKok0600:; 40(4:•$*100 1 . .„. §Attiq5 04 ..„ 6:00 - 7:00 1.00 ABAND 11 B P CUT 9 5/8" Ctl 26.5' KB & LAY DOWN 9518" CSG STUB 4/14/2009 . 3:13:49PM . I . , . • . • • - . ..`......=". - - I ............. •• ::[: .W ' ,, - •••,- ,.. ,. . • • =:Ik'l..t'll';. 7 .-.'igagi.:•:.•'t - .. 7 .'.'- - t, , '. - . - •-- - -- - 7:00 - 8:00 1.00 ABAND 11 .AOM ROTATIVORM: .... B P .. ,,... t rr,,,.:,..,,,,,,t IN ot STA I6 LlE 64 D 1 ..,a ARM y S ii00 0N w C N U ,S TT B R DEF,THs _ .. .. ., ‘ .: E ON. • 481164:'' n ABAN D ii.. '''' :: 1 1 .1 . ''::'' ' WITNESSED ES FANRODMApepERILA0vRtzWBEYLDBABANLi : m RE TI N M MEN LA T P RIG RELEASED iaT .! 3 ..... _ _ . , ,,R.. ___ ___.: ..:.._,..,;,,,:..::..... 1..........4419 ,,..FRoal p. .vINORRA..Pt ..L.CYY'N ................................................c....T2.0.:.1k...tte.43:4.94'01......:N # P...............................J.....................................s.....rtit ompti(EW;,..:R MPYE..J.... , .. 15, ..bk• W E. HA14-DiSEI.IvICE • _. Mil - 3,250 •-•,-,::::,„,-,,:,..,,::„.,,,,,,„„:„-,„„„„- .., - .. . - , ,_ IT . 2/26/2009 . . :. •:.r.' • . 0:00 - 0:00 24.00 RDMO 01 E P T S IJ H B I P POEND PEAK A l D E u - 1 EA TD COMPONET ON 7EA MA EA BOP TROLLEY, 1 EA STEP UP SKID , 18 # 5 lEA #9004 #4 15 BBL 503 #6 lEA SLB GEN UNIT, 1 EA MUD MANS SHACK, 1 EA GAS BUSTER PEAK ROLLIGON J 1 I 1 D 0 14 7 PIPE SHED #1 ON AFC STEIGER ti35 cA BB T L c L O ICI # UI 9 D 0 MUD ON CATCO ON AFC # U OF SLB WL EQUIP FOR CHANDLER ON ROLLIGON #R1251 #8 EA PIP 35504 #7 1LOT E SHED #2 W/ SKATE ON ROLLIGON #R1324 .#9 1 EA PIPE SHED #3 ON ROLLIGON # R1316 # 10 1 EA ROCK WASH BUILD ING ON AFC STIEGER #35502 #11 EA PIPE SHED #4 ON AFC STIEGER # 35505 , 1EA CUTTINGS BOX , ON AFC STIEGER # 35-501 3EA RIG WIND WALLS, lEA RIG MAT, 1 EA RIG TOP DR IVE 4EA 75 BBLS MUD TANKS ON PEAK R120 2 , R1203 R1250, R1249 2127/2009 •• • • MD: 3,250 . . . . . . , .., , . -- MIS 1 PIIZtftElj A IR •'-':•.Z4Miii-gi3::::: rik rER ON'CRUZ48 .964I2kaggm:::::::::::••::;:;::: , •,..?•;,#•; , , ,, ig*.••: • .-:: .., ••••••01-D.71:c - -:#: : : • AR:116..!ill'igggatfigiEV . 56,;:i:::i' - : :::. „ , : . - •*, .-.::':.:.•,•'ghliiiofiAti4,ik,: iiiipoqpg:02NT.J3004N;?,;S• : ,, , ,-... , .... :. .... , ... : • ,: , 4 , ;, , :iivit. ,„• , . q ..„ s'''''•Ig•-•ii:i:•'i''iii.:••'..;1 t -:',!'41'";41f0;04flttli!!2:::::::1;::::r'::::''',.•'• .;:•:!'.ii:..tilt'illi!ilighiaaON.::p04109:1?antaiE...,.!Ilettist:::::::::::::,!,.:::ttlit • :•a dtEkATOR :::umcaimaltizt 01 t "''''14::''F'V'112:2:°::::"s:.:'''"I'I'''111'1ZI;i3ii;aliiiii'L1:9.J.•.1to di,=14N01gi..1:P444T - gAiithi.#16iliiNO...:.... . .....t 'AiLtEt ........:;:-..... ..,......... .... ... .........................41........[,.............:Z...'.............................::::.m...............gt........E.......o.....A....................P............. --.....;..........;:...........1..........0140..A.0:„„„....9.!..9........... ............................................................................................................................................................................................... ;,...............- ..i......... ........s.g......g........................;........................,............::i.........-...o.k...mm..miosmrm...r..::::................g,!..t.a...K.t.sftgunk..i...,:-f•........'.ebg . ............................................. ......................................................................................................................-:..'.•.... .......'.............m............m.............................". . - ....... g .1.4;.:::::. ..-Am.....,...........P ikktia.i.t.........v.m....44........................................... 4''''s'''''''':'''''''"'''''':'":':''.''''''"...': ''''''''"'';'''.":.':.:'"'"'""".''''''''''''''''I''''''':':'m'''''''''''.':):':''':': ''''''' ''''''''''''''''''''''''''''estiAti .........4 - :::,,,.....„.„..... .„...,....A.:,„„„m..„:„...„..........„..,,,.......... ' ' "":..'""''''nm'..'. tiii0-TRUtictiCP.toN.#M.fikt• . ••? . :', .:::;;;'::::::::::•$.:.::::::::::::::Mii:':;;:::::::::::: ... w ft LT707 O . , •••5602-vi:„•:„,...,,,, ..•,...„,„,„,„„„:1,,,,,,,,„:„0,,,,,„„,:„,,,.. 5,:::::::•;•':':;i.'.::::::,:::e;•:.:::'.'•-••••••:::::•:A:::::::FAiltk:::,f!::',OR::::::::EF:::VMM:2;.:,.•:::•::::.,..:„...g.,::M.:1,:':'.,-•:‘,'•:'::.7.:11•VIEM::;::.6LoAeik$A10., ' ....11MM IIVINP:•-,,,,,ti,*.g:•;z•:.!::::::::?::::-J„,.V.0:;:::::::•:5:*••':','•:-.,::',.:1,n-P.1:::'..::::1::::EM:' LINE LUBR1CATQWQN : :::::- -'..--•,;:k:.---a::::•,,::k::::iz :•-•"::::.:i:.;:•::::::„„..4:::::'1,04:NRIIIPMettr'r';'.::e•'.'.11'!•:::.:.2......':::::•:.:1....':::,:$',Y '-':•.;:,:r..4,:.',.::.:4:.'•:*::::e•:;',:',.::';:::::::,,,,.,Z.axii.0::04..DNg:::•.:,„,....,: ROLLS HERtiiLiTOr.,,,,,,,, •:••• .„. ;,..,•-miir"614Apc35503,;.:,:;:,;;;:::::;:i.:::,:...z.:,..-.:.:,,,...:::,:•:;;:::.,„:;: LOAD #2575 BL uJU MUD ON CATCO 9OO4 :.:',:biiiii:li',4kigi:i1:::::::Y.:::::::$:::-. •••':::;;:.:::::::•::::i.:::::iiii:::aii,::::::.iiii,;:..::::::::::iWg:,:gi::::::::':::SCTAltr.-::•::::::::;:::::::..;.:'?:.:......;::-...:';:::•'-'-•: ''''.%0'.:::':::::t•'::::::111::::::::::::Si::::: !...r.......0...............g..3.1....p.iiia.......................................-,...................... ....„,........ . ..... .„ , 1 .... . ,..........4.§4...............................N.....:....................i........................1.0m.........m•":..........4...........i.g..............................;...g.........'........15.gfurk.o..........m............"..-..............oNes MUD ON C ATCO 901 2/28/2009 .--•••••]•]:::,,,,:'""'"''''''''" ' I :-•',.:,..:'‘::'!!:•:.1,T;:,"A!!'•.:UI:!.:1''''=1-!,i:'::::::',:::::::::::::::.•,,,':;,.,:::::::--!.:• :',,9.:1112::::Mqii!:::::::itiit.4•:::::::::::;'hiiliii:iiii:iii.aig;lei$:::k•!•::::::;-•:-:,.-:-.;,:.-;:',;-,;E:::14::,i--:._ VAD#267ApPl....my - ..""•••••-•:-"-- tali 3,250 :::•• .:,,, . •,. . ,,::: . ,,..:•••••:;:::::,,,-,....„,,,,.."...,- •. •, .....„;;;;;;. ;-., :::...;.•, .:"..• . -r. 7 - 1 ,:-_, • (1`; . •• ,, 3 ' •'-' - - • L - . ..... 1 ....• .:.. ,..: .... ...,.•• -. • 1 1 1 i 1 1 1 . . - 10 4/14/2009 3:13:49PM . •1 1 1 Anadarko: Wolf Creek #4 208 -194 16 2-171 1 V rrc Operations Summary 2-02 -2009 The . 1 was ins • ected b Bob Noble (AOGCC) on 2 -2 -09 Built spud mud. P/U HWDP and rackes 't back. Started to P/U BHA components. 2 -03 -2009 P/U B components. Worked on the rig (repairs, thawing, etc.) Cleaned out the 16" conductor. Spudded le well at 22:00 hrs on 2/3/09. Drilled to 140' while P/U DC's. MW =8.8 #. illing while P/U DC's. Drilled to 401'. POOH for pump re 2 04 -2009 Continued g p p airs. MW =8.8 #. p 2 -05 -2009 Cleaned out i p liners and suction lines, etc. RIH. Drilled to 641'. MW =8.8 #. 2 -06 -2009 Continued dri • g to 1027'. CBU x 2. Start wiper trip. Pulling & backreaming. MW =8.9 #. 2 -07 -2009 Continued bac - aming to 510'. RIH to 1027'. CBU. POOH. Found a washout in DC's. RIH to 1027'. CBU x 2. ' • OH: OK. MW =8.9 #. 2 -08 -2009 Finished POOH. ' E -Line: ran quad -combo with caliper. R/D E -Line. R/U casing tools. Ran 9- 5/8 ", 40 #, L -80 casin_. MW =8.9 #. . 2 -09 -2009 RIH with 9 -5/8" casin_ to 1010' MD. CBU. MW =8.9 #. Thawed out cement lines, etc. Cemented in 1 stage with 90 bbl o SL & 23 bbl class G cement. Displaced with mud. Bumped the plug: +/- 45 bbl of cement to s ace. Blow down lines. L/D landing joint. 2 -10 -2009 Wash out and N/D diverter. /U & test wellhead assembly. Start N/U 11" BOP stack. 2 -11 -2009 N/U BOPE. Test- • e $ • _ -• : j • I 1 ). BOP test witnessed by BLM field inspector Tim Lawlor. 2 -12 -2009 Finished BOP test. L/D BHA 7- 4" components. P/U more 4" drill pipe. Top Drive failed (electrical or computer problem). ouble shoot top drive: no success. 2 -13 -2009 Continued trouble shooting top dri . RIH with OEDP. Circulated and swapped out mud. POOH. Top drive working: OK. P/U drilling :HA. 2 -14 -2009 RIH with bit & BHA. Tested casing to 00 psi: OK. Drilled out shoe track and drilled 20' of new hole. CBU. LOT = 24.6# EMW. Witnes by BLM. Drilled ahead to 1260' MD. MW = 8.8 #. 2 -15 -2009 Drilled ahead to 2125' MD. MW = 8.8 #. • :U. Wiper Trip. 2 -16 -2009 Drilled 8 -3/4" hole to 2892' MD. MW = 8. • 2 -17 -2009 Drilled 8 -3/4" hole to 3165' MD. CBU. Wipe Trip. Drilled to 3250' MD. Conditioned the hole for logs. POOH. MW = 9.0 #. Dev = 3 ° . 2 -18 -2009 Finished POOH. R/U E -Line. Logged the well a .rogrammed. MW =9.0 #. 2 -19 -2009 Finished logging runs #2 & #3. R/D E -Line & pre.. ed for weekly BOP test. Tested BOPE (witnessed by Lou Grimaldi, AOGCC). 2 -20 -2009 TD =3250' MD. R/U E -Line. Ran MDT's. 2 -21 -2009 TD =3250' MD. Finished MDT's. RIH with SWC tools. W = 9.0 #. 2 -22 -2009 TD =3250' MD. Finished SWC's. R/D E -Line. L/D BHA. MW = 9.0 #. 2 -23 -2009 TD =3250' MD. RIH with cement sub on 4" drill pipe. Spo ed balanced cement plugs: #1, 3250' - 2600', 61.0 bbl, "G ". POOH to 2587'. k BU #2, 2587' - 1981', 58.6 bbl, "G ". POOH to 1981'. C „U #3, 1981 - 1370', 58.2 bbl, "G ". POOH to 1370'. CB #4, 1370 - 740', 58.2 bbl, AS -1. POOH to 740'. CBU LDDP. 2 -24 -2009 Ta: tested 41u! #4 to 15,000 #. Pressure tested .lu• #4 to 500 .si. Se, . 11' u • Spot 17.6 bbl AS -1 cement plug above EZSV: cement to surface. Wash ou :OP's and wellhead. N/D BOPE. All cement plugs and tests witnessed by Tim Lawlor, BLM. 2 -25 -2009 RIH with casing cutter. "Dry cut" the 9 -5/8" casing at 26.5'. "Dry cut" th- 16" at 26'. L/D stubs. Clean out cellar. Welded on abandonment ID plate. Released the rig at noo on 2/25/2009. 2 -26 -2009 Rigging down and de- mobilizing the rig, etc. 2 -27 -2009 Rigging down and de- mobilizing the rig, etc. 2 -28 -2009 Rigging down and de- mobilizing the rig, etc. 3 -01 -2009 Rigging down and de- mobilizing the rig, etc. Final report. • • -. , Aria d a Plc. : W Creek #4 Petroleum Corporation P &A Casing: Cutoff 16" @ 26'KB and 9 -5/8" @ 26.5'KB e �ti Vie , \ \ R,qq,, 4 S *4...4 Plug #5 AS -1: �.. °5 °.:'°:, 200' I 4a ,; e ; , . ...., 200 to Surf ▪ '`' °` 17.6 bbl 15.7 ppg ASA1 • 1o°. ;Rti ° °° .tit N e ti Tag & Test a :.; 200' 1e;.1,.i, soo psi a °i 9 -5/8 " 40# EZSV at 200 I I ° eti ^ ;' 'sue \; \; w;';';, <e; \; \; °;,;\a •;,• ". "`.. • ,,v,, „` -. l 9 -5/8 ", 40# L -80, BTC at 1010' ` ; .A AAa,V0, %% %W.; \: Plug #4 AS -1: v *,,, ;' e Rg ,, , tiveeiek aA ° ° ° \. e . : �A\t= ..:.5 �� 1370' to 755' (tagged TOC) •sg sass:: \ \:c ,:: s ' 56 bbl 15.7 ppg ASA1 ;�\ i ;. ; .,% g ; g ti l ; ; a ;; q, 1 e S e \ y ti `S \ 1 . 1 .4, \, \`6 .e %,... ; ; ;.. , ;:�.�e v* % , Plug #3 class G: ,4.4.4,4.4.4 . .°. \• \ a .l `.` °\°''•``````" 1981' to 1370' • ti tie .. �S,4 ,,,, . �4 °. v. . ;z,:.:..:'.; 58.2 bbl 15.8 ppg G ti \6 -6:; .v.v.., ; e ti 1.; :1. `,10`° 1 , ` .. ea a ,., e4 .. 4,4 .4.4.•K`0.4. .4."`.`O.`•e'": . tie ,,,,, t�5,A1 e ti. ti. ; ; 1.1: \.1•: .a'tee a ; ; ;� ;� ; ; \�titi.ti.l. ; 8 -3/4" Hole $) 4.\•:.4.1: L \."`t°`.\.\.`°.`°. °`°'`'ssy #2 class G: (,ti: .1.1.;.4'°:.:.1.;.`` ,,,,,.'°. e . ,;,. \.. \.\. ;. ;.;, \.,.•a 2587' to 1981' .ti Aikt :. .ti \.191.4'.°0.1.191. .,4. \e\;;; \;c:�. ;. ;: \.:.t: 58.6 bbl 15.8 ppg G H; \,1, \, g \ t^.;. ;t .;..;,ti.ti.;.;.+..% �s ek e; .se ., ∎%+% S. \� \o e " . 4: ; \ : \:•0 a %`."`.'".``. 66 %+ee4a; eti .1A N. \ VA:IA Plug #1 class G: . ti94e4e4 a 3250' to 2587' e \.•. �. 61 bbl 15.8 ppg G ; ; ;. ; a � ; ti; ..... : , , , °` ,`` ` ` ` „,,,, ,,, 3250' \.tie Mar 6, 2009 _a ,, • •• e • ^4 _` , • • a v ? . `• \ mop _ �' , l r ` :, ' .f • • w i \, .�.� • • Vim ` , ..?' ,• .. , i tj 1 "" ei ' • . •41,../.. . :e y .. . ;°'.9 /;� • 4 ♦! ' . • .• . . I ` REY DATE BY CI( APP • DESCRIPTION REV DATE BY ill APP DESCRIPTICN s 1 OF N __i__, � I � `` ��Ntttttttt ) i -. ,44'111 1 r . «3I 32 33 34 35 36 h 32 .. I T 1 N i cc cc 1 �� ...„,„.1.- ..7 t /, i t 3 6 5 4 3 2 t 6 1. • 49 - . WOLF CREEK �� j WO 4' ■ :Kenneth W. Aye , cs • • x,..,•• •I i LS -8535 pIf Q_ f f i � Fp • ^� i j °4 ! L� `' 1 1 3 18 17 16 15 !4 1 3 18 I 24 19 20 Z21 22 23 24 19 I HEREBY CERTIFY THAT I AM A PROPERLY BOUNDARY OF I REGISTERED AND LICENSED TO PRACTICE LAND LEASE NO. AA - 86604 SURVEYING IN THE STATE OF ALASKA, AND THAT 25 30 29 28 27 26 25 30 THIS DRAWING REPRESENTS A SURVEY MADE BY ME, .OR UNDER MY DIRECT SUPERVISION. 3 �--- k I 36. 31 32 33 34 35 36 to *0 31 TIS I ct ft I T2 E 1 .- _ 5 i 5 4 3 2 1 6 VICINITY. MAP 1 " =2 MILES WOLF CREEK NO.4 40' WIDE PRIMARY NOTES I SCALE: 1" =200' ROAD 30' WIDE 1. ELEVATIONS SHOWN I - -- _ '��_: ` ARE NAVD88 PER .••��� ACCESS OPUS SOLI1l10N. .. ,,ROAD 2. .. COORDINATES SHOWN INVERTER LINE / : / ■ IN NAD83 AND . "AZIMUTH =315° :. / o' .... � NAD27. ALASKA /... STATE PLANE ZONE 5. �.. 3. ::GEOGRAPHIC / / / / � . NAD83 T NAD27. f ./. /! 4. ELEVATION OF WELL / , 40, M OE CELLAR = 711.6 FEET. S / # • \ SERVICE f `` ROAD -.�..� PRIMARY WOLF CREEK LOCATION "WOLF CREEK NO. 4" . LOCATED WITHIN PROTRACTED LEGEND SEC. 9, T 1 S, R 6 W, UMIAT MERIDIAN. 1845' F.S.L. 1954' F.E.L .. . AS BUILT CONDUCTOR LOCATION NAD83 COORDINATES: LAT= 69'22'0247" N NAD27 COORDINATES: LONG = 15321'04.59" W LAT =69"22'03.93" LOUNSBURY Y = 5,618.269 LONG= 153'20'53.75" & ASSOCIATES, INC. X = 1,724,140 Y = 5,618,548 " X = 584,114 . 1 '4 1 • POT' 272.5451 Anadarko " WO LF CREEK NO. 4" EXPLORATORY WELL CONDUCTOR AS BUILT Petroleum Corporation CADD FILE NO. DRAWING NO: SHEET: REV: WC NO.4 AB.DWG 14 JAN. 09 I WOLF CREEK NO.4 AS BUILT ( 1 of 1 I 0 , • • Anadarko Exploration -Wolf Creek Wolf Creek #4 Wolf Creek #4 Wolf Creek #4 Design: Wolf Creek #4 Standard Survey Report 05 March, 2009 • • Halliburton Company Survey Report Company: Anadarko Local Co- ordinate Reference: Well Wolf Creek #4 Project Exploration -Wolf Creek TVD Reference: Wolf Creek #4 @ 729.60ft (Arctic Fox) Site: Wolf Creek #4 MD Reference: Wolf Creek #4 @ 729.60ft (Arctic Fox) • Well: Wolf Creek #4 North. Reference: True Wellbore: Wolf Creek #4 Survey Calculation Method: Minimum Curvature Design: Wolf Creek #4 Database: EDM 2003.16 Single User Db Project Exploration -Wolf Creek Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Map Zone: Alaska Zone 05 Using geodetic scale factor Site Wolf Creek #4 Site Position: Northing: 5,618,616.00ft Latitude: 69° 22' 4.581 N From: Map Easting: 584,271.00ft Longitude: 153° 20' 49.357 W Position Uncertainty: 0.00 ft Slot Radius: " Grid Convergence: 0.61 ° Well Wolf Creek #4 Well Position +N / -S 0.00 ft Northing: 5,618,548.00 ft Latitude: 69° 22' 3.929 N +E/ -W 0.00 ft Easting: 584,114.00 ft Longitude: 153° 20' 53.756 W Position Uncertainty 0.00 ft Wellhead Elevation: 18.00ft Ground Level: 711.60ft • Welibore Wolf Creek #4 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (q (nr) BGGM2007 2/4/2009 20.22 79.76 57,399 Design Wolf Creek #4 Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 0.00 Vertical Section: Depth From (TVD) +N/ -S +EI -W Direction (ft) (ft) " (ft) i ° ) 0.00 0.00 0.00 237.61 Survey Program Date 3/5/2009 From To (ft) (ft). Survey (Welibore) Tool Name Description 121.13 3,187.51 Wolf Creek #4 (Wolf Creek #4) MWD MWD - Standard Survey Measured Vertical Vertical Dogleg Build Turn Depth Inclination" Azimuth Depth +N1-$ +E/-W Section Rate Rate Rate (ft) ( ( (ft) (ft) (ft) (ft) ( °/10Oft) ( ° /lOO ft) ( °IlOOft) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 121.13 0.85 191.25 121.13 -0.88 -0.18 0.62 0.70 0.70 0.00 247.45 1.31 191.25 247.42 -3.22 -0.64 2.26 0.36 0.36 0.00 369.94 1.31 196.13 369.88 -5.93 -1.30 4.28 0.09 0.00 3.98 495.75 1.30 199.88 495.66 -8.66 -2.19 6.48 0.07 -0.01 2.98 621.27 1.33 204.38 621.15 -11.32 -3.27 8.83 0.09 0.02 3.59 743.42 1.45 207.77 743.26 -13.98 -4.58 11.36 0.12 0.10 2.78 866.34 1.56 209.46 866.14 -16.82 -6.13 14.18 0.10 0.09 1.37 988.37 1.64 215.26 988.12 -19.69 -7.95 17.26 0.15 0.07 4.75 1,007.10 1.56 216.48 1,006.84 -20.11 -8.26 17.75 0.46 -0.43 6.51 1,107.99 1.73 222.58 1,107.69 -22.34 -10.10 20.50 0.24 0.17 6.05 1,235.33 1.76 223.63 1,234.97 -25.17 -12.75 24.25 0.03 0.02 0.82 1,362.69 1.79 233.28 1,362.27 -27.77 -15.70 28.13 0.24 0.02 7.58 3/52009 10:06:48AM Page 2 COMPASS 2003.16 Build 42F • ! Halliburton Company Survey Report Company: Anadarko Local Co.ordinateReference: Well Wolf Creek #4 Project: . Exploration -Wolf Creek TVD Reference: Wolf Creek #4 © 729.60ft (Arctic Fox) Site: Wolf Creek #4 MD Reference: Wolf Creek #4 © 729.60ft (Arctic Fox) Well: Wolf Creek #4 North, Reference: True . Weilbore: Wolf Creek #4 Survey Calculation Meth od: Minimum Curvature Design: Wolf Creek #4 Database: EDM 2003.16 Single User Db Survey _ Measured Vertical Vertical . Dogleg Build Turn . Depth inclination Azimuth Depth +N1 -4 +E/4V Section Rate Rate Rate (ft) ( °) (0) (ft) (ft) (ft) (ft) ( 1100ft) ( ° /'tOOft) 0100ft) 1,489.33 1.93 233.46 1,488.84 -30.23 -19.00 32.23 0.11 0.11 0.14 1,617.55 1.84 240.25 1,616.99 -32.53 -22.52 36.44 0.19 -0.07 5.30 1,745.37 2.02 243.35 1,744.74 -34.56 -26.31 40.73 0.16 0.14 2.43 1,871.78 2.18 250.87 1,871.07 -36.35 -30.58 45.29 0.25 0.13 5.95 1,999.86 2.49 247.51 1,999.04 -38.21 -35.45 50.40 0.26 0.24 -2.62 2,134.91 2.54 251.11 2,133.96 -40.30 -40.99 56.20 0.12 0.04 2.67 2,261.75 2.52 247.36 2,260.68 -42.29 -46.22 61.68 0.13 -0.02 -2.96 2,388.37 2.80 245.63 2,387.16 -44.63 -51.61 67.49 0.23 0.22 -1.37 2,516.03 3.01 247.60 2,514.66 -47.20 -57.55 73.88 0.18 0.16 1.54 2,643.55 3.05 249.37 2,642.00 -49.67 -63.82 80.50 0.08 0.03 1.39 2,770.77 3.02 249.85 2,769.04 -52.01 -70.13 87.08 0.03 -0.02 0.38 2,898.85 3.19 251.71 2,896.93 -54.30 -76.68 93.84 0.15 0.13 1.45 3,026.46 3.15 251.85 3,024.35 -56.50 -83.39 100.68 0.03 -0.03 0.11 3,152.80 3.24 250.91 3,150.49 -58.75 -90.06 107.52 0.08 0.07 -0.74 3,187.51 3.24 252.27 3,185.14 -59.37 -91.92 109.42 0.22 0.00 3.92 3,250.00 3.24 252.27 3,247.54 • -60.45 -95.28 112.84 0.00 0.00 0.00 Targets Target Name hitlmiss target Dip Angle , Dip Dir. TVD +N!-S +El -W Northing Easting Shape. ( °) (1 (ft) (ft) (ft) (ft) (ft) latitude Longitude Wolf Creek #4 T1.a 0.00 0.00 3,248.10 0.00 0.00 5,618,548.00 584,114.00 69° 22' 3.929 N 153° 20' 53.756 W - actual wellpath misses by 112.70ft at 3244.39ft MD (3241.94 TVD, -60.35 N, -94.98 E) - Point Checked By: Approved By: Date: 3/5/2009 10:06:48AM Page 3 COMPASS 2003.16 Build 42F S WELL LOG TRANSMITTAL To: State of Alaska March 16, 2009 Alaska Oil and Gas Conservation Comm. Attn.: Librarian 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 RE: MWD Formation Evaluation Logs: Wolf Creek #4 AK -MW- 6332166 Wolf Creek #4: 1" MD RESISTIVITY & GAMMA RAY Logs: 1 Color Log 50- 119- 20002 -00 2" MD RESISTIVITY & GAMMA RAY Logs: 1 Color Log 50- 119- 20002 -00 5" MD RESISTIVITY & GAMMA RAY Logs: 1 Color Log 50 -119- 20002 -00 Digital Log Images: 1 CD Rom 50 -119- 20002 -00 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Services Attn: Bryan Burinda 6900 Arctic Blvd. Anchorage, Alaska 99518 907 - 273 -3536 Fax: 907 - 273 -3535 - " = - Bryan.Burinclae alliburton.com Date: - Signed:: e-113(4 • Page 1 of 2 Regg, James B (DOA) . '22 ^ {q+ From: Coyner, Skip [Vern.Coyner @anadarko.com] 3Cci( Sent: Monday, March 09, 2009 12:21 PM \ e, 11 To: Regg, James B (DOA); arcticfox @doyondrilling.com Cc: Maunder, Thomas E (DOA); DOA AOGCC Prudhoe Bay; Todd Driskill; Ron White Subject: RE: Wolf Creek BOPE Test (DoyonAkita 1) • Doyon is replacing the chart recorder • As previously communicated, H2S scavenger was sent to location the same day via aircraft. ,/' Skip Coyner 907 - 273 -6305 ofc 907 -440 -6647 cell From: Regg, James B (DOA) [mailto:jim.regg @alaska.gov] Sent: Monday, March 09, 2009 11:51 AM To: arcticfox @doyondrilling.com; Coyner, Skip Cc: Maunder, Thomas E (DOA); DOA AOGCC Prudhoe Bay Subject: RE: Wolf Creek BOPE Test (DoyonAkita 1) I would appreciate a response to my concerns outlined below Jim Regg AOGCC 333 W.7th Avenue, Suite 100 Anchorage, AK 99501 907 - 793 -1236 From: Regg, James B (DOA) Sent: Wednesday, February 25, 2009 2:57 PM To: arcticfox @doyondrilling.com; Vern.Coyner @anadarko.com Cc: Maunder, Thomas E (DOA); DOA AOGCC Prudhoe Bay Subject: Wolf Creek BOPE Test (DoyonAkita 1) AOGCC Inspector witnessed test at DoyonAkita 1 (Wolf Creek #4) on 2/20/2009 and noted several deficiencies. His BOPE Test report is attached. Inspector suggested the 10K psi chart recorder be replaced with a 5K psi chart recorder - recording equipment must be suitable for the range of pressure testing. I consider the 10K psi chart recorder to be a miscellaneous failure that must be corrected. Also, the Operator test report form (template attached) requires a written response when repairs are completed - instructions are included in the test results section of the form. Repairs completed during the normal flow of the test should be summarized in the remarks section of the report and documented as an "FP ". Otherwise, you should send an email when repairs are completed summarizing what was done (repair and retest). In this particular case, Anadarko needs to respond to the following concerns: 3/9/2009 • Page 2 of 2 - lack of mud scavenger materials at location (noncompliance with condition of the permit to drill); - replacement chart recorder. One last item regarding test report - please make sure to send to all addresses listed on the top of the test report form. Jim Regg AOGCC 333 W.7th Avenue, Suite 100 Anchorage, AK 99501 907 - 793 -1236 3/9/2009 • March 2, 2009 Mr. Tom Maunder AOGCC 333 W. 7 Ave, Ste. 100 Anchorage, AK 99501 -3539 Re: Anadarko, Wolf Creek #4 Permit No.: 208 -194 Subject: Weekly Up -Date Feb 23 — Mar 2 2 -23 -2009 TD =3250' MD. RIH with cement sub on 4" drill pipe. Spotted balanced cement plugs: #1, 3250' — 2600', 61.0 bbl, "G ". POOH to 2587'. CBU #2, 2587' — 1981', 58.6 bbl, "G ". POOH to 1981'. CBU: #3, 1981 — 1370', 58.2 bbl, "G ". POOH to 1370'. CBU: #4, 1370 — 740', 58.2 bbl, AS -1. POOH to 740'. CBU: LDDP. 2 -24 -2009 Tag tested plug #4 to 15,000 #. Pressure tested plug #4 to 500 psi. Set EZSV at 200' MD. Spot 17.6 bbl AS -1 cement plg above EZSV: cement to surface. Wash out BOP's and wellhead. N/D BOPE. All cement plugs and tests witnessed by Tim Lawlor, BLM. 2 -25 -2009 RIH with casing cutter. "Dry cut" the 9 -5/8" casing at 26.5'. "Dry cut" the 16" at 26'. L/D stubs. Clean out cellar. Welded on abandonment ID plate. Released the rig at noon on 2/25/2009. 2 -26 -2009 Rigging down and de- mobilizing the rig, etc. 2 -27 -2009 Rigging down and de- mobilizing the rig, etc. 2 -28 -2009 Rigging down and de- mobilizing the rig, etc. 3 -01 -2009 Rigging down and de- mobilizing the rig, etc. Final weekly report. Skip Coyner Drilling Supt. Anadarko Petroleum Corporation • February 23, 2009 Mr. Tom Maunder AOGCC 333 W. 7 Ave, Ste. 100 Anchorage, AK 99501 -3539 Re: Anadarko, Wolf Creek #4 Permit No.: 208 -194 Subject: Weekly Up -Date Feb 16 — Feb 23 2 -16 -2009 Drilled 8 -3/4" hole to 2892' MD. MW = 8.9 #. 2 -17 -2009 Drilled 8 -3/4" hole to 3165' MD. CBU. Wiper Trip. Drilled to 3250' MD. Conditioned the hole for logs. POOH. MW = 9.0 #. Dev = 3 ° . 2 -18 -2009 Finished POOH. R/U E -Line. Logged the well as programmed. MW =9.0 #. 2 -19 -2009 Finished logging runs #2 & #3. R/D E -Line & prepared for weekly BOP test. Tested BOPE (witnessed by Lou Grimaldi). 2 -20 -2009 TD =3250' MD. R/U E -Line. Ran MDT's. 2 -21 -2009 TD =3250' MD. Finished MDT's. RIH with SWC tools. MW = 9.0 #. 2 -22 -2009 TD =3250' MD. Finished SWC's. R/D E -Line. L/D BHA. MW = 9.0 #. 2 -23 -2009 TD =3250' MD. This morning: RIH with cement sub on 4" drill pipe. Preparing to plug and abandon. Skip Coyner Drilling Supt. Anadarko Petroleum Corporation • • February 16, 2009 Mr. Tom Maunder AOGCC 333 W. 7th Ave, Ste. 100 Anchorage, AK 99501 -3539 Re: Anadarko, Wolf Creek #4 Permit No.: 208 -194 Subject: Weekly Up -Date Feb 9 — Feb 16 2 -09 -2009 RIH with 9 -5/8" casing to 1010' MD. CBU. MW =8.9 #. Thawed out cement lines, etc. Cemented in 1 stage with 90 bbl of ASL & 23 bbl class G cement. Displaced with mud. Bumped the plug: +/- 45 bbl of cement to surface. Blow down lines. L/D landing joint. 2 -10 -2009 Wash out and N/D diverter. N/U & test wellhead assembly. Start N/U 11" BOP stack. 2 -11 -2009 N/U BOPE. Tested BOPE 250# / 3000# (annular to 2500 #). BOP test witnessed by BLM field inspector Tim Lawlor. 2 -12 -2009 Finished BOP test. L/D BHA 7 -3/4" components. P/U more 4" drill pipe. Top Drive failed (electrical or computer problem). Trouble shoot top drive: no success. 2 -13 -2009 Continued trouble shooting top drive. RIH with OEDP. Circulated and swapped out mud. POOH. Top drive working: OK. P/U drilling BHA. 2 -14 -2009 RIH with bit & BHA. Tested casing to1500 psi: OK. Drilled out shoe track and drilled 20' of new hole. CBU. LOT = 24.6# EMW. Witness by BLM. Drilled ahead to 1260' MD. MW = 8.8 #. 2 -15 -2009 Drilled ahead to 2125' MD. MW = 8.8 #. CBU. Wiper Trip. 2 -16 -2009 This morning: drilling ahead. MW = 8.8 #. Skip Coyner Drilling Supt. Anadarko Petroleum Corporation • • February 9, 2009 Mr. Tom Maunder AOGCC 333 W. 7 Ave, Ste. 100 Anchorage, AK 99501 -3539 Re: Anadarko, Wolf Creek #4 Permit No.: 208 -194 Subject: Weekly Up -Date Feb 2 — Feb 9 2 -02 -2009 The rig was inspected by Bob Noble on 2 -2 -09. Built spud mud. P/U HWDP and racked it back. Started to P/U BHA components. 2 -03 -2009 P/U BHA components. Worked on the rig (repairs, thawing, etc.) Cleaned out the 16" conductor. Spudded the well at 22:00 hrs on 2/3/09. Drilled to 140' while P/U DC's. MW =8.8 #. 2 -04 -2009 Continued drilling while P/U DC's. Drilled to 401'. POOH for pump repairs. MW =8.8 #. 2 -05 -2009 Cleaned out pump liners and suction lines, etc. RIH. Drilled to 641'. MW =8.8 #. 2 -06 -2009 Continued drilling to 1027'. CBU x 2. Start wiper trip. Pulling & backreaming. MW =8.9 #. 2 -07 -2009 Continued backreaming to 510'. RIH to 1027'. CBU. POOH. Found a washout in DC's. RIH to 1027'. CBU x 2. POOH: OK. MW =8.9 #. 2 -08 -2009 Finished POOH. R/U E -Line: ran quad -combo with caliper. R/D E -Line. R/U casing tools. Ran 9 -5/8 ", 40 #, L -80 casing. MW =8.9 #. 2 -07 -2009 This morning: on bottom with 9 -5/8" casing. CBU. MW =8.9 #. Skip Coyner Drilling Supt. Anadarko Petroleum Corporation • • January 26, 2009 Mr. Tom Maunder AOGCC 333 W. 7 Ave, Ste. 100 Anchorage, AK 99501 -3539 Re: Anadarko, Wolf Creek #4 Permit No.: 208 -194 Subject: Weekly Up -Date Jan 14 — Jan 25 During the past week, the rig was assembled on location. Drilling crews are warming up the rig and preparing for AOGCC inspection. The service company modules are in route. We are still repairing the camp water system: lift stations, broken lines, etc. We expect to spud on or about February 2 2009. Skip Coyner Drilling Supt. Anadarko Petroleum Corporation • January 14, 2009 Mr. Tom Maunder AOGCC 333 W. 7th Ave, Ste. 100 Anchorage, AK 99501 -3539 Re: Anadarko, Wolf Creek #4 Permit No.: 208 -194 Subject: Weekly Up -Date Jan 7 — Jan 13 During the past week, construction crews worked on building the ice pad. The cellar was set. 16" conductor was set and cemented at 102 ft below ice level. The rig camp is being mobilized and assembled on location. The Arctic Fox rig has started to be mobilized to location. Skip Coyner Drilling Supt. Anadarko Petroleum Corporation • • s'ffA"_E nlAsEA S ARAH PACIN, 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 Fred McDougal Drilling Operations Manager Anadarko Petroleum 3201 C. Street Ste 603 Anchorage AK 99503 Re: Exploratory, Wolf Creek #4 Sundry Number: 309 -073 Dear Mr. McDougal: 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. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659 -3607 (pager). 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 rehearing. A request for rehearing 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. A person may not appeal a Commission decision to Superior Court unless rehearing has been requested. Sincerely, Daniel T. Seamount, Jr. Chair Z-4of February, 2009 DATED this y ary, Encl. �� � j t„ 11 STATE OF ALASKA RECEIVED ALA OIL AND GAS CONSERVATION COM SION 9-" APPLICATION FOR SUNDRY APPROVALS � * 2 3 2009 20 MC 25.280 AtB S�( a O N a Lbns CO 1. Type of Request: Abandon 0 Suspend ❑ Operational shutdown ❑ Perforate El Wa ive r � Alter casing ❑ Repair well ❑ Plug Perforations ❑ Stimulate ❑ Time Extension chorage Change approved program ❑ Pull Tubing ❑ Perforate New Pool ❑ Re -enter Suspended Well ❑ 2. Operator Name: 4. Current Well Class: 5. Permit to Drill Number: Anadarko Petroleum Corporation Development ❑ Exploratory 0 208 -194 3. Address: Stratigraphic ❑ Service ❑ 6. API Number: 3201 C Street, Ste. 603, Anchorage, AK 99503 50- 119 - 20002 -00 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 El 0 No Wolf Creek #4 9. Property Designation: 10. KB Elevation (ft): 11. Field /Pool(s): AA -86604 730' Exploratory 12. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 1975' 1974.4' 1810' (top of fish) 1810' (top of fish) n/a 1810' (top of fish) Casing Length Size MD TVD Burst Collapse Structural Conductor 100' 16" 100' 100' Surface 1010' 9 -5/8" 1000' 1000' 5750# 3090# Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth ND (ft): Tubing Size: Tubing Grade: Tubing MD (ft): N/A N/A N/A Packers and SSSV Type: Packers and SSSV MD (ft): N/A 13. Attachments: Description Summary of Proposal 0 14. Well Class after proposed work: Detailed Operations Program 0 BOP Sketch El Exploratory El Development ❑ Service ❑ 15. Estimated Date for 16. Well Status after proposed work: February 23, 2009 Commencing Operations: Oil ❑ Gas ❑ Plugged 0 Abandoned El 17. Verbal Approval: Date: February 22, 2009 WAG ❑ GINJ ❑ WINJ ❑ WDSPL ❑ Commission Representative: T. Maunder / Commissioner Foerster ArVA '18. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact S. Coyner: 907 - 273 -6305 Printed Name Fred McDougal / Chuck Rowe Title Drilling Operations Manager, Anadarko Petroleum Corporation Signature Phone 907 - 273 -6302 Date iv G 7� � 2.3 F oR COMMISSION USE ONLY Conditions of approval: Notify Commission so that a representative may witness Sundry Number: 30 0 73 Plug Integrity X BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance t 1 Other: fr' .SS\t1C 0 1/4.1.y, \ " i W G1ve� �C'Ov \ h0 cJc'O� \rcrv �c.� ©llt� R) �GC�I k r: Cc - y s c\ - oc — Ao % Va s 4 f - t. / t CA- v MM.' %-10 w c� o CA vxc�cSy r0 v; V c 1��OS Os,- c.,.3k Os� ��, 4 'v.1CC \L V.�� a �� d-NJ Vb p -, Subsequent Form Required: �0 S F F `AIfPi2OVED BY Approved by: �, COMMISSIONER THE COMMISSION Date: z � --�. � r te: r ( '> L g 7 Form 10 -403 Revised 06/2006 i '. t . - 4 '$t fiit in Duplicate I . • I •` Arandarlot Petroleum Corporation Wolf Creek #4 P & A Program Well Name: Wolf Creek #4 Classification: Exploration Start Date: February 23, 2009 API No.: 50- 119- 20002 -00 P & A Days 3 BLM Permit: 3160 (AK932) AOGCC Permit: 208 -194 P & A OBJECTIVES: 1. Spot 4 ea balanced cement plugs to fill the open hole with cement and extend the top of cement at least 100' up into the 9 -5/8" casing 2. Tag test and pressure test plug #4 3. Set a CIBP at 200' and spot cement plug #5 from 200' to surface. 4. Cut off the 9-5/8" casing and the 16" conductor 5. Top out the casing stubs as needed with cement 6. Weld on a steel plate and marker as required 7. De- Mobilize the rig, test equipment and camp. 8. Restore the location and roads HSE OBJECTIVES FOR WELL: • No Lost time Accidents. • No Spills. • No environmental impact. Drilling Program 2009 January 2009 • Well Name: Wolf Creek #4 Plug & Abandonment Plan Type of Well: Vertical Drill, Complete, Test, Plug and Abandon Surface Location: 1954 FEL & 1845 FSL Section 9 T1 S R6W UM NAD 27 X = 584,114' Y = 5,618,548' Bottom Hole Location: 1954 FEL & 1845 FSL Section 9 T1 S R6W UM NAD 27 X = 584,114' Y = 5,618,548' Est Start Date: 2/23/2009 Drilling Rig: Arctic Fox TMD: 3,250' TVD: 3,248' Pad Elev: 712 DF: 730 Objectives: Nanushuk, Grandstand Telephone Contacts: (Anchorage Office: 907 - 273 -6300, Fax: 907 - 563 -9479) Anchorage Name: Position: Office No.: Cell No.: Skip Coyner Drilling Supt. 907 - 273 -6305 907 - 440 -6647 Chuck Rowe Drilling MNGR 907 - 273 -6302 907 - 242 -7131 Fred McDougal Drilling MNGR 907 - 273 -6302 713 - 819 -6437 P & A PROCEDURE 1. After logging, L/D the BHA components. RIH to 3250' MD with 4" drill pipe. Circulate and condition the hole. Rig up cementers. 2. Spot cement plug #1 as follows: a. pump 5 bbl water & test lines to 2500 psi b. mix & pump 277 sx (60.2 bbl) of class G cement (1.22 cf /sx) c. displace with 1 bbl water and +/- 23 bbl of mud. d. POOH to +/- 2600' and circulate bottoms up 3. Spot cement plug #2 as follows: a. pump 5 bbl water & test lines to 2500 psi b. mix & pump 259 sx (56.3 bbl) of class G cement (1.22 cf /sx) c. displace with 1 bbl water and +/- 18 bbl of mud. d. POOH to +/- 2000' and circulate bottoms up Wolf Creek 4, WBM 2 January 2009 • • 4. Spot cement plug #3 as follows: a. pump 5 bbl water & test lines to 2500 psi b. mix & pump 262 sx (56.9 bbl) of class G cement (1.22 cf /sx) c. displace with 1 bbl water and +/- 12 bbl of mud. d. POOH to +/- 1400' and circulate bottoms up 5. Spot cement plug #4 as follows: a. pump 5 bbl water & test lines to 2500 psi b. mix & pump 325 sx (53.4 bbl) of AS -1 cement (0.93 cf /sx) c. displace with 1 bbl water and +/- 5.5 bbl of mud. d. POOH to +/- 600' and circulate bottoms up. WOC. e. After WOC, tag test plug #4 with 15,000 #. f. Close the annular and pressure test to 500 psi (on chart) 6. POOH. RIH with and EZSV on drill pipe and set same at 200'. 7. Spot cement plug #5 on top of the EZSV as follows: a. pump 5 bbl water & test lines to 2500 psi b. mix & pump 100 sx (16.7 bbl) of AS -1 cement (0.93 cf /sx) c. displace with 1 bbl water and wash up surface lines. d. POOH to +/- 30 below the drill floor (10' below ground level). e. Wash out the BOP stack & wellhead. 8. N/D the BOPE and wellhead. 9. RIH to +/- 30' with a multi- string casing cutter. Make a "dry cut" of the 9 -5/8" and 16" casing strings. L/D the casing cutter. UD the cut -off sections. 10. Top out the casing stubs as /if needed with cement. Weld on a steel plate with well ID as required. 11. Clean the pits and release the rig. 12. De- mobilize the test equipment, rig and camp. 13. Haul off all waste and clean the location. 14.After de- mobilizing the rig, remove the cellar and replace the soil. Wolf Creek 4, WBM 3 January 2009 • , Anad ar143 W olf Creek #4 Petroleum Corporation P &A ,lw° ° ° : k • Caliper Hole Volume = 1000.6 cf c1 °: :ex P `. ". — °_'� =2240 ft P..°. ,W AC 3250' —1010' . > ` ' , k 1000.6 / 2240 = .4467 cf /ft _ 6 :e; : n;`; ae Average Ho Size = 9.05 inches mt .r t `C°1S N Tag & Test s,, 9-5/8" 40# L -80 BTC at 1010 0-, -,,, %%., 500 psi e11 0 ... ° : ' ' " ° °` ;` xY 1400' to 800' = 600 ft 6 ::: Caliper = Casing Volume = 274.4 cf '1:1:1,ti ti i s ;off � °� e e� ,4 185 cf + 15% O.H. excess = 27.8 cf ..;...s.ese : • Total O.H. +Casing +Excess = 302.2 cf v t � , :, �.v °a , 302.2 cf / 0.93 cf /sx = 325 sx , ; 1,1 1 :.1 .1 °:,•..: „ °e°.°a.°;As,.. c,N.v�.�����A��..... • ����. 302.2 cf / 5.61458 cf /bbl = 53 °4 bbl ,1:ti;1 : 1 ; • ..::'• ""°' :.1.1..°`"1.11 ;{ ; 1 ; 1¢ ; 1 ; 1 ; 1 ; 1 ; 1,i.l ; 1 ; 1 ; t ; :9'..'°1. t �°° �t �ti Est.v.° .1.1.1.1.°•°1.1.1 a °.1.1,. v . . :°•,. ;°" .1.1.1.1.1.:.1.1, ... , '; 0, ': q "`'` 4: `:': °; Plug #3 class G: ' ,,-.% ... , , ` 2000' to 1400' = 600 ft s °` °w” ''`'`` Caliper Volume = 278 cf p0"..a.......1.1.,....' .1.1.1 e `' ° ` '''' 278 cf + 15% excess = 319.7 cf '.1., r:'..s ° "'`' ° ° °;:` 319 °7 cf / 1 °22 cf /sx = 262 sx .1 °..1.1.1.°•°11 ° °.°° :.. ` , . " ' ' w , , , ' ' ` ' ` ` 319 ° 7 cf / 5 °61458 cf /bbl = 56 ° 9 b b l 8 -3/4" Hole :;. . : �...TkA t : . . .4.6 ; 1 ; 5 ; 1 ; 4;1 .1 "C.1.C.1;1 \ %1,1,1 I. \1 °,` 1,ti ti is % 5 ; l,ti ; eti 1,1,1,E ti ;,1,1,1 ; '°: 1°: " :At1g11 °1`1' Plug #2 class G: 1t. + °.1 .1. ° °�°_ ' •e . ,.,,1,,,, 1( 2600' to 2000 — 600 ft ,,:ra�..a1a0.1•'.,,;. )` Caliper Volume = 275 cf ; h' ;} :} :..1.........1.1.1........ Awes w .,,, : i 275 cf + 15% excess = 316.3 cf 1y .1.1.;...1;1.1:1..4....1... "`.o., ,ss.. : ss ...s" ` 316.3 cf / 1.22 cf /sx = 259 sx `i•A ''°` °```` °'` 316 °3 cf / 5 °61458 cf /bbl = 56 °3 bbl 1:1,1,ti ; 1,1,1,1,1,1, 1;1 ; 1,1,1, 1,,1,1,1,,,1,13/41,1,1, ....11.1.1. }.....1•....... . ... ti. \,1,1,1,1,1,•.,ti., ,1,�,1; \,ti;S, Plug #1 class G• {% eti. }L °c1i.ASV °^e e7, ,:s.,1a . ~s;s.,.:.: 3250' to 2600' = 650 ft r "r1 ; ;; Caliper Volume = 294 cf , ,,.� �. s q s 1 svA s 294 cf + 15% excess = 338.1 cf ,1,1,••,1 \,•. ,1,1,1,1, A) ,.. 1 1 1,1 338.1 cf / 1.22 cf /sx = 277 sx 3250' i;1 1 s'sa 338.1 cf / 5.61458 cf /bbl = 60.2 bbl February 23, 2009 • • • . lk% Anadarlyp: W olf Creek #4 Petroleum Corporation P &A ,°...; , %,....... . :w .., A ,...,. ..:� Plug #5 AS -1: ,h_2 D� .. ..,�,, p,, ; °6 e °.:x a S ,.: ,, „t .,,v „ :,.„ 200 to Surf = 3 ` •i' ` ' ` '` C as i ng Volume = 85.0 cf r..,..,•:. ,,, ,,,t o [;a; •4 85 cf + 10% excess = 93.5 cf _ 93.5 cf / 0.93 cf /sx = 100 sx 93.5 cf / 5.61458 cf /bbl = 16.7 bbl N ` .. Tag & Test . a 9 -5/8 " , 40# EZSV at 200' r. 500 psi °; R \ " 9 -5/8 ", 40# L -80, BTC at 1010' %,,,,,,,,,,,-„,%,%,,,,,,,,,,,,,,,, ..., Plug #4 AS -1: 1400' to 800' = 600 ft ° Caliper = Casing Volume = 274.4 cf 185cf +15 %O.H.excess = 27.8cf Total O.H. +Casing +Excess = 302.2 cf °° . °,, °, 302.2 cf / 0.93 cf /sx = 325 sx 5 . :..: 302.2 cf / 5.61458 cf /bbl = 53.4 bbl Plug #3 class G: \ 2000' to 1400' = 600 ft ,°_,````, °' Caliper Volume = 278 cf As.,,,,,,,,.„,...„,..,,,„„„„„, ; � 278 cf + 15% excess = 319.7 cf ‘ `°'�```° _," ` ` `' _`�'�'� 319.7 cf / 1.22 cf /sx = 262 sx . ,,o, : . a .,: ., .,.°. ,,, ,' 319.7 cf / 5.61458 cf /bbl = 56.9 bbl 8 -3/4" Hole ° Plug #2 class G: .., ��.,. .... .�:�.� 2600' to 2000' = 600 ft "`` "` `°``" Caliper Volume = 275 cf °` °`°` ` 275 cf + 15% excess = 316.3 cf ^ qA4stl ee e`e;e'r 316.3 cf / 1.22 cf /sx = 259 sx "'°''` ``'°'" °`'`' ° °'' °'`.. 316.3 cf / 5.61458 cf /bbl = 56.3 bbl ;.+, a ..,...e..,. ,.\ ,,. .,.w. ° ,, ° Plug #1 class G: ' °;,,° ''°`°` 3250' to 2600' = 650 ft ~ ^ ~ ;‘;‘ : s ,4,4 % ;°` Caliper Volume = 294 cf . a , . 5 - 4 : c , , e . . . . . ; ; . . . . . ; 294 cf + 15 /o excess - 338.1 cf ~° ° ~W`�;��:•` °�° 0 '°>; 0 ��� 338.1 cf / 1.22 cf /sx = 277 sx 3250' . �:s;s : \:.:° 338.1 cf / 5.61458 cf /bbl - - 60.2 bbl February 23, 2009 Anadarko / Wolf Creek #4 Page 1 of j • Maunder, Thomas E (DOA) From: Maunder, Thomas E (DOA) Sent: Sunday, February 22, 2009 8:47 PM D CA - ���-•� To: Coyner, Skip; tzelenka @blm.gov; tlawlor @blm.gov Cc: Alaska.DrillingOpsMgr; DOA AOGCC Prudhoe Bay Subject: RE: Anadarko / Wolf Creek #4 Skip, et al, This message confirms our conversation of earlier today. I have apprised Commissioner Foerster of your request and she has given her oral approval for you to proceed. We will look for the sundry tomorrow. Call or message with any questions. Tom Maunder, PE AOGCC From: Maunder, Thomas E (DOA) Sent: Sat 2/21/2009 10:16 PM To: Coyner, Skip; tzelenka @blm.gov; tlawlor @blm.gov Cc: Alaska.DrillingOpsMgr; DOA AOGCC Prudhoe Bay Subject: RE: Anadarko / Wolf Creek #4 Skip, Sorry I am a little late with this reply. So long as the deep plugs go in place without problems, it has been the practice to waive tagging them. The tag and pressure test on #4 is appropriate. Have your Rig Supervisor stay in contact with the Inspectors. 1 have forwarded this message to them. Tom Maunder, PE AOGCC From: Coyner, Skip [mailto:Vern.Coyner @anadarko.com] Sent: Sat 2/21/2009 9:17 AM To: Maunder, Thomas E (DOA); tzelenka @blm.gov; tlawlor @blm.gov Cc: stmaunder @aol.com; Alaska.DrillingOpsMgr Subject: Anadarko / Wolf Creek #4 In the (likely) event that Anadarko elects to P & A the well, we propose the attached P & A procedure: «Wolf Creek 4 P & A.ppt» Note: • Plugs 1 through 4 are "bottom founded" • Plugs 1 through 3 will not be tagged • Plug 4 will be tagged & pressure tested • Volumes are based on actual caliper data + 15% in open hole I'll check with you folks later IF we need verbal approval. Of course, I'll follow up with the appropriate Sundry Notices. 2/23/2009 • • Page 1 of 2 Maunder, Thomas E (DOA) From: Coyner, Skip [Vern.Coyner @anadarko.com] Sent: Monday, March 09, 2009 12:21 PM To: Regg, James B (DOA); arcticfox @doyondrilling.com Cc: Maunder, Thomas E (DOA); DOA AOGCC Prudhoe Bay; Todd Driskill; Ron White Subject: RE: Wolf Creek BOPE Test (DoyonAkita 1) • Doyon is replacing the chart recorder • As previously communicated, H2S scavenger was sent to location the same day via aircraft. Skip Coyner 907 - 273 -6305 ofc 907- 440 -6647 cell From: Regg, James B (DOA) [mailto:jim.regg @alaska.gov] Sent: Monday, March 09, 2009 11:51 AM To: arcticfox @doyondrilling.com; Coyner, Skip Cc: Maunder, Thomas E (DOA); DOA AOGCC Prudhoe Bay Subject: RE: Wolf Creek BOPE Test (DoyonAkita 1) I would appreciate a response to my concerns outlined below Jim Regg AOGCC 333 W.7th Avenue, Suite 100 Anchorage, AK 99501 907 - 793 -1236 From: Regg, James B (DOA) Sent: Wednesday, February 25, 2009 2:57 PM To: arcticfox @doyondrilling.com; Vern.Coyner @anadarko.com Cc: Maunder, Thomas E (DOA); DOA AOGCC Prudhoe Bay Subject: Wolf Creek BOPE Test (DoyonAkita 1) AOGCC Inspector witnessed test at DoyonAkita 1 (Wolf Creek #4) on 2/20/2009 and noted several deficiencies. His BOPE Test report is attached. Inspector suggested the 10K psi chart recorder be replaced with a 5K psi chart recorder - recording equipment must be suitable for the range of pressure testing. I consider the 10K psi chart recorder to be a miscellaneous failure that must be corrected. Also, the Operator test report form (template attached) requires a written response when repairs are completed - instructions are included in the test results section of the form. Repairs completed during the normal flow of the test should be summarized in the remarks section of the report and documented as an "FP ". Otherwise, you should send an email when repairs are completed summarizing what was done (repair and retest). In this particular case, Anadarko needs to respond to the following concerns: 4/14/2009 crcc9 • • Page 2 of 2 - lack of mud scavenger materials at location (noncompliance with condition of the permit to drill); - replacement chart recorder. One last item regarding test report - please make sure to send to all addresses listed on the top of the test report form. Jim Regg AOGCC 333 W.7th Avenue, Suite 100 Anchorage, AK 99501 907 - 793 -1236 4/14/2009 1 • • STATE OF ALASKA Reviewed By: OIL AND GAS CONSERVATION COMMISSION P.I. Supry BOPE Test Report Comm Contractor/Rig No.: Doyon AKITA 1 PTD #: 2081940 DATE: 2/20/2009 Inspector Lou Grimaldi f Insp Source Operator: ANADARKO PETROLEUM CORPORAT Operator Rep: Fecketti /French Rig Rep: Huntington /Lupton 1 Inspector Type Operation: EXPL Rams Annular: Valves: Inspection No: bopLG090219222945 t Type Test: WKLY Test Pressure: 250/3000 250/2500 250/3000 € Related Insp No: TEST DATA MISC. INSPECTIONS: MUD SYSTEM: i ACCUMULATOR SYSTEM: P/F Visual Alarm 1 Time /Pressure P/F Location Gen.: P Trip Tank FP P i System Pressure 2950 P Housekeeping: P Pit Level Indicators FP P !Pressure After Closure 2000 P PTD On Location P Flow Indicator FP P i 200 PSI Attained :27 P ;Standing Order Posted P Meth Gas Detector P P Full Pressure Attained 1:35 P Well Sign P H2S Gas Detector P P ' Blind Switch Covers: )oth station P Drl. Rig P MS Misc NA NA Nitgn. Bottles (avg): 6x2300psi P Hazard Sec. P ACC Misc NA Misc NA ' I _..._.. l.... _ _. ,........_.... ._.. ....._...._,._.. _ _...._._ ___. FLOOR SAFTY VALVES: BOP STACK: k CHOKE MANIFOLD: ' Quantity P/F Quantity Size P/F Quantity P/F Upper Kelly 1 P Annular Preventer 1 13 5/8 P No. Valves 14 P Lower Kelly 1 P Pipe Rams 1 4" P Manual Chokes 1 P Ball Type 1 P Lower Pipe Rams 1 4" P Hydraulic Chokes 1 P Inside BOP 1 P Blind Rams 1 Blind P CH Misc 1 FP FSV Misc NA ' Choke Ln. Valves 1 3 1/8 P HCR Valves 2 3 1/8 P Kill Line Valves 1 3 1/8 P Check Valve . 1 3 1/8 P BOPS Misc 0 none NA i Test Results Number of Failures: 4 Remarks: 6 hour test, good procedure followed. 10K chart recorder used to chart 3K test, advised Feketi that 5K would be more appropriate. Casing gauge on super choke inop, repair "OK ". PVT system had probs w/ volumes and flow sensor out of calibration (11% @ 0 flow). Tested H2S and methane sensors in cellar, both tested perfect. H2S measures checked on permit, all required equipment on rig except for H2S scavenger for mud. Informed Feketi to either get scavenger out or apply for waiver by end of day. Pit volumes inaccurate, calibrate "OK. H2S Scavenger • • Page 1 of 1 Maunder, Thomas E (DOA) From: RSC - Arctic Fox Drlg Supv [ RSC - ArcticFoxDrIgSupv @anadarko.com] Sent: Friday, February 20, 2009 10:28 AM To: Maunder, Thomas E (DOA) Cc: Coyner, Skip; Grimaldi, Louis R (DOA) Subject: H2S Scavenger Mr. Maunder, As per this morning's conversation with you, here is a brief follow -up description. • The Wolf Creek #4 was drilled to total measured depth of 3250 feet. • There was not any H2S scavenger product on location but was one Twin Otter flight away. • There was not any H2S encountered during the entire drilling operation. • We are receiving 1 drum of the scavenger product within the hour. • We are currently in the process of obtaining our E -Iog information of the production section. • We are not drilling past 3250. Respectfully, Robert French Wolf Creek Co Rep 907 - 771 -1080 4/14/2009 • 11) From: Maunder, Thomas E (DOA) Sent: Wednesday, February 18, 2009 1:32 PM To: Grimaldi, Louis R (DOA) Cc: Regg, James B (DOA) Subject: RE: Anadarko / Wolf Creek 4 / 208 -194 It looks like they used the test pump to accomplish the test based on the number of strokes. Based on the stroke count and pressure, the inflection appears between 770 and 830 psi with 830 psi being the maximum. As they continue pumping, the injection pressure lines out at 700 psi. After stopping pumping, the pressure declines to 500 psi. They don't provide the spm information so it is difficult to estimate the time it took to get pressure. They calculate using the maximum pressure of 830 psi and get 24.6 EMW. I agree that this number is likely not what should be reported. Based on their numbers there are two pressure values to consider, 700 psi (22.1 EMW) and 500 psi (18.3 EMW). There is no inflection to match the final bleed off pressure (500 psi — 18.3 EMW). Being conservative, that is likely the maximum I would expect the formation to "hold ". Not a lot of absolute pressure margin. Tom From: Grimaldi, Louis R (DOA) Sent: Wednesday, February 18, 2009 12:14 PM To: Maunder, Thomas E (DOA) Subject: RE: Anadarko / Wolf Creek 4 / 208 -194 Is 24.5# realistic at 1000'? From: Maunder, Thomas E (DOA) Sent: Monday, February 16, 2009 9:53 AM To: DOA AOGCC Prudhoe Bay; Davies, Stephen F (DOA) Subject: FW: Anadarko / Wolf Creek 4 / 208 -194 From: Coyner, Skip [mailto:Vern.Coyner @anadarko.com] Sent: Monday, February 16, 2009 7:16 AM To: Maunder, Thomas E (DOA) Subject: Anadarko / Wolf Creek 4 / 208 -194 Weekly Report & LOT «02 -16 -09 Weekly Report.doc» «Wolf Creek 9 625 LOT.pdf» Skip Coyner 907 - 273 -6305 ofc 907 - 440 -6647 cell • • CASING AND LEAK -OFF FRACTURE TESTS Well Name: Wolf Creek #4 Date: 2/14/2009 Csg Size/Wt/Grade: 9 -5/8" 40# L -80 BTC Supervisor: Robert French Csg Setting Depth: 1011 TMD 1011 TVD Mud Weight: 8.8 ppg Leakoff pressure = 830 psi LOT= 24.59 ppg Hole Depth = 1027 and Fluid Pumped= 0.0 Bbls Volume Back = 0.0 bbls Estimated Pump Output: 0.0026 Barrels /Stroke LEAK -OFF DATA CASING TEST DATA Enter Strokes Enter Pressure Enter Strokes Enter Pressure Here Here Here Here -› 0 i 0 .:r, 0 0 -> ' 50 I 50 -> 100 170 100 90 > 200 340 150 160 '••> 300 730 . 200 250 ) '% 0 a 400 1370 4 250 390 . 428 I 1540 -> 300 550 >i .> :5 350 1 680 ' a 375 1517 770' c t ° ' -> 400 830 .> ('‘' -?: > ' 425 Q 790 -> .> 450 l� 720 - 4; —3o 4 475 - -- - 690 > 500 690 } J . . - - Enter Holding Enter Holding Enter Holding Time Here Pressure Here Time Here Pressure Here ,> 0 690 0 1540 1 590 . 4 1 1540 ->, 2 570 y :` 2 1 1530 -r 3 550 •> 3 1530 .a 4 540 -> 4 1530 4. 5 540 ->' 5 1520 a ' 6 530 a - . -> 10 1500 s \0 -> 7 520 > 15 1490 \ ip !� -> 8 I 520 r -> 20 1480 O -> 9 1 510 , ? 25 1460 -- -- - --- --- - - - - -- -> 10 510 .. 30 1440 - , • - LEAK -OFF DATA CASING TEST DATA 3000 2900 2800 2700 - ---- 2600 - - - - - -- - — ---H- ' I I 2500 -- 2400 2300 — — 2200 € 2100 2000 } 1900 I I -- j r [ 1800 1700 a 1600 - 3 1500 IA E 1400 - —� a 1300 1200 1100 ! — 1000 - C 900 800 700 600 - - -- - ; - - - - - -- I - -- - - , 500 ' I 400 — - - - - -- - - - 300 { 200 _ - - -- � - 100 — — - - -- 0 0 100 200 300 400 500 600 Strokes (# of) • LEAK -OFF DATA -0- CASING TEST DATA 3000 2900 - 2800 I -- -- I I I 2700 2600 2500 - 2400 2300 - — 2200 2100 2000 1900 - i 1800 j l 1700 1600 a 1500 a 1400 -- - -- - - - - -- -- -- - II - , - - -- � 1300 1200 — 1100 I. € 1000 900 800 700 600 - 500 _- - -- � I € 400 i I E 300 200 100 0 0 5 10 15 20 25 30 Time (Minutes) MEMORANDUM • State of Alaska 2/1/2008 Alaska Oil and Gas Conservation Commission TO: Jim Regg � 7' It ( �, DATE: 2/2/2009 P.I. Supervisor SUBJECT: Diverter Function Test Doyon Doyon Akita 1 Anadarko Petroleum Co. Wolf Creek #4 FROM: Bob Noble PTD 2081940 Petroleum Inspector Exploratory Operator Rep.: Gary Goerlich Op. phone: 771 -1080 Contractor Rep.: Bob Lupton Rig phone: MISC. INSPECTIONS: ACCUMULATOR SYSTEM: F /P /FP Location Gen.: P Well Sign: P Systems Pressure: 3000 psig P Housekeeping: P (Gen.) DrIg. Rig: P Pressure After Closure: 1700 psig P Reserve Pit: NA Flare Pit: NA 200 psi Recharge Time: 12 sec min:sec P Full Recharge Time: 1 min 20 SE min:sec P DIVERTER SYSTEM INSPECTION: Nitrogen Bottles: 6 @ 2250 Diverter Size: 21 1/4" in. Vent Line(s) Size: 12" in. Vent Line(s) Length: 177 ft. MUD SYSTEM INSPECTION: Light Alarm Line(s) Bifurcated: No Trip Tank: P P Line(s) Down Wind: Yes Mud Pits: P P Line(s) Anchored: P Flow Monitor: P P Turns Targeted / Long Radius: NA Divert Valve(s) Full Opening: P GAS DETECTORS: Light Alarm Valve(s) Auto & Simultaneous: P Methane P FP Annular Closed Time: 22 Sec Hydrogen Sulfide: P FP Knife Valve Open Time: 10 Sec N +- VENT LINE C A WIND M N P ROAD Test's Details The audible H2S and gas alarms sounded the same to me. I electrician told me that they were just close to the same. I told him they're too close and they needed to be changed. They were changed before I left location. The vent line is 177' long, but 95' from a ignition source. The vent line is 12" and the hole is 12 1/4 ". PTD approved exception for ventline diameter smaller than hole size. Total Test Time: Number of failures: 2 Attachments: cc: Diverter Test (for inspectors) BFL 2 -1 -08 Div Doyon Akita 1 02 -02 -09 BN.xls • • February 2, 2009 Mr. Tom Maunder AOGCC 333 W. 7 Ave, Ste. 100 Anchorage, AK 99501 -3539 Re: Anadarko, Wolf Creek #4 Permit No.: 208 -194 Subject: Weekly Up -Date Jan 26 — Feb 1 During the past week, the rig was assembled on location. Drilling crews warmed up the rig and pipe shed. The landing ring was installed on the conductor. The diverter was N/U and tested. The top drive was hung and tested. R/U service company modules and instrumentation. Currently ready for AOGCC inspection which is planned for today. We expect to spud later today pending inspection: February 2 °a , 2009. Skip Coyner Drilling Supt. Anadarko Petroleum Corporation • I J SARAH PALIN, GOVERNOR E OF CI\ s ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 Fred McDougal FAX (907) 276-7542 Drilling Operations Manager Anadarko Petroleum Corporation 3201 C Street, Ste 603 Anchorage AK 99503 Re: Exploratory, Wolf Creek #4 (Re- issue) Anadarko Petroleum Corporation Permit No: 208 -194 Surface Location: 1954' FEL, 1845' FSL, SEC. 9, T1S, R6W, UM Bottomhole Location: 1954' FEL, 1845' FSL, SEC. 9, T1S, R6W, UM Dear Mr. McDougal: Enclosed is the approved application for permit to drill the above referenced exploration well. This permit is reissued due to a change in surface location. 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. 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. At a minimum, openhole gamma ray, resistivity, and sonic or density porosity logs must be recorded from the base of conductor pipe to total depth of the well. 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. When providing notice for a • Wolf Creek #4 Permit to Drill: 208 -194 representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659 -3607 (pager). Sincerely, Daniel T. Seamount, Jr. Chair DATED this 30 gy of January, 2009 cc: Department of Fish & Game, Habitat Section w/o end. Department of Environmental Conservation w/o end. • TEL (907) 563 -951 9 . j ANADARKO PETROLEUM CORPORATION 3201 ° C ° STREET, SUITE 603 • ANCHORAGE, ALASKA 99503 Anadarkt3 Petroleum Corporation AOGCC 333 W. 7 Ave. Anchorage, AK 99501 January 16, 2009 RECEIVE, Re: Anadarko Petroleum Corporation Wolf Creek #4 / APD 208 -194 JAN 1 6 2009 Revised Application for Permit to Drill Alaska Oil & Gas Cons. Commission Anchorage Mr. Maunder, Attached please find Anadarko's Revised Application for Permit to Drill (10 -401) the Wolf Creek #4 located in the NPRA near Puddin Lake. This revised application is submitted for approval in accordance with 20 AAC 25.015 (a) (1) because our "As Built" location is 172 ft from our originally permitted location. The "As Built" location plat is attached. None of the additionally required exhibits have changed from the original, approved APD and are therefore not included with this revised application. We respectfully request approval of our revised 10 -401. As you are aware, we are currently mobilizing the Arctic Fox to location. If you have any questions or comments, please direct them to Skip Coyner at 907 -273- 6305 (ofc), 907 - 440 -6647 (cell). Sincerely, Fred McDougal I C� Operations Drilling Manager RECEIVED STATE OF ALASKA ALAS-• P/OIL AND GAS CONSERVATION COMMIO ON JAN 1 6 2009 - ' PERMIT TO DRILL ZklA 20 MC 25.005 Alaska Oil & Gas Cons. Cnmmicgin , 1a. Type of Work: 1b. Current Well Class: Exploratory 0 , Development Oil ❑ 1c. Specify if well is proposed f (Anchorage Drill 0 Redrill ❑ Stratigraphic Test ❑ Service ❑ Development Gas ❑ Coalbed Methane ❑ Gas Hydrates ❑ Re -entry ❑ Multiple Zone ❑ Single Zone ❑ Shale Gas ❑ 2. Operator Name: 5. Bond: Blanket 0 Single Well ❑ 11. Well Name and Number: Anadarko Petroleum Corporation Bond No. 22014630 - Wolf Creek #4 ._ 3. Address: 6. Proposed Depth: 12. Field /Pool(s): 3201 C Street, Ste 603, Anchorage, AK 99503 MD: 3250' TVD: 3250' < 4a. Location of Well (Governmental Section): 7. Property Designation: Exploratory . Surface: 1954' FEL & 1845' FSL of Sec 9, Ti S, R6W ' AA -86604 • Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 1954' FEL & 1845' FSL of Sec 9, Ti S, R6W US Dept of the Interior: FF095310 2/9/2009 Total Depth: 9. Acres in Property: 14. Distance to Nearest 1954' FEL & 1845' FSL of Sec 9, T1S, R6W 11,350 Property: 7,125 ft , 4b. Location of Well (State Base Plane Coordinates): 10. KB Elevation 7$2, /44 "' 15. Distance to Nearest Well Surface: x- 584114 • y- 5618548 Zone- 5 (Height above GL): 21 feet r /�� Y � 3.9 miles 16. Deviated wells: Kickoff depth: feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: degrees Downhole: 1639 psi at 3250' ' Surface: 1282 psi . 18. Casing Program: Specifications Top - Setting Depth - Bottom Cement Quantity, c.f. or sacks Hole Casing Weight Grade Coupling Length MD TVD MD ND (including stage data) 16" 65# 80' 0' 0' 80' 80' Grouted to surface 12 -1/4" 9 -5/8" 40# L -80 BTC 1000' 0' 0' 1000' 1000' ' Lead: 115 bbl ASL at 10.7 ppg Tail: 23 bbl AS -1 at 15.7 ppg 8 -3/4" 7" 26# L -80 BTC 3250' 0' 0' 3250' 3250' ' 107.3 bbl class G at 15.8 ppg 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re -Entry Operations) Total Depth MD (ft): Total Depth ND (ft): Plugs (measured): Effect. Depth MD (ft): Effect. Depth ND (ft): Junk (measured): Casing Length Size Cement Volume MD ND Conductor /Structural Surface Intermediate Production Liner Perforation Depth MD (ft): N/A Perforation Depth ND (ft): N/A 20. Attachments: Filing Fee ❑ BOP Sketch ❑ Drilling Program ❑ Time v. Depth Plot ❑ Shallow Hazard Analysis ❑ Property Plat ❑ Diverter Sketch ❑ Seabed Report ❑ Drilling Fluid Program ❑ 20 AAC 25.050 requirements ❑ 21. Verbal Approval: Commission Representative: Date 22. I hereby certify that the foregoing is true and correct. Contact S. Coyner.• 273 -6305 1 C- Printed Name Fred McDo or Chuck Rowe Title Drilling Operations Managers, Anadarko Petroleum Corporation Signature 2 _ Phone 907 - 273 -6302 Date 16- Jan -09 Commission Use Only / / �Q.L'�� -al /// Permit to Drill API Number: Permit Approval / 0 � See cover leer for other Number: 208 -194 ' 50- 119 - 20002 -00 , Date: requirements. Conditions of approval : If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales:[ Other: . � C: 1 R5% c % SW ba C3,1\ n■)\_O' \ES\ Samples req'd: Yes[✓] No Mud log req'd: Yes[" No❑ ia VVY"VYrC j 0ikik hoVc acce kAGAD\ H measures: s No❑ r Directional sv ` re Yess No[e a 0 t\ A. La S.® 5 Chi C ad a��t APPROVED BY THE COMMISSION /73a/ DATE: �� / , COMMISSIONER 10-4 evised 12/2005 1 \ . L1 Su� � uPlicate © 77 ii Y // . _ 4 � 5 . 1 p f REV DATE BY CK APP • DESCRIPTION REV DATE BY . APP DESCRIPTION _ ' �Pc� OF q 4 �1 Ii l� n. VD 3! 32 33 34 35 36 31 T ! *: 49 TH i \ * % 6 5 4 3 2 1 6 _ WOLF CREEK i ■ �" N0. 4 J %Kenneth W. Ayers &. 7 8 9 10 II 12 7 /I ( -1,.. I S -8535 .' ,I rt 18 17 16 15 14 13 18 ■ 19 20 / 21 22 23 24 19 I HEREBY CERTIFY THAT I AM A PROPERLY BOUNDARY OF REGISTERED AND LICENSED TO PRACTICE LAND LEASE NO. AA -86604 SURVEYING IN THE STATE OF ALASKA, AND THAT 25 30 29 28 27 26 25 30 THIS DRAWING REPRESENTS A SURVEY MADE BY ME, OR UNDER MY DIRECT SUPERVISION. 3�s 36 31 32 33 34 35 36 l0 to 31 T I S ce cc T 2 S I 6 5 4 3 2 I 6 VICINITY MAP 1 " =2 MILES WOLF CREEK NO.4 40' WIDE PRIMARY SCALE: 1" =200' ROAD NOTES 30' WIDE 1. ELEVATIONS SHOWN / �� . ACC ARE NAVD88 PER 0•••• OPUS SOLUTION. DIVERTER LINE �� '�� \ 2• COORDINATES SHOWN AZIMUTH =315° IN NAD83 AND ., / \ NAD27, LANE ZONE STATE PLANE ZONE 5. / / / / ---..... 3. GEOGRAPHIC COORDINATES ARE NAD83 AND NAD27. / �� / 4. ELEVATION OF WELL / *V, , o' 40' WIDE CELLAR = 711.6 FEET. �� // / SERVICE i / ROAD % C - ...-' PRIMARY WOLF CREEK LOCATION "WOLF CREEK NO. 4" LOCATED WITHIN PROTRACTED LEGEND SEC. 9, T 1 S, R 6 W, UMIAT MERIDIAN. ' 1845' F.S.L, 1954' F.E.L. AS BUILT CONDUCTOR LOCATION NAD83 COORDINATES: LAT= 69'22'02.47" N NAD27 COORDINATES: LONG= 153'21'04.59" W LAT= 69'22'03.93" 0 LOUNSBURY Y = 5,618,269 LONG= 153'20'53.75" & ASSOCIATES, INC. X = 1,724,140 Y = 5,618,548 , SURVEYORS ENGINEERS PLANNERS X = 584,114 1907) 272 -5451 Anadarko a "WOLF CREEK NO. 4" EXPLORATORY WELL CONDUCTOR AS BUILT Petroleum Corporation CADD FILE NO. DRAWING NO: SHEET: REV: WC NO.4 AB.DWG 14 JAN. 09 WOLF CREEK NO.4 AS BUILT 1 of 1 0 • • TEL (907) 563-9519 ANADARKO PETROLEUM CORPORATION 3201 "C" STREET, SUITE 603 • ANCHORAGE, ALASKA 99503 An Petroleum Corporation AOGCC 333 W. 7 Ave. Anchorage, AK 99501 January 16, 2009 RECEIVED Re: Anadarko Petroleum Corporation Wolf Creek #4 / APD 208 -194 SAN 20Q Copy of BML Permit to Drill Alaska Oil & Gas Co ns . Commission Anchorage Mr. Maunder, Attached please find a copy of our Permit to Drill from BLM. This copy is for your records. Please note that for Leak Off Tests, BLM requires that the test be conducted before drilling more than 20 ft of new hole and AOGCC requires that a minimum of 20 ft be drilled. Below our surface casing shoe, we plan to drill as close to 20 ft as practicable and conduct our LOT at that depth. If you have any questions or comments, please direct them to Skip Coyner at 907 -273- 6305 (ofc), 907 - 440 -6647 (cell). Sincerely, /7 d McDougal SL Operations Drilling Manager P S�...of,y or • • o , United States Department of the Interior ,1 �y, p ci5 . a.: =gip �° BUREAU OF LAND MANAGEMENT " "'1 � . Alaska State Office TAKE PRIDE � 4RQ" 3 ,$ 0. 9 222 West Seventh Avenue, #13 INAM ERICA Anchorage, Alaska 99513 -7599 http://www.ak.blm.gov JANUARY 14, 2009 3160(AK932) Wolf Creek 4 Anadarko Petroleum Company Skip Coyner 3201 tr C Street Suite 603 Anchorage, Alaska 99503 Dear Mr. Coyner: Enclosed is the approved Application for Permit to Drill (APD) and Conditions of Approval for Anadarko's Wolf Creek 4 well. The APD and Conditions of Approval must be kept on the drilling site. The approved APD is valid for two years from the approval date. An extension maybe requested if needed. Should you have any questions regarding the attached Conditions of Approval, please contact Tom Zelenka, Petroleum Engineer, at 907 - 267 -1469 or Tim Lawlor, Petroleum Engineer Technician, at 907 - 267 -1442. Sincerely, 1 Greg". Noble Section Chief Branch of Energy and Minerals Enclosures Application for Permit to Drill Wolf Creek 4 (102 pp) Conditions of Approval Wolf Creek 4 (6 pp) • • . Form 3160 -3 FORM APPROVED (August 2007) OMB No. 1004 -0137 Expires July 31, 2010 UNITED STATES DEPARTMENT OF THE INTERIOR 5. Lease Serial No. BUREAU OF LAND MANAGEMENT AA 86604 APPLICATION FOR PERMIT TO DRILL OR REENTER 6. If Indian,Allotee or Tribe Name 7 If Unit or CA Agreement, Name and No. la. Type of work: 151 DRILL ❑ REENTER 8. Lease Name and Well No. lb. Type of Well: ❑ Oil Well Q Gas Well El Other ❑ Single Zone El Multiple Zone Wolf Creek No. 4 2. Name of Operator Anadarko Petroleum Corporation 9. API Well No. 3a. Address 3201 C Street, Ste 603 3b. Phone No. (include area code) 10. Field and Pool, or Exploratory Anchorage, Alaska 99503 (907) 273 -6300 Exploratory 4. Location of Well (Report location clearly and in accordance with any State requirements. *) 11. Sec., T. R. M. or Blk. and Survey or Area At surface 1796' FEL and 1912' FSL of Section 9, T1S, R6W UM Sec 9, T1S, R6W UM At proposed prod. zone 1796' FEL and 1912' FSL of Section 9, Ti S, R6W UM 14. Distance in miles and direction from nearest town or post office* 12. County or Parish 13. State 36 miles to Umiat, Alaska North Slope Burrough AK 15. Distance from proposed* 16. No. of acres in lease 17. Spacing Unit dedicated to this well location to nearest 7192 property or lease line, ft. 11350 640 (Also to nearest drig. unit line, if any) 18. Distance from proposed location* 19. Proposed Depth 20. BLM/BIA Bond No. on file to nearest well, drilling, completed, none 3250' WYB000291 applied for, on this lease, ft. 21. Elevations (Show whetherDF, KDB, RT, GL, etc.) 22. Approximate date work will start* 23. Estimated duration GL= 711' 02/09/2009 80 days ) 24. Attachments The following, completed in accordance with the requirements of Onshore Oil and Gas Order No.1, must be attached to this form: 1. Well plat certified by a registered surveyor. 4. Bond to cover the operations unless covered by an existing bond on file (see 2. A Drilling Plan. Item 20 above). 3. A Surface Use Plan (if the location is on National Forest System Lands, the 5. Operator certification SUPO must be filed with the appropriate Forest Service Office). 6. Such other site specific information and/or plans as may be required by the BLM. 25. Sign. �' Name (Printed /Typed) Date �4111....._ ` i� Fred McDougal or W.0 Rowe 12/15/2008 Title Operations Drilling Manager(s), Anadarko Petr leum Corporation Approved by (Signature) Name (Printed Typed) Date 7 Title Office S1/ ,1 4 ,93 z- Application approval does not warrant or certify that the applilant holds legal or equitable title to those rights in the subject lease which would entitle the applicant to conduct operations thereon. Conditions of approval, if any, are attached. Title 18 U.S.C. Section 1001 and Title 43 U.S.C. Section 1212, make it a crime for any person knowingly and willfully to make to any department or agency of the United States any false, fictitious or fraudulent statements or representations as to any matter within its jurisdiction. (Continued on page 2) *(Instructions on page 2) RECEIVED ULl; 16 2008 Anchorage Field Office . • Bureau of Land Management 3I. CONDITIONS OF APPROVAL TO DRILL Anadarko Petroleum Corporation or - *, .;• ' I. If Wolf Creek 4 NWSE, Sec. 9, T1S, R6W, U. M. (SHL); NWSE, Sec. 9, T1S, R6W, U. M. (BHL) Federal Lease AA- 086604 (At proposed production zone) Drilling Operations Requirements 1. Approval of this application does not warrant or certify that the applicant holds legal or equitable title to those rights in the subject lease which would entitle the applicant to conduct operations thereon. Neither does BLM approval alleviate the operator from the requirements of obtaining any other necessary state or federal permits prior to conducting operations. 2. The operator is responsible for ensuring conformance to the approved APD and Conditions of Approval by the subcontractors. A copy of the approved APD must be onsite during construction, drilling, and completion operations. 3. Drilling operations must also comply with the requirements of Onshore Oil and Gas Order (00GO) No. 2. Deviations from the approved APD require prior approval utilizing Form 3160 -5, Sundry Notices and Reports on Wells. 4. No new hard -banded drill pipe of any type will be rotated inside the surface casing. Hard -band drill pipe will be considered new until it has been rotated in open hole for at least one bit run. 5. You are authorized to use 5M psi Blow Out Prevention Equipment (BOPE) as stated in your APD Drilling Plan and it must meet the requirements of OOGO No. 2, III. A. 2. a. iv., 5M System. All BOPE tests must be performed by a test pump with a chart recorder and NOT by the rig pumps. Tests will be performed using a clear fluid. The BOPE tests must be recorded in the drillers log and will include a low pressure test of 250 psi held for a minimum ten minutes and a high pressure test of 3,000 psi (2,500 psi annular BOP) per OOGO No. 2, III. A. 2. i., and held for a minimum of ten minutes. Remote BOPE controls shall be readily accessible to the driller and shall be capable of both opening and closing all preventers (per OOGO No. 2, III. A. 2. h.) 6. All lines upstream and downstream of the choke manifold will be straight or will have tee blocks or targeted tees and shall be anchored sufficiently to prevent whip and reduce vibration. This includes the blooie line, which shall have its discharge located a safe distance from the wellbore (per OOGO No. 2, III. E.). 7. The surface (9 -5/8 ") casing will be tested to 1,500 psi and intermediate (7 ") casing will be tested to 3,000 psi per the Anadarko APD Drilling Plan. All casing strings will be tested to their required test pressure for 30 minutes. If pressure declines 10% of test pressure in this time period, corrective action must be taken (per OOGO No. 2, III. B. 1. h.). • • , 8. Conductor casing must be cemented from its total depth to the surface either through primary or remedial cementing operations. Surface casing must be cemented from the total depth of the surface hole to the surface either through primary or remedial cementing operations. You will provide sufficient cement volumes to attain the cement heights specified in Anadarko APD Drilling Plan, i.e. conductor (16 ") casing: SA 100' MD /TVD and cemented to surface, surface (9 -5/8 ") casing: SA 1,000' MD /TVD and cemented to surface, and intermediate (7 ") casing: SA 3,250' MD /TVD TD and cemented to surface. BLM cement calculation for 9 -5/8" surface casing showed that 141 sacks of lead slurry cement would be required to reach the surface allowing for 150% open hole excess cement volume. Your indicated cement volume of 122 sacks only provided for 121% excess open hole cement volume. BLM cement calculation for 7" intermediate casing showed that 525 sacks of tail slurry cement would be required to reach the surface allowing for 30% open hole excess cement volume. Your indicated cement volume of 514 sacks only provided for 26% excess open hole cement volume. You will verify all cement heights per your APD Drilling Plan. 9. Centralizers will be run on the surface casing to ensure the casing is centered in the hole during the cementing process. At a minimum, the surface casing shall have centralizers on the bottom 3 joints of the casing (a minimum of 1 centralizer per joint, starting with the shoe joint (per OOGO No. 2, III. B. 1. f.). Additional centralizers shall be placed every four (4) joints to the surface. However, no centralizers will be run above 100 feet from surface to facilitate remedial cementing, if necessary. In addition, the 7" intermediate casing is required to have centralizers on the bottom 3 joints of casing (a minimum of 1 centralizer per joint, starting with the shoe joint). All casing will be rotated and reciprocated during the cementing process, to the extent practicable. 10. The proposed Casing Shoe Integrity Test of the surface casing shoe to the estimated Leak -Off Test (LOT) EMW > 14 ppg as specified in your Anadarko APD Drilling and Completion Plan Summary will be done after drilling out not more than 20 feet of formation per OOGO No. 2, III. B. 1. i. This LOT meets the BLM requirement to perform a pressure integrity test on each casing shoe with the formation tested to a minimum of the mud weight equivalent anticipated to control the formation pressure to the next casing depth or at total depth of the well, per OOGO No. 2, III. B. 1. i. 11. Hazardous substances, as defined by the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) will not be used in the drilling, testing and/or completion operations. No trivalent or hexavalent chromate additives shall be used in the mud system; chromates are banned from use on Federal leases. 12. All shows of fresh water will be recorded in the geologic report and will be cemented behind pipe. All water flows will be reported to the BLM Alaska State Office, Branch of Energy and Minerals on the next business day. Any usable water (TDS < 10,000 ppm) zones must be protected with cement per Onshore Oil and Gas Order No. 2, III. B. and isolated from any fluid (oil or water with TDS > 10,000 ppm) or gas with a potential to migrate. Prior to abandonment, all formations bearing usable - quality water (waters containing less than 10,000 ppm of total dissolved solids), oil, gas, or geothermal resources, and/or a prospectively valuable deposit of minerals, shall be protected (per OOGO No. 2, III. G.; G. 5. and 6., specifically). 2 • • 13. Proposed casing cement volumes will be adjusted based on caliper log results if available, in order to place top of cement at the depths proposed in the application and above all hydrocarbon bearing zones and usable water zones (TDS < 10,000 ppm). 14. This APD is only approved for a drilling Total Depth of 3,250' MD. Any deviations from this depth to a deeper depth will require prior approval before being performed utilizing Sundry Notices and Reports on Wells, Notice of Intent (Form 3160 -5). 15. Approval of this APD does not authorize on -site disposal of drilling mud or cuttings. All waste drilling mud and cuttings will be hauled to an approved processing facility /injection well at existing North Slope operations as stated in the approved APD. Surface Operations Requirements The following stipulations /mitigation measures are project specific resulting from the Environmental Assessment for this project. 1. Provide the BLM Arctic Field Office with a weekly report of activities. 2. Consult with the BLM to develop a plan to reduce the ice thickness of ice drill pads (> 6 feet thick) left in place where underlying vegetation is likely to remain covered during the growing season. 3. Consult with the BLM to develop and implement a multiyear plan to monitor recovery of vegetation beneath thick ice pads (greater than 6 feet thick). The plan shall specify a threshold level of recovery that must be reached within a specified time period. If not met, manipulation to enhance recovery may be required. 4. Cover wellheads left in place to prevent use by ravens, raptors, and foxes (adopted from the 2004 NW ROP E -9). 5. Secure wellhead covering to maintain function and prevent littering. 6. Coordinate with other overland transportation programs to minimize impact to willows in the Anaktuvuk and Colville river valleys. 7. Provide the BLM AO with copies of the lake recharge monitoring reports required by ADNR and the BLM. Future use of the lake water depends on the results of the recharge studies. The following eight mitigation measures implement practices that will help reduce the likelihood of impacts to fish habitat and water resources (Noel et al., 2008). Anadarko shall: 1. At time of ice road construction, take the following measurements at stream or river channel crossings and provide the data to the BLM AO within 1 week of collection. Measure the ice thickness and water depth under ice (if not grounded) at a minimum of three locations (mid - channel, at road midline, and outside boundary of road on each side). 3 • • s 2. Provide the BLM with an as -built of the snow and ice roads, and as -built corner locations for the airstrips and ice pads. Data should be in the format of global positioning system (GPS) points or tracks at the time structures are ready for utilization. 3. Post a sign on the access road to each lake being utilized as a water source, clearly identifying the lake by its number. 4. For each lake utilized as a water source, maintain a daily record of water removed in liquid form and in the form of ice chips. Provide the BLM with this daily tracking record on a weekly basis. The BLM will provide Anadarko with a formatted spreadsheet to be used for the required reporting. The completed weekly spreadsheet should be submitted to BLM within 5 days. 5. Notify the BLM AO within 24 hours if water /ice removal exceeds the volume approved at any lake in the NPR -A. 6. Make possible any compliance checks to be conducted by the BLM for the purpose of checking fish screens on water intake hoses. 7. Notify the BLM AO within 24 hours of any observation of dead fish on intake screens, or in the hole being used for pumping. Temporarily cease pumping from that hole until discussions with the BLM or ADF &G Division of Habitat result in application of additional preventative measures to avoid additional fish mortality. 8. Provide the BLM with photographs documenting breaching/slotting of ice road channel crossings at the end of the winter season. The following additional mitigation measures are required for the removal of ice chips and liquid water in 2008 -2009 in excess of current standard practice. Based on results of the first year's program, the BLM may add, delete, or modify mitigation measure for water use in future years of exploration covered by this EA. Anadarko shall: 1. Submit to the BLM the water uali monitoring data required by ADF &G under State Fish Habitat q tY g re q Permit FH08 -III -0273 and FH08 -III -0278 for Lakes M0825 and M0830 within lweek of collecting in situ field measurements and within 1 week of receiving lab analytical data. Water quality data collected at these lakes under other programs must also be provided to the BLM within 1 week of obtaining the data. 2. At the end of winter operations, conduct snow surveys in the following two drainage basins: the vicinity of the seven lakes utilized in the Wolf Creek area (M0824, M0825, M0826, M0827, M0828, M0829, and M0830); and the vicinity of Lakes M0813 and M0821. Consult with the BLM in developing the methodology, timing, and selection of appropriate locations for these surveys. Provide snow survey data to the BLM within 1 week of collection. 4 • • ' 3. Survey water levels at Lakes M0825 and M0830 in the Wolf Creek area and at Lakes M0813 and M0821 in the NE NPR -A. Document conditions at the outflow with photographs and flow measurements taken: immediately after spring breakup, at the end of June, and at the end of August. At lakes M0823, M0824, M0826, M0827, M0828, M0829, and M0831, document conditions at the outflow with photographs taken: immediately after spring breakup, at the end of June, and at the end of August. Provide data to BLM within 1 week of collection. These requirements apply when the listed lakes are used for water supply. Reporting Requirements 1. Weekly drilling progress reports must be filed with the Alaska State Office, Branch of Energy. These reports must detail operations occurring at the well site including, but not limited to: drilling depths; BOPE tests and results; safety drills and briefings; testing, logging and coring operations; lost circulation zones; fishing operations; over /under pressured zones encountered; and cementing operations. Any verbal approvals must be followed up with a Sundry Notices and Reports on Wells filed with the BLM within 5 days. This applies for both the Notice of Intent and the Subsequent Report, on Form 3160 -5. 2. Subsequent well completion operations will require prior approval before being performed utilizing Sundry Notices and Reports on Wells, Notice of Intent (Form 3160 -5). 3. Within 30 days of completion of the well, a Well Completion and Recompletion Report and Log (Form 3160 -4) must be submitted to the BLM Alaska State Office, Branch of Energy and Minerals. If the well is not completed immediately following drilling and completion operations, the well completion report will be submitted within 30 days of perforating and testing the well. The report should include all information as requested on the backside of the form. 4. Within 90 days of gathering the following information, Anadarko Petroleum Corporation will submit this information to the BLM Alaska State Office, Branch of Energy and Minerals: • Cementing job logs. • Well bore deviation survey. • Geologic report detailing the well history, noting all zones of porosity, and identifying all occurrences of oil, gas, and other minerals of potential geological interest. • All geologic information collected during drilling, testing, and completion operations. This information shall include all analyses from core material. • Well production and pressure test data. • Geophysical and lithological logs. Any electric logs should be submitted in both paper copy and digital format on an 8mm tape, CD -ROM, DVD -ROM, or 3.5 inch diskette. • Well summary report noting stratigraphic identification of geologic marker beds with attendant depths. • Chemical and physical tests of all fluids or gases including API gravity, density, sulfur content, metal content, 13C Isotopes (gases, whole oil and saturates, and aromatics portions), chromatograms, fragmentograms of biomarkers with peak identifications and integrated areas. 5. Any undesirable events are subject to the requirements of NTL -3a- Alaska. 5 • • 6. Flaring of gas will require a separate Form 3160 -5 approval form submitted to this office and is subject to the requirements of NTL -4a. 7. Any solid and/or liquid wastes resulting from the proposed activity shall be properly disposed of as per Onshore Oil and Gas Order No. 7, Disposal of Produced Waters. Notification Requirements: 1. All notifications must be reported verbally to one of the contacts listed below at the BLM Alaska State Office, Branch of Energy and Minerals: Name Position Work Phone Home Cell Tim Lawlor Pet. Eng. Tech. (907) 267 -1442 (907) 563 -1086 (907) 240 -5243 Tom Zelenka Pet. Engineer (907) 267 -1469 (303) 807 -3161 (907) 301 -8972 2. Notify this office verbally at least 48 hours before the well is spud. 3. Notify this office of the actual spud date and spud time of this well. 4. Notify this office verbally at least 48 hours prior to running casing and cementing. 5. Notify the office verbally at least 48 hours in advance of conducting all BOPE tests. 6. Notify the office verbally at least 48 hours in advance of conducting logging, coring and testing. /. /4.09 Thoma . Z nka Date BLM, Petroleum Engineer 6 WELL PERMIT CHECKLIST Field & Pool Well Name: WOLF 4 Program EXP Well bore seg 1 PTD#: 2081940 Company ANADARKO PETROLEUM CORPORATION — Initial Class/Type EXP / UN GeoArea 890 Unit _ On /Off Shore On _ Annular Disposal Lj Administration 1 Permit fee attached NA 2 Lease number appropriate Yes Federal lease AA -86604 3 Unique well name and number Yes 1 4 Well located in a defined pool No Exploratory well 5 Well located proper distance from drilling unit boundary Yes Located near the center of a 6 mile by 3 mile federal lease block 6 Well located proper distance from other wells Yes Nearest well is Wolf Ck Test 1, which is about 4.5 miles to the WNW. ,7 Sufficient acreage available in drilling unit Yes 8 If deviated, is wellbore plat included NA Vertical well 19 Operator only affected party Yes ,10 Operator has appropriate bond in force Yes 11 Permit can be issued without conservation order Yes Appr Date 12 Permit can be issued without administrative approval Yes 13 Can permit be approved before 15 -day wait Yes SFD 1/27/2009 14 Well located within area and strata authorized by Injection Order # (put IO# in comments) (For NA • 15 All wells within 1/4 mile area of review identified (For service well only) NA 16 Pre - produced injector: duration of pre - production less than 3 months (For service well only) NA 117 Nonconven. gas conforms to AS31.05.030G.1.A),(j.2.A -D) NA 18 Conductor string provided Yes Engineering 19 Surface casing protects all known USDWs Yes _ No known USDWs. Surface and production casings cemented to surface. 20 CMT vol adequate to circulate on conductor & surf csg Yes _ 21 CMT vol adequate to tie -in long string to surf csg Yes 22 CMT will cover all known productive horizons Yes 23 Casing designs adequate for C, T, B & permafrost Yes 1 24 Adequate tankage or reserve pit Yes Rig equipped with steel pits. Ice cuttings storagepit planned. Waste to approved disposal well(s). 25 If a re- drill, has a 10 -403 for abandonment been approved NA _ 126 Adequate wellbore separation proposed Yes No proximate wells. 1 . 1 27 If diverter required, does it meet regulations Yes Request to use 12" line with 12 -1/4" hole. Approval recommended. Appr Date 1 28 Drilling fluid program schematic & equip list adequate Yes Maximum expected formation pressure 9.7 EMW. MW up to 10.0 ppg planned. TEM 1/28/2009 1 29 BOPEs, do they meet regulation Yes 130 BOPE press rating appropriate; test to (put psig in comments) Yes MASP calculated at 1282 psi. 3000 psi BOP test planned. R'31 Choke manifold complies w /API RP -53 May 84) Yes 32 Work will occur without operation shutdown Yes 133 Is presence of H2S gas probable Yes H2S not reported in offsets. Rig is equipped with sensors and alarms. - 134 Mechanical condition of wells within AOR verified (For service well only) NA_ ----- - - - - -- 35 Permit can be issued w/o hydrogen sulfide measures No . Geology 36 Data presented on potential overpressure zones Yes Expected pressures are normal (< 9 ppg EMW) to underpressured based on Wolf Ck 1, 3 &3; will be drilled using Appr Date 37 Seismic analysis of shallow gas zones Yes 8.6 to 10.0 ppg mud. No shallow hazards indicated in data. SFD 1/27/2009 ''38 Seabed condition survey (if off- shore) NA 39 Contact name /phone for weekly progress reports [exploratory only] Yes Skip Coyner 907 - 273 -6305 Geologic Engineering Public Re - issue of permit due to 172' change to surface location. SFD 1127/09 Commissioner: Date Commissioner: Date Commissioner Date a4f1/1 /"-- 2147 • Anadarko / Wolf Creek #4 / 10 -401 • Page 1 of 1 Maunder, Thomas E (DOA) From: Coyner, Skip [Vem.Coyner@anadarko.com] Sent: Monday, December 15, 2008 3:12 PM To: Maunder, Thomas E (DOA) Subject: Anadarko / Wolf Creek #4 / 10-401 Attachments: Permit Cover Letter.doc The captioned APD was submitted on or about November 25th. I noticed today that my "cut & paste" skills on the cover letter were not very good. In the last paragraph, there is no 10-403 and the 10-401 is the original (not revised). See attached «Permit Cover Letter.doc» My humble apologies. Skip Coyner 907 - 273 -6305 ofc 907 -440 -6647 cell 12/16/2008 • • AOGCC 333 W. 7 Ave. Anchorage, AK 99501 November 25, 2008 Re: Anadarko Petroleum Corporation Wolf Creek #4 / Application for Permit to Drill Mr. Maunder, Attached please find Anadarko's Application for Permit to Drill (10 -401) the Wolf Creek #4 located in the NPRA near Puddin Lake. Included with our 10 -401 are all required exhibits and a plan of operations. The rig contracted for this well is the Arctic Fox. We plan to drill the 12 -1/4" surface hole using the rig's 21 -1/4" diverter along with its 12" diverter line. We respectfully request an exception to 20 AAC 25.035 (c) (1) (B) to allow us to drill the surface hole using the 12" diverter line. Please note that exceptions were previously granted for this rig and this diverter line. We plan to drill the 8 -3/4" hole with 11 ", 5000 psi BOPE. Based upon DST data from Wolf Creek #3 (3.9 miles away) and seismic pressure predictions, the maximum expected BHP in Wolf Creek #4 will be 1639 psi. The maximum expected surface pressure will be 1282 psi. As such, we respectfully request an exception to 20 AAC 25.035 (e) (10) (A) allowing for testing the BOPE to 3000 psi. The annular preventer will still be tested to 50% of its rated pressure: 2500 psi. Furthermore, we plan to complete and test Wolf Creek #4 in gas bearing zones within the Grandstand formation. After testing, the well will be plugged and abandoned in accordance with AOGCC and BLM regulations. Anadarko plans to use an ice pit to store and freeze cuttings and drilling fluids. This ice pit will be operated and closed in accordance with ADEC and BLM regulations. A separate drilling permit application will be submitted to the BLM. Once granted, a copy of the permit will be forwarded to your office for inclusion in the well file. We respectfully request approval of our 10 -401. The necessary forms and documents are attached. If you have any questions or comments, please direct them to Skip Coyner at 907 - 273 -6305 (ofc), 907 -440 -6647 (cell). Sincerely, Fred McDougal Operations Drilling Manager • ,(1„ ifi JEF SARAH PAL1N, GOVERNOR ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMISSION ANCHORAGE, ALASKA 99501 -3539 Fred McDougal F AX (907) 279-1433 g (907) 276-7542 Drilling Operations Manager Anadarko Petroleum Corporation 3201 C Street, Ste 603 Anchorage AK 99503 Re: Exploratory, Wolf Creek #4 Anadarko Petroleum Corporation Permit No: 208 -194 Surface Location: 1796' FEL, 1912' FSL, SEC. 9, T1S, R6W Bottomhole Location: 1796' FEL, 1912' FSL, SEC. 9, T1S, R6W Dear Mr. McDougal: Enclosed is the approved application for permit to drill the above referenced exploration well. 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. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659 -3607 (pager). Sincerely, t`-.. Cathy :. Foerster Commissioner // -IA- DATED this L (9 day of December, 2008 cc: Department of Fish & Game, Habitat Section w/o end. Department of Environmental Conservation w/o end. 1 STATE OF ALASKA ALlik OIL AND GAS CONSERVATION COM ..,SIGN 401. , , 2 CE+`' PERMIT TO DRILL tc> 20 AAC 25.005 „i ' . -. ,. , , 3SirOl4 la. Type of Work: 1 b. Current Well Class: Exploratory 0 Development Oil ❑ 1 c. Specify if well is proposed for: :..,; Drill El Redrill El Strati ra hic Test Se rvice Development Gas Coalbed Methane ❑ Gas Hydrates 1:1 9 P ❑ Re -entry ❑ Multiple Zone ❑ Single Zone ❑ Shale Gas ❑ 2. Operator Name: 5. Bond: Blanket 0 Single Well ❑ 11. Well Name and Number: Anadarko Petroleum Corporation Bond No. 22014630 ' Wolf Creek #4 • 3. Address: 6. Proposed Depth: 12. Field /Pool(s): 3201 C Street, Ste 603, Anchorage, AK 99503 MD: 3250' • TVD: 3250' • ' 4a. Location of Well (Governmental Section): 7. Property Designation: Exploratory • Surface: 1796' FEL & 1912' FSL of Sec 9, T1S, R6W ` AA -86604 ' Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 1796' FEL & 1912' FSL of Sec 9, Ti S, R6W • US Dept of the Interior: FF095310 2/9/2009 Total Depth: 9. Acres in Property: 14. Distance to Nearest 1796' FEL & 1912' FSL of Sec 9, T1S, R6W • 11,350 Property: 7,192 ft 4b. Location of Well (State Base Plane Coordinates): 10. KB Elevation 15. Distance to Nearest Well Surface: x- 584271 - y- 5618616 - Zone- 5 (Height above GL): 21 feet 3.9 miles . 16. Deviated wells: Kickoff depth: feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: degrees Downhole: 1639 psi at 3250' • Surface: 1282 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) 16" 65# 80' 0' 0' 80' 80' Grouted to surface 12 -1/4" 9 -5/8" 40# L -80 BTC 1000' 0' 0' 1000' . 1000' • Lead: 115 bbl ASL at 10.7 ppg Tail: 23 bbl AS -1 at 15.7 ppg 8 -3/4" 7" 26# L -80 BTC 3250' 0' 0' 3250' . 3250' ' 107.3 bbl class G at 15.8 ppg 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 MD TVD Conductor/Structural Surface Intermediate Production Liner . Perforation Depth MD (ft): N/A Perforation Depth TVD (ft): N/A 20. Attachments: Filing Fee ❑ BOP Sketch 0 Drilling Program 0 Time v. Depth Plot 0 Shallow Hazard Analysis 0 Property Plat 0 Diverter Sketch 0 Seabed Report ❑ Drilling Fluid Program 0 20 AAC 25.050 requirements ❑ 21. Verbal Approval: Commission Representative: Date 22. I hereby certify that the foregoing is true and correct. Contact S. Coyner.• 273 -6305 46___... Printed Name Fred McDougal or Chuck Rowe Title Drilling Operations Managers, Anadarko Petroleum Corporation Signature Phone 907 - 273 -6302 Date //2S/2 Commission Use Only Permit to Drill Z© /p API Number: ! � Permit Approval See cover letter for other Number: 7 50- �� Date: Tta (u requirements. Conditions of approval : If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales:[✓ Other: 30Q00 sir'∎ rCm- .... \ y a500 Q9i tkrcv l \cs.t " Samples req'd: Yes No El Mud log req'd: Yes[ No❑ VZk "3, A V , t y vaa�.�n`� OS C . ` 0 k ( H measures: Yes[' No❑ Directional svy req'd.Yes❑ No[� 1 A jt,n4 ,fa o►s.. 4 4-u/e l mart/ rC�C •A rt.. A .02 aon.p.c,a soo 35<‘ / r AP BY THE COMMISSION DATE: /Z.-1 ) ' , COMMISSIONER Form 10-401 Revised 12/2005 (e) r°• -. r ,-N 1 N I A L / Submit in Duplicate , a, //..y& ! a. is-.. p8 Anadarko / Wolf Creek #4 / 10 -401 . Page 1 of 1 I Maunder, Thomas E (DOA) From: Coyner, Skip [Vern.Coyner @anadarko.com] Sent: Monday, December 15, 2008 3:12 PM To: Maunder, Thomas E (DOA) Subject: Anadarko / Wolf Creek #4 / 10-401 Attachments: Permit Cover Letter.doc The captioned APD was submitted on or about November 25th. I noticed today that my "cut & paste" skills on the cover letter were not very good. In the last paragraph, there is no 10-403 and the 10-401 is the original (not revised). See attached «Permit Cover Letter.doc» My humble apologies. Skip Coyner 907 -273 -6305 ofc 907 -440 -6647 cell 12/16/2008 • AOGCC 333 W. 7 Ave. Anchorage, AK 99501 November 25, 2008 Re: Anadarko Petroleum Corporation Wolf Creek #4 / Application for Permit to Drill Mr. Maunder, Attached please find Anadarko's Application for Permit to Drill (10 -401) the Wolf Creek #4 located in the NPRA near Puddin Lake. Included with our 10 -401 are all required exhibits and a plan of operations. The rig contracted for this well is the Arctic Fox. We plan to drill the 12 -1/4" surface hole using the rig's 21 -1/4" diverter along with its 12" diverter line. We respectfully request an exception to 20 AAC 25.035 (c) (1) (B) to allow us to drill the surface hole using the 12" diverter line. Please note that exceptions were previously granted for this rig and this diverter line. We plan to drill the 8 -3/4" hole with 11 ", 5000 psi BOPE. Based upon DST data from Wolf Creek #3 (3.9 miles away) and seismic pressure predictions, the maximum expected BHP in Wolf Creek #4 will be 1639 psi. The maximum expected surface pressure will be 1282 psi. As such, we respectfully request an exception to 20 AAC 25.035 (e) (10) (A) allowing for testing the BOPE to 3000 psi. The annular preventer will still be tested to 50% of its rated pressure: 2500 psi. Furthermore, we plan to complete and test Wolf Creek #4 in gas bearing zones within the Grandstand formation. After testing, the well will be plugged and abandoned in accordance with AOGCC and BLM regulations. Anadarko plans to use an ice pit to store and freeze cuttings and drilling fluids. This ice pit will be operated and closed in accordance with ADEC and BLM regulations. A separate drilling permit application will be submitted to the BLM. Once granted, a copy of the permit will be forwarded to your office for inclusion in the well file. We respectfully request approval of our 10 -401. The necessary forms and documents are attached. If you have any questions or comments, please direct them to Skip Coyner at 907 - 273 -6305 (ofc), 907 -440 -6647 (cell). Sincerely, Fred McDougal Operations Drilling Manager • • TEL (907) 563-9519 ANADARKO PETROLEUM CORPORATION 3201 "C" STREET, SUITE 603 • ANCHORAGE, ALASKA 99503 Anada,, ,2 Petroleum Corporation AOGCC 333 W. 7 Ave. Anchorage, AK 99501 November 25, 2008 Re: Anadarko Petroleum Corporation Wolf Creek #4 / Application for Permit to Drill Mr. Maunder, Attached please find Anadarko's Application for Permit to Drill (10 -401) the Wolf Creek #4 located in the NPRA near Puddin Lake. Included with our 10 -401 are all required exhibits and a plan of operations. The rig contracted for this well is the Arctic Fox. We plan to drill the 12 -1/4" surface hole using the rig's 21 -1/4" diverter along with its 12" diverter line. We respectfully request an exception to 20 AAC 25.035 (c) (1) (B) to ✓ allow us to drill the surface hole using the 12" diverter line. Please note that exceptions were previously granted for this rig and this diverter line. We plan to drill the 8 -3/4" hole with 11 ", 5000 psi BOPE. Based upon DST data from Wolf Creek #3 (3.9 miles away) and seismic pressure predictions, the maximum expected BHP in Wolf Creek #4 will be 1639 psi. The maximum expected surface pressure will be 1282 psi. As such, we respectfully request an exception to 20 AAC 25.035 (e) (10) (A) allowing for testing the BOPE to 3000 psi. The annular preventer will still be tested to 50% of its rated pressure: 2500 psi. Furthermore, we plan to complete and test Wolf Creek #4 in gas bearing zones within the Grandstand formation. After testing, the well will be plugged and abandoned in accordance with AOGCC and BLM regulations. Anadarko plans to use an ice pit to store and freeze cuttings and drilling fluids. This ice pit will be operated and closed in accordance with ADEC and BLM regulations. A separate drilling permit application will be submitted to the BLM. Once granted, a copy of the permit will be forwarded to your office for inclusion in the well file. We respectfully request approval of our 10 -403 and our revised 10 -401. The necessary forms and documents are attached. If you have any questions or comments, please direct them to Skip Coyner at 907 - 273 -6305 (ofc), 907 - 440 -6647 (cell). Sincerely, 11 111111ft h Fred McDougal Operations Drilling Manager I Lease and Location Plats • 0 1 r ' 7 J p , _ qt Y/ P °k , -,.,_. I �1 _ � '�l► . .r ; .v 1, • ,.. , . ,., 1 kilirrll • ,. • s �� f ,..... ., IfC y w`*� i ,�, _ _" 5 . `i+�'*^ -- ;,_,., ♦ - - ♦ 'TM� I 1 - 13 � ' 1 !7 1 8 15 �- * i f 41 -, ,. -.fit U001 "500 .e .. . s e . -- i _ . `ti. _ 1 �. _ t . , � N. . � � y ' 4. w A' Y4 !+- - /... 24 f+ 220`ti �. 2:1 - r 4--- } ....". r - a„* *`..,,,mss :. (588 , Inv.. , ,„ . _ .r'� j f / r ;111. 26 '" (5 ! -.` • :` t f T _ _ Puddin Lake +. , Staging Base . ,/ - _ _ l `� 31 - 4 `ro __ 36 32 , ; }33;,r' 34 _ r __ .'' - _ --) v II . .... ..____ „........: .......___.) __. . 1....„...•••• • i .... _ • _ 4. „6,.. _ ___ . . aft %1/4 Drill Site (NAD83) Wolf Creek 4 Drill Site Drill Site (NAD27) 69.3675° - 153.3500° 1796' FEL & 1912' FSL 69.3679° - 153.3470° Section 9 T1 S R6W 0 0 4n P etroleum Corp Wolf Creek Lease , , r,._ (391 32 ( 33 31 3 5 36 3 1 \ [639) I f \ .1 I t 2 r.1' .... (581) _ _ __�_ t (581; 1 1 1 Wolf Creek 4 12 ( 7 ;; ; 11 ! 12 �.. 7 8 i I ....._ ___ f.. 13 18 17 16 15 14 13 18 (58E) (586 f 24 (� a 20-- 21 22 23 !;24 19 1 ! 1 Ii , f ,F 30 7F1 ( 28 27 26 2 5 �n Lease No.: AA -86604 North half of the Township: 11,350 acres Sections 1 thru 18, T1 S, R6W, UM REV DATE BY CK APP DESCRIPTION REV_ DATE BY APP DESCRIPTION I 9 -16 -08 SAS MOD! SECTION LINE CALL 2 9 -26 -08 SAS MODIFY SECTION LINE OUTS CALL OUTS N 5 4 3 I 2 NOTES 1 1. ELEVATIONS SHOWN ARE NAVD88 PER WCA -4LL OPUS SOLUTION. _ 8 9 10 II 2. COORDINATES SHOWN IN NAD83 AND NAD27, ALASKA STATE PLANE ZONE 5. SCALE: 1" =200' 3. GEOGRAPHIC COORDINATES ARE NAD83 AND NAD27. 17 16 15 14 4. ALL DISTANCES ARE TRUE. — 100 DENOTES SPILL TRAJECTORY 3 -0 STAKED CONDUCTOR LOCATION CO _ 20 21 22 23 Z WCA -4LL a 1 T 1 SOUTH rr — 6 82— VICINITY MAP ss4 a9— 1" = APPROX. 1 MI. � n', (v r 189 , �/° � °' 689 � . 9 1 x PRIMARY WOLF CREEK f 9 _ a LOCATION "WCA -4LL" ° LOCATED WITHIN z6�69 V°- 4-_._ 30' WIDE PROTRACTED � _ � to - - ,�_ 1 R SEC. 9, T 1 S, R 6 W UMIAT MERIDIAN. � co S o t o ' r ___/ 7---- 77 O._, sol 1912' F. S. L, ° �_ 1796' F.E.L. ,- " \ ti y � .. � '� `0� BO ° -. NAD83 COORDINATES. DIVERTER �� UNE o`� I 7tr ��, LAT =69 °22'03.12" N y0y � o� �:11 � / 00009' g ° ti ti ° Q ► ....> / ! } ��� X D 1,724,297 � ti iit � � r � ' _ 6;0 NAD27 COORDINATES: 6,' o"- _ ,. LAT =69 °22'04.59" N z:- ( --„ N ?d $ot /' LONG= 153 °20'49.35" W c \ \ ° rn ''a was tot 695 Y = 5,618,616 s.. / r=/ 9q. X = 584,271 ' � , `i ;0° 2 0 . - x _ 9 s` r.' � s�s w= �- \ \ 694 eT� LOUNSBURY `+ \�s� ep,o 6,5f',,, = & ASSOCIATES, INC. 3 t SURVEYORS ENGINEERS PLANNERS `'° "�- �i"`68 \ (907) 272 -7787 "WCA -4LL" EXPLORATORY WELL A nadarko A S STAKED EXHIBIT WITH PAD CONFIGURATION Petroleum Corporation INCLUDING CONTOURS AND SPILL TRAJECTORY CADD FILE NO. DRAWING NO: SHEET: REV: WCA- 4LL.dwq 12 SEPT. 08 WCA- 4LL.dwq 1 OF 1 2 Hazard Assessment • Wolf Creek 4 Drilling Hazard Analysis The Pre -Drill seismic pressure analysis for Wolf Creek 4 predicts normal formation pressure (< 9 ppg) down to a depth of +/- 3100'. That prediction was derived by using the A t seismic data and adjusting it to fit the empirical data from Wolf Creek 3 drill stem tests. Based upon this data and actual mud weights used to drill Wolf Creek 3, the Wolf Creek 4 well can be drilled to the proposed total depth of 3250' without the need for mud weights or ECD's that exceed the limit of the surface casing shoe and /or BOPE. Good offset data is available in the Federal Governments drilling and geological reports from their Wolf Creek wells: 1 — 3. Wolf Creek 3 actually drilled through Anadarko's planned objectives including the Lower Grandstand formation. Several zones were ✓ tested and all had sub - normal formation pressure. The best and deepest test of value was DST #6: 2088'- 2076'. This test flowed 258 MCFPD and the SIBHP was 850 psi. The resulting BHP gradient was 7.87 ppg EMW. This DST was used by Mr. James Lang to calibrate his seismic pressure predictions. In addition to the seismic formation pressure predictions, Mr. Lang used the Wolf Creek 3 resistivity log to predict pressures as well. That "Resistivity" Prediction" (curve) does not match the seismic prediction nor does it match the empirical data from Wolf Creek 3. It should also be noted that the "Resistivity Predictions" in the Gubik/Umiat area likewise do not match the empirical data from our recently drilled Gubik 3. As such, the pressure increase predicted by the resistivity method below 3100' in Wolf Creek 4 is duly noted but is highly suspect. Anadarko is cognizant of this possible pressure increase, however since the predicted resistivity pressure exceeds the mud weight used to drill Wolf Creek 3, Anadarko discounts this prediction and will rely more heavily upon the seismic prediction of formation pressure and empirical data. All that being said, Anadarko plans to set production casing based upon the earliest indication of a pressure increase or at 3250': which ever occurs first. The predicted formation pressure increase at the base of the Grandstand formation is the only predictable drilling hazard in the well. Wolf Creek 3 drilled by the Navy years ago gave us good offset data and drilling records. The government's data shows no hole problems or abnormal pressure in any of their Wolf Creek wells: no hydrates, no shale problems, no sticking, etc. In fact the Navy cut many cores (42), conducted many drill stem tests (12) and made numerous bit trips all without incident. Based on this data and the seismic pressure prediction, Anadarko believes that when drilling Wolf Creek 4, the exposure to drilling hazards will be minimal given the planned TD of < 3250' (see attachments and analysis by James Lang & S. Coyner) I 1 Wolf Creek 4 ll.. PP dt Seis Avg WC #4 Geo- Mechanical i Plot , k ._ 9 -510" 500' - ......, _.. t 1 DST " (I?S)31Pt (Wolf OmiAiTatg t) Ilk t " - (D5J30DFt (flffC�e4Tat) . am a06 Wc,k ( D S ) NI (Wo'Creek iti Tart) 1 , , \ -FGist (RE T t) , l iia3.0G(ffzea;sTgef) Mill 1000 7thfCttei#tiT LI , in ) t 1111 E t ' MW WC #3 (DS) +300 Ft NA —41------; —,01 1500 \NI Fjjjj#4 Imounimm 11111 . ,,. ,:.., , 1 PP Res WC #3 (DS) 300 Ft 000' .�' i — IA r _ I WC 3 DST h wand fi :.� Data t t OBG Est WC #4 2500' -. iii IIIII WC #3 DST, MW and Res PP have been I Depth Shifted 300 Ft. deeper based on correlation with the WC #4 Target. I 1 11111 I 1 - 11111111 3000 "" 1 III liiinlii t,1 III I i N. .... !I A__ _ y MI 1 1+ vrD ` t 110111. ` 4 M iiiii 111 W < 9.6 pp9 . . 5 pp9 10 ppg 15 ppg 20 pp9 25 ppg • • Geophysical Pore Pressure & Frac Gradient Predictions 0 . ,, .„.,, „,,, . ' ' p gj lit , I! ..' , -,- ..... .....`1: ' 1 ,„,„ . • • ,4::::„*„.,„ , ...„ , ,, . .. , .,,, , 1 a . ,,,„.„,...,„_„._ ,,,,„„„___„„... ,,,,,,,,,,„ , ,, „, ,..,, „,..„,„„, , .,,, ,....,_„_„„,...„ „.„., ,,,,,,,,,,,„.„,,,,„, ..., „ fir_ ,, 11 ,.,..., ..,,,„,,,,,, , ,,...,, .,,„,„„„:„„. i� ai) 0 1 6.1 (0.) te_...., i ii U I i i: is 0 is iia. C) 0 i U. E 0 < N co oz) O CU i UJ N Q N I- N O W ` U L E O Q Alaska Foothills — Regional Offset Wells Base Map 111101111 I 13 km 69°50' - 69°40 0 69°30 1 Gl+ UNIT I1 %GU IK 2 GUBIK 3 olf Cr ek #3 SEABEE 1 69°20'1 olf Cr:: ar • et 69°10' 1 1 I • I I BIG BEND • °' III 111111 a 7 6900 I I - 153°4959" -153°30' -153°09'59" -152°4959" -152°30' -152°0959" -151 -151°30' Anadaricip2 Alaska Foothills — Wolf Greek #4 Base Map File Vlew Horizons Faults Mapping Contours Wells Hel ail 5 ■ Qf % �. 2.1 � l C Gubik #3 it - 46 miles East 0:)n h �. _pi Start o loop ' yr , / a . - • • • Wolf Creek #3 /' a. • • ' • • — - «hfj_ Q ,,, ► om. ., , .' A pproximate Location Wolf Creek #4 / SOW: UHF: SPN: )F V: Z: NNZ: A &0.: i' -:At 6' naciaiirp m S V'T If Creek a r � � �� Section Wolf Creek #3 Wolf Creek #4 6 Sk 0.. ...5 "2 pCP ..7 , k .a � "(c . "t ' 4 t ''S� �2t ?tl�' a 3 t i,1 ws b, � + W ^ .eM.:�> . a �A . t etre �A -. a 'Y `�*^, - i ` x<�. � %a ', a �. " •i � 4 1b ska'• � ; �4f t a a � �t >k fi�rt` � � 2 � � � ,� �' Y . . "K. � r y e �! a W, 1 2 t lS y a .J ' �^ � � a ` l -`� � "� ! 1> d I F t{ 4 . ) t � ,p 1 t fie., jt , ',+�t 1 t �t 1 ii Afzift,,41 s . 40 4 v� N � , i ? 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' !'il'itttitiliAllit i .x � ,, , 7�`.^ na� ez lz t fz: :* „,s {> i ' �i f { t l a w 7 .W i Ilit 1 181 (1n(}- {, f < if t + A S 13 i a .. . ;,r a �_�C 1 44 4, aiiekls,k,i3 .e A 1 ‘ ,- 14 kt. 1 lir ;.til„ , i ,, ill NS:, ' 'Asiiiii t iUl 1 i14 , ilS i @ .4 0 "At , c „,,u, • 1 , .,,,,„ ,. 40r. , ilillAltat., 4.4414 rsi ,Itoe,(4(..4,4: 0. T,.,,.AL 11, c. i , it 1,0 i I:„ 11 /14 1414 ? ' ' -. '2 t IN 11 1 SI (T,Afiv , l, . 0 Is kii i tl . 1 ,- foiz Or si VA.NrirAZioV017-eRolittoW 5U0 t �� k 7 4 s dpi,)`. ,. , �' 1 514;,' 40:1Apiadarife2 dt Comparison Wolf Creek ##3 to #4 Target Wolf Creek t4 Target - Seismic PPFG ' , ject Name: Alaska Wolf Creek #4 ' reject Analyst: James Lang Nioudac, October 13, 2008 ■ ! — — 1 j PP dt Seis Avg WC #4 1 OB C #4 t� i f ' , J L [ _ - .3 VS 3.A Ft 1 olfCosi *l anal? �. —Y A we +�5 3i F a aif Creak as T vei 1 ;, _ . - + . 4 _ . _.YOBS$ as t3 TS) i,,��fCTargr FG WC #4 t,' ...__ _ �OHG Eft fio. "C wk *tZas;n r-. 0 . ∎r 1101 M 1 TTaw) [. 1 G E atf rack 3& saisar Rolf Cat *3', i 000 t , _ 1000 p — ' — PP & 43 A4 C111 o f Creel *4 :AV) # t IIN I _ _... ,x ,. C MW W > �.__ d 1 #3 I s it >:. -- ; (DS) +300 Ft _ f _... .. �/y j f tea. M.,.M,.. ,. «, ,. c I I— / - -di : �,1? :.VoHGed,.4Ta.,_tt- — - d ¢gyp 238b (Wolf C Ir sari .1 i � E - &cdp 2383 (Wolf :aeek..T ea 4 00 i . tip 3216 Molt c :rak Trpt; I - -e& cdp (Wolf :reek z Tnpt;. � C __.._ ? -_ cdpai €SLoL' aa5 T: at _, ,.. g - { 3000 s r • PP Res I. 3 3500 I t j d . �...... .. _.. d d ._...._._ ,:.. I ... f S K^ Asniadarliquo WC #3 DST, MW and Res PP have been Depth Shifted 300 Ft. deeper based on correlation with the WC #4 Target. Wolf Greek #3 1D Analysis Wolf Creek #3 - Resistivity PPFG Project Name: Alaska Wolf C'teek #4 10 -13 -2008 Project Analyst: James Lane Monday, October 13, 2008 0 -- --- 0 mill ®� _ ,_ I T Mal i � i _ iiii�t�i•i1il _ � - . 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Coyner EXPLORATION OBJECTIVES FOR WELL: 1. Drill surface hole & set 9 -5/8" casing at +/- 1000' 2. Drill the Grandstand formation with minimal overbalance 3. Drill to casing point below the base of the Grandstand: 3250' • 4. Run E -Line Togs through the Grandstand formation . 5. , Set & cement 7" production casing at 3250' 6. Run the 3 -1/2" completion as directed. 7. RU Test Equipment. Perforate and test the well as directed. 8. After testing, P & A the well as directed. 9. De- Mobilize the rig, test equipment and camp. HSE OBJECTIVES FOR WELL: • No Lost time Accidents. • No Spills. • No environmental impact. • Drilling Program 2009 November 2008 1 • Well Name: Wolf Creek #4 Drilling and Completion Plan Summary Type of WeII: Vertical Drill, Complete, Test, Plug and Abandon Surface Location: 1796' FEL & 1912' FSL Section 9 T1S R6W UM NAD 27 X = 584,271' . Y = 5,618,616'. Bottom Hole Location: 1796' FEL & 1912' FSL Section 9 T1 S R6W UM NAD 27 X = 584,271' Y = 5,618,616' Est Start Date: 2/9/2009 Drilling Rig: Arctic Fox Drilling days: 27 Completion -Test days: 43 TMD: 3,250' TVD: 3,250' . Pad Elev: 713 DF: 731 Objectives: Nanushuk, Grandstand i Telephone Contacts: (Anchorage Office: 907 - 273 -6300, Fax: 907 - 563 -9479) Anchorage Name: Position: Office No.: Cell No.: Skip Coyner Drilling Supt. 907 - 273 -6305 907 - 440 -6647 Chuck Rowe Drilling MNGR 907 - 273 -6302 907 - 242 -7131 Fred McDougal Drilling MNGR 907 - 273 -6302 713- 819 -6437 Ole Theil Supply Chain MNGT 907 - 273 -6303 907 - 242 -7132 Duane Greenley Supply Chain MNGT 907 - 273 -6303 907 - 242 -7132 Todd Driskill Doyon Supt. 907 - 565 -4249 907 - 223 -0537 Doyon Drilling Main Office 907 - 563 -5530 907 - 561 -8986 Casinq & Tubing Program: (see attached wellbore diagrams) Size & Type Top Shoe FTG Hole Burst Drift TOC 16 ", 65 #, H -40, PE /B GL 100' 100' 24" 1640# 15.062" Surf 9 -5/8 ", 40 #, L -80, BTC Surf 1000' 1000' 12.25" 5750# 8.679" Surf' 7 ", 26 #, L -80, BTC -M Surf 3250' 3250' 8.50" 7240# 6.151" Surf' 3 -1/2 ", 9.2 #, L -80, IBT -M Surf TBD TBD 10160# 2.867" Wolf Creek 4, WBM 2 November 2008 • Mud Program: The mud program for this well includes water -based spud mud in the surface hole and KCL- Polymer mud in the production hole. The KCL - Polymer mud is designed to yield maximum hole stability and minimal formation damage. The MW should be < 9.0 ppg down to +/- 2800'. Hole conditions may require 9.5 ppg to TD the well at 3250' and 10.0 ppg to trip safely for logs, etc. As always, adjust the MW as dictated by hole conditions. Watch for kicks, sloughing shale, fill, drag, torque, gas, etc. At the first sign of increased pore pressure and /or hole problems, be prepared to stop drilling. Surface Hole: Properties (12 -1/4" Hole Surf to 1,000' MD) Mud Density pH FV YP PV API W/L Properties (ppg) (cc's /30 min) Initial 8.6 9.0 — 9.5 > 150 40 - 60 20 -30 < 12 Casing Point 8.6 — 8.8 9.0 — 9.5 60 - 80 25 - 45 25 -35 < 10 Production Hole: Properties (8 -3/4" Hole 1000' to 3,250' MD) Mud Density CI K+ API W/L Properties (ppg) pH YP PV ppm ppm (cc's /30 min) 1000' 8.6 — 9.0 • 9.0 — 9.5 18 -25 10 -16 30,000 30,000 < 6 2800' 8.6 — 9.0 9.0 — 9.5 18 -25 10 -16 30,000 30,000 < 6 3250' 9.5 — 10.0 • 9.0 — 9.5 18 -25 10 -16 30,000 30,000 < 6 Bit Program: Interval Size Type Ftg Hrs ROP RPM WOB Surf — 1000' 12 -1/4" MXL -1X 1000' 40 25 80 -180 10/50 1000' — 3250' 8 -3/4" PDC 2250' 28 80 120 -220 10/25 Formation Markers: Formation Tops MD TVD Chandler Fm 770' 770' • Base Permafrost +1- 850' +1- 850' 9 -5/8" Casing 1000' 1000' Upper Grandstand 1855' 1855' Lower Grandstand 2205' 2205' 7" Casing Point 3250' 3250' Top Torok 3900' 3900' Wolf Creek 4, WBM 3 November 2008 • Surveys & LWD: Survey Program: Survey While Drilling: From the surface casing shoe to TD, survey the hole every 120' (or with the MWD tool. Surface Hole Section: 12 -1/4" Open Hole: MWD /LWD: MWD only E -Line: Quad -Combo w/ caliper Cased Hole: E -Line: none Production Hole Section: 8-3/4" Open Hole: MWD /LWD: GR / RES / DEN / NEU / MWD E -Line: Quad -Combo w/ 6 -arm caliper MREX (or equiv) Percussion and /or Rotary Sidewall Cores Repeat Formation Tester (MDT) Cased Hole: E -Line: USIT (CBL) in the 7" Casing (bond & correlation) Cementing Program: 9 -5/8" Intermediate Casing at 1,000': Hole Size: 12 -1/4" Casing Size: 9 -5/8" Basis for Volume Based on 1000' of annulus Open Hole excess is 150% (if caliper log is run: Calculations: use caliper + 50 %). 85' shoe track. Slurry Volumes: Lead: 122 sx (94 BBL) ArcticSet Lite mixed at 10.7 ppg, 4.33 cf /sk Tail: 220 sx (36.5 bbl) ArcticSet 1 mixed at 15.7 ppg, 0.93 cf /sk 7" Intermediate Casing at 3,250': Hole Size: 8 -3/4" Casing Size: 7" Basis for Volume Based on 2250' of open hole annulus and 1000' of cased hole annulus. Calculations: TOC of cement to be at surface. Open Hole excess is 30% (use caliper + 15 %.) 85' shoe track Slurry Volume: Tail: 514 sx (107 bbl) class G mixed at 15.8 ppg, 1.17 cf /sk Wolf Creek 4, WBM 4 November 2008 • • Casing Shoe Integrity Tests: Test Point: 1050' Test 9 -5/8" Shoe + 50 ft Test to Leak Off EMW > 14 ppg Well Control: The 12 -1/4" surface hole will be drilled using the rig's 21 -1/4" diverter package which includes 12" ID diverter line will be assembled in accordance with AAC 25.035 (c) (2). The use of the 12" diverter line requires an exception to AAC 25.035 (c) (1) (A) and (B). The production hole will be drilled with well control equipment consisting of 5000 psi working pressure pipe rams(2), blind rams, and an annular preventer capable of handling maximum potential surface pressures. Test the BOPE with water. • Recorded DST BHP at 2076' in Wolf Creek #3 = 850 psi = 7.87 ppg EMW • The seismic derived A t ore pressure gradient is : 9.7 at 3250' p p 9 ppg • Maximum anticipated BHP: 3250' x .052 x 9.7 ppg = 1639 psi • Maximum anticipated Surface Pressure: 1639 psi — (.11 psi /ft x 3250') = 1282 psi • • BOPE Test pressure: 3000 psi • Annular Test Pressure: 2500 psi (50% of the rated pressure) • Test all BOP components to 250 psi before the high pressure test. • Test BOPE every 7 days as per AOGCC regulations. • Notify the AOGCC field inspector 48 hours prior to testing BOPE: 659 -3607. • The BLM field inspector can be reached by calling: (907) 240 -5243. H2S: This is an exploration well, therefore H2S monitors will be used at all times and 30- minute air packs will be available. H was not reported in offset wells. ✓ Disposal: • Cuttings Handling: Cuttings and drilling waste from these operations will be hauled to Prudhoe Bay's G & I plant on DS-4 and /or 1R-18 for disposal. • Cuttings and drilling waste will be transported in cuttings bins and properly secured. • Use proper Waste Manifests signed by "Red Book" certified personnel only. • A cuttings pit will be used in accordance with ADEC guidelines and our C -Plan. After freezing the cuttings and fluids, they will be transported via Tundra Bear and /or rolligon to G & I in Deadhorse. Wolf Creek 4, WBM 5 November 2008 • Wolf Creek #4 2009 DRILL and COMPLETION PROCEDURE Pre -Spud Check List • Ensure that HSE and ACS personnel, equipment, signs, etc. are in place. • Ensure communications are up and running: satellite, cellular and radios. • Ensure the AOGCC and BLM permits are in order. • Ensure all training requirements have been met: NSTC -NPRA, IADC well control and confirm with APC HSE that all other APC required training has been done. • Hold a pre -spud drilling and safety meeting with all wellsite personnel. • Notify AOGCC & BLM 48 hours prior to commencing operations. Start -Up Operations Overview: • Set 16" conductor + 100' below mat level. Install insulated cellar: 8 ft OD x 7 ft ID • MI and RU the Arctic Fox • N/U the diverter and diverter line per AOGCC regulations: bearing 315 to 360 azimuth. The average wind direction at Umiat last year was 270 ° . • P/U sufficient drill collars / pipe to drill to the surface casing point at 1000'. • Prepare spud mud. • Test the rig components including the diverter system • Conduct AOGCC /BLM field inspection. Start -Up Operations Program: 1. AFC will set the 16 ", 65# conductor 80 — 100 ft deep and cement same using Schlumberger's mixer. AFC will also drill the mouse hole for Doyon. Install 2 cement return lines (at or below the base of the cellar) on the 16" conductor. 2. Move in and R/U the Arctic Fox on Herculite and rig mats. Orient the rig such that the diverter line is headed 315 to 360 azimuth. 3. N/U the diverter and the 12" diverter line as per AOGCC regulations. 4. Make certain that the permits are in order and posted as required. 5. Post signs as required: Well identification, diverter line, etc. 6. Notify the AOGCC & BLM field inspectors 48 hours before spud. 7. Mix spud mud in the pits as per the attached mud program. 8. Put the 9 -5/8 ", 40# casing, float equipment and centralizers in the pipe shed. 9. Put MWD, non - magnetic DC, steel drill collars, HWDP and +/- 2500' of 4" drill pipe in the pipe shed to warm up. Strap and caliper all tools and equipment. 10. Rig up the mud loggers, MWD / LWD equipment, cementers, etc. 11. Conduct safety briefings, NPRA pre job, & muster drills with all rig personnel. 12. Only after everything is ready for continuous operations and when the rig has passed AOGCC / BLM inspection, spud the well. Wolf Creek 4, WBM 6 November 2008 1 • Surface Hole Program: • Pick up bit & BHA. • Drill to casing point at +/- 1000'. • Circulate and condition the hole for E -line logs. . • Make a wiper trip to the top Drill Collar & RIH to bottom. • Circulate until clean. POOH for logs. • R/U E -Line and log the well as programmed. • RIH and condition the hole for casing. POOH. • R/U and run 1000' of 9 -5/8" casing. Cement same to surface. • ND Diverter system. NU Wellhead and BOPE. Test same. Production Hole Program: • Drill 8 -3/4" hole to 3250' maintaining the MW as dictated by hole conditions. • Condition the hole for Togs. POOH. • R/U E -Line and log the well as programmed. • RIH and condition the hole for casing. POOH. • R/U and run 3250' of 7" casing. Cement same to surface as programmed. Completion and Well Test Program: • Make a bit and scraper run to PBTD. • Displace with brine as directed. LDDP. • R/U E -Line and run a GR -USIT log as directed. • Set a permanent packer on E -Line. • P/U packer seal assembly and completion tubing. • R/U the test tree on the drill floor. • R/U E -Line and perforate the lower zone(s) as directed. • Flow test the lower zone(s) as directed. • Optional: perform an injection test to establish the frac gradient. • Kill the well and remove the test tree. • P & A the lower zone(s) • POOH with the tubing. • RIH with a new packer assembly and tubing. • R/U the test tree on the drill floor. • R/U E -Line and perforate the upper zone(s) as directed. • Flow test the upper zone(s) as directed. • Optional: perform an injection test to establish frac gradient. • Kill the well. Plug the well as directed (see diagram) • Clean and release the test equipment and ship it back to Deadhorse • De- Mobilize the Rig and camp back to Deadhorse. Wolf Creek 4, WBM 7 November 2008 Days —vs- Depth Curve 0 0 An adarkp t Petroleum Corporation 0 Drill 12 -114" Hole ' Wolf Creek 4 L , Days -vs- Depth 2009 Log & Set 9-518" Casing I 1000 e J J J C . 0 2000 i Drill 8-3/4" Hole N 3000 E -Line Logs Run g Completion Set Casin Com 1 a) , m n (o P N a a m d m 4000 i n I '. i u- , I - i l i v I I -10 0 10 20 30 40 Days (RU Ready to Spud = 0 days) • 0 Wellbore Diagrams • • �da Petroleum Corporation Wolf Creek #4 Basic Well Design 0 �� 9-5/8" 40# L-80 BTC at +/- 1000' • 0: a h S . } ; < k @. o e., -�� �� . ' 7" 26 # L - 80, BTC Casing . � ��. . ��. ��. WAAW . ��. ��. ��. . : WAWA' , ��. .. ....z +/ 3250' November 14, 2008 • O,na darkp: Petroleum Corporation Wolf Creek #4 Lower Completion C) • i 3 -1/2 ", 9.2 #, L -80, IBT Tubing CIM Packer Assembly: • CIM / XXO Nipple g PKR • TBG pup joint • BWD PKR • 1 joint TBG • TBG pup joint • XN Nipple —"— • WLEG 7 ", 26 #, L -80, BTC -M Casing at 3250' October 13, 2008 • • AnadarKp Petroleum Corporation Wolf Creek #4 Upper Completion 3 -1/2 ", 9.2 #, L -80, IBT Tubing A M L CIM Packer Assembly: • CIM / XXO nipple PKR • TBG pup joint • PHL PKR • 1 joint TBG • TBG pup joint • XN Nipple • WLEG Plug Back Procedure 1. Set a pump thru plug: XN nipple 2. Squeeze the lower perforations 3. Pull the tubing 4. If necessary, set a CIBP 7 ", 26 #, L -80, BTC -M Casing at 3250' November 13, 2008 • • APIL _ II Anadarktat Petroleum Corporation I i Wolf Creek #4 Test Tree Test Tree • Crossover: 4" Hydril 563 x 3 -1/8" 5M Flange • 2 Master Valves (or 1 Gate Valve & 1 TIW Valve) • Flow Tee • Swab Valve • Crown Cap Methanol N G I ' Landing J oint: - --- - I I 5 "HWDP:3.25 "ID • 4" Hydril 563 top x 3 -1/2" EUE bottom 4111 - O._ r r _,'• . a 3 -1/2" Tubing Hanger in the Tubing Head November 14, 2008 • S AnadarlIcp Petroleum Corporation Wolf Creek #4 Plug and Abandon Plugging Procedure 1. Squeeze the upper perforations 2. Cut the tubing with Jet Cutter 3. Circulate cement to + 200' 4. Cut and retrieve the tubing 5. Spot the surface plug 6. Cut and retrieve the 7" stub 7. N/D BOPE and wellhead 8. Cut off the 9 -5/8" & 16" casing 7 ", 26 #, L -80, BTC -M Casing at 3250' November 13, 2008 • Diverter Diagram • • illiC Aii adarKp: Petroleum Corporation Wolf Creek #4 Arctic Fox 21-1/4" Diverter System 21 -1/4 ", 2000 psi GK Annular "Diverter" 12" Diverter Line Outlet + Knife Valve and 100' of 12" Diverter Line 16 ", 65# Conductor Set at +/- 100' • • I \./ 21 -1/4" 2000 PSI Mi. .1111 1 0 , `•_ i• J 12 ANSI 150 63.38° 35.06" GROUND LEVEL / TOP OF CELLAR 1 15.50 38.56" I 30.00" 49.50" 48.56 \ , II L J • IIIIIM 72.00" ill 16" CASING CUT –OFF tan: _ .- i I . , .,,. 22.50" 16 VG –LOC It 11 6.31" r - • - r �� r � r r� r r r fi r• r a r r!: r a m rVr r r r r i'r r — 16" 65# H40 CASING " 40# L80 CASING PROPRIETARY NOTICE vetcog ray" The Information contained hereon is the confidential property of vetcogray and its affiliates. It is to be used only 21 -1/4" DRILLING RISER ASSEMBLY ARRANGED FOR for the benefit of vetcogray, and shall not be reproduced or used for USE OVER 16" CASING WITH LANDING RING any other purpose without written consent of vetcogray. WITH 20" QUICK CONNECTIONS AND 12" ANSI CLASS 150 OUTLET MIAMI BY: DATE: G RICE B SEPT. 2000 REMEDIED BY: DATE: X APPROVED BY: DAIS: CUSTOMER ANADARKO �N SP- 6787 -1 INC x REFERENCE ALL DIMENSION ARE APPROXIMATE I %CETI Gil CiYON r i 500' DRILLING Arm -_a, The well center is 151' -1 I DRILLING LTD. from West lease line and Temporary I �n� N 204' -10 from North lease line Waste Storage 50'X100' j Prevailing Wind I j I j It PDX pa./ I j l m I � - o r e o 1 ' It 1 iil i - , d .t e n is "` _ ;4 _ __ 4 12 Mill ' co :3 ::+ gl ,,,,,,,,,,,v- .„ _... ,...„,.......„: r 3 ::::41:::::4,-.1 ii ,) ,..„, i MOUSEHOLE DRILL 12' DEEP RATHOLE Vie I AT 3° TO WELL I t► DRILL 31' DEEP --40'� 144' 6 . AT 9° TO WELL ° - ---.1— 25' O n a, I T o I �r z 0 — "' 20 ` f r o° Rig Camp t I I DEPTHS BASED ON A 44' RATHOLE & 26' MOUSEHOLE I I I I In N • 9 11 ", 5000 psi BOPE Diagram S • An Petroleum Corporation Wolf Creek #4 Arctic Fox 11", 5000 psi BOPE • 11 ", 5000 psi GK Annular Preventer 1 1; 11", 5000 psi Upper Pipe Rams Hydril, Double Ram .44 ):11111 11", 5000 psi Blind Rams 004. 11", 5000 psi Mud Cross with Choke & Kill Lines 11", 5000 psi Lower Pipe Rams Hydril, Single Ram 11 ", 5000 psi Casing Spool 11", 5000 psi Casing Head November 19, 2008 9 -5/8 ", 40 #, L -80, BTC set at 1000' l 8 I 7 I 6 I 5 1 4 I 3 I 2 I 1 ITEM QTY DESCRIPTION WEIGHT LBS 1 1 GK 11 - 5000 ANNULAR BOP ASSEMBLY 8,200 TOP CONNECTION. 11 - 5000 API TYPE 6B STUDDED R54 RING GROOVE D BOTTOM CONNECTION 11 - 5000 API R54 RING GROOVE E 6B FLANGE D 2 1 11 - 5000 DOUBLE RAM BOP ASSEMBLY 10,250 / _ TOP CONNECTION. 11 - 5000 API TYPE 6B STUDDED R54 RING GROOVE BOTTOM CONNECTION. 11 - 5000 API TYPE 6B STUDDED R5 4 RING G ROOVE G SIDE OUTLET. 3 1/8 5,000 API TYPE 6B FLANGE 4 R35 RING GROOVE 47,810 3 1 11 - 5000 DRILL SPOOL 1,165 \ i Ii T OP CONNECTION. 11 - 5000 API TYPE 6B FLANGE \` R54 RING GROOVE TYPE 6B FLANGE C I BOTTOM CONNECTION• R54 RING GROOVE C SIDE OUTLET. 3 1/8 - 5,000 API TYPE 6B FLANGE _ _ �� R35 RING GROOVE 1 7,; C) . • . O ettt� a N.r. • ® I 0 I / • 0 4 1 11 - 5000 SINGLE RAM BOP ASSEMBLY 5,050 I ® � G M 1�II- 132 310 1.12 . — 1111:114" ' O. o I • \Oi • ■ TOP CONNECTION. 11 - 5000 API TYPE 6B FLANGE 1 NNE o � o L1 J O Sr • ' O 0 R54 RING GROOVE ` 41.)00 — BOTTOM CONNECTION. 11 - 5000 API TYPE 6B FLANGE 1�'i, o m ��71� O •�' • •' O R54 RING GROOVE TT TT ( ^.1 ) SIDE OUTLET 3 1/8 - 5,000 API TYPE 6B FLANGE e= Ifill:1* 0/ • • R35 RING GROOVE ilM1:11 AV we 1� O r�r • � OS 84. 00 TOTAL WEIGHT <APPROX,) 24,665 B T . oo .. 22.000 0 43,500 0 � _ 1 ill r� T � 1 � III ® — 21100 ®, I 0 0 O .Oo I ~,! I, ® L!t. , ' ® • . a' 1111 1 1 1111 1111 1 1 1111 95.000 .4.37 A A UNLESS OTHERWISE SPECIFIED NOTICE C. MOLL 1 MO oS 0 .. m.pw Od •p�YpN N[N MO0mow , Wfi. PRCPPoETURY RIOHTS INVOLVED Gm® 0. BF1s. 2 AUG OS :: if8 °° � 2oa o• Mu 2 1U13 1U13 m DOYON DRILLING -• AO = mg ame • mt •• - - mum mg N NN,e IW. e. aim2 : 11° 5,000 PSI W we .n'N oe" R m1 • a 1 1 N N..N O. .N• N n , e m Z •NR•) w •R.• .5 st . N. o Vim o to l MS •o MOM DEMON NO. OOC I1 M BOP STACK ..m .... N. •W o] ... NNW am= •E MI MI IMMO Fm X - Al �p ..ea•.a m. xeR WM. Mum OF INC WNW IN.m. NN O w Ivom.: m 2..... . iL W N W ' ••m IL MA 1 5 r w I X 1000O387 A .R NOMICIN MY 00 NN NM. .®i..YNN••..mm[.O. NNe.3 so•s•NCV. i .. 2 /net / tom ....1 Les Isla* I _,.... 8 I I 6 I 5 t 4 I Nnamx/a I( .. ..1 1 a I ..N.-.. If LEDGEND WNW/ A �' TA JV �, White Handle Valves , �' Normally Open 3 / PI Red Handle Valves ii / Normally Closed TO Els ,e *16 / r, A ;1 4� / f/ OM00PS TAG K 1 0: Y, FR • ,, j ( 6 ) /la) (e) t ,...- 3 - 5 . ) co , TO PITS 4 - (A SIG ad P 1 5 Jo ic A Tm .... 5 MATERIAL LIST Item Description A 3- 1/16" 10M Remote Operated Choke B 3 -1/8" 5M Adjustable Choke , i''• 1 2- 1/16" 5M Manual Gate Valve . , 2 -14 3 -1/8" 5M Manual Gate Valve f4:1.1° \ ARCM FEW 0 • Casing And Cementing Data • 1 Ariadaricp Petroleum Corporation Wolf Creek 4 Field: Wildcat Surface & Production Casing ENG: S. Coyner Details RIG: Arctic Fox November 14, 2008 RKB: 732' DIR / LWD Mud FORM DEPTH HOLE CASING CEMENT GENERAL MWD Weight MD 1 TVD SIZE SPECS INFO INFO Diverter NONE NONE 80' 80' = ^ 16" 84# 8.4 Lead Cement Ninuluk 125' 125 Surface Csq 115 bbls, 149 sx E -Line: 9 -5/8 ", 40# 10.7 ppg Quad Combo' Spud L -80, BTC 4.33 cf /sx Caliper Mud Burst = 5750 psi ASL Collapse = 3090 psi '"'. Capacity =.0758 bbl /ft Tail Cement 120% Excess Chandler 770' 770' Drift = 8.679" 23 bbls, 137 sx Base Permafrost 800' 800' :: I 15.7 ppg Use caliper +20% ;f, . .: :,, ... 0.93 cf /sx tti;`e AS -1 8.8 9 -5/8" Casing 1,000' 1,000' I 12 -1/4" Bit 8.8 ?.' j Wellhead :., 11 11 , 5000 psi } I BOPS ;tii 11„ 5000 psi KCL KlaGuard LWD: I • :'t:' :: • GR /RES /NEU /DEN Drill -In Upper Grandstand 1,855 1,855' Fluid Prod. Casing Cement Slurry for ::::....::: I -.7,...,1.7:: r, 26# 107.3 bbls, 514 sx Coring L -80, BTC 15.8 ppg E -Line: Burst = 7240 psi 1.17 cf /sx Quad Combo t : �; Collapse = 5410 psi Class G Caliper - : ; ; ; Capacity = .0382 bbl /ft MREX : Drift = 6.151" 30% Excess RCI / MDT or caliper +15% Percussion SWC : A : A : s Rotary SWC ' ^*:, Lower Grandstand 2,205' 2,205 .1:x tit 1.4`. :.i Base Grandstand 3,100' 3,100' 10.0 7" Casing 3,250' 3,250' 8 -3/4" Bit [10/04/04] Wolf Creek 4 Well Plan Schematic • • Anadarkp: .., Petroleum Corporation Wolf Creek 4 Field: Wildcat Lower Grandstand ENG: S. Coyner Completion RIG: Arctic Fox November 14, 2008 RKB: 732' DIR / LWD Mud FORM DEPTH HOLE CASING CEMENT GENERAL MWD Weight MD TVD SIZE SPECS INFO INFO Wellhead 11" 80' 80' 16" 84# 5000 psi BOPE Ninuluk 125' 125' Surface Csq 11" E -Line: 9 -5/8 ", 40# 5000 psi GR /USIT /CCL L -80, BTC Burst = 5750 psi Collapse = 3090 psi Capacity = .0758 bbl /ft Chandler 770' 770' Drift = 8.679" Base Permafrost 800' 800' 9 -5/8" Casing 1,000' 1,000' 4 12 -1/4" Bit 8.5 KCL Brine Upper Grandstand 1,855' 1,855' Prod. Tubing 3 -1/2 ", 9.2# L -80, IBT -Mod Burst = 10160 psi Collapse = 10530 psi Capacity = .0087 bbl /ft Drift = 2.867" Lower Grandstand 2,205' 2,205' . .. Prod. Casing ::::;.: ^_ 7 ", 26# ai e+n ,� »�+ . _ L -80, BTC umza Burst = 7240 psi .511.a - Collapse = 5410 psi INMSNCIS r Capacity = .0382 bbl /ft Drift = 6.151" Base Grandstand 3,100' 3,100' 7" Casing 3,250' 3,250' 8 -3/4" Bit [10/04/04] Wolf Creek 4 Well Plan Schematic • • An • Petroleum Corporation ro $ Wolf Creek 4 Field: Wildcat Upper Grandstand ENG: S. Coyner Completion RIG: Arctic Fox November 14, 2008 RKB: 732' DIR / LWD Mud FORM DEPTH HOLE CASING CEMENT GENERAL MWD Weight MD TVD SIZE SPECS INFO INFO Wellhead 11'' 80' 80' I 16" 84# 5000 psi BOPE Ninuluk 125' 125' Surface Csq 11" E -Line: 9 -5/8 ", 40# 5000 psi GR /USIT /CCL L -80, BTC Burst = 5750 psi Collapse = 3090 psi Capacity = .0758 bbl /ft Chandler 770' 770' Drift = 8.679" Base Permafrost 800' 800' 9 -5/8" Casing 1,000' 1,000' 12 -1/4" Bit 8.5 KCL Brine Upper Grandstand 1,855' 1,855' 1�� • Prod. Tubing 3 -1/2 ", 9.2# L -80, IBT -Mod mraracl .f.7.. Burst = 10160 psi Collapse = 10530 psi Capacity = .0087 bbl /ft ao — ytiy Drift = 2.867" Plug #1 Minimum Volume Lower Grandstand 2,205' 2,205' A'' 25 bbl, 120 sx y ti 15.8 ppg 1.17 cf /sx Prod. Casing Class G :i. i� X`KY 7.. 26# ' L -80, BTC Burst = 7240 psi Collapse = 5410 psi Capacity = .0382 bbl /ft Drift = 6.151" ♦ 1.1.1.1.4....... ,'�1:1i1:1�tii4: Base Grandstand 3,100' 3,100' 7" Casing 3,250' 3,250' 8 -3/4" Bit [10/04/04] Wolf Creek 4 Well Plan Schematic • • An adarIp 2 Petroleum Corporation Wolf Creek 4 Field: Wildcat ENG: S. Coyner Plug & Abandon Schematic RIG: Arctic Fox November 14, 2008 RKB: 732' DIR / LWD Mud FORM DEPTH HOLE CASING CEMENT GENERAL MWD Weight MD TVD SIZE SPECS INFO INFO Wellhead 11'' 80' 80' 16" 84# 5000 psi 4 BOPE Ninuluk 125' 125' — Pluq #4 11" E -Line: 200' 200' Minimum Volume 5000 psi GR /USIT /CCL Surface Csq 8 bbl, 48 sx 9 -5/8 ", 40# 15.7 ppg L -80, BTC 0.93 cf /sx Burst = 5750 psi AS - Chandler 770' 770' Collapse = 3090 psi Base Permafrost 800' 800' Capacity = .0758 bbl /ft Drift = 8.679" 9 -5/8" Casing 1,000' 1,000' I 12 -1/4" Bit 8.5 Plug #3 Minimum Volume 4 65 bbl, 392 sx 15.7 ppg Prod. Tubing 0.93 cf /sx KCL 3 -1/2 ", 9.2# AS - Brine L-80, IBT-Mod Burst = 10160 psi Collapse = 10530 psi Capacity = .0087 bbl /ft Drift = 2.867" Upper Grandstand 1,855' 1,855' r +; ..�: +i: Pluq #2 .yf:•: Minimum Volume �'� 25 bbl, 120 sx �r�' { r 1 .r: •. — 15.8 ppg :,•:.•:::•::: :•::,' .... .::.::..: .�.•'.:'...:,1.,ti..t4.. 1.17 cf /sx : h' •'1'•'1'•'ti•1'•'1'•'titi?':'ti'•'L : :{c:•:.:: Class G :•rrrr.:;;; • . {.....L.1...... titi�ti L. ._; Pluq #1 Lower Grandstand 2,205' 2,205' Minimum Volume }: i i i? _ 25 bbl, 120 sx ':::::::::74::::74:::' : ::'A }pr +r;.:til 15.8 ppg ; :; �. •p•$i'.; Prod. Casing 1.17 cf /sx . ., ..... .:•.., 7", 26# Class G '•''' ifil� 1'1'� �:'"`r'r'r::` ?yrr, 1t �tN L -80, BTC ' i.:•r•r•r•:•: } }i. r•r•r• tijl ti.ti.1.'..ti.1.ti.ti . \ �L 4 . • Burst = 7240 psi r " "' '~� "' Colla se = 5410 psi ` : t •r• *" Capacity = .0382 bbl /ft :::+ Drift = 6.151" Base Grandstand 3,100' 3,100' ,;.•_... 7' Casing 3,250' 3,250' 8 -3/4" Bit [10/04/04] Wolf Creek 4 Well Plan Schematic 0 0 Drilling Fluids Program • Anadarko Wolf Creek #4 Mi DRILLING FLUIDS PROPOSAL Ah iladal4 4 12 t rrM+;rl�csm �o Wolf Creek #4 Mud Program 1 IRO Name Signature Date Originator: Jim Dwyer October 14, 2008 Reviewed by: Hal Martens Customer Approval: Version: 1.4 1 Location North Slope Alaska Confidential Date: October 14, 2008 • Anadarko Wolf Creek #4 Well Summary Wolf Creek #4 is to be drilled vertically to a planned depth of 3,250' MD with an optional 6.125" hole to 4,000'. Production zone target is to be the Nanushuk /Grandstand formation. As with any exploration well there is pore pressure uncertainty. Logging will be done therefore consideration will need to be made concerning the use of mud products. Expected formation pressure in the Nanushuk production interval should be normal and a low weight solids free FloPro will be used.. All product for this well will be delivered to Umiat by air or by Rolligon prior to being delivered to the drilling location —36 miles west of Umiat. In order to minimize the need of having large quantities of product on hand and also reduce the amount of cuttings that need to be hauled away, it is suggested that a FLOPRO system be used to drill at least the production interval. Typical dilution rates have been much lower for this system than for any other water based system (Gel /water, KCI /polymer, and PHPA) that has been previously used for exploration drilling in remote locations. Fluid Type Typical Dilution Rate (bbls of fluid per bbl of hole drilled) Gel /Polymer 5.8 — 8.1 bbls /bbl KCI /Polymer 6.1 — 6.5 bbls /bbl PHPA 5.5 — 6.5 bbls /bbl FloPro 3.5 — 3.6 bbls /bbl The resulting improvement in the dilution rate of the FLOPRO system over other systems has been shown to dramatically reduce haul -off costs of both cuttings and excess fluids. Have contingency products on hand in the event that a weight increase is needed and to also combat any lost circulation problems that may occur. Fluid and Drilling Concerns HSE. Differential sticking due to filter cake build up through the exposed sand intervals. Mud weight for hole /shale stability. Waste management. Wellbore stability throughout the drilling phase of the operations. Hole cleaning. Good clean coring fluid. Log and sidewall core quality. Minimization and control of waste management cost for the "drill cuttings" and associated fluids. Monitoring and efficient utilization of the trucks and gravel washer as required for this operation. Daily and interval summaries will be tallied and summarized for the end of well report. Minimization of formation damage 2 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 Project Summary Estimated Casing Hole Measured Waste Volume Mud Size Size Depth Mud Footage Generated Density Range (in) (in) Profile (ft) Type Drilled Cuttings / Mud (ppg) 16" 100' 12 1/4" 9 .1458 1,000' Gel Spud 900' (cuttings) 8.6 - 8.8 900 146 Bbls cuttin s bbls /ft Mud 1246 Bbls (Mud) 8 3/4" 7.0" .0744 3,250' FLOPRO 2,350' 167 Bbls (cuttings) 8.8 - 10.0 bbls /ft 837 Bbls (mud) Note: Cuttings volume is gauge hole calculation. Mud estimate includes mud on cuttings. Formation Tops Base of Permafrost -800 Upper Grandstand -1855 Lower Grandstand -2205 Torok -3900 3 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 IFE Goals and Benchmarking Minimize cuttings and fluid haul off volumes No Stuck Pipe No Mud Related HSE Issues Minimize formation damage in production hole Good recovery of core samples with minimal invasion All Casing /Liner to Bottom MiSWACO was involved in the Gubik 3 and Chandler 1 wells last winter which dealt with several waste management issues that will affect the Anadarko operations on Wolf Creek 4. The following lessons learned on that project should be applied to the planning for the Anadarko wells: Insulated tanks should be used and heating will still be necessary. Tank farm personnel should be available for loading and unloading of tanks and maintenance of all manifolds, valves, and fittings. Fluid should be mobilized to disposal site as soon as possible as tanks are filled. The Rolligon tanks can hold 70 to 80 barrels but high mud weight must also be considered for volume transported (i.e., 13.6 ppg x 42 gal x 80 = 45,696 Ibs). 2- centrifugal pumps to help load or offload fluid as needed also the ability to roll the fluid as needed to prevent settling or freeze up. 3" manifold rigged up so that all tanks suction and riser lines are hooked into a central location Job shack and gen set needed for tank farm personnel on location if used. FLUID WASTE MANAGEMENT A reserve pit will be built for cuttings storage while drilling. The cuttings will be frozen and then loaded into large cuttings boxes that will be hauled via Rolligon to Kuparuk for eventual transport and disposal. Liquid waste will be stored in the tank farm which should consist of minimum two 400 Bbl upright tanks. If transportation issues due to adverse weather are a big issue; 4 tanks can be stored at the rig site for transport later. At minimum tank storage capacity should be enough for displacing well and circulating pit volume when final casing is set. A glycol boiler should be rigged up for every 3 tanks to keep the liquid from freezing. The tanks, when they are delivered to location, should be fitted with any necessary ball valves or cam lock fittings. The parts need to be ordered to mate up the tanks and the rig or Vac Truck. Even with glycol heat on the tanks, the valves can freeze very easily and the butterfly valves built on the tanks sometimes may be difficult to open. The overall tank farm set needs a designated crew to run or rig up the farm so any freezing or valve issues can possibly be avoided. They would need to install and inspect all the proper equipment and fittings (boiler, trunk heaters, valves, fittings and hoses). During the drilling operations, CATCO Rolligon tanks can be utilized to haul liquid waste to Anadarko's staging pad. Once the tanks arrived at the staging pad, they were loaded onto Vac trucks for transport to the dedicated disposal wells. A total of 2800 bbls of liquid mud under worst case scenario will be hauled off for injection. Annular injection is not an option presently. 4 Location North Slope Alaska Confidential Date: October 14, 2008 • Anadarko Wolf Creek #4 Surface Interval Summary Surface Interval Drilling Fluid System Gel Spud Mud Key Products M -I Gel, Gelex, Caustic, M -I WATE Solids Control Shakers, 2 - Centrifuges Running gravel, unconsolidated sand, clay Potential Problems Lost Circulation INTERVAL MUD PROPERTIES API Fluid Depth MD Mud Wt. Yield Point Loss (ft) (ppg) Funnel Viscosity PV (Ib1100ft (m1/30min) pH Initial 8 . 6 > 150 20 - 30 40 - 60 < 12 9.0 - 9.5 Below 8.6 - 8.8 > 150 20 - 35 40 - 60 < 12 9.0 — 9.5 Permafrost 1000' TD 25 — 45 (to cement 8 . 8 60 - 80 25 - 35 (or as per < 10 9.0 — 9.5 the casing) Cemcade) Surface Interval Overview Surface to 1,000' MD Lithology through this zone is a composite of small gravel in the upper intervals with a grading downward to sand, clay, and some siltstone in the lower zones of this interval. Based upon work done on previous wells in this area a M -I Gel spud mud is recommended for the surface interval. Gas hydrates may be encountered and precautions should be taken for such an occurrence (see "Surface Interval Hydrate Issue" enclosure). 9.625" surface casing will be set as per cementing procedures in drilling program. M -I Gel Spud mud Formula Caustic 0.25 lb/bbl Soda Ash 0.25 lb/bbl M -I Gel 25 — 30 lb/bbl Drispac .5 lb/bbl Gelex 0.25 lb/bbl CF Desco 0.25 lb/bbl MI WATE for dry jobs 5 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 Surface Interval Overview Surface to 1,000' MD Lithology through this zone is a composite of small gravel in the upper intervals with a grading downward to sand, clay, and some siltstone in the lower zones of this interval. Based upon work done on previous wells in this area a GEL spud mud is recommended for the surface interval. Gas hydrates may be encountered and precautions should be taken for such an occurrence (see "Surface Interval Hydrate Issue" enclosure). 9.625" surface casing will be set as per cementing procedures in drilling program. Surface Interval Drilling Concerns: Lithology through this zone is a composite of pebble conglomerate and sand in the upper intervals with intermittent clay matrix. Carbonaceous material and coal may be noted. A GEL Spud mud is to be used for the surface interval. Initial rheological properties of 45 -60 Ib /100ft Yield Point and -100 -150 sec /qt Funnel Viscosities should be maintained through the permafrost. 9.625" surface casing will be set and the cement will be pumped in a single stage to surface. Gravel sizes that are larger than normal can cause hole - cleaning problems. If encountered be prepared to increase the viscosity. Excessive quantities of gravel and sand may indicate wellbore instability. Past exploration wells have increased properties up to a YP of —85 Ibs /100ft to combat this problem. When drilling excessive amounts of sand, large Gel sweeps are recommended to help seal the sands and to help minimize seepage losses in the sands. Do not use Caustic when building these Gel sweeps. The objective is to be able to get as much Gel as possible in fresh water to be used as the sweep. Sticky clays in the permafrost at and also in the zone below the permafrost can slow ROP from bit and BHA balling. If needed add Drilzone (at 1 %) and Nut Plug m (as allowed by MWD tools) to minimize clay to metal sticking. Drillzone (at 1 %) may also be needed to help with shaker screen blinding. Use as cold of water as possible for the initial make -up and for additions made to the mud system during the surface drilling operations. Maintain low flow rates for the initial 200' of drilling to reduce the chance of washing out the conductor shoe. Swabbing in the clays may also be a problem. Maintain or slightly increase the mud weight (.1 ppg) and continue additions of Drilzone at 15 to 30 gallons per hour and wiper runs through the surface interval may be necessary to clear the wellbore of the problematic clays. Drilzone maintained at 1.0% is also recommended to help with clay related issues. To help insure good cement to surface after running the casing, condition the mud to a YP of at least 25 - 30 prior to cementing the casing or as recommended by Cemcade. Do not lower the YP beyond 25 to avoid trouble with sands that may be found on this well. Have Desco CF, Tannathin, SAPP, and water on hand to ensure the desired rheologies can be achieved. Use water sparingly to reduce the overall haul -off costs for this well. Hydrates may be encountered (particularly at depths below the permafrost). Observe good drilling practices to determine severity of any influx and weight up as needed to maintain proper well control. 6 Location North Slope Alaska Confidential Date: October 14, 2008 • Anadarko Wolf Creek #4 Surface Interval Operations Recommendations: Gel Spud mud will be mixed on the rig. Add Soda Ash at 0.5 ppb and 25 ppb M -I Gel to the make -up water and allow the gel to hydrate as long as possible prior to mixing the other products. Use as cold of water as possible for the initial make -up and for additions made to the mud system during the surface drilling operations. Drill ahead maintaining volume as needed. Fluid weight is planned to be maintained at 8.8 ppg throughout this interval. If seepage losses in sands occur, use MIX II to aid in sealing these sands. Run all solids control equipment. Add drill water below the shaker to avoid washing unwanted solids back into the active system. Waste minimization is "Extremely Important" on this well. All cuttings and liquids have to be stored on location and hauled as needed by Rolligon for disposal. Use these guidelines to help minimize the effect that any hydrates which may have to the drilling operation: Weigh the mud at both the possum belly and at the suction pit using pressurized and regular mud balances to determine the amount of gas that has become entrained in the mud. Maintain the fluid at below 60 °F if possible. Minimize circulation time to reduce hydrate thawing. Watch both drill rates and flow rates and make adjustments as needed to help diminish any problems that the surface equipment may have in handling the fluid and cuttings while circulating out any hydrates. Lower API fluid loss with PolyPac Supreme UL as needed to maintain hole stability. ScreenKleen added to surface mud system has proved effective in North Slope operations for hydrate issues. To control rheology additions of Desco CF may be needed. The recommended LCM pill formula for this interval is as follows: 30 bbls of the existing fluid 10 ppb Nut Plug Medium 10 ppb MIX II Medium / Fine 10 ppb Calcium Carbonate If hole conditions allow, let the YP drop to 25 — 30 (no lower than 25) prior to cementing of the casing. Allow surface mud volumes to fall during the later stage of this interval to minimize waste fluid disposal costs. Upon drill -out of the surface casing shoe, treat any cement returns with SAPP, Bicarb, and Citric Acid if needed. 7 Location North Slope Alaska Confidential Date: October 14, 2008 • 0 Anadarko Wolf Creek #4 Surface Interval Virtual Hydraulics Modeling Mg SWACO ©1995- 2006 L.L.d. 4 "DP MD:1000 ft OperatorAnadarko 8.8 ppg @ 750 gpm TVD:1000 ft Well Name: Wolf Creek 4 VIRTUAL HYDRAULICS* Snapshot` BitSize:12.25 in Lacation:North Slope Alaska Date: 08 CountryUSA Depth Geometry Angle Density Va Hole Clean Pressure Distribution (ft) MDITVD Csg ODAD ( °) (lb/gal) (ft/min) Index ( %) (5) (in) 0 45 90 8.8 9 . 2 9.8 0 120 240 VG G F P Bit 37 Ann .2.3 DS =60.7 100 I ■ L 13.3 1 • 1 100 12.510 Drilling Fluid Water -Based Mud Mud Weight 8.8 lb/gal Test Temp 120 °F System Data Flow Rate 750 gaVmin Penetration Rate 150 ft/hr Rotary Speed 100 rpm Weight on Bit 15 1000 lb f , Bit Nozzles 12633[1' Pressure Losses Modified Power Law I — Drill String 472 psi MWD 250 psi I. Motor 150 psi Bit 288 psi . Bit On/Off 100 psi Annulus 18 psi Surface Equip 40 psi U -Tube Effect 14 psi TotalSystem 1332 psi ESD ECD +Cut p 1000 , 12.250 CsgShoe 8.86 9.13 9.41 1000 TD 8.86 9.20 9.48 BD E — Vf0l1- VSnlon 8.1 736 +F70 (0167) l� r r - Futl 96 11.. - FtT4Ad m Ells • Wolf Qssk 4.M08 Jim 7.70s 8 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 Surface Interval Hole Cleaning Mi SWACO ©1995-2006 L.L. 4 "DP MD:1000 ft Operator:Anadarko -/ n.n TVD:1000 ft WellName: Wolf Creek 8.8 ppg le 750 gpm VIRTUAL HYDRAULICS" VRDH` BRSze:1225 in LO Slope Alaska Date912512006 Country 11 SA Hole Cleaning Anadarko Wolf Creek 4 1.00 - _ — RO P 40 ft /hr — ROP 80ft /hr — ROP 120 ft/hr Poor Hole Cleaninq _____ ROP 160 ft /hr - — — — — ROP 200 ft /hr ' ' 0.75 ��" CD _ Fair Hole - C R 0.50 - _ _ �� Good -._�� H o :. ----- p - _ 0.25 IIIII MMENENIMINI 0 -- - -.__ - -_..._ . _..... __ , -_ _.._ ._ .- , 500 600 700 800 900 Flow Rate (gal /min) In all cases where hole cleaning is rated as either "Fair" , "Fair to Poor ", or "Poor" extra precautions must be made to keep the well bore clean. Extra time spent should be spent on circulation prior to connections and trips. Adjust rheology if possible to help with hole cleaning. Weighted high viscosity sweeps may help but should not be used as a primary cleaning strategy. Maximized rpm while drilling and circulating will generally aid with hole cleaning. Monitor PWD data (if available) closely. Observe and chart pickup and slack off weights during each connection. 9 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 Production Interval Summary Production Interval Drilling Fluid System FloPro Key Products Polypac Supreme UL, FloVis, Caustic, KCI, KLAGARD Solids Control Shakers, Mud Cleaner, Centrifuge- Aggressively sized fine screens, Solids Van Hole cleaning Potential Problems Loss circulation /Differential sticking Hole stability INTERVAL MUD PROPERTIES API Fluid Depth MD Mud Wt. PV Yield Point Gels Loss K + (ft) (ppq) (Ib/100ft (Ib /100ft (10 sec/10 min) (m1/30min) (mg /I) pH 1,000 — 3,250 8.8 —10.0 10 - 18 18 - 25 6 -10 /10 - 15 <6 28,000 — 32,000 9 — 9.5 Production Interval Overview The production interval will be drilled /cored to a depth of -3,250' MD using an 8.5" bit. The interval will begin with a 8.8 - 9.0 ppg FloPro mud. Minimization of formation damage is critical to this hole section. A well maintained FloPro supplemented with good solids control equipment for maximum solids removal will minimize fluid invasion into coring sections. Coring will be done as per the drilling /testing programs geological /analytical needs. Fluid properties will need to be maintained to ensure that the best possible fluid is used to do the coring. Drill out the shoe and cement prior to changing over to the coring fluid. High weight/high viscosity sweeps should be run to ensure that all of the cement is removed from the hole prior to the displacement. FLOPRO Formula Caustic 0.25 lb/bbl Flo Vis 1.0 - 1.25 lb/bbl Polypac Supreme UL 1.0 - 1.5 lb/bbl 6% KCI 22.0 lb/bbl MI WATE for hydrostatic LoTorq 1.5 - 2% v/v if needed for torque Klagard 8.0 lb/bbl 10 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 Production Interval Considerations Lithology for this interval is expected to be typical of this region consisting of sand, shale, and siltstones. Ensure that the fluid properties are maintained to provide the best possible hole cleaning. Maintain mud weights as per program guidelines and or hole conditions and ensure that rheology is optimized to reduce ECD's to a manageable level while drilling. Pore pressure and shale stability uncertainties do exist and care should be taken while drilling this interval. Monitor for any fluid losses and flow back closely. If additional mud weight increases are required, control the ROP and flow rates as needed to avoid inducing a breakdown of any formations while drilling in the lower portion of this interval. Reduce pump rates immediately if packing off occurs. Pump high viscosity sweeps and ream carefully to clean the hole before proceeding with further drilling. Adjust rheology, pipe rotation speed, pipe running speeds and pump rates as needed to balance hole cleaning and ECD. Use good drilling and tripping practices. Break circulation slowly — Reduce pump speed 15 to 20% while reaming down. Although not expected, lost circulation may be a problem for this interval. Avoid drilling practices that could contribute to the breakdown and subsequent losses. Tripping and casing running speeds should be monitored closely. Rheology and mud weight should also be held within tight specification. Upon reaching casing point watch the bottoms -up cuttings closely. If the well does not readily cleanup or if there are any excess of torque, drag, pick -up or slack -off weights pump a high viscosity /weighted sweep and observe bottoms up again. Fluid deliveries, fluid transfers, and cuttings disposal issues will be tracked on a daily basis. Production Interval Operations This interval will be drilled and cored using an 8.5" bit to an expected interval TD of 3,250' MD. Care should be taken to monitor all drilling criteria to ensure that "best" drilling practices are being observed. Interval pore pressures may vary. Uncertainty does exist in a wildcat well; shale stability and pore pressures could require a higher or lower mud weight. Any fluid weight adjustments should be performed in 0.1 — 0.2 ppg increments using MI WATE or a weighted "spike" fluid. Keep current with directional drillers and MWD personnel on MD vs. TVD depths for the following weight up points • Manage ECD's • Maintain low gravity drilled solids to below 6% with solids control equipment and dilution. • Use Virtual Hydraulics ECD predictions vs. PWD actual values to appraise hole cleaning and hole conditions. If possible do not allow actual ECD's to exceed 0.5 ppg over predicted "clean hole" ECD. • Run TripPro Module of Virtual Hydraulics for surge /swab predictions with actual well bore and fluids data prior to RIH /POOH. Distribute and adhere to trip schedule prior to TOOH • Circulate until a clean hole ECD is attained (< 0.5 ppg above predicted ECD). • If deemed necessary, spot a pill containing —5 ppb SafeCarb 250, 5 ppb SafeCarb 500 and 15 ppb G- Seal to cover any under pressured zones that may be found. • Keep the pipe moving as much as possible. • During TIH Optimize tripping speed using Trip Pro. 11 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 Wolf Creek 4 DT Comparison Offset D 8 die AV V rz mt Wolf Creek fi4 Target 5eismic PPFG v� t:, : P sti '7 03f Fc PP FG SI UOM UOP al ,- , 1 ® ri 0 n $Seabee bn+ TVD/KB(fl) i ti ! NmulukFm \� 1111111111111111 _ +PP DefEstimate (Wolf Creek 54 Target) '4� PP Synthetic (Wolf Creek 54 Target) IL _--_ -..__. ._ — _... - ,--___ - Tops (Wolf Creek 94 Target) ��� i —0BG rhob Estimate (Wolf Creek #4 Target) j 113. 750 �- t Chandler Fm 1 �� 75/ FG M&.K Estimate (Wolf Creek 94 Target) 1111111.11111111111 �� � I l� ME 1 ..... ._ 1 MICI �� 1500 7r- . d 1500 . IN 111111111111111111 C -- - pper Grandstand i iLj i T F IMF I t t. Lower Grandstand 3000 1 �. i 1111.1 3000 j, 4 1 111111? III I i - - ! III 3750 IIII 3750 +TorokFm II 4 PTD r- _ --- ---- -- — ._.._ - ---- -- I I 4500 dt Est (Wolf Creek il4 Target) ! ..... - -NCTL dt -- _. DT awl (GUBIK 2) - -- f - -- -'-- -- -- -- --DT 135 (GUBIK UNIT 1) i - -DT SHPT f55 (SEABEE 1) I i i - -SHPT DT_LDTGRf55 (BIG BEND 1) f '. -_. DT (GUBIK 3) Y �. __ I V l � I — 40 50 60 70 00 90 100 150 5.00 1000 l5'00 2000 7 5.00 12 Location North Slope Alaska Confidential Date: October 14, 2008 • 0 Anadarko Wolf Creek #4 Production Interval Virtual Hydraulics Modeling IVII SWi4 C� _ __- " . ©1995-2006 f M 4 DP TVD:3260 ft Well Name: Wolf Creek 4 � I 10 ppg @ 450 gpm VIRTUAL HYDRAULICS* SnapShot* B4 S e 10/1412008 In Cou e try ll SAh Slope Alaska Depth Geometry Denby Va Hole Clean Pressure Distribution (ft) MD/TVD CsgODAD (113/gal) (ft/ mil) Index ( %) (ft) (in) 100 10.4 10.8 0 300 600 VG 2 F P Bit= 88 Ann =6.9 DS =26.1 200 400 k 600 1 0 803 Drilling Fluid FLOPRO NT 1000 1000 k_' 6.625 Mud Weight 10 lb/gal 1000 t 1 8.681 Test Temp 120 °F 1200 i 1 System Data Flow Rate 460 gal/min 1400 Penetration Rate 60 ft/hr 1600 Rotary Speed 100 rpm . Weight on Bit 16 1000 lb 1800 Bit Nozzles 10- 10- 10 -10 -' • . 10- 0 -0 -0.0 2000 I Pressure losses 2200 Modified Power Law 1 - Drill String 328 psi 2400 MWD 260 psi Motor 160 psi Bit 889 psi 2600 OO 2800 Annulus 90 psi psi S Bit urfa ee Equip ff 21 100 psi 3006 ' U - Tube Effect 11 psi I. Total System 1839 psi • ESD ECD +Cut D 3250 8.500 \ Csg Shoe 10.10 10.66 10.61 3250 TD 10.11 10.6410.71 941 - ESD E V11511-Version 3.1 F36 • F70 r2001) - ECD - 8' an k 9600 F(]Nf14 m Filo -Wolf Creek 4.808 F70110 13 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 Production Interval Hole Cleaning IMF SWAY ` ©1995-2006 M-IL.L.C. 4"131. 4"131. MD:3260 ft Operator:Anadarko wart or M -i L.L.c TVD:3260 ft 1 WellName: Wolf Creek VIRTUAL HYDRAULICS' MOW 10ppeQ460epm BRSa•: in Location:North Slope Alaska __- D•NAOn 4/2008 CountryUSA Hole Cleaning Anadarko Wolf Creek 4 1.00 1 i 1 - _ — RO P 25 ft /hr i MIME= ROP 50 ft /hr poor Hole — ROP 75 ft /hr 1 ROP 100 ft /hr /ng _ — can --- . ROP 125 ft /hr 0.75— — ROP 150ft /hr — . IM 1111111 X I ir- - -- �--- --- C0 1 . .1 1 ' 111 111111111111..111 MINIM __- Fair Hole � f0 • 0.50 11 ' - --- U � i _ - - { - -��- � Goo• • e Cleaning 1 O '111111111111111 - -- —_i_ 0.25 r 200 300 400 500 600 Flow Rate (gal /min) Extra time spent should be spent on circulation prior to connections and trips. Adjust rheology if possible to help with hole cleaning. Weighted high viscosity sweeps may help but should not be used as a primary cleaning strategy. Maximized rpm while drilling and circulating will generally aid with hole cleaning. Monitor PWD data (if available) closely. Observe and chart pickup and slack off weights during each connection. Extra time spent should be spent on circulation prior to connections and trips. Adjust rheology if possible to help with hole cleaning. Weighted high viscosity sweeps may help but should not be used as a primary cleaning strategy. Maximized rpm while drilling and circulating will generally aid with hole cleaning. Monitor PWD data (if available) closely. Observe and chart pickup and slack off weights during each connection. 14 Location North Slope Alaska Confidential Date: October 14, 2008 1 • Anadarko Wolf Creek #4 Loss Circulation Flow Chart Lost Returns Noted v Stop drilling and observe the well � r Are the losses from surface equipment ?�J V • Locate and stop loses (Yes J Is :he well flowing' Record shut in pressures. Kill the well. Measure the rate of loss 1 Seepage Losses <10 bph 4- Partial Losses 10 - 100 bph . Total Loss of Returns Pump 100 bbls of: Continual additions of Pump 50 bbls of MIX 11 at 4 - 8 sacks+hr SafeCarb 60 - 20 ppb SafeCarb 60 - 20 ppb SafeCarb 15 - 20 ppb shaker screens as SafeCarb 15 - 20 ppb SafeCarb 500 - 15 ppb Charge sha rsak s MIX II rued - 10 ppb MIX II mad - 10 ppb Nut Plug fine - 20 ppb t i • Monitor the well - ( Monitor the well i t i # Losses above I Losses above 10 bph 10 bph Mica M - 10 ppb Spot one of the following pills MIX II f - 15 ppb Form -A -Plug MIX II m - 10 ppb Gunk G -Seal - 20 ppb Cement SafeCarb - 10 ppb Nut Plug m - 10 pph 15 Location North Slope Alaska Confidential Date: October 14, 2008 • • Anadarko Wolf Creek #4 HSE Issues Handling Drilling o f Drillin Fluid Products Health and Safety Drilling crews should be instructed in the proper procedures for handling fluid products. Personal Protective Equipment (PPE) charts should be posted in the pit room, the mud lab, and the office of the Drilling Forman. PPE must be in good working order and be utilized as recommended by the PPE charts. Product additions should be made with the intent to use complete unit amounts of products (sacks, drums, cans), as much as possible in order to minimize inventory of partial units. Ensure all MSDS sheets are up to date and readily available for workers to access for information. Review MSDS sheets with mud engineer and discuss proper PPE for mixing procedures with chemicals. Environmental > Ensure that all product stored outside is protected from the weather. Do not store partial units (sacks) outside if possible. When transferring fluids and /or cuttings from the rig to tanks, ensure all hoses are properly secured. Perform a transfer checklist as needed in order to avoid spills. Product Health and Safety Reference Product Function Health Flammability Reactivity PPE CALCIUM CHLORIDE (DRY) Brine density 3 0 1 X CAUSTIC SODA Alkalinity control 3 0 1 X CITRIC ACID pH Adjuster 2 0 0 E DEFOAM X Defoamer 1 1 0 J DESCO CF Dispersant 1 1 0 E DUOVIS Viscosifier 1 1 0 E FLOVIS Viscosifier 1 1 0 E G -SEAL Graphite loss circulation 1 1 0 E GELEX Bentonite Extender 1 1 0 E MYACIDE 25G Biocide 3 0 0 J LIME Calcium Source, Alkalinity 2 0 0 E LOTORQ Lubricant 1 1 0 J MI WATE Weighting Agent *1 1 0 E MI GEL Viscosifier *1 1 0 E MI SEAL F, M, C Loss circulation material *1 1 0 E MIX II F, M, C Loss circulation material *1 1 0 E NUT PLUG Loss circulation material *1 1 0 E POLY pac UL Fluid Loss Control *1 1 0 E SAFE CARB 20 & 40 Bridging & weighting agent *1 0 0 E SAFE SURF 0 Oil base detergent 2 2 0 J SALT (NACL) & Brine Solution Densifier 1 0 0 E SAPP Dispersant *1 0 0 E SODA ASH Calcium precipitation 1 1 0 E SODIUM BICARB Alkalinity control 1 0 0 E 16 Location North Slope Alaska Confidential Date: October 14, 2008 • Anadarko Wolf Creek #4 HAZARDOUS MATERIALS IDENTIFICATION SYSTEM (HMIS) HAZARD RATINGS 4 - Severe hazard 3 - Serious hazard 2 - Moderate hazard 1 - Slight hazard 0 - Minimal hazard An asterisk next to the health rating indicates that a chronic hazard is associated with the material. HMIS PERSONAL PROTECTIVE EQUIPMENT INDEX A - Safety Glasses B - Safety Glasses, Gloves C - Safety Glasses, Gloves, Synthetic Apron D - Face Shield, Gloves, Synthetic Apron E - Safety Glasses, Gloves, Dust Respirator F - Safety Glasses, Gloves, Synthetic Apron, Dust Respirator G - Safety Glasses, Gloves, Vapor Respirator H - Splash Goggles, Gloves, Synthetic Apron, Vapor Respirator - Safety Glasses, Gloves, Dust and Vapor Respirator J - Splash Goggles, Gloves, Synthetic Apron, Dust and Vapor Respirator K - Air Line Hood or Mask, Gloves, Full Suit, Boots X - Consult your supervisor for special handling directions See Material Safety Data Sheets (MSDS) for more information M -I L.L. C, Occupational Health Department (Revision — April 10, 2003) Houston, TX, Telephone: 281/561 -1509 M -I L.L.C, Occupational Health Department (Rev. 4 Aug -98) Houston, TX, Telephone: 281/561 -1509 080598PRHS -1 17 Location North Slope Alaska Confidential Date: October 14, 2008 TRANSMITTAL LETTER CHECKLIST WELL NAME W(') PTD# ZD g 9 Development Service Exploratory Stratigraphic Test Non - Conventional Well FIELD: POOL: Circle Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ADD -ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (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. PILOT HOLE In accordance with 20 AAC 25.005(0, all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non - Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1/11/2008 WELL PERMIT CHECKLIST Field & Pool Well Name: WOLF CK 4 Program EXP Well bore seg ❑ PTD#: 2081940 Company ANADARKO PETROLEUM CORPORATION Initial Class/Type EXP / PEND GeoArea 890 Unit On /Off Shore On Annular Disposal ❑ Administration 1 Permit fee attached_ NA 2 Lease number appropriate Yes Federal IeaseAA -86604 3 Unique well name and number Yes 4 _Well_located in a definedpool No Exploratory well 5 Well located proper distance from drilling unit boundary Yes Located near the center of a 6 mile by 3 mile federal lease block 6 Well located proper distance from other wells Yes Nearest well is Wolf Ck Test 1, which is about 4,5 miles to the WNW. 7 Sufficient acreage_available in drilling unit_ Yes 8 if deviated, is wellbore plat_inciuded NA Vertical well 9 Operator only affected party Yes 10 Operator has_appropriate bond in force Yes 11 Permit can be issued without conservation order Yes Appr Date 12 Permit can be issued without administrative_approval Yes SFD 12/15/2008 13 Can permit be approved before 15-day wait Yes 14 Welllocated within area and_strata authorized by Injection Order # (put IO# in comments) (For NA 15 All wells_withip 1 /4_miie area_of review identified (For service well only) NA 16 Pre- produced injector: duration_of pre production less than 3 months (For_service well only) _ _ _NA 17 Nonconven, gas conforms to AS31,05.03Q(1.1.A),(1.2.A -D) NA - 18 Conductor string_provided Yes Engineering 19 Surface casing protects all_known USDWs Yes No known USDWs, Surface and production casing_s cemented_to surface. 20 CMT v_ol adequate to circutate_on conductor & surf csg Yes 21 CMTv_ol adequate to tie- inlong string to_surf csg Yes 22 CMT_will coyer_all known_productive horizons Yes 23 Casing designs adequate for C,_T, B $.permafrost Yes 24 Adequate_tankage or reserve pit Yes Rig equipped with steel pits, lce_cuttings_storag_epit planned._ W_aste to approved disposal wellLs). 25 lf_a_ re -drill has a 10-403 for abandonment been approved NA 26 Adequate wellbore separationproposed Yes No proximate wells, 27 if diverter required, does it meet regulations Yes Request to use _12"_ line with 12 -1/4 "hole. Approval recommended. Appr Date 28 Drilling fluid program schematic_& equip list adequate Yes Maximum expected formation pressure 9.7 EMW. MW up to 19.0 ppg planned. TEM 12/16/2008 29 BOPEs,_do they meet regulation Yes ,p/ 30 BOPE_press rating appropriate; test to_(put prig in comments) Yes MASP calculated_at 1282 psi. 300_0_pstBOP_ test planned, J,r 31 Choke manifold complies w /API_ RP -53 (May 84) Yes III /�"WW 32 Work will occur without operation shutdown Yes 33 is presence of H2S gas probable Yes H2S not reported in offsets._ Rig is equipped_with sensors and alarms. 34 Mechanical condition of wells within AOR verified (For service well only) NA 35 Permit can be issued w/o hydrogen sulfide measures No Geology 36 Data_presented on potential overpressure zones Yes Expected pressures are normal (< 9ppg EMW) to underpr_essured_based_onWolf Ck_1, 3 &_3; will be drilled using_ Appr Date 37 Seismic analysis of shallow gas zones Yes 8.6 to 1.0,0_ ppg niud._ No shallow hazards indicated in data. SFD 12/15/2008 38 Seabed condition survey (if off- shore) NA 39 Contact name /phone for weekjy_prog_ress reports [exploratory only] Yes Skip Coyner 907 -273 -6305 Geologic Engineering P • 'c Commissioner: Date: Co mission r: Date "!� loner Date 16 � , �► in -/6 - D9 I/ • • Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. I I 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. THIN SECTION, SEM, AND XRD STUDY OF Core Samples from: Wolf Creek 4 Well Foothills Program North Slope, Alaska Doir-C, 10 PETROLEUM SERVICES Core Lab RESERVOIR OPTIMIZATION PETROLEUM SERVICES Core La AESEAYOIA OPTIMIZATION 1 1 1 THIN SECTION SEM AND XRD STUDY OF ' Core Samples from: ' Wolf Creek 4 Well Foothills Program 1 North Slope, Alaska 1 1 Prepared for: Anadarko Petroleum Corporation August 27, 2009 1 1 1 Job No. 090207G Core Laboratories, Inc. Petroleum Services Advanced Technology Center 6316 Windfem Houston, TX 77040 1 The analytical results, opinions or interpretations contained in this report are based upon information and material supplied by the client for whose exclusive and confidential use this report has been made. The analytical E 1 results. opinions or interpretations expressed represent the best Judgment of Core Laboratories. Core Laboratories, however. makes no warranty or representation, express or Implied, of any type, and expressly disclaims same Q � y as to the productivity, proper operations or profitableness of any od, gas, coal or other mineral, property, well or sand in connection with which such report is used or retied upon for any reason whatsoever This report % shall not be reproduced, in whole or in part. without the written approval of Core Laboratories. Petroleum Services Division 6316 Windfern ' Houston, Texas 77040 USA Tel: 713 - 328 -2673 Fax: 713-328-2170 Core L.iab www.corelab.com RESERVOIR OPTIMIZATION 1 August 27, 2009 Mr. Bernie Schwartz ' Anadarko Petroleum 1201 Lake Robbins Dr The Woodlands, TX 77380 1 Reservoir Geology File: 090207G Dear Mr. Schwartz, ' This report presents the results of thin section petrographic, scanning electron microscopic (SEM) and X -ray Diffraction (XRD) analyses of rotary sidewall core samples from the ' Anadarko Wolf Creek 4 well, North Slope, Alaska. The objective of the study is to characterize the general fabric, the framework mineralogy and texture, authigenic constituents, and the pore system of each sample. 1 Table 1 lists the analytical program for the sample set. Twelve (12) thin sections were described and point - counted. Six samples were studied using SEM imaging. Figure 1 shows the point -count based classification for the more sandy and silty samples. The representative micrographs and the point count data are presented on Plates 1 - 12. Porosity data is included for several samples where available. Point count data for all the samples is summarized in Table 2. XRD analysis to determine bulk mineralogy and ' separate clay mineralogy was run on eighteen (18) samples. The results are reported for each thin section sample (Plates 1 -12) and summarized on Table 3. Sincerely, Y 1 Mary Neils Geologist Core Laboratories Petroleum Services 713- 328 -2539 E -mail: mary.nelis(a7corelab.com 1 1 1 CLB NYSE 1 1 Introduction 1 This report presents the results of thin section petrographic, scanning electron (SEM), and X -ray Diffraction (XRD) analyses of rotary sidewall core samples from the Anadarko Wolf ' Creek #4 well, North Slope, Alaska. Objectives of the study are to classify each rock sample, characterize the general fabric including bedding style /bioturbation, identify the framework mineralogy and texture, describe authigenic constituents, and the pore system of each sample. Table 1 lists the analytical program for the sample set. Thin sections were ' described and two representative photomicrographs were taken of each as shown on Plates 1 - 12. Six samples were studied using SEM. Samples were chosen to include those for which both a thin section and XRD were also available. XRD analyses used to ' determine bulk mineralogy and clay -size mineralogy were run on eighteen (18) samples are reported in Table 3. Porosity data is included on the Plates for several samples where available. Table 2 lists the results of the point count, and data is also recorded on each ' plate. Petrographic Summary 1 The twelve samples examined in thin section from the Wolf Creek #4 well include one mudstone (2447'), three siltstones (2297', 2329' and 3171'), two argillaceous sandstones (2086' and 2135'), and six sandstones (2050', 2058', 2084', 2148', 2858' and 3222'). Mudstone (2447') 1 Composition and Fabric Sample 2447' is distinctive for its tan to brown, disrupted swirly fabric (Plate 9A) in which ' clay is aligned in patchy domains with uniform extinction in crossed nicols. A single burrow is present in the sample (Plate 9B). Silt content is very low. Organic material occurs as large deformed plant fragments (Plate 9) and is also evenly disseminated throughout the mudstone matrix. Organic material is recognized by its brown color and association with 1 pyrite. Pore System Characteristics ' Measured porosity information is not available for this sample. Visible macropores are not present. No SEM observations were made on this sample. Siltstones (2297', 2329', and 3171') Composition and Fabric ' Planar lamination is present in samples 2297' and 2329' (Plate 8). Faint wispy organic stringers define a faint lamination in sample 3171' (Plate 11). The grain size is coarse silt (0.038 mm), with minor amounts of fine sand grains within siltier laminae. Bioturbation (Plate 11) and burrows (Plate 7) are present in the siltstone samples. XRD data is available for sample 2297' and indicates that this sample has 41 Wt. % clay including illite /mica, chlorite, illite /smectite and kaolinite. Muscovite and chlorite (Plates 7B, 11) can also occur as detrital ' minerals and within lithic grains. Plant fragments, phosphatic grains and glauconite are observed in samples 2329' and 3171' (Plates 8, 11). Rarely, fine- grained lithic sand grains can be distinguished (Plate 11). 1 1 1 1 Authigenic Constituents Authigenic dolomite is identified in Sample 2297' (Plate 7B). Kaolinite listed in the XRD analysis is probably grain - replacive. Rare quartz overgrowth cement on silt grains is ' identified by euhedral terminations (Plates 7B,C). Pyrite occurs with organic material and occurs thought the matrix. Siderite reported on XRD for sample 2297' is probably of authigenic origin. 1 Pore System Characteristics Measured porosity and permeability values are available for sample 2297' (4.05% porosity ' and 0.0003 and permeability). These results are consistent with the lack of visible macropores in thin section. SEM examination shows a micropore system within the detrital clay. Argillaceous Sandstone (2086' and 2135') Composition and Fabric The two argillaceous differ mostly in their depositional fabrics. Sample 2086' is upper fine grained sandstone interlaminated with silty shale (Plate 4). Planar to massive laminated ' sandy layers are transected by argillaceous cross - laminae. Compaction is minor to moderate, and greater in the shaley laminae. The sandy layers show compaction prior to cementation. Average grain size is 0.245 mm (upper fine sand). Point -count analysis indicates that the sandstone is a litharenite (Figure 1) and lithic grains include, in decreasing order of abundance, metamorphic grains, volcanic grains, argillaceous to silty grains, with minor chert and carbonate grains (Table 2). Quartz grains make up only 19 Modal % based on point count analysis. Quartz and plagioclase are common constituents of both the volcanic and metamorphic lithic fragments. Sample 2135' is finer - grained (avg. grain size 0.142 mm), planar laminated with rare laminae composed of abundant argillaceous rock fragments and deformed rip -ups. The sample is well compacted with 1 evenly distributed intergranular detrital clay. Detrital clay content from point count analysis compares favorably with XRD data for ' sample 2086'. For sample 2135' point -count clay content is lower (12.8% Modal %) than the total clay content (27 Wt. %) obtained by XRD analysis, which reflects the difficulty of making the visual distinction of clay as one moves to siltstone sized material and because the clay are more uniformly distributed. These textural differences can also be observed in 1 the SEM views of these samples. Plate 4C shows larger detrital grains and Plate 5C shows detrital grains floating in a more uniform illite clay rich matrix. Authigenic Constituents The sandy layers of sample 2086' exhibit authigenic kaolinite grain - replacement, and partial quartz cementation (Plates 4B,D). Illite /smectite clays are visible in Plate 4D. Authigenic pyrite occurs in minor amounts as small framboids. Ferroan dolomite is present in minor amounts in sample 2135' (Plate 5). 1 1 Pore System Characteristics 1 The detrital clay -poor sandiest laminae of sample 2086' have moderate primary intragranular pores although a porosity measurement was not available for comparison (Plate 4B). Many pores throats are clogged by detrital clay, and compaction. A micropore system is present ' within intercrystal areas of authigenic grain - replacive kaolinite (Plate 4 B, D) and within the detrital clay matrix (Plate 5D). Sandstones (2050', 2058', 2084', 2148', 2858' and 3222') 1 Composition and Fabric: The six sandstone samples in this study are massive to faintly laminated. Grains are well ' sorted and range in size from 0.122 (Upper very fine) to 0.33 (Lower medium sand). Grains range from angular to rounded, with larger grains showing better rounding. Compaction is moderate with point contacts and some long contacts. Ductile grains show some deformation (Plate 2B). Framework grain composition details are provided in Table 3, and are summarized on Figure 1. Based on the classification system of Folk (1980), these sandstones are all litharenites. Monocrystalline quartz content ranges from about 18 -39% based on the point count results. K- Feldspar is rare in all the sandstones. Plagioclase content is minor in most of the sandstones, except in Samples 2858' and 3222', where both XRD and point count results reveal up to 13% plagioclase. Lithic fragments are common to abundant in all the sandstones. Metamorphic fragments (Plate 1 B) are generally most abundant, followed by volcanic fragments (Plate 6B) that include siliceous lithotypes, or chalcedonic amygdule textures (Plate 2B). Chert (Plate 3B) and argillaceous (Plate 2B) rock 1 fragments are present. Authigenic Constituents 1 Quartz overgrowth cement (Plates 1C, 10D) ranges from 6 -7 Modal %, based on the results of point count analysis (Table 3). K- feldspar overgrowths occur in trace amounts, consistent with the low detrital K- feldspar content of the samples (Plate 10A). Minor amounts of authigenic grain replacive albite are present in some samples, replacing unstable detrital feldspar. Authigenic clays include kaolinite, chlorite, and kaolinite occurs as both grain replacing phase (Plate 10B) and pore - filling cement overprinted by quartz overgrowths (Plate 1D). Grain coating chlorite is most abundant in the deepest sample (3222') as crystals oriented ' perpendicular to grain surfaces, and as small spherical rosettes (Plate 12D). Lesser chlorite is observed in Sample 2858' (Plate 10D) and minor amounts are found in the shallowest sandstone samples. XRD results show a trend from 8 Wt.% chlorite in the deepest samples, to 4 Wt. % in the shallower samples. The discrepancy between XRD and point count results is a reflection of the mode of chlorite as very thin grain coatings that are not always discernible in optical microscopy. 1 1 1 1 1 Pore System Characteristics 1 Primary intergranular pores occur within all the sandstones samples. They are reduced by both compaction and quartz overgrowth cementation. Rare moldic pores formed by dissolution of unstable heavy minerals such as homblende (Plate 12B). Intragranular pores occur within partially dissolved plagioclase grains (Plate 6B) or volcanic rock fragments (Plate 2B). Micropores are present within authigenic kaolinite (Plates 1D, 12D). Porosity and permeability values are only available for sample 3222'. Measured porosity is 14% and permeability is about 2 md. The point count porosity values for samples 3222' and 2858' are lower, possibly because micropores cannot be counted, and both chlorite and kaolinite are present in the primary pores of these two sandstones. The point count porosity values for the remaining sandstones are in the low teens, comparable to the measured sample 3222'. 1 Thank you for choosing Core Laboratories to perform this study. Please feel free to 1 contact us if you have any questions or comments concerning this report. 1 Sincerely, Mary Nelis Geologist Core Laboratories Petroleum Services 713- 328 -2539 1 E - mail: mary.nelis @corelab.com 1 1 REFERENCES Folk, R. L., 1980, Petrology of Sedimentary Rocks: Hemphill Publishing, Austin, Texas, 1 p184. Wilson, M.D. and Pittman, E.D., 1977. Authigenic clays in sandstones: recognition and ' influence of reservoir properties and paleoenvironmental analysis: Joumal of Sedimentary Petrology, Vol. 47. p. 3 - 31. 1 1 1 1 1 1 I ANALYTICAL PROCEDURES Thin Sections I Thin sections were prepared by first impregnating the samples with epoxy to augment cohesion and to prevent loss of material during grinding. Blue dye was added to the epoxy to highlight the pore spaces. Each thinly sliced sample was mounted on a frosted glass slide and then cut and ground in to an approximate thickness of 30 microns. The thin 1 sections were analyzed using standard petrographic techniques. Scanning Electron Microscopy (SEM) I Scanning Electron Microscopy (SEM) was conducted on freshly broken rock surfaces. Each sample was mounted on an aluminum stub with silver paste so that the freshly broken surface was exposed. The samples were coated with gold (Au) or gold /palladium I (Au /Pd) alloy using a Hummer Jr. Coating Unit. The SEM photomicrographs are secondary electron images taken digitally with a camera attached to a Hitachi S -2400 Scanning Electron Microscope operating at 20 kV. Qualitative elemental data on selected minerals observed during the SEM study were obtained through the use of an interfaced Energy 1 Dispersive Spectroscope (EDS) equipped with a Si (Li) detector. Recognition of any authigenic clays was based on the criteria proposed in Wilson and Pittman (1977). I X-ray Diffraction Analysis (XRD) Sample Preparation: Samples submitted for whole rock and clay - fraction XRD mineral analyses are first cleaned of obvious drilling contaminants and then disaggregated in a I mortar and pestle. Approximately five grams of each sample are transferred to isopropyl alcohol and pulverized using a McCrone micronizing mill. The resultant powders are dried, disaggregated, and packed into aluminum sample holders to produce random whole -rock mounts. A separate split of each sample is dispersed in a dilute sodium phosphate I solution using a sonic probe. The suspensions are then centrifugally size - fractionated to isolate clay -size ( <4 micron ESD) materials for a separate clay - fraction mount. The suspensions are then vacuum- deposited on silver membrane filters to produce oriented I clay mineral aggregates. Membrane mounts are attached to stainless steel slugs and exposed to ethylene glycol vapor for a minimum of 24 hours. Analytical Procedures: XRD analyses of the samples are performed utilizing a Scintag or I Philips automated powder diffractometer equipped with a copper source (40kV, 40mA) and a solid state or scintillation detector. The whole -rock samples are analyzed over an angular range of 2 -60 degrees 2 -theta at a scan rate of one degree /minute. The glycol - 1 solvated clay - fraction mounts are analyzed over an angular range of 2 -50 degrees 2 -theta at a rate of 1.5 degrees /minute. 1 The analytical results, opinions or interpretations contained in this report are based upon information and material supplied by the client far whose exclusive and confidential use this report has been made. The analytical results, opinions or I interpretations expressed represent the best judgment of Core Laboratories. Core Laboratories, however, makes no warranty or representation, expressed or implied, of any type, and expressly disclaims same as to the productivity, proper operations or profitableness of any oil, gas, coal or other mineral, property, well or sand in connection with which such report is used or relied upon for any reason whatsoever. This report shall not be reproduced. in whole or in part, without the written approval 1 of Core Laboratories. 1 1 I I I TABLE 1 Anadarko, Wolf Creek #4 Well I ANALYTICAL PROGRAM •-::',.;',': 7. '. • . .:4:; ,- 0 . 0::::',:‘.r-:.• I .,.,.; ..:- - ,,,,,_-,,.,,,., ..,..•,: ..,::-,:'! T 2043 I X I 2050 X I X t X H I-- 2055 X I 2058 X .4. I 2060 i t X ...._I_ I X 2070 2067 - i- .. I. i ___ I 2077 I X 1 I _ _.... - X 2084 X I I 2086 2135 X X 1 X I 2148 X T 1 2166 I X ___ ------- I 2181 __ , - I I X X 2285 4 , I 2297 X 2329 X I X X _ I - I 2447 X , .,.. X 2535 X ......_ I _ 2858 3102 X X X X --------- 3171 X I 3222 X I X ..., X I 3226 I I X I I I E OM MI MI MN M- i ME MI N OM ME UM r ME - OM TABLE 2 PETROGRAPHIC DATA Anadarko, Wolf Creek #4 Well ,t , 0 1 vt c r v i i( 1 v . r c c 1 x o' 1 d 1 1 ", .. $,, , o N w 1 t 1 a N I a a 1 ° c ' c I S '� ? m o , g , t 1 T 1 m � + I E ; 2 , c � �P � 2, Y 2, V a a o : &' , . i '"; U S 1 L L v l_ { -1 1: j - ., - 1 t , 4 m , G I N i o I E: 3 -tit n I' v 'a 5 m 1 �� Ys Nl 1' ";` ' ' ~ w 88. � b m E 1 z 0 o I a ., o o o o o a b c o a a o , 4 o .b o 3. $ .° a r 8{ r �IQir r u r �( fJ 1 I3 t - c � s � ZS� ��ti F c a� �r o f �. };fin ) r } °: a � 11 2050 31 38.9 00 1.9 10.3 1021 10.3 22.8 22.9 0.0; 0.0 1.5; 1.611.9 0.0 3.4 38.6108 0.8 0.0 O9i0.0 0.0 0.0 0.0 0.0 0.0 1 0.0 1 78.8 OA 1 0.0 00 0.80.8 6.9 0.0i 6.9 0.010.0 0.0 00 0,0 6 . 0 0.0 6.9 7.8 11..5 N.5 0.8 1.1 0,4 2.3 19.7- , + f 1 2058 37.616.7 43.2 1 . 1 . • 4.9 4.9 19.7 10.7 0.0 0.0 1.511.56.7 00 7.2 31.8 00'0.0 0.8 0.810.0 1.5 0.0 0.0 , , 0.0 0.0 78.4 0.0 0.0 0.0 6.7 0.0 5.7 0.0 0.0 0.0 '' " 0.0 O.OI 0.0 5.7 6.4 ' 0.0 3.0 2084 27.3 94 36.7 0.8 • 8.6 8.9 24.6 2 4 . 8 0 . 0 0 . 0 1 . 8 1 1 . 8 4 . 7 0 9 6 . 3 3 9 5 0 0 0 . 8 0 . 0 0 . 0 0 . 0 0 . 0 0 . 0 0 . 4 0.4 0 . 4 80.1 0.0 0.0 0.0 0.01 0.0 79 0,0 7.8 0.0 0.0 0.0 ' ' ' 0.0 0.0 0.0 7.8 7.8 . 0.0 1.8 1 2088 18.2 7.8 26.0 OA . 8.8 8.6 21.8 21.8 1 1 . 8 4 . 1 1 4 . 1 2 , 8 0 . 0 6 . 2 3 0 . 3 0 . 7 1 . 1 0 . 0 0 . Q 0 . 9 0 . 0 3 . 7 0 0 2 0.4 0.4 71.0 20.8 20.8 0.0 0.4, 0.4 0.7 0,0 0.7 00 0.0 0.0 1.1 1.9 1.9 3.7 4.1 0.0 1.5 2135 17.3 7.9 25.2 2A 9.1 9.1 27.8 27.8 0.0 0.0 4.7 4.7 2.4 0.0 7 . 1 43.7 0.8 1.6 0 . 0 1 . 8 0A 2.4 0.4 0.4 0 0 0 . 0 8 1 . 9 1 2 . 8 1 2 . 6 0 . 0 0 . 0 1 0 . 0 0 . 4 0 . 0 0 . 4 0 . 4 0 . 0 0 . 4 4.7 0.0 0.0 5.5 5.5 ' ' 0.0 0.0 2148 30.0 7.8 37.7 OA M®�M��� 0.0 0.0 0.0 0.0 6A 0 0 0.0 0 . 0 0 . 0 0.0 0 . 0 0 . 0 0.0 0 0.0 77.4 0.4 0.4 0.0 0 0.0 0 . 0 0 . 0 0.0 0 . 0 0.0 0.0 0.0 8 . 0 0 8 1 2 D 0 1.9 en 2858 17.0 I 21.7 ��� ®® 00 �� 0 0.0 � 0 . 0 'Rim 0 . 0 rn 0.0 0.0 0 . 0 rs 0.0 0 . 0 0 . 0 81.5 1.8 1.8 0.4 15©0/ 0.4 0.4 0.7 1.1 0.7 1 0.0 0.7 0.0 0.0 r 0. pip, 1 0.7 1.8 re 3222 17.2 ®����� 20.6 20.6 0.0 0 .0 8 .0 '®' 0.0 �® 0 . 0 0.0 0 . 0 ',NEI 0.0 0.4 i 0.7 0.0 0.0 83.9 0.0 00 0.4 ®gn1111 0 .0 PI 0 .0 riNn 0.0 0 .0 0.0 0.0 0.0 Inni ri 04 0.0 OA 0 .7 ®; 1111. 1111111 111111 I— i OM OM N — — — — O — — — ME Anadarko Reservoir Geology Wolf Creek 4 Petroleum Services North Slope, Alaska Core Lab Table 3 Job # Hou: 090207G Analyst: R.Godley Job # BR- 090401 -3 X-Ray Diffraction Data Date: 4/3/2009 Depth Bulk Mineralogy ( %) Clay Mineralogy ( %) (ft) a) m R .o y a °: cis Q. L° ::. E E x .- y �' * *..� o 'B E - a o U N >. Y r a) U c U - m — R rn i n o d Y c R a s •c - = ;a o o cJ d . E �a o 6 c •- c > c R R o R — E K cn K C! a Y U D lA Q U < C7 Q m = a 0 1— Y U = to 2 o 5 2,043 89 2 Tr 0 Tr 0 0 0 0 0 0 0 Tr 0 0 8 3 1 3 0 1 20 -30 2,050 80 3 Tr 0 Tr Tr 0 0 0 0 0 0 Tr 0 0 17 5 4 6 0 2 20 -30 2,055 85 3 Tr 0 Tr Tr 0 0 0 0 0 0 Tr 0 0 11 2 3 5 0 1 20 -30 2,060 84 2 Tr 0 Tr Tr 0 0 0 0 0 0 Tr 0 0 14 3 3 6 0 2 20 -30 2,067 88 2 Tr 0 Tr 0 0 0 0 0 0 0 0 1 0 8 2 1 3 0 2 20 -30 2,070 91 1 Tr 0 0 0 0 0 0 0 0 0 Tr Tr 0 7 1 1 3 0 2 20 -30 2,077 76 7 1 0 0 Tr 0 0 0 0 0 0 Tr 0 0 16 5 3 6 0 2 20 -30 2,086 71 4 1 0 0 1 0 0 0 0 0 0 Tr 1 0 23 4 5 11 0 3 20 -30 2,135 58 10 2 0 1 1 0 0 0 0 0 0 0 0 0 27 4 7 11 0 5 20 -30 2,166 86 5 1 0 0 Tr 0 0 0 0 0 0 Tr Tr 0 8 4 1 2 0 1 20 -30 2,181 89 2 Tr 0 0 Tr 0 0 0 0 0 0 Tr 0 0 9 3 2 3 0 1 20 -30 2,285 83 5 Tr 0 0 Tr 0 0 0 0 0 0 0 1 0 11 5 1 3 0 2 20 -30 2,297 45 10 1 0 1 2 0 0 0 0 0 0 0 0 0 41 5 12 16 0 8 20 -30 2,535 74 10 1 0 0 Tr 0 0 0 0 0 0 0 1 0 14 5 2 4 0 3 20 -30 2,858 65 13 1 0 0 Tr 0 0 0 0 0 0 0 0 0 20 2 8 7 0 3 20 -30 3,102 66 14 1 0 Tr Tr 0 0 0 0 0 0 0 0 0 18 1 10 5 0 2 20 -30 3,222 73 10 1 0 0 0 0 0 0 0 0 0 0 Tr 0 16 5 8 2 0 1 20 -30 3,226 74 8 3 Tr 0 0 0 0 0 0 0 0 0 0 0 14 5 5 2 0 1 20 -30 Tr = Trace (<1%) *MXL IS = Mixed -layer illite - smectite * *Drilling mud contamination I I FIGURE 1 Sandstone Classification (Modified from Folk, 1980) I Anadarko, Wolf Creek #4 Well Quartz 5% A Quartzarenite ' Subarkose Sublitharenite 25% ' 0 6 0 ' O ' O S Arkose Lithic Arkose Feldspathic Litharenite Litharenite 1 1 13 Feldspar Lithics I 1 PLATE 1 - THIN SECTION PETROGRAPHY %'. III Porosity Anadarko v (� ra Well: Wolf Creek #4 Permeability (md): na Location: North Slope, Alaska Grain Density (g /cc)- na Depth (ft): 2050 Lithology Sandstone A Rock Name and Texture r t • Classification (Falk, 1980): Litharer.ite N a ', • . '/ �.� ; s� • 4--••••'. , t, § k=,:. "` ''• , , . Grain Size (mm): 0.2.22 (Upper fine sand) • d # ` yp s.`� ' ` Sorting: VUell • " r +ka,^' x R �:• •' Roundness: A. nyular- Subraunded t �• Compaction: Moderate ! "5 - si " ,, j ,' , Structures Massive r a a r y } J „ r . te r #ik •' - 4 f , d c" R ock Composition (Point - , Y. , f, ` 1 ✓ Framework Grains: .. :' 4 t ,r ' ` ifr . Quartz-mono 31.3 ArgiII RF 1.5 • 4=, '!! 1 • Quartz-poly 7.6 Chert 1,9 • ,k. Y !� t A:-•;:•..,,4-, r � ;,; o ' • ^ K- feldspar 0.0 Muscovite 0.8 k/'''''-''' ' .4!' ' � ' ; •:.,-. Plagioclase 1.9 Heavy Min. 0.0 • .. r ` , w ai! . M RF 22.9 �lauconrte GA ' ! - �" !�° Volcanic RF 10.3 Kaol. Gn Repi. 0.0 • -t om Aill? r Carbonate RF 0.0 Plant detr. 0.0 • J X.- c./...."''... *, ?h h jit :y Detrital Matrix: i, ' .r - r y ., x,: � ,� * y ` Clay Matrix 0.0 y�, ,. -j:- t. t°. • t .: -, ., . ' r 'r� ` • a *.. Authigenic Minerals: �; w u : 4 C '- ' 17, r • « S Quartz Ov. 6.9 Fe Dolomite 0,0 �. term ° � t , . - • , ' .- Ksp. Ov. 0.0 Siderite 0.0 • Alt..). r r ' - r � ,r 0 5 mm r. Albite 0.0 Pyrite 0.0 •-1_,, ' ;.r" r • Kaolinite 0.8 Chlorite 0.0 B Porosity: Prim.lntergran 11.5 Intragran.Plag 0.8 ;;;.:0--,,;- 1 ''''''q'' .4 q : . f � Intracryst. RF 1.1 Oversized 0.4 . ° . ujs z r ' ; {, H EE Sce.2 j • ,, p2 24 t , • +, , , . �i XRD -Whole Rock Mineralogy (Weight %1 d ?"� Quartz 80 Siderite 0 y rf � 'r _ °�*� �s, � � ( ��J ' r �,, �tY�fy�" K-Feldspar 0 Pyrite 0 . , a `? 1. F , .. t Y �z: • • Plagioclase 3 • � 'r6rra:. ti S. x x 1' ,D Cc �c t? •tlr Dolomite 0 Total Clay 17 s , . t..,r 'L ,1 ;,t arX`, i ' C lay Abundance (Weight %) ' rr k ;' r' / Illite / Smectite 2 Kaolinite 5 r4 , a 11 A :, / 14 y . ' iV . Illite &Mica 6 Chlorite 4 5 1 ,, ' -4 x4 t ; r { • • r 1 � .. k ., q %smecfite in mixed layer rllite/smecite is 20 • #g 4 s i s.? r r , ,, / .' Petrographic Description �. '- ° •; , , g i , t " � (} The thin section sample is a clean, well - sorted r E yf v,~3 � � 'k� 1 . , sandstone composed principally of detrital quartz (A; , . 1 , • y a ry•,i'i r Wi • white grains), with abundant metamorphic (A,B; MRF) • s '. , " } '- :. and lesser volcanic (A,B; VRF)rock fragments. Primary m ;r , r - intergran pores are highlighted by blue- stained • - r � q epoxy. Grain contacts generally exceed 2 per grain, and i ,� t> 1 , ' 4 ' n t y ' � � , • +. h • many contacts are long, indicating compaction of the ' . ' ' c ••'ask, t 1. ' . .:t 0.1 mm original sedim Primary intergranuiar pores are also • r :• • ;�', • f' l,,, • .,�s � partially occluded by post - compaction, partial quartz • overgrowths (A,B; Go). Deformed, altered volcanic Relative Abundances: lithic grains (B; VRF -mp) have minor intragranular Trace <1% micropores, as indicated by the "blue haze" coloration. Minor 1 - 5% Moderate 5 - 10% Gone L Common 10 -20% IltSt a,sz°rtmriw Abundant >20% PLATE 1 - SCANNING ELECTRON MICROSCOPY Company: Anadarko Porosity ( %A): na Well: Wolf Creek #4 Permeability (md): na Location: North Slope, Alaska Grain (Density (g /cc): na Depth (ft): 2050 Sample ID: na Lithology: Sandstone C Rock Name and Texture r[- - y t a j+ ' Classification (Folk, 19.80): i.itharenite Y +r � € ` • , vi : Grain Size (mm): 0.222 0 a...i x r Sorting: Well 4;‘,, +' I f �"` °+ ` a Roundness: AngularSubrounded --"\-----.._.".,--...-- � Co�mpaction: Moderate .- ' V , - 71-1 - :'1" 1 , ad' _ , .; .fir, s , t '. 14 : 4... , . Structures: Massive ' f a aµ a M inerala De termined b X -Ray Diffraction ) 1r, —, `� '1,i { i' :e. F� tp Mineralogy Y v , i 4 • • I ` � `� . yam .''41/4., ..�jr..S- " " o hs. FJ ., r „ , . .:i'$ {We'}U.ht %� i . � k l i - t y till ^`tiL 1r.Q ti 1 .. , 1 �' d , ✓'' O Qo ; \\\\ A ' ,,, /. as / \ 'i - 111 D _ 4 5 . ' `' i f ,� E . f a • Quartz CI K- Feldspar ❑ Plagioclase t. . ` ` : ' - F ' 1 / MI Calcite 1119 Dolomite ® Siderite • r D Total Clay • Pyrite ❑ Mite / Smectite l d f � t { O Illite & Mica ■Kaolinite Chlorite { XRD -Whole Rock Mineralogy (Weight %) . , `ry - ; r Quartz 80 Siderite 0 ` yt ; T _ i "' K- Feldspar 0 Total Clay 17 .. , x' „, 4 " Plagioclase 3 Pyrite 0 r f r . Pj' , ��1A . Calcite 0 Total Clay 0 r' ./ i ,� ' _ , t •'L Dolomite 0 �� " " � �' �` � � �.� c rC . � Clay Abundance (Weight %) j � ,' ter, r i3� rfi ( Illite / Smectite 2 Kaolinite 5 / , , � ; - '' s ,,..,� •. �y r Illite &Mica 6 Chlorite 4 j aY c 3 j - , ` rl %smectite in mixed -layer illite /smecite is 20 -30 I ,' ,/. r y . Petrographic Description r l r 6i @ { ? '' ". .!.' A primary intergranular pore (C; P1) is lined with I " ��'�� � � � , ; Y I quartz overgrowths cement (C, Qo), Detrital clay • r , - >r � r• ^� � r"a matrix (C; DM) occurs close to the junction of two J� ,; T ,/ .r f: 4 0 .. i' r ;. ' i - �' grains A rock fragments with abundant platy clay } j=- ' ' '_.2%' i r minerals (C; RF) is probably comparable to one of the — >„ r �+ e) � .- - ' ,,/f; �r dark lithic fragments in Plate 1A. Authigenic kaolinite • •. F . " -- 411''x y •F ,'ra z ' (D; kaol) occurs with quartz overgrowth cement (D, - / h �t• .x , ° - i Qo) in the detail view of a pore. Micropores (mPO are ,<< � , 4, ,- /7 / : f : ,T, '- ° persent in intercrystal areas of authigenic kaolinite and detrital clay �m nm Irr PLATE 2 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( %): 15 7 Well: Wolf Creek #4 Permeability (md): 51.2 Location: North Slope, Alaska Grain Density (glee): 2.66 Depth (ft): 2058 Lithology: Sandstone A Rock Name and Texture r r t .......t.1:41 • . y k' �e,ys = Classification (Folk, 198( Litharenite �+• , a , Grain Size (mm): 0 321 (Lower medium sand) • /.k� ' , h , ;,,fit 4 l • ►� . •' f. # Sorting: Well 1, s / Roundness: Angular - Subrounded • r & p • i , r " • r ' 4,. w0; 11 - l , Compactio Moderate • + ,„r. r= Structures: Massive 1 , c. , ) ,,, ,,. 4,,,,„ r , c :I.. ' N . .1 t - - , ./k)',. - •- . ; , ,' 0 .., .. e - t Rock Composition (Point - Count ' � w�a � 1. W , � f , J' hi��, 4 • � Framework Grains: `Tv 4 1 ti F� :'' Qu artz -mono 37.5 ArgiII RF 1.5 ( A r c 1Y i , - } �1,,t ~ 4-11,,,' ¢ 'f' ' .r� n Quartz poly 5.7 Chert 5.7 ,... V ' • :�' - , K- feldspar 1.1 Muscovite 0.0 ac � � f+ Plagioclase 0.8 Heavy Min. 1.5 i°' , � ` st MRF „ K . , '! Metamorph. RF 19.7 Glauconite 0.0 y • , 1� ,' A . ti .' r '4� «d '', Volcanic RF 4.9 Kaoi. Gn Repl OA • • �1"d� Carbonate RF 0.0 Plant detr. 0.0 VIEW QO '' ', , 1 . , '� -.1. Detrital Matrix: ,, . , , `' r % � ,, "•.' , �• , Clay Matrix 0.0 r 't r ;� Authigenic Minerals: r;.. ` ��, , :': Quartz Ov. 5.7 Fe Dolomite 0.0 ; • ' , Ksp. Ov. 0.0 Soderie 0.0 •• :.,,k,,;, . 4 s , .. 1 0.5 mm Albite 0.0 Pyrite 0.0 s a ', ; ; " r ' *+ ` ,' : , co .P Kaolinite 0.8 Chlorite 0.0 ll B Porosity: • '' N . � i r ` 3 ti , 'i, '� , , n i ` / � Prim. Intergran. 12.1 lniragran.Plag 0.0 pN � ' Y4 - •;, `�, + • pli \ • ,, ,;,i Intracr RF: 3.0 Oversized 0.0 . • i . - Y4..+ t.y tn9 r p. 'r , ,,, :9 . 4 0! 3` :; -. ' , Ii-y . '• ,~ . 1 , • Y` ail r .-, J '' •vy w t: � t iL Y ` < •'� � t 3 'l a 1 , • -/ : A•;' * t �� f . r,� s , ` .� ' x ,Y , .r.' • XRD-Whole Rock Mineralogy (Weight' /°) E , :SV a ` '1, ;),. . r �� t ` . .l ., 3 • % t : ° Quartz na Siderite na ■ ar • 'ei 7rp I �� r . � 4 '3' r t �e`'. K- Feldspar na Pyrite na - 4,1-'' ' ;3.:'-41t , r''',*' ✓ y Y ; C ? + '�'1>Y � '. ct" sfi�` a A , l',"• F� , •' Plagioclase na :�� "� R f . i� & Dolomite na Total Clay na I .s ;.',V,,,'"1.7.01 4' .' y p /. .yr` € . y ,t;', ., = f ° Clay Abundance (Weight %) t ' ! /1',",.1,';i,. r " Illite / Smectite na Kaolinite na i ' rr �' 1 ' l ,4,.. " ' t , 1 G \. r,,;e �� , (,,, i s , 1` Illite &Mica na hlorite na • , 4.-;,,.... � , 1 , 4, `T` " r - 3 PJ , is l o ; ti, %smectite in mixed -layer iliite /srnecite is • / P !Y„ � r ' 'T ` r F 41. r� . is ', k ' f r 1 , Petrographic Description •i �` f 4 ` r � r f r t '• '' l ' ' k , " ' .. a The thin section sample is a niell sorted medium - grained � a + y?g � �t : - f ,t�K � ;u v 1 . sandstone with weak compactional alignment of grains. ` j F s �, . ' t ,•;i , iF' 4 1 y ` ,, "' � * ▪ ,1 i ' ` The most common detrital grain type is quartz, IE t��. x, 1 ' , {` p/- Oy `1 ;� ., y , r; quartzose metamorphic grains, and lesser volcanic • ;'' # ^ { 1 ; .; 4 i ' � j ^ y , `0. ■ ' ° 1 ` ' grains which often show alteration and micropores. l ∎ P AI 4 rk ��(� 0 Plagioclase grains are typically vacuole rich and "dusty" �vf,t m A ' [Z . on ' appearing (A; PIa Primary inter granular A,B; y 9 ( 9)• rY pores 9 P j .' -E " : t 'III ` ' , ' + • 0.1 mm blue epoxy) have been reduced by moderate �rR 3 +,v;t l "� compaction, and thin partial quartz overgrowth cement .. . as (A; Qo). Arglllaceous rock fragments are deformed Relative Abundances: within intergranular pores (B; AFtF). intragranular pores Trace <1% 1 -5% (B; IP) and microporosity occur within volcanic grains Minor (A; arrows). Moderate 5 -10% I Core Usti Common 10 -20% , RESERVOIR eVIIII.T N Abundant >20% , i PLATE 3 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity (%): 156 I Well: Wolf Creek #4 Permeability (md): 33,6 Location: North Slope, Alaska Grain Density (g /cc): 2 Depth (ft): 2084 Lithology: Sandstone A Rock Name and Texture ' ` 1 .4. ! 4 � } r �d Classification (Folk, 1960): �mtearenite • O, f c • ' 0 . Grain Size (mm): 0..307 (Lower medium sa 1 r + , ' , Sorting: Well Subangular- Rounded '` A _ Roundness: • `. r ./ .'t Compaction: Moderate l \, '' f, ; f ,s f '� �x.s Structures: Massive i • 'F " ' Rock Composition (Point Counti ° 1 4 1 t "' T Framework Grains: j�i1 \ i;: Quartz -mono 27.3 Argill.RF 1.6 yr `� " ° r •: Quartz -poly 9.4 Chert 4.7 4 ie * 3�r ! K feldspar 0.8 Muscovite 0.0 4'. . •- a ,, ... fi Plagioclase 2.3 Heavy Min. 0.0 } il Metamorph. RF 24.6 Glauconite 0.4 i \ �...�,;. It''''.- d � � , , a - + +�5� Volcanic RF 8.6 Kaol. Gn Repl 0.4 r ,gi a \ Carbonate R F 0.0 Plant detr. 0.0 r, 'S r " S.Z 3 F 4 , z v r P Detrital Matrix: 4 y 1 : k ; Clay Matrix 0.0 r },, z a r r •: � � * � t i t • AUthigenicMlinerals: a 1,4 ',4/116 * + j Quartz Ov. 7.8 Fe Dolomite 0.0 ' •'. ' Ksp.Ov. 0.0 Siderite 0.0 j g �., , � ` 0.5 mm Albite 0.0 Pyrite 0.0 ` ; x r A r 1 ` `?f , l-, a Kaolinite ,... 0.0 Chlorite 0.0 I B Porosity: VIA: v r \ 4 ' tr Prim. Intergran. 10.5 Intragran Plag ' ' ?r 'e .g ' Intracryst. RF: 1.6 Oversized • ' Mq ..d - 4 - r XRD - Whole Rock Mineralogy (Weight %i 4i. :. . . � ` y � . ;� a" Quartz na Siderite na .h s � t' $ K- Feldspar na Pyrite na �' r ' +? "+ ( 1 Plagioclase na - ' �. t '' , ,' a cv Dolomite na Total Clay na i : 7 } ° 1.,';---: �er M 4 s Clay Abundance (Weight %) y � a 4 1 i �, , r i F ' � � y Illite / Smectite na Kaolinite na • na 1 v s ' Illite & Mica na Chlorite y ( ' h a '`'" \ ;1;,; { e'- ; �� + a �'� \� 1 dy}.. •air -° aira 4..i i 1 I >C ' . k k'.F� .:„A , 1 1i w'� . 1.� ,5 �t 4,- SR,., � . ty{4 �� . �, ' -.'!. ! ; z A� , .s rt �, Y>rl ,� � � `' Petrographic Description ' r,+� e ,k . �,i i . : + " r The thin section sample is a well sorted sandstone � � r "' �` ; i . ',V <I •, tl,p%` 1 \ - 1 K with abundant quartz and metamorphic litho grains, f " �',. a C .,,��+ and lesser volcanic lithics. Several types of chert • r r I a�� `1'4 1 . v. a � 1 , � , -� -h grains (A,B; Cht) are also present and show sutured ! e t t "�y'-. {~ i ) ' rain contacts B; arrows or intragranular micro ores �. ‘.'.N1..,1,,..,,,, �>, -1:-.i. r s i 1 • } , � , y , �r " -' (B; Cht -mp). tntergranular pores of primary origin are • o , ` x , the most common pore type blue- stained e o I m '` ° .p � r > .< P YP ( P xY) �� h 4 \ �� >' �`n d 0.1 mm 4 although moderate amounts of quartz overgrowth • ,`.r " .4; '. .:.II.:/ .1 ' . _a « .. , ,,,,, ' _ „?, ,.. ", ; , , , _ ` - . ..,...,•• a _ 1 cementation has occurred (A; Qo) Plagioclase grains are typically partially altered to seric (B; Plag). Relative Abundances: ` Volcanic Ilan grains (B; VRF) can be recognized by Trace <1% yellow - staining of K- feldspar (B; VRF), and aligned I Minor 1 - plagioclase laths in crossed - polarized light. A Moderate 5 -10 Crime Ltd Common 10 -20% Rf5[M. IIPIIMIZAf19M Abundant >20% r PLATE 4 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( %): na Well: Wolf Creek #4 Permeability (md): na Location: North Slope, Alaska Grain Density (g /cc): na ft Depth (ft): 2086 Lithology: Argillaceolis sandstone p ( � A Rock Name and Texture y t ` rI 1 "` PIS ;+ ;': 444 Classification (Folk, 1980): Litharenite �' *T r A ti Grain Size (mm}: 0.245 (Upper fine sand) { 'f , . r ! Sorting: Wel and poor i� Well F q,y� y - c�M t Roundness: Subangular - Subrounded I " , . � ~ Compaction: J� �} r n' � ., °. Structures: Cross - laminated 1 A � , � x : � 1 Rock Composition (Point Count) c 1 ' µ Framework Grains: it' G wr y `k.`..'0.4.!...,.., " , - ' ., y Quartz -mono 18.2 Argill RF 4.1 , r , - .+� _ � . I . y .; a .' . Quartz -poly 7.8 Chert 2.6 • 4,'.., K- feldspar 0.4 Muscovite 0.7 ' ` * , ' - '' K. ` 4 Plagioclase 1.1 Heavy Min. 0.0 ' • K - G , ` 'C : '�` Metamorph. RF 21.6 Glauconite 0.0 ,4` q r i i Volcanic RF 8.6 Kaol. Gn Repl 0.4 Carbonate RF 1.5 Plant detr. 3.7 r ,,,, p,, , _ _ A ta . •v- r , Detrital Matrix: • w s.e-• ¢ • ' ' 41'44 • Clay Matrix 20.8 _ Authigenic Minerals: - . Ksp Ov. 0.0 Siderite 1.1 . , . 0.5 mm . Albite 0.0 Pyrite 1.9 - ��` Kaolinite 0.4 Chlorite 0.0 B Porosity: • ,.,-..4.s, ?r f ,,r { . _ } T` 4 y i Prim. Intergran. 2.6 Intragran.Plag 0.4 • w s/ e I\ . o *� ,+' ; ' ir$ ' � f i . r It intracrysi. RF: 1.1 Oversized 0.0 y � . ' ' , • `' �� i ' t t ' : . XRD -Whole Rock Mineralogy (Weight Vol -,, . - , . • \ +`i ` ., , i ,\ e � Rr L . : e S .. t } Quartz 71 Siderite 1 " ^ mY •. t j r �' - r :r « Vii« �+s K Feldspar 1 Pyrite 1 k to *: - '�` rl/I '` v..: Plagioclase 4 1 fi t .. r " " i t:• X r Dolomite 0 Total Clay 23 N . �" Clay Abundance (Weight %) " tllit 1 Smectite 3 Kaolinite 4 ` ' ' � ° ; tllite & Mica 11 Chlorite 5 • • ' ' y + " �• " ' r ,« ' ' . . . / „X ,{ %smectite in mixed -layer illite /smec is 20 -30 • s eft i s ib t %, r °- ,,,,;-,,,01:..,,,i,,..; Z,.A.:..,,7,4;;;. , �. W` t t _ '- ' , i .. Petrographic Description ' <: ti y { 4 . ' ' 0.,.. ` o% The thin section sample contains a clean well - sorted ' , x ,� ` + • 4w >m sandstone interlaminated with low -angle cross - stratified ICaoi mp A '' t " ,)•. s ' .+•� argillaceous siltstone to mudstone. The contacts ;t 's 1 ' tr ' r. +',' ` between the two lithology is sharp (A) and the `� �; a: ,r,,, ,)" . � siltstone /mudstone contains sand grains Photo A • -t , 4 Y , 'y ' i, shows metamorphic (MRF) and volcanic (VRF) lithic ti 1 ; u F • t grain types, as well as an argillaceous grain that is s ,* �' t 0 mm deformed between more rigid quartz grains (A; ARF). A -r •.-, , 'c '4 tA I ' �1. sr � s rare kaolinite- replaced grain is indicated (A; K -RG). Photo B details the primary intergranular pore system Relative Abundances: (blue - stained epoxy). The common long grain contacts Trace <1% (arrows) and partial quartz overgrowths indicates that Alt Minor 1 - moderate compaction occurred prior to cementation. Moderate 5 - 10% Minor intragranular micropores are present within Care Lab Common 10 - 20% authigenic grain- replacive kaolinite (5; kaol -mp) ,uswvw,rrawmn Abundant >20% PLATE 4 - SCANNING ELECTRON MICROSCOPY Company: Anadarko Porosity ( %): na Well: Wolf Creek #4 Permeability (md): na Location: North Slope. Alaska Grain Density (g/cc): p Y (g ) na Depth (ft): 2086 Sample ID: na Lithology: Argillaceous sandstone C Rock Name and Texture fir t' v.�: � - Y r r.' L -- f r Classification (Folk, 1980): Litharenite f ' ,- -=.4411-' z J�li'N- /':.."4',, - 1 =a, ,n f w _ G ra i n S (mm): 0.245 • 4r ¢. r i a Sorting; Wet and poor { Roundness: Angular- Subrounded - ' 4 f� - ; i ` =. Compaction: Moderate •.: ('� Structures: Massive 4 � yy � 'a: _ V_ r Y , �: f }+ 1 ,.,, , k - y , � , Mineralogy Determined by X-Ray Diffraction • ,,. ,{* , , 4 �: ,,, t �"� (Weight %1 ,%-'1 j. - ,' f ' '' 4141. ' --- Ft% " r ) ? - y -1 4,, ' � , 1. r e f " ! I '; 1 c K- Jf It !y� ¢ : <' t " �`` v i .t r .";;+ 4. .3 ' ` .;. ` x as E � l f;',' .. ` : ".t•' 'tit -'i • 1$' i .+c a> 4 l� r i #' s ,� t1. y� J r,- '^ .4.: �i ;' >�' fs ^� ,r 'r- � .� C1 }gym 11 D S 4 • � - <' ■ Quartz OK- Feldspar ❑Plagioclase � : -.2 . ■Calcite III Dolomite ■Siderite .:- ❑Total Clay • Pyrite ❑ Illite /Smectite • f f / J , Et Illite & Mica • Kaolinite • Chlorite -- f ,� XRD -Whole Rock Mineralogy (Weight %) fi ' ` i . " - 1 Quartz 71 Siderite 1 Y ` .Y: K-Feldspar 1 Total Clay 23 i - t ,� , P Y /� ~ , � ""` ? t btu , • Plagioclase 4 Pyrite 1 . _ ' Calcite 0 Total Clay 0 + s Dolomite 0 p ' -. Clay Abundance (Weight %) ,' t ," � � ':' , " - - ,=.,•' .. . ." 1 r / Illite / Smectite 3 Kaolinite 4 , qr i -� ,'r - : i Illite & Mica 11 Chlorite 5 } o * � t ',. %smectite in mixed layer illite/smecite is 20-30 ! * in Petrographic Description y � '; w ,,, ' A . , . -?t Plate C shows detrital grains supported in detrital matrix, �' ;r ',44.- r . >✓`" ' o r,.�!,._ , along with accessory mica (C; mica), and rare _). ' • --. , a �r'~ • r - 1 intergranular quartz overgrowths (C; Qo) partly filling , ' . �J-- (Ro -- intergranular pores (C; P1). Grain- replacive kaolinite (D, r �ti = e t kaol) comparable to that shown in Plates 4 A and B fA' occupies the central part of Plate D. Quartz overgrowths f i t. - • w :� 1.-"., partially occlude primary intergranular pores (D; P1), and • ► t , , . ., b j; , � • • webby stringers of illite /smectite occur as grain coating ,1, , r' 'G�.� i` "Ya �, - fi r , - 1 a nd pore-bridging cement (D; I /S). Core Lab 1115111110111 OPTINIlATION PLATE 5 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( %): na Well: Wolf Creek #4 Permeability (md): na Location: North Slope, Alaska Grain Density (g /cc): na Depth (ft): 2135 Lithology: Argillaceous sandstone A Rock Name and Texture 4.. ' r .A,4t+ `e. :- 'W 37 '4 ? ' ..;•4_ - - , 4 1 -, .0. , i , , , Classification Folk, 1980 Litharenite ^f`r, ' t { ,, s ; y ° • ` ' • , • Grain Size (mm): 0.142 (Lower fine sand) • ,..• A '" 4 ,, „ 4 , x t y : Sorting: Moderate w y` ,y� a d T r ,. as c;{1 , � ' Roundness: Subangular- Sub+ounded �v: y \ .4• 4 . t ' ' r f ` „, •n, ;, y ; ,t Compa ction: Well • °. Structures: Laminated, Rip -Ups ti )„._,%,„,....-.,,-.. : �, + ;. 4 ` • .. , 44 Rock Composition (Point Count) ,� , +d� i • ♦ `�"' . „•,r * ' "" Framework Grains: . _ r � 4, Quartz -mono 17.3 Argill.RF 4,7 if, • a ' 4 4•• , ,, !mr *Ark, 4 # ." ', +# Y ' n " a .- Quartz of 7.9 Chert 2.4 • r ., ° ti + .' -4,,r11 ', "' *,-,°'''.' ` ' , : ° , n _r - K- feldspar 2.4 Muscovite 0.8 ai " ° �`. `` jl , , � - " , „ °ti : „' Plagioclase 5.9 Heavy Min. 2.4 {{� ' 'v Z y' :1 .. ; ° " 4 r �e R �', :•: Metamorph. RF 27.6 Glauconite 0,4 ii , � v L s �+ - -' • ; rA y Volcanic RF 9.1 Kaol. Gn Repl 0.0 i '-• " { • `' w ' ` ti. `,, `c' 1 . . Carbonate RF 0.0 Plant detr. 0.4 " .. t a ' �� f ' Y :�� Detrital Matrix: , / s A Clay Matrix 12.6 . ` ' '� +'". "T ` Authigenic Minerals: • t.,Y� . .. ',-:•11 ,.. 4' < � • ti " � - Quartz Ov. 0.4 Fe Dolomite 4.7 • .4 `r�- -' • ,a .•a „' '° °.i . �.,^ Ksp. Ov. 0.4 Siderite 0.0 y'(! r� 0 .5 mm Albite 0.0 Pyrite 0.0 "'.1':- ' ° r' -- ., • , - - ii:- . - i .o dk -, i _ P. Kaolinite 0.0 Chlorite 0.0 B Porosity: , �, l ii r�'` ?' �`: Prim.Intergran. 0.0 Intragran.Plag 0.0 ,,,,° , .1:•41,1-1);(1,',...„; ' � ,C Intracryst. RF: 0.0 Oversized 0.0 r3tt 1 t' r RrF 'r + y , - ,t . . • fi , 7 t > . � r f i t - r 1 ;a u�' : V 4 � a t o �-.c � td�. � � � XRD -Wh R Mi nera l ogy (W /off , { i} . 4 t ' � 'Tr ' ! f , �; s' � r Jr i r v> i',.';',4:7,:-N`,::=4-V-:, , v ' v E ai , i 0 °'rku ro Quartz 58 Siderite 1 K - Feldspar 2 Pyrite 0 f i . v4 , , y a id ' i{�t "` . e ' 2..... V r r i « ' . � ¢. s, ` tL y r r', x '11 € � ' t I'k w� : Plagioclase 10 r ;� / h � ,' !'r, a k Dolomite 1 Total Clay 27 ,0 • * * , ` + L ' ` f " $4�* ? ;' ,' o Clay Abundance (Weight %) e `• ,, �r� Illite / Smectite 5 Kaolinite 4 t t . ,} 'CO:: ' i s •i 1 t ky. r ! t 4 art ri, ok ��� ..:.,4:, Illite M 11 Chlorite 7 a ' ''7�:i Sa b� . yet 1 %smectite h „ ? x • ?- � v _ /smectite in mixed layer illite/smecite is 20 30 a = l' ' , � 1 t o Petrographic Description . . , + _, ., . r . . , ' ' , " The thin section sample is a poorly - sorted, argillaceous . sandstone with shaley rip -ups and (A; arrows). Detrital } 1•i,ti � r } ��`" � 7 ' h ■ t y , p. ° t t w grains include abundant metamorphic fragments (B; . LJ v v }• tr r'" ,6- s w ' m "k '' � MRF), quartz and volcanic grains (B; VRF, with lesser + , " j , ' `^!,o a ' , 5 ,, 4 N ` ' ' feldspar. Argillaceous rock fragments are present also i ., , .;,..:,• s , y ...I. `. r` . t" �s '` 1, ,ii. • s , , , (B; ARF) and show ductile deformation. K- feldspar that '' L1 ' ; -, z ( " ' ' \14' ' , •�+ ''a '. i n �t <�i ' .*•' ' " ''+' has been stained yellow can be seen on the left half of r ,�y , c .'� • r 4 • 0.1 111711 ' Photo A and in Photo B (Ksp). Minor amounts of • ,Y , c,: f ' r� _ =__xs �, • ,. Z. ,3:1 • .- ta:8 vr. - �:. „•r = authigenic slightly ferroan dolomite can be seen on the right side of Photo B (arrows). Relative Abundances: Trace <1% + Api, Minor 1 -5% Moderate 5 -10% Common 10 -20% Care Lb MOM' Abundant >20% PLATE 5 - SCANNING ELECTRON MICROSCOPY Company: Anadarko Porosity (' /e): na Well: Wolf Creek #4 Permeability (md): na Location: North Slope, Alaska Grain Density (g /cc): na Argillaceou, sandstone Depth (ft): 2135 Sample ID: na Lithology: C Rock Name and Texture - �s ""C'R ' ' ' ` Classification Folk, 1980): Litharenite ,, •,e•a * d' , ` ' re- � ► Grain Size (mm): 0.142 a• , .' : R C 'r ►,2 k. w Sorting: Moderate ,-, -� • , i ' „ ;r_ ! ? , •,, s + Y Roundness: Angular- - ∎ •e. q. � w -1' ' .-�" t :. t�„ } : ' " ,R 4 Compaction: Moderate k x } ' ,.... ( ._,/ " .e..;!/ . ....0 _IM ,-fit;" �'" +. ,, , . • _ Structures: Massive r•*' Y +/' Mineralogy Determined by X -Ray Diffraction ,.. }� � � �,.�: � � �c., - vim ' , : , e " �`' �"'N b t x�, h� " ., i " t ie { - ,Z , • (Weight %I _w y � 1 ,� " mot � J � 1.. •-- �1 i ?.�. _ "r 'y R ><.. F ) • 'r V ! 5 1 ' 9r " pfd r +ri r ' �' � .. ,t� '' v h -� � ' ' ! s ' ~l - Are' Y ,_ya . ,''^_, e'er ' It -- k . � ` k, IL ' E.- • d1 7 4 D - 4- , - �° II Quartz D K - Feldspar ❑Plagioclase g > � t. i ■Calcite ■Do lomite ©Sidente ' F r i �' �v ' - 1 ._., • D Total Clay ■Py rite D Ate /Smectite iti C - ",- ?`` t ?'" 1 ; -1� O 'Hite &Mica NI Kaolinite ■ Chlorite A \ . g ' ; ./:, ,_ XRD -Whole Rock Miner a logy (Weight % . „' a �.h ' sr: ,\. k -`, ". Q uartz 58 Siderite 1 y _ /, f� K- Feldspar 2 Total Clay 27 4 wa Plagioclase 10 Pyrite 0 .., ,Erse •L,,K'•� - " : t -� P 1 `' t Calcite 0 Total Clay 0 3 _ ,- - :< ' • •> - 1.(i 1 1P k , , y "; Dolomite 1 �. ' Qtz �q I.N. I"" . a ,- Clay Abundance (Weight %) ~ Y < '' - r - ��4 -k.' Illite / Smectite 5 Kaolinite 4 'M. ) , 3 , Illite & Mica 11 Chlorite 7 �� _ _ ,, %smectite in mixed -layer illite /smecite is 20 -30 r��,, 'k- •- - _ W ,,� .' ' *;;,," .4'", Petrographic Description 6 � ' A `: } ' ' r : r ‘- 'k "',- Quartz (D; Qtz) and lithic grains are the most common • •� , i° � '� - � r '` • ,, `` ,� � `� ,:., psi' , grains types in this argillaceous sample. Primary • � • � • � l r ., I T - k� intergranular pores are rare. Note micropores (D, mP) � !' !"'1 , r - - ^...,--..,v,.., 'i( =t , and rare intergranular pores (D; P1) within • !, /? t" • V. 4 '� J intergranular detrital clay (Plate D). • ' S a f." - 11, + r 1 - s l)? Core Lab RCRCRVRIR 011011111nnw 1 PLATE 6 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( °r °): na ■ Well: Wolf Creek #4 Permeability (md): na Location: North Slope, Alaska Grain Density (glcc): na Depth (ft): 2148 Lithology: Sandstone I A p Rock Name and Texture „ r Classificat (Folk, 1980): Litharenite 1 S' Grain Size mm 0.333 tower medium sand) L_' ; ' r r "' � � �' .i....15 * Sorting: WeR ` "ti ' fy i y . = ` ", Roundness: Subangular- Rounded J � . k ^? � .,,,.•, , , t o ; ° ". Compaction: Moderate „ ► , . , ` 4 F ..,,,_,„•,:, , ,., Structures: Mass ve to faintly laminated !. , .', , ,, • , r ' • w ' b . • ,� ! s r ) > � e .� '',' - Rock Com (Point-Counti �• v: T'.+ .• , �M + - • `s •^ , . A !' "� J y'" Framework Grains r , , ' ! a r + ,tip :' Quartz -mono 30.0 P,rgiII.RF 0.0 ` • i, .% n• ` . ` 1• " r Quartz -poly 7.8 Chert 5.4 • I y ° ' ° y { T ' % '. K- feldspar 0.4 Muscovite 0.4 P. S t %! � ' 1 t Plagioclase 1.9 Heavy Min. 0.0 • • • t : + 4f f , �° a { Metamorph. RF 16.7 Glauconite 0,0 ;�' . $ ` (. � - ' , rr ' l Volcanic RF 14.8 Kaol. Gn Repl. 0.0 I . ,. ' f • • r � ti �X p � ."t r { ,, Carbonate RF 0 Plant detr. 0.0 1111.I'? r o � s .;i � �� , � ,�� ro tM,, s: pi � i v :' 4� � R t a ;`f 0 °`1 ,. l' '' '' '' '' . : , Cl M Detrital Matrix: • , ,, ,,n r , ay atrix 0.4 ), f� � Authigenic Minerals: '� , ' �. . „ o , f" ,.,,, ,- '! ` ." , � ". Quartz Ov. 7.8 Fe Dolomite 0.0 • 1 T f i . , i t ' '- A / Ksp. Ov. 0.0 Siderite 0.0 ,��,'" :` I ,.,.• w d ` . 0. urn Albite 0.0 Pyrite 0.0 Kaolinite 0.0 Chlorite 0.0 B Porosity: y 'r y 1 *i+ •'. , F ^ y ��' ' �' Prim. Intergran 12.5 Intragran.Plag 0.8 {,, ' � ; -. � ; x g �, ` "` ° � g + � , T. Intracryst. RF: 1.2 Oversized 0.0 Y � " y'X ' r 3 ,. XRD - Whole Rock Mineralogy (Weight %) x' 1 E f+ t` 4 qp • . ,. 1 s :, Quartz na Siderite na r" 4' a, , ...-1.4 ; ;nr.{t y4 ' _ , * ;�,� t o l / ,1 a • i' �� a , x ' , r , , ,, . a , K- Feldspar na Pyrite na -, ", Y �y 4- .x, a fN ty r a v' , . Vi e." ! ° ''' � Pl ag ioclase na a1 ,. 1 "',..7 " Ir , , ■ `> ` ` . Dolomite na Total Clay na 7, '� A '/ r r n »•.t.,':',".-4 :~ 1 S'- , ors "'• ` y,ar � i� a � i , R •e r. .�, '' . , F f j . ' s s ?�J .,r ,y v"t I � 1,m,„,,,, n � , Clay Abundance (Weight %) i •, r 4s 4 5 f a r , i? I ll ite / Smectite na Kaolinite na ' '. ' A ✓ , k - v ., ;Y $ d ' ` � k> ; Ill • &M na Chlorite na • �, I 'S v ,� {� .*.'4, ` r , ..,:,‘"*..,,i'.='. r 7 ,( • 11 y 5 > ,?, ;, ,sue s � 4 ; x ,E'� S t4-r I , 4 F �' , 'k•• 40,. y h " . ..!" 4 ` 41 •,„... • � x s Y i `, . , `r . . 5 r •, - ` ti 4T -; � , � t P ' �,•, ' L s / ti ,. r Petrographic Description , � . r. �+ s a R S ; �Z � � " , , T ^� ' ; �„ i ti �r� � � )� i �, The thin section sample is swell- sorted medium - grained ft4, ' . - ''. f W ' ,' l s t ' litharenite with abundant detrital quartz and roughly equal �; r " T ,,� 4 s ' . ' �,. t volcanic and metamorphic lithic grains. Grains have , r ± ' i� ' ' ?� ? "}i� , " -' ;;? numerous and mostly long contacts indicating moderate ��. �t+�. � r t � ,he ' *, ! ., compaction. Most quartz grains have partial quartz ryt , ac, w ' , ' ti I t t, t overgro (B; Qo) that partly occlude primary bi .., ,, •;:5-.. - s; - :.. .,., 'Ik. 4 ' .-:;_,,..1, 4.' . .',..e:. , ..k . ,r . i4,.,..; , _-3r y 3 P v ,1 "" ‘,...''«'`..i'.:.-..••,;! :: ' , ' J ' '- intergranular pores (B; P). Detrital plagioclase grains f o ' _ 0 . 1 run exhibit minor intragranular dissolution pores (B; Plag). J 4 1 �Z , t Many of the volcanic lithic grains are a dusky brown color, have a chert -like appearance, or chalcedony - filled Relative Abundances: fractures, but can be recognized by their feldspathic Trace <1% content (B; VRF- yellow stained K- feldspar) or by the blue- , Minor 1 - 5% haze indicating micropores (B; VRF -mp). A. Moderate 5 -10% EOM Lab Common 10 -20% j OESEAVOIOOPTIMIZATION Abundant >20% PLATE 7 - THIN SECTION PETROGRAPHY Company: ,Anadarko Porosity ( %): 4.05 Weil: Wolf Creek #d Permeability (md): 0003 Location: North Slope, Alaska Grain Density (g /cc): 2.723 Depth (ft): 2297 Lithology: Siltstone A Rock Name and Texture `, • . Grain Size {mm): (coarse silt) « Sorting; Poor � s ,� ro `° ^ ` ,g _ Roundness: Angular- Subrounded t' '. . Compaction: Moderate r . • ,r = ,04�e 4t - h z , , f q Structures: Laminated, burrowed, ' t, .' g t , graded !am. to .� 4`g - , ' C :; ✓ , . r6 c -I A- ^1 �;� Rock Com aositio n (Visual Est. i h J t r, -!t - a I' l: y j 14101 Framework Grains: * " rr..a +g + c + r� , r� `' Cs s' Quartz mono abundant Argilf.RF minor i y ^,* ��;` 'C� ♦6.s�' - - 1 4. +� :�lG +; ' • • {^« >t � - r , � P � ' Quartz poly Chlorite minor �` ,, •. a� -" K- feldspar minor Muscovite minor • �C <�` '? • - Plagioclase moderate Heavy Min { ` x , „ •..,i. Metamorph. RF moderate Glauconite f� ` ° fi ._ � .' Velcan c RF Kaol. Gn Repl A. , w ♦ _ ' , .z �` a J Carbonate R F Plant detr. common r y ,� r h+'1C"b!K Y S `.^ � "It'''''''''* „ + ti Detrital Matrix: +?x- Clay Matrix abundant `. ` + f +� t '” - ,r vr' Authigenic Minerals: 4-''' ,; , ?,, Quartz Ov. trace? Fe Dolomite minor , ry Ksp. Ov Siderite 1 .- - . ' , *. . 0.5 mm Albite Pyrite minor Kaolinite I B Porosity: ,-a f� '''Y''' � t , ;;v�u ,, R ., �` Prim. fntergran. Intragran.Plag "s �4 � • Intrac st. RF: Oversized i i Aki, w , '' +r f it i , su c ,.go:, , �1m..? „ , , ,, , y �pp • ., . XRD -Whole Rock Mineralogy (Weight %1 �..:.' {�i ��p.i -Ci ` 1 -' ,;: ' S � N 1 4 ti tix�t' , a . �,41 iPe� k -' e ; t 1 i c ✓ - Quartz 45 Siderite 2 � �• r uit K- Feldspar 1 Pyrite 0 0 . Z- d £i,@ • `�f �� is I F b O ,,.` 4q; 'N,,,,' . a '�'§.,. • r Plagioclase 10 x . : - ” , 4 .. 1. . • 4 Dolomite 1 Total Clay 41 A � � rat( '♦ , +3' � t 'a :; • *, t• , 1' b. Clay Abundance (Weight %) • .. ,�� ,# '; s � , '� w ' � •ry „ � r - r �� .• ° ° Illite / Smectite 8 Kaolinite 5 • � ,.y .' , ` A 'i '11 ' A'� ' 5^1" i , 4 i : ' '♦ Illite & Mica 16 Chlorite 12 Plug ' , *„ a a ; i �; %smectite in mixed -layer Illite /smecite is 20-30 a # + ^x ti: , " • "' Petrographic Description 4 r s �h " 404,„ r 'v �' rte, 7. The thin section sample is a faintly laminated, � s ; 1 RP a ? a - x burrowed, argillaceous, slightly sandy siltstone with a ,fit ` � u, ' .� �2 ' few mudstone clasts (A; clast). Laminae vary in silt } . '' � �{ y ' 4 " ' , and sand content , and laminae contacts are sharp. ,,,�_ x , t t � - � , -� � � � Several laminae are slightly graded. Very fine sand �' <, " x< - `� ��,, grains include abundant quartz (A; white), with lesser , y: + �,, " - - ;' v " �''t '^ plagioclase (B; Plag), lithic grains (B; MRF), minor K. t , :, r ': ; r .r5,r 0. mm feldspar (B; Ksp), and accessory muscovite (B; musc) • s K z r 1� r r._ ' t " �� 1 -/, L ' .,,,., and chlorite (B; chi) Rare possible quartz overgrowths (B, arrow) may indicate that sandy layers Relative Abundances: were porous prior to sediment mixing during burrowing ■ Trace and bioturbation. Minor 1-5% Moderate 5 -10% Common 10 -20% 1 . � e ' . Abundant >20% PLATE 7 - SCANNING ELECTRON MICROSCOPY Company: Anadarko Porosity ( %): 4.05 Well: Wolf Creek #4 Permeability (md): 0003 Location: North Slope, Alaska Grain Density (g /cc): 2,723 Depth (ft): 2297 Sample ID: A -33 Lithology: Siltstone C Rock Name and Texture I` - � a - f r , : : ; x l _ s ` � , Y s Classification (Folk, 1980) (€DIV /0' n 1 1►- i t, ,; ti f, Grain Size (mm): 0 ��� A ' -, t Y r Sorting: Poor r h • 7 r r s.Y ,. �( x is �, Roundness: Angular - Subrounded .i * f j0 t Compaction: Moderate , , , �t ` - .i r .. "` fi rte, Structures: Massive :), , r � , ,. Mineral dy Determined by X - R y Diffraction r e i � y ° `�� ! h • , S � 7 , j . i �� " �'� 'Weight %) O_ a F a -. .� l td 3t °. _ f,C ��G s � F u h t�y • µ T : , P 1 ^ - ` �fa f � '^ .;�'�'.. -- ry' / 1 f i J p `' N �. � .. ;�. A '' r TT tm ,, . __ . 1 t. J j' ".. -' k 4 - -, .I - g 1 3 3 1 D -- — - R ' 1, -}gip yr. D Quartz ❑K- Feldspar ❑ Plagioc(ase ,' s y�', , r.f ' ^ f � a- . .. f f T C1 Calcite ® Dolomite C9 Siderite • -' r ' , 1.- r r ,- ❑ Total Clay IN Pyrite ❑ Illite / Smectite I ) kF p ! J w t r ' 4 .. V , . , I ' , c i me = r3 �,,''° ° - 7 []Illite &Mica ■Kaolinite •Chlorite Plagioclase � r ` 4r.. R ' . " 'e ; ' XRD Whole Rock Mineralogy (Weight %) ' • '- ., r - 1 Quartz 45 T to 2 F Y. i . , ' . ,I i ' ""� / > K- F eldspar 1 Total Clay 41 �.. i$- r •- 4 ' `� 10 Pyrite 0 u �!. r Jeri ° r ' �tv Calcite 0 Total Clay 0 • + , c� a 1 Dolomite 1 1^ ,� r a� 4 ' , T, �`s % s '? ,js " Clay Abundance (Weight %) Z f `` �`, y " r - ` z _ ¢, Illite ! Smectite 8 Kaolinite 5 �; 4 -t" • - ` i;; •` 'i� ' $ • , f �,! - r ' �a Illite &Mica 16 Chlorite 12 z� „� u � � ( � _ � � v+ %smectite in mixed -layer illite/smecite is 20 -30 • ma � �,- ` _ ,� � , f » : :4-:.,t' _ 40,?..., - Petrographic Description . y r �_ '�j I` ; 0 .- ' ` _ , . l''' ,1' ` , ' Detrital quartz grains (C; Qtz) are easy to recognize J r ; �- �;� / �„; /, ; 1 " . floating in detrital matrix clay. Lithic grains are also P. �` � �, ` r outlined with abundant detrital clay. Central composite `' ,' r �, . •` grain in Plate D shows partial intragranular dissolution { � ' " ' ft '� 3 i (b; P2), suggesting that it is a polymineralic lithic c= � i• _ 1;,' g , ;' - � , ' t fragment. Micropores (D; mP) are present within the • - •: W , i • / 'r detrital matrix clays. A partial qu overgrowth • fir ", � . ; ,; f ; ' comparable to the one shown on Plate 7B is indicated ,` ;Y l i , ) - / < < ,,.� 2 i Ls by arrow ([). Core Lab XSSSAVOIRi C°T!N12ATIrN PLATE 8 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( %): na Well: Wolf Creek #4 Permeability (md): na Location: North Slope, Alaska Grain Density (g /cc): na Depth (ft): 2329 Lithology: Si,tstone A Rock Name and Texture • Grain Size (mm): silty lam Sorting: na Roundness: Angular - Subrounded ‚. .. p r • .... ; , n - - Compaction: Wet ' ' w : , 4. V. '^ ' Structures: Laminated, graded 4 c + • w , 't' - .....40#,',, '' laminae Y , + 4�' -:.:-.,_^. 4 � , • ` fi , : : ....163:::. Rock Composition (Visual Est1 r p^'� c r C � �; : " ,,, . � t yq Y r � . ' '' Framework Grains: -K �R � , s + , ti • ,-i ;.::: � r r , `..,_ "; ,,• Quartz -mono Common Argili.RF trace ) - ,, « :. r ' ' - Quartz -poly minor Chart trace c ,, „,,,. , " ..` "' j . K- feldspar minor Muscovite miror - _ i - Plagioclase minor Heavy Min. - Metamorph. RF moderate Glauconite , >9 ;A- Volcanic RF moderate Phosphate minor 4 '... ;. -, , - • • •: : 1 Carbonate RF trace Plant detr moderate r :.. x • Detrital Matrix: ' ti .' - x - e r Clay Matrix Abundant ,tir•�. , - Authigenic Minerals: • Quartz Ov Fe Dolomite 4 • Ksp. Ov Siderite - 0.5 mm Albite Pyrite minor Kaolinite Chlorite B Porosity: Prim. Intergran. Intragran Plag Intracryst. RE Oversized v>s` XRD - Whole Rock Mineralogy (Weight %) 1 Q uartz na Siderite na t, i t r t` _} K- Feldspar na Pyrite na * y r z w Plagioclase na • -' e3 ; ..' ' i^ 1 P" - i w' "` :` Dolomite na Total Clay na :::27: 5 zi% - Clay Abundance (Weight %) r } .' vta hi,, Illite / Smectite na Kaolinite na t Illite & Mica na Chlorite na "> %smectite in mixed layer Illite /smecite is ''7.' .� J r k - 4 .. , , r ' F es: Petrographic Description - „ ,;, x - *,,, , ,, , w � ''' The sample consists of interlaminated siltstone and 4 � '' "� `' '- . rxl ' . �e ' ,, � , t . . ,_ shale with some laminae ve rich in plant fragments s ,0� (A, arrows) and scattered phosphate grains (A; Phos). Pi' v t ". - �, f �, � � ,,,fix : � , - , � '>... � ='o � l - '? � Photo B shows that the organic fragments occur in the Y r r ' , v im•. a+'„ x� . 1' shaley laminae, disseminated throughout the matrix ' - _ , a ' ,� t qM ' ri � ,' and a concentrated in elongate stringers in the more .' . j ( 1.� , �. . .. r . ' r ..: , silty layers (B, dark brown) Minor pyrite occurs in � x tt - _ 0.1 mm association with the organic material (D; black). Silt ' isr ` `� y grains include quartz (white) and feldspar and lithic .. ., .x.3"1`'-. �bv �^;t r. _.. .... : ,�t .. � �8...,. . �n.�i..n! grains Relative Abundances: Trace <1% Minor 1 -5% Moderate 5 -10% Common 10 -20% eD Cure IMMOBP 1111101 Abundant >20% PLATE 9 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( %) na . Well: Wolf Creek #4 Permeability (md): pa I Location: North Slope, Alaska Grain Density (g /cc): na Depth (ft): 2447 Lithology: Mudstonx A Rock Name and Texture . ` o'• Grain Size (mm): ;aay -silt l Sorting: na I a a ° t, <. �-, 7 r +, Roundness: na w �r ; r �, Compaction: na + , } i; x ' - * 4 •.. 4 . ` ,.;. Structures: bioturbation 1 Rock Composition Lyjsual Est.i Framework Grains: Quartz -mono Argill RF i Quartz -poly Chert K- feldspar Muscovite Plagioclase Heavy Min 1 ` Metamorph. RF Glauconite Volcanic RF Kaol. Gn Repi Carbonate RF Plant detr. minor Detrital Matrix: Clay Matrix abundant Authigenic Minerals: Quartz Ov. Fe Dolomite Ksp. Ov Siderite 0.5 mm Albite Pyrite minor • Kaolinite Chlorite B Porosity: Prim. I ntergran. I ntrag ran. Plag • . Intracryst. RF: Oversized • XRD - Whole Rock Mineralogy (Weight %) - . Quartz na Siderite na K- Feldspar na Pyrite na Plagioclase na Dolomite na Total Clay na Clay Abundance (Weight %) Illite / Smectite na Kaolinite na Illite & Mica na Chlorite na %smectite in mixed -layer illite /smecite is Petrographic Description -'i, The thin section sample is a well bioturbated mudstone with domains of aligned clays marking the swirled disrupted fabric. Photo A shows areas of • . different coloration (arrows) which are detrital clay patches with uniform alignment, best visible in crossed nicols. A rare burrow occupies the center of Photo A. Dark plant fragments occur throughout the mudstone, 0.1 mm and as large deformed grains (A; upper right). Photo el■-••■•■■• B shows the single burrow in detail (B; B). Note the evenly disseminated flecks of organic material and Relative Abundances: pyrite (black). Fractures (blue epoxy - filled) present in ' Trace <1% Photo A are probably not natural. Minor 1 -5% - Moderate 5 -10% Z ='--- ") °=' Common 10 -20% Core Lab Abundant >20% Y 11'1'HV9 II OW tIN.12A b I t PLATE 10 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( %): na Well: 'Wolf Creek #4 Permeability (md): n a Location: North Slope, Alaska Grain Density (gfcc): na Depth lft): 2858 Lithology: Sandstone f A Rock Name and Texture f Pt � 's'" ° '� "" sr' r ,,.. 1 +' °; Classification (Folk, 1980): Litharerite a �' � +' {� - - ��yt a l• * �' , - "A , Grain Size (mm): 0 122 (1.1. very fine sand) i y. • 1 a .. Sorting: Well ., r 7 ) � . { .. }C ' Roundness: Angular- Subrounded � t..�L� Compaction. Moderately we ' A*: P °r rt A 1 ,' ". +� r . s _,.r� �o Y " Structures: Massive J + , , k ' ; � Rock Composition (Point - Count), , � F t \ ^, Y r „ ; '` ` ; ,a f ' } Framework Grains: .,. � ► w tie ' k , Quartz -mono 17.0 ArgiILRF 5.4 • • i i a • ,�, { e xc -: ` ,. '.. 1 Quartz -poly 4.7 Chert 4.0 _A v y + a , ' r i' r K feldspar 2.2 Muscovite 0.0 '� , !1d : ,.., , 11 - 't= ; + , Plagioclase 11.6 Heavy Min. 0.4 le ` y b a '4 .i • � � j . Metamorph. RF 27.2 Glauconite 0.0 .i' r, ,, - ;. °.: ;, ! *, ' : Volcanic RF 8.3 Kaol. Gn Repl 0.7 • � ,; ' .- - ti, E , . 're , •-� r r4. • , ! Carbonate RF 0.0 Plant detr 0.0 - .- # . a. "! • jT i I n ` id Y Detrital Matrix: . , � 4 w4 : 1°401 �` ...s1:;.• ..;, t r . e, T Y .- Clay Matrix 1.8 - r + i', ....7„.- a . ;_ 4 , *r r R f F „ ; fi Authigenic Minerals: r �° Quartz Ov 6.2 Fe Dolomite 0.7 �y � �;� n � .: r' O � !.� +. r,-,'.i. -i,'''',":5:4. ; �` 'e� a Ksp Ov. 0.4 Siderite 0.0 'f' r' 4 '' 4 ' ` ` t r Jr1/4 0.5 mm II Albite 0.7 Pyrite 0.0 • k :.z7 ,. t, T ��ii Kaolinite 1.8 Chlorite 0.4 • B Porosity: F.. sea .; ` Prim Intergran 4.3 Intragran.Plag 1.1 Intracryst RF 0.7 Oversized 0.0 k:: f / r�3 -,,,,,Y , L`i .8.''.'''4,:.' �', ! t s ' , . ,.; - - XRD -Whole Rock Mineralogy (Weight %) ' Quartz 65 Siderite 0 1 i � x` r4 ° t w K - Feldspar 1 Pyrite 0 }, ,,' .. i f ' 8' . Plagioclase 13 �; , ;r y � �' ' {' � i� a � y '�` . . ' s � 4 r p .A, 7 $' : ` Dolomite 0 Total Clay 20 rtr ( 1. , . r d t m ., , - � ^ z " Clay Abundance (Weight %) a tt ' +fie �z A ` . • Illite / Smectite 3 Kaolinite 2 • t t , � K • { ; ti , P • Illite & Mica 7 Chlorite 8 • P ', tY: "`'" '' , ;2 � /osmectite in mixed -layer Illite /smecite is 20 -30 1 • s�� 0 1 " �'i � ,-' n s �' r" r >' Petrographic Description t�` r year'' �`fn R''^{ �� n The sample is a very fine grained sandstone with t ° S y # i t '' a s wx •5 q P abundant uartz -rich metamorphic grains, and lesser K a 4. `,, ., (� ,: �, - h �\ ? � ~ i 7 ' , � .,. y „ ' r F. 1 •- .4 , detrital quartz and volcanic grains Argillaceous rock . " 's '` 4 l: A/ti`* -, fragments account for some of the clay measured in r ' irz :pt ,, •"°••• ° (,(44, XRD analyses. They are frequently deformed (B, J ; s e . ; ` : a� ti 4 ' -1 ARF). Biotite (A; blot) occurs as detrital grains, and r ` a ' ' '' '4 z e,. chlorite is common in metamorphic lithics grains (B; '' # 'r ; :,�' 0.1 mm ; MRF). K- feldspar can have authigenic overgrowths (B; .` ` - ••■••■•■■•■ k Ksp) and detrital plagioclase (B; Plag) is often partly replaced by albite. Metamorphic grains typically show Relative Abundances: schistosity (6, MRF -S) Volcanic grains usually show Trace <1% partial staining for K- feldspar (B; VRF) Intergranular . Minor 1 - pores (B; P) are cemented by partial quartz Moderate 5 - 10% overgrowths (B; arrow) or completely filled with Common 10 - 20% kaolinite (B: kaol) �C @L�b Abundant >20% PLATE 10 - SCANNING ELECTRON MICROSCOPY Company: Anadarko Porosity ( %): na Well: Wolf Creek #4 Permeability (md): ra Location: North Slope, Alaska Grain Density (g /cc): n a Depth (ft): 2858 Sample ID: na Lithology: Silty Claystcne C Rock Name and Texture y ':7 Classification Folk, 1980 Litharenite A et', r i , rt , � 1 ` " r f� j ` , P.. Grain Size (mm): 0.122 �� �� � Sortin Well Y ' ¢� , ? 9 E ar a ! t 4 � t � ! t t F� z, ^w > -' r Roundness: Angular- Subraunded fir � ` t,. ,,_', , r „'� > `,;,' r�3t 3 t Compaction: Moderate r I �� 1 8 Structures: Massive 3 . •i' . I ' - , '� �� < , ° , ., - ' - o FA Mineralogy Determined by X -Ray Diffraction „ir eistht Vol - , �. ,. Y , _ j "� w t ,l � r �,RJ �k ,.."4!.;,-• <f } ' , - ,•:;;:---, ''±' '' ' ' - . W - . t ' . • • ,- - • .f ,e• 1.• 1 ■ r.,, ' .!, , ,,,,,,, . ..,, , , A ,, .. , ., . ,,,,, ,,, 3 , i A, .. . , ;Z., ., . .1i .. , .4:di All , knoi'!.-7S, ''. Kfr-' . . 7. .`70.0... .„'A'i' • 1,;' ye .., • , ■ ' - , ...N1'.4. 1,,..% --,..-- I i r " "sv, � `� r i fir- •• J 8 2 D : - oQuartz OK- Feldspar OPlagioclase �'' ©Calcite II Dolomite Q Siderite .) 1_-:& ,;::* 'v + ' a 1 ° ' O Total Clay III me O Illite /Smectite � �W ,d „ Y ,, l _ O Illite &Mica_ ■Kaolinite ■Chlorite 4. / J .' ' ■ r - 4s , XRD -Whole Rock Mineralogy (Weight Vol ) _ ,. . - ..� \4- ' ■ � y. i- c ,�. f` _ Quartz 65 Siderite 0 f . l K - F eldspar 1 Total Clay 20 t{ N , {� �4 r� Plagioc 13 Pyrite 0 ` - - - ,1 1 '1W 'At,. ( , .t f f" 11 ,N Calcite 0 Total Clay 0 l4 ' ` e $ e y \f 4 ' '> + j. _ Dolomite 0 L F F. �, F y , r r ` t 1` --rte Clay Abundance (Weight %) ` i ' Illite / Smectite 3 Kaolinite 2 a C,1 ,' ,, , , :y� -° ,,,r , - Illite &Mic 7 Chlorite 8 " ' ' ,1 , a \ ' " %smecfite in mixed-layer illife /smecife is 20 -30 11 ?` -. \ Qo y ! ' N . - I. -, '; 1 Petrographic Description f 4 f � ' X4,1 , r, sid, y� „I r ,, : A monocrystalline detrital quartz grain encased in , . I r j - , -�,, detrital matrix does not show overgrowths (C; Qtz). rF t ��� .. - , . ' : - - , Blocky shaped feldspars (D; Fsp) comparable to those • , , /- a ~a t s � • , - • f. - shown in Plate 10B, polycrystalline quartz (C; Qp) and deformed lithic rock fragments (C; RF) can all be }�, t , �,. y recognized. Primary intergranular pores (C; P are , „e i , _.„, \'''''. . u'",i':.' a mo �'� �O $• �� • partly occluded by euhedral quartz overgrowths (D; `t t� ' ,F . i l . 5 Qo). The detail view of a primary pore shows that ,, , � 4 " 'f quartz overgrowths overprint chlorite that can occur as a grain- coating authigenic cement (D; Chi). 1 Ca tb ILEUM PLATE 11 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity ( %): na Well: Wolf Creek #4 Permeability (rnd): na Location: North Slope, Alaska Grain Density (gicc): na Depth (ft): 3171 Lithology: Siltstone A Rock Name and Texture ' .� • yf .,'`i '.0 fit', „� 1 i P.' •' ,, . `, !, • 4 ► P” - ,st ' . �: ^ ' 4 • It, ••• Grain Size (mm): (coarse silt) • - s �-. • � ! . *;." ix a.K r t-''� • _ Sorting: 0 6 , , .. r e -., r • • ,l; `,, Roundness: Angular - Subangular • * + . 4 + i a N ` Compaction: Moderately well • # �'r� •" , , a 't , • .',44. Vi Structures: Faint wispy stringers � -- v,, f • r_' ° �rt „ , ' •! y `.. / , ' ` - tl -, - ' . • a , , j'' • Rock Composition (Visual Est.l ' ,= Y_ . , ,• - ■ ∎ Framework Grains: V •A -'1/4.-_'-- ' Quartz -mono abundant Ar Argil' moderate ' f to S' r ;µ cy 0 9 d ',Ali; r , . 4 P. ! ' : ° . r -' : ' y � ' J y Z., Quartz -poly minor Chert minor IP' � ,I * • ` 4 t° /-.' K - feldspar Muscovite trace •,; -0 - ' .- ''..!' Plagioclase minor Heavy Min. w F � ' Metamorph RF minor Giauconite trace • _ t t . <'' • `'" `; , 'I' Volcanic RF minor Kaol. Gn Repl ,, j • e ' ►4 R `. ' ` ► ` • v ..,, , Carbonate RF Plant detr. common . a ` a ' , • . . • ` � , ' ° a : ` s ,.. y Detrital Matrix: ' ?' - - .,7 • ; . , t ', s . , } , Clay Matrix abundant .'' 1 1 Authigenic Minerals: A ' .a • Quartz Ov Fe Dolomite a 1 y y � +�' -° t' : • F Ksp Ov Siderite s 4 ' r d ' �' Pyrite • a P`'' 0.5 mrn Albite ' ' ' a ',.4 . . .' , ``, 1ti . .• 1 - .. Kaolinite Chlorite B Porosity. F °i' r ' ` r Prim Intergran Intragran.Plag ." t { ' `r" y.ry ` Y , . Intracryst. RF Oversized a, � p '.0. , ,* • 1 4 XRD - Whole Rock Mineralogy (Weight %) ti T+ ,,.. • • Quartz na Siderite na K - Feldspar na Pyrite na ✓ , ,...;11... t t i,'" , • ,, :; ° °. J� . - Plagioclase na " x Dolomite na Total Clay na ' . € k �' ti r ' Clay Abundance (Weight /) yy ((�� s { Illite / Smectite na Kaolinite na k 4 t, i ` _li ',V'. ' • Illite & Mica na Chlorite na • ,� '3 , a •; .' r . r ',M�9 p S.. , • �, u 1 ,.. I i fie w 'r!':' ,"1-.' , ',.e.,'...: A i.%y' d - ' M L `� r `` �� • , k ` •; Petrographic Description t .il t t ; , ,; e V rt ,, The thin section sample is a slightly sandy siltstone to � -x tl t , .;, `� + -' ' {. argillaceous siltstone with a massive texture u ` ., . -t ,w" »� - , characterized by faint wispy stringers of clay and plant so ' .. * w. R ; , ti A '. 'e ° ;,, ♦ ? fragments (A: plant frag) Rare clay rich burrows are f f `, ..` �, ?,r , also present Minor very fine sand grains are most + " 'F.,;.!.' r sk A,, -: �a w , s' ' , commonly monocrystalline quartz (A,B, white), but 1' �; ',• n ► ?�`$ 'r ^�a, lithic fragments are also common and include ''` .;P F > ' v 0.1 mm argillaceous grains (A,B, ARF) and volcanic grains (A, ;.' , , , ,. „,..q.?‘`..;, * -,- sk + VRF) Glauconite and muscovite grains occur in trace amounts (A,B; Glau, musc) Photo B shows the Relative Abundances: abundant dark brown plant material and pyrite crystals f'* Trace <1% (black). Vi Minor 1 -5% - Moderate 5 -10% Core Lab Common 10 -20% x1,1- .11•,IPTI„1L,t1OY Abundant >20% PLATE 12 - THIN SECTION PETROGRAPHY Company: Anadarko Porosity (%): 14.31 Well: Wolf Creek #4 Permeability (md): 1.79 Location: North Slope, Alaska Grain Density (g /cc): 2.696 Depth (ft): 3222 Lithology: Sandstone A Rock Name and Texture • F > -, � �. / � Classification (Folk, 1980). L i r , •a r .. � v Grain . • • y N, a � �. F . ,� r • l '" � i`. ,� 1 h e Size (mm): 0.293 (Lower medium sane ; . • �t a, , . i S or ti ng. Well ' r .,. ` .' , "t r - ' ' �" `' / Roundness: Angular- Subrounded I ,.. - v r , ? , , Compaction. Moderately well 1 I _ l ' .i.47/4.•• ) • ', * , , Structures: Massive F , w Rock CompositionLPoint- Countl > ; + • r3 s � f Framework Grains: `,...3 g kp5• �j M p' k i . U - .p 'Yi • ,�� .. ' �a, ,' " , a� •-`- -- (. i .4 1 Quartz - mono 17.2 ArgiII.RF 6.0 r y � • ° `' ,, r t } i ' j Quartz - poly 8.2 Chert 11.6 • ; .",,‘,,..,!-T,;', „ 4 K- feldspar 2.2 Muscovite 0.0 �. " v + a''kF „t v' y w Plagioclase 3.4 Heavy Mn i. 0.0 • " ° '' ''1;•, r w s ;� a Metamorph. RF 20.6 Glaucornte 0.4 • ( �' 1 1 t r / ' ' Volcanic RF 13.9 Kaol. Gn Repl 0.0 ! N a , J et ,, .. }: ` t�� fir Car RF 0.0 Plant detr. 0.0 • o !; f� } fir, Detrital Matrix: s � - N ',i,..7, , ° = ' :4*: ? ' r •-, Clay Matrix 0.0 • i v 7 e • Authigenic Minerals: � / - Quartz Ov. 5.6 Fe Dolomite 0.0 ` �, r ; ' { a Ksp. Ov. 0.0 Siderite 0.0 it k ,, < I * 3 4:1 0 mm Albite 0.7 Pyrite 0.0 it v :341 ,, ', x w r �'�4_ L ' ,. , a.. Kaolinite 2.2 Chlorite 0.4 B Porosity: l ,t " c. ' t w � iMalt r 3r0474#0,4.3: s 4 . y �4 ,'N... , � f -<. Prim. Int RF: 6.4 Intragran.Plag 0.4 �'^ Intracryst. RF: 0.0 Oversized 0.4 • a O ,:i147:•'''' 1 • � lit' f � ' : " j k�t i F , • i t • � � x` , ✓'' '7 s J A , �e , at f ` °'' t XRD - Whole Rock Mineralogy (Weight %) ' aa r � o j ai t� r " Quartz 73 Siderite 0 �. r ; , t j ��� ' 1 t' y �' f 1 K Feldspar 1 Pyrite 0 • " °' o z .sh , ik r '.,..7';....',.. R i Plagioclase 10 • F .. N , ' Do 0 Total Clay 16 Ir% <` Clay Abundance (Weight %) L t •;« , . Illite / Smectite 1 Kaolinite 5 Illite & Mica 2 Chlorite 8 ,, i d `„ : %smectite in mixed -layer illite /smecite is 20 -30 �, f N „% � Petrographic Description , ` '" ` ,' ,7 '', 5 ;. -� � ? ,.` The thin section sample is a clean, moderately well 'i" ''r • ;' ;i sorted, medium - grained litharenite with roughly equal • !r + a 7 4 .`, So • , " • • qy r xw, j " • i , F , '` i�' amounts of quartz, metamorphic and volcanic grains. • �„ ,.�. r , �; "moo Many metamorphic grains show strong foliation (A; 'et �. 4 , ° ;, h ' :.'7''' ,. • "' . _f, s t-� ?w ' 4 ,_X MRF) and at high magnification show dissolution pores • ° �,_,{¢ , ' ' . • :;,.:-.1,..,...,,; e A t , (B; MRF). I „ `� t are present feldspar . Volcanic (A; grains Ksp) and are plagioclase commonly (A; dark Prlagi) in '4 . , �t: Tr r 0.1 mm f color, may have chalcedony - filled vacuoles (A; VRF). Aa` `� 2 '` 1 t • s ` '.: " 7 . ; 3 ' N y So me are highly altered and microporous (A; mp). Chert is present (B; Ch). Kaolinite occurs as a grain -rreplacive Relative Abundances: and intergranular cement (B; kaol). Accessory detrital 1 Trace <1% 1 - amphibole is highly dissolved (B; A), forming Minor inteagranular pores. Primary intergranular pores are Moderate 5 - 10% partially occluded by quartz overgrowths cement (B; Qo). Care r Common 10 - 20% Arrows indicate thin chlorite grain coating. i um.=dPtUaiAppp Abundant >20% PLATE 12 — SCANNING ELECTRON MICROSCOPY Company: Anadarko Porosity ( %): 14 31 Well: Wolf Creek #4 Permeability (md): 1.79 Location: North Slope, Alaska Grain Density (g /cc): 2.696 Depth (ft): 3222 Sample ID: A -2 Lithology: Sandstone C Rock Name and Texture E tt t ''\:- a Classification (Folk, 1980): Litharenite a ' � i. T -ez ` „ s n , - Grain Size (mm): 0.293 ift .,-. ; ,s t� t1 3 ,t ' .x ; r t 4 , ` 4 . 3' Sorting: Well ` '` , �� t 1 , '' a r t ,., ir Roundness: Angular - Subrounded �' ' , P � - '' ;. ; • - °F , . , Compaction: Moderate ;as , ` y = 1 cam/ J. . Structures: Massive y r - . ., v ' A _. •t4s' , . M Determ by X -Ray Diff rac t ion - r `> � 1,t€, � �.1 -� ` — ' 3. -e" .4{ (Weight °/ . l t1. l� J J " 0 , sa ' J •• < j -1cwt --__.. - - o _.. ■ 't+sr 4A k � S z c . F • • a r • y /` • i i \ ) 1 3 3 1 t D f - �` = a N W.' t 7t , , -40' •Quartz D K- Feldspar CI Plagioclase q i y ' > .* _ q. 1 ' ' .V "� ■Calcite • Dolomite 0Siderite ,n ? t c s• , OTotal Clay • Pyrite ❑ Illite / Smectite pp � �. (4{. �` 4 , O Illite & Mica ■Kaolinite ■Chlorite , T - �� � • " , , Y tza t A XRD -Whole Rock Mineralogy (Weight Vol 1 -11> • ,,f , ti r � Quartz 73 Siderite 0 �• ° +" ' ,,,,,', �- ,; ,, i K- Feldspar 1 Total Clay 1S A *444 '� , + '., f3" • f;F, , V ..,2,4,3,..: r , • y 3; 4 , , Plagioclase 10 Pyrite 0 ` ', t s . � ► i , f 4` � ;, ,� r. �� wi t ,l ` Calcite 0 Total Clay 0 ., r i' ` � a� i '7t 3�7� � ' " ' jS ' 1._ Dolomite 0 ;/ ti ._. \ , ' , `�� , �! G � . . ; -. i Clay Abundance (Weight %) �' . . ` :, ' j �• k ' - ti s , 1 1; . Illite / Smectite 1 Kaolinite 5 � a `' ��Y'� 4_'r�� 9 _ Illite & Mica 2 Chlorite 8 / . ca ; j e,� v '7 -i , .4 %smectite in mixed- layer illite /smecite is 20 -30 .4 ,---,1-'0 ` r . '4t/ 1 t ' ' ` Petrographic Description ns. r ,s,-f,'"?' /.�- . - . 1 ( ".. , � At .t The Scanning Electron views show preserved primary i , rte ,, ' '' ,7p, r : Y 't ,' intergranular pores (C; P1). Quartz grain and r , ao ; k : r .1._10"7„.,,,W.„,,,,„. r ,j) , argillaceous rock fragment (C ARF) in Plate C shows , 4. ,`,. •t^ : �' '. - .. ..y, 01,x - 4, r the grain- coating chlorite (arrows) and a detail view in '' / ' `_ ,,� z. ;: ' it, % '4 ,. c'" ?l - 1 1 , -( iSs; f'< Plate D show a grain surface coated with chlorite (D; ' 1 t 1• . 4 `�1i >;,-! y ' Chl). Plate D shows the edge of a quartz overgrowth � _ f ti s ' 4 >, f 4 " '2 'r (Qo) bounding an intergranular pores. Minor amounts of , � ''' `'� r • +' r " 1'4 � iA O ' authigenic quartz (D; Qtz, and fr pyrite (D; Pyr ' j • ;, / . se u ._A ) are present within the intergranular pores. Micropores are present in intercrystal areas of grain - replacive kaolinite (D; kaol), and within dissolution pores in it plagioclase (C;Plag) A Core Lab UTIW0IU nrnM,unoN `\ Thin Section, SEM, and /77/ XRD Study of Core \ � S t A „ ,,,,--- ,,, ., ._ . (- -.,-, ,,, . , i'r 7 ,. ,,, MS IR MN- : ti ■ t File 0902070, Anadarko Petroleum Corporation Wolf Creek 4 Well North Slope, ` { P Alaska August 2009 Petroleum Services 6316 Windfem Houston, Texas 77040 USA Tel: 713 -328 -2565 Fax: 713-328-2567 www.corelab.com Core La RESERVOIR OPTIMIZATION ROTARY SIDEWALL ,• FINAL REPORT for r ip 1 qU , 6 b • Anadarko Petroleum Corporation Wolf Creek 4 Foothills Program North Slope, Alaska July 23, 2009 HOU- 090207 Care Anadarko Petroleum Corporation Wolf Creek 4 Foothills Program North Slope Alaska HOU- 090207 Sidewall Core Analysis Final Report The laboratory core processing and measurements discussed herein were performed by Core Laboratories, Houston, Texas under the direction of Dr. Robert Skopec, of Petrophysical Applications International, The Woodlands, Texas. SIDEWALL CORE ANALYSIS PREPARATION Inventory One (1) Pelican case containing fifty (50) rotary sidewall cores and forty -five (45) percussion sidewall bullets were received at Core Laboratories Houston facility on Thursday February 26, 2009. Upon arrival, an inventory of the samples was prepared to verify the shipment contents. The rotary core inventory, including sample number, depth, combustible gas units, and sample length was forwarded to the client. The percussion core inventory including shot number, depth, lithology, sample length, sample quality, and visible -light photograph was forwarded to the client, but samples were not analyzed. CT Scanning Core Lab's High Resolution UltraScan CT Scanner was used to assure rotary sample quality. This aided in the selection of samples for further analysis. Sample Preparation Upon completion of CT scanning, a 1/4" trim was taken from each end and archived for future use. Each sample was then carefully inspected for parallel ends, cleaned of all cutting debris along sample axis and end faces. Each sample was liberally wrapped with plastic wrap and placed into glass jars. Photography Oblique angle and end shot photographs were taken as soon as possible after sample preparation to ensure core and fluorescence integrity under visible and ultraviolet light sources. ROUTINE CORE ANALYSIS PROCEDURES Fast -track Samples A subset of nine (9) samples was selected and split, if possible, for a Fast -track Study to determine the impact of routine core analysis methods on data quality. A number of geological tests, including XRD, SEM & thin section description, were performed on a subset of samples. It was determined from XRD analyses that routine extraction and drying methods would have no adverse affect on routine rock properties. The final geology report data has been issued under separate cover. Rotary Core Analysis Dean -Stark Analysis / Extraction for Water and Oil Saturation Dean Stark analysis follows API RP 40 procedures. Toluene was conditioned (pre - boiled) to remove any absorbed water. Each sample was placed in a pre- weighed thimble to save any lost grains during the extraction process. All glass joints of the Dean Stark apparatus were sealed with Teflon tape. A moisture trap (desiccant tube with fresh activated silica gel) was placed on the top of each condensation tower. Specific Dean -Stark Procedures Fresh reagent grade toluene was used for each plug analyzed. The flasks and glassware were cleaned between each use to ensure there was no residual water or tracer present. An aliquot of toluene (approx. 250cc) and 1.0 cc of water was added to the flask and conditioned. Each calibrated Dean Stark sidearm was inspected and an initial water measurement was made at this time. The system was kept closed except when adding or removing the sample in order to keep toluene loss to a minimum. After determining that sample mineralogy was not heat sensitive via XRD analysis, each core plug was weighed to an accuracy of ±0.001 g, placed into a pre -dried and pre - labeled glass thimble to trap lost grains and re- weighed to the same precision. A fiber filter was placed on top of each sample to minimize grain loss due to the capillary effect of toluene being dripped onto the sample during Dean Stark extraction / distillation. The plug was then immediately loaded into the Dean Stark apparatus. All joints were sealed and extraction / distillation initiated. Toluene was refluxed until no further change in the water volume in the receiver was observed for twelve 12 g ( ) hours (minimum Dean Stark extraction time is 48 hours). A Teflon swab was used to remove water droplets from the neck of the condenser and the sidearm. The water volume was recorded to within ±0.025cc (1.2% PV @ 10% porosity). Upon completion of Dean Stark extraction /distillation, the samples were batch extracted using chloroform /methanol (83:17) & methylene chloride /methanol (75:25) azeotropes. Solvent discoloration was used as an initial indicator of cleanliness. Once the solvent showed no sign of staining, the samples were soaked in methylene chloride for six (6) hours and the effluent was inspected for fluorescence. The samples were then transferred to methanol in the absence of effluent fluorescence to remove the remaining salt from the samples. A silver nitrate solution was used daily to indicate the presence or absence of salt in the effluent. Once all salt and hydrocarbons were extracted from the samples, they were moved to a convection oven for drying. Each sample and thimble apparatus was dried in a convection oven at 240 °F until weight stabilization, ±0.001 grams to facilitate a total porosity model. Upon weight stabilization, the samples were removed from heated drying and placed into desiccators. Each plug & thimble apparatus was weighed within ±0.001 g. Each sample was then removed from the thimble and weighed independently. Petrophysical Measurements Grain Volume Direct grain volume measurements for the rotary plugs were made using an automated porosimeter. This instrument utilizes the principle of gas expansion as described by Boyle's Law. Helium was used as the test gas. The instrument calibration is maintained on a daily basis and test standards were run to verify instrument accuracy. Grain Density Calculated grain densities were obtained utilizing grain volume measurements and sample weights. Grain densities were checked against lithology standards. Plug Dimensions Sample lengths and diameters were measured using digital metric calipers. Porosity Pore volumes were directly measured on all rotary samples at various mean net effective stresses at psig, provided by Dr. Robert Skopec, in a hydrostatic core holder using the Boyle's Law double -cell technique (API RP-40, Sec 5.3.2.2). Porosity was calculated using the following equation: Porosity = Pore Volume I (Pore Volume + Grain Volume) X 100 Permeability Values for permeability to air were measured using the unsteady state method at various mean net effective stresses of psig in a hydrostatic core holder (API RP -40, Sec 6.3.1.1). Sample permeability was calculated using the following equation: Kair = QxuxLxPa AP x Pm x A where: Q = Gas Flow Rate (cc /sec) = Gas Viscosity (centipoise) L = Sample Length (cm) AP = differential pressure across sample (atms) Pm = mean pressure (atms) A = Sample cross - sectional area (cc) Pa = atmospheric pressure (atms) ii Flow- Through Extraction with Permeability to Toulene The samples are trimmed as necessary to shape them into right cylinders. Length and diameter are determined, using the average of several measurements. The endfaces of the samples are cleaned of any fine ground material resulting from the trimming process. Samples are evacuated briefly under toluene to reduce the quantity of free gas, then loaded into coreholders at the specified net confining pressure. Toulene was injected at a constant rate of not more than 0.5 cm /min until effluent was clear, with a minimum of two cycles with soak time used to facilitate the cleaning process.. Decalin was injected at a constant rate of not more than 0.5 cm /min until effluent was clear, with a minimum of two cycles with soak time used to facilitate the cleaning process.. Toulene was injected at a constant rate of not more than 0.5 cm /min until effluent was dear, with a minimum of two cycles with soak periods again used to facilitate the cleaning process. The net confining stress for each sample was adjusted to specified values and then permeability to toluene was measured. Permeability to liquid data was calculated from the experimental data and measured sample and fluid parameters using Darcy's law. Following analysis samples either went to High Pressure Mercury Injection or Petrophysical measurements. High Pressure Mercury Injection Testing was performed using the Micromeritics Autopore, an automated, high pressure mercury injection device which operates at injection pressures of 0 to 55,000 psia. Each test sample was weighed, then loaded into a glass penetrometer consisting of a sample chamber attached to a capillary stem with a cylindrical coaxial capacitor. Each penetrometer used was selected on the basis of how well its capacity matched the sample pore volume to maximize accuracy and resolution. The sample /penetrometer assembly was weighed, then placed into the low pressure system. The sample chamber was evacuated and filled with mercury, then the pressure was increased incrementally to slightly above atmospheric pressure. At the end of the low pressure phase the assembly was temporarily removed and re- weighed, then placed into the high pressure side of the apparatus. Pressures were increased incrementally to a maximum of 55,000 psia. Time was allowed at each incremental pressure for saturation equilibrium. The volume of mercury injected at each pressure was determined by the change in capacitance of the capillary stem. The pressure was decreased to ambient and the sample unloaded. A final weight was recorded to calculate the residual mercury saturation. Micromeritics data were imported to a spreadsheet and the mercury volumes calculated. A conformance (correction for surface roughness) value was selected, volume corrections made, and saturations calculated. Pore throat size, fluid system pressure conversion, and height data were calculated using "typical" parameters which are reported at the end of this discussion. Other Calculations 1. Pore entry radii were calculated using the formula: Ri = 2T * cos 0 * C Pc where: Ri = Pore entry radius, microns T = Interfacial tension 0 = Contact angle C = Unit conversion constant (to microns) = 0.145 Pc = Mercury injection pressure, psia. 2. J- Function values are calculated from capillary pressure (or mercury injection) data and basic sample properties using the following equation: J- Function = 0.2166 * Pc * (K/d))'' iii (T * cos 0) where: Pc = Injection pressure, psia T = Interfacial tension, dyne /cm 0 = Contact angle K = Permeability to air (or Klinkenberg), millidarcys = Porosity, fraction. 0.2166 = Factor used to cancel units and make "J" dimensionless 3. Conversions of pressure from one fluid system to the others are calculated using the example formula: PC = PC(meas.) * (T * cos 0) (T * cos 0)(meas where: PC w) = Capillary pressure in a gas -water system PC(meas) = Capillary pressure of the measured fluid system T = Interfacial tension 0 = Contact angle 4. Height above free water is calculated from laboratory capillary pressure data using the following equation: Pc = Pc (Tcos0)R _ (TcosO)L Height = PC _ (Pw - Ph) where: Pc = Laboratory measured capillary pressure TcosO = Interfacial tension * cosine of contact angle (reservoir) TcosO = Interfacial tension * cosine of contact angle (laboratory) Pw = Reservoir density gradient, water Ph = Reservoir density gradient, hydrocarbon T = Interfacial tension 0 = Contact angle SUMMARY OF CALCULATION PARAMETERS ( (T) Contact cosine Interfacial Fluid System Angle Contact 0 Tension T cosine 0 Laboratory Gas -water 0.0 1.00 70.0 70.0 Oil -water 30.0 0.866 35.0 30.3 Gas -oil 0.0 1.00 24.0 24.0 Air- mercury 140. 0.765 485. 372. Reservoir Oil -water 30.0 0.866 30.0 26.0 Gas -water 0.0 1.00 50.0 50.0 Density Gradients water = 0.433 oil = 0.346 gas = 0.100 iv Final Routine Core Analysis Distribution Nine (9) copies of this report have been prepared for Anadarko Petroleum Corporation. The final report distribution can be found in the back of this report. The contents of this report, the CT scans and all graphs & plots are presented on the CD ROM located at the front of this report. We sincerely appreciate the opportunity to provide these data to Anadarko Petroleum Corporation. Brett Elliott Core Laboratories Houston ATC Core Analyst September 1, 2009 References 1. "Recommended Practices for Core Analysis ", RP 40, Second Edition, American Petroleum Institute, February 1998. V Cwrtlt P TRfl run sraetrTS CMS -300 ROTARY SIDEWALL ANALYSIS Anadarko Petroleum Corporation Wolf Creek 4 Foothills Program North Slope, Alaska CL File Number: HOU- 090207 Date: 07/23/09 This report is based entirely upon the core samples, soils, solids, liquids, or gases, together with related observational data, provided solely by the client. The conclusions, inferences, deductions and opinions rendered herein reflect the examination, study, and testing of these items, and represent the best judgement of Core Laboratories. Any reliance on the information contained herein concerning the profitability or productivity of any well, sand, or drilling activity is at the sole risk of the client, and Core Laboratories, neither extends nor makes any warranty or representation whatsoever with respect to same. This report has been prepared for the exclusive and confidential use of the client and no other party. Anadarko Petroleum Corporation CL File No.: HOU 090207 Wolf Creek 4 Date: 07/23/09 Foothills Program Analyst(s): BLE, JR, AC, LA, JH North Slope, Alaska CA CMS -300 ROTARY SIDEWALL ANALYSIS Net Confining Permeaby Saturation Grain Sample Depth Stress Porosity Klinkenberg_ Kair _ b(air) Beta Alpha Oil I Water Density Footnote Number (ft) (psig) ( %) (md) (md) psi ft( -1) (microns) % Pore Volume (g /cm3) B -56 1487.00 1250 5.95 .016 .039 41.09 3.94E +12 2.11E +02 2.664 B -54 1806.00 1550 10.80 2.71 3.21 3.75 7.52E +10 6.58E +02 2.659 B -2 2033.00 Ambient 17.03 N/A N/A N/A N/A N/A 2.678 (1), (5) B -4 2043.00 1750 16.14 69.7 82.8 3.19 3.18E +08 7.19E +01 2.645 B -49 2044.00 Ambient 18.28 N/A N/A N/A N/A N/A 2.662 (5) B -48 2045.00 1750 16.98 133 144 1.41 2.04E +08 8.73E +01 2.647 (3) B -47 2047.00 1750 16.41 86.3 103 3.19 2.20E +08 6.17E +01 2.651 B -46 2050.00 1750 13.25 23.0 25.3 1.79 1.16E +09 8.65E +01 2.670 B -5 2051.00 1750 15.51 73.1 83.9 2.51 2.83E +08 6.69E +01 2.647 B-45 (B) 2055.00 1750 2 14.01 26.8 29.1 1.58 1.15E +09 9.93E +01 2.653 (1), (3) +t ? $.1 'l:+t`l1_ 0 tr- ? . ;'29.$ : ' ' ` : : '( 4�), �l%:t�3 ' tom. , '1 +4.40 2.5.6 13:2 1:.8i. B-44 2056.00 1750 14.19 34.6 38.7 2.09 7.01E +08 7.83E +01 2.650 B-7 (B) 2058.00 1750 14.98 57.1 61.4 1.29 4.13E +08 7.64E +01 2.643 (1) t . i3-` (`A 'i'750 f "Y3' 51:2.. . 654 130 6. 1804O1 - :b 48.6 - 2: , #; 6 B -43 2060.00 Ambient 13.71 N/A N/A N/A N/A N/A 2.662 (1) B-8 2064.00 1750 15.02 80.8 90.4 1.99 2.61E +08 6.82E +01 2.651 B -9 2067.00 1750 14.60 57.8 63.6 1.73 4.21E +08 7.88E +01 2.653 B -42 2068.00 1750 15.33 76.3 88.9 2.80 2.69E +08 6.64E +01 2.657 (3) B -41 2070.00 Ambient 16.09 N/A N/A N/A N/A N/A 2.659 (5) B -11 2077.00 1750 12.28 3.87 4.83 4.96 3.73E +09 4.66E +01 2.666 i B -12 2079.00 1750 13.33 7.77 9.17 3.46 2.68E +09 6.75E +01 2.669 A-41 (B) 2084.00 1750 15.12 36.5 42.0 2.65 5.40E+08 6.39E+01 2.653 (3) A-41 (* t a��) . iat ' *) 2 $* ., 7 X01 they. .1 , , :s . -. A -40 2086.00 1750 6.63 .281 .318 3.13 1.79E +12 1.64E +03 2.693 (1), (3) B -14 2086.00 Ambient 4.89 N/A N/A N/A N/A N/A 2.737 (5) B -19 2135.00 1800 2.81 .019 .026 9.44 2.35E +13 1.44E +03 2.713 A -39 (B) 214800 1850 13.78 37.5 43.5 2.81 , 7.32E+08 8.86E +01 2.651 (3) A439(A) . '13 ,', :;: # 14:46. ` '.47.$ i4' 114 ... e + it) , 5. 'R)'1 tit , : 066 :" Y "'' Page 1 ■ Anadarko Petroleum Corporation CL File No.: HOU 090207 Wolf Creek 4 Date: 07/23/09 Foothills Program Analyst(s): BLE, JR, AC, LA, JH North Slope, Alaska tare lt48:t . roar+' CMS -300 ROTARY SIDEWALL ANALYSIS Net Confining Permeability Saturation Grain Sample Depth Stress Porosity Klinkenberg Kair b(air) Beta Alpha Oil 1 Water Density Footnote Number (ft) (psig) ( %) (md) (md) psi ft( -1) (microns) % Pore Volume (g/cm3) B -22 2155.00 1850 11.09 N/A N/A N/A N/A N/A 2.645 (3), (5) B -23 2166.00 1850 14.89 30.8 33.9 1.81 8.78E +08 8.71 E +01 2.659 (3) A-37 (B) 2181.00 1850 13.11 37.4 40.1 1.28 7.06E +08 8.54E +01 2.659 (1) (3) .k.314/ ` 2 , ? 1380 28:4 303' 1::23 1518E+09: - '108E :1"1:0. 35.6 2'..613:: ' 0),r(73. A -36 2259.00 1900 5.04 .007 .028 99.14 2.12E +14 4.67E +03 2.747 (1) A -35 2267.00 1950 14.28 35.8 39.3 1.75 8.67E +08 1.00E +02 2.640 A -34 2285.00 1950 12.45 14.2 15.9 2.21 2.07E +09 9.52E +01 2.453 (1), (6) A-33 (B) 2297.00 1950 3.47 .0001 .001 302.57 1.41E +18 3.30E +05 2.703 (3) A43,(A) 2297:d0 %980 405.. :0003 .001` 209:06 .t,0704.8- , ' , Itatt404 X1:0 _. -! A. 2 , ` (1 d .; A -30 2463.00 1750 12.98 15.0 16.9 2.28 7.87E +09 3.83E +02 2.640 (1) A -26 2535.00 1850 12.81 6.98 7.55 1.60 1.48E +10 3.35E +02 2.652 (3) B -25 2535.00 Ambient 11.95 N/A N/A N/A N/A N/A 2.433 (1), (5), (6) A-25 (B) 254500 1850 4.78 .067 .094 1014 1.23E +14 2.72E+04 2.717 (1) (3) ,. 2 5'(Ai) _ ' 2 - '. ' 18'50 '6.19 .004''. '.010 111,01.: 5 t1 M4" : 114£ .. !,: G1 : , 9 (1 B -28 2693.00 Ambient 10.58 N/A N/A N/A N/A N/A 2.664 (5) B -33 2858.00 Ambient 9.10 N/A N/A N/A N/A N/A 2.686 (5) A -15 2911.00 2100 3.91 Below instnrment limits N/A N/A N/A 2.745 (2) A -12 2941.00 2150 2.36 N/A N/A N/A N/A N/A 2.675 (5) B -37 3102.00 2250 9.16 .037 .080 31.73 1.74E +13 2.07E +03 2.672 (1) A (A) i 11 00 , '; ;. X10: '4' ;41, « .0001 .0003 291.04 O7E +18 2925+08 ': 00 94 >8 2;725 3 1) ',, ,: A -5 3176.00 2300 4.35 .427 .437 0.50 7.74E +11 1.07E +03 2.724 (1) A -4 3186.00 2300 2.89 .0001 .001 320.24 1.97E +18 3.66E +05 2.715 A-3 3200.00 2300 5.44 Below instrument limits N/A N/A N/A 2.738 (2) A-2 (B) 3222.00 2350 13.57 1.08 1.38 5.97 1.58E+11 5.59E+02 2.685 (3) ,A40044,:`,, 0 ^ 41 x'44.31•.: 1:79 2' 8> 4.30: _ ,.39410 . , 130, 0:ffi . . 1. y ,,22:896 , . A -1 3226.00 2350 9.93 .309 .436 9.69 5.44E +11 5.42E +02 2.659 (3) 1 Page 2 Anadarko Petroleum Corporation CL File No.: HOU- 090207 Wolf Creek 4 Date: 07/23/09 Foothills Program Analyst(s): BLE, JR, AC, LA, JH North Slope, Alaska Core CMS -300 ROTARY SIDEWALL ANALYSIS Net Confining Permeal Saturation Grain Sample Depth Stress Porosity Klinkenberg Kair b(air) Beta Alpha Oil I Water Density Footnote Number (ft) (psig) ( %) (md) (md) psi ft( -1) (microns) % Pore Volume (g /cm3) Footnotes : (1) : Denotes fractured or chipped sample. Permeability and /or porosity may be optimistic. (2) : Sample permeability below the measurement range of CMS -300 equipment at indicated net confining stress (NCS). Data unavailable. (3) : Denotes very short sample, porosity may be optimistic due to lack of conformation of boot material to plug surface. (5) : Denotes sample unsuitable for measurement at stress. Porosity determined using Archimedes bulk volume at ambient conditions. (6) : Denotes sample contains carbonaceous material. } > t i0144riI U 2009: . (B) : Denotes flow- through part of split sample. Permeability greater than 0.1 mD measured using helium gas. Permeability less than 0.1 mD measured using nitrogen gas. All b values converted to b (air) Page 3 Anadarko Petroleum Corporation CL File No.: HOU- 090207 Wolf Creek 4 Date: 07/23/09 Date: 07/23/09 Foothills Program Analyst(s): BLE, JR, AC, LA, JH North Slope, Alaska [Wra APPENDIX A: EXPLANATION OF CMS -300 TERMS "b ", "Beta, and "Alpha" K� = Equivalent non - reactive liquid permeability, corrected for gas slippage, mD K = Permeability to Air, calculated using K and b, mD b = Klinkenberg slip factor, psi 13 (Beta) = Forcheimer inertial resistance factor, ft a (Alpha) = A factor equal to the product of Beta and K am. This factor is employed in determining the pore level heterogeneity index, H. H = log (a0 /RQI) a, microns = 3.238E (3K. 0 = Porosity, fraction RQI = Reservoir Quality Index, microns RQI = 0.0314(K/o) For further information please refer to: Jones, S.C.: "Two -Point Determination of Permeability and PV vs. Net Confining Stress" SPE Formation Evaluation (March 1988) 235 -241. Jones S.C.: "A Rapid Accurate Unsteady -State Klinkenberg Permeameter," Soc. Pet. Enq. J. (Oct. 1972) 383 -397. Jones, S.C.: "Using the Inertial Coefficient, R, To Characterize Heterogeneity in Reservoir Rock: SPE 16949 (September 1987). Amaefule, J.O.; Kersey, D.G.; Marschall, D.M.; Powell, J.D.; Valencia, L.E.; Keelan, D.K.: "Reservoir Description: A Practical Synergistic Engineering and Geological Approach Based on Analysis of Core Data,: SPE Technical Conference (Oct. 1988) SPE 18167. Page 4 Anadarko Petroleum Corporation CL File No.: HOU 090207 Wolf Creek 4 Date: 07/23/09 Foothills Program Analyst(s): BLE, JR, AC, LA, JH North Slope, Alaska CMS -300 ROTARY SIDEWALL ANALYSIS PROTOCOL Sample Preparation Samples trimmed into right cylinders with a diamond -blade trim saw. All sample trims were archived Core Extraction Plugs selected placed were placed in flow through permeability measurements using toluene. Sample Drvina Samples were oven dried at 240° F to weight equilibrium ( +/- 0.001 g). Porosity Porosity was determined using Boyle's Law technique by measuring grain volume at ambient conditions & pore volume at indicated net confining stresses (NCS) Grain Density Grain density values were calculated by direct measurement of grain volume and weight on dried plug samples. Grain volume was measured by Boyle's Law technique. Permeability Permeability to air was measured on each sample using unsteady -state method at indicated NCS. Fluid Saturations Fluid saturations were determined by the Dean Stark technique using the following fluid properties: Brine 1.032 glcc (50000 ppm TDS) Oil 0.845 g /cc (36° API) Page 5 Petroleum Services 6316 Windfern Houston, Texas 77040 USA Tel: 713 - 328 -2565 Fax: 713-328-2567 www.corelab.com Core Lab RESERVOIR OPTIMIZATION ROTARY SIDE WALL TOLUENE PERMEABILITY MEASUREMENTS for Anadarko Petroleum Corporation Wolf Creek 4 Foothills Program North Slope, Alaska July 23, 2009 HOU- 090207 SUMMARY OF LIQUID PERMEABILITY MEASUREMENTS A :T Net Confining Stress: various Temperature: 70 °F Fluid: Toluene Nop RESSEAY b PETROLEUM SERVICES Anadarko Petroleum Corporation Well: Wolf Creek 4 Location: Alaska File: HOU- 090207 Net Companion Plug Depth Confining Permeability Permeability Sample Interval, Stress, Length, Area, to Air, to Toluene, Number feet psi cm cm millidarcies millidarcies A-53* 1254.00 1050 1.745 4.246 - 126. B -56 1487.00 1250 2.406 4.356 - 0.153 B -54 (B) 1806.00 1550 2.092 4.279 - 2.06 B -4 2043.00 1750 2.313 4.264 - 65.9 B-48 2045.00 1750 0.906 4.308 - 84.5 B -47 2047.00 1750 2.614 4.257 - 53.5 B -46 2050.00 1750 2.333 4.275 - 15.7 B -5 2051.00 1750 2.031 4.315 - 40.9 B -45 2055.00 1250 1.246 4.286 28.2 38.0 B-44 2056.00 1750 2.166 4.268 - 26.4 B -7 (B) 2058.00 1750 1.685 4.308 55.0 77.8 B -8 2064.00 1750 1.572 4.279 - 84.8 B -9 2067.00 1750 2.323 4.238 - 19. B-42 2068.00 1750 1.152 4.341 - 46.2 B -11 2077.00 1750 3.120 4.238 - 3.48 B -12 2079.00 1750 2.450 4.246 - 7.42 A-41 (B) 2084.00 1750 1.261 4.268 38.9 29.0 A -40 2086.00 1750 1.612 4.282 - 0.580 I Anadarko Petroleum Corporation Well: Wolf Creek 4 Location: Alaska File: HOU- 090207 Net Companion Plug Depth Confining Permeability Permeability Sample Interval, Stress, Length, Area, to Air, to Toluene, Number feet psi cm cm millidarcies millidarcies B -19 2135.00 1800 2.673 4.253 - <0.001 A -39 (B) 2148.00 1850 1.376 4.260 51.4 45.7 B -22 2155.00 1850 0.940 4.312 - 16.5 B -23 2166.00 1850 1.302 4.260 - 13.8 A -37 (B) 2181.00 1850 1.297 4.308 30.3 54.7 A -35 2267.00 1950 2.672 4.279 - 33.6 A -34 2285.00 1950 2.046 4.227 - 9.37 A -33 (B) 2297.00 1950 1.218 4.198 0.001 <0.001 A -30 2463.00 1750 1.980 4.264 - 18.4 A -26 2535.00 1850 1.129 4.260 - 6.01 A -25 (B) 2545.00 1850 1.061 4.097 0.010 <0.001 A -15 2911.00 2100 2.219 4.191 - 0.332 A -12 2941.00 2150 1.957 3.523 - 0.279 A-14* 3000.00 2150 2.693 4.180 - <0.001 B -37 3102.00 1850 2.026 4.264 - 0.344 A-6 (B)* 3171.00 2300 1.127 4.227 0.0003 <0.001 A -3 3200.00 2300 2.661 4.180 - 0.337 A -2 (B) 3222.00 2350 1.355 4.275 2.16 0.677 A -1 3226.00 2350 1.327 4.271 - 0.188 Footnotes: *: Denotes mercury injection performed after liquid permeability mesurement. No routine data available (B): Denotes liquid permeability part of split sample. SUMMARY OF RESULTS Samples from Wolf Creek 4 Well in were selected for the following SCAL measurements: permeability to toluene after miscible flow - through cleaning and then high pressure mercury injection capillary pressure. The selected samples were from the depths of 1254 to 3226.09 feet. The Permeability to Toluene was used measure a non - reactive liquid permeability. The plug samples were injected with toluene, then decalin, and then toluene again. Each solvent was injected at a low flow rate, less than (5) 0.5 cm /min to minimize clay damage. The samples were then tested at various net confining stresses for permeability to toluene. The results for the samples show permeability to toluene ranged from less than 0.001 to 126 millidarcies after the flow-through. Sample trims were then provided for high pressure mercury injection analysis. Ambient pore volumes and porosity were determined using helium derived grain volumes and toluene saturation data. Permeability values reported were calculated from the mercury injection results using the methods of (Swanson, B.F., "A Simple Correlation Between Permeabilities and Mercury Capillary Pressures" Journal of Petroleum Technology, December 1981). The table below summarizes basic rock properties data and the mercury injection test results. Approximate Median Swanson Threshold Pore Throat Sample Depth, Permeability, Porosity, Pressure, Radius, Number feet and fraction psi µm A -53m 1254.00 308. 0.164 5.7 11.2 A 31 m 2447.00 0.000210 0.070 3990.5 0.00554 A 14m 3000.00 0.000033 0.048 3078.4 0.00289 A -6m 3171.00 0.000058 0.045 1683.5 0.00403 Apparent mercury injection volumes were corrected using a conformance factor determined for each sample from an evaluation of a plot of the apparent injection volume versus injection pressure. The conformance value subtracted is the volume of mercury pressed into surface roughness and around sample edges after the penetrometer chamber is initially filled prior to application of the first pressure. Mercury injection data are presented in tabular and graphic form following this discussion. The tabular data include: the injection pressure, mercury saturation, conversions of pressure to other laboratory systems, and estimated height above free water level. Pore throat size distribution was calculated from the mercury injection test results. These data are typically used for pore geometry characterizations and comparisons. The pore throat size distributions can often help to evaluate the results of other analyses performed on the same, or similar companion, samples. It can also aid in designing filtration requirements for injection projects. Textural effects and pore size distribution are major factors affecting irreducible water saturations, and hence the extent and height of a reservoir's transition zone. In general, pore throat radii can be divided into several categories which can be used in the classification and grouping of the test samples. Microporosity is often defined as pore throat radii of less than 0.50 microns. Core Laboratories The following classification is utilized for this discussion: Classification Pore Radius Pore Radius, microns Number Classification Minimum Maximum 1 micro <0.50 0.50 2 meso 0.50 2.5 3 macro 2.5 >10. These ranges have been included on the pore throat radii histograms. Some of the additional data which are presented on the tabular pages are the "J - Function" and conversions of mercury injection data to (laboratory) gas - water, gas -oil, and oil -water systems. Leverett's J- Function values can be used to normalize data from different samples, converting all capillary pressure data to a universal curve which represents a specific formation or zone. Conversions of air - mercury pressures to other systems can be refined by applying actual measured values in place of the "typical" parameters which are used when measured values are not available. In order to calculate a corresponding height above free water for the mercury injection data, laboratory data are converted to equivalent reservoir oil -water or gas -water values and generic fluid density gradients were used. Ideally, the density gradients should correspond to reservoir values at initial reservoir temperature and pressure. Height values are meant only as estimated values when standard, "typical" interfacial tension, contact angle, and density gradient parameters are used. While these values are often reasonable estimates, actual parameter values should be applied to the conversion equation. Core Laboratories Company: Anadarko Petroleum Corp Sample: A-6m un- Host Plug Well: Wolf Creek 4 Depth, feet: 3171.00 stressed 2300psi I na Field: Foothills Program Klinkenberg Permeability, md: n/a 0.0001 - Formation: - Permeability to Air, md: n/a 0.0003 - Location: North Slope, Alaska Swanson Permeability, md: 0.000058 - - File: HOU- 090207 Porosity, fraction: 0.045 0.044 - maximum Sb /Pc, fraction: 0.00009 R35, microns: 0.00491 R50 (median pore throat radius): 0. 00403 PORE THROAT SIZE HISTOGRAM >100 0 Size 100 O Classifications: 75 0 50 0 25 0 10 0 macro 7.5 0 0 5.0 2.5 1.0 0 meso (Ti � 0.75 0 0 0.50 0 0.25 0 micro 0 0.10 0.075 0.050 0.025 r 0 0.010 0.0075 0 0.0050 r <0.0025 .r 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Mercury Saturation, fraction (frequency) Core Laboratories Company: Anadarko Petroleum Corp Sample: A - un- Host Plug � Well: Wolf Creek 4 Depth, feet: 3171.00 stressed 2300psi I na Field: Foothills Program Klinkenberg Permeability, md: n/a 0.0001 - Formation: - Permeability to Air, md: n/a 0.0003 - Location: North Slope, Alaska Swanson Permeability, md: 0.000058 - - File: HOU- 090207 Porosity, fraction: 0.045 0.044 - maximum Sb /Pc, fraction: 0.00009 R35, microns: 0.00491 R50 (median pore throat radius): 0.00403 PORE THROAT RADIUS DISTRIBUTION • Micro ii. Meso .---- Macro --/10. 0 1.0 0 .0 L 0.9 - `° o 1 --f- Cumulat 0. 18 9- 6 0.8 - ( -40- Incremental - 0.16 U N o as 0.7 - 1 1 % 0.14 ce m 0.6- 1 1 -0.12 0 o d o_ 0.10 a 0.5 I i R35 parameter 1 o 1 Radius, microns at SHg = 0.35 0.08 2 0.4 - 1 2 E c 0.3 - r 0.06 E a) 0.04 >_ 0.2 - c � E E 0.1 - 0.02 � = 0.0� 0.00 c U - 0.001 0.01 0.1 1 10 100 Pore Throat Radius. microns 1.0 - ,..• PERMEABILITY DISTRIBUTION •. 0.9 ' o 0.8 • 9- ' o 0.7 - 0.6 e \ U cts 0.5 0.4 - a 0.3 E 0.2 v As outlined by Purcell (1949) and a. 0.1 ± Burdine, Gournay, & Reichertz (1950) 0.0 1 3 i i 1 1 40. i 111• 0.001 0.01 0.1 1 10 100 Pore Throat Radius, microns Core Laboratories Company: Anadarko Petroleum Corp Sample: A un- Host Plug Well: Wolf Creek 4 Depth, feet: 3171.00 stressed 2300psi I na Field: Foothills Program Klinkenberg Permeability, md: n/a 0.0001 - Formation: - Permeability to Air, md: n/a 0.0003 - Location: North Slope, Alaska Swanson Permeability, md: 0.000058 - - File: HOU-090207 Porosity, fraction: 0.045 0.044 - maximum Sb/Pc, fraction: 0.00009 R35, microns: 0.00491 R50 (median pore throat radius), 0.00403 MERCURY INJECTION 100000 - 0.001 .... . . - 7.------10----__. 10000 - --11L1 111h k , 0.01 _ - . - E 0 - . 1 c: •(7) 2 -1000 , 0.1 0 - 0_ ci _, . o ,.. 1 o o (0 t) o (0 (2) 0 6: (0 c C - 2 0 .0 0 E a) c CONVERSION TO GAS/WATER SYSTEM of 0 a) m 100 - 03 1 ir - 2000 - 1800 MI till 76' 1 2 as - —th MN _ a 1600 • 2-) — (2) 1400 RI . . 1=111 u) 1200 - cc) . . 2 1000 . MI - 10 0 a_ MA 10 _ ....,t 800 - co 600 - ( 0 400 Mr : _ a) 0 MO MI - 200 M - 0 _ 0.00 0.20 0.40 0.60 0.80 1.00 Pseudo-Wetting Phase Sat'n, fraction 1 1 , i i , , . •100 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 Mercury Saturation, fraction of pore space Core Laboratories Company: Anadarko Petroleum Corp Sample: A un- Host Plug Well: Wolf Creek 4 Depth, feet: 2447.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: n/a - Formation: - Permeability to Air, md: n/a Location: North Slope, Alaska Swanson Permeability, md: 0.000210 - - File: HOU- 090207 Porosity, fraction: 0.070 _ - - maximum Sb /Pc, fraction: 0.00019 R35, microns: 0.00632 R50 (median pore throat radius): 0.00554 PORE THROAT SIZE HISTOGRAM >100 © Size 100 O Classifications: 75 50 25 13 10 a macro 7.5 N 0 5.0 2.5 V = 1.0 0 meso 0.75 0 0.500 i � 0.25 0 micro 0 0.10 0.075 rJ 0.050 r 0.025 r _ 0.010 r 0.0075 r 0 0.0050 r J <0.0025 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Mercury Saturation, fraction (frequency) Core Laboratories Company: Anadarko Petroleum Corp Sample: A un- Host Plug Well: Wolf Creek 4 Depth, feet: 2447.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: n/a - - Formation: - Permeability to Air, md: n/a - - Location: North Slope, Alaska Swanson Permeability, md: 0.000210 - - File: HOU- 090207 Porosity, fraction: 0.070 - - maximum Sb /Pc, fraction: 0.00019 R35, microns: 0.00632 R50 (median pore throat radius): 0.00554 PORE THROAT RADIUS DISTRIBUTION Micro ■ Meso Macro -► 0 1.0 0.20 L 0.9 - - 0 18 m - �- Cumula . 1 U 0.8 - j 1 --- Incremental - 0.16 a co 1 0.14 co co 1 2 0.6- 1 1 -0.12 0 o a_ 0.5 - 1 II R35 parameter - 0.10 m -0 0.4 - 1 Radius, microns at SHg = 0.35 _ 0.08 1 3 2 1 c 0.3 - - 0.06 E To 0.2 - - 0.04 c a3 5 0.1- -0 m U 0 0.00 c 0.001 0.01 0.1 1 10 100 Pore Throat Radius, microns to PERMEABILITY DISTRIBUTION 0.9 - Tu o 0.$ \ - o 0.7 °- 0.6 - .) all 0.5 0.4 \.- LE au 0.3 %t 2 - 0.) 0 A s outlined by Purcell (1949) and a 0.1 • Burdine, Gournay, & Reichertz (1950) - 0.0 i._,H•, 0.001 0.01 0.1 1 10 100 Pore Throat Radius, microns Core Laboratories Company: Anadarko Petroleum Corp Sample: A - 31m un- Host Plug Well: Wolf Creek 4 Depth, feet: 2447.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: n/a - - Formation: - Permeability to Air, md: n/a - - Location: North Slope, Alaska Swanson Permeability, md: 0.000210 - File: HOU- 090207 Porosity, fraction: 0.070 - - maximum Sb /Pc, fraction: 0.00019 R35, microns: 0.00632 R50 (median pore throat radius): 0.00554 100000 MERCURY INJECTION 0001 10000 0.01 1 c 0 - -- (i E X O 0 1000 0.1 a m ti a) 3 0 N o (!) U 2 O L U N c CONVERSION TO GAS/WATER SYSTEM 0 0 0) m Q 100 = 2000 1 0! iiii m - 1800 - o ___� ~ - E 1400 __ ri a 0 m =I - w 120 Mi o- 1000 ____= 800 10 1 600 _ � 10 m 400 _111.1 0 - 0 20 0.00 0.20 0.40 0.60 0.80 1.00 Pseudo - Wetting Phase Sat'n, fraction 1 1 I 100 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 Mercury Saturation, fraction of pore space Core Laboratories Company: Anadarko Petroleum Corp Sample: A - 14m un- Host Plug Well: Wolf Creek 4 Depth, feet: 3000.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: n/a - - Formation: - Permeability to Air, md: n/a - - Location: North Slope, Alaska Swanson Permeability, md: 0.000033 - File: HOU- 090207 Porosity, fraction: 0.048 - - _ maximum Sb /Pc, fraction: 0.00006 R35, microns: 0.00370 R50 (median pore throat radius): 0.00289 PORE THROAT SIZE HISTOGRAM >100 0 Size 100 0 Classifications: 75 0 50 0 25 0 10 0 macro 7.5 0 5.0 2.5 1.0 G meso cu 0.75 0 0 0.50 0 FE 0.25 0 micro 0 0.10 0.075 0 0.050 0.025 r I/ 0.010 0.0075 I 0.0050 r J <0.0025 r C 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Mercury Saturation, fraction (frequency) Core Laboratories Company: Anadarko Petroleum Corp Sample: A - 14m un- - Host Plug Well: Wolf Creek 4 Depth, feet: 3000.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: n/a - - Formation: - Permeability to Air, md: n/a - - Location: North Slope, Alaska Swanson Permeability, md: 0.000033 - - File: HOU- 090207 Porosity, fraction: 0.048 - - maximum Sb /Pc, fraction: 0.00006 R35, microns: 0.00370 R50 (median pore throat radius): 0.00289 PORE THROAT RADIUS DISTRIBUTION 1 Micro ► Meso 4 - Macro ---o. c 0 1.0 0.20 . o 0 jcs 0.9 - I 1 - Cumulative - 0.18 0.8 - �, - 1 1 -co- Incremental _ 0.16 e U cu a 0.7 - I I - 0.14 to 2 0.6- I I -0.12 o ° 0.5 0.10 a_ o R35 parameter 0.4 - R adius, microns at SH 0.35 ° 9 - 0 .08 c 0.3 0.06 5 0.2- I I -0.04 c 5 002 I I 0.1- -. ° 0.0 0.00 P. U - 0.001 0.01 0.1 1 10 100 Pore Throat Radius, microns PERMEABILITY DISTRIBUTION 1.0 -. _ 0.9 4 , ^ iy t3 0 0.8 45 0.7 c 0.6 cu 0.5 :' 0.4 ta 0.3 \ , _ 1 a) 0.2 As outlined by Purcell (1949) and d 0.1 B urdine, Gournay, & Reichertz (1950) - 0.0 i .+ + . f . 0.001 0.01 0.1 1 10 100 Pore Throat Radius, microns Core Laboratories Company: Anadarko Petroleum Corp Sample: A -14m un- Host Plug Well: Wolf Creek 4 Depth, feet: 3000.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: n/a - - Formation: - Permeability to Air, md: n/a - - Location: North Slope, Alaska Swanson Permeability, md: 0.000033 - - File: HOU- 090207 Porosity, fraction: 0.048 - maximum Sb /Pc, fraction: 0.00006 R35, microns: 0.00370 R50 (median pore throat radius): 0.00289 MERCURY INJECTION 100000 0.001 10000 0 C 0 . _ l6 E •X O 1 1000 c CONVERSION TO GAS/WATER SYSTEM N ' = 100 — 1 r - 2000 Q _ N 1800 ____ H _ a 1600 _ 0 - 1400 ____ =1 a 1 1200 1000 NW 800 Mr 10 - b - 400 = = == Mil - 200 0.00 0.20 0.40 0.60 0.80 1.00 Pseudo - Wetting Phase Sat'n, fraction 1 1 100 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 Mercury Saturation, fraction of pore space Core Laboratories Company: Anadarko Petroleum Corp Sample: A un- Host Plug Well: Wolf Creek 4 Depth, feet: 1254.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: 341. - - Formation: - Permeability to Air, md: 358. - - Location: North Slope, Alaska Swanson Permeability, md: 308. - - File: HOU- 090207 Porosity, fraction: 0.164 - - maximum Sb /Pc, fraction: 0.858 R35, microns: 12.8 R50 (median pore throat radius): 11.2 PORE THROAT SIZE HISTOGRAM d >100 Size 100 0 Classifications: 75 0 50 0 25 r 0 10 G macro 7.5 feT „) c 0 5.0 U 2 2.5 v 1.0 meso D - 0.75 ct o 0.50 i- 0.25 r=C micro 0 0.10 0.075 0.050 0.025 I 0.010 0.0075 0.0050 <0.0025 Q 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Mercury Saturation, fraction (frequency) Core Laboratories Company: Anadarko Petroleum Corp Sample: A - 53m un- Host Plug Well: Wolf Creek 4 Depth, feet: 1254.00 stressed na I na Field: Foothills Program Klinkenberg Permeability, md: 341. - - Formation: - Permeability to Air, md: 358. - - Location: North Slope, Alaska Swanson Permeability, md: 308. - - File: HOU- 090207 Porosity, fraction: 0.164 - - maximum Sb /Pc, fraction: 0.858 R35, microns: 12.8 R50 (median pore throat radius): 11.2 PORE THROAT RADIUS DISTRIBUTION A Micro Meso 41-- Macro -> c 0 1.0 0.20 0 L 0.9 -� -0.18 i aS 0.8 - 1 - 0.16 S ca • - 0.14 Q- u) 0 - to O - 0.6- I I -0.12 a • 0.5 R 35 parameter I . 1 - 0.10 R adius, microns at SHg = 0.35 - 0.08 O 0.4 i L . c 0.3 --f- Cumulative - 0.06 I id > 0 2 -0- Increment - 0.04 c id 1 1 I v 0.1 - E t 01_- as E i U 0.0 _.. r..�ir�t�t..- '-"'rtirrw.r....r " 0.00 2 0.001 0.01 0.1 1 10 100 Pore Throat Radius, microns 1.0 - PERMEABILITY DISTRIBUTION 0.9 -- 0 0.8 4- O 0.7 c • 0.6 U co i 0.5 \ I • 0.4 13 m a) 0.2 As outlined by Purcell (1949) and • 0 Burdine, Gournay, & Reichertz (1950) - 0.0 - I i I 1 1 1 1 1 i I l l l l i i 1 1 1--I I H+ 1 I+ 1 i l i l '004001 - +- 0.001 0.01 0.1 1 10 100 Pore Throat Radius, microns Core Laboratories Company: Anadarko Petroleum Corp Sample: A un- Host Plug Well: Wolf Creek 4 Depth, feet: 1254.00 stressed na 1 na Field: Foothills Program Klinkenberg Permeability, md: 341. - - Formation: - Permeability to Air, md: 358. - - Location: North Slope, Alaska Swanson Permeability, md: 308. - - File: HOU- 090207 Porosity, fraction: 0.164 - - maximum Sb /Pc, fraction: 0.858 R35, microns: 12.8 R50 (median pore throat radius): 11.2 l00000 MERCURY INJECTION 0.001 1 ___L- I 1 CONVERSION TO GAS/WATER SYSTEM — 2000 - 1600 __ - a 1600 _ 1 �� m 1400 0.01 En 1200 tiami 1 800 800 MIM 400 �� �� _ 2 m w 11 d zoo L7� __ E o � a 1000 0.1 'E- a - 0.00 0.20 0.40 0.60 0.80 1.00 - m w - Pseudo - Wetting Phase Sat'n, fraction — o E _ -_ -_ — U 0 . , c c 0 0 m E D m 100 1 ' 0 r 1 — N `0 o_ 10 - 10 1 X100 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 Mercury Saturation, fraction of pore space Core Laboratories Petroleum Services 6316 Windfem Houston, Texas 77040 USA Tel: 713- 328 -2565 Fax: 713- 328 -2567 www.corelab.com Core La RESERYOIR OPTIMIZATION • ROTARY SIDEWALL PHOTOS for Anadarko Petroleum Corporation Wolf Creek 4 Foothills Program North Slope, Alaska March 18, 2009 HOU- 090207 Anadarko Petroleum Corp. (4\ Wolf Creek 4 Core Lab Foothills Program nrr North Slope, Alaska Sample #: A - Sample #: B - Depth : 1,254.0' Depth : 1,487.0' • Sample #: B - Sample #: B - Depth : 1,806.0' Depth : 2,033.0' II ! Job # Hou- 090207 I I 1 I I I I I I I I It II COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. Wolf Creek 4 Core Lab Foothills Program North Slope, Alaska Sample #: B - Sample #: B - Depth : 2,043.0' Depth : 2,044.0' * 4 0100 1110 1 1 * Sample #: B - Sample #: B - Depth : 2,045.0' Depth : 2,047.0' Job # Hou-090207 1 1 1 1 1 I I I 1 I I I l l l l l COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. 4 Wolf Creek 4 Core Lab Foothills Program North Slope, Alaska Sample #: B - Sample #: B - Depth : 2,050.0' Depth : 2,051.0' 4 0; 0 R .P Sample #: B - Sample #: B - Depth : 2,055.0' Depth : 2,056.0' Job #: Hou- 090207 I l 1 1 I 1 1 II III l I I l I COPYRIGHT © CORE LABORATORIES 2009 600Z S31801V2JO V1 3803 0 1HOI8AdOO 11 I 1 1 111 11 1 1 I LOZ060 - nok :# QOr �j a sxs.: x. '‘ /+, �„•I ;e'+ ,0'L90`Z: u }daa ,0 "V90`Z yldea 6-8 :# aidweS 8-8:# oidwes ,0'090`Z : U}dao ,0'850`Z £b :# eidwes L-8 :# aldwes `adoiS uTioN Wea6oad sll1.141ood yej a.ioj �aaa� 41°M 7) •d,►o� wnaJoJJad opepeud l Anadarko Petroleum Corp. Wolf Creek 4 Co Lab Foothills Program North Slope, Alaska Sample #: B - Sample #: B - Depth : 2,068.0' Depth : 2,070.0' Sample #: B - Sample #: B - Depth : 2,077.0' Depth : 2,079.0' h ill Job #: Hou- 090207 I I t i l l I II ( I t I) COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. Wolf Creek 4 Core Lab Foothills Program North Slope, Alaska Sample #: A - Sample #: A - Depth : 2,084.0' Depth : 2,086.1' Sample #: B - Sample #: B - Depth : 2,086.0' Depth :2,135.0' A: I I I I I( Job # Hou -090207 I 11 1 I I I COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. Wolf Creek 4 Core Lab Foothills Program N n17 an% North Slope, Alaska Sample #: A Sample #: B Depth : 2,148.0' Depth : 2,155.0' ......• - .....,,,,.,• . '.,• .• , f ;„, ,,,, , ;!f" . ." - ..k.•,. , . ,,.,... -• ,• ., • .----. • ,, , ..,, -••-, :::,.--. -,... , _ :,. :., ., „. ,. ,:„, , :: ....., q ,.- •-.. • •• ,„••: ' .,,, •,.,,,.' .: , , ...--,-- , ,K . .,,,, ,..,.....,,, ,...„-, ,.„. ....., _...........,--. „,....,...,, .... ,..., .. ,-. ... -..... - .. . , ''. -Z.-g ........ - .... ......... ,.}.. ..- . Sample #: B Sample #: A , 1 1 Depth : 2,166.0' Depth :2,181.0 1 1 1 1 1 1 111 1 [ 1 1 i 1 1 I Job #: Hou-090207 COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. lettk Wolf Creek 4 Core !ab Foothills Program R,r9/01. MK North Slope, Alaska Sample # A -36 Sample #: A -35 Depth : 2,259.0' Depth : 2,267.0' Sample #: A -34 Sample #: A -33 Depth : 2,285.0' Depth :2,297.0' TW Job #: Hou- 090207 11 I I I I I I I 1 1 1 I I COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. Wolf Creek 4 Foothills Program `°` North Slope, Alaska Sample #: A -31 Sample #: A -32 Depth : A-31 Depth :2,329.0' Sample #: A -30 Depth : 2,463.0' I is , V COPYRIGHT © CORE LABORATORIES 2009 1 1 1 1 V 1 1 I I I Job #: Hou- D90207 Anadarko Petroleum C orp. Wolf Creek 4 co i d Foothills Program North Slope, Alaska Sample #: B - Depth : 2,535.0' fix{ Sample #: A - Depth : 2,535.1' Job #: Hou-090207 11 1 1 1 1 1 1 1 I i 11 I 1 I I COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. Wolf Creek 4 Core Lab Foothills Program North Slope, Alaska Sample #: A -25 Sample #: B -28 Depth : 2,545.0' Depth : 2,693.0' Sample #: B -33 Sample #: A -15 Depth : 2,858.0' Depth :2,911.0' 5 ' Job #: Hou- 090207 1 1 1 1 1 1 1 1 I 1 1 1 I I 11 COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. Wolf Creek 4 [Ore Lab Foothills Program �' "'" North Slope, Alaska Sample #: A -12 Sample #: A -14 Depth :2,941.0' Depth : 3,000.0' filli 1 Sample #: B Sample #: A -6 Depth :3,102.0 Depth :3,171.0' Its , , ate. }g, 0 Job # Hou-09020 7 1 I I 1 I I 1 I i I I I I 1 COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. Wolf Creek 4 Foothills Program .nn.a„err ...,,. North Slope, Alaska Sample #: A - Sample #: A - Depth : 3,176.0' Depth : 3,186.0' N it Sample #: A - Sample #: A - p P Depth : 3,200.0' Depth : 3,222.0' Job #: Hou- 090207 11 1 1 I I I( I I I ( I I I ( COPYRIGHT © CORE LABORATORIES 2009 Anadarko Petroleum Corp. cf-S' Wolf Creek 4 Lore Lab F oothills Program North Slope, Alaska Sample #: A - Sample #: Depth : 3,226.0' Depth • Sample #: Sample #: Depth : Depth 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 COPYRIGHT ©CORE LABORATORIES 2009 Job # Hou- 090207 ■ Petroleum Services 6316 Windfem Houston, Texas 77040 USA Tel: 713 -328 -2565 Fax: 713- 328 -2567 www.corelab.com Core Lab RESERVOIR OPTIMIZATION UItracan CT can Report for Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska March 5, 2009 HOU- 090207 Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 00 I 00 : A ° I s cm A Depth: (ft) 1254.00 i 2 F Plug No A-53 t 3 1111 t 5 "- 6 0 1 2 3 4 0 1 2 3 4 cm WI II#1110011 n1 1 IrI c11 11:111p : U m l 9 11- 10 11 # UltraScari 1111;1111!L'111111 Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0° 90 , ,„s*, . 4 .= E. '''... , tt ---4 °'' itials - 1 4 .,..4 tIvl`a*, cm Depth (ft) 1487.00 ,--:-- 1 Plug No , * r 3 B-56 4 -------- ' — ' 0 -- 7 5 F— A . , -= — t B : ,.. I , CM i 1 I 'VI Ili I 11) i y I )1 L 1 1 I 1 1 1 I I I I p 1 1 1 1 1 In 111)1111) 1 11 ill! 1 j 1 1 n N I I I i 1 1 t 1 1 1 ■ I I 1 I W ■ . 1 1 7 . I . * 1 , 8 „,..„,. i 9 10 11 12 E- ,._ UlitraScatri ... „ „. . . ‘ , - At Anadarko Petroleum Corporation Wo Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0° 90° I Axials Axials B Depth: (ft) El 1806.00 F -- 1 LE '--. _ 2 Plug No `E— , ,,-2 - 3 B-54 111 _ _-__ . .,..., ,--a-- 4 __ F ■ t I i 5 * A 0 1 2 3 4 0 1 2 3 4 ,-,_ i B c:Ii 7 l r 8 t• . - 9 1 E--- --, 1. - 11 P-- 12 1 I UlitraScart 1 Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lati North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090297 Date: March 5, 2009 O 90 Axials . Axials A Depth: (ft) 2033.00 t 2 Plug No B-2 t 3 • • 4 5 A 6 0 1 2 3 4 0 1 2 3 4 • B : , 9 10 11 12 UltraScani ,olenorl4bh*.: Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Com Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 I 904) Axials A B Depth: (ft) 2043.00 2 Plug No 1111 3 B-4 A 4 " E 6 0 1 2 3 4 0 1 2 3 4 111111 E3 8 III 9 10 11 12 UltraScari At Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 • t''. : 0 ' '''' 4,:. 'r° : :i 4, :::':,;;; t i,:7,2 , ' ' , ' 7 77, Ailiii:: Axials .. . . . . I cm A B Depth .. (if) L_ 2044.00 1 ..... 2 Plug No E---- B-49 r 1 III - 4 --- 5 111 - A _ 6 s .4 --, 0 1 2 3 4 0 1 2 3 4 ,,,, 'I IIIIIIIIIIIIIii ern l'illIliillIIIIIIIIyliill clinall1"1"Pl'Ill ? H oll ) I H h I _ I 7 1 1 E 9 k 10 -E- vt 12 I I I 1 [ UltraScari - .... .,. [,„,,, , : ,,', ,,,,f, :::,„,„ •:...., T,, ,,,, Anadarko P Corporation Wolf Creek 4 Well Foothills Program Core Lab" N o rt h Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 I ',Iti- ,,- 1 -I --, , ,-4,. ..''''-.4"",`I ' 0 1 ...., ', Axials Axials , Depth (ft) ,=-- 2045.00 .1:- :-- I - 2 111 11 Plug No.: 3 B-48 - -.-- T 4 ,— -=.- '--- , A,... I 4- 6 — B 3 0 1 2 3 4 ,. 0 1 2 3 4 1, ca 'IlliiiiI)1;iilltii , IIIII)Iiiii 1111[111i crn 1 1 I ■111)1 1111111111111 11111 111111111i ini11111 III I I 1 I In'. ) I liftil I f I , 1 1 7 - ... TTY -.-"- 9 - _ - 10 '' -- 11 = 12 UlitraScari .., ,,„,....,..,...,....„,.:,......., , ■ 4 Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0° 90° Axials Axials A Depth: (ft) 2047.00 = 2 Plug No.: j 3 41111) B-47 t 4 A 5 6 0 2 3 4 0 1 2 3 4 : 7 1 1 8 9 - 10 - - 11 12 UltraScart A. Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 I 100 1 Axials Axials '- A B Depth (ft) 2050.00 - 1 10.. ."=. ' Plug No ' - 3 B-46 - --- ,- 4 - A , 5 A i 6 ' B - 0 1 2 3 4 0 1 2 3 4 :ii cr lyilllp Ililli , 8 - _,-- 9 10 11 12 I UltraScan • At Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Com Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 O 90 A xials ,;;!.i...:',?. , Axia Is I 0 A B Depth: (ft) = = 2051.00 ,.. 1 2 • /1 Plug No,: ...._ 3 B-5 ...... ... .....„, ... ,.,. A — 5 ----"-- I 16 0 1 2 3 4 0 1 2 3 4 , cm 111,11111)liiOn i liiliiipliilltlijil : Iyily II B 1 ;--- E 8 l 1 '-- ----- 9 r ---- 1 0 1 11 ' E 12 E , ' UltraScad Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Care tae North Slope, Alaska PETROLEUM SERVICES File N13.: HOU-090207 Date: March 5, 2009 Op 90 I Axial Axials Axials 1 A B Depth; (ft) 2055.00 1 ilo , 2 • I Plug No.: - 3 B -45 4 L 8 A � 0 1 2 3 4 0 2 3 4 I II ll�l� ����e����<<����������114��(lr 1 '1111 � I'? 1��f�4�����,��e �����1� 6 7 S B 1 , 1 L i r 1 9 1 — 1 _ -- 10 1 11 12 i 1 a ry UltraSean t - At Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lati North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 o '''', .'4Ark , t'""'' Axtals i Axials .,. Depth: (ft) CM 1 1 A 2056.00 _ 1 = L-, Plug No = — 3 B-44 . - , - 4 ' E 5 A 1 , 0 1 2 3 4 0 1 2 3 4 I , m u, lyi lyiiriyi( ilHilid c lyillip IICIIIMililliffiHNII(Ii 1 i B 1 , 7 i = I = = 1 _ 8 = i 9 1 1 7.1 to 1 _ 1 E 1 . 11 1 I 12 r *-'- 1 UltraScali i-,,,wo .4, Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 ..* .„:„:„..........„ 900 .k Axials I A B , Depth: (ft) 2058.00 • ,..._. 2 Plug No.. 1 3 B-7 • ...... ....., — --- . , ..._.... _ 4 .._ A ., 5 ..1 r- 6 0 1 2 3 4 0 1 2 3 4 :iyipyliitilhit ifliiii : iyIllyilli t • - • 7 1 1 B IE ..,,,. ---:. 9 l0 11 E 11 , ... 1 12 UltraScan . ......... ..... .. . . .... .. ..,.... ..... .........„ .....,......,..., . ., , ......„......,_..,............,,. ..,.., , .. A Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 . . V.4 0° ; 90 Axials Depth: (ft) A 2060.00 r 2 41 Plug No,: - 3 B-43 4 5 A - - 6 B — 3 4 0 1 2 3 4 ex iy117111?1111)1111j1(11j1Iiillillic t_ 7 8 9 10 — 11 12 UltraScari 4,,,..4-3" Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 Axial • 91 A Depth: «1) 2064.00 2 Plug No_ _=- — 3 B-8 11111) • = 4 F _ A 5 6 0 1 2 3 2 3 4 B IYI IYIII?II1YI 741i Cr i n :Iyillip l y 1011q1ffillifyTi CM 1 7 8 . .P; k 9 - V10 . 111 12 UltraScani att Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 . 0° 90° Axials A Depth: ( ft) 2067.00 2 11111 11111 Plug No,.. B-9 4 E__ 5 A 6 0 1 2 3 4 0 1 2 3 4 c IyI 8 . _ --- 9 10 11 12 !IIiii_iiii -- At 1 Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core tali 1 North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 , Date: March 5, 2009 Axiala ': Axials 0 I 9C1° I 1 an A B Depth: (ft) 1 Depth: 2068.00 i 1 1 p.--- : Plug No.: r --.--. 3 B-42 • L-,-. 1-- 4 A = , .- , ■ 0 1 2 3 4 B ----- cmilyi iiplii0tyllirliiliiiiiiir c iip i 1 E 8 1 C:: 9 1 i 10 F : t 11 E -L 12 UlitraScart ....,,,„,. A Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lali PETROLEIJM CERVICES D File No.: HOU-090207 ate: March 5, 2009 1 , Ito, is , , 1 1 ,., , ,., 1: ,,,, ' , o - l'":: ' . '' ,. Axiais ..,, 41 . 7„. . . ...-,,,,.., ?; = - ,° * ' ''''' - .,-,- .-xl''' '" ' ''''' 14 0 •,t.''`...'.: ,...- k '., ar, Depth: (ft) I A B 2077.00 P-- t- 2 Plug No B-11 1 3 ---- _ , t- 4 '--- A '''' 5 , 0 1 2 3 4 0 1 2 3 4 - 6 I 'I 1 ) 7 B m in iyi lyi iyi 1 1 : II I liii thy! i 11 I ii i iI I 1 i - 1 s s. ,---'-. —, ...... , I 8 t _ i— t1 P - - - 1 t 1 1 1 12 k I -islialtotaN1 '- '7 ` ..';*: ” 4"1:71:II4;I**' . 5i . l tIl' i i ° , .... Ultralicali Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lail North Slope, Alaska PETROLEUM SERVICES Fite No.: HOU-090207 Date: March 5, 2009 0 Axials Axials cni A Depth: (ft) 2079.00 • 2 Plug No 3 B-12 4 _ . - 5 A 6 0 1 2 3 4 0 1 2 3 4 iyIllyllrylylITT 7 lidy 7 1 1 8 6 g -10 11 -112 UltraScari Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core tali PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0° 90° Axials Depth: (ft) 2084.00 1 2 Plug No. 3 A-41 • 4 5 A r 6 0 1 2 3 4 0 1 2 3 4 7 -hill lin ii 8 10 r 12 UltraScan A Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lab PETROLEUM SERVICES File No.: HOU-090207 Date: Mardi 5, 2009 I 0° 90 ° ''' '''' -1 ' '' *. ' - ' 1 "''. ' 'Axials Axi.ais 1 --__..... I cm A Depth: (ft) _ 2086.00 2 • L- • —_-, Plug No 3 A-40 i . 5 0 1234 0 1 2 1 1 3 4 B ', crni, cr i 111111111,'1 j (11PIlliltlii. in I 1 I f 8 ,.......,,,,.... .,:' . ,.. .. 9 10 r_ 11 12 UllitraiScart '--''''-''''''''' ..,..,..,.!....,,....,-,-..-: Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 00 I 900 Axials Axials cm A B Depth (ft) 2135.00 E _L---- i ..- Plug No.: 3 B-19 4 -, 5 1 I , 6 0 1 2 3 4 0 1 2 3 4 CT 1;€.1II r : I i llitipliyi 1.1 1 1 7 I I 8 ..._.,0" _ 9 ,--- ---- 10 E - r -- 11 I= - 112 i I UltraScart , gr--4, , ,,,,,T , .. , - - ;:,. , ..............,,, . _ • Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lb North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0° 90° Axiais Axiais A B Depth (ft) L-- 2148.00 2 Pliag No A-39 4 A 5 - 6 0 1 2 3 4 0 1 2 3 4 .11111 • 7 9 • 10 11 12 UlitraScari '14 I Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab N o r t h Slope, Alaska PETROLEUM SERVICES File No.: H0U-090207 Date: March 5, 2009 0° 90° Axials Axials CM I A B Depth: (ft) _ _ = 2166.00 i 2 _-.- = Plug No.: B-23 11 • F r 4 - _ f 5 1 'F 1 -1--- 6 — B 0 123 4 0 12 3 4 1 , _ — cm : 8 IyIllyiirly1MINIIIIIII 11, = , I 1 I I in 11111111 7 1 1 ,"1---- - . 8 ...- - -- 9 _• = ---= 11 I t 1 12 E I I I UltraScan - jIIIIIIIIIIIIIIIIIIIMIIIIIIMIIIIIIIIIIIIIIIIIIIM '-:::.., -,-. ,, . • At Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 : 00 Axials Axials I A B Depth: (ft) 6 2181.00 6_ 1 „.., L ,. -,---- , = 411111 E Plug No.: = —3 A-37 '-- r. 5 A .._ . _ 6 ._ i 0 1 2 3 4 0 1 2 3 4 = . cr lII)111y111011,111i1j111IJIIIIIIyTl i c :: lylily1111011AlijitililtillIIIIIII IP II 1 I 1 [ 1 .... 7 - E. - 1F-- k i B r 8 , . . .. L . 9 - 111 - 12 UltraSCalli . 1.1-5Y. 111111.11111111111=11111111.111111111111111M&‘krai 4:- Alt Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Care Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 i _ 0 _ ; 1140,4 . . ..., , „rn=0-1. . 110 0 vu Axiais , `'' ' Axtals ..., ... ,,„,* 1 cm A Depth: (ft) , z -- - 2259.00 E ------ 1 2 Plug No ......._- I , _ A-36 t 3 •1 _ 4 5 , A 0 1 2 3 4 0 1 2 3 4 6 B in I 1 t 7 I 1 8 9 10 -F -- 11 12 ......,„.. UltraScan '' - 2...'Oti , i;tii...4.i.:r, - -- -I- Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No: HOU-090207 Date: March 5, 2009 0° 90° Axials A)cials A Depth: (ft) 2267.00 1 2 Plug O fl 3 1111 A-35 4 t 5 A 6 0 1 2 3 4 0 1 2 3 4 B II 7 I I 1 t 8 10 11 12 UltraScan Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Com Lab' PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 00 I - AXIalS Axiais A Depth: (ft) 2285.00 -- 2 Plug No A-34 3 11 4 t 5 A 0 2 3 4 0 1 2 3 4 - 6 ' 1 7 - r 8 10 11 12 UltraScari Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program (ore La b North Slope, Alaska PETROLEUM SERVICES File No.: HOU- 090207 Date: March 5, 2009 0 90° Axials Axials Depth: (ft) A B 2297.00 2 Plug No.: 3 A -33 4 5 7_ 6 ! 0 1 2 3 4 0 1 2 3 4 c� IiI I illl �� III! {111 ,I1�i�if�4�II�1�11�1 11�iSil�ll 11 1= 7 8 s t b0 r 11 12 UltraScari i A , i I Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0* . ...7 - : :-. ' T ' ' ' ' I 15iiiiRiiic:::;i4 1 7 '1.,;: Axials Axials Depth: (ft) = , .:.. 2329.00 ----- Rug =- t 2 Il l L No,: :; I 3 , A-32 , . ......-----, 4 5 A 6 01 2 3 4 0 1 2 3 4 , ,,,,. B 7 1 y iiii rl hili l ili p li T yv i ,,,,, lyiluilurityL 8 -E-- 9 i = - ' - . - 10 -E- 11 E-- - V - 12 k 1 , .....,„...........„............................. ,.. .„ , Ultra!icart ...... At Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lab 1 PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 , 0° 90° I -IIII Axials Axials I A B Depth: (ft) 2463.00 1 ----- ,...- 41 P Plug No.: • - 3 A-30 1 4 ,.. t 5 A -6 0 1 2 3 4 0 1 2 Cm ii HAIL 1 ll'1 cm ,,, I'r■ H IlOMIlli\IIII 3 I 4 I 1 1 F- 9 10 fll '— 12 1. UltraScari Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0° 90° Axials Axials cin A Depth: (ft) 2545.00 2 4111 11110 Plug No 3 A-25 4 • 5 A 0 1 2 3 4 0 1 2 3 4 t 6 crn . cr - 1 7 8 9 10 11 12 i Ull'traScari Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 00 90 Axia Axia cm I A Depth: (ft) 2911.00 E , Plug No: 41111 3 A-15 41110 5 A 6 0 1 2 3 4 0 1 2 3 4 7 1 1 8 9 10 11 12 UllitraScati '41 Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 00 90 Axials A Depth: (ft) A 3000.00 2 Plug No 3 A-14 111111 4 ff- H A t_ 6 1 2 3 4 f;f crn ir 7 8 r- 9 10 11 12 UlitraScari At Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core La13 PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 90 1 :,..- , -; ;; ;`l.'7,..:. ; :l',.. AxialS ,..,' ;;f:':: .4 X1-311 A B Depth (ft) P-- 40 .—... 4110 3102.00 -- I V-- - , I Plug No.: --- 3 B-37 F- \ .., 4 'ff , , .... 5 ,... i i 6 0 i 2 3 4 °m WI 11 I? i l l I I i l l in ylittplitOtyL i it 1 it 1 tt t it t H I :I 1 2 3 4 1 I 7 , • r ■ .... ' . i . h1■ , :p ' t ...;tf,i1:1.'t: 9 = 11 12 I F . UllitraScatri ki Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 . 90° Axials : ''''' .. .:, qn A B Depth: (ft) -- 3171.00 i 1 7 2 Plug No.: 1110 - A-6 3 . ,., - . 1 5 A -L-- 6 1 0 1 2 3 4 0 1 2 3 4 7 'Y'1 c :I'Y'IHP 'TIHNHP'0 1 i 7 B — 8 9 --- 10 r 11 12 F UlltraScani Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No : HOU-090207 Date: March 5, 2009 t ?. 0 ono Axials A B Depth: (ft) 3176.00 2 Plug No A-5 = 4 --- 5 A 0 1 2 3 4 0 1 2 3 4 *11 1 l IN IN a 7 (1 ( 8 9 10 11 r12 UlltraScart i A , Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0° 90° 4' ' " Axials ''!" , :rfaiit*Vi; : I • ' 1''''''4,t s '•.•' t it , - Depth: (ft) - E - -- 3186.00 - i _._. • • Plug No A-4 3 t 4 E. -- - - k - 5 A 0 1 2 3 4 0 1 2 3 4 F3 --- c : lyilli ' Iplipliiitylii CI : 1. H 1 1 7 i .._, r t._ L --- 8 1 9 10 11 12 ,_..,.. = =._ UlitraScari ...:...:-.;..--, . ... . Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program North Slope, Alaska Core Lab PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 0 90 Axials Axials A Depth: (ft) 3200.00 1 2 Plug No. 3 A-3 4 11 1 4 -_- 5 A 0 1 23 4 0 1 2 3 4 E B lip 11,11 1 1 1 1111 1 1111111111111y1Ci i cr l' 1 7 8 9 10 E 11 12 UltraScari Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES - File No.: HOU-090207 Date: March 5, 2009 - 0 90 Axials ' Axials q. A Depth: (ft) 3222.00 li --. , 2 Plug No - 3 , 1 A-2 — _ — , 4 ----- • f , '-- I A - ^ 2 3 4 ' 7 li i lll i ll i ll i lli r ltlillil i ltlil l :1 ijitil?il • 7 , ' 1 I " 1 1 " " --- I r:7 ' ', ' -IF $1 1. 9 E_ to 11 12 t= UltraScan Anadarko Petroleum Corporation Wolf Creek 4 Well Foothills Program Core Lab North Slope, Alaska PETROLEUM SERVICES File No.: HOU-090207 Date: March 5, 2009 00 I 90°3t;:::::jli;t!fll$i': Axia Is ....... .. e .. I A B Depth (ft) , ., : , 3226.00 E- --, 1 „ Plug No,: i ) 3 , A-1 ',. , ,,,. 4 ---- — ----- 5 '-_• A 6 i 0 1 2 3 4 0 1 2 3 4 I , i cr :II I IIIII r illii?111 1 1)1111IIIIIIINI11,1 1 :HP, IIII Ii - , B 1 1 1 7 -, 8 ,L. 1 , ,._ io 1 il , 2 k 1 UtitraScairi J Anadarko Wolf Creek #4 RSCT C/T scans 4/16/2009 S1 = X psi/ft PHASE #1 Special Core Analyses C/T Grades 1 to 5 (1 is best) 3 pages pore = 5.5 ppg to 2,300' and 8.1 ppg below 2,300' S2 = S3 (assume no breakouts) RAS/PAI. Inc Porosity and Permeability @ the Net Effective Stress of XXXXpsi 0.286 psi/ft 0.421 psi/ft S3 = 1.17 psi/ft Houston Samples MNEStress MN ESNominal MMNES NOMINAL VALUES FOR CORE ANALYSIS, Test Sample Depth, reel 0 % K, and Depositional Environment C/T Scan Notes pA, Si, psi/ft St, psi S2 = S3, psi Pore P, psi Composite, psi/ft A -53 1254 1 1054 1050 1.04 1310 359 0.841 B-56 1487 2 lams 1255 1250 1.05 1562 425 0.844 9-54 1806 2 lams 1530 1550 1.06 1919 517 0.847 B -2 2033 5 1729 1750 1.07 2174 581 0.851 B-4 2043 1 1750 2185 13-49 2044 3 shortlams 1750 2186 13-48 2045 1 short 1750 2187 B-47 2047 1 mottled 1741 1750 2189 0.851 6-5 2051 2 mottled 1750 2193 B-45 2055 2 split 1750 2197 B-44 2056 1 1750 2198 B -7 2058 2 split 1750 2200 B-43 2060 3 short/frac 1752 1750 1.07 2202 B-8 2064 2 split 1750 2206 B -9 2067 1 1750 2210 13-42 2068 1 short 1750 2210 13-41 2070 2213 B-11 2077 1 1750 2220 13-12 2079 1 1768 1750 2222 0.851 A -41 2084 1 1750 2228 A -40 2086 4 frac 1774 1750 2231 B-t4 2086 2231 597 6-19 2135 2 lams 1816 1800 2286 A -39 2148 1 1827 1850 2301 0.851 6-46 2150 2303 8-22 2155 2309 6-23 2166 3 minorlracs 1850 2320 A -37 2181 3 fracstsplit 1850 2336 A -36 2259 3 minorfracs/lams 1927_ 1900 1.07 2422 646 13-46 2050 2 mottled 1744 1750 Test Sample Depth, feet 0, % K, and Depositional Environment C/T Scan Notes A -35 2267 1 1950 2431 A -34 2285 5 2450 A -33 2297 1 1954 1950 2462 A -32 2329 5 1667 1650 1.07 2498 981 A -31 2447 1.08 2635 A -30 2463 1 1771 1750 2653 8-25 2535 ' 2733 • • A -26 2535 2733 1067 A -25 2545 1 1830 1850 1.08 2744 8-28 2693 2912 B-33 2858 1,08 3100 1203 A -15 2911 1 2103 2100 1.09 3160 A -12 2941 3194 A-14 3000 1 2167 2150 3263 1263 B-37 3102 1 2241 2250 3380 A-6 3171 1 2291 2300 1.09 3458 1335 0.722 A -5 3176.00 3 fracs 2294 2300 1.09 3463 A-4 3186.00 1 2301 2300 3475 A -3 3200.00 1 2311 2300 3491 1347 A -2 3222.00 2 lams 2327 2350 3516 A -1 3226.00 2 lams 2330 2350 1.09 3520 Vitrinite Reflectance sample indicates Fast Track sample MNES = (S1 + S2 + S3/3)-pp Indicates anisotropic sample indicates multi- stress sample Assumes Biot Coefficient = 1 XRD Completed mercury injection preference II PERCUSSION SIDEWALL CORE INVENTORY Company: Anadarko Petroleum Corporation Date: 3/3/2009 firkt Well Name: Wolf Creek 4 PSWC Run #: IP Irk Field /Block: Foothills Program Technician: BLE E� County /Parish: North Slope, Alaska State /Country: Shot # Depth Lithology Rec CQI Shot # Depth Gas Units Lithology Rec CQI P -45 1552 Sand 0.5 C P44 1776 Sand 0.3 D P43 1931 Sand 0.8 B P -42 2030 Sand 0.5 B P41 2034 Sand 0.5 C P40 2038 Sand 0.6 B P -39 2043 Sand 0.4 C P -38 2045 Sand 0.7 B P -37 2051 Sand 0.8 B P -36 2053 Sand 0.7 C P -35 2058 Sand 0.5 C P -34 2060 Sand 0.8 D P -33 2067 Sand 0.8 D P -32 2072 Sand 0.4 D P -31 2074 Sand 0.6 D P -30 2076 Sand 0.7 D P -29 2078 Sand 0.6 B P -28 2082 Empty - NR P -27 2084 Empty - NR P -26 2088 Empty - NR P -25 2090 Sand 0.5 C P -24 2093 Sand 0.5 D P -23 2094 Empty - NR P -22 2096 Empty - NR P -21 2123 Shale 1 D P -20 2143 Sand vshy 0.8 D P -19 2152 Sand 0.7 C P -18 2155 Sand 1 D P -17 2470 Sand 1 D P -16 2528 Sand 0.3 D P -15 2669 Shale w/ sand 0.7 D P -14 2689 Empty - NR P -13 2800 Shale 1.1 D P -12 2817 Shale 0.9 D P -11 2821 Sand 0.5 D P -10 2823 Sand 1.2 D P -9 2833 Sand 0.6 D P -8 2878 Sand 0.3 D P -7 3050 Shale 1.2 C P -6 3097 Sand 0.2 D P -5 3102 Empty - NR P4 3104 Empty - NR P -3 3223 Sand 0.7 D P -2 3229 Sand 0.5 D P -1 3231 Empty - NR Depth: 1552 Depth: 1776 Depth: 1931 Sample: P-45 Sample: P-44 Sample: P-43 o 1 2 3 0 1 2 3 0 1 2 3 cm 11)1111pily101 ill I 1111y111 cm 11J111111fflpilly1 iji 91 cm 111)1111r11 1 11r111 Ilril 1 in I I in I I inl I I Depth: 2030 Depth: 2034 Depth: 2038 Sample: P-42 Sample: P-41 Sample: P-40 . - v • .. , t , o 1 2 0 1 2 3 0 1 2 3 cm ii ii ly1 1111 111i1 cm 11)11111111p Illly111,11 111111 cm 11P01 TIWII il up 1 in 1 I I in I I I in I I Depth: 2043 Depth: 2045 Depth: 2051 Sample: P-39 Sample: P-38 Sample: P-37 . „ .-f A , . . ,44,..., ......„.: 0 1 2 3 0 1 2 lyi 1 3 0 1 2 3 cm IIPSIVIMIVII 1111N1 cm IINII0InVilni 1,1 11,1111H1 cm liffiripN IINII t! in I in I I in Depth: 2053 Depth: 2058 Depth: 2060 Sample: P-36 Sample: P-35 Sample: P-34 .,. ..,, .„., . . 4.... 0 1 2 0 1 2 0 1 2 cm ly1111,1MT11 ly1 1 Ii1 Cm 11111111HVH III I 1111 1 cm IINII I .111 3 1 in I I in m Depth: 2067 Depth: 2072 Depth: 2074 Sample: P-33 Sample: P-32 Sample: P-31 .. . ..,, --.X.,..., . .. 7 , ,. ...,. . ... . .:\ •5 ' --,--:':-.' .• 0 1 2 4 0 1 2 3 0 1 2 cm ly11110IHIVI ly1 1 Ilr T1 cm IIMIMI1111y1 1111111111 III 1 1 ( 4 1 cril 11111 1111 11 11111 1 in in in Depth: 2076 Depth: 2078 Depth: 2090 Sample: P-30 Sample: P-29 Sample: P-25 -,-: it o 1 2 1 2 3 1 3 i II cm 11 IIINIfil101 Iy11 cr110 111111011111M1111111111 cm 0 11p1MIINT 2 111111p 11 I in in in Depth: 2093 Depth: 2123 Depth: 2143 Sample: P -24 Sample: P -21 Sample: P -20 k t 4 0 1 2 3 1 1 0 1 2 3 4 0 1 2 " Iljllll�l�ll�l4llll 11 I�1I.111 I11T1 " 11)111I�III+I�II�I 11.1411111 11 " 11 1111 fill�l 11+111 1 1IIl 1MII in Depth: 2152 Depth: 2155 Depth: 2470 Sample: P -19 Sample: P -18 Sample: P -17 0 1 2 4 0 1 2 3 4 0 1 2 th: in 11,1111�11111 Depth: 2528 Depth: 2669 Depth: 2800 Sample: P - Sample: P - Sample: P -13 9 • 0 1 2 3 4 0 1 2 3 4 0 1 2 i iii ° n Il� I1�1�11�1 IIJ14111111 I1�11INII 111)l,ll }1411�14 11�1 II 11 �11 C, 11)1111011111111111N iii Il�lyll1l�il Depth: 2817 Depth: 2821 Depth: 2823 Sample: P -12 Sample: P -11 Sample: P -10 0 1 2 3 0 4 1 2 3 4 0 1 2 3 4 ' � III .III 11111 °` r' lllllll lllllllll "' 11111111111, 11111111111 I iIlll in Iy �� y �� y I in Iy � �� �� y �� y in �� �� �� �5 �y Depth: 2833 Depth: 2878 Depth: 3050 Sample: P -9 Sample: P -8 Sample: P -7 .,- °. 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 " 1 1 ) I y 1 1 j 1 1 1 1 1 1 y 1 1 1 1 I I + I I I 1 . I l l y IITI " I l I l y l 1 p l l � l y l 1 0 1 1 y 1 I 1 p 1 1 1 � l y l l � l y l l I " ir I l l y l l � l l l l + l y 1 1 J 1 1 1 1 1 1 I I I 1 1 1 l p ll in Depth: 3097 Depth: 3223 Depth: 3229 Sample: P - Sample: P -3 Sample: P -2 • . _.. tj ly 0 1 2 3 4 0 1 2 3 0 1 2 3 " II)Iylll 1 1p ll�l II+1 111 I1 Il Il)lyll�l�ll�l 11111 Iy1 it l l l�lyll " 11N1l�l�ll�ly i Il l�ll III IIMI ylyll in Anadarko Petroleum Corporation File No.: HOU- 090207 Wolf Creek 4 Date: September 23, 2009 Foothills Program Analyst(s): BLE, JH, ALC, JLR North Slope, Alaska Cores: Rotary and Percussion rmouue stfli( Distribution of Final Reports Anadarko Petroleum Corporation 2 copies / 2 CD -ROM 1201 Lake Robbins Drive The Woodlands, TX 77380 P.O. Box 1330 (mail) Houston, TX 77251 -1330 Attn: Ms.Rebecca Isbell Petro- Canada 1 copy / 1 CD -ROM Geological Operations, Room 2358 150 -6th Avenue S.W. Calgary, Alberta T2P 3Y7 Attn: Ms. Cathy Vitale BG International Ltd. 1 copy / 1 CD -ROM 500 - 222 -3rd Calgary, AB T2P 0B4 Attn: Mr. Chris Opekar Alaska Oil & Gas Conservation Commission 1 copy / 1 CD -ROM 333 West 7 Avenue, Suite 100 Anchorage, AK 99501 Attn: Librarian Dept. of Natural Resources - Division of Oil & Gas 1 copy / 1 CD -ROM State of Alaska For Confidential Well File 550 W. 7th Avenue, Suite 800 Anchorage, AK 99501 -3510 Attn: Ms. Kristin Dirks, Geologist Dept. of Natural Resources- Division of Oil & Gas 1 copy / 1 CD -ROM State of Alaska For EIC Section 23/25 Tax Petition 550 W. 7th Avenue, Suite 800 Anchorage, AK 99501 -3510 Attn: Ms. Kristin Dirks, Geologist BLM 1 copy / 1 CD -ROM 3801 Centerpoint Drive, Suite 500 Anchorage, AK 99503 Attn: Mr. Art Banet Petrophysical Applications Intl, Inc. 1 copy / 1 CD -ROM PO Box 130304 The Woodlands, TX 77393 -0304 Attn: Dr. Robert Skopec Page 1 Final Report Distribution Appendix IV HALLIPURTON Sperry Drilling Services 1 ' END OF WELL REPORT i A11101 Petroleum Corporation Wolf Creek #4 1 C 1 Surface Data Logging Services I �o �- L/ �� V I I TABLE OF CONTENTS 1 General Information I I. 2. Daily Summary 1 3. Morning Reports 4. Bit Record I 5. Mud Reports 1 6. Show Reports 7. Survey Report I 8. Days vs Depth I 9. Data CD 10. Formation Evaluation Logs I 11. Engineering Log 9 9 I 1 HALLIBURTON I Sperry Drilling Services I I I I I I 1 1 ' GENERAL WELL INFORMATION I Company: Anadarko Petroleum Co. Rig: DOYON Arctic Fox Well: Wolf Creek #4 I Field: Exploration Borough: North Slope Borough State: Alaska I Country: United States API Number: 50- 119 - 20002 -00 Sperry -Sun Job Number: AK -AM- 0006332166 1 Spud Date: 3 Feb 2009 22:40 hrs Total Depth Date: 17 Feb, 2009 18:00 hrs Total Depth: 3250.00' MD; 3247.53' TVD 1 North Reference: True Declination: 20.281° Dip Angle: 79.766° 1 Total Field Strength: 57435 nT Date Of Magnetic Data: 04 Jan, 2009 Wellhead Coordinates N: North 69° 22' 3.93" I Wellhead Coordinates W: West 153° 20' 53.75" Cartesian Coordinates: Y= 5618548, X= 584114 NAD27 Alaska State Planes, Zone 4 I Drill Floor Elevation: 729.60' above MSL Ground Elevation: 711.60' above MSL I Section: 9 Township: 01S Range: 06W 1 SDL Engineers: Wayne Hermanson, Roman Krochuk, I Company Geologist: Al Heinrich SSDS Unit Number: 121 1 1 HALLIBURTON 1 Sperry Drilling Services 1 1 DAILY SUMMARY Anadarko Wolf Creek #4 2_ DAILY SUMMARY 3 Feb 2009 Pick up drill pipe and heavey weight drill pipe. Pick up BHA and tag ice at 70'. Work on suction lines and top drive. Clean out 16" conductor from 70' to 120'. Drill 12 -1/4" hole from 120 to 140'. 1 4 Feb 2009 Drill 12 -1/4" hole from 140' to 160'. Pull out of hole to pick up new BHA. Note: had 20' fill when going back to bottom. Drill 12 -1/4" hole from 160' to 375' while picking up 6 -1/4" drill collars. Had to shut down drilling to clean pits due to overflow cuttings auger to rock washer. Background gas values very low running at less than a unit while drilling. Drill 12 -1/4" hole from 373' to 401'. Note: some down time due to trash and rocks under pump seats. 5 Feb 2009 Work on pumps. Pull out of hole to work on pumps. Found small amounts of debris in fluid ends of pumps. Also pulled suction dampners and found bladders had failed. Check MWD tool and found 1/2 cup of dollar sized rubber and plastic ' chunks on pulsar. Run in hole. Drill 12 -1/4" hole 401' to 641'. Started seeing background gas of 5 -10 units starting at approximately 550'. 6 Feb 2009 Drill 12 -1/4" hole from 641' to 1,027'. Circulate HiVis pill. Pull out of hole to 946' where tight hole encountered. Back reamed to 885' with tight spots at 940' and 905'. The first minor gas peak of 56 units occurred between 675 to 685'. A number of gas peaks were noted between 815 to 930', ranging from 103 to 226 units. The gas peaks were associated with narrow coal stringers and sandstone zones. 7 Feb 2009 Wiper trip out of hole to 510' — back ream each stand. Run in hole to bottom with no fill. Circulate two bottoms up with ' a maximum trip gas of 12 units. Pull out of hole to 512' — unable to work through sand/clay ring, therefore ream back to 352'. Note: Found a wash between top drill collar and second drill collar. Back ream from 352' to 135'. Run in hole to 522'. Wash and ream back to bottom with 10' fill. Circulate bottoms up with maximum trip gas of 12 units. Pump sweeps and condition hole. Pull out of hole on elevators to 518'. 8 Feb 2009 Pull out of hole on elevators. Note: Second stabilizer at 37' above the bit was balled up with cuttings and clay. Rig up and run wireline logs with Schlumperger. Rig up and run 9 -5/8" casing to 505'. 9 Feb 2009 Run 9 -5/8" casing to 1011'. Circulate and condition mud while preparing outside tanks for mud storage. Run cemnt job on 9 -5/8" casing with Schlumberger. Prepare to nipple down diverter. 10 Feb 2009 Nipple down diverter. Install and test wellhead to 3000 psi. Nipple up BOP's and clean pits. 11 Feb 2009 Nipple up and test BOP'S. 12 Feb 2009 Test BOP's. Pick up 48 joints of 4" DP. Load pipe shed with new BHA tools. Trouble shoot top drive problem. 13 Feb 2009 Trouble shoot top drive problem. Run in hole open ended to circulate and heat mud up. Pull out of hole and pick up BHA. Work on top drive with Tesco hand. Finish picking up BHA. r 1 DAILY SUMMARY Anadarko Wolf Creek #4 1 14 Feb 2009 Continue to pick up 8 -3/4 BHA. Circulate to condition the mud preparing for casing test. Pulse test MWD/LWD. Test casing to 1,500 psi - OK. Drill out plugs, float collar, cement and float shoe at 1,011'. Drill new hole to 1,047', circulate bottoms up and condition mud for leak off test. Run Formation integrity test. Drill 8 -3/4 hole from 1,047' to 1260'. 1 15 Feb 2009 Continue drilling from 1,260' to 1,870'. Multiple gas peaks in 200 to 317 units range. Background gas ranged from 25 1 to 50 units through mainly tight sands. Service rig and top drive. Drill from 1,870' to 2,125'. Gas peak of 837 units at 2,072', with a background gas of 50 units. Wiper trip to shoe at 989'. Added ghost reamer in middle on top stand of HWDP. 16 Feb 2009 Run in the hole and circulate bottoms up. Drill 8 -3/4" hole from 2,125' to 2,894'. Gas peaks ranged from 100 -200 units, with a backroud gas from 10 -35 units. Most gas peaks were associated with tight sands. 17 Feb 2009 Drill 8 -3/4" hole from 2,894' to 3,165' — possible total depth. Circulate hole clean. Wiper trip, pump out to 2,071'. Decided to drill ahead to 3,250' MD. Maximum gas peaked at 489 units at 3,227', background gas 25 units. Circulate hole clean and trip out to wireline log. 18 Feb 2009 Continue P0011. Download MWD/LWD recorded data. Lay down BHA. Rig up Schlumberger E -Line. Logs as per program. 19 Feb 2009 Log with Schlumberger Wireline and test BOP's. 20 Feb 2009 Log with Schlumberger Wireline. 1 1 1 1 1 1 1 1 2 o Hsa��isui =eTOn� Customer: Anadarko Report #: 1 � Well: Wolf Creek #4 Date: 2/3/09 0:00 p Sperry Drilling Sarvicas Area: Foothills Midnight Depth 145' Pi Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 72' Rig: Doyon Arctic Fox Rig Activity: Drilling Job No.: AK -AM- 0006332166 Report For: Goerlich / Breeden Daily Cost: $4,380.00 Cumulative A* . $33,840.00 , ' 4 .4. ... k m o- n' '': J .: NJRwt' ch � , 's `.A.:" ^ ,. . z5 ' k .:` �.,:.: T' . .. h't.;:: k'� - .- {+ ,.. - 'b5 * le ..', s 's. .«.., ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr) 9.0 5.5 228.0 126 Flow in (• •m 454 SPP •si) 400 liZETEELM <1 <1 <1 N/A Fow in (s •m 159 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids 1 Depth in out (sec/qt) (cc/30 min) cP (lb/100 ' (m• /I) (1/32 ") % l I 145' 8.8 8.8 353 NC 8 35 19000 1 10.0 2.0 0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition k Bit # 1 XML1 12.25 0.65 3.25 73' N/A 72 8/15 50 -60 Last Bit # - ___ _ - -- 4 Lithology � ( %): �� Sd fife � Sst Silt !as: .4,,, Cly � �ti Clyst Sh :7,, ai Tu� ff Grvl 25 75 �� ������ � . � Co � $ "� I = Connection Gas and Mud Cut Trip gas 19 ft units ppg ft units ppg ft units ppg 111 , 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) ! MD Max Average C1 C2 C3 C4 Tot C5 Tot Type 73 to 145 1 <1 39 0 0 0 0 BG to i 1 II to to to to Illi to to to 11 i to to I to to to to I Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; ' POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas X' ''''.4 ,, ;s;. -4''' ...." .` # tt s2 1 .:.. .,., . ,,. . r- " . t ,,.,... 14 ., i ,.ass, ..., Mk iiii k " 24 hr Recap: Pick up 4" DP + HWDP and stand In derrick. Install mousehole. Fill hole and thaw mud pumps. Repair lines and top drive. Clean out conductor from 20 to 74'. Work on top drive. Clean conductor from 74' to 80'. Thaw frozen lines b /pits. Clean out 80' to 145' 1 1 :4: A Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air Si I*" tia . " 444, 3 0 , T of � A ,. .r it. �a � io ,1 f -A Customer: Anadarko Report #: 2 HALLIBURTON Well: Wolf Creek #4 Date: 2/4/09 0:00 Bparry IlDriiiing Barvicas Area: Midnight Depth 401' Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 256' Rig: Doyon Arctic Fox Rig Activity: Circulating / Fixing Iii Job No.: AK -AM- 0006332166 Report For: G. Goerlich I D. Breeden Daily Cost: $4,380.00 Cumulative: $38,220.00 ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: . R.O.P. ft/hr 0.0 34.8 197.5 209 Flow in • •m 286 SPP •si 99 <1 <1 <1 N/A Fow in s•m 100 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (m• /I) (1/32 ') % 145' 8.8 8.8 103 9.6 15 32 15000 3 9.6 2.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit# 1 XML1 12.25 0.65 10.6 73' N/A 328 8/15 50 -60 Last Bit # -- _ - - - - -- „_ . .. <" '""*" n . -.4 a 0 rt 4. 'e.;. _ M�ft u ' Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _ 80 20 --- - - - -- Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) 1 MD Max Average C1 C2 C3 C4 Tot C5 Tot Type il- 1 145 to 401 1 <1 75 0 0 0 0 BG to to i. i 111 to to to 1 12 to to to to to to , to to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 24 hr Recap: Make up drill BHA. Drill 145' to 401'. Thaw and fix frozen auger. Circulating to prevent freezing while fixing pumps. r 1 I Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air M r ,a.1P ' ' � - r '$ is rri. ..,',, ,' ".:.. . " , u s = ' Customer: Anadarko Report #: 3 HALLIBURTON Well: Wolf Creek #4 Date: 2/5/09 0:00 I Bparry Clr- iiiing sw aricas Area: Midnight Depth 641' Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 240' ti Rig: Doyon Arctic Fox Rig Activity: Drilling ahead x Job No.: AK- AM- 0006332166 Report For: G. Goerlich I D. Breeden 3; Daily Cost: $4,380.00 Cumulative: $42,600.00 v,ry 3, Y 4..a 'L a` ..�. 5Y-'. ry "x =. rr • NM: ti fl 2 k „: , ; I ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: i < R.O.P. ft/hr 0.0 42.3 185.0 501 Flow in • •m 607 SPP •si 1847 iffammaIim 8 4 24 588 Fow in s • m 213 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (m• /I) (1/32 ") % + 552 8.9 8.9 111 9.4 27 29 1000 3 9.6 3.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit # 1 XML1 12.25 0.65 16.3 73' N/A 568 15/25 150 -160 Last Bit # - __ - - - - - , " ` '! Iii "' • ,, ;= #1 : .:. ' ` ' - ' 'Il5lito L Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl —° , 65 35 -- - - - -_- ` • dam:. ' �` ,.r _ 1[+ = � ? � ;. .,. . _ .4060.---,... . li Connection Gas and Mud Cut Trip gas 1 ft units ppg if units ppg ft units ppg ;_ „ I...,... f.10111111, lit n 1111P 5 may: .. .'.t,F. _ m, ,.'` ” aw,.,. • 4's 24 hour Gas Breakdown Dept (ft) Ga (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type s 401 to 641 24 4 2110 110 62 31 11 BG to to Wil to to to : 1///',,,,,44:‘,., to to to 1 to _ to to to to to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; .4 POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 24 hr Recap: Pump pressure dropped. POOH to clean out pump suctions, inspect pumps, clean pits. RIH, drill ahead to 641'. : Logging in En ineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air 9 ,.... kb 3 5 ? .& ., Vi e,= � .= a .. ., 'h ,.,.+ a ._ •'' .v }ti p' ^• `` ' . .. i.. . _ , 4 , 1 H ALLIBUR T ON Customer: Anadarko Report #: 4 Well: Wolf Creek #4 Date: 2/6/09 0:00 f . Sparry Inriiiing sar.ae ®: Area: Mid Depth 1027 , 1 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 386' Rig: Doyon Arctic Fox Rig Activity: Circulating/Wiper Trip , Job No.: AK- AM- 0006332166 Report For: G. Goerlich / D. Breeden Daily Cost: $4,380.00 Cumulative: $51,360.00 ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: A . , R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in • •m 0 SPP •si 0 0 1 10 N/A Fow in s • m 0 Gallons /stroke 2.9 ' Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids it I Depth in out (sec/gt) (cc/30 min) cP (Ib /100ft (mg /I) (1/32 ') % 1025 8.9 8.9 75 12.2 22 32 500 2 9.5 3. It BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit # 1 XML1 12.25 0.65 31.5 73' N/A 944 15/25 150 -160 - _____ - I 1 Last Bit # Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvi _ - 35 65 ' t Connection Gas and Mud Cut Trip gas t,` ft units ppg ft units ppg ft units ppg 24 hour Gas Breakdown r x Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type 641 to 675 18 10 1299 68 12 BG ill 675 to 685 56 4393 101 55 47 tr GP a l 685 to 814 18 8 1487 80 22 13 tr BG 814 to 825 155 13664 626 32 36 tr GP 825 to 850 80 30 6419 156 130 88 tr BG 't; 850 to 861 218 17209 87 48 57 tr GP 861 to 890 50 25 4224 34 24 29 tr BG 890 to 898 103 9515 78 21 22 tr GP i tc 898 to 904 127 11486 126 26 35 tr GP 904 to 922 63 41 5491 124 139 77 tr BG to 922 to 927 226 19583 286 60 60 _ 12 GP i 1 927 to 1027 158 76 7500 132 60 58 18 BG 0 °z 1 to ' to to _ to t Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 24 hr Recap: Drill 12 1/4" hole from 641' to 1027' (casing point). Wiper trip to shoe, RIH, sweep, carbide sweep, circulating. t The first minor gas peak of 56 units occurred between 675 to 685'. A number of gas peaks were noted between 815 to 930'. $x Most were associated with narrow coal stringers and sandstone zones. Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air I ili #'. �" 1 **11:1" ' %"t! 0, x " `rte 4, ' ..; .., * , ".., ,.. t . t , L i%tea. t Customer: Anadarko Report #: 5 HALLIBLJRTON Well: Wolf Creek #4 Date: 2/7/09 0:00 Sperry =Tilling Services Area: Midnight Depth 1027 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0' Rig: Doyon Arctic Fox Rig Activity: Circulating/Wiper Trip „; Job No.: AK- AM- 0006332166 Report For: G . Goerlich / D. Breeden i Daily Cost: $4,380.00 Cumulative: $51,360.00 4 te o ' . ....... :.w .:., ;, : "'. � ,.,.. 1. >s , w . . ; , �, .�. y ea . 4 , , ...x ,:,. , , • ifs „” .;...,,, ` _ ^ • al ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in ••m 0 SPP •si 0 ED' 0 1 12 N/A Fow in s•m 0 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids t o i Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (mg /I) (1/32 ") % 1025 8.9 8.9 75 12.2 22 32 500 3 9.1 3.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit # 1 XML1 12.25 0.65 31.5 73' N/A 944 15/25 150 -160 Last Bit # - ___ - - - -- " . 4 l , ' ; Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff GrvI , Connection Gas and Mud Cut Trip . Pgas ft units ppg ft units ppg ft units ppg 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) � ` MD Max Average Cl C2 C3 C4 Tot C5 Tot Type N/A to 12 WTG to3 to to to 1 to L. to to ; 'i to to Pi to A to .. to P Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; ' POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 24 hr Recap: Performing wiper trip, sweeps, circulating. Logging Engineer: Wayne Hermanson / Roman Krochuk * . units = 100% Gas In Ar IP .,. ' ; lid} .. Customer: Anadarko Report #: i- i.o.L-1-ieur =eroni Well: Wolf Creek #4 Date: 2/8/09 0:00 Sparry Drilling Sarvioaa Area: Midnight Depth 1027 ` ' ,_; Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0' Rig: Doyon Arctic Fox Rig Activity: run 9 - 5/8" casing Job No.: AK- AM- 0006332166 Report For: G. Goerlich / D. Breeden Daily Cost: $4,380.00 Cumulative: $55,740.00 , : ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: , R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in • •m 0 SPP •si 0 , t IMMIRMII 0 0 0 N/A Fow in s•m 0 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (mg /I) (1/32 ") % 1027 8.9 8.9 70 12 22 30 500 3 9.2 3.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit # 1 XML1 12.25 0.65 31.71 73' 1027' 944' 15/25 150 -160 1- 1- WT- A- E- 1 -NO -TD Last Bit # - __ - - - - Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg 24 hour Gas Breakdown units Chromato ra h (ppm) Depth (ft) Gas (units) 9 p (pp MD Max Average C1 C2 C3 C4 Tot C5 Tot Type to to to to to to tti to - i to to to to , t0 to t0 1 Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 1 24 hr Recap: POOH. Run wireline logs. Rig up to run casing. Run 14 joins of 9 -5/8" casing Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air ry „ .»} � � ',., �:`. .� � a. ...'�z g . z 7 � *- S� �*.,"rs,,. ' M 4 -n as'',, . rail .: m" y Customer: Anadarko Report #: 7 HALLIBURTON Well: Wolf Creek #4 Date: 2/9/09 0:00 SpBrry Clriiiing S®rvicas Area: Midnight Depth 1027 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0' , Rig: Doyon Arctic Fox Rig Activity: cement job Job No.: AK -AM- 0006332166 Report For: G. Goerlich I D. Breeden Daily Cost: $4,380.00 Cumulative: $60,120.00 . .r' , .. " ice . `, >., _ .. * s'. . ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in • •m 0 SPP •si 0 0 0 0 N/A Fow in s• m 0 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (m./I) (1/32 ") % 1027 8.9 8.9 45 11.8 19 13 500 3 6.7 3.0 ".".:SiiTMgIAfYCl1E%:;.t,. tis5kt: 'T &•f01p••�OC68siR 'FX•N itGAM t , **j% :_ 'e- ".a'I Y,Wa,,. 'N••••Yept§i tm"ty" ws .'va %','°fi.„ g1tl91 k* BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition iii Bit # , Last Bit # 1 XML1 12.25 0.65 31.71 73' 1027' 944' 15/25 150 -160 1 -1 -WT A -E 1 -NO TD � �, �� ��,�t� . � , . � ' � r {7uei����aiot��... gy ( �, ) Silt s iltst Cly Clyst Sh Lst Coal Tuff Grvl _ Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg s # #T. s,+, . fi 61iiti tt.: AG'S. 't s : A'✓ ;� `' ' ( .f .4{,`;. i `, .. A!:e�' =s... �: 24 hour Gas Breakdown , " i Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type 4 Litholo to :, to to to to to to to to to to to to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas ' sit tt 7:iX.:. a rt itit :, = :5� ' iti M? -. . N 24 hr Recap: Continued running casing to TD. Circulate BU. Continued unfreezing uprights. Empty fluids from pit to prepare for cementing. Rig up cementers, pt lines, thaw frozen lines. Pump cement, bump the plug. Nipple down stack. { Logging Engineer: Wayne Hermanson / Roman Krochuk .. , * 10000 units = 100% Gas In Air 1 Customer: Anadarko Report #: 8 L_Liisium Well: Wolf Creek #4 Date: 2/10/09 0:00 Sperry =rill ling Egssr-wicpossi Area: Midnight Depth 1027 ,I. Mud logger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0' Rig: Doyon Arctic Fox Rig Activity: NU BOPE Job No.: AK-AM-0006332166 Report For: G. Goerlich ID. Breeden Daily Cost: $4,380.00 Cumulative: $64,500.00 *.t. . . . "I ROP&Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in • .m 0 SPP •si 0 lEganta5111. 0 0 0 N/A Fow in ssm 0 Gallons/stroke 2.9 _ ...„, I . ,. ... YV A* ...4"....../.0410,..., Mud Data: Depth Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids 1 in out (sec/qt) (cc/30 min) cP (Ib/100ft (m ./I) (1/32") % ,....‘ 1027 8.9 8.9 45 11.8 19 13 500 3 6.7 3.0 11 ,.,-,,„,,,..., .......... ...... ,,.., ,,,..:,.. ...... .....„. . i n BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition 4 Bit# ! Last Bit # 1 XML1 12.25 0.65 31.71 73' 1027' 944' 15/25 150-160 1-1-WT-A-E-1-NO-TD Lithology (%): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff GrvI .,! J Connection Gas and Mud Cut ft units ppg Trip gas ft units ppg ft units ppg _ _ ,,- WINIIINSM,, ars.. ,iitt, liktlitz:4 , s `:tRiE .. . b . - atZ, Ms. 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type to _ (1 to to to to to _ to to - t* to to _ to Fl to _ to i to J to _ — to _____ . 1 Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas "MM. 24 hr Recap: ND Hydril/Diverter line. NU BOPE. la ii I 1 Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air III. Customer: Anadarko Report #: 9 NALLIBURTON Well: Wolf Creek #4 Date: 2/11/09 0:00 Sps■ry Ciriiiing Services Area: Midnight Depth 1027 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0' Rig: Doyon Arctic Fox Rig Activity: BOPE testing Job No.: AK -AM- 0006332166 Report For: G. Goerlich / D. Breeden 1 Daily Cost: $4,380.00 Cumulative: $68,880.00 �14, , ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in • .m 0 SPP •si 0 0 0 0 N/A Fow in s•m 0 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec./qt) (cc/30 min) cP (Ib/100ft (mg /I) (1/32") % 1027 8.9 8.9 45 11.8 19 13 500 3 6.7 3.0 . a ..... .. SIZE rte, u .;_ss ...., ..,,,. ., , ..: BIT DATA: Type e TFA Hours Depth in / out Footage WOB RPM Condition Last Bit # 1 XML1 12.25 31.71 1 150-160 1- 1- WT- A- E- 1 -NO -TD "* <. < '"( ?; '- mow. Litholog %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl - Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg r �M, . , ' � r fir ' . ., , 24 hour Gas Breakdown ti Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type to to _ 4 to to to rA to to to _ 6. to to __ 1. ..,., to too ____ t — ,:, o to 1 to 1 Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas i 24 hr Recap: Continued NU BOPE. Test BOPE 1 t .! Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air sue. .. ifq _, .� Customer: Anadarko R eport #: 10 HALLIBU Well: Wolf Creek #4 Date: 2/12/09 0:00 Bpsrry oriiiing Barvicas Area: Midnight Depth 1027 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0' 0. Rig: Doyon Arctic Fox Rig Activity: Fixing Top Drive Job No.: AK -AM- 0006332166 Report For: G. Goerlich / D. Breeden k Daily Cost: $4,380.00 Cumulative: $73,260.00 ..r ' ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: o R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in • •m 0 SPP •si 0 o. illEara 0 0 0 N/A Fow in s•m 0 Gallons /stroke 2.9 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (m. /I) (1/32" % 1 1027 8.9 8.9 45 11.8 19 13 500 3 6.7 3.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Ill Bit # Last Bit # 1 XML1 12.25 0.65 31.71 73' 1027' 944' 15/25 150 -160 1- 1- WT- A- E- 1 -NO -TD Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl tiik Connection Gas and Mud Cut Trip gas a ft units ppg ft units ppg ft units ppg - It v i i " �� ' IF lat. N.... � - ' t '''° '`" °s. - _ �— ` eau "* Ak., . , . " loin " :uw , """,". 24 hour Gas Breakdown S Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type Sv to P ' < t to to .j to to .. to to to II to t to _ to A to ( to to t o rr Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; t. POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas A. '.'� 3'�RCx }+xe `:. ' '.�&` �'.... r.,,. r�.iFxFn 1 `.. ., � +�.. vi. �. ��t.' � :. _ „�` ” ��� ei ,.w Fk;::: %7M. � " '. °.+ x . ;� `?Tix..• ::.aa:..b.' � 4.. ..v.., �:' ' 24 hr Recap: Cleaned rig floor. Made up 48 joints of new drill pipe. Top drive broke, troubleshooting top drive. 4 Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air 4 . a , e. '...or , i s #., .; . -' '�'` o .. - - ". *z° - t" * ., . , . .. '. � Customer: Anadarko Report #: 11 �' HALLIBIJRTON Well: Wolf Creek #4 Date: 2/13/09 0:00 Bparry Chriiiing $ervicas Area: Midnight Depth 1027 9 p Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0' 0. Rig: Doyon Arctic Fox Rig Activity: MU BHA Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden Daily Cost: $4,380.00 Cumulative: $77,640.00 of . <. . " , Pit (.€.. .yam y , , = , M �,: .,w� A w.._ ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 N/A Flow in • .m 0 SPP •si 0 0 0 0 N/A Fow in s• m 0 Gallons /stroke 2.0 oi Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (mg /I) (1/32") % 1027 8.7 8.7 60 5.8 8 20 31000 2 9.2 I. , 2.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit # 2 DP 506X 8.75 0.663 Last Bit # 1 XML1 12.25 0.650 31.71 73 1027' 944' 15/25 150 -160 1- 1- WT- A- E- 1 -NO -TD i l l r . 1.4 1111 IP At ..... ,. m ' w,. "' ' , tea .l AK lit rt x ` r i Lithology (%): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _ _. ft it . x .- , - * p , "Pt ... et.. ,t '" ., ., , Connection Gas and Mud Cut Trip gas lit ft units ppg ft units ppg ft units ppg " . ,, It -, . °Ii. " ''" " ' _ ,«� . ° „ >. . Ya1 . • � -.: - -- .. lit,. (:�`b , dt" '7 # 24 hour Gas Breakdown S Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type to i to II to to to to to to to At to to to ' ' ri to 1 to iil Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; t POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas tc 24 hr Recap: Continued repairing top drive. Run in the hole to 941' and displace mud. Pull out of othe hole. Clean rig floor. Start make up BHA. it t , L ogging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = „ 100% Gas In Air ..c. ,. i x ' 4 % �` ... r ' Il s ? �..��, 'c. i. 4 � u.., "wa, .' . 'Ni. r ,,,,.. .. I*. ? l . !fik ru.+r' ,, '14fi .w . t v.;. $ . 124 It: ' .14„, �,.' ^ `# ntMk5 *yy'i , 'f "' }: .. .VY$i", ' '��R t' n � *u , 4e;,itY:. HALLI BURTON Customer: Anadarko Report #: 12 Well: Wolf Creek #4 Date: 2/14/09 0:00 8parry driiiing Sarvicas Area: Midnight Depth 1271' Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 244' II Rig: Doyon Arctic Fox Rig Activity: Drilling Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden il . Daily Cost: $4,380.00 Cumulative: $82,020.00 ii '' k ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 108.0 46.6 237.0 1089 Flow in • •m 501 SPP •si 1465 f - 60 30 345 1092 Fow in s•m 254 Gallons /stroke 2.0 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Death in out (sec/qt) (cc/30 min) cP (Ib /100ft (mg /I) (1/32 ") 1181 8.8 8.8 73 6 13 25 28000 2 9.0 2.0 col, BIT DATA: .rE.. .k. �.., Type Size TFA Hours Depth in / out Footage WOB RPM Condition T Bit# 2 DP 506X 8.75 0.663 5.25 1027' 244' -- Last Bit # 1 XML1 12.25 0.650 31.71 73' 1027' 944' 15/25 150 -160 1- 1- WT- A- E- 1 -NO -TD ik ?. ; ft VW - -Wr, ,,,Ut Ars 'a' ,,,,,,,.., ,A> '41(f‘ 1.-- .-::',...' Itia., .. Mar , fi Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _ Connection Gas and Mud Cut Trip g as ft units ppg ft units g ft uni Pp units ppg 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type 1027 to 1090 48 4 4007 74 19 7 2 BG 1111 1090 to 1095 345 33691 303 28 3 0 GP 1095 to 1160 52 30 5644 93 16 2 0 BG `.. 1162 to 1171 303 32614 343 27 7 0 GP 1171 to 1238 131 24 12944 165 21 6 1 BG 1238 to 1253 204 20060 203 22 9 2 GP Ai 1253 to 1271 136 67 12923 158 22 5 1 BG to to to i to to to 4 to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; il POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 24 hr Recap: Made up BHA. Run in the hole, circulate bottoms up, drill out to 1047'. Formation integrity test, continue drilling to 1271' ) Gas peaks are associated with formations containing coals or sands and penetrated at high ROP. ri Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% 100 /° Gas In Air 11-ronr Customer: Anadarko Report #: 13 Well: Wolf Creek #4 Date: 2/15/09 0:00 Sparry C riiiing s®rvicas Area: Midnight Depth 2125' g Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 854' Rig: Doyon Arctic Fox Rig Activity: RIH Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden , W ., Daily Cost: $4,380.00 Cumulative: $86,400.00 (, . .f . ,:timealt; - .3g - , 'mow .. '4. • 's flitili,u_.,., ; ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 58.6 233.0 1842 Flow in • .m 0 SPP •si 0 l iffeEriallin= ,, 0 93 s. , 837 2072 Fow in s • m 0 Gallons /stroke 2.0 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids rl Depth in out (sec/qt) (cc/30 min) cP (Ib/100ft (m• /I) (1/32") % i 2125 8.8 8.8 63 5.8 17 24 28000 2 9.2 6.0 . ... r',..," , G=.. s11 i. . :r.?xr ,.'.t ".: �. S 4. -i '::' . r "`, 3' +x - BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit # 2 DP 506X 8.75 0.663 19.81 1027' 1098' 8/12 100 Last Bit # 1 XML1 12.25 0.650 31.71 73 1027' 944' 15/25 150 -160 1- 1- WT- A- E- 1 -NO -TD ., . ,_., , � , NSn!* ' '"1, `; '' ','• ' ...: ' "^ :, �ki'd'. , u.,.3'..... r.; &.3;d,3; N:s . '.: `�. .._ .•• f u. =:a.. k =..: ex 3;3;3; ,3.... xa,.,,� Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _ iii 70 30 . Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type 1311 to 1320 274 27314 332 42 7 0 GP ti 1376 to 1385 293 27249 295 41 7 0 GP it,i 1457 to 1477 249 25448 397 69 15 3 GP 1521 to 1529 267 26887 467 95 21 0 GP 1572 to 1574 277 27517 480 97 10 0 GP 1609 to 1617 252 22654 370 75 27 2 GP ;. 1657 to 1670 249 25745 405 59 7 3 GP 1692 to 1702 317 N/A N/A N/A N/A N/A GP 1854 to 1860 226 23088 366 44 16 2 GP 1890 to 1896 304 29069 488 63 18 4 GP 1946 to 1952 234 23275 390 70 14 0 GP 2041 to 2058 504 56083 20 20 11 0 GP 2058 to 2064 579 64361 39 27 5 2 GP r 2064 to 2083 837 89189 32 16 5 0 GP 1271 to 2125 200 50 4305 92 12 5 0 BG ll to i Gas Type abreviations: BG - - - Background Gas; GP Gas Peak; CG Connection Gas; WTG - Wiper Trip Gas; i ' i . POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas n T r'' ,1 .1..• '. ;' : :,'x�rx,s ;t: �' 6!lNNIIllMEMOM ,a "' .. i.v. ., 24 hr Recap: Continue drilling to 2125. Wiper trip to the shoe. Add ghost reamer to BHA. RIH. el Numerous gas peaks encountered while drilling. Most of them associated with small sand /sandstone beds. Due to number of gas peaks only peaks with 200+ units of gas are addressed in this report. Background gas is shown for all interval drilled in last 24 hours. s Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air Customer: Anadarko Report #: 14 HALLIBURTON Well: Wolf Creek #4 Date: 2/16/09 0:00 Sperry CIPriiiing services Area: Midnight Depth 2894' Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 769' Rig: Doyon Arctic Fox Rig Activity: Drilling Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden Daily Cost: $4,380.00 Cumulative: $90,780.00 . ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: 4 R.O.P. ft/hr 31.5 37.6 172.0 2461 Flow in • •m 536 SPP •si 2100 vti _ 48 35 152 2380 Fow in s • m om 272 Gallons /stroke 2.0 ... .:n : Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib/100ft (m•/I) (1/32) % . 2640 8.9 8.9 62 5.6 13 25 27000 2 9.2 5.0 I a BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Bit # 2 DP 506X 8.75 0.663 40.26 1027' 1866 8/12 100 Last Bit # 1 XML1 12.25 0.650 31.71 73' 1027' 944' 15/25 150 -160 1- 1- WT- A- E- 1 -NO -TD r R °19 " Y •4011 ' s Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl . 85 10 5 ._ -T,meam,,, - 1,, . :Ay . .--,...,,,,.., " .Ns$ ' ' a*m....:A.4.,..... t" * Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg ; � o:. amt �� � 1,,Iya te . 24 hour Gas Breakdown L. Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type II 2125 to 2230 2518 14 6 2 0 BG 2230 to 2254 124 12512 42 34 12 0 GP 3 2254 to 2377 4101 57 22 7 1 BG 1 2377 to 2382 152 10469 454 277 54 18 GP' 2382 to 2527 3717 131 56 32 0 BG 2527 to 2556 126 12585 32 30 18 0 GP r 1 2556 to 2842 2115 50 10 8 0 BG 2842 to 2854 83 8050 129 52 24 0 GP 4 2854 to 2894 2830 53 25 8 0 BG to to to to tgl to ! to to 1 Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; A POG - Pumps Off Gas CRG Connection Ream Gas RG - Reaming Gas ,W ... „ 31 „ ;. :- { 111f o, . , , 24 hr Recap: RIH. Circulate bottoms up, resume drilling. All gas peaks encountered over last 24 hours did no exceed 200 units of gas. Those peaks were not associated with large sands drilled, but, mostly, with much smaller sandstone intervals. , 1 i -J Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air r. HALLIBURTON Customer: Anadarko Report #: 15 Well: Wolf Creek #4 Date: 2/17/09 0:00 Bparry Oriiiing sB. -..ieEaga Area: Midnight Depth 3250 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 356 Rig: Doyon Arctic Fox Rig Activity: Drilling Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden Daily Cost: $4,380.00 Cumulative: $95,160.00 4nr.(=;..., twwitoz= :. 'fib = "., :*,1 ' '-',..1: r/k M 3 x ... .; nag, ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 32.6 155.4 3204 Flow in • •m 0 SPP •si 0 , A 0 44 490 3227 Fow in s•m 0 Gallons /stroke 2.0 1 ; Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (mg /I) (1/321 3250 9.0 9.0 67 5.8 17 28 26000 2 9.0 5.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition ( iiii Bit # 2 DP 506X 8.75 0.663 51.15 1027' 2223' 8/24 100 Last Bit # 1 XML1 12.25 0.650 31.71 73' 1027' 944' 15/25 150 -160 1- 1- WT- A- E- 1 -NO -TD , Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _ 90 5 5 ���� ll ,$ Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg *,a 24 hour Gas Breakdown Pt Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type 2894 to 3100 71 28 2102 67 17 5 0 BG 3100 to 3145 194 16035 641 234 0 0 GP 1 3145 to 3157 75 48 4337 387 193 46 12 BG 3157 to 3164 177 N/A N/A N/A N/A N/A GP 3164 to 3214 166 27 3500 369 289 21 10 BG . 3214 to 3240 490 38750 2253 2718 735 0 GP 3240 to 3250 34 25 3565 200 121 92 0 BG 4 to to t0 to to 0 to l to t0 to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; I POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 1 24 hr Recap: Drilling to 3165'. Circulate bottoms up. Wiper trip to 2125. RIH. Continue drilling to 3250'. Circulate bottoms up, sweeps 0. POOH Due to power variations chromatograph has been running not stable, therefore chromatograph data is not available " for some intervals. Gases detected while drilling are associated with sandstone intervals. I 1 Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air :MU' 44, ` „i HALLIBIJRTON Customer: Anadarko Report #: 16 Well: Wolf Creek #4 Date: 2/18/09 0:00 Sperry Orillino Services Area: Midnight Depth 3250 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0 Rig: Doyon Arctic Fox Rig Activity: Wireline loggin Job No.: AK -AM- 0006332166 Report For: R. French I D. Breeden Daily Cost: $4,380.00 Cumulative: $99,540.00 ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 0 Flow in • •m 0 SPP •si 0 m • 0 0 0 0 Fow in s• m 0 Gallons /stroke 2.0 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib/100ft (m• /I) (1/32") I 3250 8.9 8.9 98 6.5 16 25 26000 2 8.5 5.0 �` (Nt .mow. ._• : . �,, BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition im Bit # -- _ - - - - -- Last Bit # 2 DP 506X 8.75 0.663 54.33 1027' 3250' 2223' 5/14 40 -100 1- 2- CT- SR- X- l -NO -TD .. "". ',::.: Ilk AR, , -:n ' - ,. 1., •. "VIV. • k ii. Via: , • ;. k . . :; �.. U. ' : ;:,._- •5a, ,� '?_ _ ' Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _ 90 5 -- 5 - - - -- Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg 24 hour Gas Breakdown ni Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average Cl C2 C3 C4 Tot C5 Tot Type to to t to to to to to to to to to to to to s . Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas 1 :1 1. � -.' �,._ � � ` -° $ = ;;� � �` . .� Fes' '> X 24 hr Recap: POOH, disassemble BHA. Run wireline Wireline logging. t 1 4 10 rt it Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air v : It .'} . CG: .. tA. At A. .... f... , °ut "!fix ...a .r. x ' w""' `}, .,' x . "'44 ' 44 v 44. '... . Customer: Anadarko Report #: 17 * ' - i.o.L-L-1B1.J R1-Oni Well: _ Wolf Creek #4 Date: 2/19/09 0:00 ` s Sp Oriitins Services Area: Midnight Depth 3250 Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0 Rig: Doyon Arctic Fox Rig Activity: Testing BOPE Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden ` ' ti Daily Cost: $4,380.00 Cumulative: $103,920.00 44 411 ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 0 Flow in • •m 0 SPP .si 0 '111EMENIIII 0 0 0 0 Fow in s.m 0 Gallons /stroke 2.0 : t Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (m• /I) (1/32" 3250 8.9 8.9 98 6.5 16 25 26000 2 8.5 5.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition Ni Bit # -- _ -_ - - -- t Last Bit # 2 DP 506X 8.75 0.663 54.33 1027' 3250' 2223' 5/14 40 -100 1- 2- CT- SR- X- I -NO -TD Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _t 4 90 5 �� t ������t .� _.. , ,. .,�., . rv- m • - ',v p i e - ? -r' ' �' + � � '� mo � ,�„ ,• ,, - m � om.. 5 Connection Gas and Mud Cut Trip gas ft units ppg ft units ppg ft units ppg 1. H, , � ... : - . " : ate , ' .0. ' „.x ''� ., 24 hour Gas Breakdown I lk Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type ik to :' to ik to 3 to to to 4 to to _ to to to to NI to to to to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; k ' POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas '" n '1 ..,�, ,, x . a. .,, M, , '' : . , '.'., 1 fit " a ioll 24 hr Recap: Continue to run SWS Wireline logging. Rig down SWS. Rig up and test BOPE. rit: k Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air • +R ,': V >: .. e++ 'YD 4.‘ C kk ;: .' 14 lIA, 12 - x " iV,tr •y '� . x ,'' '. '. ?T^. i" ' k:`.. 'w- . xr ... £tr.., ,:'j ."'' ;. HALLIBURTON Customer: Anadarko Report #: 18 Well: Wolf Creek #4 Date: 2/20/09 0:00 ‘ _ Bperry Cbriiiing Sarwicas Area: Midnight Depth 3250 . " Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0 Rig: Doyon Arctic Fox Rig Activity: Wireline logging Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden Daily Cost: $4,380.00 Cumulative: $108,300.00 ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: R.O.P. ft/hr 0.0 0.0 0.0 0 Flow in • .m 0 SPP •si 0 INEMIEMEMN 0 0 0 0 Fow in s.m 0 Gallons /stroke 2.0 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids # r Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (m./I) (1/32 ") 3250 y , 8.9 4.44 8.9 66 6.5 16 25 26000 2 8.5 5.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition k Bit # -- _ - - - - -- ki Last Bit # 2 DP 506X 8.75 0.663 54.33 1027' 3250' 2223' 5/14 40 -100 1-2-CT-SR-X-1-NO-TD _; ; " . ' .' sa :;.' iito . `tt , , s'' y.,.. , 4444 ._ ' 1 Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl _. 90 5 -- 5 - - - -- i,, lit. ,' ith, ;. lit, „” . ",-, :iu. t lb., : 4111 .4... .<.. ...... A., ""+ -. 44 - u,.. ■ Connection Gas and Mud Cut Trip gas ill ft units ppg ft units ppg ft units ppg :ari , x, I 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average C1 C2 C3 C4 Tot C5 Tot Type to to to to �� to to t to ' to to to ' to I to to , to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; 4 . POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas .rte V, : SI " v ':.g. raw .x.- '`` ` tic . ..;`'"'" 'Iv:, 24 hr Recap: Continue to test BOPE, Rig up SWS and Run E -Line Logs r Iti Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air itit �' ' ;. , ,� . K . 7 ;bra � ��� ; �$ � , ,>�..�., ��€ .. ,. ��'� ��, �� �`' t � x��� x.'�� Customer: Anadarko Report #: 19 HALLIBURTON Well: Wolf Creek #4 Date: 2/21/09 0:00 Sp®rry Cbriiiing Services Area: Midnight Depth 3250 P Mudlogger's Morning Report Lease: Wolf Creek Progress 24 hrs: 0 Rig: Doyon Arctic Fox Rig Activity: Wireline logging 4 . , Job No.: AK -AM- 0006332166 Report For: R. French / D. Breeden It Daily } � Cost: $4,380.00 Cumulative: $112,680.00 , , may y 44 a X AC ROP &Gas: Current 24 hr Avg 24 hr Max Max @ ft Pump & Flow Data: 0; R.O.P. ft/hr 0.0 0.0 0.0 0 Flow in • .m 0 SPP •si 0 0 0 0 0 Fow in s•m 0 Gallons /stroke 2.0 Mud Data: Density (ppg) Viscosity Filtrate PV YP Chlorides FC PH Solids P xi Depth in out (sec/qt) (cc/30 min) cP (Ib /100ft (m• /I) (1/32 ") % 3250 8.9 8.9 66 6.5 16 25 26000 2 8.5 5.0 BIT DATA: Type Size TFA Hours Depth in / out Footage WOB RPM Condition li Bit# — __ - - - - -- Last Bit # 2 DP 506X 8.75 0.663 54.33 1027' 3250' 2223' 5/14 40 -100 1- 2- CT- SR- X- I -NO -TD -. . —1 4 II III Ito lit x- ... ,G ,. °.0 4% Ilk Ara, .1 Lithology ( %): Sd Sst Silt Siltst Cly Clyst Sh Lst Coal Tuff Grvl — 90 5 -- 5 - - -- L `, , " i . ,te 166..1 , _: Ill* , Connection Gas and Mud Cut Trip gas to to ft units ppg ft units ppg ft units ppg " N - " ? alt 4 °... ' '" ' 'n xs ''' y „ 4 144 . Ala, " INC. 41I :. 1411 ''' , " 11� ‘14 Ittir alk 1 24 hour Gas Breakdown Depth (ft) Gas (units) Chromatograph (ppm) MD Max Average Cl C2 C3 C4 Tot C5 Tot Type ° to MI to to to to to k to to to to 0 to ii to to Gas Type abreviations: BG - Background Gas; GP - Gas Peak; CG - Connection Gas; WTG - Wiper Trip Gas; POG - Pumps Off Gas CRG - Connection Ream Gas RG - Reaming Gas NI 24 hr Recap: Continue run E -Log with SWS I 4 Logging Engineer: Wayne Hermanson / Roman Krochuk * 10000 units = 100% Gas In Air NE iim ow mu smi am NE N. N. mo NE I = um um INN EN No = HALLIBURTON NAME: Wolf Creek #4 LOCATION: Foothills, North Slope OPERATOR: Anadarko Petroleum Corp. AREA: Foothills CONTRACTOR: Doyon Arctic Fox STATE: Alaska Petroleum Corporation Sperry Drilling Services BIT RECORD BHA Bit Bit Bit Depth Depth Footage Bit TFA AVG WOB RPM PUMP PRESS FLOW GPM Bit Grade Remarks # # Type Size IN OUT Hours ROP (max) (max) (max) (max) 1 1 Hughes MXL -3 16.00 120 1027 907 31.50 0.670 28.8 10 -25 150 2400 620 1- 1- WT- A- E- 1 -NO -TD Spud well, POOH to pick up BHA 2 2 Hughes DP506X 8.75 1027 3250 3241 54.30 0.663 59.7 5 - 14 120 2030 540 1- 2- CT- SR- X- I -NO -TD Drill 8.75" main hole 31.52 OM - ■■r r -w OM - NM 10111 OM w lid V I OM - I IMO HALLIBURTON Casing Record Sperry Drilling Services Company: Anadarko Area Foothills - Umiat, Alaska Well Wolf Creek #1 Job No: AK -AM- 0006332166 16" Csg 120 ft MD Rig Doyon Arctic Fox Spud Date 3 Jan 2009 13 3/8" CSG Water -based Mud Record Mud Co MI -Swaco TD Date: Feb 17, 2005 Date Depth Wt Vis PV YP Gels Filt R6001R3001R2001R1001R61R3 Cake Solids WaterlOil Sd Pm pH MBT PfUMf Chlor Hard Remarks ft - MD ppg sec lb /100 lb/100W m /30m Rheometer 32nds % % % ppm(k) Ca-1-1- 3 -Feb 150 8.80 353 8 35 35/94/102 nc 51/43/39/37/36/34 1 2 /98 - 0.30 10.0 - 0.20/1.20 19.0 60 Prepare & drill 12.25" hole 4 -Feb 390 8.80 103 15 32 34/68/97 9.6 62/47/35/26/24/21 3 2 /98 tr 0.30 9.6 10.0 0.50/0.80 15.0 40 Drill 12.25" hole 5 -Feb 552 8.90 111 27 29 33/78/92 9.4 83/56/45/32/31/27 3 3 /97 0.25 _0.25 9.6 10.0 0.10/1.10 1.0 40 Trip & drill 12.25" hole 6 -Feb 1027 8.90 65 21 26 17/28/36 12.2 68/47/35/25/27/20 2 3 /97 -, tr 0.30 9.5 12.0 0.20/0.90 0.5 40 Drill 12.25" hole to 1027 7 -Feb 1027 8.90 75 22 32 20/29/38 12.2 76/54/40/33/28/25 3 3 /97 tr _0.30 9.1 12.0 0.15/1.00 0.5 40 Wiper trip & circ hole 8 -Feb 1027 8.90 70 22 30 19/28/36 12.0 74/52/38/30/26/23 3 3 /97 - tr 0.30 9.2 11.6 0.20/1.10 0.5 40 Wireline Log & run 9 5/8" csg 9 -Feb 1027 8.90 45 19 13 13/16/22 11.8 51/32127/23118/16 3 3 /97 _ tr - 6.7 12.0 - -/0.40 0.5 40 Run 9 5/8" csg & cement 10 -Feb 1027 8.90 45 19 13 13/16/22 11.8 51/32/27/23/18/16 3 3 /97 tr - 6.7 12.0 -/0.40 0.5 40 ND diverter & NU BOP's 11 -Feb 1027 8.90 45 19 13 13/16/22 12.8 _ 51/32/27/23/18/16 3 3 /97 tr - 6.7 12.0 - -/0.41 0.5 40 NU & test B0P's 12 -Feb 1027 8.90 45 19 13 13/16/22 11.8 51/32/27/23/18/16 3 3 /97 tr - 6.7 12.0 - -/0.41 0.5 40 Pick up DP & work on top driv 13 -Feb 1027 8.70 60 8 20 8/11/14 5.8 36/28/24/19/8/6 2 2 /98 _ tr 0.10 9.2 - 0.50/1.50 31.0 400 Repair top drive & trip 14 -Feb 1181 8.80 73 13 25 9/14/24 6.0 51/38/32/25/9/7 2 2 /98 tr 0.10 9.0 0.1 0.10/1.80 28.0 1200 Drill cmt & new hole 15 -Feb 2126 8.80 63 17 24 8/14/19 5.8 58/41/36/26/8/6 2 6 1/93 tr 0.10 9.2 3.0 0.50/1.60 28.0 1200 Drill 8.75' hole 16 -Feb 2640 8.90 62 13 25 8/13/20 5.6 51/38/32/24/9/7 2 5 1/94 tr _ 0.15 9.2 2.0 0.50/1.40 27.0 1200 Drill 8.75' hole 17 -Feb 3250 9.00 67 17 ' 28 8/12/14 5.8 62/45/37/27/8/6 2 5 0/95 tr 0.30 9.0 4.0 0.10/1.60 26.0 20 Drill 8.75' hole to TD at 3250' 18 -Feb 3250 8.85 98 16 25 9/13/15 6.5 57/41/35/26/9/7 2 5 0/95 tr 0.15 8.5 3.8 0.50/1.80 26.0 40 POOH. Wireline Log 19 -Feb 3250 8.90 66 16 25 9/13/15 6.5 57/41/35/26/9/7 2 5 0/95 tr 0.15 8.5 3.8 0.50/1.80 26.0 40 Log and test BOP's 20 -Feb 3250 8.90 66 16 25 9/13/15 6.5 57/41/35/26/9/7 2 5 0/95 tr 0.15 8.5 3.8 0.50/1.80 26.0 40 Wireline Log I I sperry-sun Well Name: Wolf Creek #4 Depth (MD) 1318 to 1525 ft Location: Brooks Range Foothills (TVD) 1318 to 1525 ft DRILLING SERVICES I Show Report Operator Anadarko Show Report No Report Prepared By: Wayne Hermanson/Roman Krochuk 1 Date/Time: 02/15/09 - 24:00 Report Delivered To: John Kamm/AI Heinrich . ... I Interpretation: Chromatograph gas in air analysis from gas trap at possum belly. • MI .: '.. ! . : 1:. ! . I N: J: n —, 1% _,.. Hydrocarbon Ratios Depth 1318 ft Gas 1 Units 274 Mud Chlorides (1000's) 28 Cl Cl Cl C1 IN I !!!! Flowline Background PPm ppm Show C5 PPm Hydrocarbon Ratios C2 C3 C4 :.: 1000.0 NI Cl 27314 - 2402 = 24912 C1/C2 = 89.9 .: I C2 II II1 C3 332 - 42 - 55 = 11 = 277 C1/C3 = 803.6 31 C1/C4 = 3558.9 ,1.$ C4 7 - 0 = 7 C1/C5 = #DIV/0! NPH C5 0 1 Production - 0 = 0 ' Analysis CI Gas l oll I Water • Non-Producible Hydrocarbons 100.0 ..----' "" ' ". .... -- .- - - El lob -- I Depth 1380 ft Gas EUnits 293 Mud Chlorides (1000's) . 28 i Depth Flowline Background PPm PPm Show -- - PPm Gas ----------- Hydrocarbon Ratios 10.0 -- 27249 1988 = 25261 C1/C2 104.0 I 295 - 52 = 9 = 243 01/03 789.4 MI C3 41 - 32 C1/C4 8420.3 Oil III C4 7 4 = 3 01/05 #DIV/0! - . l Production 1.0 N Analysis 0 0 = 0 0 Gas I Oil II Water EINon-Producible Hydrocarbons NPH 1% Hydrocarbon Ratios I n ,...... Depth 1472 ft Gas 1 Units 249 Mud Chlorides (1000's) Flowline Background Show 28 Cl Cl C2 C3 Cl Cl C4 C5 .., PPm PPm PPm III: Hydrocarbon Ratios 1000.0 I ::: :::: Cl 1 11 1 : 1 1 C2 25448 - 397 - 4032 = 96 = 21416 C1/C2 = 71.1 301 C1/C3 = 419.9 :IP C3 69 - 18 = 51 Cl/c4= 1784.7 NPH IY! C4 15 - 3 = 12 C1/C5 = 7139 I C5 ..i. Production 3 - 0 = 3 100.0 -- - ----. - ... _ ... . Analysis Il Gas • Oil I Water i Non-Producible Hydrocarbons _ -- - 1% I P..........,.......1:::...,...i Depth 1525 ft Gas MUnits 267 Mud Chlorides (1000's) 28 Gas Flowline Background Show - -.. ..........:•• ---------- ..!....'. PPm PPm PPm .:.: „:. Hydrocarbon Ratios 10.0 I •... Ili Cl 1 i 1 i C2 26887 - 467 - 3900 = 92 = 22987 01/02 = 61.3 375 C1/03 = 280.3 Oil lig C3 95 - 13 = 82 01/04 = 1641.9 I 10! C4 II 05 1 - 21 - 7 = 1 = 14 C1/C5 = *DIV/0! 0 NPH ------------- iii: Production 1.0 p Analysis I Gas I Oil I Water I Non-Producible Hydrocarbons I I I :::::::::7::::f7.1!..,':'1.1'r'',.: 1 ill sperry-sun Well Name: Wolf Creek #4 ...... Location: Brooks Range Foothills (TVD) 1576 to 1864 ft •• VI: DRILLING SERVICES Show Report No. 2 Mil I Show Report Operator: Anadarko Report Prepared By Wayne Hermanson/Roman Krochuk Date/Time: 02/15/09 - 00:00 — :•::: Report Delivered To John Kamm/AI Heinrich ,..• ..•• ..•. I ..•..• ..•..• Interpretation: Chromatograph gas in air analysis from gas trap at possum belly. ... Cl ..••.:..". I .. 1 % Hydrocarbon Ratios I Depth 1576 ft Gas Units 277 Mud Chlorides (1000's) 28 Cl Cl Cl 1111 Il • • • I I I Flowline Background ppm ppm Show PPm C2 C3 C4 C5 Hydrocarbon Ratios 1000.0 27517 - 4466 = 23051 C1/C2 = 62.1 Hil Cl ,,•:. I C2 lill C3 480 - 97 - 109 = 29 = 371 C1/C3 = 339.0 68 C1/C4 = 4610.2 f• C4 10 - 5 = 5 C1/C5 = #DIV/0! NPH .::. iill C5 .'} ■ I 1 I i Production .... -- ......".. 2 0 - 0 = 0 100.0 "" MI Analysis Gas noil Water fl Non-Producible Hydrocarbons -- Fir - ----"- -- - - - - - ..' , I .... Depth 1613 ft Gas Units 252 Mud Chlorides (1000's) 28 H .., ..•.• ..•..• MI Flowline Background ppm ppm Show -- - ppm Gas .. ----------- Hydrocarbon Ratios 10.0 - - I .., .., ..•.•• 1:11 Cl 22654 - 5567 = 17087 C1/C2 = 68.9 IM C2 V: 370 - 75 - 122 = 248 C1/03 = 406.8 C3 33 = 42 C1/C4 = 813.7 Oil :. ki! C4 27 - 6 = 21 C1/C5 = #DIV/0! - . I li C5 2 2 0 NPH 1.0 :: i 1 : 1 : 1 1 Production , = 1111 Analysis nGas n Oil nWater nNon-Producible Hydrocarbons .,, ... I I : 1 1 1 1 E 1 _ - .,_ Hydrocarbon Ratios ., I !III Depth 1661 ft Gas x Units 249 Mud Chlorides (1000's) 28 Cl Cl Cl Cl — ..::. Flowline Background Show 02 03 04 C5 .' , MI ppm ppm ppm -1 • :III Hydrocarbon Ratios .., C1 25745 - 4187 = 21558 1000.0 I 02 402 - 97 = C1/C2 = 70.7 305 01/03 = 525.8 ■• 03 59 - 18 = 41 C1/C4 = 3079.7 NPH Ill 04 7 - 0 = 7 C1/C5 = 7186 ..: I 1C3 ioduction 3 - 0 = 3 41 H % :i. il . Analysis nGas f oil n Water n Non-Producible Hydrocarbons _ - - I . . . . Depth 1865 ft Gas Units 226 Mud Chlorides (1000's) Flowline Background Show 28 Gas - - - - .. - - - ' ... :.; ill ppm ppm ppm - ---- - $t: .. • Hydrocarbon Ratios 10.0 • : 1,! I C1 lill C2 23088 - 366 - 6356 = 125 = 16732 01/02 = 69.4 241 C1/03 = 669.3 Oil ,. li, 1 1 1 1 03 44 - 19 = 25 01/04 = 2091.5 ... 04 16 - 8 = 8 01/05 = 8366 I i I III: 05 'II NI Production 2 - 0 = 2 — NPH ---------------- , n'. 1.0 ' ., I! il Analysis I Gas I Oil . Water 12 Non-Producible Hydrocarbons I I I rpousiiii: ,p $110111111101111111.Akopliwswisionpompill room .4311.111111Sigroollionii:4:4 ,11111111141111111111AMIRNAMMINIIIMPW.Y.INNUM.14;1 I 1 s perry-sun Well Name: Wolf Creek/A Depth (MD) 1892 to 2072 ft Location: Brooks Range Foothills (TVD) 1891 to 2071 ft ,Illt DRILLING SERVICES Operator: Anadarko Show Report No. 3 I Show Report Report Prepared By: Wayne Hermanson/Roman Krochuk Date/Time: 02/15/09 - 00:00 — Report Delivered To: John Kamm/AI Heinrich 01 NI 4 I 1 '........................., Interpretation: Chromatograph gas in air analysis from gas trap at possum belly. 1' .... I .. ... 113 1% Hydrocarbon Ratios 0 IIII Depth 1892 ft Gas 1 Units 304 Mud Chlorides (1000's) 28 Cl Cl Cl Cl .... I I Al Flowline Background PPm ppm Show PPm C2 C3 C4 C5 Ti Hydrocarbon Ratios 1000.0 Cl 29069 - 5549 = 23520 C1/C2 = 64.1 I C2 488 - 121 = 367 C1/C3 = 560.0 94 C3 63 - 21 = 42 C1/C4 = 1306.7 . , 4 C4 18 - 0 = 18 C1/C5 = 5880 NPH .9i C5 4 0 4 I :A 411 Production - = -. —....... ' .". .- -- • ,91 Analysis I Gas • Oil I Water I Non-Producible Hydrocarbons 100.0 --- ......... — — — - in 1% ... .. I Depth 1949 ft Gas El Units 234 Mud Chlorides (1000's) 28 Flowline Background Show Gas ppm ppm ppm ------------ - Hydrocarbon Ratios 10.0 - 1 Cl C 23275 - 3566 = 19709 C1/C2 = 66.1 ° 1 C2 :.,: C3 390 - 92 = 23 = 298 C1/C3 = 419.3 70 - 47 C1/C4 = 1407.8 011 j C4 14 - 0 = 14 C1/C5 = *DIV/0! I V C5 J4 t 1 Production .91! 0 - 0 = 0 -rd = NPH Analysis U Gas • Oil II Water I Non-Producible Hydrocarbons 1.0 OEN • % Hydrocarbon Ratios I Depth 2061 ft Gas 0 Units 579 Mud Chlorides (1000's) 28 i Cl Cl Cl Flowline Background Show C2 C3 C4 Cl C5 1 1 PPm PPm PPm Hydrocarbon Ratios : 1000.0 I Cl 64361 - 6141 = 58220 C1/C2 = ###### 911 C2 IN .,. 39 - 38 = 1 C1/C3 = 6468.9 I C3 27 - 18 = 9 C1/C4 = Ill//NH NPH !li C4 5 - 0 = 5 C1/C5 = 29110 I gl C5 iv 2- 0= 2 Production 100.0 -_-.1----- — 1- - ..... — ' _____ Analysis I Gas • Oil I Water la Non-Producible Hydrocarbons — — -- 11:1 1% I Depth 2072 ft Gas el Units 837 Mud Chlorides (1000's) , 28 Gas -- .. .. ... .. Flowline Background Show — _ 1 , — lilt PPm PPm PPm Hydrocarbon Ratios 10.0 I Cl 89189 - 10450 = 78739 C1/C2 = 78739 0 C2 32 - 31 = 1 C1/C3 = 26246 3 Oil , i C3 16 - 13 = 3 C1/C4 = 157478 I .4 C4 105 0 - Production 5 - 0 = 0 = 5 C1/C5 = *Diviol 0 NPH 1.0 It Analysis la Gas II Oil I Water I Non-Producible Hydrocarbons .4 '130010:14,M9.021Magil9N,X10,111A,M31110,00410MMICLi1100.011,RRISIZIOraTalniggiatiggri ....,.. Idgasilm:, lihimil!tiliol I 1 ................................................................................................................................................................................„.................—..-- ------------------------------------------------------- """""""""""""""""""--"••"••••"-----""""""""""""""""""'"'""-----------""""- i 1 1 i 1 sperry-su n Well Name: Wolf Creek #4 Depth (MD) 3102 to 3224 ft :III hi Location: A Brooks n adar Anadarko n g e Foothills (TVD) 3091 to 3223 ft I 11 DRILLING SERVICES Operator 1 Show Report Date/Time: 1111 Report Prepared By: Wayne Hermanson/Roman Krochuk Show Report No. 4 *I 02/17/09 - 00:00 Report Delivered To: John Kamm/AI Heinrich 1 1111 Interpretation: Chromatograph gas in air analysis from gas trap at possum belly. I% Hydrocarbon Ratios 1111 Depth 3102 ft Gas MUnits 180 Mud Chlorides (1000's) 28 01 01 01 01 Hil I line Background Show C2 C3 C4 C5 i' 1:1 Flow PPm PPm PPm Hydrocarbon Ratios Ill: 1000.0 -- rril C1 16035 - 2102 = 13933 C1iC2 = 24.3 I C2 C3 641 - 234 - 67 = 17 = 574 01/03 = 64.2 217 C1/C4 = — C4 0 - 0 = 0 C1/C5 = NPH C5 0 - 0 = 0 .......... • , I Production qi4 100.0 - _... -. ' Analysis 1 Gas 1 Oil II Water • Non-Producible Hydrocarbons ,.._.....voa;•••••0040 -----' .. I Depth ft Gas El Units Mud Chlorides (1000s): 28 Flowline Background PPm ppm Show - PPm Gas ------------- Hydrocarbon Ratios 10.0 - - C1 - = 0 01/02= I C2 - = 0 C1/C3 = :11 C3 - = -- 0 C1/C4 = 011 ., : C4 - = 0 C1/C5= . • _ II :.11 C5 - = 0 Production 1.0 Analysis • Gas • Oil • Water N Non-Producible Hydrocarbons NPH i , NjEI I% Hydrocarbon Ratios I ' 111 Depth 3224 ft Gas el Units 490 Mud Chlorides (1000's) 28 Flowline Background Show C1 C2 01 01 C3 C4 C1 C5 PPm ppm ppm Hydrocarbon Ratios 1000.0 I Cl 38750 - 3500 = 35250 01/C2 = 18.7 C2 2253 - 369 = 1884 01/03 = 14.5 C3 2718 - 289 = 2429 C1/C4 = 49.4 NPH il C4 735 - 21 = 714 C1/C5 = I i: ! C5 it 1- 0- 0= 0 ••• ..e . .... •••• Production 100.0 _._,,, •••• ..€ Analysis 1 Gas 1011 1 Water • Non-Producible Hydrocarbons - .... ;II (11 ! ' iiil Flowline Backgr ftG % I Depth G as ', 28 s Units 837 Mud Chlorides 1000s ll Show ( ) Gas _ _ .... _ -. -.• PPm PPm ppm - - - I Hydrocarbon Ratios 10.0 C1 - = 0 1 = 0 C1/C2 = 02 - 0 C1/C3 = Oil C3 - = 0 C1/C4 = I C4 - - = 0 C1/C5 = C5 0 NPH --------------- 4 1 - — -' Production 0 Analysis • Gas • Oil • Water 1 Non-Producible Hydrocarbons .,) 1 1 I Sperry Drilling Services I "7-SITE DIRECTIONAL SURVEY REPORT Anadarko Petroleum Corporation Wolf Creek #4 I Exploration North Slope Borough Alaska United States AK-MW-000633216 I Measured Vertical Vertical Depth Inclination Direction Depth Latitude Departure Section Dogleg (feet) (degrees) (degrees) (feet) (feet) (feet) (feet) (deg/100ft) 1 0.00 0.00 0.00 0.00 0.00 N 0.00 E 0.00 TIE -IN 121.13 0.85 191.25 121.13 0.88 S 0.18 W -0.88 0.70 247.45 1.31 191.25 247.42 3.22 S 0.64 W -3.22 0.37 369.94 1.31 196.13 369.88 5.93 S 1.30 W -5.93 0.09 I 495.75 1.30 199.88 495.66 8.65 S 2.18 W 8.65 0.07 621.27 1.33 204.38 621.15 11.31 S 3.27 W -11.31 0.09 743.42 1.45 207.77 743.26 13.97 S 4.57 W -13.97 0.12 866.34 1.56 209.46 866.14 16.80 S 6.12 W -16.80 0.09 988.37 1.64 215.26 988.12 19.67 S 7.94 W -19.67 0.15 1007.10 1.56 216.48 1006.84 20.10 S 8.25 W -20.10 0.46 1107.99 1.73 222.58 1107.69 22.32 S 10.10 W -22.32 0.24 0.03 I 1235.33 1.76 223.63 1234.97 25.16 S 12.75 W -25.16 1362.69 1.79 233.28 1362.27 27.76 S 15.69 W 27.76 0.24 1489.33 1.93 233.46 1488.84 30.22 S 19.00 W -30.22 0.11 1617.55 1.84 240.25 1616.99 32.53 S 22.52 W -32.53 0.19 I 1745.37 2.02 243.35 1744.74 34.55 S 26.31 W -34.55 0.16 1871.78 2.18 250.87 1871.07 36.34 S 30.58 W -36.34 0.25 1999.86 2.49 247.51 1999.04 38.20 S 35.45 W -38.20 0.26 2134.91 2.54 251.11 2133.96 40.29 S 41.00 W -40.29 0.12 I 2261.75 2.52 247.36 2260.68 42.28 S 46.24 W -42.28 0.13 2388.37 2.80 245.63 2387.16 44.63 S 51.62 W -44.63 0.23 2516.03 3.01 247.60 2514.66 47.19 S 57.56 W -47.19 0.19 I 2643.55 3.05 249.37 2642.00 49.66 S 63.84 W -49.66 0.08 2770.77 3.02 249.85 2769.04 52.01 S 70.15 W -52.01 0.04 2898.85 3.19 251.71 2896.93 54.29 S 76.70 W -54.29 0.16 I 3026.46 3.15 251.85 3024.35 56.50 S 83.41 W -56.50 0.03 3152.80 3.24 250.91 3150.49 58.75 S 90.09 W -58.75 0.08 3.24 252.27 3185.14 59.37 S 91.95 W -59.37 0.22 3250.00 3.24 252.27 3247.53 60.45 S 95.32 W -60.45 0.00 I CALCULATION BASED ON MINIMUM CURVATURE METHOD SURVEY COORDINATES RELATIVE TO WELL SYSTEM REFERENCE POINT I TVD VALUES GIVEN RELATIVE TO DRILLING MEASUREMENT POINT VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION IS COMPUTED ALONG A DIRECTION OF 0.00 DEGREES (TRUE) A TOTAL CORRECTION OF 20.28 DEG FROM MAGNETIC NORTH TO TRUE NORTH HAS BEEN APPLIED HORIZONTAL DISPLACEMENT IS RELATIVE TO THE WELL HEAD. I HORIZONTAL DISPLACEMENT(CLOSURE) AT 3250.00 FEET IS 112.87 FEET ALONG 237.62 DEGREES (TRUE) Date Printed:21 February 2009 I I I t Anadarko Wolf Creek #4 1 Days vs Depth I I I Anadairkp Petroleum Corporation I 500 Drill 12 1/1" Hole to 4027 I Set 9 -5/8" C asing 1000 A - ' 1500 .0 Q 1 CI) II L N 2000 2 5 D ill 8 /4" hole to 3250 2500 I 3000 E -Line 1 I 3500 – — — — 0 5 10 15 20 25 30 Rig Days I
