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Home My WebLink About206-167 • • ./#/#\>, Brooks Range Petroleum Corporation May 9, 2011 RE` Mr. Daniel Seamount, Chair c :F(ii ��rti�ssran Alaska Oil and Gas Conservation Commission 333 West 7 Ave., Suite 100' "''" 'x} �, �� Anchorage, Alaska 99501 r #bv r RE: Well Completion Report Brooks Range Petroleum Corporation: Sak River #1 (PTD 206 -167) Dear Commissioner Seamount, Brooks Range Petroleum Corporation hereby submits its Well Completion Report for the work performed in drilling its Sak River #1 exploration well on the North Slope. Please find enclosed the following information for your files: 1) Form 10 -407 Well Completion or Re- completion Report 2) Well As -Built Survey 3) Wellbore Schematic 4) Well Operations Summary ` Copies of the mud log and all LWD, MWD and wireline logs run were submitted earlier under separate cover. If you have any questions or require additional information, please contact me at 907- 339 -9965 or N. Sachivichik at 907 -575 -7156. Sincerely, BR99KS RANGE PETROLEUM CORPORATION ' J t 'f"a'Y/ Bart A - Id VP - Operations enclosures cc: Jim Winegarner — Brooks Range Natasha Sachivichik - SolstenXP STATE OF ALASKA • ALASKA AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG FALSE Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned El Suspended El 1b. Well Class: 20AAC 25.105 20AAC 25.110 Development ❑ Exploratory El GINJ❑ WINJ ❑ WAG ❑ WDSPL ❑ No. of Completions: Service ❑ Stratigraphic Test ❑ 2. Operator Name: 5. Date Comp., Susp., or 12. Permit to Drill Number: Brooks Range Petroleum Corporation Aband.: 1/29/2010 206 - 167 3. Address: 6. Date Spudded: 13. API Number: 510 L Street, Suite 601, Anchorage, AK 99501 3/16/2007 50 - 029 - 23336 - 00 - 00 4a. Location of Well (Governmental Section): 7. Date TD Reached: 14. Well Name and Number: Surface: 1951' FNL, 1625' FEL, Sec 1, T12N, R12E, UM 4/4/2007 Sak River - Top of Productive Horizon: 8. KB (ft above MSL): 49 15. Field /Pool(s): 1237' FSL, 1174' FWL, Sec 36, T13N, R12E, UM GL (ft above MSL): 19 Total Depth: 9. Plug Back Depth(MD +TVD): Exploratory 1198/ FSL, 1177' FWL, Sec 36, T13N, R12E, UM 4025'MD/3467' TVD 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD + TVD): 16. Property Designation: Surface: x - 626647 y - 6006061 Zone 4 13110'MD/11348'TVD ADL 390431 TPI: x 630453.17 y 6009314.59 Zone 4 11. SSSV Depth (MD + TVD): 17. Land Use Permit: Total Depth: x - 630455.44 y - 6009273.68 Zone 4 None LAS 24983 18. Directional Survey: Yes ❑ No Q 19. Water Depth, if Offshore: 20. Thickness of Permafrost MD/TVD: (Submit electronic and printed information per 20 AAC 25.050) N/A (ft MSL) 2048' MD/ 1877 TVD 21. Logs Obtained (List all logs here and submit electronic and printed information per 20AAC25.071): 22.Re- drill /Lateral Top Window MD/TVD: Submitted earlier N/A 23. CASING, LINER AND CEMENTING RECORD WT. PER SETTING DEPTH MD SETTING DEPTH TVD AMOUNT CASING FT GRADE TOP BOTTOM TOP BOTTOM HOLE SIZE CEMENTING RECORD PULLED 16" N/A N/A 0' 107' 0' 107' 24" 140 cf Arctic set 0 9 -5/8" 40# L -80 0' 4,025' 0' 3,476' 12.25" Cemented to surface w 569 0 sx of ASL lead and 253 sx of 24. Open to production or injection? Yes ❑ No IN If Yes, list each 25. TUBING RECORD interval open (MD +TVD of Top & Bottom; Perforation Size and Number): SIZE DEPTH SET (MD) PACKER SET (MD/TVD) 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED 27. PRODUCTION TEST Date First Production: Method of Operation (Flowing, gas lift, etc.): Date of Test: Hours Tested: Production for Oil -Bbl: Gas -MCF: Water -Bbl: Choke Size: Gas -Oil Ratio: Test Period =...► Flow Tubing Casing Press: Calculated Oil -Bbl: Gas -MCF: Water -Bbl: Oil Gravity - API (corr): Press. 24 -Hour Rate .■► 28. CORE DATA Conventional Core(s) Acquired? Yes ❑ No ❑ Sidewall Cores Acquired? Yes ❑ No ❑ If Yes to either question, list formations and intervals cored (MD +TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 25.071. RECEIVED RE MAY 10j,\ Aka OI & IIA. Cans. WrrlirnISSWII Form 10 -407 Revised 12/2009 CONTINUED ON REVERSE A1;ht?I•itg8 Submit or'ginal only 9J�- J r4 -�o -1( "717,4 • • • 29. GEOLOGIC MARKERS (List all formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Well tested? Likes [ . }Jo If yes, list intervals and formations tested, Permafrost - Top 512 -469 briefly summarizing test results. Attach separate sheets to this form, if Permafrost - Base 2048 -1877 needed, and submit detailed test information per 20 AAC 25.071. Colville Group 2878 -2529 Ugnu C 4420 -3731 K -15 4940 -4150 West Sak D 7224 -5980 West Sak Base 7895 -6511 HRZ 9895 -8176 Kalubik 10027 -8305 K -1 10101 -8378 Kuparuk R Fm 10183 -8459 Kuparuk C 10187 -8462 C -1 10444 -8719 C -1 sand 10516 -8791 LCU 10564 -8839 Miluveach Fm 10833 -9107 Base Cretaceous Unc. 11631 -9902 J -4 11701 -9970 J -1 12445 -10667 Sag 12754 -10962 Shublik Fm 12845 -11050 Ivishak Ss 12945 -11146 TD 13110 -11306 31. List of Attachments: Well schematic, AS- built, Operations report 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: N.Sachivichik 575 -7156 Printed Name: Bart Armfield Title: VP- Operations Signature: +�• i � � 3,��J 1 / /hon 1-907-339-9965 Date: INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10 -407 well completion report and 10 -404 well sundry report when the downhole well design is changed. Item 1 b: Classification of Service wells: Gas Injection, Water Injection, Water - Alternating -Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI (Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevations in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50- 029 - 20123- 00 -00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut -in, or Other (explain). Item 28: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10 -407 Revised 12/2009 SUBMISSION DATE: 01 -26 -10 SCALE: 1" = 2001 SHEET: 1 OF 1 1 "11 otsawlloa 1" f 4"C""3" IM I . NOTES: THIS Barrow PROJECT BEAUFORT SEA 1) DATA SHOWN HEREON, BASED UPON FIELD OBSERVATIONS CONDUCTED JANUARY 4, 2007 AND JANUARY 15, 2010 2) ALL DISTANCES, COORDINATES AND ELEVATIONS ARE IN U.S. SURVEY t - , Kaktovik • • FEET • 3) PROTRACTED SECTION LINES SHOWN HEREON ARE CALCULATED FROM Nuigsut Deadhorse UNITED STATES RECTANGULAR SURVEY RECORDS AND ARE APROXIMATE - , 4) ELEVATIONS SHOWN HEREON BASED UPON ALASKA GEOID 06 (NAVD 88) . ! 4 5) NAD 83 VALUES SHOWN HEREON DERIVED FROM CORPSCON 6.0 ll { t t • i ,RGV , , . e t._ • . .,......................,. C . an Ukpeagvik inupiat Corporation Company VICINITY MAP - NOT TO SCALE AS-BUILT DRAWING LEGEND OF SAK RIVER PAD ® SAK RIVER WELL T 13 N, R 12 E, UM SECTION 35 T 12 N, R 12 E, UM SECTION 1 CONDUCTOR o LOCATED WITHIN Z T. 12 N., R. 12 E., U.M., G 100 200 SECTION 1 NAD 27, ZONE 4 rn 1, 755 E N t . E IN FEE 200' LAT: 70 °25'29.487" N - LONG: 148 °58'04.733" W J>e N = 6,006,061.0 No to ! E = 626,647.0 11 1 4 1..— w NAD 83, ZONE 4 1 \ N = 6,005,814.7 E = 1,766,680.3 PAD ELEV = 19.0' s n 2 -o �� \' 1 %"'W \` Z.) 1625' �— OF Akg`lt IA N 1.1 N l , *: 49 TH r\ ..* t • z U fr,R w w g °� , � . KENNETH J. PINARD : j • 3 N �t Q N 11545 � o $J Q � / ix w k 1 ROfESSIOIM.v* + 35' z l A 1, Nx ∎1 � - a cV SURVEYO CERTIFlGATE CO " r CO n I-- I HEREBY CERTIFY THAT 1 ANI PROPERLY REGISTERED MC LICENSED TO PRACTICE LAND SURVEYING IN THE STATE OF ALASKA AND THAT °o O NORTH DIRECT SUPERVIS REPRESENTS SUPERVISION � THATT AU. SURVEY ME OR UNDER NSIiONS ANDD OTHER DETAILS ETTAILS i SHORE PAD ARE CORRECT AS OF JANUARY 21, 2010 N o0 AS -BUILT DRAWING OF . o _ SAK RIVER PAD J 3 LD z i TOWNSHIP 12 NORTH. RANGE 12 EAST, UMIAT MERIDIAN, ALASKA a BROOKS RANGE PETROLEUM DRAWN BY: KHE I CHECKED BY: KJP f W.O. No: 2007 -217 • • 7 1\7 " ele\ Y " \ Brooks Range Petroleum Corporation SAK RIVER #1 As P&A -ed (20111 16" conductor set @ 107' v ✓' MD/TVD se V V .i 10.6 ppg . mud V .i se se se se V se 3 se 9 -5/8 ", 40 #, L -80, BTC surf csg TOC at 4,025' MD / 3,467' TVD y set at 4,025' MD, 3,467' TVD ..e■es!•e BOC at 4,225' MD / 3,669' TVD 10.6 ppg mud TOC at 10,251' MD /8,569' TVD -�► BOC at 10,850' MD/9,168' TVD 10.6 ppg mud TOC at 12,700' MD /10,953' TVD ► ��,� vMC!M��M R!C!C!CvC!Cv BOC at TD ` * �•" L • G TD @ 13,110' MD / 11,348' TVD ns 05/09/2011 • • f s>" ) ,"Y \ Brooks Range Petroleum Corporation May 6, 2011 Summary Report of operations Brooks Range Petroleum Corp.: Sak River #1 (PTD # 206 -167) March 11, 2007 Accepted rig at previous Operator's drilling location. Haul camp to Sak R. location. Separate rig components and prepare subbase for road travel. Move pump module, pit module and motor unit to Sak R. location. March 12, 2007 Move subbase /derrick and pipe sheds to Sak R. location. Prepare shops for move. March 13, 2007 Set subbase /derrick over conductor and spot remaining rig components. R/U power and electrical connections. March 14, 2007 Haul shop and satellite camp to location and set in place. Set fuel tank. Install wellhead on conductor. Fire up heaters on pipe shed. N/U diverter. Take on mud into pits. March 15, 2007 Finish N/U diverter. Take on additional mud. P/U and S/B DP and HWDP. Set mouse hole, R/U pipe skate rails, prepare top drive. March 16, 2007 P/U and S/B 3,595' of DP, HWDP and BHA. Function test diverter and pressure test surface lines to 3,500 psi. Fill hole, tag btm at 104', drill 12 -1/4" hole to 311'. Pull into conductor, M/U and test MWD. M/U 8" DC's. RIH, drill 12 -1/4" hole to 340'. Flowline packed off w/ gravel. Clear flowline. March 17, 2007 Drill 12 -1/4" hole 340' to 394'. Flowline packed off. Clean out flowline, circ to even up mud system properties. RIH, drill 394' to 556'. March 18, 2007 Directionally drill 12 -1/4" hole 556' — 2,431'. • . March 19, 2007 Directionally drill 12 -1/4" hole 2,431' — 4,036'. CBU and POH. Back -ream through tight spot 2,100' — 2,054'. Continue POH 2,054' to 1,298' March 20, 2007 Continue POH 1,298' — 306' (wet). RIH to 3,944'. MAD pass 3,944' — 4,036'. CBU, monitor well (static) and POH. Download and L/D BHA. Make dummy run with casing hgr and landing joint to wellhead. R/U to run casing. Run 9 -5/8" casing to 1,850'. March 21, 2007 Run 9 -5/8" casing 1,850' — 4,025'. R/U to cement, C &C mud. Cement casing w/ 457 bbls Arcticset Lite lead and 95 bbls Class G tail. Displace w/ mud using rig pumps. Received 300 bbls cmt back at surface. Bump plug w/ 500 psi, check floats — OK. Clear floor, N/D diverter. March 22, 2007 Remove starting head, install wellhead section. N/U BOPE and test same to 250/5,000 psi. March 23, 2007 Repair and test upper IBOP. P/U drill pipe and RIH. CBU and POH, racking stands back in derrick. Repeat. M/U rotary steerable BHA. March 24, 2007 P /U, load and test rotary steerable BHA. RIH while P/U drill pipe. Tag up at 3,915', circ to even out mud properties. Pressure test casing to 3,000 psi for 30 min. Slip and cut drilling line. Drill cement from 3,915' to FC, drill out FC. Displace hole with new polymer mud system. Drill out shoe @ 4,025' and drill 20' of new hole to 4,056'. Perform FIT to 12.6 ppg EMW at 4,056' MD, 3,476' TVD. Obtain ECD baseline and directionally drill 8 -3/4" hole from 4,056' to 4,271' MD. I� March 25, 2007 Directionally drill 8 -3/4" hole from 4,271' to 5,219'. CBU, perform LOT to 13.0 ppg EMW. Drill from 5,219' to 6,457'. March 26, 2007 Directionally drill 8 -3/4" hole from 6,457' to 7,824'. March 27, 2007 Directionally drill 8 -3/4" hole from 7,824' to 9,299'. March 28, 2007 Directionally drill 8 -3/4" hole from 9,299' to 9,806'. Lost 900 psi pressure. Check surface system, POH looking for washout. Found washout at 22 stands + 1 single. • • Replace joint and RIH. Drill from 9,806' to 9,962'. Upper washpipe seal failed, repair same. Repair pipe handler. March 29, 2007 Directionally drill 8 -3/4" hole from 9,806' to 10,685'. Lost 500 psi pressure. Check surface system, POH looking for washout. Found washout at 9 stands + 1 single. Replace joint and RIH. March 30, 2007 Repair top drive. Directionally drill 8 -3/4" hole from 10,685' to 10,876' MD. MWD failed. POH, remove nuclear sources from LWD tools, download tools. March 31, 2007 Finish L/D BHA. Test BOPE to 250 / 5,000 psi. M/U and load BHA. RIH, breaking circ and testing MWD every 1,500'. April 1, 2007 Drill and slide from 10,876' to 11,440' MD. April 2, 2007 Drill and slide from 11,440' to 11,880' MD. April 3, 2007 Drill and slide from 11,880' to 13,030' MD April 4, 2007 Drill and slide from 13,030' to 13,110' MD TD. CBU. Trip out to 9,010' and back in to TD (ream tight spot from 12,900' to 13,100'). C &C hole and POH. April 5, 2007 POH, L/D BHA. R/U Schlumberger and RIH w/ dipole sonic and FMI logging tools. Tag obstruction at 12,100'. Could not work farther down. Log from 12,100' to surface. L/D logging tools. April 6, 2007 P/U VSP logging tools and RIH, logging 50 stations from surface to 11,800'. POH and R/D loggers. Clear floor, service rig. RIH w/ HWDP and POH, L/D same. P/U 2 -7/8" cementing stinger, RIH. April 7, 2007 Continue to RIH w/ cementing stinger on DP to 13,100'. R/U cementers. Pump 20 bbls water, 39 bbls of 15.8 ppg Class G cement, 2 bbls water and 206 bbls mud. POH to 12, 467' and CBU. POH to 10,950', spot viscous mud pill. POH to 10,850'. Pump 20 bbls water, 42 bbls 15.8 ppg Class G cement, 2 bbls water and 165 bbls mud. POH to 10,1912' and CBU. • • • April 8, 2007 POH, L/D cementing stinger. P/U perforated 5" sub, RIH. Wash to 10,251' MD, tag hard cement. Set down 30k lbs on cement. CBU. POH, S/B 13 stands, L/D remainder of DP. April 9, 2007 L/D DP. Pull wear bushing, M/U cement retainer. RIH, set retainer in 9 -5/8" casing at 3,950'. Establish injection rate, pump 5 bbls water followed by 29 bbls of 15.6 ppg Class G cement through retainer. Un -sting and lay 5 bbls cement on top of retainer. Pull two stands, circulate out and pressure test casing to 1,000 psi for 30 min — OK. POH to 2,700, displace mud in well to 9.8 ppg brine. POH, L/D Dp and setting tool. P/U 9 -5/8" bridge plug, RIH and set at 250'. POH w/ setting tool, L /D. R/U to cement. April 10, 2007 RIH to bridge plug at 250'. Lay in Arcticset cement from bridge plug to surface. R/D cementers. Clean drip pans, mud pumps, manifolds, shakers and various components. N/D BOPE, N/U dry hole tree. Fill tree w/ diesel and wrap wellhead in herculite and band. Clean pits, R/D lines. April 11, 2007 Finish cleaning pits. Release rig at 0400 hours, 4/11/07. FINAL REPORT for 2007 operations. Well Suspended. 2010 operations January 18, 2010 0' MD MW N/A Vis N/A Intl N/A General rig up. Install handrails, wind walls and cattle chute. Wired up top drive. Begin installation of torque tube. January 19, 2010 0' MD MW N/A Vis N/A Ind N/A Continue general rig up. Continue wind wall installation. Center top drive. Continue working on torque tube. Rig up to move BOPs. Install scaffolding; continue heating up the cellar and wellhead. P/U IBOP, saver sub and 5' pup joint to rig floor. Steam IBOP and saver sub, M/U to top drive. Close up blower and raise blocks. Start heating up top drive. January 20, 2010 0' MD MW N/A Vis N/A Inc' N/A Continue general rig up. P/U BOP stack, set back down. Re -rig to prevent side loading bridge crane. P/U stack, crown out 3" short. Removed mud cross from the stack. Set stack and bolted up. Started turning top drive slowly, warm up gear oil. Install blower vent assembly. • • January 21, 2010 0' MD MW N/A Vis N/A Ind N/A Rig up scaffolding, inner bell nipple to fit outer bell nipple. M g p g, pp be pp e. /U stack to double stud adapter at top of well head. Started installing choke and kill lines. January 22, 2010 0' MD MW N/A Vis N/A Ind N/A Finish hooking up choke line. Installed kill line. Hook up Koomey unit, R/U safety lines to support HCR and manual valves. Continue general rig up. January 23, 2010 0' MD MW N/A Vis N/A Inc' N/A Continue to hook up Koomey lines to BOP and safety cables to choke and kill hoses. Fill choke manifold and BOP with water, test all BOP components to 250 psi low and 4000 psi high. Annular tested to 250/2500 psi. Test Koomey for 3 min — full recovery. BOP test witnessed by Chuck Sheve, AOGCC rep. January 24, 2010 0' MD MW N/A Vis N/A Inc' N/A Rig down testing equipment. Blow down kill and choke lines. Clean rig floor, rig up to P/U drill pipe. P/U and stand back 5" drillpipe. Services rig, install Kelly hose. Rig up bleed off line. January 25, 2010 1784' MD MW 8.9 ppg Vis N/A Ind N/A Rig up drip pan hoses, spot cuttings tank and berm up. R/U rig tongs. Pre -spud safety meeting. M/U used PDC bit & bit sub. Drill cement from 33' to 150' with water -based mud. Saw metal shavings in returns, plan to change to mill tooth bit. Change to mill tooth bit, RIH, drill cement to 257', drill CBP, broke through at 258'. Wash and ream down to 1784', MD January 26, 2010 2615' MD MW 8.9 ppg Vis N/A Incl N/A RIH to 2615', bit started taking weight, wash to 2643'. P/U to rotate. SCR went down. Rig repair. Troubleshooting SCR. Pressure test the 9 -5/8" casing to 3500 psi for 30 min, OK. Test witnessed by Chuck Sheve, AOGCC rep. Tested gas alarms. Continue circulating with charge pump while waiting on rig repair. January 27, 2010 2615' MD MW 8.9 ppgVis N/A Inc! N/A Continue circulating warm mud, returns at 68deg. Trouble shooting SCR. January 28, 2010 3886' MD MW N/A Vis N/A Inc! N/A Trouble shooting SCR. POH to clear ice plug inside drill pipe. RIH to 1689' MD. SCR repaired. RIH to 2642' MD, CBU at 9BPM, 380 gpm, 335psi. Wash and ream to clean out casing, push bottom of CBP, hung up at 2664' and 2745' MD. Wash and ream cement stringers. At 3789' took 45 min to drill 1 ", then drill firm cement to 3932'. January 29, 2010 4,010' MD MW 9.5 ppg Vis 30 Inca 39° Circulated bottoms up, set back 1 std, blowdown top drive & mud line. Mud weight 9.5 ppg in and out. Re- tested casing to 3500 psi, 15 min, good test. Drill cement from 3,886' to cement retainer, drill junk & hard cement to 4,010'. s A - r s /7—/ r Sidetrack SR -1A was initiated on Jan -30, 2010. Sak River -1 was considered abandoned at this point. • ,~ ~~ ~~,~ ~~ ,`~ ~_~` .~ ,~~~ ~' MICROFILMED 6/30/2010. DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE C:\temp\Temporary Internet Files\OLK9\Microfilm_Marker.doc fl"k SEAN PARNELL, GOVERNOR L ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMSSION ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Mr. Bart Armfield VP, Operations Brooks Range Petroleum Corporation 510 L Street, Suite 601 Anchorage, Alaska 99501 ,� ( may n i o Re: Exploratory, Sak River # 1 Sundry Number: 309-411 Dear Mr. Armfield: 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, jj/orm Commissioner DATED this /9 day of December, 2009 Encl. 15'� STATE OF ALASKA RECEIVEDeW 1 , 17 . 1 ,4 1 ALASKSIL AND GAS CONSERVATION COMMI N � 0EC 0 9 z000 APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Alaska Gil & Gds Cons. Commission 1. Type of Request: Abandon Q Suspend ❑ Operational shutdown ❑ Perforate ❑ Waive; h®r8ge Other ❑ Alter casing[ Repair well ❑ Plug Perforations ❑ Stimulate ❑ Time Extension ❑ Change approved program ❑ Pull Tubing ❑ Perforate New Pool ❑ Re -enter Suspended Well /L• /N• 6 2. Operator Name: 4. Current Well Class: 5. Permit to Drill Number: Brooks Range Petroleum Corporation Development ❑ Exploratory El - 206 -167- 1 3. Address: Stratigraphic ❑ Service ❑ 6. API Number: 510 L Street, Suite 601, Anchorage, AK 99501 50- 029 - 23336- 00 -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 ❑ No Q Salk River #1 - 9. Property Designation: 10. KB Elevation (ft): 11. Field / Pool(s): ADL 390431 - 1 33.15 1 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): 13,110 - 11,348' Surface Surface See attachments None Casing Length Size MD TVD Burst Collapse Structural Conductor 80' 13 -318" 109' 109' n/a n/a Surface 3,993' 9 -5/8" 4,025' 3,467 5,750 psi 3,090 psi Intermediate Produ Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): n/a n/a n/a n/a n/a Packers and SSSV Type: n/a Packers and SSSV MD (ft): n/a 13. Attachments: Description Summary of Proposal Q 14. Well Class after proposed work: Detailed Operations Program ❑ BOP Sketch Q Exploratory Q - Development ❑ Service ❑ 15. Estimated Date for 1/4/2010 16. Well Status after proposed work: 014 12 �N Commencing Operations: Oil ❑ Gas ❑ Plugged " - Abandoned Q 17. Verbal Approval: Date: WAG ❑ GINJ ❑ WINJ ❑ WDSPL ❑ Commission Representative: 18. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Natasha Sachivichik 575 -7156 Printed N Bart Armfield Title t Z pQ VP, Operations Signature one ate 07- 339 -9965 COMMISSION USE ONLY Conditions of approval: Notify Commission so that a representative may witness Sundry Number: ✓ ®� ! Plug Integrity ❑ BOP Test ET", Mechanical Integrity Test ❑ Location Clearance ❑ Other: 0 t 7 5 Cr e- �u h 1 w tcl�.. 2a A/qc Z!5.L (e)Cl6)r`BJ Subsequent Form Required: APPROVED BY Approved by: COMMISSIONER THE COMMISSION Date: !?i � I . % a - - A �� 1 WP LPd 'U Q S it in Duplicate DE NEV DhrE DESCMPTKIN ORIGINAL SUBMISSION DATE: 01 -17— SCALE: 1 " = 200' SHEET: 1 OF 1 V" I pAIE .I7.o7 ELEV SCMPTKKI . CHANGE NOTES THIS 1) COORDINATES SHOWN HEREON, BASED UPON FIELD OBSERVATIONS Barrow PROJECT BEAUFORT SEA CONDUCTED JANUARY 4, 2007 1 Kaktovik 2) ALL DISTANCES, COORDINATES AND ELEVATIONS ARE IN U.S. SURVEY • • FEET • Nuiqsut Deadhorse 3) PROTRACTED SECTION LINES SHOWN HEREON ARE CALCULATED FROM UNITED STATES RECTANGULAR SURVEY RECORDS AND ARE APROXIMATE x ;;': • I� a 4) ELEVATIONS SHOWN HEREON BASED UPON ALASKA GEOID 06 (NAND 88) 5 NAD 83 VALUES SHOWN HEREON DERIVED FROM CORPSCON 6.0� s"usra an Ukpeagvik Inupiat Corporation Company VICINITY MAP - NOT TO SCALE AS-BUILT DRAWING LEGEND OF SAK RIVER PAD ® O.D. STEEL CONDUCTOR T 13 N, R 12 E, UM S 35 CONDUCTOR T 12 N, R 12 E, UM SECTION 1 � o LOCATED WITHIN 9�O Z T.12 N., R. 12 E., U.M., �p a I0D 200 SECTION 1 0, NAD 27, ZONE 4 SCALE IN FEET 200' LAT: 70 °2629.487" N �. LONG: 148 "58'04.733" W N = 6,006,061.0 E = 626,647.0 NAD 83, ZONE 4 N = 6,005,814.7 E = 1,766,680.3.3 PAD ELEV = 19.0' .O 199 010 mop low 3 s w r g 9 �� a NIA * : 49TH ... : *. // ' Lv, w KENNETH J. PINARD : o I �� `�k • No. 11545 i N ° ;0 A ' •....• '�S� � Q � 35 U m 1625 GEORE ERENCED INCLW G ADU STION OF o TO FIELD DATA WAS PERFORMED UNDER THE DIRECT N NORTH SUPERVISION OF A PROFESSIONAL LAND SURVEYOR lo ° SHORE PAD LICENSED BY THE STATE OF ALASKA 0 N � � I (n AS -BUILT DRAWING OF U � SAK RIVER P z 2 TOWNSHIP 12 NORTH, RANGE 12 EAST, UMIAT MERIDIAN, ALASKA a a BROOKS RANGE PETROLEUM DRAWN BY: LHH CHECKED BY: KJP W.O. No: 2006 -240 Brooks Range Petroleum Corporation Sak River #1(PTD # 206 -167) General P &A plan 1. Ensure regulatory compliance training is complete and key personnel are fully aware of responsibilities. 2. Pick up and stand back enough 5" drill pipe and HWDP. 3. Notify the AOGCC of intent to commence operations and plans to perform BOP test and drills. 4. Install 21 %" 5000 psi BOPS according to Nabors BOP operations manual. 5. Take on water based mud for drilling out cement plugs and bridge plugs inside the 9- 5/8" casing. 6. Test BOPS to 4000 psi. 7. PU 8 -1/2" Cleanout BHA, Test the BHA below the rotary table. Drillout the surface cement plug at 0 -250'. Drillout the composite bridge plug at 250' MD. Circulate out debris. 8. Pressure test the 9 -5/8" casing to 3500 psi to verify casing integrity. 9. Run to 3900' MD and tag the cement plug. Drillout the cement plug and the bridge plug set at 3,995'. Circulate out the cement cuttings and debris using Hi -Vis sweeps. 10. Drill through cement plug at the 9 -5/8" casing shoe and approximately 20' of new formation. Pump sweeps as required to ensure hole is clean and POH to surface. LOT test was done on the original Sak River -1 well, the LOT value was 13.0 ppg. Prepare to set a contingency cement kickoff plug if not able to sidetrack from existing cement below the casing shoe. At this point the Sak River #1 will be considered P &A -ed. 1 A 1 ,z -�yoy SAK RIVER #1 Brooks Range Petroleum Corporation As Suspended [2001] 13 -3/8" conductor Bridge plug at 250' set @ 109 RKB w/ permafrost MD/TVD cement to surface 10.6 ppg mud 50' cement on top of retainer Cement retainer at 3,950' MD / 9 -5/8 ", 40 #, L -80, BTC 3,392' TVD surf csg set at 4,025' MD, �-� 3,467' TVD BOC at 4,225' MD / 0 3,667' TVD 10.6 ppg mud TOC at 10,251' MD 10 8,569' TVD BOC at 10,850' MD / -► 9,168' TVD 10.6 ppg mud TOC at 12,700' MD / -► 10,953' TVD BOC at TD -► TD @ 13,110' MD / 11,348' TVD wjp 04/05/07 SAK RIVER #1 A Brooks Range Petroleum Corporation Proposed Well Schematic Post P&A 13 -3/8" conductor set @ 109' MD/TVD 9 -5/8 ", 40 #, L -80, BTC surf csg set at 4,025' MD, 3,467' TVD Kickoff plug 4,225' MD / _♦ 3,667' TVD 10.6 PPS mud TOC at 10,251' MD 8,569' TVD Sak River -lA ♦— Sidetrack Well TOC at 10,850' MD / 10.6 9,168' TVD PPS mud TOC at 12,700' MD / —♦ 10,953' TVD BOC at TD � IN TD @ 13,110' MD / 11,348' TVD — a m ♦ sy c ♦ r C D- , to ro r' Cr ♦ , �F o a o i , ♦ r r i A 0 0 o ALASKA STATE PLANE COORO. IK 40 trr N �o ''+► N�� 6 V _ CL rs o sw xm O N z�, n N c N ��yyyS i in 81 �q✓i' 2 ° ° s S17 §y a s ° s sss s s GCS 44.. 5::. 4AnI AAA A �: n SA AAA: J J J MMMnnnn D — 4 i� - - - - r p� Om W Q � nN O Z J J W N O N H O Q Q] M W > J VVVjj U M O Z N Q J Z M w1 Z j J 0- A/ H �g 0 ca Z w z w w J J Q > > N Z O W D 0 00 = J Q J J = J U x 2 m O O Po S wd 656 9002 /6 /0� pPpl. W w40�91 \9002 -�dtl9- 381\391 \6uuecui6u3 \NM \'9 AMIN, - - - - - - - - - - - - - - - - - - - - - - - �j 9<� s ----------------- S -------- — ------- mi --------------------- ---------------------- �4 ------------------------ 49" --At - ----- - --------------------- - --------------------- ------------------------ 41 ----------- ------------------ A --------------- -------------- ----- -4 -------------- - ----- ---------- ----------------- ----------- ----- �' II ++yeje I ° 1 1 1 �� I �X.�. i a - --------------------- f-4- ----- ----------- - ---------------- ------------------- � ------- 4�4 --------------- - - --------------------------- - I U lf-, g gill RECEIVED DEC 0 9 2009 Brooks Range Petroleum Alaska Oil & Go Cons. Commission a subsidiary ofAVCG, LLC Anchorage 510 L Street, Suite 601 * Anchorage, AK 99501 * Phone (907) 339 -9965 * Fax (907) 339 -9961 December 9, 2009 Mr. Dan Seamount, Chair Alaska Oil and Gas Conservation Commission 333 West 7 Ave., Suite 100 Anchorage, Alaska 99501 RE: Sundry Application to P &A Brooks Range Petroleum Corp.: Sak River #1 (PTD # 206 -167) Dear Mr. Seamount, Brooks Range Petroleum Corporation hereby submits an application to P &A the Sak River #1 well below the 9 -5/8" casing shoe. The Sak River # 1 was drilled and later suspended in 2007. The suspension of the Sak River #1 was accomplished using four cement plugs as indicated on the attached wellbore diagram.. The wellhead was left intact on the well. As a part 2010 winter drilling program the well will be sidetracked below the surface casing and a new exploration well Sak River # lA will be drilled to evaluate the Kuparuk reservoir. An application for permit to drill was submitted separately. Please find attached information as required by 20 AAC 25.005 (a) and (c) for your review. Pertinent information attached to this application includes the following: 1) Form 10 -403 Application for Sundry Approvals 2) A plat showing the surface location of the well 3) Proposed general P &A program 4) Current wellbore diagram 5) Proposed wellbore diagram after P &A 6) Diagrams and descriptions of the BOP equipment to be used If you have any questions or require additional information, please contact me at (907) 865 -5840 or Natasha Sachivichik at (907) 575 -7156. Sincerely, KS RATIGE PETROLEUM CORPORATION Bart Armfield Vice President - Op tions enclosures cc: Natasha Sachivichik - Fairweather 1 ! 6 ~f~ DATA SUBMITTAL COMPLIANCE REPORT 8/19/2009 Permit to Drill 2061670 Well Name/No. SAK RIVER 1 Operator BROOKS RANGE PETROLEUM MD 13110 ND 11349 Completion Date 4/10/2007 Completion Status SUSP Current Status SUSP API No. 50-029-23336-00-00 UIC N REQUIRED INFORMATION Mud Log Yes Samples No Directional Surve~ Yes DATA INFORMATION Types Electric or Other Logs Run: Mud Log - MWD Directional - LWD: CTN, ALD, ROP, DGR, EWR - WL (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Data Digital Dataset Log Log Run interval OH / Type ea~rrmt Numoer Name ~ 15198 Report: Final Well R 5ca1e Media No ~pg 15198 Mud Log 2 Col ~ 15198 Lithology 2 CoI ~g 15198 Mud Log 2 Col ~g 15198 Lithology 2 Col ~og 15198 See Notes 2 Col t~L~og 15198 See Notes 2 Col ~ Log 15199 lnduction/Resistivity 5 Col ~og 15199 Induction/Resistivity 5 Col Formation Micro Ima 5 Col 1 Sonic 25 Col Dip 5 Col Start Stop CH Received Comments Open 6/11/2007 End of Well Report, Table of Contents, Equip & Crew, Well Details, Geo Data, Drilling Data, Daily Reports, Formation Logs wlGraphics PDF & TIF 345 13110 Open 6/11/2007 MD Formation Log 345 13110 Open 6/11/2007 MD LWD Lithology 345 13110 Open 6l11/2007 ND Formation Log 345 13110 Open 6/11/2007 ND LWD Lithology 345 13110 Open 6/11/2007 MD Drilling Dynamics 345 13110 Open 6/11/2007 ND Drilling Dynamics 150 13110 Open 6/11/2007 MD ROP, DGR, EWR, CTN, ALD 5-Apr-2007 150 11348 Open 6/11/2007 ND ROP, DGR, EWR, CTN, ALD 5-Apr-2007 4022 11930 Open 6/8/2007 FMI, DSI, PPC, GPIT, GR 5-Apr-2007 250 11900 Open 6/11/2007 Best DT Finalt Result and Sonic 15-Apr-2007 3500 11922 Open 6/11/2007 Field MSD, FMI and GR (with Dip inside) 5-Apr-2007 ~ ~ DATA SUBMITTAL COMPLIANCE REPORT 8/19/2009 Permit to Drill 2061670 Well Name/No. SAK RIVER 1 Operator BROOKS RANGE PETROLEUM API No. 50-029-23336-00-00 MD 13110 ND 11349 Completion Date 4/10/2007 Completion Status SUSP Current Status SUSP UIC N D C 15526 See Notes 0 0 8/2/2007 Final Well Report, DML Data, LAS File, Log's PDF and Morning reports. All Electric ~ED C 15198 Report: Final Well R Open 6/11/2007 End of Well Report, Table of Contents, Equip & Crew, Well Details, Geo Data, Drilling Data, Daily Reports, Formation Logs w/Graphics PDF & TIF iED C 15199 Induction/Resistivity 150 13110 Open 6/11/2007 ROP, DGR, EWR, CTN, ALD 5-Apr-2007 Well Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments uttings 350 13110 1185 Cores and/or Samples are required to be submitted. This record automatically created from Permit to Drill Module on: 1/19/2007. ADDITIONAL II~FORMATION ~ Well Cored? Y t~ Daily History Received? N Chips Received? ~ Formation Tops ~"" Analysis ''f~-N- Received? ~ ~ Comments: Compliance Reviewed By: ~~ Date: ~~ Mt~ ~ . f''6~~VG~ V C~ ~a~ a $ Zoos Alaska C~il & Gas Cons. Commission Brooks Range Petroleum ancn~ra~e a subsia~'ary ofAVCG, LLC 510 L Street, Suite 601 ' Anchorage, AK 99501 ~ Phone (907) 339-9965 " Fax (~~ 339-9961 January 6, 2009 Alaska Oil and Gas Conservation Commission 333 W. 7th Ave., Ste. 100 Anchorage, Alaska 99501 RE: Corrected Well Completion Form 10-407 Brooks Range Petroleum Corporation: Sak River #1(PTD 20fr167) Attached, you will find the corrected 10-407 form for the Sak River #1 well drilled in March 2007. While researching for an upcoming well, it was noticed that some of the information on the original form filed in May 2007 was inaccurate. Please note the changes to sections 3(Address), 4a & b(TD tocation), 6 (Date Spudded) and section 28 (J-4 TVD depth). All other documents were sent in with original well completion report in May 2007. If you have any questions or require additional information, please contact me at 907-859-5811. We apologize for this oversight. Sincerely, ~e ~~~~~~ Isabel Craig B. Eng. (Geo ogy) Operations Geologist , - - ~~,.~/ ~~ STATE F ALASKA O /J~~ ~9 ~~l ~ o ~JANO$209 ~ ALASKA GIL AND GAS CONSERVATION COMMISSION WELL COMPLET{ON OR RECOMPLETIO+I~'~~~'~°l~c~'L~ 1a. Well Status: Oil ~ Gas ~ Plugged ~ Abandoned ~ Suspended Q zonac 2s.to5 zonnc 2s.iio GINJ^ WINJ~ WDSPL^ WAG ^ Other^ No. of Completions: 1b. . pevelopment ^ Exploratory0 Service ~ Stratigraphic Test^ 2. Operator Name: Brooks Range Petroleum Corporation 5. Date Comp., Susp., or Aband.: 4N0/2007 12. Permit to Drill Number: 206-167 3. Address: 510 L Sb+set, 8uite ~1, Mchorag~, Ak, 89501 ,~e Spudded: 3116l~lpQ7 13. API Number: 50.028-23336-00-00 4a: ~ocation of WeN (Govemmenta{ Section): Surface: 1951'FNL, 1625'FEL, Sec 1, T12N, R12E, UM 7. Date TD Reached: 4/4I2007 14. Well Name and Number: Sak River#1 Top of Productive Horizon: 12,945'MD: 123TFSL, 1174'FWL, Sec 36, T13N, R12E, UM 8. KB (ft above MSL): 49 Ground (ft MSL): 19 15. Field/Pool(s): Total Depth: 13,110'MD: 1~'FSL, 418TFEL, 8sC 36. T13N. R12E~ UM 9. P{ug Badc Depth(MD+ND): Surface Exploratory . Location of Well (Shate Base Plane Coordinates, NAD 2'n: Surface: x- 626647.00 y- 6006061.00 Zone- 4 10. Total Depth (MD + ND): 13,110'MD I 11,349'TVD 16. Property Designation: ADL - 390431 TPI: x- 63Q453.17 y- 6009314.59 Zone- 4 Tofal Depth: x- 630399.93 y- 6009337.60 Zone- 4 11. SSSV Depth (MD + ND): N/A 17. tand Use Permit: LAS 24983 18. DirecGonal Swvey: Yes ~ No (Submit electronic and printed information per 20 AAC 25.050) 19. Water Depth, if Oifshore: NIA (ft MSL) 20. Thickness of Permafrost (ND): 1,896' 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): Mud Log - MWD Directional - LWD: CTN, ALD, ROP, DGR, EWR - WL: Dipole Sonic, FMI, VSP 22. CASING, LINER AND CEMENTING RECORD CASING WT. PER GRADE SETTING DEPTH MD SETTING DEPTH TVD HOLE SIZE CEMENTING RECORD AMOUNT FT TOP BOTTOM TOP BOTTOM pULLED 16" 0.485" WT N/A 27' 107' 27' 10T Grouted to SurFace None 9-5/8" 40# L-80 25' 4,025' 25' 3,468' 12-1/4" Cmtd to Surf w/ 552 bbls None 23. Open to production or injection? Yes ~ No Q If Yes, list each 24. TUBING RECORD interval open (MD+ND of Top & Bottom; Perforation Size and Number): SIZE DEPTH SET (MD) PACKER SET (MD) NIA 25. ACIO, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED N/A 26. PRODUCTION TEST Date First Production: Well not tested or produced Method of Operation (Flowring, gas lift, etc.): Date of Test: Hours Tested: Production for Test Period Oil-Bbl: Gas-MCF: Water-Bbl: Choke Size: Gas-Oil Ratio: Flow Tubing Press. Casing Press: Calculated 24-Hour Rate Oil-Bbl: Gas-MCF: Water-Bbl: Oil Gravity - API (corr): 27. CORE DATA Conventional Core( s) Acquired? Yes ^ No Q Sidewall Cores Acquired? Yes ^ No Q 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 fortn, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AI\C 25.071. L~O.e.~T~ ~~/S~iOF.~ ~ ... , . :,.a -~'~-D,.~' ~°~~~~ ~~, ~ ~_E~+ :~ ~ ~~0~ ,~~ ~ -, . ~~ ~a- Form 10-407 Revised 2/2007 CONTINUED ON REVERSE ~ • ~ 28. GEOLOGIC MARKERS (List all formati~s and markers e.ncouMered): 29. FORMATION TESTS NAME MD TVD W ell tested? Yes ~ No If yes, list intervals and formations tested, briefly summarizing test results. Attach separate she~s to this form, if needed, Permafr~t - Top Surface Surface and submit detailed test information per 20 AAC 25.071. Permafrost - Base 2,048' 1,877' SS Ugnu C 4,420' 3,731'SS W est Sak D 7,224' 5,980'SS HRZ 9,895' 8,176'SS Kalubik 10,027' 8,305'SS Kuparuk Top 10,183' 8,459'SS kuparuk C 10,187' 8,462'SS LCU 10,564' 8,839'SS Miluv~ch 10,833' 9,107'SS J-4 11,701' 9,~82'SS J-3 11,966' 10,221'SS J-2 12,082' 10,328'SS J-1 12,445' 10,667'SS Sag River 12,754' 10,962'SS Shublik 12,845' 11,050'SS Ivishak 12,945' 11,146'SS TD (Kavik) 13,110' 11,306'SS 30. List of Attachments: Welibore schematic, pad and wetl as-built diagram, summary of operations. Well logs submitted separately. 31. I hereby certify that the foregang is true and correct to the best of my knowledge. Contact: Isabel Craig 865-5811 Printed Name: James R. W ine arf~ Tkle: VP Land and E~~nal Affairs Signature: ~ one: 907-865-5804 Date: ~ ~~ Q ~ v INSTRUCTIONS ` / eral: Th' form is designed for su mittin a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a I schematic diagram with eac 0-407 well completion report and 10-404 well sundry repat when the dawnhde well design is changed. It 1a: Class~cation of Service wells: Gas Injecti~, Wffier Injection, Wate.r-Akernating-Gas Injection, Salt Wffier Disp~al, Wffier Supply for /njection, Observation, or Other. Multiple completion is d~ned ~ a well producing from more than one pool with production fran each pod completely segregated. Each segr~ated pod is a campletion. Item 4b: TPI (Top of Producing Irrterval). Item 8: The Kelly Bushing and Ground Level elevations in feet above mean sea level. Use same as refere,nce for depth measuremerrts giv~ in other spaces ai this fam and in any attachmerrts. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 20: Report tnie vertical thickness of permafrost in Box 20. Pravide MD and TVD for the top and b~e ofi permafr~t in Box 28. Item 22: Attached supplem~tal records for this well should show the details of any muRiple stage cementing and the location of the c~nenting tod. It~n 23: If this well is completed for separate productiai from more than aie interval (mukiple completia~), so state in it~n 1, and in itern 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form fa each additional interval to be separately produced, showing the data pertinent to such iMerval). Item 26: Method afi Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, W ater Injection, Gas Injection, Shut-in, or Other (e~lain). Item 27: Provide a listing af iMervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory infortnation required by 20 AAC 25.071. It~n 29: Provide a listing of irrtervals tested and the corresponding formadion, and a brief summary in this box. Submit detailed test and analytical laboratory informati~ required by 20 AAC 25.071. Form 10-407 Revised 2/2007 ~ ! Brooks Range Petroleum Corporation a .ruhsidiary o('~t Y'CG, LLC , jji Alaska Oil and Gas Conservation Commission Mr. John Norman, Chair 333 West 7th Ave., Suite 100 Anchorage, AK 99501 Enclosed is a CD with the digital mud log data far the Brooks Range Petroleum Corp. Sak River #1 well. The CD you received with the data we originally sent you was incomplete. Please replace that CD with this new one. Please a~cept our apologies for any inconvenience. D ~0~ - «O~ '~ c 5`Sa~ ? 1~ 1, StreeF, .Suir.e h01, ,4rachor~z;~e. .~tlaska J9.501 Iel: 907.;_?9.9)G? Fu.r: 90,'.;339.99(! ~ ~ Brooks Ranqe Petrofeum Corporation a subsicdi~rn~ oJ~AUCG, LI_C June 8, 2007 Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7th Ave., Suite 100 Anchorage, Alaska 99501 RE: Final LWD Well Log Data Final Mud Log Report Dipmeter FMI DSUGR/SP Brooks Range Petroleum Corp. Sak River #1 Dear Mr. Norman, Brooks Range Petroleum Corporation hereby submits the Final LWD Well Logs, the Dipmeter, FMI and DSUGR/SP logs, checkshot survey, and the Final Mudlog Report for Sak River #l. Please sign in the space provided below and return one copy of this transmittal letter. If you have any questions or require additional information, please contact me at 865- 5802. Sincere , Douglas S. Hastings Vice President of Exploration Brooks Range Petroleum Corp. ~C7~o /(v ~ ~ t ~l L}'~l Cc: Jim Winegarner RECEIVED this day of June, 2007 B}~: ~ Vl(1 d~~ NP 1 V ld~nu 1'~~iM ~ rs~99 REI,~~~~~~~ JUN 1 1 200T ~aska 0;~& Gas Cons.Conurd~sior~ Atid~oraqe Title: j'~Q.~. jZ2so~ rn.~ I~ea.Fi~ ~- ~' 1~1 eo~.5e se r~~ l s~ i~~,-~- ~~~. ~~~-e~s `~ e~ ~ wl.e ~l e,c~ e ~ 14(3C) dYest Aenson l3oarlei~al•d, Saaite 51t), Anchnrczge, .Aluska 9950? T'el: 9O7.339.9,965 Far: 9~7.33.9.9yh1 ~ • Brooks Range Petroleum Corporation ~~~~~UG~ APR 2 4 2007 ~laska Oil & Gas Cons. Commiss'ron Qnchorage Apri124, 2007 Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7th Ave., Suite 100 Anchorage, Alaska 99501 RE: Well Completion Report Brooks Range Petroleum Corporation: Sak Rivert #1 (PTD 206-167) Dear Commissioner Norman, Brooks Range Petroleum Corporation hereby submits its Well Completion Report for the work performed in drilling its Sak River #1 exploration well on the North Slope. Please find enclosed the following information for your files: 1) Form 10-407 Well Completion or Re-completion Report and Log 2) Well As-Built Survey 3) Wellbore Schematic 4) Well Operations Summary Copies of the mud log and all LWD, MWD and wireline logs run will be submitted under separate cover as they become available. If you have any questions or require additional information, please contact me at 258- 3446. Sincerely, For BROOK RANGE PETROLEUM CORPORATION ~a . Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. enclosures cc: Jim Winegarner - Brooks Range - - ,,~,~ STATE OF ALASKA ~~ ~E~EI~/ED ~ ~ ALASKA OIL AND GAS CONSERVATION COMMISSION APR 2 4 ZOO7 WELL COMPLETION OR RECOMPLETION REPORT.AN,p„L,(~G__ „__. 1a. Well Status: Oil~ Gas~ Plugged ~ Abandoned ~ Suspended Q 2onnczs.~os 20AAC25.110 GINJ^ WINJ ^ WDSPL^ WAG ^ Other^ No. of Completions: • 1b. Well . Development ^ a~~~~~bry^~ Service ^ Stratigraphic Test^ 2. Operator Name: Brooks Range Petroleum Corporation 5. Date Comp. Susp , or~ Aband.: 4/10/2007 12. Permit to Drill Number: 206-167 3. Address: 1400 W. Benson Bivd, Suite 510, Anchorage, AK 99503 6. Date Spudded: 3h6/2006 13. API Number: 50-029-23336-00-00 4a. Location of Well (Governmental Section): Surface: 1951' FNL, 1625' FEL, Sec 1, T12N, R12E, UM 7. Date TD Reached: 4/4/2007 14. Weil Name and Number: Sak River #1 Top of Productive Horizon: 12,945' MD: 1237' FSL, 1174' FWL, Sec36, T13N, R12E, UM 8. KB (ft above MSL): 4 Ground (ft MSL): 9 15. Field/Pool(s): Total Depth: 13,110' MD: 1196' FSL, 1177 FWL, Sec 36, T13N, R12E, UM 9. Plug Back Depth( +ND): Surf e Exploratory ~ 4b. Location of Well (State Base Plane Coordinates, NAD 27): Surface: x- 626647.00 y- 6006061.00 Zone- 4 10. Total Depth D+ TVD): 13,110' , 11,349' ND 16. Property Designation: ADL-390431 ~ TPI; x- 630453.17 y- 6009314.59 Zone- 4 Total Depth: x- 630455.44 y- 6009273.68 Zone- 4 11. SSSV D th (MD + ND): N/A 17. Land Use Permit: LAS 24983 18. Directional Survey: Yes ~ No (Submit electronic and printed information per 20 AAC 25.050) 19. Wat Depth, if Offshore: N/A (ft MSL) 20. Thickness of Permafrost (ND): 1,896' 21. Logs Obtained (List all logs here and submit electronic and printed informati per 20 AAC 25.071): Mud Log - MWD Directionai - LWD: CTN, ALD, ROP, DGR, EWR - WL: Di le Sonic, FMI, VSP 22. CASING, L INER AND MENTING RECORD CASING WT. PER GRADE SETTING DEPTH MD SETTI D PTH TVD HO~E SIZE CEMENTING RECORD AMOUNT FT TOP BOTTOM T BOTTOM PULLED 16" 0.495" WT N/A 27' 107' 107' Grouted to surface None 9-5/8" 40# L-80 25' 4,025' 2 3,468' 12-1/4" Cmtd to surt wl 552 bbls None ~ 23. Open to production or injection? Yes~ No0 es, list each 24. TUBING RECORD interval open (MD+TVD of Top & Bottom; Perforation ' and Number): SIZE DEPTH SET (MD) PACKER SET (MD) N/A h 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. ~v DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED ~ N/A a ~ 26. PRODUCTION TEST Date First Production: Well not tested or oduced. Method of Operation (Flowing, gas lift, etc.): N/A Date of Test: Hours Teste : Production for Test Period Oil-Bbl: Gas-MCF: Water-Bbl: Choke Size: Gas-Oil Ratio: Flow Tubing Press. Casing ess: Calculated 24-Hour Rate ~-- Oil-Bbl: Gas-MCF: Water-Bbl: Oil Gravity - API (corr): 27. CORE DATA Conventional Core(s) Acquired? Yes ^ No ^~ Sidewall Cores Acquired? Yes ^ No Q If Yes to either questio , list formations and intervals cored (MD+ND 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. ~ ,.~.. • ~ ~ ~ ~~ MAY ~ ~ 2007 .-~~_ ~ ~~~ , , ,~.;..~,...,~.~' 'ssion _ _ Form 10-407 Revised 2I2007 ~ R I C~ I N A~°NTINUED ON REVERSE SIDE ~ ~ . 28. GEOLOGIC MARKERS (List all formations and markers encountered): 29. FORMATION TESTS NAME MD TVD Well tested? Yes ~ No If list int es l d Q y , erva s an formations tested, briefly summarizing test results. Attach separate sheets to Permafrost - Top Surface Surface this form, if needed, and submit detailed test information per 20 AAC 25.071 Permafrost - Base 2,048' 1,877' SS . Ugnu C 4,420' 3,731' SS West Sak D 7,224' S,980' SS H~ 9,895' 8,176' SS KalubiK 10,027' 8,305' SS Kuparuk Top 10,183' 8,459' SS Kuparuk C 10,187' 8,462' SS LCU 10,564' 8,839' SS Miluveach 10,833' 9,107' SS ~'4 11,701' 10,221' SS ~'3 11,966' 10,221' SS ~'2 12,082' 10,329' SS ~'~ 12,445' 10,667' SS Sag R. 12,754' 10,962' SS Shublik 12,845' 11,050' SS Ivishak 12,945' 11,146' TD (Kavik) 13,110' 11,306' 30. List of Attachments: Wellbore schematic, pad and well as-built diagram, summary of operations. Well logs submitted separately. 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Bill Penrose 258-3446 Printed Name: James R. Winegarner Title: VP, Land and External Affairs Signature: ~ Phone: 907-339-9965 Date: G G O / ~ / " ~,~' INSTRUCTIONS General: his form is designed f ubmitting a complete and correct well completion report and fog on all types of lands and leases in Alaska. Submit a well schema c 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-Aiternating-Gas Injection, Salt Water Disposal, Water Supply for 1 njection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool comp~etely 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 (multipie 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 intervai 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 intervafs 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 • • SAK RIVER #1 Brooks Range Petroleum Corporation As Suspended 13-3/8" conductor Bridge plug at 250' MD TVD ~B ~'~ permafrost cement to surface 10.6 ppg mud 50' cement on top of retainer ~° Cement retainer at 3,950' MD / 9-5/8", 40#, L-80, BTC 3,392' TVD surf csg set at 4,025' MD, t~ 3,467' TVD BOC at 4,225' MD / ~ 3,667' TVD 10.6 ppg mud TOC at 10,251' MD / -- 8,569' TVD TOC at 10,850' MD / ~ 9,168' TVD 10.6 ppg mud TOC at 12,700' MD / -- 10,953' TVD BOC at TD --- TD @ 13,110' MD/ 11,348' TVD wjp 04/OS/07 • ~ ORIGINA~ SUBMISSION DATE: 01-17-07 SCALE: 1"= 200' SHEET: 1 OF 1 ~~~ ~~~ ~°A~ `~~°n0N 1 ~•~~•o~ ELEV. CHANGE NOTES: THIS 1} COOROINATES SHOWF( HEREON, BASED UPON FIELD OBSERVATIONS Barrow PROJECT BEAUFORT SEA ~ CONDUCTED JANUARY 4, 2007 2) ALL DISTANCES, COORDINATES AND ELEVATIONS ARE IN U.S. SURVEY 1 Kaktovik FEE~ • ~ 3) PROTRACTED SECTION LINES SHOWN HEREON ARE CALCUTATED FROM • NUIC~SUt Deadhorse UNITED STATES RECTANGUTAR SURVEY REC ORDS AND ARE APROXIMATE ~, :A ~ ~ ~• - ~5~ .~ +`"~~~~'~t ~~ ~"~'x.. ~` ~` y.'.a i. y a ~ 1Y ' ~~ ' ~ , Y~ V ~ ~ 4) ELEVATIONS SHOWN HEREON BASED UPON ALASKA GEOID 06 (NAVD 88) ~~ ~Y ~ ' s;~ N ~ ~ ' "` ~"~t '~ ~ : t : j,~ M'~ ~~~~ ~''~~r~'~' T u~. ~ ~ $ ?'. ` 5) NAD 83 VALUES SHOWN HEREON DERIVED FROM CORPSCON 6.0 .. 3 ~ ~ ~' 1 ' •~ ~'~~ °~:,.~t ~~ .:r` ` ~~ ~ ~~`~- ~*~~ ~ p~^ J~~ ~~ ~,:. 1~~" j '~~~~'~" k,~ „~ ~' 3~S~~~a~ ~'~ ~~.. . 3 ~ l' an~ ~ Y ~ N 1 ~ ~ ~ j y vy ' LL. { - ~o .< 1 ~~x~`,'~~1~`„° / 4~. V ~ y ~ ~ 3 1 f ~ ~ ,+~ r" ~ ,^w~+^i€`. '~ ~ ~:i''~ , j*~,, ~~~ ~ ~- . ~ ; i : : r~,. ' ~ .. y. ,~ ~~ ' ,.;~ ~,,1? ~.,~ • ~~a~Te~~w~~~.~~ an Ukpeagvik Inupiat Corpora8on Company VICINIIY MAP - NOT TO SCALE AS ~ B U I LT D IZ/~"~W' ~ G LEGEND OF SAK RIVER PAD ~,6~~ O.D. STEEL CONDUCTOR T 13 N, R 12 E, UM SEC710N 35 T 12 N, R 12 E, UM SECTION 1 ~ CONDUCTOR Z LOCATED WITHIN ~g6 T. 12 N., R. 12 E., U.M., `~' `~ ' o ,oo zoo SECTION 1 r • r V~ ~ `9 NAD 27, ZONE 4 SCAI.E W FEET ° ' , 25 i„ = 200' LAT: 70 29.487" N `- 4, t~` . 'Sh LONG: 148°58'04.733" W N = 6 006 061 0 t ~, ~ ~ ~, , , . E = 626,647.0 NAD 83, ZONE 4 N = 6,005,814.7 ~ - ~'~ ~ E = 1,766,680.3.3 r ~.fl. .o ~e9' 9~ PAD ELEV = 19.0' ~~ /~ ~ .- cD `t\\\\~ Z F A < s ~ ~~ 00 ~ Z ~ ~'~~ ~ ' ~qs < ~ ~ %, P' • ' 'f - , ~P ~~' G~ ~ PQ ~' ~ . N N ~~.' m ' 9 ~~ ~ ~ \ ~ e '• * / ~ * •' 49 - , \G ~ ~ .. / i I w ~~ i T ~f :lQ' , . . . . % ~ N "~ ~ ~'. KENNETH J. PINARD : ~ ~ % I ~ ~ ~ + ~ ' No.11545 • ~ , ~ 3s~ z z ,~,F~pR~FfSSIONAI~~`~~~ I ~ - ~ N \\\~~```t TO 1625' ~ NORTFI ~ I- F- P~,Z~~ ~.,,,.~~~~~~ OEOREFERENCED DATA WCLUDIN6 AOUISRION OF SHORE PAD FELD DATA WAS PERFORMED UNDER THE O~RECT SUPERVISIONOFAPROFESSIONALUNpSURVEYOR . LICENSED BV TFIE STATE OF ALASKA AS-BUILT DRAWING OF SAK RIVER PAD BROOKS RANGE PETROLEUM TOWNSHIP 12 NORTH, RANGE 12 EAST, UMIAT MERIDIAN, AIASKA DRAWN BY LH : H CHECKED BY: KJP W.O. No: 2006-240 ~, ; ~ ~ a 0 ~ 0 o, N ~ / I ~ ~ Z I o_ Q~ o~ ~- z1 3, ~ a o~ • • Brooks Range Petroleum Corporation SAK RIVER #1 SUMMARY OF OPERATIONS March 11, 2007 Accepted rig at previous Operator's drilling location. Haul camp to Sak R. location. Separate rig components and prepare subbase for road travel. Move pump module, pit module and motor unit to Sak R. location. March 12, 2007 Move subbase/derrick and pipe sheds to Sak R. location. Prepare shops for move. March 13, 2007 Set subbase/derrick over conductor and spot remaining rig components. R/LT power and electrical connections. March 14, 2007 Haul shop and satellite camp to location and set in place. Set fuel tank. Install wellhead on conductor. Fire up heaters on pipe shed. N/U diverter. Take on mud into pits. March 15, 2007 Finish N/LJ diverter. Take on additional mud. P/LT and SB DP and HWDP. Set mouse hole, R/U pipe skate rails, prepare top drive. March 16, 2007 MW 8.7 ppg Vis 320 sec P/L1 and SB 3,595' of DP, HWDP and BHA. Function test diverter and pressure test surface lines to 3,500 psi. Fill hole, tag btm at 104', drill 12-1/4" hole to 311'. Pull into conductor, M/U and test MWD. M/U 8" DC's. RIH, drill 12-1/4" hole to 340'. Flowline packed off w/ gravel. Clear flowline. March 17, 2007 MW 8.7 ppg Vis 320 sec Drill 12-1/4" hole 340' to 394'. Flowline packed off. Clean out flowline, circ to even up mud system properties. RIH, drill 394' to 556'. March 18, 2007 MW 9.3 ppg Vis 180 sec Directionally drill 12-1/4" hole 556' - 2,431'. March 19, 2007 MW 9.6 ppg Vis 150 sec Directionally drill 12-1/4" hole 2,431' - 4,036'. CBU and POH. Back-ream through tight spot 2,100' - 2,054'. Continue POH 2,054' to 1,298' March 20. 2007 MW 9.6 ppg Vis 150 sec • • Continue POH 1,298' - 306' (wet). RIH to 3,944'. MAD pass 3,944' - 4,036'. CBU, monitor well (static) and POH. Download and L/D BHA. Make dummy run with casing hgr and landing joint to wellhead. R/U to run casing. Run 9-5/8" casing to 1,850'. March 21, 2007 MW 9.6 ppg Vis 150 sec Run 9-5/8" casing 1,850' - 4,025'. R/LT to cement, C&C mud. Cement casing w/ 457 bbls Arcticset Lite lead and 95 bbls Class G tail. Displace w/ mud using rig pumps. Received 300 bbls cmt back at surface. Bump plug w/ 500 psi, check floats - OK. Clear floor, N/D diverter. March 22, 2007 MW 9.7 ppg Vis 57 sec Remove starting head, install wellhead section. N/U BOPE and test same to 250/5,000 psi. March 23, 2007 MW 9.6 ppg Vis 63 sec Repair and test upper IBOP. P/LT drill pipe and RIH. CBU and POH, racking stands back in derrick. Repeat. M/U rotary steerable BHA. March 24, 2007 MW 9.6 ppg Vis 54 sec P/U, load and test rotary steerable BHA. RIH while P/LT drill pipe. Tag up at 3,915', circ to even out mud properties. Pressure test casing to 3,000 psi for 30 min. Slip and cut drilling line. Drill cement from 3,915' to FC, drill out FC. Displace hole with new polymer mud system. Drill out shoe @ 4,025' and drill 20' of new hole to 4,056' . Perform FIT to 12.6 ppg EMW at 4,056' MD, 3,476' TVD. Obtain ECD baseline and directionally dri118-3/4" hole from 4,056' to 4,271' MD. March 25, 2007 MW 9.6 ppg Vis 49 sec Directionally drill 8-3/4" hole from 4,271' to 5,219'. CBU, perform LOT to 13.0 ppg EMW. Drill from 5,219' to 6,457'. March 26, 2007 MW 9.6 ppg Vis 49 sec Directionally dri118-3/4" hole from 6,457' to 7,824'. March 27, 2007 MW 9.7 ppg Vis 58 sec Directionally dri118-3/4" hole from 7,824' to 9,299'. March 28, 2007 MW 10.5 ppg Vis 61 sec Directionally drill 8-3/4" hole from 9,299' to 9,806'. Lost 900 psi pressure. Check surface system, POH looking for washout. Found washout at 22 stands + 1 single. Replace joint and RIH. Drill from 9,806' to 9,962'. Upper washpipe seal failed, repair same. Repair pipe handler. March 29, 2007 MW 10.4 ppg Vis 54 sec Directionally drill 8-3/4" hole from 9,806' to 10,685'. Lost 500 psi pressure. Check surface system, POH looking for washout. Found washout at 9 stands + 1 single. Replace joint and RIH. March 30, 2007 MW 10.4 ppg Vis 54 sec ~ ~ Repair top drive. Directionally drill 8-3/4" hole from 10,685' to 10,876' MD. MWD failed. POH, remove nuclear sources from LWD tools, download tools. March 31, 2007 MW 10.4 ppg Vis 50 sec Finish L/D BHA. Test BOPE to 250 / 5,000 psi. M/U and load BHA. RIH, breaking circ and testing MWD every 1,500'. April 1, 2007 MW 10.4 ppg Vis 50 sec Drill and slide from 10,876' to 11,440' MD. Apri12, 2007 MW 10.4 ppg Vis 54 sec Drill and slide from 11,440' to 11,880' MD. Apri13, 2007 MW 10.3 ppg Vis 50 sec Drill and slide from 11,880' to 13,030' MD Apri14, 200~ MW 10.6 ppg Vis 53 sec Drill and slide from 13,030' to 13,110' MD TD. CBU. Trip out to 9,010' and back in to TD (ream tight spot from 12,900' to 13,100'). C&C hole and POH. Apri15, 2007 MW 10.3 ppg Vis 50 sec POH, L/D BHA. R/U Schlumberger and RIH w/ dipole sonic and FMI logging tools. Tag obstruction at 12,100' . Could not work farther down. Log from 12,100' to surface. L/D logging tools. Apri16, 2007 MW 10.3 ppg Vis 50 sec P/U VSP logging tools and RIH, logging 50 stations from surface to 11,800'. POH and R/D loggers. Clear floor, service rig. RIH w/ HWDP and POH, L/D same. P/U 2-7/8" cementing stinger, RIH. Apri17, 2007 MW 10.6 ppg Vis 56 sec Continue to RIH w/ cementing stinger on DP to 13,100'. R/LJ cementers. Pump 20 bbls water, 39 bbls of 15.8 ppg Class G cement, 2 bbls water and 206 bbls mud. POH to 12, 467' and CBU. POH to 10,950', spot viscous mud pill. POH to 10,850'. Pump 20 bbls water, 42 bbls 15.8 ppg Class G cement, 2 bbls water and 165 bbls mud. POH to 10,191' and CBU. April 8, 2007 MW 10.6 ppg Vis 56 sec POH, L/D cementing stinger. P/LT perforated 5" sub, RIH. Wash to 10,251' MD, tag hard cement. Set down 30k lbs on cement. CBU. POH, SB 13 stands, L/D remainder of DP. Apri19, 2007 MW 10.6 ppg Vis 56 sec L/D DP. Pull wear bushing, M/U cement retainer. RIH, set retainer in 9-5/8" casing at 3,950'. Establish injection rate, pump 5 bbls water followed by 29 bbls of 15.6 ppg Class G cement through retainer. Un-sting and lay 5 bbls cement on top of retainer. Pull two stands, circulate out and pressure test casing to 1,000 psi for 30 min - OK. POH to . • 2,700, displace mud in well to 9.8 ppg brine. POH, L1D Dp and setting tool. PlU 9-518" bridge plug, RIH and set at 250' . POH w/ setting tool, L/D. R1LT to cement. April 10, 2007 MW 10.6 ppg Vis 56 sec RIH to bridge plug at 250'. Lay in Arcticset cement from bridge plug to surface. R/D cementers. Clean drip pans, mud pumps, manifolds, shakers and various components. N/D BOPE, N/U dry hole tree. Fill tree wl diesel and wrap wellhead in herculite and band. Clean pits, R/D lines. April 11, 2007 Finish cleaning pits. Release rig at 0400 hours, 4/11/07. • ~ Brooks Range Petroleum Corporation ~~E~EbVEQ April 13, 2007 APR 1 6 2007 Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission Alaska Oil & Gas Cons. Cotnrrtission 333 West 7`h Ave., Suite 100 knchorage Anchorage, Alaska 99501 RE: Weekly Report of Operations Brooks Range Petroleum Corp.: Sak River #1(PTD # 206-167) Dear Mr. Norman, This is a report of Brooks Range Petroleum Corporation's well operations on the Sak River #1 for the period April 6 through April 11, 2007, inclusive. April 6, 2007 P/LT VSP logging tools and RIH, logging 50 stations from surface to 11,800'. POH and R/D loggers. Clear floor, service rig. RIH w/ HWDP and POH, L/D same. P/LT 2-7/8" cementing stinger, RIH. April 7, 2007 Continue to RIH w/ cementing stinger on DP to 13,100'. R/[J cementers. Pump 20 bbls water, 39 bbls of 15.8 ppg Class G cement, 2 bbls water and 206 bbls mud. POH to 12, 467' and CBU. POH to 10,950', spot viscous mud pill. POH to 10,850'. Pump 20 bbls water, 42 bbls 15.8 ppg Class G cement, 2 bbls water and 165 bbls mud. POH to 10,1912' and CBU. April 8, 2007 POH, L/D cementing stinger. P/U perforated 5" sub, RIH. Wash to 10,251' MD, tag hard cement. Set down 30k lbs on cement. CBU. POH, SB 13 stands, L/D remainder of DP. Apri19, 2007 L/D DP. Pull wear bushing, M/LT cement retainer. RIH, set retainer in 9-5/8" casing at 3,950'. Establish injection rate, pump 5 bbls water followed by 29 bbls of 15.6 ppg Class G cement through retainer. Un-sting and lay 5 bbls cement on top of retainer. Pull two stands, circulate out and pressure test casing to 1,000 psi for 30 min - OK. POH to 2,700', displace mud in well to 9.8 ppg brine. POH, L/D DP and setting tool. P/U 9-5/8" bridge plug, RIH and set at 250'. POH w/ setting tool, L/D. R/LT to cement. April 10, 2007 RIH to bridge plug at 250'. Lay in Arcticset cement from bridge plug to surface. R/D cementers. Clean drip pans, mud pumps, manifolds, shakers and various components. N/D BOPE, N/LJ dry hole tree. Fill tree w/ diesel and wrap wellhead in herculite and band. Clean pits, R/D lines. • • Mr. John Norman Page 2 April 11, 2007 Finish cleaning pits. Release rig at 0400 hrs, 4/11/07. FINAL REPORT If you have any questions or require additional information, please contact me at 258- 3446. Sincerely, For BROOKS RA GE PETROLEUM CORPORATION ,~ < Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. cc: Jim Winegarner - Brooks Range t • . Brooks Range Petroleum Corporation ~E~E~V~~ APR 1 ~ 2007 Apri16, 2007 Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7`h Ave., Suite 100 Anchorage, Alaska 99501 Alsska qif & Gas Cans. Carxnisaion ~,._ _ knclwrege RE: Weekly Report of Operations Brooks Range Petroleum Corp.: Sak River #1 (PTD # 206-167) Dear Mr. Norman, This is a report of Brooks Range Petroleum Corporation's well operations on the Sak River #1 for the period March 30 through Apri15, 2007, inclusive. March 30, 2007 Repair top drive. Directionally drill 8-3/4" hole from 10,685' to 10,876' MD. MWD failed. POH, remove nuclear sources from LWD tools, download tools. March 31, 2007 Finish L/D BHA. Test BOPE to 250 / 5,000 psi. M/LT and load BHA. RIH, breaking circ and testing MWD every 1,500'. April 1, 2007 Drill and slide from 10,876' to 11,440' MD. Apri12, 2007 Drill and slide from 11,440' to 11,880' MD. Apri13, 2007 Drill and slide from 11,880' to 13,030' MD Apri14, 2007 Drill and slide from 13,030' to 13,110' MD TD. CBU. Trip out to 9,010' and back in to TD (ream tight spot from 12,900' to 13,100'). C&C hole and POH. April 5, 2007 POH, L/D BHA. R/U Schlumberger and RIH w/ dipole sonic and FMI logging tools. Tag obstruction at 12,100' . Could not work farther down. Log from 12,100' to surface. L/D logging tools. i ~ • • ~ Mr. John Norman Page 2 If you have any questions or require additional information, please contact me at 258- 3446. Sincerely, For BROO ~ ANGE PETROLEUM CORPORATION ~ Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. cc: Jim Winegarner - Brooks Range ~ ~ MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg ~~~ ~,~ ~~~~t;~`~ DATE; P. I. Supervisor ~ FROM: Jeff Jones SUBJECT: Petroleum Inspector April 9, 2007 P&A Sak River #1 Brooks Range Petroleum PTD 206-167 Exploration April 9, 2007: I traveled to Nabors Rig 27E at Brooks Range Petroleum's Sak River #1 exploratory well site to witness the pressure test of a cement retainer ,/ plug for suspension of this wetl. Dave Sanders was the Brooks Range / Nabors representative for the test today. Mr. Sanders informed me that the retainer was set at 3,950' MD and approx. 38 BBLS of class G cement was squeezed through the retainer and approx. 4 BBLS of the same type cement was pumped on top of the retainer. On my arrival the well bore was pressured up to 1000 PSI and held for 30 minutes with no ,/ significant pressure loss recorded. Summary: I witnessed the successful pressure test of a open hole / cased hole segregation retainer plug for suspension of Brooks Range's exploratory well Sak River #1. Attachments: None Non-Confidential P-A Exp Brooks Range Sak River .doc • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission '~~ ~l in TO: Jim Regg ~~~~~~~ Jj ~Z, ~~? DATE: April 08, 2007 P. I. Supervisor FROM: John Crisp, SUBJECT: Cement Plug Tag Petroleum Inspector Sak River #1 BRPC PTD 206-167 April 08, 2007: I traveled to Brooks Range Petroleum Corporation's Sak River #1 Exploratory well off PBU S Pad to witness the well suspension plug tag. v.-~`~ Cement plug was tagged @ 10,251' MD. Well suspension procedure required plug be no deeper than 10,400' MD. Plugs integrity verified with 20K DP weight ~~ on plug while circulating @ 6 BPM. Plug was tagged 6 times with no movement. Summarv: BRPC's Sak River #1 Well suspension cement plug tagged & integrity verified @ 10,251' MD. Attachments: None. Confidential Cement Plug Tag Sak River .doc ~ ~ 0 o a ~ ~ SARAH PALIN, GOVERNOR ~aa~ca~,7m ~~ ~ V[v~,7 333 W. 7thAVENUE, SUITE 100 COI~TSERQA~`I011T CO1rIIfIIS3I01~ ANCHORAGE, ALASKA 99501-3539 PHQNE (9~7) 279-1433 FAX (907) 276-7542 James Winegarner Vice President: Land 8s External Affairs Brooks Range Petroleum Corporation 1400 W. Benson Blvd, Suite 510 Anchorage, AK 99503 Re: Exploratory, Sak River # 1 Sundry Number: 307-121 Dear Mr. Winegarner: 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. DATED this ! day of April, 2007 Encl. c~Q~' '~~~- Sincerely, D~S ~~ 7 STATE OF ALASKA~k-~"~ RECE~V~D ALAS OIL AND GAS CONSERVATION COMMTSSION ~ APPLICATION FOR SUNDRY APPROVALS aPR. 0 6 2~0~ 20 AAC 25.280 1. Type of Request: Abandon ^ Suspend ^~ Operational shutdown ^ Perforate ^ Waiver ~ Alter casing ~ Repair well ^ Plug Perforations ^ Stimulate ~ Time E~ension harage Change approved program ^ Pull Tubing ~ Perforate New Pool ~ Re-enter Suspended Well ~ 2. Operator Name: 4. Current Well Class: 5. Permit to Drill Number: Brooks Range Petroleum Corporation Development ~ Exploratory ~ 206-167 3. Address: Stratigraphic ~ Service ~ 6. API Number: 1400 W. Benson Blvd, Suite 510, Anchorage, AK 99503 50-029-23336-00-00 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 ^ No ~ Sak River #1 9. Property Designation: 10. KB Elevation (ft): 11. Field/Pool(s): ADL 390431 32.25' Exploratory 12• PRESENT WELL CONDITION SUMMARY Total Depth MD (f[): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 13,110' 11,348' 13,110' 11,348' None None Casing Length Size MD ND Burst Collapse Structural Conductor 80' 13-3/8" 109' 109' n/a n/a Surface 3,993' 9-5/8" 4,025' 3,467' S,750 psi 3,090 psi Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): n/a n/a n/a n/a n/a Packers and SSSV Type: n/a Packers and SSSV MD (ft): n/a 13. Attachments: Description Summary of Proposal Q 14. Well Class after proposed work: Detailed Operations Program ~ BOP Sketch ~ Exploratory Q Development ^ Service ^ 15. Estimated Date for 4/7/2007 16. Well Status after proposed work: Commencing Operations: Oil ~ Gas ^ Plugged ^ Abandoned Q 17. Verbal Approval: Date: WAG ^ GINJ ^ WINJ ^ WDSPL ^ Commission Representative: 18. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact gill Penrose 258-3446 Printed Name James R. Winegarner Title Vice President: Land and External Affairs Signature ~ Phone Date ~/ ~` ~. ~ ~ / 907-339-9965 / COMMISSION USE ONLY Co tions of approval: Notify Commission so that a representative may witness Sundry Number: , ~ l Plug Integrity '~ BOP Test [] Mechanical Integriry Test ^ Location Clearance ~ Other: c , ~^ c c * ~p~t-i~ ~~~~ c~ ~ 0 T~~ ~~J ~ ~~'~CSS ~_ ~ ~-'~.~v~ ~`: e ~ ~~ A~~ ~ Q 2~~~ Subsequent Form Required: ~~ APPROVED BY / ~'~ Approved by: COMMISSIONER THE COMMISSION Date: 7 Form 10-403 Revised 06/2006 U~~r ~ n',!, ~ Submit in Duplicate v IV y ~ ~ Brooks Range Petroleum Corporation Sak River #1 Well Suspension Procedure 1. RIH with +1,000' of 3-1/2" tubing with mule shoe as cementing stinger on drill pipe to TD at 13,110' MD. 2. With the mule at TD, pump 5- 10 barrels of water ahead. ~ 3. Plug #1(Open Hole): Pump 33 bbl cement slurry mixed as follows: ~~ ~"p~ ~a~p~ 156 sacks Class G cement + 0.4% D167 + 0.3% D65 + 0.08°Io B 155 + 0.2% D46 ~-t' ~~ ~ + 5.09 gal/sx water, working time 3:40 hours. ( L 16 cf/sk, 15.8 ppg, assumes hole ~~yr, ~ size is 9") '~ 1 4. Pump 1-2 bbls of water behind. Pull up to 12,600' and circulate out cement above that depth. 5. POH, L/D drill pipe until stinger is at 10,950' MD. 6. Set a viscous mud pill from 10,950' to 10,850' 7. With the mule shoe at 10,850, pump 5- 10 barrels of water ahead. 8. Plug #2 (Open Hole): Pump 36 bbl cement slurry mixed as follows: 172 sacks Class G cement + 0.4% D167 + 0.3% D65 + 0.08°Io B 155 + 0.2°Io D46 + 5.09 gal/sx water, working time 3:40 hours. (1.16 cf/sk, 15.8 ppg, assumes hole size is 9") ~c~,~T'O~ i~`-~~J 9. Pump 1-2 bbls of water behind. Pull up to 10,300' and circulate out cement above that depth. Q~,c-cs~`( ~~~ 10. POOH, L/D cementing stinger and M/LT an 8-3/4" cleanout bit. 11. RIH to the 9-5/8" casing shoe and WOC until the open hole cement plug has had at least 8 hours to cure. ~ 12. RIH and tag up on cement. (AOGCC representative to witness) Cement top should be no deeper than 10,200'. Weight test cement with 10,0001bs on the bit. ~ ~ 13. POOH, laying down all drill pipe except for 4,000' and all of the 3-1/2" cementing stinger. 14. M/LT a 9-5/8" drillable cement retainer on DP and RIH. Set retainer in casing at 3,950'. (AOGCC representative to witness) Do not un-sting from retainer. 15. Plu~ #3 (9-5/S" Casing Shoe): Establish injection rate and pressure. Mix and pump 42 bbls of cement slurry for a casing shoe plug extending from 3,950' to 4,225' mixed as follows: 233 sacks Class G+ 1.0°Io D65 + 1.0% S 1+ 0.2% D46 + 3.86 gaUsx water. Working time: 4:00 hours (1.0 cf/sk, 17.0 ppg, uses 50% excess in open hole) Squeeze 38 bbls cement through the retainer. Un-sting from retainer and dump remaining 4 bbls cement on top of retainer. 16. Pump 1-2 bbls of water behind. Pull up to 3,850' and circulate out cement above that depth. POH, laying down all but 200' of drill pipe in preparation for rig move. 17. Pressure test casing and cement plug to 1,000 psi for ten minutes. 18. P/U a 9-5/8" drillable bridge plug on DP and RIH. Set the bridge plug at 250' RKB. 19. Plug #4 (Surface): With the drill pipe just above the bridge plug, circulate in 19 bbls of ARCTICSET I(0.93 cf/sk, 15.7 ppg) cement slurry for a surface plug. 20. POH with drill pipe and lay it down. Ensure cement fills the 9-5/8" casing to the surface after all drill pipe is pulled from hole. 1 21. N/D BOPE and install dry hole tree on wellhead. Release rig. 22. Clean the location thoroughly so that summertime cleanup will be minimal. ~ ~ SAK RIVER #1 Brooks Range Petroleum Corporation Proposed Suspension 13-3/8" conductor Bridge plug at 250' set C 109' ~ -- RgB w/ permafrost MD/TVD cement to surface 10.6 ppg mud 50' cement on top of retainer ~ Cement retainer at 3,950' MD / 9-5/8", 40#, L-80, BTC 3,392' TVD surf csg set at 4,025' MD, ~~ 3,467' TVD BOC at 4,225' MD / -~ 3,667' TVD 10.6 ppg mud TOC at 10,400' MD / -~ 8,718' TVD TOC at 10,850' MD / --- 9,168' TVD 10.6 ppg mud TOC at 12,700' MD / ---- 10,953' TVD BOC at TD -~ TD @ 13,110' MD/ 11,348' TVD wjp 04/OS/07 ~ Brooks Range Petroleum Corporation Apri16, 2007 ~ ~~~~iV~~ AP ~; ~J 6 2007 Al,ska Oii & ~~~ ~~~~~ Cormnissia~ ktsci~~r~~~ Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7`h Ave., Suite 100 Anchorage, Alaska 99501 RE: Sundry Application to Suspend Brooks Range Petroleum Corp.: Sak River #1(PTD # 206-167) Dear Mr. Norman, Brooks Range Petroleum Corporation proposes to suspend its Sak River #1 well. While no economically significant hydrocarbons were found in this wellbore, Brooks Range wishes to leave the well in a condition to re-enter it and drill a sidetrack from it at a future date following the evaluation of logs and seismic data recently obtained.. There being no hydrocarbon-bearing intervals requiring isolation per AOGCC regulations, two open-hole cement plugs are proposed, one across the Kuparuk-LCU- Miluveach interval and one across the Sag-Shublik-Ivishak interval as indicated on the enclosed wellbore schematic. The wireline and mud logs from this well have been reviewed with your staff for their concurrence on the cemented intervals and our plan to abandon them. The suspension of the Sak River #1 will be accomplished using four cement plugs as indicated on the attached wellbore diagram and procedure. The wellhead will be left intact on the well. Site cleanup and AOGCC approval of site closure will be scheduled for next summer. If you have any questions or require additional information, please contact me at 339- 9965 or Bill Penrose at 258-3446. S incerely, BROOKS RANGE PETROLEUM CORPORATION i ~ , /.~ ~- ... Flnes R. Wineg; ice President - and External Affairs Re: [Fwd: BRPC Sak R. #1 P&A] ~ ~ Subject: Re: [Fwd: BRPC Sak R. #1 P&A] From: Thomas Maunder <tom_maunder@admin.state.ak.us> Date: Fri, 06 Apr 2007 15 31:04 -0800 Ta: Bill Penrose <bitl~7a fairweather.com> CC: Bart Arrnfield <barmfield@brooksrangepetro.com>, AOGCC North Slope Office <aogcc~rudhoe_bay@admin.state.ak.us> Bill, I have examined the sundry. Although the plan is to retain the well for possible future sidetrack, the work will have effectively plugged the well only requiring the wellhead to be cutoff if future plans do not materialize. I will send a copy of the work plan to the Inspectors. As noted in the procedure, please call for the tag of the Kuparuk plug and retainer/surface shoe squeeze. Good luck with the operations. Call or message with any questions. Tom Maunder, PE AOGCC Thomas Maunder wrote, On 4/5/2007 2:31 PM: Bill, Sorry it has taken a bit to get back to you. Please see Steve's note below. I agree with your decision to place a plug across the Kuparuk interval. In addition it is appropriate as Steve notes to place a plug across the Ivishak. From the depths Steve gives, each plug is about the same length. Provided the deep plug goes in without problems, it will not be necessary to tag it. With regard to the Kuparuk plug, there is a little difference in the proposed depths, although the overall interval is roughly the same length. You might check with Steve on his "log" call. Since this plug is being set off bottom, it will need to be tagged. You didn't mention the next plug at the surface shoe. I presurcie it will be via a retainer. If the well is to be retained for sidetrack, then a kill string to below the permafrost with freeze protection should be placed with a BPV left in the tubing hanger. If the well is to be abandoned, then a 150' surface plug with cutoff at least 3' below original grade. Thanks Bill, please call or message with any questions. • Tom Maunder, PE AOGCC Stephen Davies wrote, On 4/5/2007 12:53 PM: Tom, Upon review of the mud log and well log from Sak River No. 1, I agree that there are no hydrocarbon shows in the wellbore. I also agree with the concept of isolating the more prominent, porous intervals from one another. So, in addition to all requirements of 20 AAC 25.112, I recommend placing additinnal open hole cement plugs across the Sag River / Shublik / Ivishak interval from 12,700 to 13110 feet MD and across the Kuparuk~"interval from 10,400 to 10,850 feet MD. Please let me know if I can help further. Steve D. ________ Original Message -------- Subject: BRPC Sak R. #1 P&A Date: Thu, 05 Apr 2007 08:32:41 -0800 From: Bill Penrose <bill@fairweather.com> To: Thomas Maunder <tam maunder@admin.state.ak.us>, Stephen Davies <steve davies@admin.state.ak.us> 1 of 3 4/6/2007 3:31 PM Re: [Fwd: BRPC Sak R. # 1 P&A] ~ ~ Tom and Steve, The cement plug depths I gave you in my pre~ious e-mail were given in TVD. The measured depths proposed are: Top of Plug 1.0~1.00' Bottom of Plug 10,600' Regards, flBill Penrose// Vice President / Drilling Manager Fairweather E&P Services, Inc. 2000 East 88th Ave., Suite 200 Anchorage, Alaska 99507 907-258-3446 -------- Original Message -------- Subject: Brooks Range Sak River #1 Date: Thu, 05 Apr 2007 07:59:43 -0800 From: Bill Penrose <bill@fairweather.com> To: Thomas Maunder <tom maunder@admin.state.ak.us>, Stephen Davies <steve davies@admin.state.ak.us> Tom and Steve, We'll be P&A-ing BRPC's Sak River #1 as there were no hydrocarbons found. We're currently logging - should take only a day or so as we're only running a dipole sonic and VSP. Meanwhile, here are the mud log (in three files) and the composite LWD log for you to examine. I've also included the formation tops as encountered. We see no hydrocarbon shows. However, due to the length of the open hole, a strategically placed open-hole plug is probably called for. We suggest a plug across the Kuparuk interval. Th'is would completely isolate the Kuparuk as well as isolating the deeper Ivishak below the overlying shales between it and the Kuparuk. The cement plug would be 500' in length, extending from 8,400' MD to 8,900' MD. In addition to the open-hole plug we would of course install the required plug at the surface casing shoe and one at the surface. While we're currently pursuing the P&A route right now due to time constraints, you should be aware that BRPC is also considering sidetracking this well (in which case you'l1 receive an app for PTD) or leaving the well suspended to do the sidetrack next year (in which case the P&A sundry would be changed to a Suspend sundry). Meanwhile, would you please look over the logs and this plan and let me know if it looks acceptable to the Commission? //Bill Penrose// Vice President / Drilling Manager Fairweather E&P Services, Inc. 2 of 3 4/6/2007 3:31 PM Re: [Fwd: BRPC Sak R. #1 P&A] ! 2000 East 88th Ave., Suite 20C Anchorage, Alaska 99507 907-258-3440 ~ 3 of 3 4/6/2007 3:31 PM ~ Brt~o~s ~ar~c~~ P~tr~l~um ~c~rp~r~t~~n • RE~~IVED ,Qp~. ~ 2 2Q07 March 30, 2007 Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7`h Ave., Suite 100 Anchorage, Alaska 99501 Al~ska ~il & Ga~ Cans. Commission An~harage RE: Weekly Report of Operations Brooks Range Petroleum Corp.: 5ak River #1(PTD # 206-167) Dear Mr. Norman, This is a report of Brooks Range Petroleum Corporation's well operations on the Sak River #1 for the period March 23 through March 29, 2007, inclusive. March 23, 2007 Repair and test upper IBOP. P/U drill pipe and RIH. CBU and POH, racking stands back in derrick. Repeat. M/L7 rotary steerable BHA. March 24, 2007 P/LT, load and test rotary steerable BHA. RIH while P/LT drill pipe. Tag up at 3,915', circ to even out mud properties. Pressure test casing to 3,000 psi for 30 min. Slip and cut drilling line. Drill cement from 3,915' to FC, drill out FC. Displace hole with new polymer mud system. Drill out shoe @ 4,025' and drill 20' of new hole to 4,056' . Perform FIT to 12.6 ppg EMW at 4,056' MD, 3,476' TVD. Obtain ECD baseline and directionally dri118-3/4" hole from 4,056' to 4,271' MD. March 25, 2007 Directionally drill 8-3/4" hole from 4,271' to 5,219'. CBU, perform LOT to 13.0 ppg EMW. Drill from 5,219' to 6,457'. March 26, 2007 Directionally dri118-3/4" hole from 6,457' to 7,824'. March 27, 2007 Directionally drill 8-3/4" hole from 7,824' to 9,299'. . . Mr. John Norman Page 2 March 28, 2007 Directionally drill 8-3/4" hole from 9,299' to 9,806'. Lost 900 psi pressure. Check surface system, POH looking for washout. Found washout at 22 stands + 1 single. Replace joint and RIH. Drill from 9,806' to 9,962'. Upper washpipe seal failed, repair same. Repair pipe handler. March 29, 2007 Directionally drill 8-3/4" hole from 9,806' to 10,685'. Lost 500 psi pressure. Check surface system, POH looking for washout. Found washout at 9 stands + 1 single. Replace joint and RIH. If you have any questions or require additional information, please contact me at 258- 3446. Sincerely, For BROOKS RANGE PETROLEUM CORPORATION CG, . .~ c Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. cc: Jim Winegarner - Brooks Range , ~ ~ SARAH PAL1N, GOVERNOR ~ASS~ Ou ~TD G~S COI~TSERQ~1'IOi~T COAi~'II551O1~T ' Jim Winegarner Vice President of Land 8~ External Affairs Brooks Range Petroleum Corporation 1400 W. Benson Blvd, Suite 510 Anchorage, AK 99503 Re: Undefined, Sak River # 1 Sundry Number: 307-107 Dear Mr. Winegarner: 333 W. 7th AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Enclosed is the unapproved Application for Sundry Approval relating to the above referenced well. We are returning your application for Sundry Approval unapproved. At Brooks Range request the application was withdrawn. DATED this ~day of April, 2007 Encl. . 1 L>~ ~ ~ (;~`~" c:nairman BRPC Sak River #1 ~ ~ Tom, Yesterday, March 29, Brooks Range Petroleum Corporation submitted an Application for Sundry Approval to change their approved plan to run 7" casing from surFace to TD to a plan to set the 7" as a liner, hung off in the 9-5/8" surface casing. Events over the past 24 hours have resulted in this no longer being the desired option. Please stop processing the Sundry Application as Brooks Range would now prefer to stay with the original plan for 7" casing from surface to TD if it is run at all. Thanks and regards, Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. 2000 East 88th Ave., Suite 200 Anchorage, Alaska 99507 907-258-3446 1 of 1 3/30/2007 2:27 PM • Bro~~ R~n~e P~tr~l~um C ~~~on March 30, 2007 . ~~~~'~'~° ~ ~~~ ~ ~ ~a~~ comrcu~s~n ~I~~k~ t~i1 & ~~s !Gon$• ~~choc~8~ Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7`h Ave., Suite 100 Anchorage, Alaska 99501 RE: Proposed Casing Program Change Brooks Range Petroleum Corp.: Sak River #1(PTD # 206-167) Dear Mr. Norman, Brooks Range Petroleum Corporation hereby applies for Sundry Approval to modify the casing program in the Sak River #1. Currently the permitted well plan calls for a full string of 7" production casing to be set from the surface to the well's proposed TD of 12,978' MD. Brooks Range proposes to replace the full casing string with a production liner consisting of the same specification of 7" pipe hung off on a liner hanger in the 9- 5/8" casing at a depth of approximately 3,700' MD (±300' above the 9-5/8" surface casing shoe) and extending to the well's TD. Setting a liner will allow Brooks Range to sidetrack the well in the 9-5/8" casing above the liner hanger to drill an 8-1/2" delineation hole. An Application for Permit to Drill the delineation sidetrack is being prepared. Attached please find a Form 10-403 Application for Sundry Approval for this change. If you have any questions or require additional information, please contact me at 339-9965 or Bill Penrose at 258-3446. Sincerely, RANGE James R. Winegarner ` Vice President of L d and CORPORATION Affairs ~a~ ~~vJ cc: Bill Penrose - Fairweather STATE OF ALASKA ALA OIL AND GAS CONSERVATION COM SION ~ APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 1. Type of Request: Abandon ^ Suspend ^ Operational shutdown ^ Perforate ^ Waiver ~ e Other ^ ra g C Alter casing ~ Repair well ~ Plug Perforations ~ Stimulate ^ Time E~ension Change approved program Q Pull Tubing ~ Perforate New Pool ~ Re-enter Suspended Wel 2. Operator Name: 4. Current Well Class: 5. Permit to rill Number: Brooks Range Petroleum Corporation Development ~ Exploratory ~ 206-167 3. Address: Stratigraphic ~ Service ~ 6. AP umber: 1400 W. Benson Blvd, Suite 510, Anchorage, AK 99503 50-029-23336 00 00 7. If perforating, closest approach in pool(s) opened by this operation to nearest 8. Well Name and Num r: property line where ownership or landownership changes: Spacing Exception Required? Yes ^ No ~ Sak River #1 9. Property Designation: 10. KB Elevation (ft): 11. Field/Pool : ADL-390431 30' AGL Undefined 12~ PRESENT WELL CONDITION SUMMA Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TV (ft): Plugs (measured): Junk (measured): 12,978' (planned) 11,290' (planned) 12,978' (planned) 11,290' ( nned) None None Casing Length Size MD ND Burst Collapse Structural Conductor g0' i6" 107' 107' N/A N/q Surface 4,052' 9-5/8" L4;d~5' 3,476' S,750 psi 3,090 psi Intermediate ~ Production ~ Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubin ize Tubing Grade: Tubing MD (ft): WA WA ~~ WA WA N/A Packers and SSSV Type: N/A ~ ' Packers and SSSV MD (ft): N/A C~/ 13. Attachments: Description Summary of Pr 14. Well Class after proposed work: Detailed Operations Program ~ BOP Sk Exploratory ^~ Development ^ Service ~ 15. Estimated Date for 07 16. Well Status after proposed work: Commencing Operations: Oil ^~ Gas ^ Plugged ^ Abandoned ^ 17. Verbal Approval: Date• WAG ^ GINJ ^ WINJ ^ WDSPL ~ Commission Representative: 18. I hereby certify that the foregoing is true a d correct to the best of my knowledge. Contact gill Penrose 25&3446 Printe ame es R inegarner Title Vice President of Land and E~cternal Affairs Signature e '~ ~ Date __ , ~~ 907-339-9965 ~~ (`j C ISSION USE ONLY Conditions of approval: Notify C mission so that a representative may witness Sundry Number: O~- v~ Plug Integrity ^ BOP Test ~ Mechanical Integrity Test ^ Location Clearance ^ Other: Subsequent For Required: ` APPROVED BY Approved by: COMMiSSIONER THE COMMISSION Date: 1~ECEIVED MAR 2 9 20Q~ Form 10-403 Revised 06/2006 ~~ r~ i~~ ~^..~ ~ ~~ APR ~i ~ 1007 Submit in Duplicate • • ~ro~~ ~an~~ Petr~um C~rrp~carat~~~ March 23, 2007 Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7th Ave., Suite 100 Anchorage, Alaska 99501 ~G~.sG~~~~ MAR 2 8 2007 Alaska Oil & Gas Cons. Cornmission knchara~~ RE: Weekly Report of Operations Brooks Range Petroleum Corp.: Sak River #1 (PTD # 206-167) Dear Mr. Norman, This is a report of Brooks Range Petroleum Corporation's well operations on the Sak River #1 for the period March 16 through March 22, 2007, inclusive. March 16, 2007 P/LJ and SB 3,595' of DP, HWDP and BHA. Function test diverter and pressure test surface lines to 3,500 psi. Fill hole, tag btm at 104', drill 12-1/4" hole to 311'. Pull into conductor, M/U and test MWD. M/U 8" DC's. RIH, drill 12-1/4" hole to 340'. Flowline packed off w/ gravel. Clear flowline. March 17, 2007 Drill 12-1/4" hole 340' to 394'. Flowline packed off. Clean out flowline, circ to even up mud system properties. RIH, dri11394' to 556'. March 18, 2007 Directionally drill 12-1/4" hole 556' - 2,431'. March 19, 2007 Directionally drill 12-1/4" hole 2,431' - 4,036'. CBU and POH. Back-ream through tight spot 2,100' - 2,054'. Continue POH 2,054' to 1,298' March 20, 2007 Continue POH 1,298' - 306' (wet). RIH to 3,944'. MAD pass 3,944' - 4,036'. CBU, monitor well (static) and POH. Download and L/D BHA. Make dummy run with casing hgr and landing joint to wellhead. R/LT to run casing. Run 9-5/8" casing to 1,850'. i Mr. John Norman Page 2 • March 21, 2007 Run 9-5/8" casing 1,850' - 4,025'. R/U to cement and C&C mud. Cement casing w/ 457 bbls Arcticset Lite lead and 95 bbls Class G tail. Displace w/ mud using rig pumps. Received 300 bbls cmt back at surface. Bump plug w/ 500 psi, check floats - OK. Clear floor, N/D diverter. March 22, 2007 Remove starting head, install wellhead section. N/U BOPE and test same to 250/5,000 psi. If you have any questions or require additional information, please contact me at 258- 3446. Sincerely, For BROOKS RANGE PETROLEUM CORPORATION / , ~. Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. cc: Jim Winegarner - Brooks Range ~ • • Br~~s ~anc~ P~tr~l~~r~ ~c~rp~~a~~n March 16, 2007 Mr. John Norman, Chair Alaska Oil and Gas Conservation Commission 333 West 7~' Ave., Suite 100 Anchorage, Alaska 99501 ~ECEIVED MAR 2 2 ~~~~ pi~ska Oil & Gas Cons. Comm+ssion knchorage RE: Weekly Report of Operations Brooks Range Petroleum Corp.: Sak River #1(PTD # 206-167) Dear Mr. Norman, This is a report of Brooks Range Petroleum Corporation's well operations on the Sak River #1 for the period March 11 through March 15, 2007, inclusive. March 11, 2007 Accepted rig at previous Operator's drilling location. Haul camp to Sak R. location. Separate rig components and prepare subbase for road travel. Move pump module, pit module and motor unit to Sak R. location. March 12, 2007 Move subbase/derrick and pipe sheds to Sak R. location. Prepare shops for move. March 13, 2007 Set subbase/derrick over conductor and spot remaining rig components. R/LT power and electrical connections. March 14, 2007 Haul shop and satellite camp to location and set in place. Set fuel tank. Install wellhead on conductor. Fire up heaters on pipe shed. N/U diverter. Take on mud into pits. March 15, 2007 Finish N/LJ diverter. Take on additional mud. P/LT and SB DP and HWDP. Set mouse hole, R/LJ pipe skate rails, prepare top drive. If you have any questions or require additional information, please contact me at 258- 3446. . Mr. John Norman Page 2 Sincerely, For BROOKS RANGE PETROLEUM CORPORATION ;'i~ . ~ Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. ~ cc: Jim Winegarner - Brooks Range RE: BI~PC Sak R. # 1 LOT and reg citations ~ ~ Thanks, Tom. This is exactly what I was looking for. Enjoy your Seward's Day! Regards, Bill Penrose Vice President / Drilling Manager Fairweather E&P Services, Inc. 2000 East 88th Ave., Suite 200 Anchorage, Alaska 99507 907-25$-3446 -----Original Message----- From: Thomas Maunder [mailto:~om r.t:~ur:_i~~r_:~d~in.stat`.ak,~<s] _ ..................._..............._._........__....................._.... __ _ ...._.._.........._.......__.._._.........._................._.._._.. __ __.... Sent: Monday, March 26, 2007 9:31 AM To: Bill Penrose Subject: Re: BRPC Sak R. #1 LOT and reg citations Hi Bill, As we discussed, regulation 20 AAC 25.030 (f) applies. The regulation states, "(f) Except for through-tubing drilling, a formation integrity test must be performed if BOPE is installed on a casing. The test must be performed to a predetermined equivalent mud weight, leak-off, or fracture pressure as specified in the application for the Permit to Drill. The test must be conducted after drilling out of the casing shoe into at least 20 feet but not more than 50 feet of new formation. The test results must demonstrate that the integrity of the casing shoe is sufficient to contain anticipated wellbore pressures identified in the application for the Permit to Drill. The test procedure followed and the data from the test and any subsequent tests of the formation must be recorded as required by 20 AAC 25.070(1) <h~tp;/1wi~a-w le~~s.state.t~}c.us/cgi-b-_i/folioy~a.dll/aac/qaery `~~~vTJN"P:`~~7 _ _ . _.... -_ _. 20+aac+25o212E070o27%5D/doc/%7B@1%7D?firsthit> ." Either a LOT or FIT is acceptable, although I believe the plan in the permit did state LOT. With regard to BOP training, the citation is 20 AAC 25.527 (d). The regulation states, "(d) A toolpusher, driller or functional equivalent, or person-in-charge who participates in drilling operations or in workover operations involving the installation or removal of jointed tubulars must have received formal well control training sufficient to ensure the competent performance of the person's well control duties. The commission will recognize training and certification in a drilling well control curriculum by any of the following entities as meeting the requirements of this subsection: <>(1) L7nited States Department of the Interior, Minerals Management Service; (2) International Association of Drilling Contractors; (3) International Well Control Forum; <> (4) International Alliance for Well Control. Hope this helps. Call or message with any questions. Tom Maunder, PE AOGCC Bill Penrose wrote, On 3/25/2007 10:13 AM: Tom, 1 of 2 3/26/2007 10:03 AM RE: BRPC Sak R. # 1 LOT and reg citations ~ ~ This is to let you know of a deviation from the well plan for the Brooks Range Sak River #1 well. We had planned to conduct a leak-off test just below the shoe of the surface casing (4,025' MD, 3,464' TVD) in this well, but the drilling supervisor forgot and ran an FIT instead (FIT = 12.6 ppg EMW), then commenced drilling ahead. Upon discovering the oversight, drilling was ordered stopped at 5,100' MD, 4,323' TVD and a leak-off test conducted. Leak-off occurred at 600 psi ' with 9.7 ppg mud in the hole. Assuming leak-off occurred at the shoe, a frac gradient there of 13.0 ppg EMW is indicated. At the worst case, ' leak-off at the bit, the indicated frac gradient is 12.4 ppg EMW. Since the earlier FIT at the shoe held at 12.6 ppg EMw, it appears the LOT probably does indicate a shoe leak-off. On the strength of this, we have resumed drilling. Please let me know if the Commission wants us to do otherwise. I'll be on my cell phone (250-3113). ' Regards, ', //Bill Penrose// , Vice President / Drilling Manager ', Fairweather E&P Services, Inc. 2000 East 88th Ave., Suite 200 , Anchorage, Alaska 99507 ' 907-258-3446 2 of 2 3/26/2007 10:03 AM _ srooks ~3ange Petroleum - North Shore #1 Exploration Well Surfac... _ ~ ~ Tom/Art: Attached are As-Builts that show our North Shore #1 and Sak River #1 surface locations as staked. The lease line offsets for the well locations vary slightly from the Permit To Drill numbers we submitted. For example, the Sak River # 1 northing is 51' different and the easting is 5' different. This email is to notify you of the differences and that we will use the As-Built offsets in ali future work. Thanks, Douglas S. Hastings V.P. Exploration Brooks Range Petroleum 1400 W Benson St., Suite 510 Anchorage AK 99503 (907)339-9965 Content-Description: 1247394078-North Shore As_Built Survey.pdf ' INorth_Shore As_Built_Survey.pdf Content-Type: application/pdf ' Content-Encoding: base64 ' Content-Description: 422290057-Sak River As_Built Survey.pdf '.Sak River_As_Built Survey.pdf' Content-Type: application/pdf ' Content-Encoding: base64 ' ~~ sv - c~ - a333 ~ -~6 ~b~-i~~ 1 of 1 1/23/2007 9:11 AM r~ ~ ORIGINAL SUBMISSION DATE_ 01-16-07 SCALE: 1" = 200' aarE ot5cmrnaN atv onTC oescRwnon SHEET: 1 OF t NOTES: THIS 1) COORDINATES SHOWN HEREON, BASED UPON FIELD OBSERVATIONS Barrow PROJECT~ BEAUFORT SEA CONDUCTED JANUARY 4, 2007 2) ALL DISTANCES, COORDINATES AND ELEVATIONS ARE IN U.S. SURVEY 1 Kaktovik FEET ~ ~ 3) PROTRACTED SECTION LINES SHOWN HEREON ARE CALCULATED FROM UNIT D Nuiqsut Deadhorse E STATES RECTANGULAR SURVEY RECORDS AND ARE APROXIMATE i~ ' M ~~ ~~ .u .x ;, ~ ~ ~y ~ ~ ~~,,~ ~ , ~ ~ ~ ;~ ~ ~ fi$, ~.~: ~ ~u~ ~ 4) ELEVATIONS SHOWN HEREON BASED UPON ALASKA GEOID O6 (NAVD 68) ~ ~ ~ ~ ~1 t .s v~ ~ s~ ~~ xa _, ~ r u ~~ r ~ ~ ` ~ ~ ~ ~ ~ 5) NAD 83 VALUES SHOWN HEREON DERIVED FROM CORPSCON 6.0 '~ +,~ ~ j& .~.,~ ~ t - ,~ r"~ -,~. ~ x~ ~" x~ 'X ~~ ~ ~ ~ ~~~1~~ \ ~ ` "~` 's~' ~ ~ ~ ~ ~~ ~ n ~ , ~ ~ ~3'Y ~ \~: ~ ~ ~~ ~~ . ,r\ t*~ -~~ ~~'a ~~ p ~ ~' ~ ~ ~ ? '~" ` ~, v ' ~ ~~ ~ ~ , , a ~ , - .~,~~._ r~~~,~ y ~~ . . =x ~' ~ ~ ~ , ,;. ~ ~ ,~ ~ ~~.~ ~ g ~ ~ x: t x , v,~~ , •~~~a~~~~.~,.~`~`.` an Ukpeagvik Inupiat Corporation Company VICINITY MAP - NOT TO SCALE AS -B U I LT D RAWI N G LEGEND O F SAK RIVE R PAD ~, 6~~ O.D. STEEL CONDUCTOR T 13 N, R 12 E, UM SECTION 35 T 12 N, R 12 E, UM SECTION 1 ~ CONDUCTOR Z LOCATED WITHIN ~g6 ,, T. 12 N., R. 12 E., U.M., ~~, o ioo zoo SECTION 1 ~ ~ NAD 27, ZONE 4 SCALE IN FEET ~ ~ ~ ~" = zoo' LAT: 70°25'29.48742" N . 9 s ~ LONG: 148°58'04.73320" W +j~ ~ F 5~ s N = 6,006,061.0 ~ ~. E = 626,647.0 NAD 83, ZONE 4 N = 6,005,814J E = 1,766,680.3.3 ~ ~ ~~9 ~ q , g9, ` ' PAD ELEV = 15.0' '9~ <~ '~ I f1 r. ~p 1\\~~\\ ~ ~F A~ ~ s ~ ° ° ~~ '~s 11 ' ~°~ ~`~~ P° ~ W w ~ ~~P' ' ~~ ~~ `~~`~ ~ r Q ~~ j*: 49TM ~.* / ~G~ ~ ~ //~ • w I w ~1~~.~ii~~T.-r+-r,F~. .'./~~C , ~ "~ ~ ~'• KENNETH J. PINARD ~ ~ / I ~ ~ 3s~ ~ ~ r ` ~~,1. . No.11545 , • '~~ ~ zIZ +~ `~9Fp~'••....••p5~~,~ PROfE l~ ~~~~ l ~ SSroNp I N N '~ ~ \\\"``~ ~ H H TO 1625~ NORTH PER 12 AAC 36.111 ALL MAPPING qND GEOREFERENCED DATA ttJCLW WCa ApU1SIT10N OF . FIELD DATA WAS PERFORMED UNDERTHE DIRECT SHORE PAD SUPEF2VISIONOFAPftOFES510N/LLLqNDSURVEVOR LICENSED BY THE STA7E ~ ALASKq AS-BUILT DRAWING OF SAK RIVER PAD TOWNSHIP 12 NORTH, RANGE 12 EAST, UMIAT MERIDIAN, ALASKA BROOKS RANGE PETROLEUM DRAWN BY: LHH CHECKED BY: KJP W.O. No: 2006-240 0 a N l0 / ~ 3 v ~ ~ ~ 0 ~ 0 o~ N~ ~I ~~ Z I o~ Q.. U ~ o~ ~- z1 a1 ~Q o~ ~ ~ ~ ~_r -. ~ s_ _~, ~.~. ~ _~ ~r ~ ~ ~~ - r ~~, - ~-~~ ~~.~i ~~ ~ir~ COleT3EIt'QA7l`IO~T COAiDII5SIOI~T ' James Winegarner Vice President of Land 8v External Affairs Brooks Range Petroleum Corporation 1400 W. Benson Blvd. Suite 510 Anchorage, AK 99503 • SARAH P,4LlN, GOVERNOR 333 W. 7th AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Re: Sak River 1 Brooks Range Petroleum Corporation Permit No: 206-167 Surface Location: 1900' FNL, 1630' FEL, SEC. 1, T 12N, R 12E, UM Bottomhole Location: 1684' FSL, 1089' FWL, SEC. 36, T 13N, R 12E, UM Dear Mr. Winegarner: Enclosed is the approved application for permit to drill the above referenced exploration well. This permit to drill does not exempt you from obtaining additional permits or approvals required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. 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. Please note the following: 1. All dry ditch sample sets submitted to the Commission must be in no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. 2. Well testing operations require separate Commission approval. Prior to this well being tested, those plans most be submitted to the Commission via Form 10-403. .. ~ Permit No. 206-167 ~ ~ Page 2 of 2 January 19, 2007 Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission speci~cally authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Please provide at least twenty- four (24) hours notice for a representative of the Commission to witness any required test. Contact the Commission's petroleum ~eld inspector at (907) 659- 3607 (pager). Sincerely, Dan T. Seamount Commissioner DATED this~ day of January, 2007 cc: Department of Fish 8v Game, Habitat Section w/ o encl. Department of Environmental Conservation w/o encl. ~ STATE OF ALASKA ~ /~/~/ AL.~ OIL AND GAS CONSERVATION COM ~v~ION U ~:0~ PERMIT TO DRILL ~...~~`,~ /-~ 20 AAC 25.005 1a. Type of Work: Drill Q Redrill ~ Re-entry ~ 1b. Current Well Class: Exploratory Q Stratigraphic Test ~ Service ~ Multiple Zone ~ Development Oil ~ Development Gas ~ Single Zone ~ 1c. Spec'rfy if well is proposed for: Coalbed Methane ~ Gas Hydrates ~ Shale Gas ^ 2. Operator Name: Brooks Range Petroleum Corporation 5. Bond: Blanket ~ Single Well Q Bond No. LPM8842179 ~ 11. Well Name and Number: Sak River 1 ~ 3. Address: 1400 W. Benson Blvd. Suite 510, Mchorage, Alaska 99503 6. Proposed Depth: MD: 12978 ' N~~ 11290 12. Field/Pool(s): Undefined ~ 4a. Location of Well (Govemmental Section): Surface 1900' FNL 8 1630' FEL Section 1- T12N - R12E, UM - 7. Property Designation: ADL,390431 ' Top of Productive Horizon: Not Applicable 8. Land Use Permit: LAS24983 13. Approximate Spud Date: March 1 2007 ~ Total Depth: 1684' FSL & 1089' FWL Section 36 - T73N - R12E, UM , 9. Acres in Property: , 2,560 ' 14. Distance to Nearest P~~PertY~ 1,089 ~ 4b. Location of Well (State Base Plane Coordinates): Surface: X- 626,647 - Y- 6,006,061 - Zone- 10. KB Elevation ~ (Height above GL): ~ feet 15. Distance to Nearest Well Within Pool: $~630~ 16. Deviated wells: Kickoff depth: 500 • feet Maximum Hole Angle: 37.4 - degrees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 5577 • Surface: 2077 ' 18. Casing Program: Specfications Top - Setting Depth - Bottom Cement Quantity, c.f. or sacks Hole Casing Weight Grade Coupling Length MD ND MD TVD (including stage data) 24 16 0.495 WT NA Weld 80 27 27 107 107 140 CF Artic Set 12.25 9.625 40 L-80 BTC-M 4002 25 25 4027 ~ 3478 ' S41 sx ArticSet Lite, 435 sx G 875 7.000 26 L-80 BTC-M 12955 23 23 12978 11290 • 793 sxs Class G 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 ' e Surface Intermediate ~j~gjp(~ Production Liner PerForation Depth MD (ft): Pertoration Depth TVD (ft): 20. Attachments: Filing Fee Q BOP Sketch Q Drilling Program ~ Time v. Depth Plot ^~ Shallow Hazard Analysis Q Property Plat ^~ Diverter Sketch ^~ Seabed Report ^ Drilling Fluid Program ^~ 20 AAC 25.050 requirements ^Q 21. Verbal Approval: Commission Representative: 22. I hereby certify that the foregoing is true and correct. Printed Name ~ py~ ~S ~ . ~//~I~ ,~}icql(~- a Signature `%(/ Date 4/ p p Contact ~ ~),~ r,,_ Title ~ ~r I ,,~T ~ ~.~ p ~ l ~ Phone 0'7 3~ - ~,j~ Date ~ Q~ Q Commission Use Only Permit to Drill Number: 0.~~6 - J~ ~ API Nu er: 50-d~ -~~~~,6~0 d'~ Permit Approval Date: •( . ~ See cover letter for other requirements. Conditions of a roval : If box is checked, well may not be used to expiore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales: Other: Samples req'd: Yes~ No^ Mud log req'd: Yes[~ No0 ~~~ ~~ 1~ `~S~ 4~ 1 Cahtt~C._~ HZS measures: Yes[~ No^ Directional svy req'd: Yes[~NoO e P ~ APPROVED BY THE COMMISSION DATE: , COMMISSIONER Form 10-401 Revised 12/ 05 ~~ I~ i~ A L V J Submit in Duplicate ~-S i ~ Brooks Range Petroleum Corporation a subsicliary qj d G'CC, LLC January 9, 2007 ~~~E~v~D ~A-v a ~ 2007 Art Saltmarsh Alaska Oil and Gas Conservation Commission 333 W. 7t" Avenue, Suite 100 Anchorage, AK 99501 Art; Re: Revised Sak River-1 Drilling Pro r~m l~laska Oi{ & Gas Gons. Commission ~nchorage Please find enclosed a revised version of the Sak River-1 drilling plan with revisior~s that were requested by Bob Crandall just before Christmas. The revisions are highlighted in yellow to make them easier to spot. Also enclosed is the revised Permit to Drill (Form10-401) with all the necessary corrections. Please let me know if you have any questions about the changes. I can be reached at my office (907-865-5803) or on my cell (907-317-2329). Thanks, ~. r' ~~ Larry J. Smith f~r Doug S. Hastings VP of Exploration I~10(1 6~est Aenson B,n:~lercirct, Suit«~ ~IQ. Anchorq~e. .dlnskn ~I9~03 7e1: 9Q7.339.9965 Far: 90,'.3399961 • ~ Brooks Ranae Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • Brooks Range Petroleum Corporation a subsidary o/AVCG. LLC Brooks Range Petroleum Corporation A subsidiary of AVCG, LLC Sak River No.1 ("SR1") Ivishak Exploration Well ~ Nabors Alaska Rig 16E December 2006 ~ 02006 Prepared by Signa Engineering Corp Page 1 Drilling Program • • Brooks Ranyp Petrole~m a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • 6rooks Range Petroleum Corporation a suDSKliary ol AVCG. LLC Brooks Range Petroleum Corporation A subsidiary of AVCG, LLC Sak River No.1 ("SR1") Ivishak Exploration Well Drilling Program ~ ~_ ~ l ;~' ~. ~r ~" u ~ . ~ ~;~ ;r~ ~'~. ~` '~'° $- + ~. . - ~ `M . ~- '~I~/a~~~~~~.~~ _~ ~ ~ Nabors Alaska Rig 16E December 2006 ~ ~02006 Prepared by Signa Engineering Corp Page 1 ! ~ . • • Btooks Ranqe Petroleum a subsidia p~ of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 1 INTRODUCTION ....................................................................................................... 4 2 GENERAL INFORMATION ....................................................................................... 5 2.1 WELL INFORMATION ...............................................................................................................5 2.2 LOCATION PLAT .................................................................................................................... ..6 2.3 WELL MONTAGE .................................................................................................................. ..7 2.4 OFFSET INFORMATION .......................................................................................................... .. 8 2.5 DRILLING RISK ASSESSMENT ................................................................................................ 1 O 2.6 GENERAL WELL PLAN .......................................................................................................... 11 2.7 DIRECTIONS TO LOCATION .................................................................................................... 13 3 GEOLOGY & MAPS ................................................................................................14 3.1 FORMATION TOPS .................................................................................................................14 4 TIME & COST ESTIMATE .......................................................................................15 4.1 DEPTH VERSUS DAYS ...........................................................................................................15 5 DETAILED OPERATIONS PROCEDURE ...............................................................16 5.1 PIUG AND ABANDONMENT PROCEDURE .................................................................................16 5.2 WELL TESTING ....................................................................................................................17 6 WELL PATH DESIGN ..............................................................................................18 6.1 DESCRIPTION .......................................................................................................................18 6.2 SURVEYING ..........................................................................................................................18 6.3 SPERRY DESIGNS ................................................................................................................1$ 6.4 WELL PROXIMtTY .................................................................................................................19 7 DRILLING F~UIDS AND PRESSURE GRADIENTS ............................................... 20 7.1 PORE PRESSURE ................................................ 7.2 FRAC GRADIENT 8~ LEAK OFF TESTS .................... 7.3 HOLE STABILITY .................................................. 7.4 WELL PRESSURE DESIGN .................................... 7.5 TEMPERATt1RE ................................................... 7.6 DRILLING FLUIDS PROGRAM ................................ 7.7 SO~IDS & FLUID WASTE DISPOSAL ........................ ............................................................. 20 ............................................................. 21 ............................................................. 22 ............................................................. 22 ............................................................. 23 ............................................................. 24 ............................................................. 28 8 CASING DESIGN .................................................................................................... 29 8.1 PLANNED CASiNG PROGRAM ................................................................................................29 8.2 SAFETY FACTORS...••••••••••• ..................................................................................................29 8.3 16" CONDUCTOR CASING ......................................................................................................30 02006 Prepared by Signa Engineering Corp Page 2 ~ ~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • 8.4 9 5/8" SURFACE CASING ....................................................................................................... 30 8.5 7'~ PRODUCTION CASING ....................................................................................................... 32 9 CEMENT DESIGN ................................................................................................... 34 9.1 9 5/8" SURFACE CASING CEMENTING DETAIL ......................................................................... 34 9.2 7" PRODUCTION CASING CEMENTING DETAIL .......................................................................... 36 9.3 ABANDONMENT CEMENTING ................................................................................................. 38 10 EVALUATION PROGRAM ...................................................................................... 39 10.1 OPEN HOLE LOGGING ......................................................................................................... 39 10.2 CONVENTIONAL CORING ..................................................................................................... 39 10.3 MUD LOGGING ................................................................................................................... 39 11 WELL CONTROL .................................................................................................... 40 11.1 MAXIMUM ANTICIPATED SURFACE PRESSURE CALCULATIONS ............................................... 40 11.2 GENERAL WELL CONTROL PLAN .......................................................................................... 40 11.3 BOP DRILLS .................................................................................................................... 41 11.3.1 KICK WHIIE TRIPPING ..................................................................................................................... 41 11.3.2 KICK WHILE DRILLING ..................................................................................................................... 41 11.3.3 DIVERTER DRILL ............................................................................................................................. 42 11.3.4 SLOW CIRCULATING RATES ............................................................................................................. 42 ~ 11.4 KICK DETECTION ............................................................................................................... 42 11.5 WELL SHUT IN METHODS ................................................................................................... 44 11.5.1 DIVERTING ...................................................................................................................................... 44 11.5.2 BOP FAST SHUT-IN ........................................................................................................................ 44 11.5.3 SHUT-IN PERIOD ............................................................................................................................. 44 11.5.4 FLOW CHECKS ................................................................................................................................. 45 11.6 KILL METHODS ................................................................................................................... 45 11.F.1 WAIT AND WEIGHT METHOD ............................................................................................................ 45 11.6.2 THE DRILLERS METHOD .................................................................................................................. 45 11.7 WELLHEAD ......................................................................................................................... 46 11.8 DIVERTER SCHEMATIC ........................................................................................................ 47 11.9 BOP STACK ........................................................................................................................ 48 11.10 CHOKE MANIFOLD ............................................................................................................. 49 12 RIG 50 12.1 RIG SPECIFICATIONS ..........................................................................................................50 13 GAS DETECTION ................................................................................................... 51 ~ LJ 02006 Prepared by Signa Engineering Corp Page 3 ~ ~ Brooks Ranye Petroleum a subsidiarv of AVGG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska . 1 Introduction Sak River Well 1 will be drilled from an ice pad near Gwydyr Bay less than 1000' from the coast line. The well will be directionally drilled to the northeast on a 45.8 degree azimuth to reach target zones 5,259' from the surface location. To accomplish this, the well will be kicked off at 500' ~from surface, angle built to 37.4 degrees and tangent held to a total measured depth of 12,978' '(11,290' ND): The "S" shaped well is dropped to vertical at 10,378' MD (8,690' ND) prior to penetrating the Kuparuk C sand. The lower 2,600' MD of the wellbore will then be drilled vertical through the Kuparuk, Kingak and Ivishak formations. ~ Surface location will be located in the northeast corner of Section 1, T12N, R12E and bottomhole location will be in Section 36, ~13N, R12E. Projected commencement of the drilling operation is mid January 2007. After drilling to total depth and evaluating the hole, the well will be abandoned or 7" production casing set and the well production tested. Nabors Rig 16E, a 2000 HP Dreco Slingshot design, will be used to drill the well. ~ L~ 02006 Prepared by Signa Engineering Corp Page 4 ~ ~ Brooks Range Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 2 General information 2.1 WELL INFORMATION i . Sak River 1 WeII Fnformation Operator Brooks Range Petroleum Corporation Well Name Sak River 1 Well Type Directional Exploration AOGCC Permit Number To be assigned API Number To be assigned State Alaska Surface Location Section 1- T12N - R12E ° Surf Dist from Section Lines 1900' FNL and 1630' FEL ~ BHL Loc Section 36 - T13N - R12E BHL Dist from Section Lines 1684' FSL and 1089' FWL Map System US State Plane 1927 ~ System Datum Mean Sea Level Geo System Nad 1927 (NADCON CONUS) ° Map Zone Alaska Zone 04 , Surf Northing Coordinate 6,006,061 ~ Surf Easting Coordinate 626,647 ~ BHL Northing Coordinate 6,009,792 BHL Easting Coordinate 630,356 Azimuth 45.8° Vertical Section 5,259' Area Gurydyr Bay Objective Kuparuk C, Triassic ~ Total Depth (MD) 12,978 ~ Total Depth (TVD) 11,290 - Elevation 10' GL, 40' RKB (Estimated) ~` Rig Nabors Alaska 16E TD BHST (Deg F) 268 °F TD BHP (psi) 5577 psi 02006 Prepared by Signa Engineering Corp Page 5 ~ • Brooks Ranae Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Driiling Program Gwydyr Bay Area, Alaska . 2.2 LOCATION PLAT THIS NOTES: Barrowf y pROJECT 1) COORDINAiLS SHONTI I#REON. BASEU UP6N GARMIN fPS OBSERVATqN ~ ~.% ~'~' ~ ~ ~~ ~ ~ ~ ,kr f f ~ l _ Kaktovik 2~ ALL OISTANCES ANO ELEVATiONS ARE pJ U.S. SURVEY PEET * ~ • ~ __- y~', " ~- Nuiqsut 3) PROTRACTED SECT~ON LWES SHOWh HEREON ARE APPftO%IMATE AYD FOR REFERENCE ONLV 4i RIG PAD AREA STAKED t8' ABOVE HIGHEST POIV7 . l . 1 •; n SJ EAST SID"c OF SAK RNER PI~p IS GRFATFF2 iHAN S(X~ Fhh I f ROM SFIOREUHE ~ o I"~ > ` . j PA,~ : "°••. ~ • .,, It " `"""""''^'W a~~Uwr.upvAln,;,lalCoinoreUonCnn~nry VICINITYMAP-NOTTOSCALE SAK RIVER PAD T. t 2 N.. R. t 2 E. SECTION t • 6 ~ ~} a `~ ~ ~,~ .\ `V- = ~ ~ _\ ~~ . i ~! z .• y ~J. z ~ 'ir. ~~ . ! ~' ~,~ .. / •`~~ i LEOEND ~ ~~~ . ..-' s r.c;.r ~.~r~; ., _. ' 6' SP1KE W/CRCSS IAiH ~ ~ RIG PAD s ~o NAD "17 ZONE 4 ,o. '~. WELL (`~ LAi'.7U~24'CJ.S V l. CN~G: 148' S8'04.7' '.V N = 6 006.06Q.99 E= fiZK 6t 7. W ~ NE CORNER OF PAD I A f: 70-~ 75 3T.4' N I (NIG' 14H'S7'!N.!Y W N = u.l;l~ft,31i3.?i) ~ E = f 2G.R~T.F2 . ~ `, SE CORNER OF PAD ~ ~ , i nr: io'>ti.~x.~s *~ LONG: ta8' 5T,2,r• W . . N - 6.005.944.FiU E - 627.08'~,37 i~'''~. : NW CORNER OP PAD LAT: 7Q~ 2fi 2A.5" 4 RP-2 ~' LONG: 148' SfS' 2.3' YY N - 6.OG6A89.75 F~. = 6T6.3~.3? SW CORNER OF PAD LAT: 70°2:i 25.T N i oNC: ~+x•sa~+s w N = 6. WS.671.1 S E: = fi'IF; 602.77 AS STAKED DRAWING Of SAK RIVER PAD ALPINE. AlA5KA f I I TO '~ NORTH SHORC PA~ ~ 1 . i \ `~~ BROOKS RANGE PETROLEUM • =~r;.•r:r. ~7: _ -t-i i :>r i - - ~i~_':,=D e'. v_= ~`:;; ,.•, ~c:;6 ;'•,'2 02006 Prepared by Signa Engineering Corp Page 6 ! • ~ u C~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.3 WELL MONTAGE i.i,c ' i'~~ Drilling Montage N e Field: Gwydyr Bay Surtace 6,006,061 626,647 Well: Sak River 1 BHL 6,009,792 s3o,sse State: Alaska ~ws 45.8 deg I 5259 feet Formatbn Depth ( RKB ) Casing Program ~ ~ ~ ~ Dev Azimuth Mud Pore Frac md (R) Nd (R) 0 ~ 3 ; °~ Deg Deg Welght Pres:ure Pressuro -- 0 -- fi o ---- -. - -- - ----~ KOP 500 500 ~ ~ -- ~j ~ 100U 995 f C 14.$ 4$.8 m o ~ m _ o x ~ ~ ~ m _ --- -Pertnafrost 7656 1590 A p ~ ~ ~ ' 3 E 20D0 1868 a m o p o -°~ 37.4 45.8 r O z $ ~ ~ p ~ J ~ ~ ~ R' ~ ._ ~ (7 n _ - _ --- _ 3000 _ 2662 $ Q 37.4 /5.8- _- --- -- - - - m a g a ~ - M 9 5/B' Ca 4028 3478 37.4 45.8 9.5 B.6 13.6 LOT - - -- - I . I ---- -- - - --- 5000 --...-- 4249 --- I ~ ~----37.4 45.8 -- -- - I - ------ ------- - I I 6000 5043 ~ ~ 37.4 45.8 j a o ~ 9.8 8.6 ~ v $ _ ~ o n _ K u • --- 7000 5838 ~ ~ w o °a - 37.4 45.8 I • c a ~ ~ y n - - 9J ---8.6 -- - -- --. ' U ~ o m _ _- _ _ . _-- - I O O ~ L ' ~ ~ ._-_ ~ _ O A r Z (~ _ __. 8000 6631 I = ~ u v ~ $ 37.4 45.8 8.6 I ~ ~ A o ~ C ,_ m ~ m Q v 9, 9.B 8.6 _- ' _- -- j • ~ _ c ~ m N ~, ; 3 s k W c1 _ --- __ -- - SIaA Dro 9130 7528 ~ o o w o O - 37.4 45.8 70.0 8.6 . ~ ~ ~ a ~ a . - --- - - HRZ 9400 ----- 9607 7754 ---- - 7940 ~ ~ • `oa ~? o a ~ o 29.3 23.1 45.8 - -- 45.8 - ~ --_ 702 ._.__ 8.9 ...__ . . , n $ 10000 8314 ~ ^ p 11.3 45.8 10.4 9.6 ~ c ; Kupan~k C 70378 8880 ~ ~ 0.0 0.0 10.5 9.6 - I 11000 9311 ~ --- I IGn k__ . ~ 17583 -- --- 9895 ---- I . ~ ~--._--_. 10.5 _------ 9.6 - __- . ._.. 12000 10312 0.0 0.0 , __ ~ 70.5 9.6 ~ Sag Rhx 72568 ~ ~-~- 10880 ~ 0.0 0.0 Ivishak 12738 ~ 11050 0.0 0.0 9.6 TD 72978 17290 I 0.0 0.0 10.5 75.7 Sak River 1 Well Montage 02006 Prepared by Signa Engineering Corp Page 7 ~ ~ ~rooks Ranye Petroleum a su6sidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 2.4 OFFSET lNFORMAT/ON Twenty exploration weils drilied befinreen 1969 and 2000 were reviewed. The primary source of data was the Alaskan Oil & Gas Conservation Commission website. Half of the wells were within 5 miles of the SR1 location. The remainder consisted mainly of delineation wells in the Northstar Field (7 miles to NE) and wells drilled to the Midnight Sun pool on the northeast side of the Prudhoe Bay Unit (8 miles to the SE). Additional wells on PBU Pad S have been examined. A detailed mechanical cross section was prepared for these wells and is included in the Appendix. Due to the extent of the information, discussion of the details of all the wells is beyond the scope of this report; however, a review of this data is available if needed. Intermediate casing was not always set and when set, was used primarily for testing either the Kuparuk or Ivishak. Generally the wells spent considerable time cutting conventional cores which sometimes doubled the amount of time required to reach TD. Comparatively speaking, wells reviewed encountered fewer drilling problems that normally seen in a review of this type in other areas. The closest offset well to SR1 is the Cities Service Gwydyr Bay State A-1 drilled in 1974 to a depth of 12210' MD with maximum deviation of 29 degrees. It was the most problematic well reviewed in the study. Problems occurred when setting 13 3/8" casing ~ at 2681' due to a centralizer coming apart and a leak in the wellhead. A LSND mud system was used; however, solids control was very poor and solids concentrations were abnormally high in the mud. File notes documented that the rig ran out of fresh water make up fluid for several days which aggravated the solids problem in the mud. Stuck pipe problems followed by hole pack off and mud losses occurred in the Kuparuk. After nine days of fishing, drilling resumed and the well was drilled through the Kingak shale to 12,005' with 10.4 ppg. The pipe stuck on a trip in the hole and the drill pipe parted while jarring. After recovering the fish, 9 5/8" casing was set. Although drilling performance was poor for this well due to poor hole conditions, shale instability and resulting breakout was probably not the cause of the problem. The open hole was exposed to a very poor mud system for an excessive amount of time. Very poor drilling practices were followed. Additionally, the rig was a kelly type rig and unable to efficiently handle the hole problems when compared to today's top drive equipped rigs. 2.3 PRUDHOE BAY UNIT - MIDNIGHT SUN POOL The Midnight Sun Oil pool was discovered by BP in 1997 with their Sam #1 we(I (later re named PBU E-100. With 4441' MD of 9 5/8" surface casing, Sam 1 was drilled at 55 degrees to 12,906' with 10.4 ppg 3% KCL LSND mud where 7" casing was set in 8'/2" hole in the top of the Sag River. Kingak shale was drilled without problems with 10.4 ~ ppg mud. After setting casing, the well was drilled to 13282' where a 4'/2° production 02006 Prepared by Signa Engineering Corp Page 8 ~ ~ Brooks Range Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ liner was set across the Ivishak. Overall, from spud to TD, the well averaged 458 feet per day which includes 6 days of logging at the 7" casing point. Five additional wells were drilled to develop Midnight Sun, three Kuparuk producers and two Kuparuk water injectors. E-101 was then drilled to 13,618' MD at 66 degrees with 9 5/8" surface casing set at 6,370' MD (4,558' TVD). 7" production casing was set at TD in a 8'/Z" hole and 10.2 ppg mud. Spud to TD was 21 days. E-102 was then drilled to 10,315' MD at 43 degrees with 10 3/" surface casing set at 4,407' MD. 7 5/8" production casing was set at TD in a 9 7/8" hole and 10.3 ppg mud. Spud to TD was 11 days. E-103 was drilled to 12,240' as a horizontal Kuparuk injector in 18 days. E-104 was drilled to 12,384' MD as a Kuparuk injection well. Maximum angle was 58 degrees. After setting 9 5/8" surface at 5013' MD, 8 3/" hole was drilled to TD where 7" casing was run to bottom. Spud to TD took 9 days. As can be concluded from the above information, BP conducted a very successful, ~ highly efficient drilling campaign at Midnight Sun. 2.4 NORTHSTAR Northstar Field was discovered in 1983 with the Amerada Hess - Sea! Island A-1. Five delineation wells were drilled by Amerada and Shell during 1984-1985. Actual field development began in early 2001 when BP drilled Northstar 27 from the newly constructed d~illing island. From 2001 to early 2004, BP drilled 23 wells high angle directional wells to develop the field. All of the development wells set 13 3/8" surface casing at around 3,603' MD (3,224' ND). The first three wells drilled through the Kingak shale and set 9 5/8" intermediate at approximately 10,800' ND in 11.3-11.6 ppg water base mud. The wells then drilled a short interval (--400') where a 7" production liner was set. BP changed the well design after the first three wells to additionally protect the Kuparuk zone. The initial design subjected the Kuparuk to the 11.5 ppg mud while the Kingak was drilled. The new design added a protective drilling liner to cover the Kingak from below the Kuparuk to the top of the Ivishak. 9 5/8" intermediate was set below the Kuparuk in the top of the Miluveach shale. The Kingak was then drilled with 11.3-13.1 ppg mud (average 12.4 ppg) to the Sag River where the 7" drilling liner was set. A 6 1/8" hole was then d~illed to TD and a 4%" production liner set. BP's design was focused on minimizing formation damage in both the Kuparuk and Ivishak zones 2~s welt ~~ avvid'tng ~ drilling probterns in the KingaK. 02006 Prepared by Signa Engineering Corp Page 9 ~ • • r ~ U ~rooks Ran~e Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.5 DRILLING R/SK ASSESSMENT Depth Interval (Mp) Anticipated Adverse Condkions Precautions to be taken From To Be sure to run both pumps and keep the hole clean. Hole Cleaning Utilize sweeps on connections and as dictated by hole condition. Control drill based on PWD readings to avoid cuttings loading. Maintain recommended mud properties. Te~dency for doglegs at base of permafrost (-1600'). Permafrost Maintain tangent angle 100' above and below PF base. Possible tight hole in shales below PF. Closely monitor dra on tri s. Diverter to be installed and function tested. Control drill to 0 4028 Gas Hydrates minimize gas expansion at surtace if hydrates present. Mudloggers to be rigged up and monitoring BG gas. Treat mud with cold watec Pre Treat with Lecithin. Precautions should be taken for shallow gas at all times. Highest liklihood of having a shallow gas problem is on trips. When drilling, monitor mud log gas and increase Shallow Gas pump rate to increase ECD if gas defected. Increase mud weight if possible. Use diverter'rf rig safety compromised. When tripping, keep hole full and closely monitor trip tank. Pum out of hole if tendan to swab. Lost Retums Maintain minimum mud weight. Control running speeds when runnin 9 5/8" casin . Known instability issues in area in HRZ shale, Miluveach Shale Instability and Kingak shales. Mftigation includes KCL mud system, maintain near vertical angle through shales and increased mud dens' , if re uired. Watch for increased shale across shaker and increased torque and drag. Maintain proper hole cleaning. If torque Hole Cleaning increases make a wiper trip. Plotting torque and drag daily will indicate problematic hends. Report torque and Pick- u Rotatin and Slack off wei hts. Hole packoff can occur due to conglomerate drilling in the Stuck Pipe due to hole packoff Triassic and/or improper hole cleaning. Use PWD data to monitor cuttings loading and control drill and/or circulate out to clean hole and lower ECD. Most likely when BHA across permeable sands. Maintain 4028 TD Stuck pipe due to Differential Sticking Pipe movement (recip and/or rotate) at all times. Maintain mud properties within desired ranges and maintain minimum low rav' solids in mud. A slight ramp in pore pressure could occur around 7000' and increase to -9.6 ppg by 8000' MD. Mud weight will be adjusted accordingly to maintain 200-300 psi OB. Increasing pore pressure Mudloggers to monitor background gas and other indicators of increasing pore pressure. Pertorm flow checks on connections and monitor trips Gosely to ensure ro er fill u and minimize swabbin . Utilize PWD to maintain constant ECD within desired limits. Lost retums Maintain mud rheology acxording to mud plan. Be re ared to control LC with LCM accordin to mud lan. Problem should be mitigated uvith use of KCL mud. Nut Bit Balling plug and detergent sweeps sometimes effective in removin cla ball. Drilling Risk Assessment • 02006 Prepared by Signa Engineering Corp Page 10 r' ~ ~ Brooks Ranye Petroleum a subsidlarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • 2.6 GENERAL WELL PLAN 1. Set 16" 0.50" wall thickness conductor using "Watson" drill at minimum depth of 80' below ground level. Install 8' diameter by 6' deep corrugated pipe cellar. 2. Install VetcoGray 16" landing ring. 3. MIRU Nabors Alaska Rig 16E. 4. Notify regulatory agencies of spud as required. 5. Nipple up 16" diverter riser and 21 '/4" Hydril MSP 2000 psi diverter system. lnstall 16" diverter line. 6. ~lotify ~4C1GGG of planr~ed d'tverter test so that'they can witn~ss t~st': Function test diverter system and conduct diverter operation drills with each drilling crew. 7. MU 12 1/4" tricone bit, PDM and MWD/LWD/PWD tools and spud well. Kick well off at 500' and directionally drill to 1,880' MD. Angle will be built to 37.4 degrees. Care should be taken when drilling through the base of the permafrost at ~1,656' MD (1,590' ND) (Possible gas hydrates, shallow gas and/or deviation problems). ~' • 8. Make wiper trip back to surFace to check hole condition and reduce angle setting on PDM. 9. Continue to drill tangent section to approximately 4028' MD. Use LWD and return samples to pick casing point in competent shale section. POH and LD B HA. 10. Run 9 5/8" 40 ppf L-80 BTC-M surface casing to TD of 4,027' MD - 3,478' ND (. Run TAM ported collar at 1000'. Circulate complete circulation or until hole is clean. 11. Perform single stage cement job using Articset Lite lead followed by Class G tail slurry. If no cement returns to surface, perform top out stage. ~~~ ~~,C, ~.~ 12. ND diverter and NU VetcoGray MB-230 multibowl wellhead. ~~'i`"~~^~ ~ s~-C~: 13. Notify AOGCC 24 hours ahead of planned BOP test. ~~ ~` ~- `~~ ~~ 14. NU 13 5/8" 5K BOP stack and 3 1/16" choke manifold. Test to 250/5000 psi. Install wear bushing. 15. PU enough 5" drill pipe to reach TD 16. PU 8 3/4" PDC bit, rotary steerable, MWD, LWD & PWD tools and run in hole to Float coltar. Test 9 5/8" casing to 3000 psi with 9.6 ppg mud for 30 min. 17. Drill out float equipment and cement. 18. Drill minimum of 20' of new formation (but not more than 54') below 9 5/8" • shoe and perform formation integrity test. 02006 Prepared by Signa Engineering Corp Page 11 , ~ . n ~J • Brooks Ranye Petroleum a subsidiarvofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 19. Drill 8 3/4" hole as per directional program to TD at 12,978' MD (11,290' ND)' with 10.5 ppg mud. If shows are encountered in Kuparuk and/or Ivishak interval, decision may be made to POH and run conventional core barrel. Depending on days since {ast BOP test, BOP test may be required. (BOP tests required every 7 days). . 20. At TD, wireline logs may be run (MDT and/or Dipole Sonic). If formation test tool required, plan to run on drill pipe. 21. If decision is made to P&A, proceed with abandonment as per AOGCC regulations and as discussed in Section 5.4 of the drilling program. A detailed plugging procedure will be prepared and approval obtained from AOGCC. 22. If decision is made to run 7" casing, RIH with bit and one stand of drill collars to TD and circulate and condition mud prior to POH and running casing. 23. POH laying down 5" DP. 24. Rig up and run 7" casing. 25. Cement 7" casing. Top of cement to be determined based on open hole logs. 26. Install 3'/z' pipe rams in BOP stack and test stack. 27. Test 7" casing to 3,500 psi. 28. Freeze protect 7" X 9 5/8" annulus. 29. Run cased hole logs (USIT-CBL). 30. Run 3'/2° tubing completion as per detailed completion procedure. Q~t~ited campletian pracedur~ to be °subm'r~ted to AOG~G: 31. NU tree and test same to 5,000 psi. 32. Freeze protect well. 33. PerForate using wireline guns. 34. RU PowerWell testing equipment and flow test well as per well testing procedure (will be included as Appendix to this program). 35. Proceed with pumping kill weight fluid and setting necessary mechanical plugs to provide required barriers for suspending well with all downhole production equipment in place. A sundry IVoti~e (Forrrti 403) ~hctt~ld be fited with AOGCC describing barriers: 36. Close SCSSV and install BPV in tubing hanger mandrel. install single valve tree. Install VR plugs in all wellhead valves. 02006 Prepared by Signa Engineering Corp Page 12 ~ ~ • Brooks Range Petroleum a subsidiarvofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.7 DIRECTIONS TO LOCATION ~ ;~ ~ ~ ~~ ~ x- _ ~ __ j~ i, ~ . _ ;~ ,~ ~ LJ n U '- ~ ~~' _ ... . f;~~....,.. e ~A J w ~ ,~~~ a 'S l`i/`&~i~. . ~` -:...,,~..~:., ~ '~~ ' B p-,,, ,. ~ t, :~.~,. ,~.~, ~~ : ,~ ~_. ~ ~, __ _ ;S ~,~ ~r ~~~ y ti ,,./ o ~ , ~~'~~C' . ~x - ~~ AML ~ j' ~YOr t ~ Sak River Pad Road Map Go west on Spine Road approximately 25 miles from Deadhorse. Turn north on road to S pad. Turn left on ice road south of S pad and follow approximately 6 miles to location. 02006 Prepared by Signa Engineering Corp / ~° :~ . ~ Page 13 • ~rooks Rapge Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 3 Geology & Maps 3.1 FORMATION TOPS • Top Top Nad 27 Alaska St Plane Zone 04 Formation MDrkb TVDrkb North East Surface GL 40 40 6,006,061 626,647 KOP 500 500 6,006,061 626,647 Permafrost 1,656 1,590 6,006,296 626,880 End Build 1,883 1,775 6,006,388 626,972 .7 Z7lv~ ~is'~$l1~f~ {~Qtr1[ ~rV2~ ~.4b~Q ~~~: ~xVV/ rV~~ <- , ,cid~~t~~ :~~. Start Dropping Angle 9,130 7,529 6,009,513 630,078 Top HRZ 9,607 7,940 6,009,683 630,248 Btm HRZ 9,872 8,190 6,009,745 630,309 Kuparuk R F. 10,026 8,340 6,009,769 630,333 Angle drop to verticai 10,378 8,690 6,009,792 630,356 Kuparuk C1 10,378 8,690 6,009,792 630,356 LCU 10,428 8,740 6,009,792 630,356 Base Kuparuk 10,603 8,915 6,009,792 630,356 Kingak (Jurassic) 11,583 9,895 6,009,792 630,356 Sag River SS 12,568 10,880 6,009,792 630,356 Ivishak 12,738 11,050 6,009,792 630,356 TD 12,978 11,290 6,009,792 630,356 Formation Tops ~ 02006 Prepared by Signa Engineering Corp Page 14 • • Brooks Range Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 4 Time & Cost Estimate 4.1 DEPTH VERSUS DAYS Sak River 1 Depth vs Days . Days from Spud 0 5 10 15 20 25 30 35 0 ~ ~ , ~ i ~ ~ ~ ~ ~ , 1000 ' ~ ~ __-__' , - ---~ ------------~-------~- ----,------ ~ ~ ~ ~ ~ ~ ~ ~ ~ 2000 ' ' ' ' ' ' ,- ------------,------,-------~-------,----- ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3000 ' '-------'-------'------'-------'----- ~ ~ ~ ~ ~ ~ ~ ~ , ~ ~ ~ 4000 '------'-------'------'-----'------ ~ , ~ ~ ~ ~ ~ , ~ ~ ~ , , ~ ~ 5000 ------'--- ---'-------'-------'-------'------~------ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ , , ~ ~ _ ,m 6000 ______~___ _ ~_______~_____'_~_______~______~______ L ~ I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 7000 ------~---- -------~-------~-------~------~------ _ ~ ~ ~ p , i i ~ ~ d ~ , ~ ---~-------~------~----- ~ 8000 ' ~ ~ ~ ~ ~ ~ ~ ~ ~ N i ~ d 9~~0 i . ~i------ ~ ; Conventional Core in Kuparuk ~- 10000 ~ ~ , ; , ~ 11000 -----~----------- --~------------;----- ~ ~ ~ ~ ~ ~ , ~ ~ ----r------~-------~--- -~- ----,------ 12000 ~ I 1 ----' ~ ~ ~ ~ ~ ~ ~ ~ 13000 ------,-------;-------;-------~- -'----- ; ; ; Run open hole logs as required, 14000 ' ' ' Run 7" casing, Run completion. ; ; RDMO ~ ~ 15000 _ _. . ._._._.__~__ ~ _ ~ _ _ ,_ __. _ __.. .. _. ...... ~ . ............... Depth versus Days - Drill & Complete . 02006 Prepared by Signa Engineering Corp Page 15 ~ • ~rooks Rap9e Petroleum a subsidiacv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 5 Detailed Operations Procedure 5.1 PLUG AND ABANDONMENT PROCEDURE Abandonment must be designed and executed to comply with AOGCC Rule 20 AAC 25.112. Key elements of the requirements are shown below. Plugging of the uncased portion of a wellbore must be performed in a manner that ensures that all hydrocarbons and freshwater are confined to their respective indigenous strata and are prevented from migrating into other strata or to the surface. The minimum requirements for plugging the uncased portion of a wellbore are as follows: A cement plug must be placed from 100 feet below the base to 100 feet above the top of all hydrocarbon-bearing strata. A cement plug must be placed from the well's total depth to 100 feet above the top of all hydrocarbon-bearing strata. ~ A cement plug must be placed from 100 feet below the base to 50 feet above the base of each abnormally geo-pressured stratum and from 50 feet below the top to 100 feet above the top of each abnormally geo-pressured stratum; A cement plug must be placed from 150 feet below the base to 50 feet above the base of the deepest freshwater stratum. A continuous cement plug must be placed from 100 feet below to 100 feet above the casing shoe; The down squeeze method using a retainer set no less than 50 feet but no more than 100 feet above the casing shoe can be used with a volume of cement sufficient to fill the wellbore from the retainer to 100 feet below the casing shoe. Cement must be pumped above the retainer to cap it with a 50 foot cement plug. Except for surface plugs, the operator shall record the actual location and integrity of cement plugs, cement retainers, or bridge plugs set, using one of the following methods, which in the case of a cement retainer or bridge plug may be performed before cement is placed on top of the plug: Placing sufficient weight on the plug to confirm its location and to confirm that the plug has set and a competent plug is in place. ~ 02006 Prepared by Signa Engineering Corp Page 16 • ~ Brooks Range Petroleum a subsidiarv ofAVCG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska r~ L~ 2. Testing the plug to hold a surface pressure of 1,500 psig or 0.25 psi/ft multiplied by the true vertical depth of the casing shoe, whichever is greater, and tagging the plug to confirm location; however, surface pressure may not subject the casing to a hoop stress that will exceed 70 percent of the minimum yield strength of the casing. Each of the respective intervals of a wellbore befinreen the various plugs must be filled with fluid of sufficient density to exert a hydrostatic pressure exceeding the greatest formation pressure of permeable formations in the intervals befinreen the plugs at the time of abandonment. Plugs and slurry designs will be determined based on logs. 5.2 WELL TESTING This exploratory well targets two prospective producing intervals, the Kuparuk C sand and the Ivishak Sand. Both zones could be individually tested. Well testing will utilize a portable test separator, flare and portable tank battery. Surface samples will be collected from the test separator periodically during any flow test. Any produced liquids brought to surface will be collected and hauled to an existing facility in Prudhoe Bay. • Produced fluiti volumes by zone rnust be reported to AOGCC: Any produced gas brought to the surface will be flared. PowerWell services will provide the testing services. A detailed well testing design and procedure will be prepared and included as an Appendix to this procedure. • 02006 Prepared by Signa Engineering Corp Page 17 • r~ L_J • Hrooks Range Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 6 Well Path Design 6.1 DESCR/PTION Kick off point is in surface hole at 500' building at 3 degrees per 100 feet to 37.4 degrees at 1,883' MD. A 45.8 degree azimuth tangent will be held to 9,130' MD where angle will be dropped to vertical by 10,378' MD at 3 degrees per 100'. 6.2 SURVEYING All surveying will be conducted using Sperry's MWD directional module. 6.3 SPERRY DESIGNS b 6 p4 E 3 F aE:z-xt ar~: { -:: { A' ~ y ao1L i w i6] il a1~ 7 1~i1! -~ ~1.-~, u s e~-~ •~i.]OV-Ka: rIF2-':': R~Y0.'60.: • ~ ~ J\ ~ . 0: . ). ~ ~ Rrq.vBri ~ 1'AN'OL 'P•714~K+' . :mt1'YNf p.~~ . . °~ ~ ~~ ~r~<..r.. / 7 J ~ \ LLe~ ~uyr tir~r ~..~.rs.~- T.Zl ~'RIAi S (.~K RTAl2 St 7m Y A~ ' tiD :: ~ i.P R~ -Ye~ 1'L~ ~ ~F!' LN l Ht1 1 (P b40 4T. (S 07I '1X " W:C P: B~i fi Ff 0C. iC OIC .A1 1S :t `~ . 11'A~ t! 1 lOCO :C U!.^ OF5 :f :~ 2f9 4tC :!k• MV a~F 'WC 37:1 :1" 1C1 SOC i)li f ;"4 ~ MN +~.W ~AIC. `4' .1P5 fdC '!G iV~1 :~1~~*~_t ~~~~ HALLIBURTON i~ ico r~ :+c ~ai :sii ~i cro sm .w+s c • sa.'•ro'w~ws....w. ~ + ~a: c-e: cm om a~e ex `exc r.ace ~'s ur~ f^:s r^: t~ ce :sx :oa rwe rv~ w.x..a;~~~n.+e: »r wn~, .~ :a:.~,cv : ~:~~w ti.ea - !e r. :g~: ex et ~uca tee'r i-is em :c ru~ .~ c a . ~ .. =:vv.~~ x„tww mao P~oJocC GwyAyrBay She: G~' A rEts -SoiRMer y y y WeU: Sak Rivervt ~vs~.sor+~r~rw:~oe-r~~'wsc~a~a..~~ rNbore: SakRirerl "^ sw~r-„ir:~~ Tr we~ ~E~r s.rv 9w ~Saka7ver•twpot <~a ma r•e acc.~~'.~' nmex wr. y1 ._"S~a.~P..9•Y7 y]C ID E]LTt~ ipIMl10MTC1OE~K3 ~i~ .". bt~~• 3ror10tr1C+~•~ lOCtG.f77TY~ R 1K~ IIOiMIi fa~wa~ ~ ~ 24. __. MI.• ~1 e+r~lQ ""-""-. OOO t~BiYf Wp~Y~11.F . _ - ~ 'r>,e n. ~. ~eee a w +sra•w ~~ rssn wrn~ ~ .onc-++.e ' 9 O~IPO w12~t WJ !b0 IOYSf ~ Ba~l(ywi ` '- "-. I W60 IHtlt NiAW3~wA IA00 ~t Ta~fy - C 5? 5Wt Oa NOC'. fiT' G LO IODOTA NalD ti13~ t iW Mwi ) ~ E~cIN~.'i?,'t~ ~':+F•.:~ ~4~~ 9YrtPr}•fOC:%3PIO.TLY.f"VO " - Ba~NC[ '••'' " ! TqC.f fsM ' :•~~~• ~ "^ NrpaM N f, - l<V ...... ..: ... :: •~ ~ 3.-....._'__ fiM7e tDAlt~~ObDPTVD ~rNP~+- ......"'. . . ...___.~_____._...._. .._.-~ RV~4i+wM..-.... . '.S4RwMT tOF05Cl~! . _~_~.___... -'~ tw~....... . . , ~BMN~N~LSr11aN•!~yp1 ~ . ..'.. 7AMY .............. ~ , ' -' .. :-. ... . -" im. Q~N'~ t3iTS 1' M. f•:00 sr ~~etK.a 9ec:.m at r1 3=' .:S:~C'l M• 1Q.`D ~'/~ ILO]D 'f~00C ~ a :M1Ta Halliburton (Sperry) Section View U 02006 Prepared by Signa Engineering Corp Page 18 ~ • Brooks Ranqe Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska :,~.~z-.~ . ~«,W~..~ M[ 'YD 1C hrn ~b 'M~59 4f';? p•• p 4 t.~wV.rRLM..a~-~M1NS iM-' 1~~9T 3Yw~..o- rlr!-no.lanatVO..:a.: ~.•.~mA :%'W~r0. KP ~ ~ /~ / . 11_9~.9 t~p'p; ~ . ~ ~i`Y • . w.~NY~.~ I~Cws /~/ ~/ ' \ Ifiwflb Pitylr F1~Iw~11rM11.urlUn~nn SE+ :n)~Cafilt.9 Su ML+ A ~A Tl: CA 0.% 3LC <i .4.i O.i .c-W 0.~y .8 07F 14a Y3K. i+qt Q1U C3 i SGO OOP 100 fS+ eoao :m ssao se: OA ~e :D Q~7E ~e zx :A' C~ aeo zz fJ15A :Ci ` '2' 1 S t~(q % ~5,~p '!E7 ~ S~~ tl 10 "Jf@5 :71.: ' `t~ Y+T SCt _ A !'JP 0'-0 7Ji~ 00p YYO . . .. .lr+~i.~Rr~~1s~Y6 ~ , . +9~:7 RM ~5.~0 ri~L . _ Y'1~ . it.~0 i.06 ]M ~CIS HALLIBURTDN `~~"-'~ ~~:'~~~;~`~° ~ s •Taai ox °m ~'a~u.°^ "~' -5~.9e3~ ' ;``•e ia~0e C '"' +wm ~i a C403{}`- • • ? OC s 4 i S ew~+ry ~nvq 9er.iee~ Nde1 ]rwc A01~~ R ~j01''~" ~^"'-'Q ' > . ' y]E 1 0~ :9C .R C ~:rri ¢a :m ...we:. ICO .' xe*. 8 X .- , ax 1r. w g . :x _w~ R mVLrM 6vHa P~~L r 8 wB:A."~EnocErce-n~u:uw:w.'F:rNTu^ucu'~~.~] ~~ ~ Si G 8 S kRi "^' E.c tn~rrr se Jt -~.:< ._~.~ r.ur ~u rc: yr ay- a ver Welt S~k Rive~•7 v n~.w.~ k ean:t •~eea c v<• e >-,. v•.a -~ .^v: ~ er;v . '. .... ~ wr.zxmen • We1J6ore: SaM Riverl Plan: Sak Rfvev • 1 wptl! a F~c~. :F ~ ;: . . • srn.~.sra.-i+~o: a_ ` •oe --:.Eaoa i~:a~icaen. ~ao - ~~ - r ¢ /~.. ~aa ta-ar~corna ~, ~ J j /~ ` ~ g ~ ~ 44Q)i7V'9:lC3C.'s`Ai':~ _ ~ :TP / :(A . D p:_ ~ cxs r.eae.:.a:'w~ a~im -----' ---"------~af4ro :~.-.rmiern~ ~ " '_""_' _""' _ "' .' Y[~ :AfbIC 1?IQT.~ ~- • ~' . _ . _. ' ' Srp1~S:7C !l~IONL:tS. 9n ][. f YJC' m 10 CV1D ~ ~l"l. -MW .i006 .)a% ~U06 :Y.C -0GC ! QO i31D IIW WO !pB INE i']0 +100 VJC ~OID }I00 'VO 'J00 U00 li'cal-)E~(':I130C 6N Halliburton (Sperry) Plan View • 6.4 WELL PROX/MITY There are no wells within several miles of the SR 1 surface location. Accordingly, wellbore path interference is not an issue. 02006 Prepared by Signa Engineering Corp Page 19 ~ C_J Brooks Ranae Petroleum a subsidiarv of AVCG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7 Drilling Fluids and Pressure Gradients 7.1 PORE PRESSURE Pore pressure data was compiled from DST's on area exploration wells as well as bottomhole pressure data available from Northstar and PBU-Midnight Sun fields and is shown below. Well Distance Date Formation ND Type Recovery Pressure Eq PPG Hamilton - KUP Delta 51-1 5 miles SSE 1970 Kuparuk 9120 OH DST GCM 3906 8.24 Co~oco - Gwydyr Bay State 2A 5 miles ESE 1981 Kuparuk 8909 Cased DST Oil 4144 8.95 BP - MSU E-100 (Sam 1) 9 miles SE 1997 Kuparuk 8136 Prod Test Oil 4037 9.54 BP - Northstar 7 miles NE 2005 Kuparuk 9100 BHP NA 4449 9.40 Mobil - Gwydyr Bay South 1 2 1/2 miles SE 1975 Sadlerochit 10034 Cased DST Oil 4900 9.39 Conoco - Gwydyr Bay State 2A 5 miles ESE 1981 Sadlerochit 10655 Cased DST Oil 5141 9.28 BP - Northstar 7 miles NE 2005 Ivishak 11000 BHP NA 5073 8.87 Area Bottomhole Pressure Data • n U Sak River 1 Pore Presaure Data EMW (PP9) B.OD 9.00 to.00 t1.00 t2.00 1000 ~-~--T-1T-! i i i 2000 i i ~ i i i ~ i t i i i i i i i i i i i i 3000 ~ i i i i i i i i i i i i i ~ i i ~ i 4000 i --r i i --r i ~ i i i i t---r-r- i i i 5000 i i i i i i i i i i ~ i i ~ i • Actual Data i ~ i i i i i i i i -Design sooo ----~ ~ ~ ~ $ ~ a ~ ooo , ~ ---~ ~ ~ ~ -+-_ i ~ i ~ ~ i i ~ ~ ~ ~ ~ ~ ~ ~ ___-~-~---- ~ ~ ~ ~ ~ i ~ ~ ~ eooo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ' Kupanrk i i i gppp . ~ . i ~ I I i . .i_ ~I I I 1 I I 1~0 l. ._ 1 I I 1 .I . I I_.. 1 ~ i ~ ~ gadlaroehN ~ i i • i 11000 - - ~ i i ~ ~ i i ~ . ~ . . i i i i i i i 12000 -.- I I I ~ Pore Pressu~e Design Plot 02006 Prepared by Signa Engineering Corp Page 20 ~ ~ ~ • Fracture Gradient i Brooks Ranqe Petroleum a subsidiarv ofAVCG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7.2 FRAC GRADIENT & LEAK OFF TESTS A theoretical fracture pressure gradient was developed using Eaton's correlation. Actual leakoff test data was compiled from area wells and is plotted on the attached. Actual surface casing leak offs typically exceeded the estimated FG by 1.5-2.0 ppg. Values for fracture pressure were assumed as an average of estimated and actual at surface casing depths. Eaton's correlations and actual LOT's compared more favorably at the deeper horizons. SR1 Fracture Pressure EMW (ppg) 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 1000 I 2000 - --- - - - - - ~ I • 3000 • ~ 4000 ~ 5000 - ._ i -- -- ~ - - ~ t Ealon ( • Actual m s~ ~ Desig~ - - - - -- - - ~ 0 ~ 7000 aooo I sooo - _ - ~ - -. -__ - - -._ _ _ __- • •' • i ~oooo iiooo I izooo -__' ~ . _._.__ ._ .~_ _ ~__ _ __ :__ _..- -- _'___. _ _'.____J _ - - A formation integrity test will be performed after drilling out 20' below the 9 5/8" casing. To achieve a FIT of 12.5 ppg with 9.7 ppg mud at 3,478' TVD, 500 psi surface pressure will be required. 02006 Prepared by Signa Engineering Corp Page 21 • • ~ Brooks Range Petroleum a subsidiarv of AYGG. LL~ Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7.3 HOLE STAB/L/TY Three shale intervals are present in the area that sometime require additional mud weight to prevent tight hole due to stress related shale instability. These occur from -7900' to ~8150' 1VD in the HRZ shale and from -9400' to -10,800' TVD in the Miluveach & Kingak shales. Based on review of available drilling histories in the area, shale instability problems are not anticipated at SR1. Furthermore, it is planned to drill the Kingak section vertically which should largely mitigate instability. It is anticipated that the well can be drilled to TD with 10.5 ppg. 7.4 WELL PRESSURE DESIGN Assuming 10.5 ppg mud is used to TD the well in 8 3/" hole and annular friction losses equal 1.0 ppg, an ECD will be 11.5 ppg at total depth. With a 12.5 ppg FIT at the surface casing shoe (3,478' TVD), an ample pressure window (1.0 ppg) exists to safely drill to TD without intermediate casing. Theoretical leak off is estimated to be 13.6 ppg. SR7 Pressure Design Case EMW (ppg) ~ ~~ 8. 00 9.00 10.00 71.00 12.00 13.00 74.00 15.00 16.00 1000 - ~ i i i ~ ~ , - - - • ..-- ~FractureGradient ~ . i ~ i ~ ~ ~ ~pore pressure ' ~ ' ' ~ ' ' ' ~ ~ ~ ~ ~ tMud Weight ~ 2000 i - i ~ i i i i tSWbiIKyHR2 ' ' ~ ' ~ ' i ~ i i i ' tECD -- . ~,- i ~ i i i i Surface wsing at 3~ _ ~ ~ ~ ~ ~ _ -306T ND (4000' MD) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 13.6 ppg LOT ~~ . , aooo . , ~ ~_ ~ _ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ , i- ~~ ~ ~ ~ ~ ~ ~ ~ ooo - ~ ~ + -+- - ~ I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~, ~~ ~ , _ , +- ~ ~ ~ ~ ~ I I I I ~ ~ ~ ~ ~ ~~ ~ ~ ~ ~ ~ ~ ~ I I I I I ~ i I ~ i 1 I I I I I I I ' I I I 1 I I' I I I o ~TI 1-1'- f- ` ~ ~O i i I I I I ~ ~ 1 1 i I I I I ~ I - I I I I 1 I I I I I I' i I i I ~ I I I II I I I 1 I I I - i I I I I I 1 I 1 I I I t I 11 I i ~ I I I I I ~ ~ ~ ~ i ~ 1 I I ~I ~ ~ ~HRz ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ j ~, i , ; , , i ,~ ~ , Kupuuk C ~ ~ i ~ -i i i ~ i i i i ~ ' ' i i i ~ ~ ~ i i i i i , ~ ~ ~ ~ i i i ~~ i i i ~ ~ ~ ~ ' Kingak i~ i i i ~ 10000 - ~---r- . - - r-- 1 ~ ~ TD for SR1 ~~ ~ ~ ~ i ~ i ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ gag River ~' ~ ~ ~ 1100~ -~-~- -i~-- r~ ~-r Ivishak ~ • i i i --~- i i i i i ~ - -r-----rr - ~ ~ ,zooo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ - Well Pressure Design 02006 Prepared by Signa Engineering Corp Page 22 ~ ~ ~ Brooks Ranae Petroleum a subsidiarv of A VCG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7.5 TEMPERATURE A temperature gradient of 2.6° F per 100' is used from base of permafrost to 6000'; thereafter a gradient of 2.3° F per 100' is used to TD. Depth (ND) Temp (° F) Gradient (° F/100') 0 25 0.00 1600 32 0.20 2000 42 2.60 3000 68 2.60 4000 94 2.60 5000 120 2.60 6000 146 2.60 7000 169 2.30 8000 192 2.30 9000 215 2.30 10000 238 2.30 11000 261 2.30 11290 268 2.30 Temperature Gradient ~ 02006 Prepared by Signa Engineering Corp Page 23 ~ Hrooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • 7.6 DRILL/NG FLU/DS PROGRAM • 12'/4" Surface Hole - Surface to 4.027' MD (3,478 TVD~ A KCI/KLAGARD spud mud will be used for the surface intervai to reduce dilution, minimize bit balling and reduce haul-off volumes. Initial viscosities of 150-175 sec/qt will be used throughout the permafrost, which extends to a depth of approximately 1,600' TVD. 121/4" Surface Hole - Surface to 4000' D~illing Fluid System KCUKlagard Spud Mud Products Usetl M-I Barite, MI Gel, Caustic, Drispac, Duovis, Bicarb, DRILLZONE. KCI, SCREEN KLEEN, Resinex, KLAGARD Mechanical Solids Control Four Rig Dertick 2000 Shakers, Swaco 5500 Centrifuge Gravel, unconsolidated sand, clay ClayBit Balling Potential Problems Tight Hole Severe Hole Washout Lost Circulation Interval Mud Propertiea Mud P~operty Initial Value Final Value ~ Total Depth Density (ppg) 9.1 9.5 - 9.6 Yield Point (cP) 45-60 45 - 60 PV (Ib/100 s~ 20-30 20 - 30 10 Sec Gels (IbH00 sfl 10-20 10-20 10 min Gels (Ibl100 s~ 15-40 15 - 40 pH 9.0-9.5 9.0 - 9.5 API Filtrate(cc) 8-15 <8 SOlids (°k) t 9% t 9% Mud Formulation Product Function Concentration Caustic Alkalinity Control 0.25 Ib/bbl Duovis Viscosifier 1.25-1.751b/bbl PoIyPAC Supreme (or UL) Fluid Loss 1-2+ Iblbbl 6°h KCI Ctay Control 22 Ib/bbl M-I Barite Weighting Agent As required for mud weight ScreenKleen Shaker screen blinding, clay ~ntrol 0.5 - 1% v/v (as needed at the well site) Klagard Shale Control 8 Ib/bbl 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. Gravel sizes can cause hole-cleaning problems. If larger than normal gravel is • encountered be prepared to increase funnel viscosity to +175 - 200 sec/qt. 02006 Prepared by Signa Engineering Corp Page 24 ~ ~ ~oks Ranqe Petroleum a subsidia-v of AY~G. LLG Sak River No. 1 Drilting Program Gwydyr Bay Area, Alaska • Sticky clays in the permafrost at and also in the zone below the permafrost can slow ROP from bit balling. If needed add DRILLZONE or SCREEN KLEEN (at 0.5 - 1.5%) and Nut Plug m(as allowed by MWD tools) to help clean and clear the balled bit. Use cold water for the initial make-up and for additions made to the mud system during the surface drilling operations to help prevent permafrost thawing. Try to keep flowline temperatures of 60°F or less while drilling this interval. Maintain low flow rates for the initial 200' of drilling to reduce the chance of washing out the conductor shoe. Sticky clay formations are problematic in the surface hole. Maintain or slightly increase mud weight (0.1 ppg) and continue additions of surfactant at 15 to 30 gallons per hour. Wiper runs may be necessary to wipe the wellbore of the problem clays. DRILLZONE or SCREEN KLEEN maintained at 0.5 - 1.5% is recommended to help with clay related issues. To help insure good cement to surface after running the casing, condition mud to a YP of 25-30 prior to cementing the casing. Use water sparinqly and ensure proper solids control equipment utilization is beinq • observed to reduce the over all haul-off costs for this well. Although a low potential risk, hydrates may be encountered (particularly at depths just below the base of the permafrost). Observe good drilling practices to determine severity of any influx and weight up as needed to maintain proper well control. Precautions including control drilling and additions of Lecithin should be taken. As with hvdrates. there is a low risk shallow aas could be qresent. Be alert for mud loq / indications of Qas in shallow hole. Increase circulation rate and/or mud weiqht if necessarv. Be especiallv diliqent when tripqinq. Monitor trip tank closelv. Use top drive to oumn out of hole if hole swabs. If there is anv doubt about fill up volumes, return to bottom and circulate out Spud mud will be mixed on the rig or at M-I Swaco's Prudhoe Bay mud plant once the rig is spotted over the well. For the first batch (100-200 bbls) of fluid mixed, add caustic or KOH and 2.5 ppb M-I Gel to the make-up water and allow the gel to hydrate as long as is 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. Run all solids control equipment. Run 84-110 mesh shaker screens to maintain a moist discharge for enhanced solids removal. Add drill water below shaker to avoid washing unwanted solids back into the active system. Watch for "excessively wet" cuttings and ~ 02006 Prepared by Signa Engineering Corp Page 25 ! ~ Brooks Range Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska . change screens to a larger mesh should this occur. Minimization of "excessively wet" cuttings sent to Grind and Inject for disposal is a major cost reduction factor. Lower API fluid loss with Drispac (or Poly Pac Supreme UL) as needed to maintain hole stability. To control rheology, additions of Desco CF inay be needed. Allow surface mud volumes to fall during the later stage of this interval to minimize waste fluid disposal costs. Run and set the casing as per program. Treat the chase fluid and drill out mud fo~ the upcoming cement drill out. Pre treat as required to prepare for cement drill out after running 9 5/8" casing. Upon drill-out of the surface casing shoe, treat any cement returns with SAPP, Bicarb, and PH-6 as needed. 8 3/" Production Hole 4,027' MD to 12,978' MD (11,290' TVD) The production interval will be drilled to a planned depth of 12,978' MD in a 8 3/<" hole. The interval will begin with a 9.5-9.7 ppg fluid and will TD at 12,978' with a planned 10.5 ppg fluid. Close monitoring of hole conditions during connections and on short trips in • conjunction with mud logging parameters will determine if there will be a requirement to increase mud weight to control shale instability. Lithology for this interval is expected to be typical of this region consisting of sand, shales, and siltstones. Ensure that the fluid properties are maintained to provide the best possible hole cleaning. Maintain mud weights as per program guide lines, or as the hole dictates, and ensure that rheology is optimized to reduce ECD's to a manageable level while drilling. Monitor for any fluid losses and flow back closely. Control the ROP and flow rates as needed using PWD readings to avoid inducing a breakdown of any formations. Reduce pump rates immediately if packing off occurs. Pump high viscosity sweeps periodically to assist in hole cleaning and evaluating hole cleaning performance. Adjust rheology, pipe rotation speed, pipe running speeds and pump rates as needed to balance hole cleaning and ECD. Break circulation slowlv and keep in mind that, with hiqh vield point muds, the maioritv of ECD is realized at verv low circulation rates. Lost circulation could be a possible problem for this interval. Tripping and casing running speeds should be monitored closely. Rheology and mud weight should also be held within tight specification. Add lubricants as needed but do not exceed 3% v/v total without careful consideration. Also ensure that the hole is clean prior to adding lubricants. Do not use the lubricants as a substitute for hole cleaning problem. • 02006 Prepared by Signa Engineering Corp Page 26 i • Brooks Ranae Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • . • Monitor and record drilling parameters on each connection and before and after any lubricant additions. Upon reaching TD 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 second high viscosity/weighted sweep and observe bottoms up again. A mud weight-up to 10.4 ppg will need to be completed by 300' TVD above the Kuparuk. Fluid deliveries, fluid transfers, and cuttings disposal issues should be tracked on a daily basis. 8 3/4" Productfon Hole - Base Surface Casing to 12,978' MD Drilling Flufd System KCUKlagard Products Used M-I Barite, MI Gel, Caustic, Drispac, Duovis, Bicarb, DRILLZONE, KCI, SCREEN KIEEN, Resinex, Mechanical Sollds-Control Four Rig Derrick 2000 Shakers, Swaco 5500 Centrifuge Hole Cleaning Shale Instability Potential Problems Increasing Pore Pressure over normal lnterval Mud Propertias Mud Property Initial Value Final value Density (ppg) 9.5-9.7 10.5 Yield Point (cP) 18-22 18-22 PV (IbH00 s~ 10-15 15-23 Chlorides 28,00032,000 28,000-32,000 pH 9-10 9-10 API Filtrate(cc) 7-15 < 6 Solid8 (%) t 8.5% 8-11 % Mud Formulation Product Function Concent-ation Caustic Alkalinity Control 0.25 Ib/bbl Duovis Viscosifier 0.75-1.251b/bbl Drispac Fluid Loss 0.50-1.75 Ib/bbl 6% KCI Clay Control 22 tb/bbl M-I Ba~ite Weighting Agent As required for mud weight Resinex Fluid Loss 4+ ppb (as needed at the wellsite) ScresnKleen Shaker screen blinding, clay control 0.5 - 1.5% v/v (as needed at the well site) Klagard Shale Control 8 Ib/bbl Dri1lZone Lubricant As needed for torque & drag 02006 Prepared by Signa Engineering Corp Page 27 • ~ Brooks Ran~e Petroleum a subsidiarv of A1LGG._ ~ i r Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • Conditioned mud from the surface interval or new fluid delivered from the MI mud plant will be used to make up the KCI/KLAGARD fluid for this interval. Conditioned mud should be centrifuged as needed to achieve the desired drill out weight of 9.5 - 9.7 ppg. Any fluid weight adjustments should be performed in 0.1-0.2 ppg increments using MI Barite or a weighted "spike" fluid. The potential for lost circulation and/or formations found in the upper portion of increased in the later portion of the interval. following as a guideline: differential sticking, due to more porous this interval, is present as the weight is To help avoid issues such as these use the Maintain low gravity drilled solids below 6% with solids control equipment and dilution. If possible do not allow actual ECD's to exceed 0.5 ppg over predicted "clean hole" ECD. Prior to trips, circulate until a clean hole ECD is attained (< 0.5 ppg above predicted ECD). If necessary, spot a pill containing 10 ppb MIX II, 5 ppb Calcium Carbonate and10 ppb G-Seal. When tripping in hole, break circulation every 3,000-5,000 feet by gradually bringing the pumps up. Optimize tripping speed using MI's TripPro software. 7.7 SOLIDS 8 FLUID WASTE D/SPOSAL ~ All waste disposal procedures will conform to local, state and Federal requirements. The general approach to waste management will be to temporarily store wastes and periodically haul waste materials to existing North Slope facilities for proper treatment and disposaL Garbage and domestic combustible refuse will be hauled to a permitted facility and incinerated. Solid, non-burnable waste will be deposited in large dumpsters and backhauled to a permitted facility. Food waste will either be hauled on a daily basis to a secure disposal site or stored in animal proof conex containers awaiting transport. Sanitary and domestic wastewater will be trucked to an existing, approved waste disposal facility. Drill cuttings will be contained in a"heated cuttings tank" and trucked to an approved grind and inject facility. Waste drilling fluids will be processed on-site for reuse where possible, or trucked to an approved facility for injection. Used oil will be recycled or packaged in drums and hauled to Prudhoe Bay for shipment to an approved recycle facility. • 02006 Prepared by Signa Engineering Corp Page 28 ~ ~ ~ • Bcooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 8 Casing Design 8.1 PLANNED CAS/NG PROGRAM All pipe to be -50 °F Charpy Tested for Arctic conditions Presaure Test(psi) 3000 4500 4500 Surface Surface Production Production Tubin Tubin Depth(MD) 4027 12978 12700 Depth (TVD) ~ 11290 10967 Hole Size 12 1/4 8 3/4 6 1/8 Range 3 3 2 Weight (pp~ 40.00 26.00 9.30 Grede L-80 L-80 L-80 Connection BTC-M BTC-M EUE-M Nominal ID (in) 8.835 6.276 2.922 Drift ID (in) 8.750 6.151 2.867 Wall Thickness (inj 0.395 0.362 0.254 Design Factor (Burst) 1.000 1.250 1.000 1.250 1.000 1.250 Burst (psi) 5,750 4,600 7,240 5,792 10,160 8,128 Design Factor (Collapse) 1.000 1.125 1.000 1.125 1.000 1.Y25 Collapse (psi) 3,090 2,747 5,410 4,809 10,540 9,369 Design Factor (Tube Tension) 1.000 1.500 1.000 1,500 1.000 1.500 - Pipe Jt Strength (klbs) 916 611 604 403 207 13$ Design Factor (Conn Tension) 1.000 1.500 1.000 1.500 1.000 1.50Q Conn St~ength (klbs) 947 631 641 427 288 192 Connection OD 10.625 7.656 4.500 Casing Program 8.2 SAFETY FACTORS Design Safety Factors (From Stresscheck) OD 8urst DF Collapse DF Axia! DF Triaxial DF 9 5/8" 2.79 1.49 3.54 3.17 7" 1.55 1.24 1.66 1.57 Casing Safety Factors L~ 02006 Prepared by Signa Engineering Corp Page 29 ~ ~ ~rooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling P~ogram Gwydyr Bay Area, Alaska ~ 8.3 16" CONDUCTOR CASING A 16" 0.495" wall thickness conductor casing string will be set at 80 feet below ground level utilizing a Watson drill to bore a 24" diameter hole. The casing will be cemented by placing Artic Set cement in the 16" X 24" annulus. A round corrugated galvanized cellar will be installed having a 6' diameter. Due to the surface location close proximity to the shoreline, it is possible that shallow ground water will be encountered while boring the 24" hole. If ground water flow cannot be sealed off, a drive hammer will be utilized to drive the 16" conductor to point of refusal. 8.4 9 5/8" SURFACE CASING Required to provide sufficient fracture gradient to drill to total depth as well as provide protection for permafrost and shallow formations. Burst Design • Internal - Gas Kick Profile or ~ • Internal - Frac at Shoe with Gas Gradient Above • External - Pore Pressure/Seawater Gradient 0 I I 1 I I I ~ I I ( +~ig X e n Loa aetr~ d L'ne soo -- --- ~._.___ _ ---~----!---- -----~---- ~--~_ ~.--- -t-..__ --- ~- - ,ooo I ---._._. . ` t----- ~ i + i ~ ~ ~ . --! ----! --' -~---- I 1 ~ ~'-------~ -} ---- ~-----1 ~ ~ -..__~_' }---- - - ~ t5oo ~ ~ ---~--~ ~ ~ ----~ i ~ I I ~ -}_ ~f-'f---'}---- j /i j t 1 ~ ~ --- ~ ~ --f -- ~ ! ~ -'----- - ~ ' ~_. - ~ 2000 -- j ! ~-'-'--` ± ~ + i ~ ~ -~---~ - ~ I I I. ~ ~ ~ i ~-'~ ~ ( ' ~ ~ z5ao - ~ F--- I I ~ I f I r------ -~-~ ~~_-r ~ I I ~ I I ~ i i ~ i ' ~ - 1 I ~ ' f ~~__1 j 1 , ~ ' _ ~ -- _ ___- - -- E----- , --}-------t----t------~ ------ --- -~ --___i ---~ i - -- 3soo ~~ --- ~ -- ~ ~ !_--~ ~ i I i i - ~ ~ ~ I ~.~__.~..____-_t__.__-{_---f --- ~ ~ ~_~ i i I --~--- , ~ qppp I ~ I I 1 ~ I a { ~ X 0 5 00 1W 0 1500 2000 2500 3000 35 00 40 00 45 00 5000 55 00 60 00 Bursl Rating (psig) 9 5/8" Burst Design Plot ~~ 02006 Prepared by Signa Engineering Corp Page 30 . ~ Brooks Ranye Petroleum a subsidia~y of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ Collapse Design ~ ~ • Internal - Full Evacuation • External - Cement slurry densities (unset) ~ I 1 ~ I I ~ I i I ~ ~ X ~ + Design Load Li~e K Bim~, fe 500 _.. _..-_.~. --- - ~ ~ --~ --------rt--------- -G-------- ------.~ ~ i - -- __~ _---- ,ooo + ' ~ i ~ ------_+__.. .._..---+-------.a.------.._.._..~.----~ 1 ------+ - ------- } ------- K ' I ~ i ~ ~ i i I ~ " ~ j ISOO .~_.._.__.___~.~._______ r.__..~_~ ~.-.__. ~ ._.___-__t .~~.~ L ~ ' ~ ~ ' 0 ~ ~ ~ ~ L '~ 200~ ~ _ .___,__ '___-.~_~_._r ___.~__.._._._.._.~._-_.._ ~ ' ____ i ~ j ~ ..~.'_-_'_ ~., ~ ~ __.__ __ .~ _.~'____ . ~ f 2500 ------'--~"'-'-----~-'----'--' '--•--`--~~-- ~--'------- i ~ i ~ I 1 j --------- ~ ----'-'--~ ~------ ~ 9000 _.~___.__~._ __.~.~~.~~-_. __~_ I 1 I ~ i ! ( ~ ~ ~ ~ ' __~..~_._._.._. 1-~ --'--'-~~---~ -'- 3500 .___.-----'--~ ----.-'~.~ ~----- ~ .. i --~.._...~..--------~ ~- I ( I i ~ 1 ~ ~ ! ) I I 1 aooo ' x o soo ~ooo isoo zaoo 2soo 300o ssoo aooo coi~~s ~~s (a8~s) 9 5/8" Collapse Design Plot Axial Design • 100,000 Ibs overpull 0 i ~ I ,/ ~ I/ I ~ I I ( ~ ~ ~ ~ + Oes x x e ign Load Line F~6n soo ----I-_..- ~ -..__.~~ i __IL _-_-_ i- , ~-.- - -f ---- -f --- -. . ~. -----~--- I... - ~ ... . ---I - ,ooo ; ___-; _...-- ~ -fi- -- ' -- ~ ~ ~ -' +. ~..----- i / ~ ~ ~ .. ~~ ~--i-- --- ' - ~ ~..._._._ --~----- ~ _~ i I ----- j ~ I + I i i i j ~ ~soo --'--- ----4--- -t-~ ---- ~-----I----- ~ - ~ ~~~~~~~~~~~1 - 1 ~~~~_~_~~~~~~~ - Lp m ~ 2~ ~ ~ ~ z~ ~ .~ ---~-- ! --;- ( .~__. --- i ~ --1-. j ~ I _ ..- ~ ~ - ~ - ~ _ ' ~ ~ '--G'_"__'__l_.._'_ T-- ~ , I -~-_ - , -+--- i ~ ~ ___ "'_"_'.1--._ ~ , -~- - ~ t 1 _-1.. ~ , , ~ __-_I ~ . _-`-_ ~ ; ---- -- ! , ---- -~--- ~ ! -----, ~ ~ ! ~ ~ -------~_-- ---;--- + ~ ~ ~ -- ; -- _. __ I ~ ~ _+ --- _.__. 500 1 . __.-' --- --- i i i --'"}'---__. ~ j . . -'----- ~ I ~ i i j ~ ~_..----.. ~..._..._..---~{-._..- 1 ~ I ~ --~ _'---'-'-+--- ~- ~ ! i i _-" _ ~ t ; -~ ----- ~ -_-----... aoao i ~ j ~ ` I i i i I ~ I I X o ~ooooo zooooo 30000o aoo ooo soaooo sooooo ~ooooo eooooo eooao o iooo ooo »aoooo Az~ Face QM) 9 5/8" Axial Design Plot 02006 Prepared by Signa Engineering Corp Page 31 . ~ ~rooks Ran4e Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 8.5 7" PRODUCT/ON CAS/NG ~ 7" designed to be production casing set at TD. Altematively, if shale instability problems are experienced requiring higher mud weights, 7" could be set as intermediate casing which will provide shale interval protection as well as sufficient frac gradient at shoe to reach TD. Burst Design • Internal - Production - Tubing Leak • External - Pore Pressure/Seawater Gradient ~ 1000 "- ~ ~. ~ ---- -~ ^ -"-~-.~ ~-- ~_._ + p~ x ign load L'ne e Aetin ~ ~ I 2000 --~ '-- } ~ ~ -~- -- ------~ i ~ -- --" ~ ~- ~ '"_ 3000 4000 - -- - Y ~_~~~, ~' f ~ ~.. ~ ~_._._ ~. -'- - --' -_ +-.~ - ._.~ .- ., ~ 5WO ~ _.~._..--t - ; I --1-__...-------~ --.._..__._..._.. -- - + ; .. _ - ------ ~ _._ ----- ~.. - -------- , --------- o ~ ~ ~~ ~ m - ---{ --- ~ l --- ~ --__ ~ _ ~__.__.---- -------- - ------._- _._ ~ -. --- -_ ~_ i --~ ---- ~ ~ . ` i _ ~ _.___~___ ~ ___-- ..._---- ~ ~ ~ ,~ __._____ ---- _ ------__. ~._~_~ _ _~_ -~-_ -- -- - -: ------_ ------~ --- ~_.___~ ~.__.___~ -------- .-----~ -------- _ _ i ----- i ~-- --- -- ----- „~ ------- ~ --±-----~------..__ ..___---- -- ± __.__ --±- _~.,-- ,z~ _~ ---- _____ ' I ~ ---~-------- - , -~-_----- ~----- , ----~ , --------~- ' --- - ,~ ' x 0 10 00 2000 3000 40 Burst Rati 00 50 ng (psig) 00 60 00 7000 80 00 7" Burst Design Plot • 02006 Prepared by Signa Engineering Corp Page 32 • ~ ~rooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska . Collapse Design • Internal - Above/Below Packer (Fluid Level @ 8,000' TVD) • External - Mud & cement mix water 0 ' j ~ ~ ~ + Design Load liie 1000 ----- ---- -~-- ~---- - -- i---- --`1'"-----,- -1'_._ x e I~tin 2000 ' ----.~~._. ' _...___..a. .~ ~_. ~~_._. i ~__.~-._ ~ ~~._..._.~- . 3000 ' --'f_-.._ --}'-- ---- i -.*__.._..~.-'- ---}-.` ._ _ ~ ~ ~ ~ . 4000 -' ' - _ __Y..._._ _"~_ .._ "-' ~ 5000 t ._-.-'-._._..~- ' ~ ~ -i-------- ---- - ; -~---' ~ r..____.. ~ ~ .---- ! i fi--- ~ -- ~ so~ ~ , -----_____! ~.------ r----------- , ~ ~ ----- --- i -------~---_ I ------ ° ,----- ------_. y ~ooo ~ t i ----------'----------~------ ~ t - - ~--- ---r---- ! -----r--- t ----- aooo -.-..__._._.._.._.. ~ _ . .. ..- --------- ---- . -----. ._. . -- -- V -- - --- -- -- ------ -- ---_.. sooo -------.._..-i------.. .__.._-.._.. -..._~_. } --- ---- -t-- ----- , ~ -----±_-- ---- i i ~ ' ~oooo ..~----------t-------„_. .. ----- ----- ----- __...-}---- - j --- - r--- --- 11000 12000 ~ , __'___'_'_j_ i ---~--~--~------ ~---'--...--1---~-------' f ~---'--- , ------j ._.._._._. ------- ~...----~ ~_'_'__~. --- .. .._..--'~----.- j -'__' .t-_ -.. ....t_--- ~..-'__ '--.._~_ ! 1 ~ ~ ~ 13000 ' -K 0 1000 2000 3000 4000 5000 6000 OolFapse fbl'n9 ~Pg9) ~ Axial Design • 100,000 Ibs overpull 7" Collapse Design Plot 0 K ~ ~ j~+ + Oesign Load L'ne 1000 2000 ._ ~ ~ .-._..__I + --._. _._. ' _._.__ ~-'-'----._.. . -1-----'-`--~~ -----'--._. . . l-...~ _.-.____'_~.'_._._..-.._.._.~__'_._'_'.__. i ~ -._ ' '____' _ --y---------j-.-._._ _ . _.__.._..__ X e Ratin __.'_-__ -I--__,. 3000 300 i ~ ~ -- -- ~-----4._i_------- --._ ~ .. . _.L_.._.__.._._..-- ' . ~ - ' ~ ~ - -- ~ --------~--------- ' 4000 ~ ---.-:....----..-~.'-. . .. .--+-----1-.._...----- I ~----' - I --'-'-"---__.1..------ ~ ~ L SOOU A E 1- _ - ~ _'~~_ --~"- ' .F-_ ' ` _-_L._~ ~_ o sooo ~ ~ooo ----E+----1-- ---~---- ; -- ---~ ------- i ~~.~_ ~ ~~.~ --- E ~-._.___ ~ _._.~._~.____._--G - ' ---'.._i. _ --~,.---~- ~ ~ aooo .__.`~_- ----j-----G-`_.~__~_ ~ ~ ---- ' ~ ~ I ~ ~ ~ ' ---I--.~ __ sooo ----..~_-i-----__--l------- *-_----- -~--_---- , , -j------- ---- ~ -- - ,~ ` / ~ ~_._.__.___.; i ------..~..-----~------ + i----------~----._._~. i __.__.._~.--~--._._.-- „~ ; ~ , ; ---- ~---._.._._.._.. ~----- ---- ~------- ; ---------.~ ._.._.____. _._..._._.__~_.------ ,2000 -----~--~-l-._._.._.___~.._ ._.._.__. . . .. i_..._._..__..__.._...L.-~----~ ~ ~ ' '~-~--~-~ --~a I ~ I i i ~--.._...-------~~----._..__~. ~ ~ 13000 0 100000 2000pp 300000 400000 500000 600000 ~700000 800000 Axial Force Qb~ 7" A~cial Design Plot . 02006 Prepared by Signa Engineering Corp Page 33 i ~ Brooks Ranye Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • 9 Cement Design 9.1 9 5/8" SURFACE CASING CEMENTING DETAIL ~ _ J 9 5/8" surface casing will be cemented to surface using Arcticset lead cement followed by Class G. 250% of excess cement is planned through the permafrost and 50 % excess below the permafrost. Should cement not return to the surface, the well will be cemented to surface through the TAM ported collar. 9 5/8" Surface Casing Cementing Tall Slurry Lead Slurry RKB 30 feet RKB 30 feet Last Csg OD 16 inches l.ast Csg OD 16 inches Last Csg ID 1525 inches Las~ Csg ID 15.25 inches Last Csg set at-BRT 80 feet Last Csg set at-BRT 80 feet Pertnafrost Depth 1600 teet Permafrosl Depth 1600 feet Hole Size 12.25 inches Hole Size 12.25 inches Casing OD 9.625 inches Casing OD 9.625 inches Casing ID 8.921 inches Casing ID 8.921 inches Casing Depth 4027 feet Casing Depth 4027 feet Csg/Csg Annulus 80 feet CsglCsg Annulus 80 feet Permafrost OH 1600 feet Permafrost OH 1520 feet OH Length Below Pertnafrost 2427 feet OH Length Below Permafrost 2427 feet Excess Csg/Csg 0 % Excess CsgJCsg 0 % Excess Pertnafrost 250 % Excess Permafrost 250 % Excess OH 50 % Excess OH 50 % Float Joint 80 feet Float Joint 80 (eet Tail into lasl csg? No - Lead into last csg? Yes - Length of Tail 1000 feet Length of Lead 3047 feet Top of Tail-BRT 3027 feet Top of Lead-BRT 0 feet Length of Tail-Csg 0 feet Length of Lead-Csg 80 feet Length of Tail-Permafrost 0 feet Length of Lead-Permafrost 1520 feet Length of Tail-OH 1000 feet Length of Lead-OH t447 teet Ann Cap Csg/OH Mn 0.056 Bbls/ft Ann Cap Csg/OH Ann 0.056 Bbls/ft Ann Cap Csg/Csg Ann 0.136 Bbls/tt Ann Cap Csg/Csg Ann 0.136 Bbls/ft Casing Capacity 0.077 Bblslft Casing Capacity 0.077 Bbls/f! Cem Volume Csg/Csg Ann 0.0 Bbls Cem Volume Csg/Csg Ann 10.9 Bbls Ezc Cmt Csg/Csg Annulus 0.0 Bbls Exc Cmt Csg/Csg Annulus 0 Bbls Cem Vdume Csg/Pertn Ann 0.0 Bbls Cem Volume Csg/Perm Ann 84.8 Bbls Exc Cmt CsglPerm Annulus 0.0 Bbls Exc Cmt Csg/Perm Mnulus 212.1 Bbls Cmt Volume Csg/OH Ann 55.8 ebls Cmt Volume Csg/OH Mn 80.8 Bbls Exc Cmt Csg/OH Mnulus 27.9 Bbls Exc Cmt Csg/OH Annulus 40.4 Bbls Total Volume Annulus 83.7 Bbls Total Volume Annulus 428.9 Bbls Shce Volume 6.2 Bbls ~ Shoe Volume 0.0 Bbls Casing Capacity to FC 305.1 Bbls Casing Capacity to FC 305.1 Bbls Total Slurry 89.9 Bbls Tolal Slurry 428.9 Bbls Total Slurry 504.7 CF Total Slurry 2407.9 CF Tall Slurry Lead Slur-y Cement Designs Tait Cement Amount 435 Sxs Lead Cement Amount 541 Sxs Slurry Type G Slurry Type Arcticsel Lite Slurty Density 15.8 ppg Slurry Density 10.7 ppg Slurty Yield 1.16 CF/sx Slurry Yeld 4.45 CF/sx Slurry Water Gal/sx Slurry Water Gal/sx S2 0.5 % D46 0.2 % D65 0.3 % D167 0.4 % 02006 Prepared by Signa Engineering Corp Page 34 ~ ~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydy~ Bay Area, Alaska i • C ~ 9 5/8" SurFace Cementing lnstructions No item Remarks 1 Port Coltar Instalt a TAM ported cement collar at 1000`. Have combo tool made up on stand of DP aand stood back in the vent a 2nd cement stage using:lead siu is req'd 2 Fillup Tool Use Frank's top drive fillup tool (Supplied by GBR) 3 Displacement Displace with mud 4 Mud Condition mud as thin 8 light as possible to aid in mud removal (refer to mud ro ram 5 TOC Surtace - 50% excess below permafrost, 250 % excess through permafrost 6 Pressure Test Test lines with water to 3000 psi before starting job 7 Lead Siurry Lead slurry contains freezing point reducer so cement will set instead of freeze 8 Excess Cement Make sure rig & vac trucks organized to safely handle cement retums to surface 9 Top Out Use tail cement slurry ff topping out with 1" - Cementing through TAM collar referred choice wilF utilize lead slu 10 Pump Rate Pump and dispiace cement at 8-10 bpm. Slow rate if losses observed. 11 Pumping Time Total job time 2 1/2 hours; Min pump time lead = 4 hrs, Min pump time tail =3hrs 12 BHT Static temperature estimated 70 deg F at 4000' MD 13 Mixing Watar Have cement company pick up sampie at rig and test 14 Strength Tail cement should have > 1700 psi compressive in 24 hours 15 Circulating C& C mud one full circulation before pumping cement 16 Spacer 50 bbls CW 100 foilowed by 50 bbls MudPush II mixed at 10.5 ppg 17 WOC Minimum of 12 hours before drilling out. Catch surtace samples and observe settin u at room tem erature. 18 Wiper plugs Use top and bottom plug (Double plug cement head with swage required) 19 Notification Notify AOGCC before job 20 Final Pressure Differential pressure -500 psi when plug bumps. Pressure up to 500 psi over final pump pressure and bleed off pressure to check floats. If floats leak, close in surface until cement sets u. 21 Pipe Movement Attempt to recirocate pipe 10-15' during job if hole conditions allow. 9 5/8" Surtace Casing Cementing Equlpment Item OD Quant Location Description Float Shoe 9 5/8 1 Bottom of pipe Weatherford 303 Float Shoe Sure Seal 3- PDC Drillabl Float Jts 9 5/8 2 2 each Float Joints Centralizer 12 1/4 4 2 on each FJ Straight blade rigid centralizers with collar clamps Float Collar 9 5/8 1 In top FJ Weathertord 402 Float Collar - PDC Drillable Centralizer 12 1/4 40 From collar to clamp 10' below Straight blade rigid centralizers with collar clamps 02006 Prepared by Signa Engineering Corp Page 35 . ~ ~rooks Ranye Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • 9.2 7" PRODUCT/ON CAS/NG CEMENT/NG DETA/L ~ ~ 7" surface casing will be cemented bringing cement above the HRZ Shale. Estimates are shown below with actual cement top and volumes based on depth of zones of interest 7" Casing Cementing Tail SIuRy RKB 30 feet Last Csg OD 9.625 inches Last Csg ID 8.835 inches Last Csg set at-BRT 4027 feet Hole Size 8.75 inches Casing OD 7 inches Casing ID 6.276 inches Casing Depth 12978 feet Csg/Csg Annulus 4000 feet OH Length 8978 feet Excess OH 50 % Excess Csg/Csg 0 °~ Float Joint 80 feet Tail into last csg? No - Length of Tail 4000 feet Top of Tail-BRT 8978 feet Length of Tail-OH 4000 feet Length of Tail-Csg 0 feet Ann Cap Csg/OH Ann 0.027 Bblsfft Ann Cap Csg/Csg Ann 0.028 Bbls/ft Casing Capaary 0.038 Bbls/ft Cmt Volume Csg/OH Ann 107.2 Bbls Exc Cmt Csg/OH Annulus 53.6 Bbls Total Volume Csg/OH An~ 160.7 Bbls Total Volume Csg/OH Annulus 902.4 CF Shoe Volume 3.1 Bbls Shoe Volume 17.2 CF Casing Capacity to FC 493.5 Bbls Total Slurry 163.8 Bbls Total Slurry 919.6 CF Tail Slurry Cement Designs Tail Cement Amount 793 Sxs Slurry Type G Slurry Densiry 15.8 ppg Slurry reld 1.16 CF/sx Slurry Water Gal/sx D46 0.2 % D65 0.3 % B155 0.08 % D167 0.4 % 02006 Prepared by Signa Engineering Corp Page 36 ~ • Brooks Ranae Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska . ~ ~~ 7" Cementing Instructions No Issue Remarks 1 Fillup Tool Use Frank's top drive fillup tool (Supplied by GBR) 2 TOC Cement top above top of HRZ - 9607' MD (7940' TVD) 3 Pump Rate Pump and displace cement at 5-7 bpm. Slow rate if losses observed. 4 Displacement Displace with 10.5 ppg treated brine 5 Pumping Time Total job time --3 hrs; need 4.5 hour plus pumping time 6 BHT Static temperature estimated at 268 deg F at 12978' MD 7 BHCT Bottomhole circulating temperature estimated at 190 deg F 8 Pressure Test Test lines with water to 3000 psi before starting job 9 Mixing Water Have cement company pick up sample at rig and test 10 Strength Tail cement should have > 2000 psi compressive in 24 hours 11 Circulating C 8~ C mud minimum one full circulation before pumping cement 12 Spacer 40 bbls CW 100 foltowed by 40 bbls MudPush II mixed at 10.5 ppg 13 WOC Minimum of 8 hours. Catch surface samples and observe setting up at room tem erature. 14 Wiper plugs Use top and bottom plug (Double plug cement head with swage required) 15 Notification Notify AOGCC before job 16 Final Pressure Differential pressure -950 psi when plug bumps. Pressure up to 500 psi over final pump pressure and bleed off pressure to check floats. If floats leak, close in surface until cement sets u. 17 Pipe Movement Attempt to reciprocate pipe 10'-20' during job if hole conditions allow. 7" Intermedfate Casing CemerHing Equipment Item OD Quant Location Description Float Shoe 7 1 Bottom of pipe Weatherford 303 Float Shoe Sure Seal 3 Float Jts 7 2 2 each Float Joints Centralizer 8 3/4 4 2 on each FJ Straight blade rigid centralizers with collar clamps Float Collar 7 1 In top FJ Weatherford 402 Float Collar Centralizer 8 3!4 1 Middle of 3rd jt Straight blade rigid centralizers with collar clamps Centralizer 8 3/4 30 From collar to clamp 10' below Straight blade rigid centralizers with collar clamps 02006 Prepared by Signa Engineering Corp Page 37 ~ i Brooks Ranae Petroleum a subsidiarv of AVCG_ LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 9.3 ABANDONMENT CEMENT/NG Cement slurries and detailed placement procedures will be developed after cement plug requirements are determined as per AOGCC requirements. ~ • 02006 Prepared by Signa Engineering Corp Page 38 ~ ~ Erooks Ranqe Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 10 Evaluation Program 10.1 OPEN HOLE LOGG/NG ~ ~ Sak River 1- Open Hole Evaluation Program Co Mode Log Name 12 1/4" Surface Hole 8 3/4" Production Hall MWD DM (Dir Module) Surf - 4027 MD 4027' - 12,978' MD Hall MWD PWD Surf - 4027 MD 4027' - 12,978' MD Hall LWD GR . Surf - 4027 MD 4027' - 12,978' MD Hall LWD EWR Resistivity , Surf - 4027 MD 4027' - 12,978' MD Hall LWD ALD Density None 4027' - 12,978' MD ~;, Hall LWD CTN Neutron None 4027' - 12,978' MD , SLB OH WL Dipole Sonic None TBD SLB OH WL MSCT - Mech Wall Coring None None SLB OH WL MDT - Formation Testing None Zones of Interest SLB OH WL Other None None Open Hole Evaluation Program 10.2 CONVENT/ONAL CORING Conventional coring may be performed based on the presence of hydrocarbon shows in the target formations. Baker Inteq's HT Series core barrel (6 3/" OD by 4" ID) with aluminum inner tubes will be utilized. The core bit will consist of a BHI ARC425 (IADC M354) 8 3/4" PDC. The ARC425 is designed to core at optimum penetration rates (> 50 fph) and to produce uninvaded core. A detailed conventional coring manual is included in the appendix. 10.3 MUD LOGG/NG Sak River 1- Open Hole fvaluation Pragram Co Mode Log Name 12 1/4" Surface Hole 8 3/4" Production Hall Mud ~og Gas Detection ~ Surt - 4027 MD 4027' - 12,978' MD Hall Mud Log Samples - Every 30' Every 30' (10' in zones of int) Hall Mud Log Drilling Parameters ` Surt - 4027 MD 4027' - 12,978' MD Hall Mud Log Other None None Mud Logging 02006 Prepared by Signa Engineering Corp Page 39 • ~ 6rooks Ranqe Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 11 Well Control 11.1 MAX/MUM ANT/CIPATED SURFACE PRESSURE CALCULAT/ONS MASP is determined as the lesser of the following: Surface pressure at which breakdown occurs at the previous casing seat with a gas gradient (0.11 psi/ft) to surFace. Formation pore pressure at hole section TD less a gas gradient to the surface. Casing Depth Hole Section Frac Gradient at Pore Pressure Pressure at Pressure Casing Size Breakdown w/gasfrom MASP (psi) (TVD) Depth (ND) Shoe (Ppg) at TD si TD si 16 80 3478 11.0 8.6 37 1173 37 9 5/8 3478 11290 13.6 9.6 2077 4394 2077 , Maximum Anticipated SurFace Pressure Maximum surface pressure of 2077 psi would occur at casing seat breakdown with 9 5/8" surFace casing set at 3478' ND and the well depth at 11290' ND with the hole evacuated to a gas gradient with 9.6 ppg pore pressure. ~ Wellhead and BOP equipment will be designed with a minimum working pressure of 5000 psi. 11.2 GENERAL WELL CONTROL PLAN A 13-5/8" Triple Ram Preventer rated for 5,000 psi with a 13 5/8" 5,000 psi annular preventer will be used on this well. A 21 '/4' diverter BOP with 16" diverter line will be used on the surface hole for shallow gas and/or water flow control. All BOP's and the accumulator should be thoroughly serviced and tested on location. Leaking accumulator valves should be replaced before drilling commences. All accumulator bottles should be checked for pre-charge pressures and volume requirements should be confirmed. A Top Drive safety valve will be used and a stabbing valve (full-opening TIW valve) will be kept on the derrick floor at all times in the open position. Be sure the closing handle is available and its location is known to all crews. Pressure test the entire BOP stack and choke manifold with clear water to 250 psi and 5000 psi (2500 psi for annular) upon initial installation and every 7 days thereafter. An additional test should be performed anytime the BOP stack is repaired or otherwise altered in any way. Record results in the IADC report and in the morning report sent to the office. Each test should be held for 10 minutes minimum. • 02006 Prepared by Signa Engineering Corp Page 40 ~ ~ Brooks Ranye Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 11.3 BOP DR/LLS BOP drills are essential to familiarize drill crews with the sequence of events involved in shutting in a kick, and their individual responsibilities. They must be held on a routine basis as frequentty as required to bring the crews' response time down to a minimum, hole conditions permitting. Once the Drilling Supervisor and Contractor Toolpusher are satisfied with the standards set by the crews, kick drills will be conducted at least once a week. 11.3.1 KICK WHILE TRIPPING This drill will be conducted when the BHA is inside the last casing string to avoid the possibility of differential sticking. Without giving prior notice, the trip tank float is raised by the Toolpusher or Drilling Supervisor to simulate an influx. The driller is expected to take the following steps to shut in the well. • Stab and make up drill pipe safety valve, close it. • Close the annular preventer. • Open the HCR valve. Chokes should be in closed position. • Start recording pressures, and also pit gain when stabilized. • Call toolpusher and, inform him that the well is shut in. • Record the time for the drill on the IADC drilling report ~ 11.3.2 KICK WHILE DRILLING This drill can be conducted in either cased or open hole. However, if the drillstring is in open hole, the well will not be shut in. The choke is closed in for drilling. The float in the active pit is raised to simulate an influx. The driller is expected to detect the gain, and take the following steps: • Pick up off bottom, stop pumps, check for flow • Report to Toolpusher. ~ On the next trip out of the hole, with the BHA in the casing, the top drive can be made up, circulation resumed, and the following procedure used to complete the drilL• • Close annular and open HCR valve. • Record pressures. ~ Call toolpusher and inform him that the well is shut in. Record casing and drill pipe pressures. • Record time taken to complete drill and record on the IADC report. ~ 02006 Prepared by Signa Engineering Corp Page 41 ~ • ~rooks Ranqe Petroleum a subsidiarv nf A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 11.3.3 DIVERTER DRILL Particular attention will be paid to crew response times when drilling surface hole and the well control plan is to divert if a kick is taken. If shallow gas is encountered, a kick can rapidly develop into an uncontrolled blowout if action is not taken quickly. p~it~r ta spud, a diverter drill must be practiced, and times recorded in a similar manner to a BOP drill. L7iverter d~ilts can be simulated after spud, bu# equipm+~nt sh~utd nQt ~ctually be f~nctioned, • Diverting at surtace: • Space out drill pipe so that the top drive IBOP is above rotary table. • Open diverter lines (Auto sequence) • Close diverter element. ~ Record response time. 11.3.4 $LOW CIRCULATING RATES Slow circulating rates are recorded to give an estimation of what the circulating pressures will be at the lower circulating rates during the displacement of a kick. A kick will be displaced from the hole at a pump rate considerably slower than the normal circulating rate for number of reasons: • To minimize the pressures exerted on open hole and on surface equipment. i • To allow adequate degassing of mud returns. • To allow sufficient time to weight up mud to displace the kick and to weight up light returns. • To allow the choke operator time to react to pressure changes as the kick is circulated out of the hole. SCR's will vary with annular pressure losses, and must be taken whenever there is likely to be a change in annular pressure losses. This means SCR's should be taken: • Once a tour, or every 1000 ft drilled, whichever is most frequent. • When a new bit or nozzle configuration is run. • When the BHA is chanced. • When the mud weight is changed, or if there is a significant change in mud rheology. The SCR is used, with the initial shut in drill pipe pressure, to calculate the initial circulating pressure when circulating out a kick. 11.4 K/CK DETECTION The following section should be posted in the rig floor dog house and reviewed with each drilling crew. ~~ 02006 Prepared by Signa Engineering Corp Page 42 ~ • Brooks Ranae Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ A kick can be taken, with no prior warning, at any time when drilting. Crews must be alert to the possibility at all times. The main indications of a kick or the potential for a kick are: Mud Loggers & Gas Detection in Mud returns - Gas in mud returns observed by the mud loggers should be monitored closely. This is especially important in surface hole since gas ~eadings may be the only indication that a potential gas zone has been penetrated. If gas readings are noted, also analyze LWD Resistivity measurements for any indication of gas shows. Mud loggers should immediately notify driller and company men when high gas readings are observed, especially in surface hole. • Drilling Breaks - One of the first indications that a kick is about to be taken. A drilling break will usually indicate that a more porous, permeable formation has been penetrated, with the possibility that an influx will be taken if the mud column is underbalanced. It is policy to flowcheck all drilling breaks. • Change in pump speed or pressure - If an influx occurs while drilling, the fluid column in the annulus becomes lighter and the mud in the drill pipe begins to u- tube, at this point the driller may observe a pressure drop and an increase in pump strokes. ~ • Hookload Increase - Displacement of drilling fluid with an influx of hydrocarbons will reduce the buoyancy of the drillstring, causing an increase in hookload. However, by the time a reduction of string weight is noticed, a considerable influx will already have been taken. • Pit level Increase - The most reliable indicator of a kick is a gain in pit volume. Therefore it is critical that there is good communication between the Driller and pit crew. Mud must not be added to, or transferred from the active system, or any solids control equipment operated without the driller's knowledge. Any pit level increase must be flowchecked. A kick may occur during a connection due to the reduction in ECD when pumps are shut down. Detection is made more difficult by the volume of mud from the flowline returning to the pits. It is important to be aware of how much this return volume is on a connection so that any additional influx can be detected. Mud loggers should carefully observe the rate of increase in pit level during a connection, as a faster rate of return will be the first indication that a kick is taking place. • Return Flow Increase - An increase in return flow is a good kick indicator while drilling and, if it can be detected, will provide the first waming. Incorrect fill up volumes on a trip - Most kicks occur while tripping. Hole fill-up volumes on a trip must be carefully monitored and a trip sheet filled out. 1~J 02006 Prepared by Signa Engineering Corp Page 43 ~ ~ Brooks Ran~e Petroleum a su6sidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ • Gas Cut Mud - If a small influx was taken and no pit level increase detected, the first indication that a kick has occurred may be gas-cut mud at the flowline. However, gas-cut mud in itself does not necessarily mean that the well is kicking, as the gas may be from drilled cuttings. 11.5 WELL SHUT IN METHODS When a kick is detected, the objective is to shut the well in safely with minimum influx volume. The shut in procedure and choke manifold alignment will be agreed with the drilling contractor in advance, and practiced in drills until every crew member is familiar with his responsibilities. The fast shut in method has been adopted as standard company procedure. 11.5.1 DIVERTING When drilling surface hole the normal indications of a kick may prove unreliable. Large diameter hole is drilled, penetration rates may vary considerably, and mud will probably be added continuously to the system. The most reliable kick indicator is a differential flow sensor. Reaction time is minimal and crews must be alert at all times to the possible presence of shallow gas. At first indication of flow, the following procedure should be initiated. • • Increase to maximum pumping rate. • Open diverter line. • Close diverter element. • Shut down all machinery and other sources of ignition if possible. • Post a watch for evidence of gas breaking out outside the conductor 11.5.2 BOP FAST SHUT-~N The choke is CLOSED while drilling. If a kick is suspected: Pick up off bottom, stop pumps, flowcheck. Close annular and open HCR valve. Record pressures 11.5.3 $HUT-IN PERIOD Pressure Recording - Once the well is shut in, the drill pipe and casing pressures must be recorded at one minute intervals. Pressures will usually stabilize quite quickly, depending on the pressure and permeability of the flowing formation. Once pressures have stabilized, any further increase in pressures is due to migration of the influx up the hole. The shut-in drill pipe pressure (SIDPP) is used to determine the pressure of the kicking • formation. If a kick is taken with a float valve in the string, no SIDPP will be indicated, 02006 Prepared by Signa Engineering Corp Page 44 ~ ~ Brooks Range Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska • as the valve will close against the pressure. The SIDPP can be determined by slowly pumping down the drill pipe, carefully monitoring both drill pipe and casing pressure. Once the pressure equalizes across the valve it will open, and a change in rate of pump pressure increase will be noticed. The mud pump is then isolated at the standpipe and the SIDPP recorded as the pressure observed immediately before the valve opened. If the casing pressure starts to rise, the pump is stopped immediately. 11.5.4 FLOW CHECKS Flow checks should be conducted as determined by the Drilling Supervisor. If the well is suspected to be flowing, the following procedure should be implemented immediately: • Pick up such that any tool joint is clear of the BOP's • Shut down the pump • Check for flow. If the well is flowing - • Close the Annular Preventer • Open the HCR valve • Choke should be closed • Record the Shut-In Drill Pipe Pressure (SIDPP) and the Casing Pressure (CP) or annulus pressure immediately. ~ tf the BC1P st~~k is ctosed to prev~nt flow fram the;well, 'the At'7CC~ ~hould be rrt~tified. 11.6 K/LL METHODS 11.G.1 WAIT AND WEIGHT METHOD The Wait-and-Weight method involves circulating out the kick with kill weight mud in one circulation. The Drillers Method is a finro circulation method. On the first circulation the influx is circulated out of the hole with the existing mud weight using the choke to maintain the required pressure differential. On the second circulation, kill weight mud is circulated round the hole. 11.6.2 THE DRILLERS METHOD The Drillers method may be used if it is not practical to start the Wait-and-Weight method. This could be the if there is insufficient weighting material at the rigsite to weight up the system to the kill weight required, or if the mixing system on the rig was not capable of keeping pace as the kick is displaced ~ 002006 Prepared by Signa Engineering Corp Page 45 ~ ~ • Brooks Range Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.7 WELLHEAD VetcoGray 16"X9 5/8"X7" 5K psi Type MB-230 Multibowl Wellhead System ~ U • 02006 Prepared by Signa Engineering Corp Page 46 • C~ • • • 8rooks Ranye Petroleum a subsidi~[v of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.8 DIVERTER SCHEMATIC -345"- -Top ot Rotary Tabla~ -316"- -Btrn M Rotary Table- ~291"~ ~Top of 8011 Nippl9~ -263'- -Btm o! Crane Rafi Beam~ -249"- -Est C%L of Fla.~~lin~ -185"- -Top o( 27 ';:" Hydril- ) -132"- -Top ot D~verter Spool- ) -55"- -C!l of 16" Outlet -46"- -Top M Vetco Diverter Head- -36' - - •Cellar TopiGravel Grode- - ~ e -16°- ~ -16" CorMuctor Cutofl- ~ ~ (V -2ero- .. ~ Top of Rig Mats- `j W -6 - Top of Ice-- T ~ --za - T~na~e- ~' T -ze~a- _29••~ -5A"- -g2^~ ~95°~ ~ -15p ~ -213'- I ,~-280"~ a ~'-z~°- _ ~^~ -357"- -~9"- Nabors Rig 16E - 21 '/4" Diverter System on 16" Conductor 02006 Prepared by Signa Engineering Corp Page 47 . -Top of Rotary -316"- -291 "- -Btm of Rotary Table- Top of Bell Nipple- ~ ~ ~ M i~ ~ ~tm of Crane Rail Beams- ~ -Est C/L of Flowline- o, Top of Hydril-~ ~ Hvf~RIL -Top of Upper • -141 "- -Top of Mud -118"- -Btm of Mud Rams - Top of MB -36"- - •Cellar Top/Gravel Grade- - ~ -16"- -i6" Conductor Cutoff I O -Zero- ~ Top of Rig Mat~ --6"- Top of Ice- ro --24"- Tundra- y T N ~ fV N y -Zer~ I -29"_ -54"- ~A~"~ ~85"~ Flowline ~, -90"- _ W -101"- -150"- Rams 13 518' S,000 psi BOP System Rams b s x . -204"- cros _ ` ".~ -227"- I OSA-13518' % 11' SK ~'zb`~"~ ~ ~ -276"- ~ -296"- -309"- Vetco Multibowl System i i• s,ooo Ps~ -329"- ~~,Qrj^~ -351 "- -369"- • Nabors Rig 16E BOP Stack 02006 Prepared by Signa Engineering Corp ~ • Brooks Range Petroleum a subsidiacv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.9 BOP STACK Page 48 ~ __ _ '~~~I- ~a,~ ~,5, ~„ ~«„PO.~ ~,.; a ~~~~ ~ .. 1z.57.~9.ta.zc 6trE~..,yT,~~-Ea~tn:,(~.iiJ~)PS~M,rM,dr~yvnke'~~ ~ . . - - . . ~ . . - ...... 1&19 AkErnyTl'P9Eit-16'-t0.000Pti11.1xwalC~tt'v.ahw~ . . . .:~4.5.9.t0.t216.t'2t DERIMTyTaGM~+iA'-Stx+[WSll.tanuali,aa.'.:al:~ ttf Tn-Ft.:?.t tr•.in....°.-.Pti1F.~r..wH~;Aiaulr ~:'h;L? . n :a~ivn-i.ia>..i ~ , n • r:~.r, ~ ~~;i ~.~.u..ia ~-.h:.t.= ~~ t0 5 16 12 f ,~ 9 21 J ~ t:i~ ~ ~d~'y . . . ~. . . 15 3 8~~ ~d ~ K ~ ' ~,~ '~ ~ ~ lil ..1 ~ p ~ I I ~~d 6 .._ . . . _ 'A'FaeHu~Ale':~.tr... 18 ~'-~h 1 ''. I ~ - - t~hrmalF~ Op?n .. , . . , i .. ~ Red HanAk ':'aMFs w~ycG•~i ~.~ . DAte~. r._a-.iJ R.r... ~3 ,aK~~.,.:; ~ Nabors 16E 3 1/16" 10K Choke Manifold C~ ~ ~ • Brooks Ranqe Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.10 CHOKE MANIFOLD 02006 Prepared by Signa Engineering Corp Page 49 ~ ~ Brnoks Ranae Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 1~ Rig 12.1 R/G SPECIF/CAT/ONS • Mast - Dreco Model M14225-133013 beams leg mast. Two skidding beams each 7'6"W x 3'0"H x 50'0" ~. 1,330.000 Ibs gross nominal capacity. Air powered adjustable casing stabbing board and safety belt for stabber. • Substructure - Dreco Model Slingshot elevating substructure system. This assembly is designed to set in all floor equipment. connect mast, set in both floor cantilevered doghouses and install 50' high wind walls at a safer working elevation of 6'6" from ground level. The entire mast floor is then elevated to the drilling level of 29' from ground level by means of finro large low speed hydraulic winches. • Drawworks - Oilwell E-2000 1-3/8" Lebus grooved drum, 4 forward and 2 reverse gears • Traveling Block/Hook - Oilwell A500 500-ton six 1-3/8" grooved x 60" OD sheaves with Byron Jackson 5500 500-ton Dynaplex hook • • Rotary Table - Oilwell B37-1/2" opening, capacity 650-ton (dead load) and provides a nominal 50 or slower rpm in low gear or a nominal 185 or slower rpm in high gear. • Top Drive - Varco Model TDS-3 rated at 36.000 ft-Ib continuous torque. • Engines - Caterpilla~ D-398 900 HP each at 1200 rpm (sea level), five turbo charged, after cooled, diesel engines. Each unit equipped with arctic automatic thermostatically controlled jacket water heater systems. • Generators - Kato 700-kw 600-vo(t 1200 rpm non-sparking; generators, single bearing with automatic overload protection system and automatic thermostatically controlled electric heating elements. • SCR Power System Ross Hill retrofit of a GE Generation three SCR System complete with 5 generator control bays and three 2000-amp SCR bays with multiple assignments • Main Mud Pumps - Two Oilwell A-1700-w/ 5000 psi fluid end. • 02006 Prepared by Signa Engineering Corp Page 5Q ~ ~ Brooks Ranae Petroleum a subsidiarv of AVCG_ LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska ~ 13 Gas Detection Combustible gas and H2S gas detectors will be provided by Nabors Alaska and will be located on the rig as per regulatory requirements. ~ J ~~ 02006 Prepared by Signa Engineering Corp Page 51 • ~ Brooks Range Petroleum Corporation a subsidiary of AVCG, LLC Robert P. Crandall Alaska Oil & Gas Conservation Commission 333 W. 7th Avenue, Suite 100 ~, Anchorage, Alaska 99501 ~ ~ ~ ~ ~ j~.,.~ ~~ ~ fi ~ n~, ,,~ ~ d " ~ gF,//~ ,~ A ~f )~./~~j ` ,~. . . l~ ~:~fr ;~, , ) Bob: ~ ~,, ~~, ~~~ ~ R ,/~ ~ {s. N G.O~l~ { ~qr 1 J .. ~ ~~~~~~ ' ~ ~~~ ~~fa ry~q .kii2~l~"j~i ~~~~Ml~ Dec.21, 06 AncFi~ra~~ Attached you will find a revised Exploration Drilling Application or the Sak River #1 well. As we discussed by phone, Brooks Range Petroleum is si ply changing the order of the Sak River drilling program so that we drill the `crestal ell' first, and then, if justified, the higher stepout sidetrack. That is, the former ak R. #1 is now Sak R. #lA, while the former Sak R. #1A is now Sak R. #1. Attache s the Application far the Sak R. #1 well; the Sak R. lA Application is in preparation There are no scope changes involved - the surface and bottomhole locations as w 1 as the casing programs are the same. The wellbore trajectory has been adjusted sl' htly to the east to aim for the Sak R. #1 bottc~mhole location. Lthink this explanation ill be justified when you read the Application and drilling plan. As before, information is provided as requi d'ny 20 ACC 25.005(a) and (c}, and includes the following: 1. Sak River 1 Form 10-401 Ap ication far Permit to Dril1 ~er 20 AAC 25.005 (a) 2. Fee of $100 payable to th State of Alaska per 20 AAC 25.005 (c) (1 j was submitted w' the original applications 3. Evidence of bonding s required by 20 AAC 25.005 4. Sak River 1 directi nal plat showing fihe surface and bottom hole location proposz~ for the well per 20 AAC 25.005 (c) (2) 5. I~ia~rams and escriptions af the BOP and diverter equipment to he used as equired by 20 AAC 25.035 (a} (1) and (b) 6. Sak River casing and cementing program is attached as per 20 AAC 5.030 7. Sak R' er 1&~rilling fluid prc~grai~~ is included as set forth in 2Q C 25.033 8. S llow seismic an~lysis as required ~y ~0 r'~AC 25.~6I(a) is 9. Based on surr~undirt~ d~~ta, ~{2~ ~:k~~~ici ~ot be encou~7tered in this well. E~2~ nzanifari~~~ equipt~i~~nt will ~~e ~~o~id~d and functianing b~~ Nabars Aiaska Dri31ir7g ~~~, ~a~r ~heir standard operating procedures. , ""1 ~ "'y P d ~ ,!' ~'~~ ~ a ~ ~~ ~ ~~ 1400 WestBenson Boulevard, Suite 510, Anehorage, Alaska 99503 Tel: 907339.9965 Fcix: 907.339.9961 ~ ~ We are aiming for a February 7 spud date. If you have any question or require further information, please contact me at 865-5802 or Mr. Larry D. Smith (830) 832-5605. Thanks, ~~v~~ Douglas S. H ti gs V.P. of Expl on Brooks Range Petroleum Corp. ~ STATE OF ALASKA ~ ~~'"~ ~ ~~~ ~ ALASKA OIL AND GAS CONSERVATION COMMISSION ~~~ ~~ 2~~~ PERMIT TO DRILL 20 AAC 25.005 ' iAIeSk2 (1i~ lu' f:~r rnne i7,...~....:__~ 1a. Type of Work: Drill ~ Redrill Q Re-entry ~ 1b. Current Well Class: Exploratory Q Stratigraphic Test ~ Service ~ Multiple Zone ~] Development Oil ~ Development Gas ~ Single Zone ~ 1c. Spec'rfy'rf;well is proposed~o~~~~r - Coalbed Methane ~ s~drat s~ Shale Gas ^ 2. Operator Name: Brooks Range Petroleum Corporation , 5. Bond: Blanket Q Single Well ~ Bond No. LPM8842179 11. Well Na and Number: Sak Riv 7 3. Address: 1400 W. Benson Blvd. Suite 510, Anchorage, Alaska 99503 6. Proposed Depth: M~: 13 322 T~~~ 11 290 12. F' d/Pool(s): u efined 4a. Location of Well (Govemmental Section): Surtace 1900' FNL 81630' FEL Section 1- T12N - R12E 'l,~ 1--` 7. Property Designation: ADL~90431 Top of Productive Horizon: N/A 8. Land Use Permit: u-S24983 13. Approximate Spud Date: Februa 7 2007 Total Depth: 1684' FSL 81089' FWL SecHon 36 - T13N - R12E V~ 9. Acres in Property: 2,560 14. Distance to Nearest P~~Pe-tY~ 1,089' 4b. Location of Well (State Base Plane Coordinates): SurFace: X- 626,647 Y- 6,006,061 Zone- 10. KB Elevation (Height above GL): 30 feet 15: Distance to Nearest Well Within Pool: $~630' 16. Deviated wells: Kickoff depth: 4050 feet Maximum Hole Angle: 52.5 degrees 17. Maximum Anticip ed Pressures in psig (see 20 AAC 25.035) Downhole: 4512 Surface: 1832 18. Casing Program: Spec~cations Top - etting Depth - Bottom Cement Quantiry, c.f. or sacks Hole Casing Weight Grade Coupling Length MD ND MD ND (including stage data) 24 16 0.495 WT NA Weld 80 27 107 107 140 CF Artic Set 12.25 9.625 40 L-80 BTC-M 3975 5 4000 3067 536 sx ArticSet Lke, 435 sx G 8.75 7 26 L-80 BTC-M 13297 25 25 13322 11290 696 sx Class G i 19. PRESENT WELL CONDITION SUMMARY o be pleted for Redrill and Re-Entry Operations) Total Depth MD (ft): Total Depth TVD (ft): Plugs (meas Effect. Depth MD (ft): Effect. Depth ND (ft): Junk (measured): Casing Conductor/Structural Surface Inte-mediate Production Liner Perforation Depth MD (ft): Perforation Depth ND (ft): 20. Attachments: Filing Fee ~ Property Plat BOP Sketch Q Drilling Program Q Time v. Depth Plot Q Shallow Hazard Analysis Q Diverter Sketch ^~ Seabed Report ^ Drilling Fluid Program Q 20 AAC 25.050 requirements ^~ 21. Verbal Approval: Commission presentative: 22. I hereby certify that the foregoi is true and correct. Printed Name Dou a S. Hastings Signature Date Contact Title V.P. Exploration Phone 907.865-5802 Date Dec. 21, 2006 Commission Use Only Permit to Drill Number: ~O6 ^/6~ API Number: 50-~?9-~~~~6 ~ o~ Permit Approval Date: See cover letter for other requirements. Conditions of appr val : If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shal Other: Samples req'd: Yes No ^ Mud log req'd: Ye No~ HZS measures: Yes No^ Directional svy req'd: Y~ N^ APPROVED BY THE COMMISSION DATE: , COMMISSIONER ~~~~~~~~~ Form 10-401 Revised 12/2005 ~""~k '~' "~ Submit in Duplicate I~J ~ Brooks Ranqe Petroleum a subsidiap~ of AVCG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska LLC Brooks Range Petroleum Corporation a subsdiary o/ A VCG. LLC Brooks Range Petroleum Corporation A subsidiary of A VCG, LLC Sak River No.1 ("SR1 ") Ivishak Exploration Well Drilling Program ~{ _ :; :,; , rp ~. :. ,~ .i _ ~.: ~: ~ . . # ~•' ~ ~~ t ,.~r 1 +~' ~ ~y _ ~'ra~.: - ~ ~ ~ • ~ y+ K ' 4 ~ ~ { ~ ~' ' ~':a1 ,..y... '~ n Nabors Alaska Rig 16E December 2006 02006 Prepared by Signa Engineering Corp Page 1 ~ ~ Brooks Ranqe Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 1 INTRODUCTION ....................................................................................................... 4 2 GENERAL INFORMATION .......................................................................................5 2.1 WELL INFORMATION .............................................................••••••••.............•--..........................5 2.2 LOCATION PLAT .................................................................................................................... ..6 2.3 WELL MONTAGE .................................................................................................................. ..7 2.4 OFFSET INFORMATION .......................................................................................................... ..8 2.5 DRILLING RISK ASSESSMENT ................................................................................................ 1 O 2.6 GENE~L WELL Pu~~r .......................................................................................................... 11 2.7 DIRECTIONS TO LOCATION .................................................................................................... 13 3 GEOLOGY & MAPS ................................................................................................14 3.1 FORMATION TOPS .................................................................................................................14 4 TIME & COST ESTIMATE .......................................................................................15 4.1 DEPTH VERSUS DAYS ...........................................................................................................15 5 DETAILED OPERATIONS PROCEDURE ...............................................................16 5.1 PLUG AND ABANDONMENT PROCEDURE .................................................................................16 5.2 WELL TESTING ................................................................••••................................................17 6 WELL PATH DESIGN ..............................................................................................18 6.1 DESCRIPTION .......................................................................................................................18 6.2 SURVEYtNG ..........................................................................................................................18 6.3 SPERRY DESIGNS ................................................................................................................18 6.4 WELL PROXIMITY .................................................................................................................19 7 DRILLING FLUIDS AND PRESSURE GRADIENTS ............................................... 20 7.1 PORE PRESSURE .................................................................................................................20 7.2 FRAC GRADtENT 8o LEAK OFF TESTS .....................................................................................21 7.3 HOLE STABILITY ...................................................................................................................22 7.4 WELL PRESSURE DESIGN .....................................................................................................22 7.5 TEMPERATURE ....................................................................................................................23 7.6 DRILLING FLUIDS PROGRAM .................................................................................................24 7.7 SOLIDS & FLUID WASTE DISPOSAL .........................................................................................28 8 CASING DESlGN .................................................................................................... 29 8.1 PLANNED CASING PROGRAM ................................................................................................29 8.2 SAFETY FACTORS ................................................................................................................ 29 8.3 16° CONDUCTOR CASING ......................................................................................................30 02006 Prepared by Signa Engineering Corp Page 2 ~ ~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 8.4 9 5/8° SURFACE CASING ....................................................................................................... 30 8.5 7" PRODUCTION CASING ....................................................................................................... 32 9 CEMENT DESIGN ................................................................................................... 34 9.1 9 5/8° SURFACE CASING CEMENTING DETAIL ......................................................................... 34 9.2 7° PRODUCTION CASING CEMENTiNG DETAIL .......................................................................... 36 9.3 ABANDONMENT CEMENTING ................................................................................................. 38 10 EVALUATION PROGRAM ...................................................................................... 39 10.1 OPEN HOLE LOGGING ......................................................................................................... 39 10.2 CONVENTIONAL CORING ..................................................................................................... 39 10.3 MUD LOGGING ................................................................................................................... 39 11 WELL CONTROL .................................................................................................... 40 11.1 MAXIMUM ANTICIPATED SURFACE PRESSURE CALCULATIONS ............................................... 40 11.2 GENERAL WELL CONTROL PLAN .......................................................................................... 40 11.3 BOP DRILLS .................................................................................................................... 41 11.3.1 KICK WHILE TRIPPING ..................................................................................................................... 4'I 11.3.2 KICK WHILE DRILLING ..................................................................................................................... 41 11.3.3 DIVERTER DRILL ............................................................................................................................. 4Z 11.3.4 SLOW CIRCULATING RATES ............................................................................................................. 42 11.4 K~CK DETECT~oN ............................................................................................................... 42 11.5 WELL SHUT IN METHODS ................................................................................................... 44 11.5.1 DIVERTING ...................................................................................................................................... 44 11.5.2 BOP FAST SHUT-IN ........................................................................................................................ 44 11.5.3 SHUT-IN PERIOD ............................................................................................................................. 44 11.5.4 FLOW CHECKS ................................................................................................................................. 45 11.6 KILL METHODS ................................................................................................................... 45 11.6.1 WAIT AND WEIGHT METHOD ............................................................................................................ 45 11.62 THE DRILLERS METHOD .................................................................................................................. 45 11.7 WELLHEAD ......................................................................................................................... 46 11.8 DIVERTER SCHEMATIC ........................................................................................................ 47 11.9 BOP STACK ........................................................................................................................ 48 11.10 CHOKE MANIFOLD ............................................................................................................. 49 12 RIG 50 12.1 RIG SPECIFICATIONS .......................................................................................................... 50 13 GAS DETECTION ................................................................................................... 51 02006 Prepared by Signa Engineering Corp Page 3 • ~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 1 Introduction Sak River Well 1 will be drilled from an ice pad near Gwydyr Bay less than 1000' from the coast line. The well will be directionally drilled to the northeast on a 45.8 degree azimuth to reach target zones 5,259' from the surface location. To accomplish this, the well will be kicked off at 500' from surface, angle built to 37.4 degrees and tangent held to a total measured depth of 12,978' (11,290' ND). The "S" shaped welf is dropped to vertical at 10,378' MD (8,690' ND) prior to penetrating the Kuparuk C sand. The lower 2,600' MD of the wellbore will then be dri ed vertical through the Kuparuk, Kingak and Ivishak formations. ~ `~'uC~o ~~c~~ e-8~' ~~--~ y ~ ~~ ~ Surface location will be located in t e~. rtheast corner of Section 1, T12N, R12E and bottomhole location will be in Sectio 25, 13N, R12E. Projected commencement of the drilling operation is mid January 200 . After drilling to total depth and evaluating the hole, the well will be abandoned or 7" production casing set and the well production tested. Nabors Rig 16E, a 2000 HP Dreco Slingshot design, will be used to drill the well. 02006 Prepared by Signa Engineering Corp Page 4 • ~ ~rooks Range Petroleum a subsidiarv of AY~G. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2 General information 2.1 WELL INFORMATION Sak River 1 Well Information Operator Brooks Range Petroleum Corporation Well Name Sak River 1 Well Type Directional Exploration AOGCC Permit Number To be assigned API Number To be assigned State Alaska Surface Location Section 1- T12N - R12E Surf Dist from Section Lines 1900' FNL and 1630' FEL BHL Loc Section 36 - T13N - R12E ( BHL Dist from Section Lines 1684' FSL and 1089' FWL Map System US State Plane 1927 System Datum Mean Sea Level Geo System Nad 1927 (NADCON CONUS) Map Zone Alaska Zone 04 Surf Northing Coordinate 6,006,061 Surf Easting Coordinate 626,647 BHL Northing Coordinate 6,009,792 BHL Easting Coordinate 630,356 Azimuth 45.8° Vertical Section 5,259' Area Gwydyr Bay Objective Kuparuk C, Triassic Total Depth (MD) 12,978 Total Depth (ND) 11,290 Elevation 10' GL, 40' RKB (Estimated) Rig Nabors Alaska 16E TD BHST (Deg F) 268 °F ~~~ TD BHP (psi) 5577 psi ~5~ y ~~~ ~-~5 ah 4to ~~ 02006 Prepared by Signa Engineering Corp Page 5 i • Brooks Ranae Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.2 LOCATION PLAT NOTES: THIS Barrowf;l, PROJECT~ 1~ COORDINAI ES SHOWN HERi ON. BASE-O UPON GAf2Mlh GPS ;~,._,. , OdSERVAf IOV `~~ l ~ ~ % . ~ ~:- Kaktovik . ,~ ~.z n.,-. ..I 2J ALL DISTANCES M1D ELEVATIONS ARE IN U.S, SL'RVEY FEET • *~"- - ~. • y `` NUIqSUt 3) PROTRACTED SECT~ON LI4F5 SFIONnr MEREON ARE APPROXIMA7E A4D FOR ~EFER~NCE ONLY 1; RIG PAD AREA STAKEO 18' ABOVE hqGHEST POI~T ' . , !i~ EAST SID"c Of- ~AK ~N'R PA(J IS GRFAT~R TMAN :xY~ hft I ~~ ~H«~ 5~,~~FU~ ~ PA~~ `° • , ~ . ~•.p~~.,~ .. .. '__..~... . ~ ~2~. +~.-... W n~• li<ao.wr•F In., Ial Cur,~oraUnn C.~nyrary VICINITY MAP - NOT TO SCALE SAK RIVER PAD ?. ' 2 N.. R. ? 2 E. SECTION 1 ~ LEf3EN0 ~ At~ . _~- ~~~_~ .AT~., .~ Sf ' E" Ss'~~Kt: W/CRQSS UTH ~ . ~'" °'~D o NAD 27 zorvF a .~. ~' '~ WELL 3 . A ~ J ~ (°` LAT:7U'24'19.5~ V ~ ~~~ ~~, p I CN1G: 148`SS'17.r'rY T N = ti.COG,:kiC.~T? L = fi2(i 647.(Yl ~ ~ ~ ~ NE CORNER OF PAD _,.\ ycF~~ . ~ inr. ~u ls'~t.a• v ~l . ~ ~ ONC~ taH'Srs9.:Y ~v i ~. ~'~ J~ ~ N=6.f(Xi.363.20 L, _ ~ ~ n E = o2F.8D7,92 ''~ ~~ ~'~ `, SE CORNER OF PAD ~ . r: ..~ ~~1 _c1 , LAI: /f."1.6783' Y ~ ~w~ ~'' LONC; 148'ST52,G".J :,c.. - ~~ rm \ ~. . N = 6 G05.9M14.60 ~ .. ; . E ~ 627.08'.37 f~~~~: ~ ~ NW CORNER OF PAD ~. LAT:7025'29,9' N ~P 2 ~: ; L(NIG: 14~'S8"2.3"4l I ~ N ~ 3.CS~6.959.75 ~ ~ F. = ti?8. SR~.37 I SW CORNER OF PAD TO ~ ~ LAT: 7U'2525.T N NORTH i ONG: isd'S8':w.S :v SHORE PA~ N=6CU.S~it.ts E = s~.~.~r BRO~KS RANGE AS STAKFD DRAWING OF SAK RIVER PAD ALPINE, AJISKA PETROLEUM ~~: , ,., _.~~:~:~. :, _ -~.~ , ,~ , ' - ii_- =G e. r _ ~, 02006 Prepared by Signa Engineering Corp Page 6 ~ ~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LL Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.3 WELL MONTAGE ~~ ~. ~,c i'~'~. Dritling Montage N E Field: Gwydyr Bay surtace 6,006,061 626,647 Well: Sak River 1 BHL 6,009,792 630,356 State: Alaska azws 45.8 deg I 5259 feet Formetb~ Depth RKB ) Casing Proyram ~ ~ W ~ ~ Dev Azlmuth Mud Pore Frac md (R) tvd it) ( ~ ~ ; m Oeg Deg Wsight Presaure Pressure --- ° ° - fi - -- - KOP -- 500 500 ~ F - - q ~ __ U ~ 1000 995 :r c ~ 14.5 45.8 w O ~ m C ~ ~ ~ - Pertnefrosl 1656 1590 p p a ~ « 3 ; o ~ 2000 1888 m ~ o -°i 37.4 45.8 + ` o z $ ~ ~ 9 ry A ~ J ~ ~ ~ LL' p f/1 ._ a (7 n 3000 2662 ~ o e ~j ~ 37.4 45.8 _ _ _- -. . .. m g a p Y 9 5/8' Ca 4028 3478 ' 37.4 45.6 9.5 B.8 13.6 LOT - I • ~ - -- - 5000 4249 ~ 1 37.4 45.8 1 I 6000 5043 ~ m 37.4 45.8 ~ ~ 0 9.6 B.8 v $ ~ o ~ $ 0 7000 5838 ~ ~+ o ~ 37.4 45.8 - - ~ I ' ~ U p ~ ~ ~ N o 0 m ~n ----- 9.7 - ~ B.6 -- - - - o m t ~ ° & ' ~ q 3 Z O ~ eooo sss~ - I = $ o ~ 0 3 3i.-a as.e e.s i ~ O q O ~ C = . m ~ = Q v % ~ 9.8 8.6 "_ __ .- ! ~ ~ ~ ~ M N Z' ~ ~' K IY ~ .. _._ -....._.._ ..____ .._. StaA Dro 9130 7528 ~ o a a 37.4 45.8 10.0 8.6 m C , ~ HRZ 9400 9607 7754 7940 I I J a ~? a a a ~ m 29.3 23.1 45.8 45.8 10.2 _ 8.9 ._ . _ ,~ ~ o 10000 8314 ( `-~ P 11.3 45.8 10.4 9.6 ~ i~ c ; Kuparuk C 10378 8890 ~ y~, 0.0 0.0 10.5 9.6 I 11000 9311 ~ ~ Kingak 11583 9895 I - 10.5 - _ 9.6 - - -.. 12000 10312 ~ 0.0 0.0 - - -~-- I 10.5 9.6 ~_ i I RNer Sag 1I568 i 70880 0.0 0.0 _ Ivlshak 12738 ' 11050 ~ 0.0 0.0 9.6 TD ~1193- ~ 11290 0.0 ~~ 0.0 10.5 ~ 15] Z ~~ ~ Sak River 1 Well Montage aslg``~(~~~ ~-~E aS ~U ~ ~~~ °~ ~~ rv.~ ~~~.~"~~C c~S ~~ ~ ~ 02006 Prepared by Signa Engineering Corp Page 7 ~ ~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.4 OFFSET INFORMATION Twenty exploration wells drilled between 1969 and 2000 were reviewed. The primary source of data was the Alaskan Oil & Gas Conservation Commission website. Half of the wells were within 5 mites of the SR1 location. The remainder consisted mainly of delineation wells in the Northstar Field (7 miles to NE) and wells drilled to the Midnight Sun pool on the northeast side of the Prudhoe Bay Unit (8 miles to the SE). Additional wells on PBU Pad S have been examined. A detailed mechanical cross section was prepared for these wells and is included in the Appendix. Due to the extent of the information, discussion of the details of all the wells is beyond the scope of this report; however, a review of this data is available if needed. Intermediate casing was not always set and when set, was used primarily for testing either the Kuparuk or Ivishak. Generally the wells spent considerable time cutting conventional cores which sometimes doubled the amount of time required to reach TD. ~ Comparatively speaking, wells reviewed encountered fewer drilling problems that ' normally seen in a review of this type in other areas. G~ The closest offset well to SR1 is the Cities Service Gwydyr Bay State A-1 drilled i 197 to a depth of 12210' MD with maximum deviation of 29 degrees. It was the ost problematic well reviewed in the study. Problems occurred when setting 13 3/8" ca ' at 2681' due to a centralizer coming apart and a leak in the wellhead. A LSND mud system was used; however, solids control was very poor and solids concentrations were abnormally high in the mud. File notes documented that the rig ran out of fresh water make up fluid for several days which aggravated the solids problem in the mud. Stuck pipe problems followed by hole pack off and mud losses occurred in the Kuparuk. After nine days of fishing, drilling resumed and the well was drilled through the Kingak shale to 12,005' with 10.4 ppg. The pipe stuck on a trip in the hole and the drill pipe parted while jarring. After recovering the fish, 9 5/8" casing was set. Although drilling performance was poor for this well due to poor hole conditions, shale instability and resulting breakout was probably not the cause of the problem. The open hole was exposed to a very poor mud system for an excessive amount of time. Very poor drilling practices were followed. Additionally, the rig was a kelly type rig and unable to efficiently handle the hoie problems when compared to today's top drive equipped rigs. 2.3 PRUDHOE BAY UNIT - MIDNIGHT SUN POOL The Midnight Sun Oil pool was discovered by BP in 1997 with their Sam #1 well (later re named PBU E-100. With 4441' MD of 9 5/8" surtace casing, Sam 1 was drilled at 55 degrees to 12,906' with 10.4 ppg 3% KCL LSND mud where 7" casing was set in 8'/z" hole in the top of the Sag River. Kingak shale was drilled without problems with 10.4 ppg mud. After setting casing, the well was drilled to 13282' where a 4'/z' production 02006 Prepared by Signa Engineering Corp Page 6 ~ ~ ~rooks Range Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska liner was set across the Ivishak. Overall, from spud to TD, the well averaged 458 feet per day which includes 6 days of logging at the 7" casing point. Five additional wells were drilled to develop Midnight Sun, three Kuparuk producers and finro Kuparuk water injectors. E-101 was then drilled to 13,618' MD at 66 degrees with 9 5/8" surFace casing set at 6,370' MD (4,558' TVD). 7" production casing was set at TD in a 8'/2" hole and 10.2 ppg mud. Spud to TD was 21 days. E-102 was then drilled to 10,315' MD at 43 degrees with 10 3/4" surface casing set at 4,407' MD. 7 5/8" production casing was set at TD in a 9 7/8" hole and 10.3 ppg mud. Spud to TD was 11 days. E-103 was drilled to 12,240' as a horizontal Kuparuk injector in 18 days. E-104 was drilled to 12,384' MD as a Kuparuk injection well. Maximum angle was 58 degrees. After setting 9 5/8" surFace at 5013' MD, 8 3/" hole was drilled to TD where 7" casing was run to bottom. Spud to TD took 9 days. As can be concluded from the above information, BP conducted a very successful, highly efficient drilling campaign at Midnight Sun. 2.4 NORTHSTAR Northstar Field was discovered in 1983 with the Amerada Hess - Seal Island A-1. Five delineation wells were drilled by Amerada and Shell du~ing 1984-1985. Actual field development began in early 2001 when BP drilled Northstar 27 from the newly constructed drilling island. From 2001 to early 2004, BP drilled 23 wells high angle directional wells to develop the field. All of the development wells set 13 3/8" surface casing at around 3,603' MD (3,224' ND). The first three wells drilled through the Kingak shale and set 9 5/8" intermediate at approximately 10,800' TVD in 11.3-11.6 ppg water base mud. The wells then drilled a short interval (~400') where a 7" production liner was set. BP changed the well design after the first three wells to additionally protect the Kuparuk zone. The initial design subjected the Kuparuk to the 11.5 ppg mud while the Kingak was drilled. The new design added a protective drilling liner to cover the Kingak from below the Kuparuk to the top of the Ivishak. 9 5/8" intermediate was set below the Kuparuk in the top of the Miluveach shale. The Kingak was then drilled with 11.3-13.1 ppg mud (average 12.4 ppg) to the Sag River where the 7" drilling liner was set. A 6 1/8" hole was then drilled to TD and a 4'/z" production liner set. BP's design was fo used on minimizing formation damage in both the Kuparuk and Ivishak zones. ~!~ ~/ C~.\~ ~"O G.vc~`~ S ~U.~~C c=r \ ~ ~ ~~ 02006 Prepared by Signa EngineeringPtCflor~p ~~~~ ~ Page 9 ~ ~ B~oks Ran~e Petroleum a subsidlarvofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.5 DRILLING R/SK ASSESSMENT Depthlnterval (MD) Mticipated Adverse Conditlons Precautions to be taken From To Be sure to run both pumps and keep the hole clean. Hole Cleaning Utilize sweeps on connections and as dictated by hole condibon. Control drill based on PWD readings to avoid cuttings loading. Maintain recommended mud properties. Tendency for doglegs at base of permafrost (-1600'). Permafrost Maintain tangent angle 100' above and below PF base. Possible Gght hole in shales below PF. Closely monitor dra on tri s. Diverter to be installed and function tested. Control driVl to 0 4028 Gas Hydrates minimize gas expansion at surface if hydrates present. Mudbggers to be rigged up and monitoring BG gas. Treat mud wfth cold water. Pre Treat with Lecithin. Precautions should be taken for shallow gas at all times. Highest liklihood of having a shallow gas problem is on trips. When drilling, monitor mud log gas and increase Shallow Gas pump rate to increase ECD if gas detected. Increase mud weight if possible. Use diverter'rf rig safety compromised. When tripping, keep hole full and closely monitor trip tank. Pum out of hole if tendanc to swab. Lost Retums Maintain minimum mud weight. Control running speeds when runnin 9 5/8" casin . Known instability issues in area in HRZ shale, Miluveach Shale Instabiliry and Kingak shales. MitigaGon includes KCL mud system, maintain near vertical angle through shales and increased mud densi if re uired. Watch for increased shale across shaker and increased torque and drag. Maintain proper hole cleaning. If torque Hole Cieaning increases make a wiper trip. Plotting torque and drag daily will indicate problematic trends. Report torque and Pick- u Rotatin and Slack off wei hts. Hole packoff can occur due to conglomerate drilling in the Stuck Pipe due to hole packoff Triassic and/or improper hole cleaning. Use PW D data to monitor cuttings loading and conVol drill and/or circulate out to clean hole and lower ECD. Most likely when BHA across pertneable sands. Maintain 4028 TD Stuck pipe due to Differential Sticking P~Pe movemenl(recip and/or rotate) at all times. Maintain mud properties within desired ranges and maintain minimum low rav' solids in mud. A slight ramp in pore pressure could occur around 7000' and increase to -9.6 ppg by 8000' MD. Mud weight will be adjusted accordingly to maintain 200-300 psi OB. Increasing pore pressure Mudloggers to monitor background gas and other indicators of increasing pore pressure. Perform flow checks on connections and monitor trips closely to ensure ro r fill u and minimize swabbin . Utilize PWD to maintain constant ECD within desired limits. Lost retums Maintain mud rheology according to mud plan. Be re ared to conVol LC with LCM accordin to mud lan. Problem should be mitigated wfth use of KCL mud. Nut Bit Balling plug and detergent sweeps sometimes effective in removin cla ball. Drilling Risk Assessment 02006 Prepared by Signa Engineering Corp Page 10 ~ ~ Brooks Ranae Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.6 GENERAL WELL PLAN 1. Set 16" 0.50" wall thickness conductor using "Watson" drill at minimum depth of 80' below ground level. Install 8' diameter by 6' deep corrugated pipe cellar. 2. Install VetcoGray 16" landing ring. 3. MIRU Nabors Alaska Rig 16E. 4. Notify regulatory agencies of spud as required. 5. Nipple up 16" diverter riser and 21 '/4" Hydril MSP 2000 psi diverter system. Install 16" diverter line. ~~~~ qpC,C~ ~oc° ~~-~c~~~~ . 6. Function test diverter system and conduct diverter operation drills with each drilling crew. 7. MU 12 1/4" tricone bit, PDM and MWD/LWD/PWD tools and spud well. Kick well off at 500' and directionally drill to 1,880' MD. Angle will be built to 37.4 degrees. Care should be taken when drilling through the base of the permafrost at ~1,656' MD (1,590' TVD) (Possible gas hydrates, shallow gas and/or deviation problems). 8. Make wiper trip back to surface to check hole condition and reduce an le setting on PDM. ~ ~~.~ ~ r---- 9. Continue to drill tangent section to approximately 4028' MD. Use LWD and return samples to pick casing point in competent shale section. POH and LD B HA. 10. Run 9 5/8" 40 ppf L-80 BTC-M surface casing to TD. Run TAM ported collar at 1000'. Circulate complete circulation or until hole is clean. 11. Perform single stage cement job using Articset Lite lead followed by Class G tail slurry. If no cement returns to surface, perform top~ out stage. ,v~ ~~~ ~,~~~~ 12. ND diverter and NU VetcoGray MB-230 multibowl wellhead. ~~y~,~ ` 13. Notify AOGCC 24 hours ahead of planned BOP test. .-t ~ 14. NU 13 5/8" 5K BOP stack and 3 1/16" choke manifold. Test to 250/5000 psi. Install wear bushing. 15. PU enough 5" drill pipe to reach TD 16. PU 8 3/4" PDC bit, rotary steerable, MWD, LWD & PWD tools and run in hole to float collar. Test 9 5/8" casing to 3000 psi with 9.6 ppg mud for 30 min. 17. Drill out float equipment and cement. 18. Drill 20' of new formation below 9 5/8" shoe and perform formation integrity test. ~~,+~~v~.r~ c~ ~~ uMC,,~-~~,.~•~w~ S C~~ a~g~c~a-5 . ~ c~ ~~-~ 02006 Prepared by Signa Engineering Corp Page 11 ~ ~ Brooks Ranqe Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska °~~_5 ,~o~-~~.~ `~ 1 ~~ ~ C~~I - 19. Drill 8 3/4" hole as per directional program to TD at 2,978' MD (11,290' TVD)' with 10.5 ppg mud. If shows are encountered in Ku and/or Ivishak interval, decision may be made to POH and run conventional core barrel. Depending on days since last BOP test, BOP test may be required. (BOP tests required every 7 days). ~ 20. At TD, wireline logs may be run (MDT and/or Dipole Sonic). If formation test tool required, plan to run on drill pipe. 21. If decision is made to P&A, proceed with abandonment as per AOGCC regulations and as discussed in Section 5.4 of the drilling program. A detailed plugging procedure will be prepared and approval obtained from AOGCC. 22. If decision is made to run 7" casing, RIH with bit and one stand of drill collars to TD and circulate and condition mud prior to POH and running casing. 23. POH faying down 5" DP. 24. Rig up and run 7" casing. 25. Cement 7" casing. Top of cement to be determined based on open hole logs. 26. Install 3'/Z" pipe rams in BOP stack and test stack. 27. Test 7" casing to 3,500 psi. 28. Freeze protect 7" X 9 5/8" annulus. 29. Run cased hole logs (USIT-CBL). 30. Run 3'/2' tubing completion as per detailed completion procedure.p ~~ ~~~,n roc~cl~ca~cc 5~~~~ 31. NU tree and test same to 5,000 psi. Q 32. Freeze protect well. ~~ ~~~~ ~~ ~ ~~r~n~( 33. Perforate using wireline guns. '~~ "~ 34. RU PowerWell testing equipment and flow test well as per well testing procedure (will be included as Appendix to this program). 35. Proceed with pumping kill weight fluid and setting necessary mechanical plugs to provide required barriers for suspending well with d nhole production equipment in place. ~-~103 c~.QP~ti~~°~ `~~ ~ ~~ ~ 36. Close SCSSV and install BPV in tubing hanger mandrel. Install single valve tree. Install VR plugs in all wellhead valves. 02006 Prepared by Signa Engineering Corp Page 12 ~ ~ Brooks RanqP Petrole~m a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2.7 DIRECTIONS TO LOCATION ~ ; ~ l --~ . .. :, _ : , : ~ ..~ ~ ' ~~ , '~~, ~ ~ ~. ~, ' ~ ~~.~ ~ _- .~ ~.~_;~~ ~~,~; . ._ . ~ " ~EOJ ; --. ~.;.. e ~ $ ~ ,-+ ~4~'^ Y+1 ~~ •: -T~ +` 4 ~ ~ '~. ~ P ~ J ~ • ~+MNi ~ ~ ~ i !e~~ ~., P~y ~ , ~}i.~ w.~r ax ~ • ., ~~P^17w :i . I , r} ~ ~~. , no.~ . ~.,., q,. ~.e j ~ . .' ;1 P3f~j~ 1' IE j f' '~ a~+w ~ . .., ~ !ME .a • ~, .9~ `~ a~ Sak River Pad Road Map Go west on Spine Road approximately 25 miles from Deadhorse. Turn north on road to S pad. Turn left on ice road south of S pad and follow approximately 6 miles to location. 02006 Prepared by Signa Engineering Corp Page 13 ~ ~ Brooks Ranye Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 3 Geology & Maps 3.1 FORMAT/ON TOPS Top Top Nad 27 Alaska St Plane Zone 04 Formation MDrkb TVDrkb North East Surface GL 40 40 6,006,061 626,647 KOP 500 500 6,006,061 626,647 Permafrost 1,656 1,590 6,006,296 626,880 End Build 9 518". C~sing Point 1,883 4,U27 1,775 3,478 6,006,388 6,007',313 626,972 . 6~7`,~i91 Start Dropping Angle 9,130 7,529 6,009,513 630,078 Top HRZ 9,607 7,940 6,009,683 630,248 Btm HRZ 9,872 8,190 6,009,745 630,309 Kuparuk R F. 10,026 8,340 6,009,769 630,333 Angle drop to vertical 10,378 8,690 6,OQ9,792 630,356 Kuparuk C1 10,378 8,690 6,009,792 630,356 LCU 10,428 8,740 6,009,792 630,356 Base Kuparuk 10,603 8,915 6,009,792 630,356 Kingak (Jurassic) 11,583 9,895 6,009,792 630,356 Sag River SS 12,568 10,880 6,009,792 630,356 Ivishak 12,738 11,050 6,009,792 630,356 TD 12,978 11,290 6,009,792 630,356 ~-- ~~°~ ~~`~~,~\~ )~ Formation Tops ''~ \ / ~~., ~`/e ~ ~ ~r "r-_~ 02006 Prepared by Signa Engineering Corp Page 14 ~ ~ Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 4 Time & Cost Estimate 4.1 DEPTH VERSUS DAYS Sak River 1 Depth vs Days Days from Spud 0 5 10 15 20 25 30 35 0 1000 ~ ~ ~ ~ ~ ; ~ ~ ~ , ~ - ---r-----r------~-------~-------~------------- ' ' ~ ~ ~ ~ ~ ~ ~ i ~ i 2000 ~ ~ ~ ~ ~ i , ----, ---,-----,------,-------,------ ' ' ' ' ~ ~ ~ ~ ~ ~ ~ ~ 3000 ~ ~ ~ ~ ~ ~ ~ ~ -_ _------'----'-----'------'----- ~ ~ ~ ~ ~ , ~ ~ ~ ~ 4000 ~ ~ ~ ~ ~ ' -----'------'------'---- - '------ , ~ ~ ~ ~ ~ ~ ~ ~ ~ SOOO ~ , ~ ~ ~ ______~___ ___~_______~_______~_______~______~______ ~ ~ ~ ~ ~ Y ~ 6000 I I I i I I i --I 1 I I _ _ _ _ _ _i _ _ _ _ _ _ _ _ _ I_ _ _ _ _ _ _1_ _ _ _ _ _ J _ _ _ _ _ _ J _ - _ _ _ _ i I I I I t 1 I I I i i i i i ~ ' ' ~ ' ~ 700~ ------ ------ ------~---- ------- ------- ------- i i i i Q i i i i i d ~ a~~~ i i i i i . _ . i. _. ~ i - - --~~~~ -~-----~---~---~------ i i i i i 7 i i i i i N i i i i '° d 9000 _ , , - -~- - ~ - - - - ~ ; , Conventional Core in Kuparuk ; 10000 ~ -- ~ -- ~- ~ ~ ~ ~ ~ ~ 11000 , ~ ~ ~ ~ ~ ------r------~-------r ----i-------i------~------ ~ ~ i i i i i ~2~~~ i i i i ~ ~ ~ ~------ ~ ---~ -----~-----~-- -~- -----,------ , ~ ~ ~ 13000 ~ ~ ~ ---- - - - --------- - ------- ------- ' ' ' ~ ~ ~ ~ ~ ' ~ Run open hole logs as required, 14000 -' - - - - - - - ' Run 7" casing, Run completion. _ ; ; RDMO ~ 15000 ~ ~ - ---_ ~ ~ _.., .._. _____~_ _ ~ Depth versus Days - Drill & Complete 02006 Prepared by Signa Engineering Corp Page 15 ~ ~ Brooks Ranqe Petroleum a subsidiarv of A VCG, LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 5 Detailed Operations Procedure 5.1 PLUG AND ABANDONMENT PROCEDURE Abandonment must be designed and executed to comply with AOGCC Rule 20 AAC 25.112. Key elements of the requirements are shown below. Plugging of the uncased portion of a wellbore must be performed in a manner that ensures that all hydrocarbons and freshwater are confined to their respective indigenous strata and are prevented from migrating into other strata or to the surface. The minimum requirements for plugging the uncased portion of a wellbore are as follows: A cement plug must be placed from 100 feet below the base to 100 feet above the top of all hydrocarbon-bearing strata. A cement plug must be placed from the well's total depth to 100 feet above the top of all hydrocarbon-bearing strata. A cement plug must be placed from 100 feet below the base to 50 feet above the base of each abnormally geo-pressured stratum and from 50 feet below the top to 100 feet above the top of each abnormally geo-pressured stratum; A cement plug must be placed from 150 feet below the base to 50 feet above the base of the deepest freshwater stratum. A continuous cement plug must be placed from 100 feet below to 100 feet above the casing shoe; The down squeeze method using a retainer set no less than 50 feet but no more than 100 feet above the casing shoe can be used with a volume of cement sufficient to fill the wellbore from the retainer to 100 feet below the casing shoe. Cement must be pumped above the retainer to cap it with a 50 foot cement plug. Except for surface plugs, the operator shall record the actual location and integrity of cement plugs, cement retainers, or bridge plugs set, using one of the following methods, which in the case of a cement retainer or bridge plug may be performed before cement is placed on top of the plug: 1. Placing sufficient weight on the plug to confirm its location and to confirm that the plug has set and a competent plug is in place. 02006 Prepared by Signa Engineering Corp Page 16 ~ ~ Brooks Ranqe Petroleum a su6sidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 2. Testing the plug to hold a surface pressure of 1,500 psig or 0.25 psi/ft multiplied by the true vertical depth of the casing shoe, whichever is greater, and tagging the plug to confirm location; however, surface pressure may not subject the casing to a hoop stress that will exceed 70 percent of the minimum yield strength of the casing. Each of the respective intervals of a wellbore befinreen the various plugs must be filled with fluid of sufficient density to exert a hydrostatic pressure exceeding the greatest fo~mation pressure of permeable formations in the intervals befinreen the plugs at the time of abandonment. Plugs and slurry designs will be determined based on logs. 5.2 WELL TESTING This exploratory well targets finro prospective producing intervals, the Kuparuk C sand and the Ivishak Sand. Both zones could be individually tested. Well testing will utilize a portable test separator, flare and portable tank battery. Surface samples will be collected from the test separator periodically during any flow test. Any produced liquids brought to surface will be collected and hauled to an existing facility in Prudhoe Bay. Any produced gas brought to the surface will be flared. PowerWell services will provide the testing services. ~~~~ ~`J~ ~`~~~ ~ ~ ~~5~ ~~ ~~~~ ~ ,~° ~~C A detailed well testing design and procedure will be prepared and included as an ~ Appendix to this procedure. 02006 Prepared by Signa Engineering Corp Page 17 i • Brooks Ran~e Petroleum a subsidiar' of AVCG_ LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 6 Well Path Design 6.1 DESCR/PTION Kick off point is in surface hole at 500' building at 3 degrees per 100 feet to 37.4 degrees at 1,883' MD. A 45.8 degree azimuth tangent will be held to 9,130' MD where angle will be dropped to vertical by 10,378' MD at 3 degrees per 100'. 6.2 SURVEYING All surveying will be conducted using Sperry's MWD directional module. 6.3 SPERRY DESIGNS ,~:~.~~ ~,~..: Gm!'_wi :)' C~+~~~~['v.`~..~.-,a+ ew~ -' .. m~.x~n~. ~cn:i-'Adicana..te0.: -~.i i.G' Vpy a: 1: MBFlR3' &oy e;M+ S :ce~f t : ` ~ :~W~ vrc :.F"tt'.VA ~,..,~p~a e+„~„ .c n.e- ::. q+o x v ew e a: 4Yl. s~a.f 1~..t~,aw ~ .w..~ _~~v..r.,ws. .....w A ; : F.R~ w L~ ]6+ ]~ Je 1D '•2.^.m :` J 'IET.~`S ~E-l' Q~ 3e~ 1L. :~x (.fL"v'.aflALS. ~1 TD f@ ~ tb 1 LO CS 1'X' C[ i: N OC: :.@C ' .. I AO !m0 [dL !S NCt~ 0: :1 !0: :.00 '.t u~A j - . ` 3 ".RP :K N~ 10^.4 :~ :?C ~*_X'~ _"1!~ i~]E +!.IE 5 ^S NT. +'C 1VCL :7C: `J:1 :R~ `S' ~E{ 301 QK' D.iC :ID 3V~ 't4! ~~,~=mR%a ; :~"'T~TZ- MALL16LiiTON - ~.°~ro iy :~c ~aii tai~ s~'~s°s ix ~ro i~ni _ . ~ av.rno.~nnsa«.~a~ ~ :~at: ux c:c ~ -n: em :s wcre rm:o ser'.s ~ee-~ 3-ts ns 3m cm :u.a xro .~c~,ss~~cz•.~. s:v~ c .:o~ ~..a.-;-p,~r.:r ~ a~:.cau ez a u ::rs: cx zx .sce xo-'<, e':t ~r. cw s.v! ..c ~~.t;a~ Projeet: 6wydyrBay a~~ioesi -az-.n Sitr: GwydyrBiy-SakRher IM1tH: Sak Rirerl 5~.ecrErar~-oe-.:_~r,rPC-.cv_~w~; Weff6ore: ~akRiverf s.w...-~-a~x.n». '~r. -~..s f.r: =~ e+n~+v ~w. Pfan: SaARlver-irpOl •sec: ~" r . «cc !~cxen Rs~ -- ." -~.c..c•~. sr ex w cx~rv= ~ c~xwn.».mvoer~aa + - i ~ rc iwrr rci-+w vaw.eo~ ti-¢ ~ ~ Sfai~r .~ ~'S' ' " "s.'~:'J] f9CI.O0]VT'!.^. 19ti 3fWl Tw~R IIlA }t1I 6rN1I ~ . -__ .______". . , Y~tl I!N{I M~V~tF. '- E - v~:•l60.YtC~%O'T4D ! ~ ~0 CSii.~ 1aPC-~Sntl /lA~~ 10011 lN - ` , ~tle v~~ e~~.o~+ ' -~_ ` ~ ---_ ~ ssa nss[~~ w~+.a.m~e ~ ~, __ 4:~T 3w! 3..~ao. ,,r, p+o ~zo~^m w~wo u~a ~ rm sy I ~tM1AD 4'+~i~ 2apA.il~s I ~ ~ EneW :'2L" W 1^+YTyp \ \ T~11Q ~ ' 3uriMt'~OC'.i130'ND 733.!'iW la~MZ • '• • ~ 1:.Ow~rt R.F. iMC-~f~N ~ LCV - ..... •• •• •••. • ( W"-..____6qr~t0lT"I~ON9PTVD BswPO~ •.••'••"" r+V~A~.wW ....._,. ,_".'__'.____..__._. _ _ _.. _. !bM M..w~~ * ~DFE5L0> ~ -_S___.. .. t~0 ~.... 8Y R~yr-~:..Y O.rw ~ ' ~PN lA IwMr.-..."""""" . y-.. ___.-TO's ORa+ i'."i'F 1' VD. 1 t_iQ TY,`, l00 NIC 90Cfi `20 IOOC f021 s'.IOi~ •e^(p '~ ~'MCy 9ec:m at N.3Y !:5~.'~0 Mr ~ Halliburton (Sperry) Section View 02006 Prepared by Signa Engineering Corp Page 18 ~ ~ Brooks Ranae Petroleum a subsidiapr of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska I~// ~/ ~ Bnil4L Qa+)n ak[~OYIIn CMpv~110n :R6A.":E.v1GS~ laN: h~ aeaM¢ HALLIBIJRTON "~ ~~',~"°""' ~a~,a 7,.~roo.s=~ eP~n'Y Orlli~p Bervioe~ ~°~`~ ~Ot~'~ •'o4]Ybl f~mM ~'~T"C Bep _~'.FJ?E~+L'i ~: ~[ L~SOJ! VIOtt '4 l£ ~t I.rn » •~wR4M.n. ~.Yw- .~~~r. ~~ i~~6G ~C'." V's F•.5 ~w~~T3Mwu 1] _ _O<S..]. 1•~. w ~ <a,r~.sr. ~ ~ . ~r.sao rr-o~: ' - ~~ . ww ir:~<.~-0. SE:T:'Y. CFi4:3 S~c W F: i0 0.7C Sn i]Q i; : C'~ v' ~ 0.C .f ~ri 0.v :0 O~k ihcv ~LP w5~c T1qMe C3 ) 'AGO O7C Kr:D 24 ~00 NAJ £C: ~OC: 8.C 1G :0 OR 'Q SZ^ :-0C ~SM C. ~ ! ~0 %% ^1 H% AAO Hlo '9C2 '!ft: .71~ _t~' ' S:t !SE R'JL 67C l0V ll~ W5 Q f9a,i 2?K ~5.4t '' Y'fE ILO 5]C ]0~ ~Bt7 s >'1C0 )'~ ~r,•s~ n.x !?i ax Y.~O ;x _~ao ':.E! aecc: •~x: 9NL' ~a*e ;x-t 31di~ 07C i^•o ~x s-•a ax ~00 •:~ao ~m ~AYi ~a; s.a; >._.--•-aaaasr-. . .i.1 CT :JJ .•`K_ :Al•• . a ~% :JC ^_.R3 NEl.E _~F T~=:icT ~_1~~~_ .L~? :.:-:G,i4r; .^i ,'.' _ ~r3~ Slro: Gwy r Bay • Sak Rlrer `^' '.c =:-: -~+~ hu*~ Fwsro t~+.e W~a• oyw. WeR: SakRJvei-1 saa,r-ik~a.~s:• ~ulo[ 'r.-7 s*~+~9 aa:.'?v_i e't~Y.GO •-s:r~ wrx~~.caca WeAbore: Sak Riverf Plm: Sak Rlver - 1 wp0< u~ee:tsrsa.or, y~.a v`m- i aow ~ _ :s[4pk 1_'Y'!:lC:l3CT. r ~w~r - ii . bt~ t~~~cexr:~: . ..i.. . .!' ~C.-::i^=. iSf ~ ~ _ _ ~eo..z:~ic:.rr.~ ~aJm -s~uV:t2 ~'" " "' - . " "~ . . rt.1 :Bk.I lC 1'<t7lC --_ ----~ -- sra:~::r a+~~: •'9e~r_S IT. m IO'M:tD 1'aw-~ E~r1-: i 1:LC tr m~ xw -_x• -aoa ~ Halliburton (Sperry) Plan View 6.4 WELL PROX/M/TY There are no wells within several miles of the SR 1 surface location. Accordingly, wellbore path interference is not an issue. 02006 Prepared by Signa Engineering Corp Page 19 ~ ~ Brooks Ranye Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7 Drilling Fluids and Pressure Gradients 7.1 PORE PRESSURE Pore pressure data was compiled from DST's on area exploration wells as well as bottomhole pressure data available from Northstar and PBU-Midnight Sun fields and is shown below. Well Distance Date Formation ND Type Recovery Pressure Eq PPG Hamilton - KUP Detta 51-1 5 miles SSE 1970 Kuparuk 9120 OH DST GCM 3906 8.24 Conoco - Gwydyr Bay State 2A 5 miles ESE 1981 Kuparuk 8909 Cased DST Oil 4144 8.95 BP - MSU E-100 (Sam 1) 9 miles SE 1997 Kuparuk 8136 Prod Test Oil 4037 9.54 BP - Northstar 7 miles NE 2005 Kuparuk 9100 BHP NA 4449 9.40 Mobil - Gwydyr Bay South 1 2 1/2 miles SE 1975 Sadlerochit 10034 Cased DST Oil 4900 9.39 Conoco - Gwydyr Bay State 2A 5 miles ESE 1981 Sadlerochit 10655 Cased DST Oil 5141 9.28 BP - Northstar 7 miles NE 2005 Ivishak 11000 BHP NA 5073 8.87 Area Bottomhole Pressure Data Sak Rlver 1 Pore Pressure Data Er~w Ivv9I e o0 9.00 ,o 00 ,, oo ,2.00 iooo ~- ------, -----i~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ - Tr--~-~ i i i i ~ i i i i i i i i i i i i i i i 3000 i i i i I I I I I I I 400U - I 1 I i I 1 I 1 I 1 I I 5000 i i ~ ~• Actual Deta i i i i i -Oasgn " 6000 - ~-~ -f- ~ ~ -.+ . ~ . $ i i i i i i I I I I ~ - 1 I 1 1 7000 ~ ~ I I 1 1 I I I 1 I I I I I I I I ~~ I I I 1 i Kuparuk ~ ~ gppp _._ _ ..~t.. . . 1 i . . ~ i ~i i i ~ ~ ~ ~ ~ ~ i toooo - - ~ ~~ ~ .__ ~ ~ ~ i ~ Sadl~rocbil , i ~ • i ttooo - ~~- ~ ~ _ ~ i ~ ~ ~ I ~ I I I I 1 I I 72000 ..._ _'_'L_-__'.J__.._ -_~_- ~ -1 . ~ Pore Pressure Design Plot 02006 Prepared by Signa Engineering Corp Page 20 ~ ~ Brooks Ranye Petroleum a subsidiap~ ofAVCG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7.2 FRAC GRADIENT 8 LEAK OFF TESTS A theoretical fracture pressure gradient was developed using Eaton's correlation. Actual leakoff test data was compiled from area wells and is plotted on the attached. Actual surface casing leak offs typically exceeded the estimated FG by 1.5-2.0 ppg. Values for fracture pressure were assumed as an average of estimated and actual at surface casing depths. Eaton's correlations and actual LOT's compared more favorably at the deeper horizons. SR1 Fracture Pressure EMW (ppg) 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 1000 2000 3000 4000 5000 .^. 6000 d d C ~ 7000 8000 9000 10000 11000 12000 ~ Fracture Gradient A formation integrit st i be performed after drilling out 20' below the 9 5/8" casing. To achieve a FIT 12.5 p with 9.7 ppg mud at 3,478' ND, 500 psi surface pressure will be required. 02006 Prepared by Signa Engineering Corp Page 21 ~ ~ Brooks Ranqe Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7.3 HOLE STABILITY Three shale intervals are present in the area that sometime require additional mud weight to prevent tight hole due to stress related shale instability. These occur from ~7900' to -8150' ND in the HRZ shale and from ~9400' to ~10,800' ND in the Miluveach & Kingak shales. Based on review of available drilling histories in the area, shale instability problems are not anticipated at SR1. Furthermore, it is planned to drill the Kingak section vertically which should largely mitigate instability. It is anticipated that the well can be drilled to TD with 10.5 ppg. 7.4 WELL PRESSURE DES/GN Assuming 10.5 ppg mud is used to TD the well in 8 3/4" hole a ular friction losses equal 1.0 ppg, an ECD will be 11.5 ppg at total depth. With ~3.6 pg leak off at the surface casing shoe (3,478' ND), an ample pressure window pg) exists to safely drill to TD without intermediate casing. ~-,~~b e~S~~ `~_~~~~ ~~~C~. ~~ e. oo s.oo io.oo 1000 2000 3000 .. -~-. 4000 --,-. . 5000 . . sooo ; , m ~ ~ ~ ~ c z ~~ ~ ~ ~ -- ~ ~ eooo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 9000 i i i i i i i i i i i i i i 10000 i i i i i i i tt000 12000 ~ ~ ~ i ~ ~ ~ ~ ~ i i i i r i i i ~i ~ ~ i il i i EMW (ppg) 11.00 12. 00 13.00 14.00 15.00 16.00 ~r~-~~ ~Fracture Gradient ~~ i i i ~ ~ ; i ~Pae P~essure ~ ' ~ ~ ~ tMud Weigh~ i i i i i i-- i i -,- ~-- ~ tStabilily HRZ ~ ~ ~ ~ ~ ' ~~ tECD i i i i i . ~ ~ ~ ~ ~ ~ Sur~acecasinget i i i i i ~--~ - i i -3067' ND ~4000' MD) i ~ i ~ ~ ~ i' 13.6 ppg LOT ~ ~ i ~ , i i ~-. -~~- ~-' - - - i i i ~' i i i ~ i ~ i ~ i i ~ i i ~ i ~ i' i i i i i i i -- --t-- -- -~~~--*- -~-~- i I i ~ ~ ~ I j ~ ~ ~ ~ ~ ~~ ~ ~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~; ~ ~ ~ ~ ~ , ~ ~ ~ ~~ ~ ~ , ~, ~ ~ ~ ~ ~~~ ~ ~ ~ ~ ~ ~~ ~ ~ ~ i ~ ~ ~ ~ ~ ~ ~ ~ ~ '-~ , -~-,-;-- -;- ,- , , ~ ~ , ~ ~ ~ ~I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~I ~ ~ ~ ~HRz ~ ~ ~ ~~ ~ ~ ~ ~ ~ ~ ~' ~ , , , , , , Kuparuk C , i ~ i i~ ~ i . , _ i ti~~ _ _. __-~ _ .. i , i i i i i ~ i ~ ~ i i~ i i i . ' ' ' ' ' ~ ' Kingak i ~~ i i i i • r ~ r- + --+---~-y-r- i TD far SR1 ~ ~ ~ ~~ ~ ~ ~ $ag River i ~ i i i i i i r-,--rrr-r--r- Ivishak i i i i ~ T'T ~i ~~ ~ i~ i r T' ~ i i i i i i i i i i ~ i i i i i i i Well Pressure Design W~K,~~, c~~ a~~ ~~~``~ , 02006 Prepared by Signa Engineering Corp Page 22 ~ ~ Brooks Ran~e Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7.5 TEMPERATURE A temperature gradient of 2.6° F per 100' is used from base of permafrost to 6000'; thereafter a gradient of 2.3° F per 100' is used to TD. Depth (ND) Temp (° F) Gradient (° F/100') 0 25 0.00 1600 32 0.20 2000 42 2.60 3000 68 2.60 4000 94 2.60 5000 120 2.60 6000 146 2.60 7000 169 2.30 8000 192 2.30 9000 215 2.30 10000 238 2.30 11000 261 2.30 11290 268 2.30 Temperature Gradient 02006 Prepared by Signa Engineering Corp Page 23 • i Brooks Ran4e Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7.6 DRILL/NG FLUIDS PROGRAM 12'/4" Surface Hole - Surface to 4.027' MD (3,478 ND~ A KCI/KLAGARD spud mud will be used for the surface interval to reduce dilution, minimize bit balling and reduce haul-off volumes. Initial viscosities of 150-175 sec/qt will be used throughout the permafrost, which extends to a depth of approximately 1,600' TVD. 12114" Surface Hole - Surface to 4000' Drilling Fluid System KCUKlagard Spud Mud Products Used M-1 Barite, MI Gel, Caustic, Drispac, Duovis, Bicarb, DRILLZONE, KCI, SCREEN KLEEN, Resinex, KLAGARD Mechanical Solids Control Four Rig Derrick 2000 Shakers, Swaco 5500 CenUifuge Gravel, unconsolidated sand, clay CIay/Bit Balling Potential Problems Tight Hole Severe Hole Washout Lost Circulation Interval Mud Properties Mud Property Initial Value Final Value @ Total Depth Density (Ppg) 9.1 9.5 - 9.6 Yield Point (cP) 45-60 45 - 60 PV (IbH00 s~ 20-30 20 - 30 10 Sec Gels (IW700 s~ 10-20 10-20 10 min Gels (IbN00 s~ 15-40 15 - 40 pH 9.0-9.5 9.0 - 9.5 API Filtrate(cc) 8-15 <S Solids (%) t 9% t 9% - Mud Fortnulatlon ~ . Product Function Concentration Caustic Alkalinity Control 0.25 Ib/bbl Duovis Viscosifier 1.25-1.75 tb/bbl PoIyPAC Supreme (or UL) Fluid Loss ~-2+ Iblbbl 6°lo KCI Clay Control 22 Ib/bbl M-1 Barite Weighti~g Agent As required for mud weight ScreenKleen Shaker screen blinding, clay control 0.5 - 1~o v/v (as needed at the well site) Klagard Shale Control 8 Ib/bbl 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. Gravel sizes can cause hole-cleaning problems. !f larger than normal gravel is encountered be prepared to increase funnel viscosity to +175 - 200 sec/qt. 02006 Prepared by Signa Engineering Corp Page 24 ~ ~ Brooks Ranye Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska Sticky clays in the permafrost at and also in the zone below the permafrost can slow ROP from bit balling. If needed add DRILLZONE or SCREEN KLEEN (at 0.5 - 1.5%) and Nut Plug m(as allowed by MWD tools) to help clean and clear the balled bit. Use cold water for the initial make-up and for additions made to the mud system during the surface drilling operations to help prevent permafrost thawing. Try to keep flowline temperatures of 60°F or less while drilling this interval. Maintain low flow rates for the initial 200' of drilling to reduce the chance of washing out the conductor shoe. Sticky clay formations are problematic in the surface hole. Maintain or slightly increase mud weight (0.1 ppg) and continue additions of surfactant at 15 to 30 gallons per hour. Wiper runs may be necessary to wipe the wellbore of the problem clays. DRILLZONE or SCREEN KLEEN maintained at 0.5 - 1.5% is recommended to help with clay related issues. To help insure good cement to surface after running the casing, condition mud to a YP of 25-30 prior to cementing the casing. Use water sparinqlV and ensure proper solids control e4uiqment utilization is beinq observed to reduce the over all haul-off costs for this well. Although a low potential risk, hydrates may be encountered (particularly at depths just below the base of the permafrost). Observe good drilling practices to determine severity of any influx and weight up as needed to maintain proper well control. Precautions including control drilling and additions of Lecithin should be taken. As with hvdrates, there is a low risk shallow qas could be present. Be alert for mud loq indications of qas in shallow hole. Increase circulation rate and/or mud weiqht if necessarv. Be especially diliqent when trippinq. Monitor trip tank closelV. Use top drive to qump out of hole if hole swabs. If there is any doubt about fill uq volumes. return to bottom and circulate out Spud mud will be mixed on the rig or at M-I Swaco's Prudhoe Bay mud plant once the rig is spotted over the well. For the first batch (100-200 bbls) of fluid mixed, add caustic or KOH and 2.5 ppb M-I Gel to the make-up water and allow the gel to hydrate as long as is 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. Run all solids control equipment. Run 84-110 mesh shaker screens to maintain a moist discharge for enhanced solids removal. Add drill water below shaker to avoid washing unwanted solids back into the active system. Watch for "excessively wet" cuttings and 02006 Prepared by Signa Engineering Corp Page 25 ~ ~ Brooks Ranqe Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska change screens to a larger mesh should this occur. Minimization of "excessively weY' cuttings sent to Grind and Inject for disposal is a major cost reduction factor. Lower API fluid loss with Drispac (or Poly Pac Supreme UL) as needed to maintain hole stability. To control rheology, additions of Desco CF inay be needed. Allow surFace mud volumes to fall during the later stage of this interval to minimize waste fluid disposal costs. Run and set the casing as per program. Treat the chase fluid and drill out mud for the upcoming cement drill out. Pre treat as required to prepare for cement drill out after running 9 5/8" casing. Upon drill-out of the surface casing shoe, treat any cement returns with SAPP, Bicarb, and PH-6 as needed. 8 3/4" Production Hole 4,027' MD to 12.978' MD (11.290' TVD The production interval will be drilled to a planned depth of 12,978' MD in a 8 3/" hole. The interval will begin with a 9.5-9.7 ppg fluid and will TD at 12,978' with a planned 10.5 ppg fluid. Close monitoring of hole conditions during connections and on short trips in conjunction with mud logging parameters will determine if there will be a requirement to increase mud weight to control shale instability. Lithology for this interval is expected to be typical of this region consisting of sand, shales, and siltstones. Ensure that the fluid properties are maintained to provide the best possible hole cleaning. Maintain mud weights as per program guide lines, or as the hole dictates, and ensure that rheology is optimized to reduce ECD's to a manageable level while drilling. Monitor for any fluid losses and flow back closely. Control the ROP and flow rates as needed using PWD readings to avoid inducing a breakdown of any formations. Reduce pump rates immediately if packing off occurs. Pump high viscosity sweeps periodically to assist in hole cleaning and evaluating hole cleaning performance. Adjust rheology, pipe rotation speed, pipe running speeds and pump rates as needed to balance hole cleaning and ECD. Break circulation slowlv and keep in mind that, with hiph vield aoint muds, the maioritv of ECD is realized at verv low circulation rates. Lost circulation could be a possibte problem for this interval. Tripping and casing running speeds should be monitored closely. Rheology and mud weight should also be held within tight specification. Add lubricants as needed but do not exceed 3% v/v total without careful consideration. Also ensure that the hole is clean prior to adding lubricants. Do not use the lubricants as a substitute for hole cleaning problem. 02006 Prepared by Signa Engineering Corp Page 26 ~ ~ flrooks Ranqe Petroleum a subsidiarv of AVCG_ LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska Monitor and record drilling parameters on each connection and before and after any lubricant additions. Upon reaching TD 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 second high viscosity/weighted sweep and observe bottoms up again. A mud weight-up to 10.4 ppg will need to be completed by 300' ND above the Kuparuk. Fluid deliveries, fluid transfers, and cuttings disposal issues should be tracked on a daily basis. 8 3/4" Production Hole - Base Surface Casing to 12,978' MD Drilling Fluid System KCL/Klagard Products Used M-I Barite, MI Gel, Caustic, Drispac, Duovis, Bicarb, DRILLZONE, KCI, SCREEN KIEEN, Resinex, Mechanical Solitls Control Four Rig Derrick 2000 Shakers, Swaco 5500 Centrifuge Hole Cleaning Shale Instability Potentiaf Problema Increasing Pore Pressure over normal Interval Mud Propertles Mud Property Initial Value Final value Denslty (PPg) 9.5-9.7 10.5 Yield Point (cP) 18-22 18-22 PV (Ib/100 s~ 10-15 15-23 Chlorides 28,000-32,000 28,000-32,000 pH 9-10 9-10 API Filtrate(cc) 7-15 < 6 Solids (%) t 8.5% 8-11% Mutl Formulation Product Function Concentration Caustic Alkalinity Control 0.25 Ib/bbl Duovis Viscosifier 0.75-1.251b/bbl Drispac Fluid Loss 0.50-1.75 Ib/bbl 6°k KCI Clay Control 22 Ib/bbl M-I Barite Weighting Agent As required for mud weight Resinex Fluid Loss 4+ ppb (as needed at the wellsite) ScreenKleen Shaker screen blinding, clay control 0.5 - 1.5% vN (as needed at the well site) Klagard Shale Control 8 Ib/bbl DriIlZone lubricant As needed for torque & drag 02006 Prepared by Signa Engineering Corp Page 27 ~ ~ Brooks Ranqe Petroleum a subsidiarv ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska Conditioned mud from the surface interval or new fluid delivered from the MI mud plant will be used to make up the KCI/KLAGARD fluid for this interval. Conditioned mud should be centrifuged as needed to achieve the desired drill out weight of 9.5 - 9.7 ppg. Any fluid weight adjustments should be performed in 0.1-0.2 ppg increments using MI Barite or a weighted "spike" fluid. The potential for lost circulation and/or formations found in the upper portion of increased in the later portion of the interval. following as a guideline: differential sticking, due to more porous this interval, is present as the weight is To help avoid issues such as these use the Maintain low gravity drilled solids below 6% with solids control equipment and dilution. If possible do not allow actual ECD's to exceed 0.5 ppg over predicted "clean hole" ECD. Prior to trips, circulate until a clean hole ECD is attained (< 0.5 ppg above predicted ECD). If necessary, spot a pill containing 10 ppb MIX II, 5 ppb Calcium Carbonate and10 ppb G-Seal. When tripping in hole, break circutation every 3,000-5,000 feet by gradually bringing the pumps up. Optimize tripping speed using MI's TripPro software. 7.7 SOL/DS 8 FLUID WASTE DISPOSAL All waste disposal procedures will conform to local, state and Federal requirements. The general approach to waste management will be to temporarily store wastes and periodically haul waste materials to existing North Slope facilities for proper treatment and disposal. Garbage and domestic combustible refuse will be hauled to a permitted facility and incinerated. Solid, non-burnable waste will be deposited in large dumpsters and backhauled to a permitted facility. Food waste will either be hauled on a daily basis to a secure disposal site or stored in animal proof conex containers awaiting transport. Sanitary and domestic wastewater will be trucked to an existing, approved waste disposal facility. Drill cuttings will be contained in a°heated cuttings tank" and trucked to an approved grind and inject facility. Waste drilling fluids will be processed on-site for reuse where possible, or trucked to an approved facility for injection. Used oil will be recycled or packaged in drums and hauled to Prudhoe Bay for shipment to an approved recycle faciliry. 02006 Prepared by Signa Engineering Corp Page 28 ~ ~ Brooks Ranqe Petroleum a subsidiap~ ofAVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 8 Casing Design 8.1 PLANNED CAS/NG PROGRAM 9 5/8" Surface, 9 S/8" 3wface 7•• Production 7" Productiort 31/2" Tubin 3 7/2" Tubin Depth(MD) 4027 13322 13000 Depth(TVD) 2476 11290 10967 Hole Size 12 1/4 8 3/4 6 1/8 Range 3 3 2 Weight (pp~ 40.00 26.00 9.30 Grade L-80 L-80 L-80 Connection BTC-M BTC-M EUE-M Nominal ID (in) 8.835 6.276 2.922 Drift ID (in) 8.750 6.151 2.867 Wall Thickness (in) 0.395 0.362 0.254 Design Factor (Burst) 1.000 1.250 1.000 1.250 1.000 1.2b0 Burst (psi) 5,750 4,600 7,240 5,792 10,160 8,128 Design Factor (Collapse) 1.000 1.125 1.000 1.125 1.000 1.125 Collapse (psi) 3,090 2,747 5,410 4,809 10,540 9,369 Design Factor (Tube Tension) 1.000 1.500 1.000 1.500 1.000 1.500 Pipe JtStrength(klbs) 916 611 604 403 207 138 Design Factor (Conn Tension) 1.000 1.500 1.000 1.500 1.000 1.500 Conn Strength(klbs) 947 631 641 427 288 192 Connection OD 10.625 7.656 4.500 All pipe to be -50 °F Charpy Tested for Arctic conditions Pressure Test(psi) 3000 4500 4500 Casing Program 8.2 SAFETY FACTORS Design Safety Factors (From Stresscheck) OD Burst DF Collapse DF A~cial DF Triaxial DF 9 5/8" 2.79 1.49 3.54 3.17 7" 1.55 1.24 1.66 1.57 Casing Safety Factors 02006 Prepared by Signa Engineering Corp Page 29 ~ ~ Brooks Range Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 8.3 16" CONDUCTOR CASING A 16" 0.495" wall thickness conductor casing string will be set at 80 feet below ground level utilizing a Watson drill to bore a 24" diameter hole. The casing will be cemented by placing Artic Set cement in the 16" X 24" annulus. A round corrugated galvanized cellar will be installed having a 6' diameter. Due to the surface location close proximity to the shoreline, it is possible that shallow ground water will be encountered while boring the 24" hole. If ground water flow cannot be sealed off, a drive hammer will be utilized to drive the 16" conductor to point of refusaL 8.4 9 5/8" SURFACE CASING Required to provide sufficient fracture gradient to drill to total depth as well as provide protection for permafrost and shallow formations. Burst Design • Internal - Gas Kick Profile or • Internal - Frac at Shoe with Gas Gradient Above • External - Pore Pressure/Seawater Gradient 0 500 ~ooo ~ 1500 $ ~°g zooo A ~ zsoo 3000 3500 4000 -T -} . . 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 &asl Ratin9 (P59) 9 5/8" Burst Design Plot ~ i I ~ I t I I I I ~ ~ I ~ t + Oesign Loa K e~~ d L'ne ----- ---- ~___'_ _ --t-__..__~-._-_._~_~._ -- -- I I --I---.__l__._..__. --- I I I - _.._.._. I i ----- I + I j I I ~ --1-____.. ~...------~ ~---- --- ~----- ~ I I I L ~ ------1-..___.._I ---- I -- ~ ~ I I I j i+ I i ~ I I I i ~ i ~ ~ i i ~ ~ i i j --- '-'-' -'- -j---..-_-- ~----~~'------'T-'---"~~..._...__ i -- ! _-._._.~--"-T----T-'- I -- ! ~ I j /1 I I I i + I I i ~ I j i I i ~ ; ~ ~ -E ~F-----}---_--~_-_-~ I I I I ~ -__-+~_~~~ ~ ~ i ~ I ~ ~ 1 I ~ ! ~ ~ ~ ~ ( - --_-~----- ~ ~ -_- ~ i ' ~ ~ t i - --- ~----~-~..~ I ? -_-..~._ . ._'_' _'_ ~ I I I I _..___.._.._:..__-.._.-.. _'_'_ I I ~..--.__'~_'___'.r.._.._.._...__. I ~ 1 ~_'_.__~-.._.._ ' ~.-.-_ ~__` __ __ -- I ~~ I I I 1 j ~ ~ i i -- --h-----'i-------~-__-{-~-~.~ _ _ I ; I ~ ~ ~ j i j I I ' ~ i i i i i j I I I ~ I +-_-t_ ~ i ! I 1 I T ~ i 02006 Prepared by Signa Engineering Corp Page 30 ~ ~ Brooks Ranae Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska Collapse Design • Internal - Full Evacuation • External - Cement slurry densities (unset) o x soo ~ooo m t5o0 ~ d $ z~ ~ 2500 3000 3500 4po0 x 0 500 1000 1500 2000 25 00 3000 35 00 40 00 Collapse Ratn9 (P59) 9 5/8" Collapse Design Plot Axial Design • 100,000 Ibs overpull ~ I I j I ( i I I ~ I I ' ~ ~ ~ j j ~ X +~i X e gn Load L'ne I~tin soo _ _...~----..__' ,-(~~~~ 1..-----...-~.. -._ ~---- i i ~------- ( -----~-._._..___i --- -- ._._.__ ' ~ ----.._... ~ooo ' i i ~ ~ ; ~ I ~ ~ I j j i -----._...--~-----.._.~.._.._..---...~_ ----_-~-.._.._..-- +-~--- ------,--- -r---._...---- - I ...._.._._.._ ------- 7 f i i i /! I I. 1 I ! a~soo i i +~ i I ' I i ~_-- _.__--- ~______±-----t-- -}--t------i--------~ -t-_~____._-i-- I I ' ------ _ -- t $ + j I I I i I. I I j I ~ I I ~ ~2000 8 ~~---.._.._..~._.._..._..._...-1._..---~-'~-- --.._.~ . -t.__..._.._..._._{'_.-.._.._.__~ .. 1-._.._._..-'-'~'. t --- ---- ' I I I I ~-- --- ~ ~ ---~~---~~-~ { ---- -- ~ ~ 2500 ~ i i ~ I i ~ i i ~ ___ ~._. f_~-~- -1 _~ _ I I I I i i i ~-----r---- ~------i ~ I ! ~ ~ ~ ~ __-~ i - ~_~ ! i I i ' I i : I .---..__. _ _ . _.._...-- ---.._..- -----...__ ---- ------- ----- -~ - -' - __..__._ ~ ~ ------- sooo , ' .. .. .. - _.__. ~- t-- - j t ~ t i j 5oo i i ; i i ; I j ' i i ' i I ~ _...- -- ----.._. .._...__-----}-- ------~---------f.._._..._._i------ - }------..~. _..___. ~ -..__...-- ~ I I I ~ i I ~ 4~ + ~ I 1 ~ ~ i ~ i I I ' ~ K ~ 0 100000 200000 300000 400000 500000 600000 700000 800000 90000 0 1000 000 1100 000 Arzial Face (Ibf) 9 5/8" Axial Design Plot I I 1 j + peslgn Load Liie ! ~ 1 I I I ~C e F~tln ___' _' ~ '_"_'__..__~,~J~~ . . ~ .. . .. . . .~ T I ~_---------T------ --} ------- ~ ._'_'__'_'_.__~ j- . .. . -------f--------- I j i i , I ! ~ i 1 -------._~...- -----±-----.._..--- -+-------.. t--- ----- i i I ( ~ i i i I ! I I ( ------- ! --- -------- --- I ~ -r----- ----;- ---r----___ ~ j ; T-- ~ - ' _----- ~ _._.------~ --------~--- ----- ~--------.__~.__.____.. ; ~ ; ; --------~_;. ~ -------- ----.___._. I j ~ I ..._"_'____".j.__'_'_'___.}'__"_____. .__._..._..__. _' ! 7 I . .i_._._..-.~.._..__ I I I I + ~ '_"_'_'_..._.__..._i._ t __"__"___. '__~.._._.-..-.._. I I I ! ~ ___'_'T_____T-_'_~.____ -.1 ___.._._._ ~ .____.~ _.~ . ~. ~ i __._~- ' ~-._~_..__._ - I I ~ I I j I. j ~ ~ 1 I I ---._._.._.._.. .__.--- -- --1----_.._._ ..._.._..----- ~ ------ --- ~ j I j j i j i i i .._.._.._._.~...---i- 1 i --------- ---- ---- 02006 Prepared by Signa Engineering Corp Page 31 ~ ~ Brooks RanQe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 8.5 7" PRODUCTION CAS/NG 7" designed to be production casing set at TD. Alternatively, if shale instability problems are experienced requiring higher mud weights, 7" could be set as intermediate casing which will provide shale interval protection as well as sufficient frac gradient at shoe to reach TD. Burst Design • Internal - Production - Tubing Leak • External - Pore Pressure/Seawater Gradient 0 1000 2000 ~ a000 ~. 5000 ~ ~ 0 ~ ~ooo d ~ ~ sooo ~oooo 11000 ,aooo ~-T }- o ~ooo zooo aaoo aooo sooo soao ~ooo aooo a,.gi ~~ (vsg) 7" Burst Design Plot ~ + Design Loed L'ne ---._L_---__~- .--~--- -~ X efiaGn - ---- ~ ~ + I _.__._._-'-f---..~_.' i I +-----~----~~ ---.~ .A..._-'-'----- . -~.-.-. _~-- ' {- --t..__ ~ ' _. _ _-~----------t- --- i ----.~_.~__._.__..----1-~ ' t t- _____ ' I !~- ~ 1 I .._.._.-..-__.._...1.._.._._..-'--- ~ J-------- , -'--'- ~---"--- ~-'-- --- -f- ------- ~ ~ i ------ ~ ~ --- -f------ ; ; i i ~ ; ~_ I -------f--...-----1.._._..-- r --- ----- --- I i --{--- -- _ , ~ i ~~ ' ~ _..__.`~_~ ^^--1-- ' -- -T-----+ .. __ _.._.._..__.._. .. ~.._.._...--------' ------- ------ -±--- ------- r-----...------ ------ --- ----- i ; I {---._._ _. _..------- ...-"---"----.. -----.._.._.. i ~---------- -- ~____ -±-- ---- -'-- ; I ; ~ I ____.-.._..-----.+...-------.._.._..~._.~---...__._.._.~.._..------ --------- ..._...__._.._.._..-. ---.._.__ i i ~ - - ----- --4-- 02006 Prepared by Signa Engineering Corp Page 32 ~ + Brooks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska Collapse Design • Internal - Above/Below Packer (Fluid Level @ 8,000' TVD) • Extemal - Mud & cement mix water 0 iooo 2000 a~o aooo c ~ ~' 8000 0 ~ ~ooo ~~ ~ sooo ~0000 »ooo izooo 19ppp +-~x 0 1000 2000 3000 4000 5000 6000 Cdlapse Ftatig (psig) 7" Collapse Design Plot Axial Design • 100,000 Ibs overpull 0 1000 2000 aooo 4000 ~ 5000 m° o~ ~ ~ooo ~ ~ 9000 ~ooao »ooo ~2000 ~sooo ~ ~ ~ o iaoooo zooaao aooooo aooooo sooooo sooooo ~ooooo aoaooo Axiel Force (Ib~ 7" Axial Design Plot I ~ ._ ° ~ - ---- ~ ~_._..- -t- 3 ---) ~ ~ ' 1 I +~ign Load Line _ _ _ --'------ --{-----'---"I" X e Ratin i-~ _----- i -----..___.._...__~.~-----------i- --------t-- --•- ~ I I -- ------1- ---j-~_~~~~- -- i ~ ~ _ - -t-------- i --- , --t----------r--- i - '___'_'_'__"_' ~.'_____"__"_' I ~ ~ ~ . . . r_.'__ Y."__-.._ _'__~.._.__._'_._._..._..._ _'_'_'~ _'.._.__..-.._.. . ~ ~ I ' I __._.__.._ . --'-'--'-----._..-~ . .. f--.._..-..--'--"-f . '-'--- --}-..__..-..- '"1-'-'- . _.._..---'- '-'---"-'--'- ---"- ~ ----"-'- i I ------------i'------- I i _.._._.._ t------------ , --- -t---- ------...__. j -.._.._.._._...-- ------ --- ( ...---- ----------.._. ---------- ------------ --------- i ~ ~ -------------}-..-.._.._._.__._..._._ i ..------------ - _. i_..---- ' ---- --.. . _ --- ---r----.. i i _..------- , ----------..~.__.._..---._..-.._..~ , _ ' -------------- -----------t--------- -t-- _..----- ! _ ._ . ----.._._.._. ------------ j _. . .__ . _ _ _ __. _..-----._..._.. ---- _._ _ - --- . .. . . i i . ._ . _.._..._..._..__.~ .._.._.._.._.. ._.. ... ~ I _.._._.._.._.._...-----t- ----...~ i i __.._._.._. ____ ~ ------------~------------~ -t---- ------- i ~ L+ ..----`-a----- i ---'-~----' - -'--- --j'- --- ~ ' -~"--'~ ---"- -~--'----' - ~ + --'-..__..-..__ . . ~'---- ' ~...---'---- --- I --~-..-..---.. _..._...-~~-------..__.. __...----- ~ I --.._..----.._..i.._.._..._.. i _.._..-i.._.._..._..._..._... ~ _.. ~----- _...i._._..._..._..--- ----a---- ~ ~.' _.__. _. --.._.._..-.._.-... .. .. . i -.-.-. . . . .1..---.._.__..._... - . . .. _._._'_. ~ _'___ '_ _+_._.._._...~--..._...----"--- ~ "__"__~'_'_ I I i _ ~'__ ~ I ' _ _ "'__~'"__~._~ _..__._._,~~. ' r~___~-- L-_.._.~. -----~ _ ~ _._. ~. ._a...._~---._~..__1-------- ~ i ~ - -j-- i - I --j- --I------i--------- I i .._..__ ----~----- ~-..~. --: i -+-'- - ~ ~ ~_~---- --- --- j ~ ____ _-------r--~_ ' _._-t--_.~._____ ~ _...~___~ ~ ._. _ +_~ _. ~~.~_. __.~ I ~ -'-----r._..._._.. ' --------+----- '--'--__. -- -- ~ ' -----~--_- -- . . .. ~ '-'--' ~ ---+----._... --..--..._.._..__. . -'--'-'---"---'---I I _.._._ i..__________ ~.._..------~ i ' "_"____... j .._.._"'_ i , _"_..-.~.' '_'_"_' ' _'~_"_'__" i _'__~_' __"_'__~'_.._..._..-._.__ ' i ~ ~ + Oesign Load L~e ---- X e ftatn _... _... _... _... _.. ~ . _ _. -.. _... _... I _..__ _..._ ~..--- ------ i _'_'._..._"__._....~.-..-.._'_'_..._... I _'._.____~_"'-_ ~ _~...____.._.j._ __ i ~-__i_`____- i --.~.~~.-~---- - --._...__. i-- ~~ ~ --'-----" ~---.-'-"-"- ---------..._ -~ __---- -- - _"_ _"_' _. _.. ~.. _. ~.. _ _"_' I 02006 Prepared by Signa Engineering Corp Page 33 . ~ ~rooks Ran~e Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 9 Cement Design 9.1 9 5/8" SURFACE CASING CEMENTING DETAIL 9 5/8" surface casing will be cemented to surface using Arcticset lead cement followed by Class G. 250% of excess cement is planned through the permafrost and 50 % excess below the permafrost. Should cement not return to the surface, the well will be cemented to surface through the TAM ported collar. 9 5/8" Surface Casing Cementing Tall Slurry Lwd Slurry RKB 30 feet RKB 30 feet Last Csg OD 16 i~ches Last Csg 00 16 inches Last Csg ID 15.25 inches Last Csg ID 15.25 inches Last Csg set at-BRT 80 feet Last Csg set at-BRT 80 feet Pertnafrost Depth 1600 feef Permafrost Depth 1600 feet Hole Size 1225 inches Hole Size 1225 inches Casing OD 9.625 inches Casing OD 9.625 inches Casing ID 8.921 inches Casing ID 8.921 inches Casing Depth 4027 feet Casing Depth 4027 feet Csg/Csg Mnulus 80 feet Csg/Csg Annulus 80 feet Pertnafrost OH 1600 feet Permafrost OH 1520 feel OH Length Below Pertnafrost 2427 feet OH Length Below Pertnafrost 2427 feel Excess Csg/Csg 0 % Excess Csg/Csg 0 % Excess Permafrost 250 % Excess Permafrost 250 % Excess OH 50 % Excess OH 50 % Float Joint 80 feet Floa~ Joint 80 feet Tail into last csg? No - Lead into tast csg? Yes - Length of Tail 1000 feet Length of Lead 3047 feet Top of Tail-BRT 3027 feef Top of Lead-BRT 0 feet Length of Tail-Csg 0 feet Length of Lead-Csg 80 feet Length of Tail-Permafrost 0 feet Length of Lead-Pertnafrost 1520 feet Length ot Tail-OH 1000 feet Length of Lead-0H 1447 feet Ann Cap Csg/OH Ann 0.056 Bbls/ft Ann Cap Csg/OH Mn 0.056 Bblslft Mn Cap Csg/Csg Mn 0.136 Bbls/ft Ann Cap Csg/Csg Mn 0.136 Bbls/ft Casing Capacity 0.077 Bbls/ft Casing Capacity 0.077 Bbls/ft Cem Volume Csg/Csg Mn 0.0 Bbls Cem Volume Csg/Csg Mn 10.9 Bbls Exc Cmt Csg/Csg Mnulus 0.0 Bbls Exc Cmt Csg/Csg Mnulus 0 Bbls Cem Volume Csg/Perm Ann 0.0 Bbls Cem Volume Csg/Perm Ann &4.8 Bbls Exc Cmt Csg/Perm Annulus 0.0 Bbls Exc Cmt Csg/Perm Mnulus 212.1 Bbls Cmt Volume Csg/OH Ann 55.8 Bbls Cmt Volume Csg/OH Ann 80.8 Bbls Exc Cmt Csg/OH Annulus 27.9 Bbls Exc Cmt Csg/OH Annulus 40.4 Bbls Total Volume Mnulus 83.7 Bbls Total Volume Annulus 428.9 Bbls Shoe Volume 6.2 Bbls Shoe Volume 0.0 Bbls Casing Capacity to FC 305.1 Bbls Casing Capacity to FC 305.1 Bbls Total Slurry 89.9 Bbls Total Slurry 428.9 Bbls Total Slurry 504] CF Total Slurry 2407.9 CF Tail Slurry Lead Slurry Cement Deslgns Tail Cement Amount 435 Sxs Lead Cement Amount 541 Sxs Slurty Type G Slurry Type ArcGcset Lite Slurry Densily 15.8 ppg Slurry Density 10.7 ppg Slurry reld 1.16 CF/sx Slurry Yield 4.45 CF/sx Slurry Water GaUsx Slurry Water GaUsx S2 0.5 % D46 0.2 % D65 0.3 % D167 0.4 % 02006 Prepared by Signa Engineering Corp Page 34 ~ ~ Hrooks Ranye Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 9 5/8" Surface Cementing Instructions No Item Remarks 1 Port Collar ~nstall a TAM ported cement collar at -1000'. Have combo tool made up on stand of DP aand stood back in the vent a 2nd cement sta e is re 'd 2 Fillup Tooi Use Frank's top drive fillup tool (Supplied by GBR) 3 Displacement Displace with mud 4 Mud Condition mud as thin & light as possible to aid in mud removal (refer to mud ro ram 5 TOC Surface - 50% excess below permafrost, 250 % excess through permafrost 6 Pressure Test Test lines with water to 3000 psi before starting job 7 Lead Slurry Lead slurry contains freezing point reducer so cement will set instead of freeze 8 Excess Cement Make sure rig & vac trucks organized to safely handle cement retums to surface 9 Top Out Use tail cement slurry if no retums to surface 10 Pump Rate Pump and displace cement at 8-10 bpm. Slow rate if losses observed. 11 Pumping Time Total job time 2 1/2 hours; Min pump time lead = 4 hrs, Min pump time tail =3hrs 12 BHT Static temperature estimated 70 deg F at 4000' MD 13 Mixing Water Have cement company pick up sample at rig and test 14 Strength Tail cement should have > 1700 psi compressive in 24 hours 75 Circulating C& C mud one full circulation before pumping cement 16 Spacer 50 bbls CW100 followed by 50 bbls MudPush II mixed at 10.5 ppg 17 WOC Minimum of 12 hours before drilling out. Catch surface samples and observe settin u at room tem erature. 18 Wiper plugs Use top and bottom plug (Double plug cement head with swage required) 79 Notification No6fy AOGCC before job 20 Final Pressure Differential pressure -500 psi when plug bumps. Pressure up to 500 over final pump pressure and bleed off pressure to check floats. If flo leak, closein surfac ntil cement sets u. 21 Pipe Movement Attem t to recirocate pi e 10-15' during job if hole conditions allow. \_ ~ ?' ~ . ~~ c~ ~~'~~j~~~'~ ~~ ~S~~f ~c~~ ~C ~ ~ t 1 PS~ .. , , ats "~ /__... V 9 5/8" Surface Casing Cementing Equfpment Item OD Quant Location Description Float Shoe 9 5/8 1 Bottom of pipe Weathertord 303 Float Shoe Sure Seal 3- PDC Drillabl Float Jts 9 5!8 2 2 each Float Joints Centralizer 12 1/4 4 2 on each FJ Straight blade rigid centralizers with collar clamps Float Collar 9 5/8 1 In top FJ Weatherford 402 Float Collar - PDC Drillable Centralizer 12 1/4 40 From collar to clamp 10' below Straight blade rigid centralizers with callar clamps 02006 Prepared by Signa Engineering Corp Page 35 ~ ~ Brooks Ranae Petroleum a subsidiarv of A VCG_ LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 7"- Cementing lnstructions No Issue Remarks 1 Fiilup Tool Use Frank's top drive fillup tool (Supplied by GBR) 2 TOC Cement top above top of HRZ - 9607' MD (7940' TVD) 3 Pump Rate Pump and displace cement at 5-7 bpm. Slow rate if losses observed. 4 Displacement Disptace with 10.5 ppg treated brine 5 Pumping Time Total job time -3 hrs; need 4.5 hour plus pumping time 6 BHT Static temperature estimated at 268 deg F at 12978' MD 7 BHCT Bottomhole circulating temperature estimated at 190 deg F 8 Pressure Test Test lines with water to 3000 psi before starting job 9 Mixing Water Have cement company pick up sample at rig and test 10 Strength Tail cement should have > 2000 psi compressive in 24 hours 11 Circulating C& C mud minimum one full circulation before pumping cement 12 Spacer 40 bbls CW 100 followed by 40 bbls MudPush II mixed at 10.5 ppg 13 WOC Minimum of 8 hours. Catch surface samples and observe setting up at room tem erature. 14 Wiper plugs Use top and bottom plug (Double plug cement head with swage required) 15 Notification Notify AOGCC before job 16 Final Pressure Differential pressure -950 psi when plug bumps. Pressure up to 500 psi over final pump pressure and bleed off pressure to check floats. If floats leak, close in surface until cement sets u. 17 Pipe Movement Attempt to reciprocate pipe 10'-20' during job if hole conditions allow. 7" Intermedlate Casing CemeMing Equipment Item OD Quant Location Desc~IpUon Float Shoe 7 1 Bottom of pipe Weathertord 303 Float Shoe Sure Seal 3 Float Jts 7 2 2 each Float Joints Centralizer 8 3/4 4 2 on each FJ Straight blade rigid centralizers with collar clamps Float Collar 7 1 In top FJ Weatherford 402 Float Collar Centralizer 8 3/4 1 Middle of 3rd jt Straight blade rigid centralizers with collar clamps Centralizer 8 3/4 30 From collar to clamp t0' below Straight blade rigid centralizers with col~ar clamps Y 02006 Prepared by Signa Engineering Corp Page 37 ~ ~ Brooks Ranqe Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 10 Evaluation Program 10.1 OPEN HOLE LOGGING Sak River 1- Open Hole Evaluation Program Co Mode Log Name 12 1/4" Surface Hole 8 3/4" Production Hall MWD DM (Dir Module) Surf - 4027 MD 4027' - 12,978' MD Hall MWD PWD Surt - 4027 MD 4027' - 12,978' MD Hall LWD GR SurF - 4027 MD 4027' - 12,978' MD Hall LWD EWR Resistiviry Surf - 4027 MD 4027' - 12,978' MD Hall LWD ALD Density None 4027' - 12,978' MD Hall LWD CTN Neutron None 4027' - 12,978' MD SLB OH WL Dipole Sonic None TBD SLB OH WL MSCT - Mech Wall Coring None None SLB OH WL MDT - Formation Testing None Zones of Interest SLB OH WL Other None None Open Hole Evaluation Program 10.2 CONVENTIONAL CORING Conventional coring may be perFormed based on the presence of hydrocarbon shows in the target formations. Baker Inteq's HT Series core barrel (6 3/4" OD by 4" ID) with aluminum inner tubes will be utilized. The core bit will consist of a BHI ARC425 (IADC M354) 8 3/4' PDC. The ARC425 is designed to core at optimum penetration rates (> 50 fph) and to produce uninvaded core. A detailed conventional coring manual is included in the appendix. 10.3 MUD LOGG/NG Sak River 1= 0pen Hole Evaluation Program Co Mode Log Name 12 1/4" Surface Hole 8 3/4" Production Hall Mud Log Gas Detection SurF - 4027 MD 4027' - 12,978' MD Hall Mud Log Samples Every 30' Every 30' (10' in zones of int) Hall Mud Log Drilling Parameters Surf - 4027 MD 4027' - 12,978' MD Hall Mud Log Other None None Mud Logging 02006 Prepared by Signa Engineering Corp Page 39 ~ ~ Brooks Ran4e Petroleum a subsidiaq~ of AVCG. LLG Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.3 BOP DR/LLS BOP drills are essential to familiarize drill crews with the sequence of events involved in shutting in a kick, and their individual responsibilities. They must be held on a routine basis as frequently as required to bring the crews' response time down to a minimum, hole conditions permitting. Once the Drilling Supervisor and Contractor Toolpusher are satisfied with the standards set by the crews, kick drills will be conducted at least once a week. 11.3.1 KICK WHILE TRIPPING This drill will be conducted when the BHA is inside the last casing string to avoid the possibility of differential sticking. Without giving prior notice, the trip tank float is raised by the Toolpusher or Drilling Supervisor to simulate an influx. The driller is expected to take the following steps to shut in the well. • Stab and make up drill pipe safety valve, close it. • Close the annular preventer. • Open the HCR valve. Chokes should be in closed position. • Start recording pressures, and also pit gain when stabilized. • Call toolpusher and, inform him that the well is shut in. • Record the time for the drill on the IADC drilling report 11.3.Z KICK WHILE DRILLING This drill can be conducted in either cased or open hole. However, if the drillstring is in open hole, the well will not be shut in. The choke is closed in for drilling. The float in the active pit is raised to simulate an influx. The driller is expected to detect the gain, and take the following steps: • Pick up off bottom, stop pumps, check for flow • Report to Toolpusher. • On the next trip out of the hole, with the BHA in the casing, the top drive can be made up, circulation resumed, and the following procedure used to complete the drilL• • Close annular and open HCR valve. • Record pressures. • Call toolpusher and inform him that the well is shut in. Record casing and drill pipe pressures. • Record time taken to complete drill and record on the IADC report. 02006 Prepared by Signa Engineering Corp Page 41 • ~ ~rooks Ranae_Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska Mud Loggers & Gas Detection in Mud returns - Gas in mud returns observed by the mud loggers should be monitored closely. This is especially important in surface hole since gas readings may be the only indication that a potential gas zone has been penetrated. If gas readings are noted, also analyze LWD Resistivity measurements for any indication of gas shows. Mud loggers should immediately notify driller and company men when high gas readings are observed, especially in surface hole. • Drilling Breaks - One of the first indications that a kick is about to be taken. A drilling break will usually indicate that a more porous, permeable formation has been penetrated, with the possibility that an influx will be taken if the mud column is underbalanced. It is policy to flowcheck all drilling breaks. • Change in pump speed or pressure - If an influx occurs while drilling, the fluid column in the annulus becomes lighter and the mud in the drill pipe begins to u- tube, at this point the driller may observe a pressure drop and an increase in pump strokes. • Hookload Increase - Displacement of drilling fluid with an influx of hydrocarbons will reduce the buoyancy of the drillstring, causing an increase in hookload. However, by the time a reduction of string weight is noticed, a considerable influx will already have been taken. • Pit level Increase - The most reliable indicator of a kick is a gain in pit volume. Therefore it is critical that there is good communication between the Driller and pit crew. Mud must not be added to, or transferred from the active system, or any solids control equipment operated without the driller's knowledge. Any pit level increase must be flowchecked. A kick may occur during a connection due to the reduction in ECD when pumps are shut down. Detection is made more difficult by the volume of mud from the flowline returning to the pits. It is important to be aware of how much this return volume is on a connection so that any additional influx can be detected. Mud loggers should carefully observe the rate of increase in pit level during a connection, as a faster rate of return will be the first indication that a kick is taking place. • Return Flow Increase - An increase in return flow is a good kick indicator while drilling and, if it can be detected, will provide the first warning. Incorrect fill up volumes on a trip - Most kicks occur while tripping. Hole fill-up volumes on a trip must be carefully monitored and a trip sheet filled out. Gas Cut Mud - If a small influx was taken and no pit level increase detected, the first indication that a kick has occurred may be gas-cut mud at the flowline. 02006 Prepared by Signa Engineering Corp Page 43 ~ , Brooks Ranqe Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska Once the pressure equalizes across the valve it will open, and a change in rate of pump pressure increase will be noticed. The mud pump is then isolated at the standpipe and the SIDPP recorded as the pressure observed immediately before the valve opened. If the casing pressure starts to rise, the pump is stopped immediately. 11.~J.4 FLOW CHECKS Flow checks should be conducted as determined by the Drilling Supervisor. If the well is suspected to be flowing, the following procedure should be implemented immediately: • Pick up such that any tool joint is clear of the BOP's ~ • Shut down the pump ~p~~ ~.,,,~J~~-~~ ~~~~~ • Check for flow. If the well is flowing - ~~ • Close the Annular Preventer ~ ~ ~~ ~ 5 ~~ ~' ~~`J~~ • Open the HCR valve .~o~~a~~~~ vJ~~ • Choke should be closed ~~~~S ~~~ ~ C~ • Record the Shut-In Drill Pipe Pressure (SIDPP) and the Casing Pressure (CP) or annulus pressure immediately. 11.6 K/LL METHODS 11.6.1 WAIT AND WEIGHT METHOD The Wait-and-Weight method involves circulating out the kick with kill weight mud in one circulation. The Drillers Method is a finro circulation method. On the frrst circulation the influx is circulated out of the hole with the existing mud weight using the choke to maintain the required pressure differential. On the second circulation, kill weight mud is circulated round the hole. 11.6.2 THE DRILLERS METHOD The Drillers method may be used if it is not practical to start the Wait-and-Weight method. This could be the if there is insufficient weighting material at the rigsite to weight up the system to the kill weight required, or if the mixing system on the rig was not capable of keeping pace as the kick is displaced 02006 Prepared by Signa Engineering Corp Page 45 ~ u Brooks Ran~e Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.7 WELLHEAD VetcoGray 16"X9 5/8"X7" 5K psi Type MB-230 Multibowl Wellhead System 02006 Prepared by Signa Engineering Corp Page 46 ~ • Brooks Ranqe Petroleum a subsidiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.8 DIVERTER SCHEMATIC -345"- -Top of Rotary Table- -316"- -Btrn of Rotary TaWe~ -29 t'- -TOp of Beli N!Ppl~ -263"- -Btm of Crene Reil Beam~ -249"- -Est C~'L oi Fbwlin~ v~ 0 -185"- -Top of 27 ':.' Hydril- a I -132"- -Top ot Diverter Spool- ; -65 - C,'L ot 16" Outlet -•i6"- -Top oi Vetco D{verter Head- -36°- - •Cellar Top:Grovel Grode- - ~ n -16"- o -16 ConduGOr Cutolf- ~ ~ N -Zero- " ~ Top of Rig Mats~ `~ ~ --6 - Top of Ice- T ~ ~24°- Tundr~ y -329"_ -3q5"_ -351 "- ~369"~ Nabors Rig 16E - 21 '/4" Diverter System on 16" Conductor -ze~o-- I ~29°_ -54°~ -82"- -96"- "v v -160"- -213"- I ,r-Z80 - ~ y_~ ~_ 02006 Prepared by Signa Engineering Corp Page 47 ~ ~ Brooks Ranqe Petroleum a subsidianr of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.9 BOP STA CK -Top of Rotary Table- -316"- -291 "- -263"- -255"- -244"- -Btm of Rotary Table- Top of Bell Nipple- -Btm of Crane Rail Beams- ~ -Est C/L of Flowfine- a, Top of Hydri~j~ ~ -Top of Upper -Zero- _2g^_ ~ -54"- I A -90"- ~ -101"- -150"- I 81ind Rams -141"- -Top of Mud -118"- -Btm of Mud Top of MB -204"- -227"- UJN .. X 11' SK ~26~^~ ~q~:::_ ~~'" ~.- ~„ -276"- _ ~ -296"- T _ -309"- o Vetco Multibowl System 11" 5,000 psi ~ -329"- (V N ~ I -345•- W ~ ~ -351 "- ~ ~ m -369"- - •Cellar ToplGravel Grade- - ~ -16" Conductor Cutof~ 0 Top of Rig Mats-- Top of Ice- ~ Tundra- y Nabors Rig 16E BOP Stack 02006 Prepared by Signa Engineering Corp Page 48 • • Brooks Rapye Petroleum a subsidi~tv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 11.10 CHOKE MANIFOLD ~~~~~~ ~,,,9„~ ~,~t .. le~m descripnon . 1.24.7.13.ta20 Mr.E'.~oyTj{+.~E?1~1~".10.i,~M,`P$IMTfwytifilp'Jrl'~~a _-~ ~ iR.19 McEvoyT~paEitl6'-1U,tlqWtil6laiwalf~l?'val~.? ~ '.4.54.10.1?tf.1'.i DEIA4::~TyFwCHatA"-SiN..,Pr~l6tenucll.tr'J:do- ", t Tii~Gl~, a. t 7:'-i n::.c.::.P`;I Nw~~.n> H:A~anl~ ...Ir,4- - TI . ~F~II~(~.ia~;< .t t~'-1:~~.~. ~,P,.;IIA.iruil~.:h:.A« . 17 ~~ 5 ~I 16 12 21 I •'.-`.'9 y ~ ~ ~I ~~' - '~'`--~_~~ '~~ ~I 3 8 15 `~i~' ~ . . ~, ia ' ~ 19 2 ~".?A"~ . .. . . 13 ~` . ~~d 6 ~+ :~•lina Hudie Vekr< 18 ~~ r 1; -- µ..~~,~~~ . ~ . ~ . ~ ~ ~i H.~ndl. Ynh: rs . fJ~miak:Cl..~..-f ~ ~-°vc. Gate~. i r~~ ~ Re: , n r~ Nabors 16E 3 1/16" 10K Choke Manifold 02006 Prepared by Signa Engineering Corp Page 49 ~ ~ ~oks Ranqe Petroleum a subsidiarv of AVCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 12 Rig 12.1 R/G SPECIF/CATIONS • Mast - Dreco Model M14225-133013 beams leg mast. Two skidding beams each 7'6"W x 3'0"H x 50'0" L. 1,330.000 Ibs gross nominal capacity. Air powered adjustable casing stabbing board and safety belt for stabber. Substructure - Dreco Model Slingshot elevating substructure system. This assembly is designed to set in all floor equipment. connect mast, set in both floor cantilevered doghouses and install 50' high wind walls at a safer working elevation of 6'6" from ground level. The entire mast floor is then elevated to the drilling level of 29' from ground level by means of finro large low speed hydraulic winches. • Drawworks - Oilwell E-2000 1-3/8" Lebus grooved drum, 4 forward and 2 reverse gears ~ • Traveling Block/Hook - Oilwell A500 500-ton six 1-3/8" grooved x 60" OD sheaves with Byron Jackson 5500 500-ton Dynaplex hook • Rotary Table - Oilwell 637-1/2" opening, capacity 650-ton (dead load) and provides a nominal 50 or slower rpm in low gear or a nominal 185 or slower rpm in high gear. • Top Drive - Varco Model TDS-3 rated at 36.000 ft-Ib continuous torque. • Engines - Caterpillar D-398 900 HP each at 1200 rpm (sea level), five turbo charged, after cooled, diesel engines. Each unit equipped with arctic automatic thermostatically controlled jacket water heater systems. • Generators - Kato 700-kw 600-volt 1200 rpm non-sparking; generators, single bearing with automatic overload protection system and automatic thermostatically controtled electric heating elements. • SCR Power System Ross Hill retrofit of a GE Generation three SCR System complete with 5 generator control bays and three 2000-amp SCR bays with multiple assignments • Main Mud Pumps - Two Oilwell A-1700-w/ 5000 psi fluid end. 02006 Prepared by Signa Engineering Corp Page 50 ~ ~ ~rooks Range Petroleum a subsldiarv of A VCG. LLC Sak River No. 1 Drilling Program Gwydyr Bay Area, Alaska 13 Gas Detection Combustible gas and H2S gas detectors will be provided by Nabors Alaska and will be located on the rig as per regulatory requirements. 02006 Prepared by Signa Engineering Corp Page 51 • ~ Brooks Range Petroleum Corporation a subsidiary ofAVCG, LLC December 6, 2006 AOGCC Address Re: Application for Permit to Drill: Sak River 1(Exploratory Test) Sak River lA (Exploratory Test - Planned Sidetrack) Dear Commissioner: Brooks Range Petroleum Corporation hereby applies for Permits to Drill the Sak River 1 and the Sak River lA (a planned sidetrack from the Sak River 1 borehole) as onshore exploration test wells. As shown in the attached drilling programs, 12 '/4" hole will be dr~~lled in Sak River 1 and 9 5/8" surface casing set at approximately 4000' MD. 8 3/a" hole will then be directionally drilled to approximately 14,000' MD to evaluate prospective hydrocarbon bearing sands. After evaluation is completed, the Sak River 1 borehole will be plugged back in accordance with AOGCC regulations and the Sak River lA sidetracked below the 9 5/8" casing at approximately 4,050'. The lA will then be drilled to test prospective hydrocarbon bearing sands located in a different geological position than the #1 well. If producible hydrocarbons are found, 7" production will be run and the well completed for production. A production test using temporary production facilities is then planned after the rig is moved off af location. If producible hydrocarbons are not found, the well will be plugged and abandoned according to AOGCC regulations. Please find attached information as required by 20 AAC 25.005 (a) and (c) for your review. Pertinent information for both wells attached to this application includes the following: 1. Sak River 1& lA Form 10-401 Application for Permit to Drill per 20 AAC 25.005 (a) 2. Fee of $100 for each well payable to the State of Alaska per 20 AAC 25.OOS (c) (1) 3. Evidence of bonding as required by 20 AAC 25.005 4. Sak River I& 1A directional plats showing the surface and bottom hole Iocations ~roposed far the wells per 20 AAC 25.005 (c) (2) 5. Diagrams and descriptions of the BOP and diverter equipment to be used as required by 20 AAC 25.035 (a) (1) and (b) 6. Sak River 1& lA casing and cementing programs are attached as per 20 AAC 25.030 7. Sak River 1& lA drilling fluid programs are included as set forth in 20 AAC 25.033 8. Shallow seismic analysis as required by 20 AAC 25.061(a) is included. 9. Based on surrounding data, H2S should not be encountered in this well. H2S monitoring equipment will be provided and functioning by Nabors Alaska Drilling as per their standard operating procedures. Designated contacts for reporting responsibilities to the Commission are as follows: Sundry & Completion Reports Larry D. Smith - Drilling Manager (20 AAC 25.070) 830-832-5605 1400 West Benson Boulevard, Suite 510, Anchorage, Alaska 99503 Tel: 907.339.9965 Fax: 907.339.9961 . • Geologic Data and Logs Douglas S. Hastings - VP-Exploration (20 AAC 25.071) 907-865-5802 The anticipated spud date for Sak River 1 is January 10, 2006 and for Sak River lA is February 5, 2006. If you have any questions or require further information, please contact Mr. Doug Hastings at (907) 865-5802 or Mr. Larry D. Smith (830) 832-5605. Since ely, L i~~/~ i~ Dougl . Hastings VP - ploration Brooks Range Petroleum Corporation ~ ~ Brooks Range Petroleum Corporation a ssrbsidin~y qJ'A~CG, LLC December 6, 2006 Steve Davies Alaska Oil and Gas Conservation Commission 333 W. 7th Ave. Anchorage, AK 99501 Dear Steve, Re: Drilling Hazards for the Sak River No. 1 and North Shore No. 1 Wells Please find attached the shallow hazard analysis originally completed by BP back in December, 2001, for the Sak River No. 1 well. Essentially nothing has changed regarding the Sak River No 1 surface location since this work was completed. However the Sak River No. 1 bottom hole location has changed and I have updated the maps in the document to show the revised bottom hole locations. Brooks Range Petroleum Corp. will also be permitting in the near future the North Shore No. 1 well which is located approximately 1.5 miles south of the 5ak River No. 1 surface location. Since the BP study also covered this area, I've also plotted its location on the maps. Brooks Range Petroleum doesn't own the shallow seismic data directly under the North Shore No. 1 surface location so I can't add anything to the study already completed by BP. Therefore I hope you will accept this study for the shallow hazard analysis for both locations. If you have any issues with my proposal please let me know. I can be reached at my Brooks Range telephone number which is 907-865-5803. Sincerely, ~~ ~ Larry J. Smith Chief Geophysicist I~UO ~6'est I3erasc~n Boailc:~~af•d, Suite. ~10, ,~lnclroi•cige; .Alaska 99~U.? 7e1: 907.339.996_5 F'a.e: 907.334.9961 • i To: Steve Davies (A.O.G.C.C.) From: Chet Paris and Odd Fuglestad (BP Exploration Aiaska Inc.) Subject: Drilling Hazard and Risk analysis of the Sak River No. 1 well Date: December 6, 2001 Steve, _ This letter documents BPXA's drilling hazard and risk analysis for the proposed Sak River No. 1 well scheduled to spud January, February, or early March of 2002. The analyses of both the 3D seismic data and the offset well show no indications of drilling hazards or risks. The analyses of this data are not . defmitive, therefore, BP Exploration will work on the assumprion that the possibility of encountering drilling hazards exist and establish processes to mitigate the associated risks. As usual, BPXA make every attempt to conduct ouc drilling operations in a safe and environr~ntally responsive manner. In our drilling hazard and risk analysis of this well we used our interpretation of the 3D seismic data obtain~ over the well location, the data collected from the nearby wells, which include the Cities Gwydyr Bay State A-01 (6,500' from BHL), the Mobil Gwydyr Bay State Unit-01 (14,000' from BHL), the Conoco Gwydyr Bay State-01 (15,0~' from BHI.), the Mobil Gwydyr Bay South (15,000' from the BHL), Amerada. Hess Northstar-03 (16,000' from the BHL) and the Sohio Long Island-O1 (20,000' from the BHL), along with field data from the Northstaz Field (4 miles northeast from the BHL.), the Aurora Field (4 miles south of the BHL), and the Milne Pt. K pad development (9 miles we~t of the BHL). The following is a summary of our analysis of the potential hazards and risks of drilling the Sak River #1 well: • Our analysis of the nearby wells and oil fields indicates that the risk of encountering gas hydrates in ~ this well is low. As shown in the nearby Milne Pt. Field oil field, gas hydrates are not detectable with conventional seismic data due to their composition. The mud and wireline logs from the nearby wells give no clear indication of gas hydrates. Maps published by the USGS indicate that the Sak River well location is northeast of the Eileen gas hydrate aecumulation. BP has documented to the AOGCC that there are no gas hydrates in the Northstar field which is in a similar geological setting to Sak River #l. Interpretation of the 3D seismic data and the data from the nearby wells indicate a low probability of encountering significant shallow gas in the Sak River #1 well. The brightest amplitudes observed in ihe 3D data are at the SV4 and SV6levels and appear to be due to stratigraphic variations and not gas. The mud log data from the nearby wells have only a few weak gas shows in the Sagavanirktok and Ugnu Forrnations due to low concentrations of gas in water and coal gas. The wireline logs from the nearby wells indicate no gas sands but several coal gas intervals, the thickest being a 20' section in the Long Island-01 well below -4,289' TVDss. This analysis agrees with the more extensive shallow gas analysis of the Northstar Field presented to the AOGCC. • InterFretation of the 3D seismic data indicates that the proposed Sak River #1 borehole crosses only one small north-south trending fault (< 50') at approximately -2,800' TVDss that dips to the west. ~ ~ AnaIysis of the 3D seismic data and the nearby well data indicate that the Sak River #1 well will penetrate a nortnally pressured section to its final TD. The geopressure gradient that the Sak River #1 well will encounter was estimated using the sonic log interval transit times and mnd weights from the nearby wells and the 3D seismic stacking velocities along the planned well path. Well plots of the sonic transit times from the neazby wells indicate thax the shales show a normally pressured, hydrostatic gradient thtough the TD of the well just below the Kuparuk interval. The notable deviations are the organic-rich basal Brookian and HRZ shales which are lower velocity due to their compositioa. The mud weights from the nearby wells also indicate that the Sak River #1 well will encounter a normaily pressured section. Most of the mud weights range between 9 ppg and 10 ppg, with none exceeding 10.5 ppg. The seismic stacking velocities along the Sak River #1 well path also follow a hydrostatic gradient and comespond to the nearby checkshot surveys but with a lower resolurion. Please contact either Chet Paris at 907-564-4219 or Bill Bredar at 907-564-5348 if you would like a presentation regarding our analysis of the hazards and risks of drilling the Sak River #1 well or if you have any questions or further issues regarding this well. Thank ~You, / ,lc-- ~~~~~ Chet Paris ~~ ~~~ Odd Fuglestad ~ ~ Sak River-01 well hydrates/shaUow gas assessment from seismic Background Gas hydrate has been encountered on Cascade-01 and many Milne K-pad wells, 8-9 miles southwest of the planned'Sak River-O1 location. Hydrates have normally appeared below the base of the permafrost, typically at a depth of 2000-23~ ftss but may be present as deep as 3000 ftss. Free gas occurs below the hydrates. The closest wells, surrounding the Sak River-O1 well, GwydyrA-O1, Gwydyr-O1, GwydyrS-O1 and GwydyrU-01 appear not to have any of these problems (1.5 - 3 miles away). Hydrates/shallow gas from seismic Due to its composition, ~drates aze not detectable on conventional seismic. Only the free gas below the hydrates can be seen in the Milne area. Thus for the Sak River-O1 well only the risk for shallow gas can be assessed using seismic data. In general the seismic data is focused to image deeper targets and are noisy in the upper 400 msec due to low fold and permafrost. Base permafrost, which is the most likely seal of potential shallow gas, is poorly imaged on seismic due to its transitional character. Sak River-Ol Figure 1 shows the shallow section of the planed Sak River-01 on Fullsail3D line 12I4. The most likely position of base permaftost is shown. These correspond to a permafrost thickness of around 1500 ft in the well (12000fds velocity). The two brightest horizons below base permafrost, Intra SV6 and Top SV4, have been interpreted to get an idea about potential traps and amplitude variation. The well will penetrate a fault at 520 ms, corresponding to around 3000 ft. Figure 2 shows a TW'f structure map of horizon Intra SV6 (location of seismic line in figure 1 is indicated). Potential truncation with the base permafrost is shown in white. The twt contours are generally parallel to the truncation line, ~indicating no local trap around the Sak River-01 well. A lazger trap might exist, but then GwydyrS-O1 seams to already have penetrated it. Figure 3 is an amplitude trough map of the interpreted Intra SV6 horizon. A weak amplitude anomaly is shown in red azound the Sak River-O1 well. The nearby weils show the SV6 interval to comprise of fluvial sediments, on the contrary to the deeper SVl-SV5 se~uences which aze marine in origin. The anomaly probably represents a slightly sandier channel facies then seen in surrounding wells. Although very unlikely, the channel ~ ~ ~ feature could contain shallow gas trapped against the permafrost to the southwest. The depth of this intervaI is azound base permafrost, 1500-1800 ft. . Figure 4 shows a TWT structure map of horizon Top SV4 (]ocation of seismic line in figure 1 is indicated). This horizon truncates the permafrost outside the map area (azound the Cascade-01 well) and no trap is evident around the Sak River-01 well. Figure 5 is an amplitude peak map of the inteipreted Top SV4. High amplitudes (red color) aze evident in the 5ak River well but also in GwydyrA-Ol and Gwydyr-01. Conclusion Presence of gas hydrates cannot be evaiuated from seismic data. Presence of shallow gas in the 0-3000 ft section of the Sak River-01 well is considered low, but cannot be completely ruled out Highest potential seams to be related to mapped Intra SV6 horizon, just below the ~rmafrost from 1500 to 1800 ft. The risk is considered low since no robust trap has been identified and the weak ampIitude anomaly has the chazacter of lateral lithology variation rather then shallow gas. OF/11/30/O1 Well - Shallow Section ~~ ~ ^ Figure 1 Intra SV6 - TWT Stru~ture Map ~ i bp Figure 2 ~ • M ~ L ~ ~ ~ ~ ~ ~ W ~ ~y~~_J T 7~..~L ~/~ \ 1i/ ~/\ Y I ~ ~L~~.~1. T ~ ~ ~ ~ • Top SV4 TWT STRUCTURE MAP Top SU4 - Ampiitude Map File View Ho~irons Fautb M~ppi»g Contoun Wrils ~ ~k v ; -:~~ ~ ,t ~ ~~}- ~~ F ~n, •~ r: '~+:J~ i'' ~ ~ • r` y r ~, ~ ~:. Revised Sak River-01 ~~ , ~ ~ ~~, Mr `( __ ... . V~ ' -r0+ .t . , ".4~~ • t , , . ~ # ~' .,{~! ;: ., aj l. 1 ~'~~ rM ~ \ ~ / ~; , Sak River-1A ~ ,,~ ~ ~ ~ ''~ ~~+* /~ ~ ^' r f~ E-. ' _ . . -. .<., - . - . . . ~ _-, ,?~ r. - ~ ~ • . ~ . ~~ ~ ~~ • ~G`I ~ ~., . 1ex.. '~ . . . ~ ~ i~'a _< , ~ _ . ~` CiWY~~/tU-~ ~ ~' r, ,~ , - ~ ~ , ;~ ~~ ,i ~+ fi °~ ~r •' y~ . .x ~ ~ ~, ~• . ~: ~ . ,y, , 4 ~: ~t. , ~ ,~' , ~ ,. ~ - ~ e .S. ._~. ~ ~': ~ ~,' ~'~ North Shore-1 ~~ ~~ l.6tIE; iRAtE: X! Yt ~ HNZ t:;~r~ ~ :7yr;1-G1 1 iC fleip ~~ Figure 5 • ~ ~ r ~ GwydyrA~1, Checkshot compar9ed to 3 Vebcily Analysis ITT (us/~t) 1000 100 « • • • - Chedcstat RT • Seismic Data 10 +0 2000 4000 ~ 6000 a m 0 8000 10000 12000 ~ hn ~ i Sak River-01 Well, 5 Velocity Analysis ITT (us/ft) 1000 100 10 ,-___ .----- --------------- - -- ---- ----- _____, ~ , ~ ~~ ~ i +;~ ; ~ 1 ~ ` ~ i , i ; ~ I ~ j i .~. ; i 4 i ~ _ _ , MI . . . . . . _ ~ 2~~~ ~ + ~ ' •~ M ~ ~ ; . ~ ~ ~ ' ~ ~ ~ ~~ ~ ~, ~ !~~ i j ~ , i ~ ~ ~ ` j ~ •N ~ , ~ ~ ~ ~ . ~ ,..y_~ ~_,___r__ _._..____ __ _ . . . . ~ ------~ __.__ . _____ _. _ , 4000 ! . ; ~ ' ~ •. ' ~ , ~ ~ ~ ~ ~ .~ ~ ~ ~ ' ; ~ ~ ; ~ ..~ ~ .~ ~ ~ , , . , -~-~ - ~ . . . . ~ N . -•- -., . ~. --+--------.___ 6000 ~ f ~ i ~ ~ Q ~~ ~ ~ ; ~ •• j •• , i i , --f--- ; . ~ BHRZ .~ . . . . : 1 . ~ 8000 ; : ~ ~ _ _ ____ ~ ~~ir ; . ~ ; ! , f i __ ___ .----- ~~o ~ ~ , ' LCU ~+ .M ~ ' _~i~-. . M~M . . l ~~OOQ ~ { MN ~ ~ • r- ~ ~ i' •~M ~ ;~ i ' ~ , E ~ • Seismic Data ; ; , _ _ _ : 12000 b p s -- ~, MUD WEIGHTS FOR GWYDYRU-01 1,000 ~~ 3,000 aooo 5.000 C ~ 6,000 Q. 0 ~,ooo e,ooo 9,00~ 10,00~ 11.001 12,Od ao 0 Mt~ We~hts (~g) s.o ~o.o ~-~ ~~.o ~~.o ~~.o ~a.o ~s.a • ~ , . ' I . • ; ~ . , . , . -f-GWYDYRU-01 . • ; . • I ~ . . : I ; , ; i . . • i , . . . i ; . . ~ . . . ~ . ; , . . .~ . . ~ . ~ . . ; . j : ; , . ~ , . • ~ i . . ~ i . , , . ; . '~ . ~ . , . . ~ : I . ~ ' I . , . . ; . . . ~ I . ~ , ' ' ' • i • ~ -~--- ---f---- = - --- -- -- ~ : - : ~ base tar~et in Sak R~ver #1 - - --- . , • i I . : ~ ~ - -- -,--- -- ~ i -~--- ~ r 1 • i ~ ~ I . ~ . -- -" • ~ - -- -- - -- - - ~ ~ -. i ~ ' { : i . . ~ . ~ , . ----r--~ -- --- --- i ----- . . ~ ; ~ . I ~ . . I . , • ; . . !~ 1,060 2.000 s.ooo a.ooo S.00o ~ ~ 6,000 ~ a m G 7,000 8.000 9.000 10,000 1~~ 1 ~~ i MUD WEIGHTS FOR GWYDYRAr01 Mud Weights (~9) s.o ~o.o ~o~ ~~.o ~z.o ~s.o i~.o ~s.o 8.0 0 . , , : ± ~ i . . • ~ ~~GWYDYRA-01 ~ i ~ I ^ ~ . . • ^ I . ~ . : ~ • ; . ~ . . i ' I ~ : . ; , . ' I ' ' . . ~ I • i i . . . , ' ~ . , • ~ i I . . ~ . • ~ i ; ^ . i ^ i . . ; • : ~ . ' ~ . • ! J . ~ . ; : . ~ ~ ; i . ~ . -- . . i ' ! i . I , ~ . ~ . i . i ^ , ~ - i ..------~-- -~ - . . ' ' ---- . I . ; . , ; • ~ base target'in Sak Wver _L_._.. - . . . ; - i i ' I . . ~__ • ~ -- _..--- - - T-- , . , . ~ ; ~ , I _.. ._ -- - ._ -~- . T - ~ ~ ' I • • ~ ~ 1,000 1,000 3,~0 ~~ 5.000 G> F- t 6,000 Q. • G 7.000 8,000 9,000 10.000 11,000 12.000 ~ MUD WEIGHTS FOR GWYDYRS-01 Mud Weights (pP9) 9.0 ~o.o ~o.~ +~.o ~zo ~~.o ~a.o ~s.o a.o 0 . ~ . ; . . : , ; ~ ' ~ -~-GWYDRS-01 . I . . . . i . . i . . . . ; . . . ; i I • i . . . ~ . . . : . , j ~ . . . i . . I • ~ I : . i : i ~ : I ; I . . i j ; . ~ . ~ . ~ i i ^ ~ ~ . . i . . ~ . . ' I ~ - - . : : j I j • I ~ , : ~ • ~ . ~ --~ ~+ ba of tase get in Sak . 1 --- -- -- ' i • I . . - T_~_.. ~ .~-- 1 - . • ~ I ~ . ~ . ` _~_ - ' --- - -- - _ - ~- ;-- -- ~ . I ~ • ~ ~ ~ : . ; i ~ ~ ----~ ~--- -- . ; ; . . . . ~ . j . ~ ~ ~ ~ 7,090 2,A60 3,0~0 4,090 5.800 ~ ~ ~ ~~ ~ 7~0~ 8.A06 9,000 10,060 11 ~~0 ~ ~~~ 8.9 0 MUD WEIGHTS FOR LONGI-01 Mud Wei9~ (~9) 9.0 10A 10.5 11.0 120 13A 14.0 15.0 . : I . ; ~ : 1 ' ~ ~~L ONGI-01 . ' ~ . • . . • . . ~ ~ ~ , ~ , i t . ^ . . . . ' : I I i + I I . ^ . • . . ' . I , j ; i I i ; . . • . . . ^ . ^ ~ i ' ; ; i ~ ' i . ~ • . • . i ^ ~ i ; i ! • ~ • • • ` • • ' ~ I ~ ~ I j ~ ~ ~ ~ • • ^ • • ~ ^ ~ • ~ ~ ~ ' ~ I t I ~ __ - - i~ . . ~ . . ~ . ~ • ~ • f _- -_'. __ ~ , i i ' -- -- -- : t-- -T ----- base of 6arget in S~c Riyrer #1 . . . . . . ~ i ~ ~ i - ---- - ._.- - ~ . : • ~ ~ 1 ~ ~ i I ' i ___--__.-_-_._- ~ ~ • ~ • • • • • • i ~ i I I I I ~ ° Alaska~Deparhnent of Natural Resources La~ dministration System http://www.dnr.state.ak.us/las/Case_Abstract.cfin?FileType=ADL&F ~ ~ W..,.,~ ~.~. ,. . .~r~ ,~ ~ °.;, :~ . ~' {~~~~~~~~d~r's Search State Cabins IP1~tural ~sources ~~~.___ ~., ....,~ ~ ~, . ..~.. .. . : Alaska DN R Case Abstract File Type: DL File Number: ~ 390431 ~'. Printable Case File Abstract See Township, Range, Section and Acreage? ,~,,,9;; ... ,;~~~~;~ ~ Yes ~ No ~~ ~~~ 1 of 4 12/8/2006 8:43 AM ' Alaska~Deparhnent of Natural Resources Land Administration System http://www.dnr.state.ak.usllaslCase Abstract.cfm?FileType=ADL&F... . ~ 2 of 4 12/8/2006 8:43 AM ` Alaska. Deparhnent of Natural Resources Land Administration System ~ http://www.dnr. state.ak.us/las/Case_Abstract.cfin?FileType=ADL&F... ~ ~Cae ~s~ 3 of 4 12/8/2006 8:43 AM ' Alaska.Department ofNatural Resources Land Administration System http://www.dnr.state.ak.us/las/Case Abstract.cfin?FileType=ADL&F... ~ ~ Last updated on 12/08/2006. Not sure who to contact? Have a question about DNR? Visit the Public Information Cer~ter. Report technical problems with this page to the Webrt~aster. Site optimized for Netscape 7, IE 6 or above. This site also requires that all COE~I{IE5 must be accepted. Stats of Alaska Natural Resources LAS Home Copyriqht Pn~vacY Systerr~ Status 4 of 4 12/8/2006 8:43 AM ~ g ~ ~ Comprehensive Well Report Well Name SAG RIV ST 1 Mult Lateral No Field Name PRUDHOE BAY Slant Type Basin ARCTIC SLOPE Quad Name Beechey Point Stats Plugged & Abandoned Operator ARCO ALASKA INC Cmpl Catgry Orig Operator OrgTyp Deepest Fmtn OrgCat Facility/Project ELEVATION From MD TVD Dir Survey KB 58 Kickoff ~ Required? ^ DF Plug Back i Gr Hole 12942 12942 ' Recvd ^ Srf Logger Drilling Unit Mineral Fed ^ St d^ Native ^ SmpRq? ^ Acres ~ Interest MH ^ Fee ^ j H2S? ^ Desc Production Class Method Commingled Dwn Hole ^ At Surf ^ Dt Srf Apr Status Dt 4/19/1999 ~'~ Prmt App 3/15/1968 Prmt Exp Spudded 5/3/1968 TD Rchd Cmpltd I1/17/1968 lst Prod lst Inj PB Dt P/A 4l19/1999 Rel Dt ISIP Nat Prod ^ Nat Treat Oil / Gas Brine Surf Legal S: 4 T: lON R: 15E PM: U X Y Lat Long 866 Ft from N Line 2637 Ft fron W Line 70509334832 5945509.7688 70.2547269954 -148.34245311 BH Legal S: 4 T: lON R: i5E PM: U 866 Ft from N Line 2637 Ft fron W Line 70509334832 5945509.7688 70.2547269954 -148.34245311 Geologic Markers Boreholes, Strings, Equipment Specifications Specifications for Strings/Tubulars Strings Cemented, Intervals, Dates Cement & Plug Desc Info Completion Information for Screens, Open Hole, or Perforated Intervals Well-Specific Zones Zone Formations Well-Specific Stimulations Downhole Geophysical Logs, Drill Cores, Samples ~ • * ~ Comprehensive Well Report 50-029-20002-00-00 168-023-0 Log Type Legacy Log Description Logging Contractor Confidential _ End Conf Run Date Recvd Dt Top Base Ref Elev Measd BH Temp Missing Interval LeQacv LoQ Descrintion / Comments Other ~ I 2/ 18! 197 5/5/1987 9094 12934 ^ 9094-12934 Well History Effect Dt Sundry # Form Rcvd Type of Work Comments Sub Rpt Req Rpt Req Date 3/15/1968 Well Permit Approved 3/15/1968 Permit Issued 5/3/1968 Well Spudded 11/17/1968 Well Completed 4/19/] 999 Well Plugged and Abandoned Alternate API Well Numbers Well Comments Date / Time User Comment Directional Survey Data Thursday, December 07, 2006 Page 2 of 3 11:18 AM , ~ ~ _J Water Salinities in shallow sands in the vicinity of the Sak River and North Shore Exploration Wells Brooks Range Petroleum Corporation Dec. 21, 2006 At the request of the AOGCC, BRP has undertaken an evaluation of wells with appropriate logs to estimate water salinities in shallow sand intervals near exploration wells which will be drilled by us in 2007. This analysis uses the so-called `Rwa Method' to estimate water salinities. Techniques using wireline logs are described and illustrated in "Survey of Methods to Determine Total Dissolved Solids Concentrations", a document produced by the U.S. Environmental Protection Agency in 1989. We used the Resistivity-Porosity technique, where measured resistivities and porosities are used in the Archie equations to derive Total Dissolved Solids concentrations in individual sands. Three wells in the vicinity of BRP's planned wells were chosen: Mobil Gwydyr Bay St. Unit, Mobil Gwydyr Bay South, and Arco Kup River St. #1 (figure 1). These wells are close to our wells and have suitable suites of wireline logs for the analysis. We chose clean sands in the Ugnu and Colville Group that are found near the base of the permafrost at depths of 2700' to 3900' subsea (figure 2). The results of the analyses are shown in Table I. Four cases were calculated for each sand; inputs to the Archie equation were varied. We used the standard Humble and Tixier equations and calculated TDS concentrations which are, in some cases, implausibly high (e.g. the Colville sand in Gwydyr Bay South). Because the shallow sands are known from core to be partially to completely unconsolidated, we used an M of 1.5, and combined this with two `a' values, 0.81 from Tixier and a more standard value of 1.0. Results are highlighted in green and yellow. We believe this gives more reliable results. I,~ ~~•~~6 The Colville Group sands range from 11,500~ to 30,000 ppm TDS; the Ugnu sand gives 10,000 to 26,000 ppm TDS. These are brackish to marine waters, based on the calculated salinities. w~~~,~~~~~~J . ~o?-D~ S KONOWYAK RIVER-ST ~ OWYDYR BA ST A 1 SAK OWYAK RJVFR-i ~i / r` r i (~WY Y N!T ~ i OWYDYR BA ST t~ 4 KUP DE 9-! i, 1 R ~ I r ~ rth Sh BA OUT ~ I ';' ~ i '~ KUPDFL7A~VAU HN 9 ~ '`\ ~ ~~ II ~ r~ - -- ~-~NEST TORKFRSEN 9 ~ "'Y i~ i K RI 1 ~ ~ B.R.P.C.12/26/ 06 J ~ ~ Figure 1: Wells analyzed in this study. zso~ z n Offset: 0 5000 1 15~0 20000 25000 26012 GYVYDYR BAY ST UIiIT 1 1 ., c;, KUP RN ST 1 1 :' ~ . . : ~ ~ 8 ~' ~ ; • ~ , .~ { ; ~ „ __...._~. ___._ _ ..~~.__...,. ..~ -~ .~ o ~_, ; •-- - - R ~~ p ~ 0 ~f J - - _. _ _ ;__ _ ... ' . ___ ~, Iv__......__._....,~__.....~________'___ C41vdL= ~'"'~' ~ ----------- ~, ~ . ,. . a ~ol~ille Sand , '~ ° ' ~ ~ , - ~~ . ~ <, ~ ~ A~, g ~ : , r x . _ __.. . u , ~~ ' ,~ _.'--... _.._..._. . . . . . . . ... .._ ~ • ~ .i u ~ ~ ;~ . ~ o • ~ . ~.; ~ •y ~' ~ ~ ~ .. . u .. 1~ T rI -__ _._ ,..__._._ _._. , -_..,__ . u i ~ -li' ~~~t . g ....._... . . _ ~ " ri u ~ ~~~~ ,, ' . . ~- , ~ .'!• , y . ` ,~ _ ~ ~ i _ ._ '_. <, , ~ ~ ., ~ ~13.375 ~ ~ ; , -~. ~ i ~ ------- R _ . .., ~~ -. ----~ ~ : ~ . , ~ ..o - 4 .~ . .~, ~ ~. ~ ;~ , ~ ., ~ . , m ~ ~ ~ ~ _ _ ; , , ~ a ~ _ __ _ .~ o ~ ~ 'F . . . ~ .. ,~: ~~ !1 n . `i ' ° ~ .. . j ` ~ ~ O -. t i 1 ~ ~ O ..... •_... ~ ~ Col~ille Sand ~ ~ ~ ~ t _ 4 ~ ' r_ o -,- , - ~ ~ .~.. : s . _ __.___._ __ _ __ ,~- ~ , . . . ~" •- ,~ _ ~ ~, . ~~. <~ 8 ~ ; ~n ~ ~ , L~ "' , I ° r. ; c - . k ~ ~ ~: ~ : ,, Q . ~ g g __ _ , _ _ .-- -- } p, u ~ : ~~ V . ~ ~ ~! 7 ~ ~ ~ ~' " , ~~ - ~ ~~ o . . . . ~~ . _._ .. o ~ ' ~' ~. $ ~, g . . . ..... _._. . ~'.. ~ : ' r .._.._.... .. .~ ~~ - .. . ~ ~ - ' s ~ . .. ~ ~ „ ~ e~ ~ ~ . , 1, ~ ~' ~ $ 'i 3~ ~ ' r ` F ~ " ~~ . h _ i_'__ ...... ~ ~ $ ~,, ~ ~ s ~ ~ . ,_ . . ~ . ~ ~ _ , . ., . . ~. a ~ : , i~ ~: ~ - . ~ ~ o - _ ---_ ._ r . u ~ i : _....... „---- -~- ~ r ~ ~~ u~------ ---- ' ;. - -- .,. .... ,~ - ' ~~-- - --- - ,~ ; - - -- r- ~~~,~ c _ _ ~ ~ ~, t ~ o '. •_.. _ ' _' , ~ 1 ~ ^ € o ' ~, ~' `~' .~ ~ ~ l ~ . : -. ~ = Y ._.. . ~~~'. _. . $. _' _ ~ ~ ~ g ~~ ~ Ugnu C Sand ~ ~ ~ ~ ~ ~ ~ o ~__.' . . . . i; u ~ ~ . r A f; ± , ~, ~ ~ r •, -s. .~ ~r ~ "~ ~ u ~} ~~ ~ ~~~ ~ ~ L± i ~ ~ . . . _ _ ~... ------~~ . . ~~ , _ 7 } ~ i Figure 2: Examples of shailow sands evaluated for this study. Well De th Form. bit size Phi a m F calc Ro Rw T f TDS m Gwydyr BS Unit -3521 Ugnu C 12.25 0.35 0.6 2.15 Humble 5.92 2.0 0.34 85 16,000 0.35 0.8 2 Tixier 6.61 2.0 0.30 85 19,000 0.35 0.8 1.5 Soft Rx 3.91 2.0 0.51 85 10,000 0.35 1 1.5 Soft Rx 4.83 2.0 0.41 85 13,000 Gwydyr Bay So. ~-3855 Ugnu C Kup R. St. #1 ~-3850 Ugnu C Gwydyr BS Unit ~-2895 Colv. Grp Gwydyr Bay So. ~-3225 Colv. Grp -2893 Colv. Grp Kup R. St. #1 ~-2675 Colv. Grp B.R.P.C. 12/26/2 12.25 0.32 0.6 2.15 Humble 0.32 0.8 2 Tixier 0.32 0.8 1.5 Soft Rx 0.32 1 1.5 Soft Rx 12.25 0.4 0.6 2.15 Humble 0.4 0.8 2 Tixier 0.4 0.8 1.5 Soft Rx 0.4 1 1.5 Soft Rx 0.35 0.6 2.15 Humble 0.35 2 Tixier 0.35 0.8 1.5 Soft Rx 0.35 1 1.5 Soft Rx 0.3 0.6 2.15 Humble 0.3 0.8 2 Tixier 0.3 0.8 1.5 Soft Rx 0.3 1 1.5 Soft Rx 0.3 0.6 2.15 Humble 0.3 0.8 2 Tixier 0.3 0.8 1.5 Soft Rx 0.3 1 1.5 Soft Rx 0.37 0.6 2.15 Humble 0.37 0.8 2 Tixier 0.37 0.8 1.5 Soft Rx 006 0.37 1 1.5 Soft Rx 7.18 7.91 4.47 5.52 4.45 5.06 3.20 3.95 1.1 1.1 1.1 1.1 1.4 1.4 1.4 1.4 0.15 0.14 0.25 0.20 0.31 0.28 0.44 0.35 90 90 90 90 90 90 90 90 36,000 40,000 22,000 26,000 17,000 20,000 11, 500 14,000 5.92 2.0 0.34 75 13,000 6.61 2.0 0.30 18,000 3.91 2.0 0.51 75 11,500 4.83 2.0 0.41 75 14,000 8.25 1.2 0.15 80 42,000 9.00 1.2 0.13 80 42,000 4.93 1.2 0.24 80 26,000 6.09 1.2 0.20 80 30,000 8.25 1.5 0.18 75 46,000 9.00 1.5 0.17 75 48,000 4.93 1.5 0.30 75 20,000 6.09 1.5 0.25 75 26,000 5.26 1.0 0.19 75 36,000 5.92 1.0 0.17 75 38,000 3.60 1.0 0.28 75 23,000 4.44 1.0 0.23 75 28,000 ~ • ~ Figure 3: Calculated results. r~Enno L~~2`C~ ~? ~~~ir~ /~1~l~m; ~ OK `.. ii'0032~~i~' 0,~25~00934ia710C 3241 L~J u ~ ~ ~~ ~ROOKS R~6NGE PETROLEUM CORP NORTHRIM BANK tA00 W BENSON BLVD ANCHORAGE, AK 99503 SUITE #510 89-93-1252 ~~~-~ ANCHORAGE, AK 99503 / ~ i TRANSMITTAL LET'TER C~IECKLIST WELL NAME ~'''A~,~j:~ ~j PTn# a?a6 - ,I~ r? Development Ser-vice ~ Exploratory Stratigraphic ~'est Non-Conventional Well Z Circle Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ~ ADD-ONS w'HAT (OPTIONS) APPLIES I TEX~I' FOR APPROVAL LETTER i~tULTI LATERAL ~ The permit is for a new wellbore segment of existin~ ~ we(I (If last two digits «; Permit No. , API No. 50- API number are ; - - between 60-69) j Production shouId continue to be reported as a function of the I original API number stated above. ~ ~ PILOT HOLE ; in accordance with 20 :4r1C 25.00~(~, all records, data and lo;s j i ~ ~ acquired for the pilot hole must be clearly differentiated in both ~ i ' i we(I name ( PH) and API number I ; ; (50- - { -_) from records, data and lo~s ' I acquired for well i I : ) I i SPACING ~ The permit is approved subject to fulI comp(iance with 20 AAC ~ ; ' EXCEPTION I 2~.0>j, Approval to perforate and produce / inject is contingent i ! ~ ; upon issuance of a conservation order approving a spacing j ~ I ~ exception. assumes the ~ ~ i liability of any protest to the spacing exception that may occur. I ~ DRY DITCH ~ Ali dry ditch samp(e sets submitted to the Commission must be in ~ i / i SAMPLE I no greater than 30' sample intervals from be(ow the permafrost or ,' ' I I from where samples are first caught and 10' samp(e intervals ~ ; ~ ~ ' j through taroet zones. i , i ~ Please note the following special condition of this permit: Non-Conventional i production or production testing of coal bed methane is not allowed W'zll ~ for ~name of well~ until after (Companv Name) has designed and ' implemented a water well testing program to provide base(ine data ; on water quality and quantity. ~Company Name) must contact the ~ Commission to obtain advance approval of such water we(1 testing Rev: l i2~/06 C:`jodyltransmittaf check(ist ~ ~ J ': ~ ~ ; ; ~~ m o a~ o- , , , , ~~ , , ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ , a~ o , ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ , , ~ , ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ , =y c ~i Q , ~ ~ ~ ~ , ~ , ~ , ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ , ~ ~ ~ ~ , ~, ~~ , , , ~ ~ , , o , i , , : ~ , , i , ~ ! ~ ~ ~ ~ ~ ~ ~ ~~ , . ~ ~ , , ~ , ~ ~ ~ ~ ~ ~ ~ 3' ~ , , , , ~ , , ~ ~ , ~ ~ ~ ~ ~ c i p ~ ~ ~ ~ ~ ~ , ~ a~ ~ , ~ , ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ -o ~ ~ ~ ~ ~ ~ , o , , o , a~ ~' ~ ° ~ ~ ~ ~ ~ ~ ~ ~ ~ , ~ ~ ~ ~ ~ ~ ~ fl. 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N y o I a~ °o m o °~ ~ ~ R ~ ~ I c ~ ~ j ~ ~ ~ O . ~ N ~ ~ L y •` a ~ ~ ` ~ ; N N ' I d - ~ ~. C V C ~ ~ ~ Q ~ , C ~ Q .~ . I ~ `p, f/) C~ '~a a ~ a ¢ ' W ~ Q~ I , ~ aQ ~ Weli History File APPENDIX Information of detailed nature that is not ~ particuta~iy geRnane to the Weii Permitting Process but is part of the history file. To improve the readability of the Wel! History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effori has been made to chronologically . organize this category of information. • Brooks Rarqe Peb+olewn Cotporatiat Brooks Range Petroleum Sak River #1 Final Well Report ~ ~~ ~ SEC 1- T12N - R12E, UM North Slope Borough, Alaska March 16, 2007 - April 04, 2007 Ralph Winkelman John Rustin: Allen Odegaard: James Kvidera: Senior Logging Geologist Senior Logging Geologist Senior Logging Geologist Logging Geologist ~ ~ ~%/~ ~ ~ ~~ :~~ .,~' .~,.,'~' ~~ EP~CH ~.o~ - ~~~~ ~ s~ qg ~~~~ Sak River #1 ~ TABLE OF CONTENTS 1 MUDLOGGING EQUIPMENT AND CREW ...................................................................................... 2 1.1. EQU/PMENT SUMMARY ............................................................................................... ..2 ~.2. PERSONIVEL .................................................................................................................. ..2 2. GENERA~ WELL DETAILS ............................................................................................... ........... 3 2.9. WE~L RESUME ...........................................................~.................................................. ..4 2.2. NQLE DATA .................................................................................................................... ..4 3. GEOLOGECAL DATA ......................................................................................................... ........... 5 3_ 9. L/THOLOGY REVIEW .................................................................................................... ..5 3.2. CORE DESCRIPTIONS ................................................................................................. 32 3.3. SHOW REPORTS .......................................................................................................... 32 3.4. SAMPLING PROGRf4M,4N1> DISTRIBUTION .............................................................. 32 4. DRILLING DATA ................................................................................................................ ......... 33 4.1_ DAILYACTIV/TYSUMMARY ..........................~................................--•--------........--•-----... 33 4.2. SURYEY RECOtZD ........................................................................................................ 34 4.3. 1t~UD RECORD ............................................................................................................... 38 • 4.4. B/T RECOR~ .................................................................................................................. 39 4.5. DRILLIl11G PROGRESS CH~4RT .................................................................................... 40 Enciosures 2"=100' Scale ~ormation Log 2"=100' Scale LWD Camba ~og 2"=10Q' Scale Drilling Dynamics Log ~ ~~ EPOCH ' ~~~ Sak River #1 i 1 MUDLOGCING EQUIPMENT A(dD CREW 1_1. EQUiPMENT SUMMARY . Parameter Equipment Type And Positian TO~~ Downt~me Comments Ditch Gas QGM Trap Mounted In Possum Befty; F!D Total Hydracarbon Analyzer And Chramata ra h 0 Rate af Penetration {ROP) ~rimary Draw works Shaft Encoder On Drum Shaft ~ Pump stroke counter ~nterna(ly Mounted Magnetie Proximity Sensor a Haokload / Weight an bit {W~B) Hydrau(ic P~essure Cel! f3 DrilE string tarque Qigita! Signa! Frarn Top Drive Q Top drive rotary (RPM) Digital Signal From Top Drive 0 Standpipe Pressure Hydraulic Pressure Cel1 ~ Mud flow in I out {MF! I MFQ} ~~~ Derived From SPM / N1F0 From FIQw Paddle ~ Pit volumes Sonic Pit Sensors In Ali Pits And Trip Tank ~ Driller's work station Explosion Proof Touch Screen 0 Casing Pressure Hydrauiic Pressure Celt 0 Company man's work s#ation HP COMPRQ fl Toolpusher's work station HP COMPAQ 0 Geologist's work station HP COMPAQ n!a Pit room work station Explosion Proof Touch Screen Q 9.2. PERSONNEL Unit Number: MLOQ4 Sak River #1 ~ U Mudloggers Years ~xperience Days ~~ weH Sample Ca#chers Days a# well Technician Days at weli Jahn Rustin 12 28 Kevin McMullen 23 Raiph Winkelman 16 15 Paul Iverson 28 James Kvidera 2 4 Allen Odegaat~d 10 4 ~ F;PO~H ~~~~ Sak River #1 ~~ ~ ~ r~ ~J 2. GEIVERAL WELL DETAILS Objec#ives Drill an exploratory we!! in the West Gwydyr Bay Narthshore area for oi! and gas production po#ential and evaiuation. The primary abjective ofi this wildcat well as ihe Sak River Formatian. ~ EPt~CH ~ ~~~~ Sak River #1 ~ I~ _J • ~ 2_1. WELL RESUME Operator: Braoks Range Peteoleurr~ Corporation Well Name: Sak River #9 Field: Expforatory - Gwyder Say Caunty: North Slope Baraugh State: Alaska Company Representatives: Jack Keener Location: 1900' FNL, 1630' ~EL, Sec 9- T92N - R12E, UM Classification: Exploration APt #: 50-029-23336-00 Permit #: 206-'i67 AFE Rig Name / Type: 27E1 ~and #riple Elevation: Ground, RKS 15.53' GL, 36.5' RKB, = 52.0' AMSL Primary Targets: Sak River Farmatian Secondary Target: tvishak Spud Date: 3t1612007 Total Depth 13,11 Q' {mdj 11348.96' {tvd} Tataf Depth Formation: 13,110' Tata! Depth Date: 4l~~~~ MW~ Company: I Too4s Run: Sperry Sun Directional Drilling: Sperry Sun Drilling Fluids Company: M-I Drilling Fluids Cement Company: SchlumbergerlDowell 2.2. H~LE DATA Sak River #9 Hole Maacimum Depth T.D ~~d Deviation Shoe Depth F.l.T. Section ~p ~~-~p . Formation W~~~~t {°inc} ~a$~~~ MD SSND EMW 12 1/4" 4,036' 3,424.4' 4,036' 9.6 89.1 9 518" 402Q' 3411.9' 12.6 8.75" 13,110' 11, 348.96` 13,110' 1 Q.6 14.69 ~ EPC)~H ~~~^~«~«~^ Sak River #1 ~ 3. GEt)LOGICAL DATA 3=1. LITHOLOGY REVIEW CONGLOMERATE SAND {345' - 4~?0'j = MEDtUM TO DARK GRAY, MEDIUM LIGHT GRAY, SMQKY, CLEAR, TRANSLUCENT; CLAST SIZE RANGES FROM C~ARSE GRAINS TO PEBBLE SIZE GRAINS; PO~R SORTING; SUB-R~UNDEt~, SUSANGULAR, ANGULAR; ~~W TD MODERATELY HIGH SPHERiCITY; S~ME LOW IMPAC~T ANd FROSTED SURFACES FEATURES; TRAGES OF CHERT. CONGIOMERATE! CONGLOMERATtC SAND { 400'-480`} = MEDIUM TO DARK GRAY OVERALL WITN A MODERATE °SA~T ANQ PEPPER° APPEARANCE, 4NDiV1DUAL LtTH1CS DOMINANTLY MEDIUM T~ DARK GRAY, 81AC1~, CLEAR TO FROSTED QUARTZ; WHITE AND G~2EENISH GRAY; MEDIUM LOWER TO VERY COAFtSE UPPER T(~ PEBBLES OF 1' ; DOMINANTLY GOARSE TQ VERY COARSE; POORLY SORTED WITH TRACE CEMENTED SANDSTONE; VARICOLORED GRAINS; FRIABLE; MED{UM TO COARSE; GRAlN SUPPOF2TED; NON ~ALCAREOUS; TRACE PYRITE NODULES; TRACE DAF2K BROWN, FIBROUS, WOODY MATERtAI. SAND! CONGLOMERATIC SAND { 480' - 550`}= MEDIUIlA T~ DARK GRAY OVERALL WITH ABUNDANT VARICOLORED LITHS; MEDiUM LCIWER TO VERY COARSE UPPER WlTH ABUNDRNT 3t4" PEBBLES, DOMINANTLY C0~4RSE GRAIN; ANGULAR Ta SUSANGUL.AR; POORLY SORTED; UNCONSOLIDATED; TRACE BR~WN, FtBROUS WOODY MATERIAL; TRACE FYRlTE NODULES. CLAY (510 - 590} = LIGHT GRAY, MEDIUM LIGHT GRAY, LIGHT GRAY-BROWN; VERY SOFT, VERY STlCKY; GLOBULAR CUTTlNG HABlT; EARTHY LUSTER; CLAYEY, GRITTY, SlLTY TEXTURE; CHLOROCALCITIC; VERY SOLU~~E TO MODERATELY SOLUBLE; EXPANSIVE WHEN HYDRATEd; NON CALCAREOUS. ~ SANDJCONGL(JMERATIC SAND { 600' - 650'} = MEDEUM GRAY, MEDIUM DARK GRAY, DARK GRAY, CLEAR-WHlTE, SOME BElNG TRANSLUCENT; LOWER MED(UM GRAIN TO UPPER VERY GOARSE GRAiN, PESBLE SIZE GRAIN; POORLY SORTED; ANGULAR, SUBANGULAR; MODERATE HIGH TO LOW SPHERiCITY; 1MPACT AND FROSTE^ SURFACE FEATURES. CLAY {640 - 690} = LlGHT GR~4Y, MEDIUM LIGHT GRAY, LIGHT GRAY-SROWN; VERY SOFT, SOFT, VERY STtCKY AND PASTl'; GLOE3U~AR CUTTINGS HABIT; EARTHY LUSTER; CLAYEY, GRITTY AND SILTY TEXTURE; CHL4RO~ALCITIC VERY SOLUBLE TO Mt7DERATELY SOLUBLE; EXPANSIVE WHEN HY~RATEd; N~N GALCAREOUS. SAtdDlCOldGLOMERATiC SAND (680' - 730') = MEDlUM GRAY, MEDlUM DARK GRAY, DARK GRAY, CLEAR-WHlTE, SOME TRANSLUCENT; LOWER MEQIUM GRAIN T~ UPPER VEFtY COARSE GRAIN, PEBB~E AND UPPER PEBBLE SI~E GRAINS; POORLY SORTED; ANGUTAR, SUBANGULAR; MODERATELY HtGH TO LOW SPHERtCITY; IMPACT AND FROSTED SURFACE FEATURES. CLAY (720` - 785') = LIGHT GRAY, MEDIUM LIGHT GRAY, LiGHT GRAY-SROWN; VERY SOFT, SOFT, VERY STiCKY AND PASTlr'; GLOBULAR CUTflNGS HABiT; EARTHY LUSTER; CLAYEY, GRITTY AND SILTY TEXTURE; St_IGHTLY CHLOROGALCITIC; VERY SOLUBLE TO MODERATE~Y SO~UB~E; EXPANSIVE WHEN HXORATED; NON CA~CAREUUS. SANDICONGLOMERATIC SAND {785' - 830'j = MEDIUM GRAY, MEDIUM DARK GRAY, DARK GRAY, CLEAR-WHITE, SOME TRANSLUGENT, WITH TRACES 4F GREENISH GRAY; LaWER ME~lUM GRAlN TO COARSE GRA1N AND SOME PEBBLE AND UPPER PEBBLE GRAINS. POORLY SORTED; ANGULAR, SUBANGULAR WITH SOME SUB-ROUNDED IN PEBBLES; MODERATELY HIGH TO LOW SPHERICITY; SOME WITH iMPACT AND FROSTED SURFACES FEATURES. ~ ~~ EP4CH ~ ~~~~ SakRiver#1 ~ SANDIC4NGLOMERATIC SAND (83Q` - 890') = MEDfUM GRAY, MEDiUM DARK GRAY, DARK GRAY, CLEAR-WHITE, SOME TRANSLUCENT, WITH TRACES OF GREENISH GRAY, SOME GRAINS BEING CHLORITIC; LOWER MEDIUM GRAIN TO COARSE GRAIN AND TRACES O~ PEBBLE AND UFPER PEBBLE GRAIhIS, FOOR SORTING; ANGULRR, SUBANGULAR WITH SQME SUB-ROUNDED PEBBLES; MODERATELY HiGH TO LOW SPHER1CiTY; SOME WlTH 1~PACT AfdD FROSTED FEATURES; TRACES OF SHELL FRAGMENTS IN CUTTlNGS. SAND/C~NGLOMERATIC SAND { 90d' - 950'} = LIGHT GRAY, CLEAR-WHITE, TRANSLUCENT, MEDIUM GRAY, MEDIUM ~ARK GRAY, WtTH TRACES 4F GREENiSH GRAY; LOWER MEDttTM GRAlN TO UPPER COARSE GRAIN; SUBANGULAR ANGULAR; MODERATE TO LOW SPHERICITY; FAIR TO SMALL AMDUNT OF SURFACE ABRASIONS; CONTINUlNG TO SEE TRACE AMOUNTS OF SHELL FRAGMENTS AND SMALL AMQUNTS OF PYRITE SCATTERED IN CUTTINGS SAMPLE. CLAY (970' -1Q20') = LIGHT GRAY, MEDiUM LIGHT GRAY, LIGHT GRAY-BROWN; VERY SOFT, SOFT, VERY STICKY AND RASTY; MUSITY TENACITY; GLOBULAR CUTTINGS HABIT; GRITTY AND SI~TY TEXTURE; PREDOMtNANT~Y VERY SOLUBIE WITH SOME BEING VERY TO MODERATE~Y SOLUBIE; EXPANStVE WHEN HYDRATED; NQN CAICARE~US. SANDIGONGLOMERATIC SAND (1020`-1070'} = LIGHT GRAY, CLEAR-VtIHITE, TRANS~UCENT, MEDIUM GRAY, MEDiUM DARK GRAY, WITH TRACES flF GREENlSH GRAY; LOWER MEDiUM GRAlN TO VERY COARSE GRA1N; SUBANGULAR ANGULAR; MOQERATE TO L{3W SPHERICiTY; FAIR TO SMALL AMOUNT OF SUR~ACE ABRAtSIQNS; NOW SEEtNG AND {NCREASE IN AMOUNTS QF SHELL FRAGMENTS AND AlSO S~IGHTLY MORE PYRITE; HEA1lY AMOUNTS OF WOOD UP TO 1 3/4 INCHES LQNG. CIAY (1080'-192(3') = LlGHT GRAY, MEDIUM LlGNT GRAY, LIGHT GRAY-SFtOWN; VERY SOFT, ~ SOFT, VERY STiCKY AND PASTY; MUSITY TENACETY; GLOBULAR CUTTENGS HABIT; GRfTTY AND SILTY TEXTURE; PREDOMINANTtY VERY SOLUBLE WiTH SOME SEING MODERATELY SOLUBLE; EXPANSIVE WHEN HYDRATED; NON CALCAREOUS. SAND/CONGLOMERATIC SAND (1Q30'-1090') = L1GHT GRAY, CLEAR-WMTE, TRANSLUCENT, MEDIUM GRAY, MEDIUM QARK GRAY, WITH TRACES OF GREENISH GRAY; LOWER MEDiUNI GRAtN TO UPPER COARSE GRRIN; SUBANGULAR ANGU~.AR; MODERATE TO LOW SPHERICITY; FAIR TQ SMALL AMOUNT OF SURFACE ABRASiONS; CONTINUING TO SEE TRACE AM~UNTS OF SHELL FRAGMENTS AND SMALL AMOUNTS OF PYRlTE SCATTERED (N GUTTINGS SAMPLE ALCING WITH SOME WOOD FIBERS. CLAY (119Q' -1230'j = LlGHT GRAY, VERY LlGHT GRAY, MEDlUM LiGHT GRAY, LIGHT GRAY- BROWN; VERY SOFT, SLIGHTLY STfCKY; UNDETERMlNABLE CUTTlNG HABlT; GRITTY AND SILTY TEXTURE; PREDOMINANTLY VERY SOLUBLE; rvaN Ca~G~R~ous. SANDICONGLOMERATIC SAND (123Q'-1270`) = LIGHT GRAY, C~EAR-WHITE, TRANS~UGENT, MEDIUM GRAY, MEDIUM DARK GRAY, BLACK, WlTH TRACES OF ~REENISH GRAY; Lt?WER MEDIUM GRAlN TO UPPER COARSE GRA1N; ANGUTAR, SUBANGULAR; LOW TO MODERATE SPHERICtTY; SMALL AMOUNT OF SURFACE ABRASIONS AND SOME FROSTING, STILL SEEiNG TRACES OF SHELL FRAGMENTS AND SMALL AMOUNTS OF SCATTERED PYR3TE. SANDICONGLQMERATIC SAND {'l27Q'-132Q') = CIEAR-WNITE, LIGNT GRAY, TRANSLUCENT, MEDIUM GRAY, MEDIUM DARK GRAY, BLACK; LOWER MEDIUM GRAIN TO UPPER COARSE GRAiN; ANGULAR, SUBANGULAR; LOW TO MODERATE SPHERITICY; SMALL AMOUNT OF SURFACE ASRASI~N AND SOME FROSTING; ONLY SLlGHT TRACES OF SHELL FRAGMENT AND SCRTTERED PYRITE IN CUTTINGS. ~ ~ EP(~CH ~ ~~~^~^ Sak River #1 ~ CLAY (1300' - 4410') = LIGHT TO MEDIUM BROWN TQ BROWNISH GRRY; VERY SOFT; VERY ST4CKY; SHAPELESS, GLOBULAR CUTffNGS; StLTY TO CLAYEY TEXTURE; DULL TO EARTHY LUSTER; ABUNDANT SUSPENDED SANDS !N CLAY; VERY SOLUBLE; VERY EXPANSIVE WHEN HYDRATED; HYDROPHlLlC; P04R COHESIVENESS; FAIR TO GOOD ADHESNENESS; NON CALCAREOUS DaMINANTLY SAN~ FORMATION; TRACE PYRtTE NODULES; (VO HYDROCARBON INDICATORS. SANDI CONGLQMERATIC SAND (1380' -15Q0') = LIGHT TO MEDIUM GRAY T~ GRAYiSH BROWN OVE~2ALL WSTH 1ND1VlDUAL GRA3NS ~OMfNANTLY CLEAR TO TRANSLUCENT QUARTZ, FROSTED WHITE, LtGHT TO MEDIUM GRAY TO GREENESH GRAY AND BLACK UTHICS, TRACE BLUlSH GREEN AND PALE ROSE; FINE UPPER TO COARSE UPPER, DOMINANTLY MEDIUM; ANGULAR TC} SUBANGULAR; M~DERATE~Y WELL SORTED; QOMINANTLY UNCONSOLIDATE~, TRAGE NON CALCAREOUS GRAIN SUPPORTED FRAGMENTS; VERY FRAGlLE; TRACE PYRlTE NODULES; DECR~ASING VERY COARSE l.ITHICS AND CLAY CQNTENT; NQ HYDROCARBOIV iNDtCATQRS PRESENT. C~AY {1420' -1524`) = LIGHT TO MEDIUM GRAY TO BROWNISH GRAY; VERY SC)FT; VERY STICKY; SHAPELESS, GLOBUlAR CUTTtNGS; SILTY TQ CLAYEY TEXTURE; DULL TQ EARTHY LUSTER; ABUNDA~iT SUSPENDED SANDS iN CLAY VERY SOLUSLE; VERY EXPANSIVE WHEN HYDRATED; HYDROPHlLIC; PDOR COHESIVENESS; FAIR TO G~OD ADHESIVENESS; NON CALCAREOUS DOMINANTLY SAND FORMATION; TRACE PYRITE NODULES; NQ NYDROCAR80N 4NDICAT4R5. SAND {1500-1580'} = LIGHT TO MEDIUM GFtAY WITN A M(~DERATE "SALT ANQ PEPPER" OVERAL~ APPEARANCE, MODERATE INCREASE iN DAF2KER LiTH1CS; iNDtVIDUAL GRAINS DOMINANT CLEAR, TRANSLUCENT TO FROSTED WHITE, MEDIUM TO DARK GRAY TO BLACK; FlNE UPPER TO VERY COARSE LOWER, DOMINANTLY UPPER NlEDIUM TO COARSE LOWER; ANGULAR TO SUSANGU~AR; MODERATELY WELL SORTE~3 !N MEDIUM TQ COARSE RANGE; ~ UNCONSOLtDATED; TRACE LO~SE PYRETE NODULES; NO HYDROCARBON fNDICATORS PRESENT. SAND { 1580-167Q') = LIGHT TO MEQIUM GRAY WtTH A MOQERATE "SRLT AND PEPPER" OVERALL APPEARANCE, MODERATE 1NCREASE IN DARKER UTHICS; 1NDIVIDUA~ GRAINS DOMINANT CLEAR, TRANSLUCENT TO FROSTED WHiTE, MEQIUM TO DARK GRAY TQ BLACK; FINE UPPER TQ VEFtY COARSE LOWER, ~OMiNANTLY UPPER MEDtUM TO COARSE LOWER; ANGULAR TO SUBANGULAR; MODERATELY WELL SURTED IN MEDIUM Tf3 COARSE RANGE; UNCONSOLl~ATED; TRACE LOQSE PYRITE NC?DULES; TRACE DARK REDDESH BRQWN, FiBROUS, WODDY MATERIAL IN 1610' & 164~' SAMPLE; NO SAMPLE FLUORESCENCE; NO HYDRt}CARBON INDtCATORS. CLAY {1664' -1760') = LlGHT TO MEQIUM GRAY TO SROWNlSH GRAY; VERY SOFT; VERY STICKY; SHAPELESS, GLOBULAR CUTTlNGS; SILTY TQ CLAYEY TEXTURE; DULL TO EARTHY LUSTER; ABUNDANT SUSPENDED SANDS iN CLAY VERY SO~UBLE; VERY EXPANSlVE WHEN HYDRATED; HYDROPHILIG; POQR COHEStVENESS; FAlR TO GOO~ ADHESIVENESS; NON GALCAREOUS DQMINANTLY SAND F~RMATl4N; TRACE PYRITE NODULES; TRACE REDDISN BROWN, FlBR~US, V~/~QDY MATERIAL; NO SAMPLE FLUORESCENCE; NO HYDROCARBON lNDICATORS PRESENT. SAND { 1700-1790`) = LtGHT T~ MEDIUM GRAY OVERALL, INDEVI~UAL GRAINS D4MINANT CLEAR, TRANSIUCENT TO FROSTED WHITE, MEDlUM TO DARK GRAY TC? BLACK; FlNE UPPER TO VERY CUARSE LOWER, DOMINANTLY UPPER MEDiUM TO COARSE ~OWER; ANGULAR TO SUBANGULAR; MODERATELY WELL SQRTED IN ME~IUM TO COARSE RANGE; UNCONSOLIDATED; TRACE LOOSE PYRITE NODULES; NO SAMPLE FLUORESCENCE; NO HYDROCRRBON INDtCATORS. CJ ~ EPOCH ' ~ ~ ~^ ~^ Sak River #1 ~ CLAY { 1760' -18$0'} = LIGHT GRAY TO L1GHT GRAYISH BROWN WITH ~iGHT BROWN SECONDARY HUES; VERY SOFT; MO~ERATELY STICKY; AMORPHOUS, GLOBULAR, SHAPELESS CUTTINGS; S1LTY TO CLAYEY TEXTURE; DULL TO EARTHY IUSTER; SLIMY TO PASTY; VERY SOLUSLE; SLlGHT TO MODERATELY EXPANSIVE WHEN HYDRATED; POOR COHESIVENESS; POOR TO FAIR AQHESIVENESS; NON CALCAREOUS; PRESENT !N MIN~R AM~UNTS IN DOMiNANTLY SAND fOR~t1ATiON; C4NTiNUED TRACE DARK REDDiSH BROWN, FiBROUS, WOODY MATERIAL; NO SAMPLE FLUORESCENCE; NO HYDROCARBON 1N~tCATORS PRESENT. SAND { 181 Q-196d"} = L1GHT TO MEDlUM GRAY WITH A MO~ERATE "SALT AND PEPPER" QVERALL APPEARANCE, MODERATE INGREASE iN ~ARKER LITH(CS; tNDtViQUA[. GRAINS DOMINANTLY CLEAR, TRANSLUCENT TO FROSTED WHITE, MEDlUM TO DARK GRAY TO BLACK; FINE UPPER TO VERY COARSE LOWER, D~MtNANT~Y UPPER MEDIUM TO COARSE LOWER; A(VGULAR T~ SUBANGULAR; MODERATELY WELL S4RTED 1N MEDIUM TQ COARSE RANGE; UNCONSOLIDATED; TRACE LOOSE PYRITE NODU~ES; TRACE DARK REDDISH BROWN, FiBROUS, WaOaY MATERfAL IN 1824' SAMPLE; TRACE VERY COARSE UPPER LiTHiCS, VARICO~ORED; SUB-AIVGULAR TO SUB-ROUNDED; NO SAMPLE FLUORESCENCE; NO HYDROCARSON tNDICATORS PRESENT. CLAY/ S1L~'STONE ( 193fl' - 2040') = LIGHT GRAYiSH BROWN WITH VERY LIGHT BROWN SEC4NDARY HUEB; VERY SOFT; MODERATELY STICKY; AM~RPHOUS, G~OBULAR, SHAPELESS CUTTlNGS; SILTY TO CLAYEY TEXTURE; DU~.L ~"O EARTHY ZUSTER; SLlMY ~O PRSTY; VERY SOLUB~E; SLIGHT TO MODERATELY EXPANSIVE WHEN HYDRATED; PO~R COHESIVENESS; POOR TO FAIR AQHESNENESS; NON CALCAREOUS; PRESENT IN MINOR AMOUNTS IN DOMINANTLY SAND FORMATiON; CONTlNUED TRACE PYRITE NODULES; NO SAMPLE F~UORESCENCE; NO HYDROCARBON 1NDICATORS PRESENT. SAND { 19$0- 2090'} = LIGHT TO MEDIUM GRAY OVERALL, lNDIVlDUAL GRAINS DOMiNANT ~ CLEAR, TRANSLUCENT TO FROSTED WHITE, MEDlUM TO DARK GRAY TO BLACK; FtNE UPPER TO COARSE UPPER, DOMINANTI.Y MEDIUM UPPER TO COARSE LOWER; ANGULAR TO SUBANGULAR; MODERATELY WELL TO WELL SORTED; UNCaNSC3LfDATED; TRACE PYRITE; NO SAMPLE FLUORESCENCE; NO HYDROCARBONS SAND/ CONGLOMERATIC SAND (2(}~4Q' -214Q'} = LIGHT TO MEQiUM GRAY T4 GRAYISH BROWN 4VERALL WlTH INDlVIDUAL GRAlNS DOMINANTLY C~EAR TO TRANSLUCENT QUARTZ, FROSTED WHITE, LIGHT T4 MEDIUM GRAY TO GREENISH GRAY AND BLACK LITHS, TRACE BLUISH GREEN AND PAIE ROSE; ~INE UPPER TQ COARSE UPPER, DOMlNANTLY MEDIUM; ANGULAR Ta SUBANGULP+R; MODERATE~Y WELL SORTEO; ~OMINANTLY UNCONSOLIDATED; TRACE LQOSE PYRITE NODULES; NdN CALCAREOUS; NO S~MP~.E FLUORESCENCE; NO HYDRQCARBON INDICATORS. CLAY (2110' - 22Q0'} = LIGHT GRAY TO LIGHT GRAYISH BROWN WITH LIGHT BRQWN SECONDARY HUES; VERY S~FT; MODERATELY STICKY; AMORPHOUS, GLOBULAR, SHAPELESS CUTT'[NGS; SILTY TO CLAYEY TEXTURE; DULL TO EARTHY ~USTER; SLIMY T~ PASTY; VERY SOLUBLE; EASlLY DlSSOLVING INTO MUD SYSTEM RESULTING !N VERY POOR SAMPLE QUALITY; VERY POOR RETURNS COMING SACK; VERY L~W VOLUME CQMING ACR~SS SHAKERS STfiRTiNG AT 2180' SAMPLE AND CONTiNUlNG THRU 2240' S,4MPLE. SAND ( 2180- 2260') = LIGHT TO MEDIUM GRAY OVERALt, tN~NfDtlAL GRAINS QQMINANT CLEAR, TRANSLUCENT TO FROSTED WHtTE, MEDlUM TQ DARK GRAY TO BlACK; FINE UPPER TO COARSE UPPER, DOMINANTLY MEDIUM UPPER TO COARSE LOWER; ANGULAR TO SUBANGULAR; MQDERATELY WELL TO WELL SC?RTE[}; UNCONSOLi~ATEQ; TRAGE PYR[TE; TRACE LARGE PEBBLES 18MM iN 2240' SAMPLE; NON CALCAREOUS; NC? SAMPLE FLUORESCENCE; NO HYDROCARBON 1NDiCATORS. ~ U ~ E~ocH 8 ~*~~~~ Sak River #1 ~ SAND (2240' - 233fl') = LIGHT GRAY OVERALL WITH INDMDUAL GRAINS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, FROSTED WHITE, LESSER AMOUNTS OF LIGHT TO MEDIUM TO DARK GRAY TO BLACK, TRACE DARK RED AND PALE ROSE LlTHIGS; FlNE LOWER TO MEDIUM UPPER AND TRACE VERY COARSE LITHICS; WELL TO VERY WELL SQRTED; ANGULAR TO SUBANGULAR; UNCONSOLIDATED; TRACE PYRITE; NON CALCAREOUS, NO SAMPLE FLUC}RESCENCE; NO HYDROCARBUN 1NDiCATORS. CLRYI SILTST~NE (2300' - 2380") = LIGHT GRAYlSH BROWN WITH VERY LIGHT BROWN SECONDARY HUES; VERY SOFT; MODERATELY STICKY, AMC3RPHOUS, GLOBULAR, SHAPELESS CUTTINGS; S{C.TY TO GLAYEY TEX CURE; DULL TO EARTHY LUSTER; SLIMY TO PASTY; VERY SOLUBLE; SLIGHT TO MODERATELY EXPANSIVE WHEN HYDRATED; HYDROPHILIC; POOR CC}HESlVENESS; POOR TO FAER ADHESNENESS; NON GALCAREOUS; PRESENT IN DOMiNANTLY SAND FQRMATION; NO SAMP~E FLU~RESCENGE; NO HYDROCARBQN INDICAT~RS PRESENT. SAND (2400' - 2470') = FROSTED-WHITE, CLEAR, TRANSLUCENT TO TRANSPARENT, LIGHT GRAY, VERY tiGHT GRAY, SMA~LER AMOUNT BEING MEDIUM ~IGHT GRAY, MEDlUM GRAY, DARK GRAY AND BLACK, TRACE REDDISH BROWN LITNlCS; LOWER FINE GRAlN, UPPER FlNE GRAiN, LOWER MEDiUM GRAIN, UPPER MEDIUM GRAIN, WITH OCCASIONAL LOWER COARSE GRAIN; FAtRLY SORTED TO WELL SORTED; ANGULAR TO SUBANGULAR; TRACES E3F SCATTERED PYRITE; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON iNDiCATORS. Ci.AYI SiLTSTONE {2460' - 2~10') = VERY LiGHT GRAY TO LiGHT GRAYISH BROWN WITH LIGHT BROWN HUES; VERY SOFT; fVIODERATELY TO SLIGHTLY STICKY; VERY MUSITY AND PASTY CONSISTENCY; GLOBULAR, SHAPELESS CUTTINGS HABIT; EARTHY LUSTER; ClAYEY, SlLTY TEXTURE; SLiGHTLY TO MODERATELY EXPANSIVE WNEN HYDRATED; SLIGHTLY • CHLOROCALCITiC; NO CUTTINGS FLUE)RESCENCE NO HY~ROCARBON tNDICATORS PRESENT SAND {2520' - 2490') = FROSTED-WHITE, CLEAR, TRANSLUCENT TO TRANSPARENT, LIGHT GRAY, VERY LIGHT GRAY, SMALLER AMOUNT BEING MEQtUM LlGHT GRAY, MEDlUM GRAY, DARK GRAY AND BLACK, TRACE REDDISH SROWN LITHICS; LOWER FINE GRAtN, UPPER FINE GRAIN, LOWER MEDfUM GRAIN, UPPER MEDIUM GRAIN, W[TH 4CCAS4~f~lAL L01~lER Cd1~RSE GRAIN; FAIRLY SORTED TO WELL SORTED; ANGULAR TO SUBANGUL.AR; TRACES OF SCATTERED PYRlTE; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICATORS PRESENT. CLAY/ Si~TSTONE (2590' - 264Q`} = VERY ~IGHT GRAY TO LIGHT GRAYISH BRQVtilN WETH !.lGHT BROWN HUES; VERY SOFT; MODERATELY TO SLIGHTLY STICKY; VERY MtJSITY AND PASTY CQNSlSTENCY; GL~BULAR, SHAPELESS CUTT'INGS HASfT; EARTHY C.USTER; CLAYEY, SILTY TEXTURE; SLIGHTLY TO MQDERATELY EXPANSIVE WHEN HYDRATE~, SL(GHT~Y CH~t?ROCALCITiC; NO CUTTINGS FLUORESCEPICE N{3 HYDROCARBON iNDICATQRS. SAND (2850' - 2710') = CLEAR-WHITE, FROSTED, TRANSLUCENT, LIGHT GRAY, VERY LlGHT GRAY, SMAL~ER PORTlON OF ME[3tUM L4GHT GRAY, M~DIUl1~ GRAY, DARK GRAY AND BLACK, RARELY TRANSPARENT, TRACE REDDISH BROWN AND LIGHT GREEN LfTHICS; LOWER FINE AND UPPER FINE GRAIN, LOWER MEDIUM AND UPPER MEDiUN! GRAIN, WITH INCREASE OF LOWER COARSE GRAIN; FAtRLY SORTED TO WELL SORTED; AN~ULAR TO SUBANCUtAR; TRACES OF SCATfERED PYRlTE; N(JN CALCAREQUS; NO SAMPLE FLUQRESCENCE; NO HYDROCARBON INDICATORS; • ~~ EPOCH g ~~~^~^ Sak River#9 • CLAYt S1lTSTONE {2720' - 2770') = VERY IIGHT GRAY TO VERY LIGHT GRAYiSH BROWN; VERY SOFT; MODERATELY AND SLIGHTLY STtCKY; VERY MUSITY ANQ PASTY CON~ISTENCY; GLOBULAR, SHAPELESS CUTTlNGS HABIT, EARTHY 1.USTER; CLAYEY, SILTY TEXTURE; SLIGHTLY TO MODERATELY EXPANSIVE WHEN HYDRATED; SLIGHTLY HYDROPHIL{C; NO CEJTTtNGS ~LUORESCENCE NO HYDROCARBON 1NDtCATORS; SOME SCATTEREQ PYRITE IN CUTTiNGS SAMPLE SAND {2770' - 285Q') = CLEAR-WH1TE, FR~STED, SMOKY, TRANSLUCENT, MEQtUM LIGHT GRAY, MEDlUM DARK GRAY, LIGHT GRAY, VERY LIGHT GRAY AND SLACK, RARELY TRANSPARENT, SLIGHT TRACES OF REDQISH BROWN AND LtGHT GREEN LITHlCS; LOWER F(NE AND UPPER FINE GRAIN, LOWER MEDIUM AND UPPER MEDIUM GRAIN, LQWER COARSE GRAIN; SORTING IS MC}DERATE TO WELL; ANGULAR TO SUBANGULAR; NON CALCARE~US; NO SAMP~E FLUQRESGENCE; NO HYDROCRRBQN !NQlGATORS; SGATTERED PYRlTE PRESENT !N SAMPLE. SAND (285Q' -291Q'} = FRQSTED, SMOKY, CLEAR-WHiTE, TRANSLUCENT, MEd1UM LIGHT GRAY, MEDIUM DARK GRAY, LlGHT GRAY, VERY LIGHT GRAY AND BLACK, RARELY TRANSPARENT, SLIGHT TRACES OF REDDISH BROWN AND ~IGHT GREEN I,tTHICS; LOWER FINE AND UPPER FINE GRAlN, LOWER MEDlUM AND UPPER MEDtUM GRA(N, IOWER COARSE GRAiN; SORTENG tS MQDERATE TO WELL; ANGULAR TO SUBANGULAR; NON CALCAREOUS; NO SAMP~E FLUORESCENCE; NO HY~ROCARBON INDICATORS; TRACES ~F SCATTERED PYRITE PRESENT IN CUTTlNGS SAMPLE. CLAY/ S{LTSTONE (2920' - 2980'} = VERY LIGHT GRAY TO VERY LlGHT GRAYISH BROWN; VERY SOFT; MODERATELY TO SLIGHTLY STiCKY; VERY MUSITY AND PASTY SOME SLiMY CONSISTENCY; GLOBULAR, SHAPELESS CUTTfNGS HABIT; EARTHY LUSTER; CLAYEY, SILTY, GRiTTY TEXTURE; MODERATELY EXPANSIVE WHEN HYDRATED; SLIGHTLY HYDROPHILIC; NO CUTTINGS ~IUORESCENCE; Nfl HYDROCARBON INDIGATORS; TRACE SCATTERED PYRITE • PRESENT IN SAMPLE SAND (2990' - 3050'} = CIEAR-WHITE, FROSTED, SMOKY, TRANSLUCENT, MEDtUM LIGHT GRAY, L1GHT GRAY, MEDIUM DARK GRAY, VERY LiGHT GRAY AND BLACK, RARELY TRANSPARENT, SIIGHT TRACES OF REDDISH 8RC)WN AND L1GHT GREEN LITHS; LOWER F1NE AND UPPER FINE GRAIN, LOWER MEQ{UM AND UPPER MEDfUM GRAiN, LOWER COARSE GRAIN; SORTING iS MODERATE TQ WELL; ANGULAR TO SUBANGULAR; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICATORS; SLIGHT TRACES ~F SCATfERED PYR{TE PRESENT !N CUTTINGS SAMPLE. CLAYI SiLTSTONE (3060' - 3120'} = VERY LIGHT GRAY TO VERY ~IGHT GRAYISH BROWN; VERY SOFT; MODERATELY TO SLIGHTLY STICKY; VERY MUSITY AND PASTY SOME SLIMY GONSlSTENCY; G~OBULAR, SHAPELESS CUTTlNGS HAS1T; EARTHY LUSTER; CLAYEY, VERY SILTY, GRITTY TEXTURE; SLtGHTLY EXPANSNE WHEN HYDRATED; SLIGHTLY HY~ROPH(LIC; NO CUTTINGS FLUORESCENCE; NQ HYDROCARBONS. SAND {3110' - 3170') = CLEAR-WHITE, FROSTED, TRANSLUCENT TO TRANSPARENT, LIGHT GRAY, MEDIUM LIGHT GRAY, MEDtUM DARK GRAY, DARK GRAY-BLACK; TRACES OF LIGHT GREEN LtTHICS; FINE GRAiN, VERY FENE GRAIid, MEDIUM GRAIN, SI~.T SiZE GRAtNS, OCCASiONAL COARSE GRAIN; FA1R TO MODERATE SORTI~IG; RNGULAR, SUSANGULAR, ~~W TO MODERATE SPHERICITY; SOME FROSTED SURFACE FEATURES; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYDR4CARBON lNDtCATQRS CLAY/SILTSTONE {3200' - 3240') = VERY ~IGHT GRAY TO VERY LIGHT GRAYfSH BROWN; VERY SOFT; MODERATE~Y TO SLlGHTLY STICKY; VERY MUSITY AND PASTY SOME SLIMY CONSISTENCY; GLOBULAR, SHAPELESS CUTTINGS HABIT; EARTHY LUSTER; VERY SILTY, CLAYEY, GRlTTY TEXTURE; MODERATE EXPANStVE WHEN HYDRATED; SLIGHTLY ~ HYDROPHILiC; NO CUTTINGS FLUORESCENCE; NO HYDR~CAR80NS. ~ EP(J~H ' ° ~*~~~^~^ Sak River #1 ~ SAND {3240' - 3290') = CLEAR-FROSTED, CLEAR-WHiTE, TRANSLUCENT, MEDIUM LIGHT GRAY, MEDiUM GRAY, QARK GRAY, OCCASIONALLY DARK GRAY-BLACK, TRACE LtTHICS VARfOUS COLORS; FINE GRAINS, MEDIUM GRAiNS, COARSE GRAlNS WITH SOME SILT SIZE GRAINS; FAIRLY TO MO~ERATELY SORTED; ANGULAR TO SUBANGULAR; MODERATE TO lOW SPHERICITY; OFTEN FROSTED SURFACE FEATURES; N~N CALCAREOUS, NO FLUORESCENCE AND NO WDICATtONS OF HYDROCARB4NS. SAND (3290' - 3360') = CLEAR-WHITE, CLEAR-FR4STED, TRANSLUCENT, MEDIUM LIGHT GRAY, MEDIUM GRAY, DARK GRAY, OFTEN DARK GRAY-SLACK, TRACE LITHICS VARIOUS COLORS; FtNE GRAINS, ME~IUM GRAINS, GOARSE GRAINS WITH SOME SILT SI~E GRAiNS; FAIRLY T~ MODERATELY SORTED; ANGULAR TO SUBANGULAR; MODERATE TO LOW SPHERICITY; QFTEN FROSTED SURFACE FEATURES; NON CALCAREOUS, NO FLUt~RESCENCE AND NO INDlCATIONS OF HYQROCARBONS. CLAYISILTSTONE (336Q' - 3460'~ = VERY LIGHT GRAYISH BROWN TC) VERY LIGHT GRAY; VERY SOFT; M4DERATELY TO SLIGHTLY STICKY; VERY MUSITY, SQME SLIMY AND PASTY C~NSISTENGY; GLOBULAR, SHAPEIESS CUTTINGS HABIT; EARTHY LUSTER; VERY SI~TY, CLAYEY, GRlTTY TEXTURE; SLIGHTLY TQ MODERATELY EXPANSlVE WNEN HYDRATED; HYDROPHILIC; RARE SCATTERED PYRITE; NO CUTTiNGS FLUORESCENCE; HYDROCAR80N tNDiCATQRS NOT PRESENT. SAND {3420` - 3490'} = C~EAR-WHlTE, CLEAR-FROSTED, TRANSLUCENT, MEDfUM ~lGHT GRAY, MEDIUM GRAY, DARK GRAY, OFTEN DARK GRAY-BLACK, TRAGE LITH(CS VARIQUS COLORS; FIME GRAINS, MEDIUM GRAINS, COARSE GRAINS WITH SOME SII.T SiZE GRAINS; OCGASIONAL PEBBLES; FRIR TQ MODERATE SQRTING; ANGULAR TO SUBANGULAR; LQW TO MODERATE SPHERICITY; OFTEN FROSTED AND OCGASIONAL IMPACT SURFACE FEATURES; NON CALCAREOUS; RARE SCATTERED PYRlTE; NO CUTfINGS F~UORESCENCE, NO NYDROCARSON ~ iNDICATI~NS. CLAYJ SILTSTONE ( 3540" - 3580'} = LIGHT TO MEDIUM BROWN TO LIGHT BROWNISH GRAY; VERY SOFT; SLiGHT TO MODERATELY STICKY; SHAPELESS, GLOBULAR CUTTtNGS; SLRMY TO PASTY; SILTY TO CLAYEY TEXTURE, OCCASIONALLY GRlTTY FROM VERY FINE SUSPENDED SANDS; DULL TO EARTHY LUSTER; HYDROPHf~IC MODERATE TO VERY SE~LUBLE; SL(GHT TO MODERATELY EXPANSIVE WHEN HYDRATED; POOR COHESIVENESS; POOR TO FAIR ADHESIVENESS; NON CALCAREOUS; TRACE PYRITE NODULES; SCATTERED PEBBLES 3- SMM; NO SAMPLE FLUORESCENCE; NQ HYDROCARBON !NDlCATQRS. ClAY {3560' - 369Q') = LIGHT GRAY TO LIGHT GRAYlSH BROWN WCTH LEGHT BROWN SECONDARY HUES; VERY SOFT; MQDERATELY STICKY; AMORPHOUS, GLOBULAR, SHAPELESS CUTTiNGS; SILTY TO CLAYEY TEXTURE; DULL TO EARTHY I.USTRE; SLIMY TO PASTY; VERY SOLUBLE; EAS{LY DISSQLVING INTO MUD SYSTEM RESULTtNG IN VERY POOR SAMPLE QUALiTY; VERY POOR RETURNS COMING BACK; VERY L~W VOLUME COMING ACROSS SHAKERS STARTING AT 3590' SAMPLE ANC} C~NTINUtNG THRU 3650' SAMPLE; NO SAMPLE FLUORESCENGE; NO HYDROCARBON 1NDICATORS. SANQt CONGLOMERATiC SAND {3640'-3760'} = OVERALL "SALT ANa PEPPER" ,s-PPEARANCE WITH ABUNDANT VARICOLORED ~iTHICS, DOMINANTLY CI.EAR TO TRANSLUCENT QUARTZ, LIGHT TC} MEDIUM GRAY TO GREENISH GRAY, DARK GRAY TD BLACK, TRACE PALE ROSE AND DARK RED LlTHICS; VERY FINE ~OWER TU RARE VERY COARSE UPPER, DOMtNANTLY MEDlUM LOWER TO COARSE I.OWER; ANGUTAR TO SUBANGULAR; UNCONSOIIDATED; VERY POORLY SORTED; TRACE PYRITE; TRACE VERY DARK BROWN TQ BLACK, F(BROUS, VIFOODY MATERIAL; ABUNDANT, VERY SOLUB~E CLAY THROUGHOUT; N~ SAMPLE FLUORESGENCE; Id0 HYDROCARBONS. ~ ~ ~ EPOGH 11 ~~~^~ Sak River #1 CLAY/ SiLTSTONE { 37Q0' - 3780'} = LIGHT TO MEDIUM BROWN TO LIGHT BROWNISH GRAY; ~ VERY S4FT; MODERATE TO VERY STICKY; SHAPELESS, GLOBULAR CUTTlNGS; SLlMY TO PASTY; SILTY TO C~AYEY TEXTURE, OCCASIONALLY GRlTTY FROM VERY FINE SUSPENDED SANDS; DULL TO EARTHY LUSTER; HYDROPHILIC MODERATE TO VERY SOLUBLE; SLIGHT TO MODERATELY EXPANSIVE WHEN HYDRATED; PO~R COHESItiIENESS; FAIR TO GOOD ADHESIVENESS; NflN CALCAREOUS; TRACE VERY COARSE LITHICS; NO SAMPLE FLUURESCENCE; NO HYDROCARBOtV INDICATORS. SAND (3780" - 389fl') = LIGHT TO MEDlUM GRAY V1lITH ASUNDANT VARICOLflRED LITHICS, CLEAR TO TRANSLUCENT QUARTZ, LIGHT TO MEDIUM GRAY TO GREENISH GRAY, DARK GRAY TO BLACK, TRACE PALE ROSE AND DARK RED LITHICS; VERY FINE LOWER TO RARE VERY C~ARSE UPPER, DOMtNANTLY FINE UPPER TO MEDlUM UPPER; ANGULAR TO SUBANGUtAR; UNCQNSOLlDATED; VERY PQORLY SaRTED; PRESENT AS SUSPENDEQ SAN~S tN dOM1NANTLY CLAY FORMAT40N; NO SAMPLE FtUflRESCENC~; Nt3 NYDR~CAR80N IN[3fCATORS PRESENT. CLAYI SILTSTONE ( 3$50' - 3940'} _ ~IGHT TO MEDIUM BRQWN TO LIGHT BROWNISN GRAY; VERY SOFT; MODERATE TO VERY STICKY; SHAPEI.ESS, GC.OBULAR CUTTINGS; SLIMY TO PASTY; S1LTY TO CLAYEY TEXTURE, OGCASlONALLY GRlTTY FRQM VERY FINE SUSPEN~ED SANDS; DUL~. TO EARTHY LUSTER; HYDROPHILiC MODERATE TO VERY SO~US~E; S~iGHT TO MODERATELY EXPANSiVE WHEN HYDRATED; POOR CQHESIVENESS; FAIR TO GOt?D RDHEStVENESS; NON CALCAREOUS; TRACE VERY Ct~ARSE LITHICS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON iNDlCATORS. SAND (3900' - 4030') = llGHT GRAY OVERAL~, lNDiVIDUAL GRAINS DflMINANTLY CLEAR TO TRANSLUCENT QUARTZ, TRACE LIGHT GREENISH GRAY, MEDtUM TQ DARK GRAY AND BLAGK LITHICS; VERY F#NE UPPER T4 RARE VERY COARSE LOWER, D~MINANTLY FINE UPPER TO MEDIUM LOWER; ANGULAR Tfl SUBANGULAR; WELL SORTED; UNC{'lNSOL1DATED; TRACE ~ 100SE PYRfTE N~DULES; TRACE DARK REDDiSH BROWN FiSROUS, V1lDODY MATERIAL; NO SAMPLE FLUORESCENCE; NO HYDROCARBONS. CLAY {39Q0' - 4030') = LlGHT GRAY TO LlGHT GRAYESH SROWN WITH LIGHT BROWN SECONDARY HUES; VERY SOFT; MODERATELY STICKY; AM4RPHOUS, GL~SULAR, SHRP~LESS CUTTINGS; SILTY T4 CLAYEY TEXTURE; DULL TO EARTHY LUSTER; SLIMY TO PASTY; VERY SOLUBLE; POOR COHESIVENESS; POfJR TO FAIR AOHESIVENESS; NON CALCAREOUS. SAND (404d' - 417Q) = LlGHT GRAY OVERA~L WiTH INDIVIDUAL LITH{CS D4MINANTLY GLEAR TO TRANSLUCENT Tt7 FROSTED WHITE QUARTZ, MEDIUM TO DARK GRAY TO BLACK PROViDING A "SALT AND PEPPER" APPEARANCE, TRRCE LIGHT GREENISH GRAY AND DARK DUSKY RED LITHICS; VERY FINE UPPER TO RARE VERY COARSE UPPEFt, ~OMINANTLY FINE UPPER TO MEDIUM LOW ANGULAR TO SUBANGU3..AR; FAIR TO G~~D SORTING; U~iCONS~LIDATED; SLIGHT TO MaDERATELY GALCAREOUS; COM4IRON Tfl ASUNDAt~T METAL SHAVENGS FROM CASiNG; NO SAMPLE FLUORESCENCE; NO HYDROCARBON 3NDlCATORS. CLAY (4'! 2d' - 422Q'} = LlGHT GRAY TO LlGHT GRAYlSH BRQWN WiTH LlGHT BFtOWN SECONDARY HUES; VERY SOFT; SHAPELESS, AMORPHOUS CUTTINGS; SI~TY T~ CLAYEY TO GRITTY TEXTURE FROM FiNE SUSPENDEd SAND; DUL~ TO EARTHY LUSTER, SLiMY TQ P,4STY; HYDROPHILIC; VERY SOLUBLE; SLIGNT TO MODERATELY EXPANSIVE WHEN HYDRATED; POflR COHESfVENESS; POOR TO FAIR ADHESIVENESS; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICAT4RS i E~ EP4CH ~ 2 ~~~»~~^ SakRiver#1 ~ SAND {4190' - 4250) = LIGHT GRAY OVERALL WITH CLEAR, TRANSLUCENT AND FRaSTED WHITE QUARTZ, ALSO MEQIUM GRAY, MEDIUM DARK GRAY AND DARK GRAY, TRACES OF GREENISH GRAY AND REDDISH BROWN ~iTHICS; LOWER VERY FINE GRAIN TO COARSE GRAIN WITH RARE UPPER VERY COARSE GRAIN; ANGULAR TO SUB-ANGULAR; FAfR TO WELL SORTlNG; UNC(3NSOLIDATED; SLIGHT~Y TO MODERATELY CALCARE~US; ABUNDANT PYRITE SCAiTERED THROUGHOUT OUT SAMPLE CUTTiNGS; COMMON METAL SHAVINGS FROM CASING, NO SAMRLE FLUORESCENCE; NO HYDROCARB~N INDiCATORS PRESENT IN SAMPLE. CLAY {4270' - 4320') = UGHT GRAY TO LtGHT GRAYiSH BROWN WITH LIGHT BROWN SECONDARY HUES; VERY SOFT, SLIMY TO PASTY GONSISTENCY; SHARELESS FRACTURE; AMORPHOUS CUTTINGS; EARTHY TO DULL LUSTER; SlLTY, GRITTY AND CLAYEY TEXTURE; VERY SO~UBLE; MODERATELY EXPANSNE WHEN HYDRATED; HYDROPHI~IC; NQ SAMPLE FLUORESCENCE; NO INDlCATION OF HYDROCARBONS. CIAY (4320' - 437Q'} = L[GHT GRAY TO LIGHT GRAYtSH BRdW~t WtTH L{GHT BR4WN SECONDARY HUES; VERY SOFT, SLIMY TO PASTY CONSISTENCY; SHAPELESS FRACTURE; AMORPHOUS CUTTINGS; EARTHY TO DUL~ ~USTER; SILTY, GRITTY AND CLAYEY TEXTURE; VERY SOLUBLE; MODERATELY TQ SLlGHTLY EXPANSEltE WNEN HYDRATED; HYDRQPHILIC; NO FLUORESCENCE iN SAMFLE; NO 1NDICATION OF HYDROCARBONS. SAND (4380' - 4450) = LIGHT GRAY OVERALL WITH CLEAR, TRANSLUCENT AND FROSTED WHITE QUARTZ, ALSO MEDIUM GRAY, MEDIUM DARK GRAY AND DARK GRAY, TRACES ~F GREENISH GRAY AND REDDISH BROWN LtTHICS; LOWER VERY F{NE GRAIN TO COARSE GRAIN W{TH RARE UPPER VERY COARSE GRAIN; ANGULAR TO SUB-RNGULAR; FAIR TO WELL SORTiNG; UNCONSOLfDATED; SLIGHTLY TO MODERATE~Y CALCAREOUS; ABUNDANT PYRITE SCATTERED THROUGHOUT OUT SAMPLE CUTTiNGS; COMMON METAL SHAVINGS FROM CASlNG; NO SAMPLE FLUORESCENCE; N4 HYDROCARSON INDICATQRS PRESENT iN SAMPLE. ~ CLAY (4450' - 4500') _~IGHT GRAY TO tIGHT GRAYISH BROWN WITH ~IGHT BROWN SECONDARY HUES; VERY SOFT, SLtMY TO PASTY CONS(STENCY; SHAPELESS FRACTURE; AMORPHOUS CUTTtNGS; EARTHY TO DULL LUSTER; S1LTY, GRITTY AND CLAY~Y TEXTURE; VERY SOLUBLE; M~DEF2ATELY TO SLIGHTLY EXPANSIV~ WHEN HYDRATED; HYDROPHIL3C; NO FLUORESCENCE iN SAMPLE. SAND {450d' - 4570) = LfGHT GRAY OVERALL W1TH CLEAR, TRANSLUCENT AND FROSTED WHITE QUARTZ, ALSO MEDIUM GRAY, MEDIUM DARK GRAY AND DARK GRAY, TRACES OF GREENISH GRAY AND REDDiSH BROWN LITHICS; LOWER VERY FiNE GRAiN TO COARSE GRA1N WiTH RARE UPPER VERY CQARSE GRAIN; ANGUTAR TO SUB-ANGUTAR; FAIR TO WELL SORTING; UNCONSOLIDATED; SLIGHTLY TO MODERATELY CALCAREOUS; ABUNDANT PYRITE SGATTERED THROUGN OUT SAMPIE CUTTtNGS; COMMQN METAL SHAViNGS FROM CAS(NG; NO SAMPLE FLUC}RESCENCE; NO HY~ROCARBON INDICATORS PRESENT IN SAMPLE. C~AY (4580' - 462Q') = LfGHT GRAY TO LtGHT GRAYISH BROWN WITH LiGHT BROWN SECONDARY HUES; VERY SOFT, SLIMY TO PASTY CONSISTENGY; SHAPELESS FRACTURE; AMORPHOUS CUTTINGS; DULL TO EARTHY LUSTER; SlLTY, GRlTTY AND CtAYEY TEXTURE; VERY SOLUBLE; MODERATELY TO SLiGHTLY EXPANSIVE WHEN HYDRATED; HYDR~PHILIC; NO SAMPLE FLUORESCENCE. SAIdD (465Q' - 47'l0) = CLEAR, TRRNSLUCENT FROSTED WHiTE QUARTZ, ALSO L1GHT GRAY, MEDIUM GRAY, MEDIUM DARK GRAY AND DARK GRAY WITH TRACES OF REDDISH BROWN AND GREENiSH GRAY LiTHICS; LOWER VERY FINE GRAiNS TO UPPER CQARSE GRAfNS WiTH RARE VERY COARSE GRAINS PRESENT; ANGULAR T~ SUSAPIGULAR; ~AIR TO WELL SORTING; UNCONSOLIDATED; SLfGHTLY TO MODERATE~Y CALCAREOUS; SCATTER PYRITE THROUGH OUT SAMPLE; COMMON METAL SHAVING; NO SAMPLE FLUORESCENCE NO PRESENCE OF . HYDROCAR80NS. ~ EPOCH ~~ ~~~~ Sak R~ver #1 ~ CLAY {4720' - 4770') = LIGHT GRAY TO LIGHT GRAYISN BROWN WITH LIGHT BROWN SECONQARY HUES; VERY SOFT, Sl.IMY TO PASTY CONSfSTENCY; SHAPELESS FRACTURE; AMORPHOUS CUTTiNGS; EARTHY TO DULL LUSTER; SILTY, CRITTY AND CLAYEY TEXTURE; VERY SOLUBLE; MODERATELY TO SLIGHTLY EXPANSIVE WHEN HYDRATED; HYDROPHILIC; NO SAMPLE FLUORESCENCE. SAN~ (4780' - 484Q) = CLEAR, TRANSLUCENT FROSTED WHITE QUARTZ, ALSO LIGHT GRAY, MEDIUM GRAY, MEDIUM DARK GRAY AND DARK GRAY WlTH TRACES OF REDDlSH BRQWN AND GREENISN GRAY L1THlCS; L01NER VERY F1NE GRAINS TO UPPER C~ARSE GRAINS WlTH RARE VERY COARSE GRAINS PRESENT, ALSCI SILT SIZE GRAINS GOMMQNLY RRESENT; SUBANGULAR; FAIR TO 1NELL SORTING; UNCONSOLIDATED; StIGHTLY TO MODERATELY CAICAREOUS; SCATTER PYRITE THROUGH QUT SAMPLE; COMMON METAL SHAVlNG; NO SAMPLE FLUORESGENCE NQ PRESENCE ~F HYDRQGARBON tND4GATORS. CLAY {4720' - 4770') = LIGHT GRAY TO LIGHT GRAYiSH BROV1lN, LfGHT BROWN, MEDIl1M LiGHT BROWNS ALSO PRESENT; SOFT TO MODERATELY SO~T, OCCASI~NAL~Y SLIGHTLY FIRM; PASTY A~ID CI.UMPY CONSISTENCY; AMORPHOUS, WITH SOME B~~CKY FRACTURE BEGINNiNG TO APPEAR; EARTHY LUSTER; CLAYEY, SlLTY, GRlTTY TEXTURE; NE} SAMPLE F~UORESCENCE, NO HYDROCARBORI {NDiCATORS. CARBONACEOUS MATERIAUSHALEIPEAT {4930 - 4980) = ME~lUM BROWN, DARK BROWN T~ BLACK; SOFT, CLUMPY, SOME WITH STlFF CONSISTENCY; SO~T TO MOD FlRM, AND CRUMBLY TO BR{TTLE TENACITY; IRREGULAR FRACTURE; SOME WITH FLAKY CUTTINGS HABIT; EARTHY, SOME WITH RESINOUS LUSTER THIN STRUCTURE; SOME FIBROUS AND SlLTY; NO SAMPLE FLUDRESCENCE; NO HYDROCARBON CUT FLUORESCENCE. SRND {4960' - 5030) = CLEAR, TRANSLUCENT FROSTED WHITE QUARTZ, ALSO LIGHT GRAY, ~ MED(UM GRAY, MEDIUM DARK GRAY AND DARK GRAY WITH TRACES OF REDDiSH BROWN AND GREENISH GRAY LtTHICS; L~WER VERY FINE GF~AINS TO UPPER COARSE GRAINS WITH RARE VERY COARSE GRA(NS PRESENT, ALSO SILT SIZE GRAINS COMMONLY PRESENT; 5UBANGULAR; FAlR TO WELL SORTING; UNCONSOLlDATED; SLlGHTLY TO MOQERATELY CALCAREOUS; TRACES OF SCATTER PYRITE; COMMON CARBONACEOUS MATERIAL 1N SAMPLE; NO FLUORESCENCE IN SAMPLE; NO HYDROCARBON iNDICATC)RS PRESENT. CLAY {5030" - 5Q80'} = LIGHT GRAY T4 UGHT GRAYISH BROWN, LIGHT BROWN; VERY SOFT, SOFT, RARELY MODERATELY SOFT; PASTY, CLt?TTED, CURDY CONStSTEhlGY; IRREGUtAR AND BLOCKY FRACTURE; EARTHY, DULL LUSTER; SiLTY, CLAYEY TEXTURE; MODERATELY EXPANSiVE WHEN HY~RATED; NO SAMPLE FLUORESCENGE, NQ HYDROGARBON INDICATORS. SAIVD (50$0' - 515fl} = CLEAR, TRANSLUCENT ~ROSTED WHlTE QUARTZ, ALSO LIGHT GRAY, MEDIUM GRAY, MEDIUM €}ARK GRAY AND DARK GRAY WtTH TRACES OF RE~D[SH BROWN AND GREENISH GRAY IiTHICS; IOWER VERY F~N~ GRRlNS TO UPPER COARS~ GRA{NS WiTH COMMON VERY COARSE GRAINS PRESE~IT, PREDOMINANTLY UPPER MEDiUM GRAINS; ANGULAR, SUBANGULAR; FAIR TO POOR SORTlNG; TRACES OF SCATTERED PYRITE; GOMMON CARBONACEOUS MATERIAL IN SAMPLE; ND FLUORESCENCE IN SAMPLE; NO HYDROCARBON iNDICATORS PRESENT. CLAY (5154' - 5200') = LIGHT GRAY TO LfGHT GRAYISH BROWN, WtTH LtGHT BROWN HUES BEiNG COMMON; VERY SOFT, SOFT; PASTY, CLOTTED, CURDY CONStSTENCY; lRREGULAR AND BLOCKY FRACTURE; EARTHY, DU~L LUSTER; SILTY, CLAYEY TEXTURE; M4DERATELY EXPANSNE WHEN HYDRATED; HEAVY AMOUNTS OF CARBONACEQUS MATERIAL iN SAMFLE; NO FLUQRESCENCE IN SAMPLE; NO HYDROCARB{)N INDICATORS. ~ U E~ EPtJCH ~~ ~~~^~ Sak R'sver #1 ~ SAND (5200' - 5280) = CLEAR, TF;ANSLUCENT FROSTED WHITE QUARTZ, ALSO LIGHT GRAY, MEDiUM GRAY TO DARK GRAY WITH TRACES OF REC}~lSH BROWN ANQ GREENISH GRAY LITHICS; LOWER VERY FINE GRAINS TO UPPER CQARSE WiTH OCCASIONAL VERY COARSE GRAINS BEING PRESENT, PRED~MfNANTLY UPPER MEDIUM GRAINS; ANGULAR, SUB- ANGULAR; SORTING IS FAIR TO MODERATELY WELL; TRACES OF SCATCERED PYRITE; AND COMMON CARBONACEOUS MATERlAL 1N SAMPLE; NO FIUORESCENCE !N SAMPLE; NQ CUT FLUORESCENCE aR OTHER HYDROCARBON INDCCATORS PRESENT. CLAY {5280' - 5330") = LIGHT GRAYISH BROWN LIGHT GRAY, WlTH LIGHT SROWN HUES BEING COMMQN; VERY SOFT, SOFT; STIGKY, TACKY GONSISTENCY; RARE SECTILE TENACITY; FRACTURE tS MOSTLY UN~ETERMiNED AND RAREtY BL4C~4Y; EARTHY, DULL LUSTER; SlLTY, GRITTY, CLAYEY TEXTURE; S~IGHTLY TO MODERATELY EXPANSIVE WHEN HYDRRTED; CARBONAGEQUS MATERtAL PRESENT IN SAMPLE; NC? FLUORESCENGE !N SAMPLE; Nd CUT FLUORESCENCE OR OTHER HYDROCARBON iNDICATORS. SAND ( 5340" - 5420') = L1GHT GRAY W1TH A MODERATE "SALT AND PEPPER" APPEARANCE, INDIVIDUAL GRAfNS DOMINANT~Y CLEAR TO TRRNSLUCENT QUARTZ, TRACE MEDIUM TO DARK GRAY AND BLACK; VERY FINE LOWER TQ VERY CQARSE UPPER, DOMINANT~Y FINE UPPER TO MEDiUM UPPER; POORLY SORTED; UNCONSOIIDATED; TRACE PE86LES 5MM; NO SAMPIE FLUORESCENCE; NO HYDROCARBON INDICATQRS. CLAY/ SILTSTONE ( 54fl0' - v510') = LIGHT TO MEDIUM SROWl~tSH GRAY; VERY SOFT; IRREGULAR ROUNDED TO SHAPELESS CUTTINGS; S{LTY TO CCAYEY TO SLIGHTLY GRITrI( TEXTURE; DiJLL TO EARTHY LUSTER; HYDROPHi~iC; MODERATE TO VERY SOLUBLE; MODERATE~Y EXPANS{VE WHEN HYDRATED; POOR COHESlVENESS; POOR TO FAlR ADHESIVENESS; TRACE DARK BROWN TO BLACK CARBONACEOUS MATERlAU COAL; FRAGILE; IRREGULAR CUTTINGS; POORLY DEVELOF'ED; TRACE VERY COARSE SAND AND PEBSLE ~ FRAGMENTS; NO SAMFLE FLUORESCENCE; NO HYDROCARBON INDiCATQRS. SAND (5450' - 556t}') = L1GHT GRAY WfT~H A MO~ERATE "SALT AND PEPPER" APPEARANCE, lNDIVIQUAL GRAINS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, TRACE MEDEUM TO DARK GRAY AND SLACK; VERY FINE LOWER T~ VERY COARSE UPPER, DOMfNANTLY F1NE UPPER TO MEDIUM UPPER; POORLY SORTED; UNCONSOLIDATED; TRACE PEBBLE AND PEBBLE FRAGMENTS UP TO 9MM; SU8-ROUNDED TO BROKEN SNARDS; VARICOLORED; NQ SAMPLE FLUORESCENCE; NO HYDROCARBON {NDICATORS PRESENT. CLAYI SILTSTONE { 5500' - 5620') = LiGHT TO MEDIUM GRAYlSH BROWN; VERY SOFT; IRREGULAR RC)UNDED TO SHAPELESS CUTTINGS; SILTY TO CLAYEY TO SLIGHTLY GRITTY TEXTURE; DU~.L TO EARTHY LUSTER; HYDROPH(LlG; MODERATE TO VERY SQIUBIE; MODERATELY EXPANSlVE WNEN HYDRATED; POQR COHESlVENESS; POOR TO FAfR ADHESIVENESS; SIITSTQNE COMMONLY GRADING TO VERY StLTY SANDSTC,}NE/ SANDY SiLTSTONE; LIGHT GRAY W1TH ~iGHT BROWN SECONDARY HUES; SOFT TO FRAGl~E; PULVERULENT; NON CALCAREOUS; NO SAMP~E F~UOrRESGENCE; NO HYDROCARBON INDICATORS PRESENT_ SAND ( 5600' - 5720'} = LiGHT TO MEDIUM GRAY QVERALL WITH ihIDiVIDUAL l.iTHICS DOMINANTI.Y CLEAR TO TRANSLUCENT QUARTZ, LESSER AMOUNTS OF LiGHT TO MEDIUM TO DARK GRAY, BLACK, TRACE LIGHT TO DARK BLUlSH GREEN, PALE ROSE AND YELLOWISH BROWN; VERY FINE LOWER T~ RARE VERY COARSE UPPER, DOMlNANTLY FINE LOWEf~ TO MEDIUM UPPER; POOR~Y SORTED OVERALL; ANGUL4R TO SUBANGU~AR; UNCONSOLIDATED WITH SCATTERED VERY FRAGILE SILTY SANDSTONE! SANDY SILTSTONE; V~RY LIGHT GRAY; ROUNDED TO IRREGULAR CUTTtNGS; PULVERULENT; ASNYI CLAYEY SUPPORTING MATRIX COMMON; NON CALCAREOUS; TRACE DARK SROWN TO SLACK CARBONACEOUS MATERIAL; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICATORS. ~ ~ EPOCH ' 5 ~~~^~^ Sak River #1 ~ SANDI CONGLOMERATIC SAND {5680' -5790')= LiGHT TO MEDIUM GRAY T{3 GRAYISH BROWN OVERALL WITH tNQIVIDUAL GRA{NS QQMiNANTLY CLEAR TO TRANSLUCENT QUARTZ, FROSTED WHiTE, LIGHT TO MEDIUM GRAY TO GREENlSH GRAY AND BLACK, TRACE YELLOWISH BROWN AND PALE ROSE; VERY FINE UPPER T~ VERY COARSE UPPER, DOMINANTLY F{NE UPPER T~ MEDtUM UPPER; ANGULAR T4 SUBANGULAR; POORLY SORTED; DOMINANTLY UNCONSOLIDATED WITH TRACE SiLTY SANDSTONE! SANDY SILTSTONE; FRAGfLE TO PULVERULENT; NON CALCAREOUS; TRACE BLACK CARBdNACEOUS MATERIAL; NO SAMPLE FLU4RESCENCE; NO HYDROCARBON INDICATORS PRESENT. CLAY/ StLTSTONE ( 5770' - 5880'} = LtGHT TO MEOtUM GRAY(SH BRQWN; VERY SOFT; IRREGULAR RC)UNDED TO SHAPE~ESS CUTTINGS; SlLTY TO CLAYEY TO SLIGHTLY GRITTY TEXTURE; DU~L TO EARTHY LUSTER; HYDROPHILIC; MO[}ERATE TO VERY SOLUBLE; MODERATELY EXPANSlVE WHEN HY~RATED; PQOR GQHESIVENESS; POQR TQ FAtR ADHESIVENESS; SILTSTONE COMMONLY GRADING T~ VERY SILTY SANDSTONE/ SANDY SILTSTONE; LIGHT GRAY WITH LiGHT BROWN SECONDARY HUES; SOFT TO FRAGtLE; PULVERULENT; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; N~ HYDROCARBON tNDICATORS PRESENT. SAND { 5840' - 5920') = LtGHT GRRY WITH A MODERATE "SALT AND PEPPER" APPEARANCE, INDiVIDUAL GRAINS d{}MlNANTLY CLEAR TO TRANSLUCENT QUARTZ, TRACE MEDIUM TO DARK GRAY AND BLACK; VERY FINE LOWER TO VERY COARSE UPPER, DOMINANTLY FlNE UPPER TO MEDIUM UPPER; POORLY SORTED; UNC~NSOLIDATED; TRACE PESBLE RND PEBBLE FRAGMENTS 6MM COMMON; TRACE S{LTY SANDSTQNEf SANDY StLTSTONE; LlGHT GRAY TO GRAYISH BROWN; ROUNDED TO IRREGULAFt CUTTINGS; SflFT; ~RAGiLE T~ PULVERULENT; VERY ASITYtCLAYEY SUPPQRTfNG IVIATRIX; NON CALCAREQUS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICATORS PRESENT. ~ CLAY (5920' - 6Q00'} = LIGHT GRAY TO LlGHT GRAYISH BROWN WiTH LIGHT BROWN SECONDRRY HUES; VERY SOFT; SHAPELESS, AMORPHOUS CUTTINGS; SlLTY TO CLAYEY TC~ GRITTY TEXTURE FROM FINE SUSPENDED SAND; DULL Ta EARTHY LUSTER; SLlMY TO P,4STY; HYDROPHILIC; VERY SOLUBLE; SLIGHT TO l1AODERATELY EXPANSIVE WHEN HYQRATEQ; POOR COHESIVENESS; POOR TQ FAiR ADHESIVENESS; NON CALCAREOUS; NO SAMPLE FI.U(3RESCENCE; NO HYQROCARBON tNDICATC3RS. SAND { 598a' - 6100'} = LIGHT GRAY TO L{GHT GRAYISH BROWN OVERALL WITH 1NDIVIDUAL GRAINS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, TRACE MEDlUM TQ DARK GRAY AND BLACK; VERY FiNE LOWER TO VERY COARSE UPPER, DOMiNANTLY FWE UPPER TO MEDIUM UPPER; PO~RLY SORTED; UNCONSOLIDATED; TRACE PEBBLE AND PEBBLE FRAGMEMTS 6MM COMM4N; TRACE SlLTY SANDSTONE/ SANDY SILTSTONE; LiGHT GRAY TO LIGHT BROWN; ROUNDED TO IRREGULAR CUTTlNGS; SO~T; FRAGI~.E TO PllLVERUIENT; VERY ASITY/CLAYEY SUPPORTING MATRIX; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NQ NYC}RQGARBON INDICATORS PRESENT. CLAY/ SILTSTONE ( 6070' - 6150') = LIGHT TO MEDIUM GRAYISH BROWN; VERY SOFT; IRREGULAR R~UNDED T~ SHAPELESS CUTTINGS; SlLTY TO CLAYEY TO SLIGHTLY GRITTY TEXTURE; DUL~ TO EARTHY LUSTER; HYDROPHtLiC, M~DERATE TO VERY SOLUBLE; MUDERATELY EXPANSIVE WHEN HYDRATED; POOR COHESIVENESS; POOR TO FAiR ADHESNENESS; SILTSTUNE COMMON~Y GRADING TO VERY SILTY SAN[}STONE/ SANDY SlI.TSTONE; LIGHT GRAY WITH LIGHT BROWN SECONDARY HUES; S~F7 TO FRAGlLE; PULVERULENT; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICATORS PRESENT. ~ ~ EPOCH ~ ~ ~~~~~ Sak River #1 ~ SAND ( 6140' - 6250') = LIGHT TO MEDIUM GRAY OVERALL WITH INDiVIDUA~ LITHICS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, LESSER AMOUNTS OF LIGHT TO MEDIUM TO DARK GRAY, BLACK; VERY FINE LOWER TO COARSE UPPER, DOMiNANTLY ~iNE LOWER TO MEDfUM UPPER; POORLY SORTED OvERALL; ANGUTAR TO SUBANGULAR; UNCONSOLIDATED WITH SCATTERED VERY FRAGILE SILTY SANQST~NE/ SANDY SlLTSTONE; VERY E.IGHT GRAY; ROUNDED TO IRREGULAR CUTTINGS; PULVERULENT; ASITYI C~AYEY SUPPORTING MATRiX COMMON; NON CALCAREOUS; NC} SAMPLE FLUORESCENCE; NO HYDRO~A~RBON (NDICATORS. CLAY {6200' - 6280') = LlGHT GRAY TO LlGHT GRAYISH SROWN WITH L1GHT SROWN SECONDARY HUES; VERY SOFT; SHAFELESS, AMORPHQUS Cl1TTINGS; StLTY TO CLAYEY TO GRITTY TEXTURE FROM FINE SUSPENDED SAND; DULL TO EARTHY LUSTER; SIIMY TO PASTY; HYDROPHILIC; VERY SOLUB~E; SLtGHT TO MODERATELY EXPANStVE WHEN HYDRATEQ; POOR GOHESiVENESS; P04R TQ FA4R ADHESlVENESS; COMMQNLY GRAQING TC} SILTSTONE AND SILTY SANDSTONE; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HY~ROCAR80N (NDICATORS. SAND { 6260' - 6370') = LIGHT TO MEDfUM GRAY OVERAL~ WfTH IND{VlDUAL LITHICS QOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, LESSER AMOUNTS QF LlGNT TQ MEDEUM TD DARK GRAY, BLACK; VERY F1NE Lt3WER TO COARSE L~WER, DOMiNANTLY F1NE LOWER TO MEDIUM LOWER; POORLY SORTED OVERALL; ANGULAR TtJ SUBANGULAR; UNCONSQLIDATED WITH SCATTERED VERY FRAGILE SILTY SANDSTONE! SANDY SIlTST4NE; VERY LIGHT GRAY; ROUNDED TO IRREGULAR CUTflNGS; PULVERULENT; ASITY/ CLAYEY SUPPORTING MATRIX COMMON; NON CALCAREOUS; NO SAMPLE FLUC?RESCENCE; NQ HYDROCARBON INDiCATQRS. CLAY (6360' - 6440') _~IGHT GRAY TO LIGHT GRAYISH BRQWN WtTH LIGHT BROWN SECONDARY HUES; VERY SOFT; MODERATE TO VERY STICKY; AMORPH4US, GLOBULAR, SHAPELESS CUTTINGS; SlLTY TO C~AYEY TO SLIGHT GRITTY TEKTURE; DULL TO EARTHY ~ LUSTER; PASTY TO SLIMY; MODERATE T~ VERY SOLUBLE SE.IGHTLY EXPANSIVE WHEN HYDRATED; POOR COHESIVENESS; FAlR TO GOOD ADHESiVENESS; NON CALCAR~OUS; TRACE DARK BROWN TO BLACK CARBONACEOUS MATERIA~; NO SAMPLE FLUORESCENCE SAND/SANDSTONE {6420 - 6490) = LIGHT GRAY TO MEDIUM ~IGHT GRAY OVERAL~ W1TH INDIVIDUAL GRAINS BEING PREDOMINANTLY CLEAR T~ TRANSLUCENT QUARTZ, WfTH E.ESSER AMOUNTS OF LIGHT GRAY TO DARK GRAY AND BLACK; LOWER FWE GRAIN TO UPPER MEDlUM GRAIN; POORLY TO VERY POURLY S~RTED; ANGULAR TO SUBANGULAR; MODERATE SPHERtCtTY; UNCONS~LlDATED TO SOFT; CLAY MATRlX; COMMQNLY VERY SlLTY, CQMMONLY GRADING TO SiLTSTONE/SANDY SlLTSTONE; SOME SCATTERED PYRITE, OCCASIONAL CARBONACEOUS MATERlAL; NQ SAMPLE FLUORESCENCE; NO CUT FLUORESCENCE OR OTHER HYQRQCARBUN tN~ICATORS. CLAY {6500 - 6550} = VERY LEGHT GRAY, L{GHT GRAY TO LIGHT GRAYISH BRQWN WITH LtGHT BROWN HUES; VERY SOFT TO SOFT; STiCKY, TACKY CONSISTENCY; AMflRPHOUS, GIOBULAR, SHAPELESS GUTI"INGS; DUIL, EARTHY LUSTER; SILTY, GRITTY, C~AYEY TEXTURE; MODERATE TO VERY SOLUBLE; SLlGHTLY EXPANSIVE WHEN HYDRATED; POOR COHESNENESS; FAIR TO GOOD ADHESIVENESS; NON CALCARE~US; TRACES QF ~ARK BROWN TO BL.ACK GARBONACEOUS MATERIAL; NO SAMPLE FLUQRESCENCE. Pt0 CUT FLUORESCENCE. SAND/SANDSTONE {6560 - 6640) = LiGHT GRAY TO MEDIUM LtGHT GRAY OVERALL WtTH tNDtV4DUAL GRAItdS BEING PREDOM{NANTLY CLEAR TO TRANSLUCENT QUARTZ, WITH LESSER AMOUNTS OF LiGHT GRAY TO DARK GRAY AND BLACK; LOWER FINE GRAIN TO UPPER MEDIUM GRAtN; POORLY T4 FAIRLY SORTED; ANGUEAR TO SUB-ANGUL.AR; MO~ERATE SPHERICITY; UNCONSOLIDATED TO S~FT WITH RARE TO OCCASIONAL HARD CALCAREOUS CEMENTED C4NGLOMERATE SANDSTONE; MOSTLY CLAY MATRIX; COMMONLY VERY SfLTY; COMMONLY GRADING TO SILTSTONE AND SANDYISILTSTONE; SOME SCATTERED PYRITE; OCCASIONAL ~ CARBONACEOUS MATERIAL; NO SAMPLE FLUORESCENCE; N~ CUT FLUORESCENCE OR OTHER HYDROCARBON INQtCATORS. ~ EPacH ~7 ~~~~ Sak River #1 ~ CLAY {6650 - 6720) = LIGHT GRAY TO OFF VitHiTE, LIGHT GRAYISH BROWN WiTH LIGHT BROWN HUES; VERY SOFT TO SOFT; STICKY, TACKY CONStSTENCY; AMORPHOUS, GLOBULAR, SHAPELESS CUTT3NGS; DUtt, EARTHY LUSTER; StLTY, GRIT~Y, CLAYEY TEXTURE; MODERATELY TO VERY SOLUBLE; SLIGHTLY EXPANSIVE WHEN HYDRATED; POOR COHESIVENESS; FAIR TO GOOD ADHESIVENESS, NON TO SLIGHTLY CALCAREOUS; TRACES OF DARK BROWN TO BLACK CAR80NACEOUS MATERIAL; NO SAMPLE FLUORESCENCE. NO CUT FLUORESCENCE; TRACES OF POSSIBLE P~RCELAMTE OR HIGHLY INDURATED MUDSTONE BEING WHITE WITH LIGHT GREEN TINT; VERY, VERY HARD; NQN-GALCAREOUS; NO FLUORESCENCE. SAND/SANDSTONE (6740 - 6830} = LlGHT GRAY TO MEDIUM tIGHT GRAY OVERALL WITH {NDN{DUAL GRA{NS BEING PREDOMfNANTLY CLEAR T~ TRANSLUCENT QUARTZ, WITH LESSER AMOUNTS t?F LlGHT GRAY TO DARK GRAY AIVD BLAGK; LQWER FINE GRAlN TQ UPPER MEDIUM GRAIN; FAlR TO POOR SORTING; ANGULAR TO SUBANGUTAR; MODERATE SPHERICITY; UNCONSOLiDATED TO SOFT; WiTH RARE T4 OCCASIONAL HARD CALCAREOUS CEMENTED CONGLOMERATE SANDSTONE; MOST WITH CLAY MRTRIX; COMMONLY VERY SILTY; COMMONLY GRADING TO S{LTSTONE AND SANDY/SfLTSTONE; SOME SCATTERED PYRITE; OCCASIONAL CARBONACEOUS MA~'ERIAL; NO SAMPI.E FLUQRESCENCE; N~ CUT FLUORESCENCE OR OTHER HYDROCARBON INDICATORS. CtAY1SHALE (6830 - 6890) = LtGHT GRAYtSH BROWN, LlGHT GRAY, OFF WN1TE, MEDIUM GRAYISH BROWN; S4FT, VERY SOFT, RARELY MODERATELY SO~T; MOSTLY SHAPELESS CUTTtNGS W1TH SOME HAVING A BIQCKY FRACTURE; MODERATELY TO VERY SOLUBLE; SLiGHTLY EXPANSIVE WHEN HYDRATED; POOR COH~SIVENESS; FAiR TO GOOD ADHESIVENESS; NON TO SLlGHTLY CALCAREOUS; TRACES OF PYRITE AND DARK BRQWN TD BLACK CARBONACEOUS MATERIAL; NO SAMPLE FLUORESCENCE; NO CUT FLUORESCENCE. ~ SANDISANDSTONE (685Q - 6970) = VERY LiGHT GRAY TO MEDiUM LIGHT GRAY WITH INDIVIDUAL GRAINS BEiNG PREDOMlNANTIY CLEAR 70 TRANSLUCENT QUAR7Z, WITH LESSER AMOUNTS flF L{GHT GRAY TO DARK GRAY AND BLACK; LOWER FiNE GRAiN TO ~OWER MEDIUM GRAIN; FAIR TO POOR SORTING; ANGULAR TO SUBANGULAR; MODERATE SPHERfCITY; UNCONSOLIDATED TO SOFT; WITH RARE TO OCCASIONAL HARD CALCAREOUS CEMENTED SANDSTONE; MOST WITH CLAY MATRtX, WITH OCCASiONAL SiUCA MATRtX; COMMONLY VERY SILTY; COMMONLY GRADING TO SILTSTONE; SOME SCATTERED PYRITE; 4CCASIONAL CARBONACEOUS MATERIAL; NO SAMPLE FLUURESCENCE; NO CUT FLUORESCENCE. CLAY (698Q - 705Q) = VERY LIGHT GRAY, LIGHT GRAYISH BROWN, L[GHT GRAY, MEDtUM GRAYtSH SROWN; S~FT, VERY SOFT, RARELY MODERATELY SOFT; MOSTLY SNAPELESS CUTTINGS WITH SOME HAVlNG A BLOCKY FRACTURE; MODERATELY TO VERY SOLUBLE; SLIGHTLY TO MODERATELY EXPANSIYE WHEN HYDRATED; PQOR GOHESIVENESS; FAIR ADHESIVENESS; NON TO S~iGHTLY CALCAREOUS TRACES OF SCATTERED PYRiTE AND DARK BROWN TO BLACK CARBONACEOUS MATERIAL; NO SAMPLE FLUORESGENCE; Na CUT F~UORESCENCE. CLAY (7050 - 7120) = LIGHT GRAYISH BROWN TO MEDiUM GRAYiSH BRUWN, S~FT, VERY SOFT RARE~Y MODERATELY SOFT; MOSTLY SHAPELESS CUTTINGS WITH SOME HAVING A BLOCKY FRACTURE, MODERATELY TO VERY SOLUBLE; SLIGHTLY TO MODERATELY EXPANSfVE WHEN HYDRATED; POOR COHESIVENESS; FAIR AQHESNEN~SS; NON TO SLlGHTLY CALCAREOUS COMMON DARK BROWN TO BLACK CARBONACEOUS MATERIAL; TRACES O~ PYRITE; NO SAMPLE FLUQRESCENCE; NO CUT FLUORESCENCE. ~'1 L.J E~ EPC~~H ~~ ~~~~ Sak River #1 ~ SAND (7'i OQ'- 720Q'} = L1GHT GRAY OVERALL WITH 1NDIVIDUAL GRAINS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, MEDIUM TO DARK GRAY, BLACK AND TRRCE DUSKY RED; ANGULAR TO SU8-ROUNDED, DOMINANTLY SUBANGULAR; UNCONSOLIDATED; MODERATE TO MOQERAT~tY WELL SORTED; TRACE VERY ~SNE, LSG3iT SROWNISH GRAY SANDSTONE! SANDY SlLTSTONE FRAGlLE; PULVERULENT; NON CALCRREOUS, SAND PRESENT IN TRACE AMOUNTS iN DOMiNANTLY A VERY SOFT CLAY FORMATION; NO SAMPLE FLUORESCENCE; NO HYDROCARBON tNDICATORS PRESENT. CLAY/ SiLTSTONE { 7160" - 7280') = L1GHT TO MEDlUM GRAYlSH SROWN WlTH LfGNT BROWN SECONDARY HUES; VERY S4FT; M4DERATE TO VERY STtGKY; SHAPELESS, GLOBIliAR CUTTWGS SL1MY TO TACKY; SILTY TO CLAYEY TEX7URE; DULL TO EARTHY LUSTER; HYDROPHtLIC; VERY S~~UBLE; M£}DERATELY EXPANSIVE WHEN HYDRATED; POC?R COHESIVENESS; FAIR TO G~OD ADHESIVENESS; NON CALG~REQUS; TRAGE BLACK CARBONACEOUS MATERIAU COAL; FAlNT SHEEN iN 7250' SAMPI.E; UNIFORM VERY PALE GREEN TO GREENtSIT YELIOW FLUOR WiTH ~ECREASfNG FLUOR WITH DEPTH; VERY WEAK, PALE YELLOW TO GOLD CUT FLUOR; NO VIS CUT; ND VIS RESIDUA~ RING; NO STAIN, ODOR, OR FREE Oil; VERY PdOR HYDRQCARBON INDICATORS. SANDSTONE! SI~TSTONE (7260' - 7350'} = VERY IIGHT GRAY TU LiGHT GRAYISH BROWN; VERY FlNE LC}WER, GRAdING TQ SILT; IRREGUTAR CUTTINGS; FRAGILE 7Q PULVERU~ENT; SILTY TC? SLIGHTLY GRITTY TEXTURE; DUI.L TO EARTHY LUSTER; SCATTERED DULL, PALE GREENISH YELLOW SAMPLE FLUOR; WEAK, DULL GOLD CUT FLUOR; NO ODOR OR FREE OIL; VERY POlJR HYDROCARBON INC3tCAT4RS. SAND (7310' - 7360') = LIGHT BR~WN TO LIGHT BROWNISH GRAY OVERALL FROM ClAYEY/ SILTY SUPPQRTING MATRIK; INQIVtDUAL LtTH DOMINANTLY GLEAR TO TRANSLUCENT QUARTZ, TRACE DARK GRAY TO BLACK AND WHITE; VERY FINE LOWER TO FINE UPPER; ANGULAR TO ~ SUBANGULAR; VERY WELL SORTEQ; CE3MMON GRAIN SUPPORT; SANDSTONE VERY FRAGtLE AND FRIABLE; MODERATE TO VERY CALCAREOUS; TRAGE TO NO SAMPLE FlUORESCENCE; POSSIBLE MUD LUBRICANT FLUURESCENCE; NO STAIN OR FREE OIL, NO ~DOR; NO TO VERY POOR HYQROCARBON INDICATORS PRESENT. CLAY/ SiLTSTONE { 7390' - 750Q') = LIGHT GRAY WITH VERY LfGHT SROWN SECONDARY HUES; VERY SOFT, RARE SLIGHTLY F1RM; SHAPELESS, GLIJBULAR TO RARE IRREGULAR TO TABULAR CUTTtNGS; SILTY TO CLAYEY TO SLIGHTLY GRITTY TEXTURE; DULL TO EARTHY LUSTER; SLtMY TO TACKY; HYDROPH1LiC; MODERATE TO VERY SOLkJBLE; SLlGHT TO MO~ERATELY EXPANSIVE WHEN HYDRATED; POOR COHESlVENESS, FAiR TO GOOD ADHESIVENESS; NON CALCAREOUS; SILTSTQNE COMMONLY GRADtNG TQ VERY SILTY SANDSTONEI SANDY SILTSTQNE; \fERY L1GHT GRAY TO GRAYfSH SROWN; SUFT T4 SLIGHTLY FlRM; FRAGILE AND ~RtABLE; SlLTY SUPP~RTING MATRlX; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICATORS. SAND (746Q'- 7540`} = LtGHT GRAY OVERALL WITH INDIVfDUAL GRAtNS DOMtNANTLY GLEAR TO TRANSLUCENT QUARTZ, MEDIUM TO DARK GRAY, BLACK AND TRACE DUSKY RED; ANGULAR TC) SUB-ROUNDED, DOMINANTLY SUBANGUl..AR; UNGONSQLIDATED; M~DERATE TO MQDERATELY WELL SORTED, TRACE VERY FiNE, LIGHT BROV11NiSH GRAY SANaSTONE/ SANDY Sl~TSTONE FRAGI~E; PULVERULENT; NON CALCAREOUS; SAND PRESENT IN TRACE AMOUNTS IN DQMINANTLY A VERY SOFT CLAY FORMATION; NO SAMPLE FLUORESCENCE; NO HYDROCARBON lNDICATORS PRESENT. r ~ LJ ~ EP{JGH ' g ~~~~ 3ak River #1 ~ CLAY/ SiLTSTONE {7540' - 7620') = LiGHT TO MEDIUM GRAYiSH BROWN WITH LIGHT BROWN SECONDARY HUES; VERY SOFT; MODERATE TO VERY STICKY; SHAPEL~SS, GLOBULAR CUTTlNGS SLlMY TO TACKY; SILTY TO CLAYEY TEXTURE; DULL TO EARTHY LUSTER; HYDROPHILIC; VERY SOLlJBLE; MQDERATELY EXPANSIVE WHEN HYDRATED; POOR COHEStVENESS; FAIR TO GDOD ADHESIVENESS; NON CALCAREOUS; TRACE BLACK CARBONACEOUS fUTATER4AU COAL; N4 SAMPLE FLUORESCENCE; NU HYDR4CARBON INDICATORS. SlLTSTONEf SANDSTflN~ {76fl0' - 7680"} = V~RY L1GHT GR,4Y TU L1GHT GRAYtSH BROWN; VERY FiNE LC)WER, GRADING TO SILT; IRREGULAR CUTTINGS; FRAGILE TO PULVERULENT; SILTY TO SLlGHTI.Y GRITTY TEXTURE; DULL TO EARTHY LUSTER; Nt3N CALGAREOUS; TRACE DARK SROWN TO SLACK CARBC}NACEOUS MATERfAL/ CDAL; NO SAMP~.E FLUOF~ESCENCE; NO HYDRQCARBON INDIGATORS PRESENT. CLAYI SILTSTONE ( 764Q' - 7730'} = LIGHT GRAY WiTH VERY LIGHT BROWN SECQNDARY HUES; VERY SOFT, RARE SLIGHTLY FlRM; SHAPELESS, GLOBULAR TO RARE IRREGULAR TO TABULAR CUTTINGS; SiLTY TO C~AYEY TO SIIGHTlY GRITTY TEXTURE; DU~L TO EARTHY LUSTER; S~IMY TO TACKY; HYDRQPHILIC; MODERATE TO VERY SOLUBLE; SLIGHT T4 MODERATELY EXPANSIVE WHEN HYDRATED; POOR TO FAiR COHESIVENESS; FAIR TO GOC?D ADHESIVENESS; COMMON ~IGHT BROWN TO BROWNlSH GRAY SiLTSTONE GRADING TO VERY FINE, SILTY SANDSTONE; FRAGILE; PULVERULENT; NON GALCAREOUS; TRACE BLACK CARBONACEOUS MATERIAL; NO SAMPLE FLUORESCENCE; NO HYDROCARBON lNDICATORS PRESENT. SAND (7740`- 7800") = LIGHT GRAY OVERALL WtTH IN~tVIDUA~ GRAINS D4MtNANTLY CLEAR TO TRANSLUCENT QUARTZ, MEDiUM TO DARK GRAY, BLACK; ANGULAR TO SUBANGU~AR; MODERATELY WELL SORTED; UNCONSOLI~ATED; NO SAMPLE FLUORESCENCE; NO ~ HYDRUCARBON iNDiCATORS PRESENT. CLAY t7770 - 783Q} = LIGHT GRAY, MEDIUM UGHT GRAY, ME~[UM GRAY; VERY SOFT, SOFT RARELY SLIGHTLY FlRM; SLIMY, PASTY, TACKY CONSISTENCY; SHAPELESS TO BLOCKY FRACTURE; GLOBULAR TO IRREGULAR CUTTINGS HAB1T; SI~TY Tfl CLAYEY TO SLIGHTLY GR(TTY TEXTURE; DULL, EARTHY LUSTER; MASSiVE STRUCTURE; NO SAtNPLE FLUORESCENCE; NO CUT FLUORESCENCE. CLAY (7830 - 788Q) = LIGHT GRAY, MEDlUM LIGHT GRAY, tVtED1UM GRAY; VERY SOFT, SOFT COMIi114N SLIGHTLY FIRM, SL1MY, PASTY, TACKY CONSISTENCY; SHAPELESS TO BLOCKY FRACTURE; GLOSULAR TO IRREGULAR CUTTINGS HABiT; SILTY TO CV4YEY TO SLIGHTLY GRlTTY TEXTURE; DULL, EARTHY LUSTER; MASSIVE STRUCTURE; HEAVY TRACES OF SILTY SHALE; NO SAMPLE ~LUORESCENCE; NO HYDROCARBQN INDICATORS PRESENT. SILTSTONE {7930' - 7980') = VERY LIGHT GRAY, LIGHT GRAY, ~IGHT GRAYiSH BROWN; TACKY, PASTY CONSISTENCY; VERY SOFT, SQFT, RARELY MQDERATELY FlRM; S(LTY, GRfTTY, CLAYEY TEXTURE; DUlL, EARTHY LUSTER; NON CALCAREOUS; TRACES OF CARBONACEOUS MATERIAL; NQ SAMPIE Fl.UORESCENCE; N~ FLUORESCENCE CUT. CLAY (7920 - 799Q) = LIGHT GRAY, MEDIUM LIGHT GRAY, MEDIUM GRAY; VERY S4FT, SOFT GOMMON S~IGHTLY FIRM; SC.lMY, PASTY, TACKY CONSISTENCY; SHAPELESS TO BLOCKY FRACTURE; GLOBULAR TO IRREGUiAR CUTTINGS HABlT; SlLTY Tt? CLAYEY TO SLIGNTLY GRiTTY TEXTURE; DULL, EARTHY Ll1STER; MASSIVE STRUCTURE; TRAGES OF CARBONACEQUS MATERIAL IN SAMPLE; NO FLUORESCENCE, NO CUT FLUt}RESCENCE. SILTSTONE {7980' - 8030'} = VERY LIGHT GRAY, LIGHT GRAY, LIGHT GRAY{SH BROWN; TACKY, PASTY CONSISTENCY; VERY SOFT, SOFT, RARELY MODERATELY FIRM; SILTY, GRITTY, CLAYEY ~ TEXTURE; DU~L, EARTHY LUSTER; NON CAI.CAREOUS; TRACES OF CARBONACEOUS MATERIAL; NO SAMP[.E FLU~RESCENCE; NO FLUORESCENCE CUT. ~~ Fl'flCH Zo ~~~~^ SakRiver#1 ~ CLAY {8030 - 8080} = L1GHT GRAY, MEDIUM LIGHT GRAY, MEDIUM GRAY; VERY SOFT, SOFT COMMON SLiGHTL,Y FIRM; SL(MY, PASTY, TACKY C4NSISTENGY; SHAPELESS TO BLOCKY FRACTURE; GLOBULAR TO IRREGULAR CUT7INGS HABlT; SILTY TO CLAYEY TO SLIGHTLY GRITTY TEXTURE; DULL, EARTHY LUSTER; MASSIVE STRUCTURE; TRACES OF CARBONACEOUS MATERlAL {N SAMPLE; SOME GRADIN~ TO SILTSTONE; N~ FLUORESCENCE, NO CUT FLUORESCENCE. SILTSTONE (8090' - 8140'~ = VERY LlGHT GRRY, LIGHT GRAY, LIGHT GRAYISH BRQW~l; TACKY, PASTY CONSlSTENCY; VERY SOFT, SOFT, RARELY MODERATELY FlRM; SlLTY, GRITTY, CLAYEY TEXTURE; DULL, EARTHY LUSTER; NON GALCAREOUS; TRAGES OF CARBONACEOUS MATERIAL; SOME GRADING TO CLAYSTONE; NO SAMPLE FLUORESCENCE; NO CUT FLUORESCENCE. CLAY {813Q - 8180) = LlGHT GRAY, MEO(UM LIGHT GRAY, MEDIUM GRAY; VERY SOFT, SOFT COMMON SLIGHTLY FIRM; SLfMY, PASTY, TACKY CONSISTENCY; SHAPELESS TU BLOCKY FRACTURE; GLOBULAR TO 1RREGULAR CUTTINGS HABIT; SILTY TO SLIGHT~Y GRITTY TO C~AYEY TEXTURE; DULI, EARTHY LUSTER; MASSlVE STRUCTURE; TRACES OF CARBONACEOUS MATERIAL !N SAMPLE; SOME GRAQtNG TQ SILTSTQNE; NO SAMPLE FLUORESCENCE; NO CUT FI.UORESCENCE. CLAY/SILTSTQNE (8180 - 8270) = LIGHT TO MEDIUM GRAY; MEDIUM TO FINE GRAIN SIZE; VERY SOFT, COMMON FIRM; PASTY, MUSITY, SLlMY CONSlSTENCY; SHAPELESS, PLANAR, SLOCKY FRAGTIlFtE; G~QBUL.AR, ELONGATED, IRREGULAR CUTTtNG HAB{T; EARTHY TO GREASY LUSTER; SILTY, CLAYEY, TO SLIGHTLY GRiTTY TEXTURE; MASSiVE STRUCTURE; TRACES OF CARBONACE4US MATERIAL IN SAMPLE; SOME GRADING TO StLTSTONE; NQ SAMPLE FLUORESCENCE; NO CUT FLUORESCENCE. ~ CL~-Y (8274 - 8330) = LIGHT GRAY, MEDIUM LiGHT GRAY, MEDiUM GRAY; VERY SOFT, SOFT COMMON SLIGHTLY FIRM; S~tMY, PASTY, TACKY CONSISTENCY; SHAPELESS TO BLOCKY FRACTURE; IRREGULAR T~ GLOBULAR CUTTINGS HABIT; SILTY TO CLAYEY TO GRtTTY TEXTURE; DULl, EARTHY LUSTER; MASSIVE STRUCTURE; SMALL TRACES ~~ CARBONACEOUS MATERIAL IN SAIVIPLE; SOME GRAL3lNG T4 SILTSTONE; {d0 SAMPLE FLUORESCENCE; ~10 CUT FLUORESCENCE. S{LTST4NE (8330" - 838f~"} = LIGHT GRAY T4 LIGHT MEDIUM GRAY, ~lGHT GRAYISK SRtfWN; PASTY, TACKY, CLUMPY CONSISTENCY; VERY SOFT, SOFT QCCASlONAL MODERATELY FIRM; SILTY, CLAYEY, GRITTY TEXTURE; DULL, EARTHY TO GREASY LUSTER; NON CALCAREOUS; SL{GHT TRACE QF CARBONACEOUS MATER{At; S4ME GRAQ{NG Tt} CLAY; LIGHT TRACES OF LOOSE VERY FWE SAND GRAINS; NO SAMPLE FLUORESCENCE; NO CUT FLUORESCENCE. CLAY (8390 - 8484) = L1GHT GRAY, MEDtUM LtGHT GRAY, MEDlUM GRAY; VERY SOFT, SOFT COMMON SLIGHTLY FiRM; SLiMY, PASTY, TAGKY CONSlSTENCY; SHAPELESS TO BLOCKY FRACTURE; IRREGULAR TO GLOBUTAR CUTTINGS HABIT; SfLTY Tt} GLAYEY TQ GRITTY TEXTURE; DULL, EARTHY LUSTER; MASSlVE STRUCTURE; SMALL TRACES 0~ CARSONACEQUS MATERIAL IN SAMP~E; SOME GRADING TO SILTSTONE; OGCAStONAL SlLTY SHALE IN CUTTENGS; NO FLUORESCENCE; NO FLORESCENCE CUT. CLAY! SILTSTONE ( 8460' - 8550'} = LIGHT T~ MEDtUM GRAY TO LtGHT BROWNtSH GRAY; AM~RPHOUS, SHAPEIESS, GLQBUlAR CUTTINGS; SILTY TQ Cl.AYEY TEXTURE; VERY SOFT ANta STICKY; SL1MY TO PASTY; flllLL TO SLIGHTLY ~REASY LUSTER; HYDROPHiL1C; VERY SC?LUBLE SLIGHT T~ MODERATELY EXPANS{VE WHEN HYDRATED; PQOR COHESiVENESS; FAIR TO GOOD ADHESIVENESS; TRACE AMOUNTS OF VERY FINE CLEAR QUARTZ GRAINS; CLAYI SiITSTONE OCCASiONALLY GRADfNG TO VERY F1N~, S1LTY SANDSTONE/ SAN~Y SILTSTONE; NON CALCAREOUS NO SAMPLE FLUQRESCENCE; N~ HYDR~CARBON tNDICATORS ~ PRESENT. ~~ EPt)CH 2 ~ ~ ~~ Sak River #A • SILTSTOIVE/ SANDSTONE {8540' - 8630') = VERY LiGHT GRAY TU LIGHT GRAYISH BROWN; VERY FINE LOWER, GRADING TO SILT; fRREGULAR CUTTINGS; FRAGtLE TO PULVERULENT; SILTY TO SLIGHTLY GRITTY TEXTURE; DULL TO EARTHY LUSTER; NON CALCAREOUS; TRACE DARK BROWN TO BLACK GARBONACEOUS MATERlAU COAL; TR,4CE LIMESTONE iN $600' SAMPLE YELLOWtSH GRAY TO GRAYESH BRQWN WITH LIGHT TO MEDIUM BROWN SECONDARY HUES; HARD TO BRITTLE; lRREGULAR, MASSiVE CU7TINGS; SUCROSIC TEXTURE; DULL LUSTER; VERY STRONG ACID REACT(QN; Na SAMPI.E FLUORESCENCE; NO HY~R4GARB4N INDICATORS. CLAYI SILTSTONE { 861 Q' - 8740'} = LtGNT TO MEDtUM GRAY TO ~IGHT BR4WN{SH GRAY; AMORPHOUS, SHAPELESS, GLOBULAR CUTTlNGS; SILTY TO CLAYEY TEXTURE; VERY SOFT ANE} STfCKY; SLIMY TQ PASTY; DULL Ta SLIGHTLY GREASY LUSTER; HYDROPHtLIC; VERY SOLUBLE SLIGHT TO MODERATELY EXPANSIVE WHEN HYQRATED; PQQR COHEStVENESS; FAIR TO GOOD ADHESIVENESS; TRAGE AMOUNTS OF VERY F1NE C~EAR QUARTZ GRAiNS; CLAYI S{LTSTONE OCGAStONALLY GRAD(NG TO YERY FfNE, SILTY SANDSTONE/ SANDY SILTSTONE; NON CALCAREOUS TRACE PYRITE NODULES; TRACE FOSSILS; TRACE MEDIUM TO DARK GRAY SHALE; FIRM TO MaDERATELY HARD; PLATY TO BLOCKY; GRITTY TO S{~TY TEXTURE; EARTHY LUSTRE; NON PlANAR FRACTURE; NO SAMPLE FLUORESCENCE; NO HYDROCARSON 1NDICATORS PRESENT. SAND {8700'- 8820') = LIGHT GRAY OVERALL WlTH INDIVIDUAI GRAINS DOMlNANTLY CLERR TO TRANSLUCENT QUARTZ, MEDlUM TO DARK GRAY, BLACK; ANGULAR TO SUBANGULAR; MODERATELY WELL SORTED; UNCONSQLIDATED; WtTH TRACE SANDSTONE; MEDtUM TO DARK GRAY; VERY FINE GRAiN; HARD; ANGULAR, VERY COARSE, SHATTERED CUTTINGS; NON TO SL}GHTLY CA~CAREOUS; TRACE PYRtTE; TRACE BLACK CARB4NACEOUS tV1ATERlAL; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INQICATORS. ~ CLAY/ StLTSTONE (8760' - 8850') = LEGHT TO MEDIUM GRAY TQ LtGHT BROWNISH GRAY; AMORPHOUS, SHAPElES5, G~OBULAR CUTTINGS; SILTY TO CLAYEY TEXTURE; VERY SOFT AND STICKY; SLiMY TO PASTY; DULL TO SLIGHTLY GREASY LUSTRE; HYDROPHILIC; VERY SOLUBLE SLICHT TO MODERATELY EXPANSlVE WHEN HYQRATED; POOR COHESIVENESS; FAIR TO GOOD ADHESIVEWESS; NON CALCRREOUS; NU SAMPLE F~UORESCEhfCE; NO HYDROCARBON INDICAT~RS. CLAY/ StLTSTONE { 8610" - 8740") = LIGHT TO MEDIUM GRAY TO LIGHT SRC}V~INISH GRAY; AMORPHOUS, SHAPELESS, GLOBULAR CUTTlNGS; SILTY TO C~AYEY TEXTURE; VERY SOFT AND STICKY; SLIMY TO PASTY; DULL TO SLiGHTLY GREASY LUSTER; HYDROPHILIC; VERY SOLUBLE SLIGHT TO MODERATELY EXPANSIVE WHEN HYDRATED; POOR COHESIVENESS; FAIR TO GOOD ADHESIVENESS; TRACE AMOUNTS OF VERY FINE CLEAR QUARTZ GRAlNS; CLAY/ SILTST~NE OCCASfONALLY GRADING TO VERY F1NE, SILTY SANDSTONE/ SANDY SILTSTONE; NON CALCAREC)US TRACE ASITY TUFF; BROWNISH WHITE TO BUFF; SILTY TEXTURE; EARTHY TO GLASSY LUSTER; VERY IRREGU~AR SHAPED GUTi"INGS; VERY FRAG4LE AND PULVERULENT; NON CALCAREQUS; NO SAMPLE FLUORESCENCE; NO HYDR~CARBON INDICATORS. CLAYI SILTSTQNE ( 8920' -~10'} = L(GHT BROWNISH GRAY TO LIGHT GRAY; VERY SOFT TO RARE SLIGHTLY FIRM; STlCKY AT TIMES; SHAPELESS, GLOBULAR TO RARE BLOCKY CUTTINGS; SILTY T~ CLAYEY TEXTURE; DULL TO ~ARTHY ~USTER; SL{MY TE} TACKY; VERY SOLUBLE; SLIGHT TO MODERATELY EXPANStVE WHEN HYDRATED; PQ~R COHESEVENESS; POOR TO FAIR ADHESNENESS; TRACE PYRITE; TRACE VERY FINE, LOOSE QUARTZ GRAINS; St~TSTQNE CC}MM~NLY GRADING TO VERY FINE, SfLTY SAN~STONEI SANQY SfLTSTONE; 7RACE BLACK CARBONACEOUS MATERIAL; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYDROCARBON INDICATORS. n ~J E~ El'C~CH 22 ~~~~ Sak R'sver #4 ~ SAND (9000'- 9120') = LlGHT GRAY OVERALL WITH iNDN1DUAL GRAINS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, MEDIUM TO DARK GRAY, BLACK; ANGULAR T4 SUBANGULAR; MODERATELY WELL SORTED; UNCONS4LIDATED; WITH TRACE SANDSTONE, MEDIUM TO DARK GRAY; VERY FlNE GRAfN; HAR~; ANGULAR,IIERY COARSE, SHATTERED CUTTINGS; N~N TO SLEGHTLY CALCAREOUS; TRACE PYRITE; TRACE BLACK CARBONACEOUS MATERIAL; NO SAMPLE FLUORESCENCE; NO HYDROCARBON 1NDICATQRS. CLAYI SILTSTONE ( 905Q' - 9140') = LlGHT BROWNISH GRAY TO LiGHT GRAY; VERY SQFT TO RARE SLlGHTLY FlRM; STICKY AT TIMES; SHAPELESS, GLOBULAR TO RARE BLOCKY CUTTINGS; StLTY TO CLAYEY TEXTURE; ~ULL TO EARTHY LUSTRE; S~IMY TO TACKY; VERY SOLUBLE; S~IGHT TO MODERATELY EXPANSIVE WHEN HYDRATEQ; POOR CQHESIVENESS; PODR TO FAIR ADHESNENESS; TRACE PYRtTE; NO SAMPLE FLUfJRESCENCE; NO HYDRQCARBON INQICATORS PRESENT. SAND (911Q'- 922Q'} = LfGHT GRAY QVERALL WiTH INDiVfDUAL GRAINS DOMINANTLY CLEAR Tt? TRANSLUCENT QUARTZ, MEDlUM T~ DARK GRAY, BLACK; ANGULAR TO SUBANGULAR; MODERATE~Y WEIL SORTED; UNCONSOLIDATED; W{TH TRACE SANDSTONE; MEDIUM TO DARK GRAY; VERY F1NE GRAlN; HAR~; ANGULAR, VERY COARSE, SHATTERED CUTTINGS; NON TO SLIGHTLY CALCAREOUS; TRACE PYRITE; TRACE Bi..ACK CAR80NACE~US MATERIAL; N~ SAMPLE FIUORESCENCE; NO HYdROCARBON !NDlCATORS. CLAYJ SILTSTONE {918d' - 92fi4'} = LtGHT TO MEDiUM GRAY TO L1GHT BROWNISH GRAY; AMORPHOUS, SHAPELESS, GE.~BULAR CUTTINGS; SILTY TO CLAYEY TEXTURE; VERY SOFT AND STICKY; SLIMY T(3 PASTY; DULL TO SLIGHT~Y GREf#SY ~USTER; HYDROPHt~1C; VERY SOLUBLE SLIGHT TO MODERATELY EXPANSNE WHEN HYDRATED; POOR CQHESIVENESS; FAlR TO GOOD ADHESNENESS; TRACE AMOUNTS OF VERY FINE CLEAR QUARTZ GRAINS; NON CALCAREOUS; NO SRMPLE FIUORESCENCE; NO HYDROCARSON INDICATORS. i C~AYI SILTSTONE { 9250' - 9320') = I.I~HT GRAY TO MEDiUM GRAY TO LiGHT BROWNISH GRAY; AMORPHOUS, SHAPELESS, GLOBULAR CUTTINGS; DULL, EARTHY, SLIGHTLY GREABY LUSTER; S{LTY TO CLAYEY TEXTURE; VERY SOFT, STlCKY, SLlMY, PASTZ'; HYDROPHlL1C; VERY SOLUBLE; MODERATELY EXPANSiVE WHEN HYDRATED; POOR COHESIVENESS; FAIR TO ADHEStVENESS; ~CCASiONAL TO C~MMON SILTY SHALE; TRACE AMOUNTS ~F VERY FINE CLEAR QUARTZ GRAINS; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; NO HYQROCARBdN INOfCATORS. CLAYI SILTSTONE ( 9320' - 9390') = LIGHT GRAY TO MEDiUM GRAY TO LiGHT BROWNISH GRAY; AMORPH~US, SNAPELESS, GLOBULAR CUTTtNGS; DULL, EARTHY, SLEGHTLY GREASY LUSTER; SILTY TO CLAYEY TEXTURE; VERY SOFT, STICKY, SLIMY, PASTY; HYDROPHILlC; VERY SOLUBLE; M~DERATELY EXFANSlVE WHEN HYDRATED; P~OR COHESIVENESS; FAIR TO ADHESIVENESS; OCCASIONAL TO COMMON SILTY SHALE, TRRCE AMOUNTS 4F VERY FfNE CLEAR QUARTZ GRAINS; NON CALCAREOUS; NO SAMPLE F~U~RESCENCE; NO HYDROCARBQN INDtGATORS. CLAYISiLTSTONE {9390' - 9450') = LtGHT, MEDIUM, TO MEDIUM DARK GRAY TO LlGHT BROWNISH GRAY; SHAPELESS TO GLOBULAR CUTTtNGS; DULL, E/~RTNY, TO GREASY LUSTER; SILTY TO CLAYEY TEXTURE; VERY MUSITY, PASTY, SLIMY, SOFT CONSISTENCY; VERY SOLUBLE; EXPANSIVE WHEN HYDRATED; OCCASIONAL TO COMMC3N SI~TY SHALE, TRACE AMOUNTS OF CLEAR TO CLOUDY FINE QUARTZ GRAlNS; NQN CALCAREOUS; NO SAMPLE FIUORESCENCE; NO HYDROCARSONS. SILTSTONE {9450 - 9510) = MEDIUM LIGHT GRAY, MEDfUM GRAY, MEDIUM L1GHT BROWNISH GRAY; MQDERATELY STIFF TD MODERATELY SOFT CONSISTENCY; MOSTLY CRUMBLY AND OCCAStONALLY SECTiLE AND BRtTfLE TENACITY; lRREGULAR, PLANER AND SOME BLOCKY ~ FRACTURE; MASSIVE AND Pi..ATY CUTTIN~S HABIT; EARTHY, DULL LUSTER; SILTY, GR17TY, CLAYEY TEXTURE; NO FLUORESCENCE; NO HY~ROCARBON INDICATORS. ~ ~a~H 23 e~~w•~~ Sak River #4 ~ CLAY/CLAYSTONE {9500 - 9560) = LiGHT GRAYiSH BROWN, L1GHT BROWNISH GRAY; LIGHT GRAY; MODERATE SOFT, SOFT, VERY SOFT, STICKY TACKY CQNSISTEtdCY; SOMEWHAT EXPANSIVE WHEN HYDRATED; SOME SLiGHTLY TO VERY SOLUBLE; lRREGULAR TO EARTHY FRACTURE; lVIASSlVE, SOME TASUtAR CUTTlNGS HAS1T; EARTHY, DULL, WA?CY C.USTER; CLAYEY SILTY TEXTURE; TRACE AMOUNT OF VERY FINE GRAIN CLEAR AND FROSTED QUARTZ GRAINS: NON CALCAREOUS; NO FLUORESCENCE; NO HYDROCARBON INDiCATORS PRESENT. SILTST~NE (9580 - 9640) = LIGHT BR~WNISH GRAY, LlGHT GRAYISH BRQWN; LIGNT GRAY; MODERATELY ST3FF TO MODERATELY SOFT CONSISTENCY; M~STLY CRUMSLY AND OCCASIQNALLY SECTILE AND BRITTLE TENACITY; iRREGULAR, PLANER ANQ SQME B~OCKY FRACTURE; MASSNE AND PLATY CUTTlNGS HAB1T; EARTHY, DULL LUSTER; SlLTY, GRITTY, CLAYEY TEXTURE; NO FLUORESCENCE; NO HYDROCARBONS. C~AY/CLAYSTONE (9640 - 9700) = LIGHT GRAYISH BROWN, LIGHT BROWNISH GRAY; ~IGHT GRAY; VERY SOFT, SOFT TO MODERATELY FIRM STICKY TACKY CONSISTENCY; SOMEWHAT EXPANSIVE WHEN HYDRATED; SQME S~IGHTLY TO VERY SO~UBLE; IRREGUl.AR TO EARTHY FRACTUF2E; MASS{VE, S4ME TABUTAR GU7TINGS HAB1T; EARTHY, DUII, WAXY LUSTER; CLAYEY SlLTY TEXTURE; TRACE AMOUNT C?F VERY FtNE GRAtN CLEAR AND FROSTED QUARTZ GRAINS: NON CALCAREQUS; SOME GRADI~JG TO S1~TSTONE; NO FLUORESCENCE; NO HYDROCARBON INDICATORS PRESENT. SILTSTONE {9700 - 9760} = LlGHT BROWNiSH GRAY, LIGHT GRAYISH BROWN; LIGHT GRAY; MC}DERATELY SOFT, MO~ERATE FtRM, FtRM, STIFF GQNSISTENGY; BRtTTLE, GRUNCHY, AND CRUMBLY TENACITY; lRREGULAR, P~ANER AND SOME SLOCKY FRACTURE; MASSiVE AND PLATY CUTTINGS HAB{T; EARTHY DULL, METALLIC LUSTER; SILTY, GRITTY. SlLTSTONE (9800' - 9880') = MEDtUM TO DARK GRAY WiTH MEDiUM GRAYISH BROWN ~ SECONDARY HUES; SOFT TO SLIGHTLY F1RM; IRREGULAR TO WEDGE-LIKE CUTTINGS; SILTY TO CLAYEY TEXTURE; EARTHY LUSTER; MODERATE TO VERY CALCAREOUS; COMMONLY GRADING TO VERY FkRM, DARK GRAY SHALE; TRACE CREAMY WH1TE TO LIGHT GRAY, VKAXY TUFF; VERY FRAGILE; IRREGULAR CUTTINGS; NOTE: CUTTINGS FINELY GR~UND UP FROM PDC BIT ACTION; NO SAMPLE FLUORESCENCE; N4 HYDROCARSON tND1CATORS PRESENT. SHALE { 9850' - 9940') = MEDlUM TO DARK GRAY WITH LIGHT TO MEDIUM BROWN SECONDARY HUES; VERY FIRM TO MODERATELY HARD; SR{TTLE AT TfMES; PLATY TO BLOCKY T0~ OCCASIQNALLY ELONGATED CUTTlNGS; SILTY TO SLIGHTLY GRITTY TEXTURE; EARTHY TO SLtGHTLY WAXY LUSTER WHEN SCORED; PLANAR FRACTURE D~MINANT; NON CA~CAREOUS; TRACE LtGHT GRAY WAXY TUFF; N4 SAMPLE FLUORESCENGE; NO HYDR4CARBON iND1CATORS PRESENT. SHALE (9970' -1004Q'} = MEDIUM GRAY, MEE}tUM DARK GRAY, DARK GRAY W(TH LIGHT MEDlUM BROWN AND MEDiUM BROWN SEC~NDARY HUES; MODERATE~Y FlRM TO MQDERATELY HARD; MO~ERATELY TOUGH T4 BRtTT~E TENAC{TY; BL4CKY, PLATY, ERREGULAR FRACTURE; PLATY, ELONGATED CUTTINGS HABlT; EARTHY, SLIGHTLY WAX`~' LUSTER; SILTY AND SLIGHTLY GRITTY TEXTURE; SLlGHTLY TO M~DERATELY CALCAREOUS; SOME GRAQING TQ SILTSTONE; TRACES OF L{GHT GRAY WAXY TUFF AND VERY LIGHT GRAY MttC}STONE; Nfl SAMPLE FLUORESCENCE; NO HYDROCARBONS INDICATORS PRESENT. SILTSTONE {1 Q050' -10120'} = MEDlUM GRAY TO MEDIUM DARK BROWNlSH GRAY WITH MEDIUM GRAYISH BROWN SECONDARY HUES; MODERATELY SOFT TO SLIGHTLY FIRM; MODERATELY TC7UGH TQ SLIGHTLY MAl~EABLE TENP-CiTY; IRREGULAR, BLOCKY, EARTHY FRACTURE; MASSIVE, W1TH SOM~ PLATY, ELONGATED AND TABULAR CUTTINGS HAB1T; EARTHY LUSTER; SILTY, GRITTY TEXTURE; SLIGHTLY TO MODERATEIY CAICAREOUS; CQMMONLY GRADlNG TO SNALE; NO SAMPLE FLUORESCENCE; N~ HYDROCARSON INDlCATORS PRESENT. ~ ~~ EPC)CH 24 ~~•~~m«.~, Sak River #1 ~ SHRLE {10130' -'10220') = MEDiUM GRAY, MEDtUM DARK GRAY TO MEDIUM DARK BROWNISH GRAY; SLtGHTLY T~ MODERATELY FIRM; SLfGHTLY TOUGH TO BRITTLE TENRCITY; B~OCKY, PLATY, PLANAR, IRREGULAR FRACTURE; ELONGATED TO PLATY CUTTtNGS HABlT; EARTHY, DULL, WAXY LUSTER; SILTY TO SLIGHTLY GRIITY TEXTURE; SUGHTLY T4 MfJQERATELY CALCAREOUS; SLtGHT GRADING TO SlLTSTONE; NO SAMPLE FLUORESCENCE; NO HYDROCARBON iNDiCATORS PRESENT. LIMESTONE (10160 -10200} = OFF WHtTE, LiGHT TANNISH WHITE; VERY SOFT, SOFT; PULVERULENT TENACITY; NO DEFINABLE FRACTURE DE~INIT30N; SPARKLING LUSTER; SUCRQSIG TEXTURE; CRYPTO-CRYSTALLINE; NO SAMPLE FLU4RESCENCE; NO CUT FLUORESCENCE. SHALE (10230' -1 Q280') = MEQIUM GRAY, MEDIUM DARK GRAY, DARK GRAY TO MEDIUM DARK SROWNISH GRAY; SLIGHTLY SOFT TO FIRM HARDNESS; S~IGHT~Y BRITTLE, CRUMBLY, ST1FF TENACITY; fRREGULAR, BLOCKY, PLANAR, EARTHY FRACTURE; MASSIVE, PLATY, ELQNGATEa CUTTINGS HABIT; WAXY, DULL, EARTHY LUSTER; S~IGHTLY SIITY TO S~iGHTLY GRITTY TE~TURE; NON CALCAREOUS; NO CUTTINGS FLUORESCENCE. CLAYICLAYSTONE (9500 - 9560) _~IGHT GRAYISH BROWN, TO MEDiUM LiGHT GRAYISH BROWN; VERY SOFT TO 50FT; MUSITY AND PASTY CONSISTENCY; SLtGHT~Y TO MODERATE EXPANSIVE WHEN HYDRATED; MOSTLY VERY SOLUBLE; iRREGULAR TO EARTHY FRACTURE; MASSIVE CUTTlNGS HABlT; EARTHY, DULL, LUSTER; CIAYEY, Sl~TY, GRITTY TEXTURE; TRACE AMOUNTS OF VERY FtNE GRAIN CLEAR QUARTZ GRAENS AN~ PYRITE; NQN TQ SL[GHTLY CALCAREOUS; SOME GRADING SILTSTONE; NO SAMPLE FLUflRESCENCE; NO HYDROCARBON tNDICAT4RS PRESENT. SAND ( 10370' -10440') = LiGHT BROWNlSH GRAY OVEFtALL FROM CLAYEY SUPPORTING • MATR(X, INDIViDUAL GRAtNS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, TRACE MEDIUM TO DARK GRAY AND BLACK; VERY FINE LOWER TO RARE MEDIUM UPPER, DOMINANTLY VERY FtNE UPPER TO ~INE LOWER; ANGULAR TO SUB-ROUNDED, D4M{NANTLY SUBANGULAR; VERY WELL SORTED; UNCONSOUDATED; NON CALCAREOUS; Na SAMPLE Fl.UORESCENCE; NO HY~ROCARBON INDICATORS. CLAYI SILTSTONE {14380' -10440'} = LIGHT TO MEDIUM GRAYISH BROWN WITH LIGHT BROWN SECQNDARY HUES; VERY SOFT; STSC4CY AT T{MES; SHAPELESS, GLOBULAR CUTTfNGS; SfLTY TO CLAYEY TO SLIGHTLY GRITTY TEXTURE FROM VERY FINE SUSPENDED SANDS; DULL TQ EARTHY LUSTRE; MODERATE TO VERY SOIUBLE; POOR TO FAiR COHESIVENESS; FA1R TO GOOD A~HESIVENESS; GRADING TO VERY FiNE SILTY SANDSTOMEI SANQY SILTSTONE; NO SAMPLE FLUORESCENCE; NO HYDROCARBON lND1CATORS PRESENT. SAND ( 10484' -14540'} = LIGHT BROWNISH GRAY OVERALL WITN IND{VIDU~-L GRAINS DOMlNANT~Y GLEAR TO TRANSLUCENT QUARTZ, TRAGE MEDIUM TO DARK GRAY AND BLACK; VERY FINE LOWER TO FtNE UPPER; VERY WELL SORTED; DOMINANTLY UNCONSOLtDATED WiTH TRAGE VERY FINE, LIGHT GRAY SANDSTONE; VERY HARD; ESTIMATED POOR PQROSlTY AND PERMEASiL1TY; NO SAMPLE FLUORESCENCE; NO FREE OIL; N~ OIL 1NDICATORS PRESENT. SILTSTONE { 10530' -10620'} = MEDIUM TO DARK GRAY WETH MEDIUM GRAYISH BROWN SECONDARY HUES; SQFT TO SLlGHTLY FiRM; lRREGULAR TO WEDGE-LtKE CUTTINGS; StLTY TO CLAYEY TEXTURE; EARTHY LUSTER; MODERRTE TO VERY CALCAREOUS; COMMONLY GRA~ING TO VERY FIRM, DARK GRAY SHALE; TRACE CREAMY WHITE TO LIGHT GRAY, WAXY TUFF; VERY FRAGILE; IRREGULAR CUTTiN~S; TRACE PYRITE NODULES; TRACE VERY COARSE SAND LITHICS; TRACE MiNERAL FLUORESCENCE FROM TUFFS, NO OTHER FLUORESCENCE; NO FREE OtL; NO C}IL lNDtCATfJRS PRESENT. ~ ~ EPOGH 25 ~~~~ Sak River #9 ~ SAND { 1060Q'-10660'} = LIGHT TO MEDIUM BROWN OVERALL FROM CLAYEY SUPPORTitVG MATRIX, INDIVIDUAL GRAINS DOMINANTLY CLEAR T4 TRANSLUCENT QUARTZ, TRACE ME~(UM TO DARK GRAY AND BLACK; VERY FINE LOWER TO RARE MEDIUM UPPER, DOMlNANTLY VERY FINE UPPER T~ F1NE LOWER; ANGULAR TO SUB-ROUNDED, DOMlNANTLY SUBANGULAR; FAIR SORTtNG; UNCONSOLIDATED; NON CALCAREOUS; NO SAMPLE FLUORESCENCE; N~ OIL INDICATORS. SANDSTONE (10670 -1Q700) = VERY LiGHT GRAYISH BROWN T~ LIGHT GRAYISH SROW(V; LOWER VERY FlNE GRAIN, VERY SlLTY; P~ORLY SORTED; SUSANGUlAR, SUB-ROUNDED; MODERATELY SFHERtGlTY; FIRM FRtABLE TQ MOQERATELY HARD; GRA41~d SUPPORTED MtXED WITH SOME CLAY SUPPORT; NON CALCARE~US; NO SAMP~E FLUORESCENCE; NO HYDROCARBONS INDICATORS PRESENT. SIITSTONE (1475U' -10820'} = MED4UIU1 L1GHT GRAY{SH SROWN TO MEDIUM DARK GRAY4SH BROWN; SLiGHTLY FtRM TO MODERATELY HARD GONSiSTENCY; MODERATELY TQUGH, CRUNCHY, BRITTLE TENACITY; IRREGULAR, BLOCKY FRAGTURE; PLATY, OFTEN ELONGATED CUTTINGS HABIT; EARTHY LUSTER; SIITY, GRlTTY, SdME SANDY TEXTURE; NON TO RARELY SL{GHTLY CALCAREOUS; SOME GRADlNG TO SHALE RARELY GRADiNG TO SAND; TRACE ,4M~UNTS OF TUFF AND PYRITE IN SAMPLE; NO SAMPLE FLUtJRESCENCE; NO HYDROCARBON INDICATORS. SHALE (10830 -10870} = MEDlUM GRAYISH BROWN TO MEDiUM DARK BROWNISH GRAY; MODERATELY FIRM TQ MODERATELY HARD CQNSISTENCY; T~UGH, CRUNCHY, BRtTTLE TENACITY; IRREGULAR, BLOCKY, PI.ANAR FF~ACTURE; PLATY, FLAKY, MASSiVE, RARELY EL4NGATED CUTTINGS HABIT; EARTHY LUSTER; SlLTY AND SLIGHTLY GRITTY TEXTURE; TRACE BEING SLIGHTLY TO MODERATELY PYRITiC; NON CALCAREOUS; TRACES OF LIMESTONE. • SHALE {10830' -10870'} = MEDIUM GRAYISH BROWN TO MEDIUM DARK BROWNISH GRAY; MODERATELY FtRM TO MODERATELY HARD CONSlSTENCY; TQUGH, CRUNCHY, BRfTTLE TENACITY; IRREGULAR, BLOCKY, PLANAR FRACTURE; PLATY, FLAKY, MASSIVE, RARELY ELONGATED CUTTINGS HABIT; EARTHY ~USTER; SILTY AND SLIGHTLY GRITTY TEXTURE; TRACE BEING SLIGHTLY TO M~DERATELY PYRITtC; NON CALCAREOUS; TRACES {?F LIMESTONE. SlLTST~NE ('i088t?' -'40950') = MEDIUM LIGHT GRAYtSH BROWN TO MEDlUM QARK GRAYISH BROWN; S~IGHTLY FIRM TO MODERATELY HARD GONSiSTENCY; Mt)DERATELY TOUGH, CRUNCHY, BRfTTLE TENAGITY; IRREGULAR, BLOCK`t FRACTURE; PLATY, OFTEN ELONGATED CUTTINGS HABIT; EARTHY LUSTER; SIlTY, GRITTY, SOME SANDY TEXTURE; NON TO RARELY SLiGHTLY CAtCAREOUS; SOME GRADlNG TO SHA~E RARELY GRADtNG TQ SAND; TRACE AMOUNTS OF TUFF AND PYR{TE {[~{ SAMPLE; N4 SAMPLE FLUC3RESCENCE; t+{4 HYDR4CARSC}N IND{GATORS PRESENT; VERY FlNE CUTTiNGS. SHALE (10980' -11d50') = MEDIUM GRAYISH BROWN TO MED{UM DARK BROWNtSH GRAY, WlTH TRACE AMOUNTS O~ REDDiSH BR~WN; MODERATELY FiRM TO MODERATELY HARD CONSISTENCY; TOUGH, CRUNCHY, BRITTLE TENACfTY; iRREGULAR, BLOCKY, Pi_.ANAR FRRCTURE; PLATY, FLAKY, MASSIVE, RARELY ELONGATED Cl17TINGS HABIT; EARTHY IUSTER; SILTY AND SLIGHTLY GRITTY TEXTURE; TRACE BEING SLIGHTLY TO MODERATELY PYRITIC; NON CALCAREQUS; TRACES QF LIMESTQNE; NO SAMPLE FLU~RESCENCE; NO HYDROCARSON INDICATORS PRESENT. • ~~ EPCJCH 2~ ~~~*~^ SakRiver#1 SHA~E {11050' -11120') = MEDIUM GRAYISH BROWN TO ME~IUM DARK REDDlSH SROWN; ~ MODERATELY FtRM TO MODERATELY HARD CONSISTENCY; TOUGH, CRUNCHY, BRITTLE TENACiTY; 1RREGULAR, BLOCKY, PLANAR FRACTURE; PLATY, FLAKY, MASSiVE, RARELY ELONGATED CUTTINGS HABIT; EARTHY LUSTER; SILTY AND SLfGHTLY GRiTTY TEXTURE; TRACE BEING SLIGHTLY TO MODERATELY PYRITiC; NON CALCARE~US; TRACES OF LIMESTONE; N4 SAMPLE FLUORESCENCE; Nfl HYDROCARBON iNDlCAT~RS PRESENT. SHALE I SILTSTQNE (11120' -11180') = MEDIUM DARK REDDISH BRQWN, MEDIUM REDDISH SROWN TO MEDlUM GRAYISH SROWN; MODERATELY FlRM TO MODERATELY HARD CONSISTENCY; MODERATELY TOUGH, CRUNCHY, BRIT7"LE TENAC(TY; ERREGULAR, BLOCKY, PLANAR FRACTURE; PLATY, FLAKY, RARELY ELQNGATED CUTTINGS HABIT; EARTHY LUSTER; Sl~TY AND SMDOTH TEXTURE; ~FTEN SLIGHTLY VERY FINELY MICAEOUS; NON CA~CAREOUS; NO SAMPLE FLUQRESCENCE; NO HYQROCARBQN lN~ICATORS PRESENT. SANDI SANDSTONE (1118Q' -11270'} = LIGHT GRAY WITH iNDtVIDUAL GRAiNS DOMtNANTLY CLEAR TQ TRANSLUCENT QUARTZ, MEDIUM 70 DARK GftAY, BLACK AND WHiTE; VERY F1NE LOWER TO FINE UPPER; SUBANGULAR TO SUB-tZOUNDED; VERY WELt SORTED; UNC(?NSOLlDATED; TRACE LIGHT GRA,Y SRNDSTONE; VERY FlNE GRAlN; HARD; WEDGE-LIKE; GRITTY TEXTURE; SPARKLING TO METALLIC LUSTER; NON-CA~CAREOUS; PRESENT lN TRACE AMOUNTS IN DOMINANTLY ME~tUM TO DARK BROWN SHA~E AND SILTSTONE; TRACE PYRtTE; NO SAMPLE FIUORESCENCE; NO FREE Ot~; NO O!L INDICATORS PRESENT. SILTSTONE! CLAYSTONE (11250' -11340') = DOMiNANTLY MED[UM TO [}ARK BROWN WITH TRACE LlGHT BROWN; VERY SOFT TO MODERATELY FIRM TO HARD; IRREGULAR TO SLIGHTLY BLOCKY AND PLATY; SILTY TO CLAYEY TEXTURE; EARTHY LUSTER; MODERATELY SOLUBLE; NON TO SLIGHTLY EXPANSIVE WHEN HYDRATED; FAfR COHESIVENESS; POOR TO FAtR AdHESiVENESS; NON CALCAREOUS; MEDlUM BROWN SILTSTONE COMMflNLY GRADiNG TO ~ VERY FINE SANDSTONE; FRAGILE AND BRtTTLE, VERY WELL SORTED; TRACE PYRiTE NQDULES; NO SAMPLE FLUORESCENCE; NO CUT QR CUT F~UORESCENCE; NO OIL iNDICATORS PRESENT. SHALE/ SlLTSTONE (11320' -11410') = MEDIUM TO DARK BROWN TO BROWNISH GRAY WITH LIGHT BROWN SEC~NDARY HUES; SOFT TO MODERATELY FIRM TO HRRQ; lRREGULAR TO PLATY AN~ BLOCKY CUTTINGS; SILTY TO SLIGHTLY GRITTY TEXTURE; EARTHY LUSTER; IRREGULAR FRACTURE DOM(NANT WITH SOME PLANAR FRACTURE; NON CALCARE4US; TRACE LQ4SE, VERY FiNE SAND GRAfNS; TRACE PYRITE NfJDULES; TRACE SHELL FRAGMENTS; TRACE VERY HARD SANDSTONE PIECES; NO SAMPLE FLUORESCENCE; NO CUT OR CUT FLUORESCENCE; NO OIL INDICATORS PRESENT. SHALE I SILTSTONE (1142{3' -11500') = MEDIUM GRAYfSH BROWPI, MEDIUM DARK SROWNISH GRAY TQ MED{UM BROWNISH GRAY; MODERATELY SOFT TQ MODERATELY FIRM WITH RARE MODERATELY HARD CONSISTENCY; MODERATELY T~UGH, CRUNCHY, BRITT~E TENRCITY; lRREGU~AR, BLOCKY, PLANAR FRACTURE; PLATY, FEAKY, RARELY ELONGATED CUTTINGS HABIT; EARTHY LUSTER; SILTY AND SMOOTH TEXTURE; OFTEN SLIGHTLY VERY FINELY MICAEOUS; NON CALCAREOUS; HEAVY TRACE AMDUNTS OF UNCONSOLlDATED L4WER VERY FiNE GRAiN CLEAR FROSTED QUARTZ; NO SANiPLE FLUORESCENCE; NO CUT FLUt7RESCENCE; NO HYDR~GARBON INDICATORS PRESENT. SHALE 1 StLTSTQNE {'R'!5'!Q' -'! 159Q') = MEDtUM GRAYISH 8R~V1rN, TO MEDtUM DARK GRAYtSH BRQWN; MEDIUM BROWNISH GRAY; MODERATELY SOFT TO MODERATELY ~IRM WlTH RARE MODERATELY HARD CONSISTENCY; MODERATELY TQUGH, CRUNCHY, BRITTLE TENAGtTY; IRREGULAR, BLOCKY, PLANAR ~RACTURE; PLATY, FLAKY, CUTTINGS HABIT; EARTHY ~USTER; S1LTY, GRITTY AND SMOOTH TEXTURE; NON CALCAREOUS TO SLIGHTLY CALCAREQUS; HEAVY TRACE AMOUNTS OF UNCONSOLlDATEQ SAND, LOWER VERY FINE GRAIN, CLEAR • FROSTED; TRACE AMDUNTS OF GLAUCONITE AND L1GHT GREEN GLAY; NO MiNERAL FLUORESCENCE; NO CUT FLUORESCENCE; NO HYDROCARBQN INQlCATORS PRESENT. ~ EPOCH 27 ~~~~ Sak River #1 ~ SAND (11600' -11670') = CLEAR TO TRANSLUCENT QUARTZ, MEDlUM TO DARK GRAY T~ BLACK, TRACE DARK BLUfSH GREEN; VERY FINE LOWER TQ FINE UPPER; SUBANGULAR TO SUB- ROU~IDED; VERY WELL SORTED; UNCONSOLIDATED; TRACE GLAUC~NlTE; SAND PRESENT AS LOOSE GRAlNS {N DOMINANTLY SILTSTONE/CLAYSTONE FORMATI~N; NQ SAMPLE FLUORESCENCE; N~ CUT ~R CUT FLUORESCENCE; NO O!L INDICAT~RS PRESENT. SHALE/ SELTSTONE (1164Q' -11730"} = MEDIUM TO DARK BROWN TO BR01tVNiSH GRAY WITH LIGHT GRAY SECONDARY HUES; SOFT T~ MODERATELY ~IRM TO HARD; lRREGULAR Tl? PLATY AND BLOCKY CUTTINGS; SlLTY TO SLlGHTIY GRlTTY TEXTURE; EARTHY ~USTRE; IRREGULAR FRACTtSRE DOVVifNANT VifiTH SOME PLAidAR FRACTURE; NON CALCAREQUS; NdTE ADDING LUBRICATING BEADS TO MUD SYSTEM, TRACE TO 30% OF SAMPLE; RARE TRACE IOOSE SAND; VERY FINE; DOMINANTLY CLEAR QUARTZ NQ SAMPLE FLUORESCENCE; NQ CUT OR GUT FLUC)RESGENGE; NQ Q!L !NQlCATORS PRESENT. SANDSTONEI SAND (11720'-11800`} = ~IGHT GRAY TO ~fGHT BROWN WiTH lNDIVfDUAL LiTHiCS DOMINANTLY CLEAR TO TRANSLUCENT QUARTZ, TRACE DARK BLUiSH GREEN GLAUCONITE AND PYRiTE; VERY F{NE LOWER TO FIME LOWER, OCCASIONALLY GRAdtNG TO COARSE SILT; SUB-ANGULAR TO SUB-ROUNDED; VERY WELL SORTED; NQ TQ SLIGHT CALCAREOUS CEMENT; FIRM TO MODERATELY HARD; BRITTIE AT TIMES; DOMINANTLY LOQSE SAND GRAiNS; 10°l0 - 30°lo DULL YELLOW FLUORESCENCE; NO ODOR; NO FFtEE flEL; NO ViSi$LE CUT; VERY SLOW, 3-8 MINUTES FOR A VERY PALE, MI~KY YELLOW CUT FLUOR; VERY PQOR Oll. 1NDlCATORS. SHALE/ Si~TSTONE {31640' -11730') = MEDIUM TO DARK BROWN TO BROWNISH GRAY AND I.IGHT GRAY TO GRAYISH BROWN; SOFT TO MODERATELY ~tRM TQ HARD; IRREGULAR TO PLATY AND BLOCKY CUTTINGS; SiLTY TO SLIGHTLY GRITTY TEXTURE; EARTHY LUSTER; 1RREGUl.AR FRACTURE DOMINANT WITN SOME PLANAR FRACTURE; NON CALCAREOUS; ~ TRACE PYRiTE; ABUNDANT LUBRiCATING BEADS AND NUT PLUG EN 'E 1840` SAMPLE; TRACE TO 10% PINPOiNT YELLOW FLUORESCENCE; NO CUT OR CUT FLUORESCENCE; NO OiL INDiCATORS. SHALE 1 SIL7STONE (11890' -11970') = MEDIUM TO DARK GRAYISH BRflWN; MEDIUM BROWNISH GRRY; SOFT T~ MODERATELY FiRM; SOME HARD C~NSESTENCY; t~lODERATELY TOUGH, TQ BRITTLE TENACITY; IRREGULAR, BLOCKY FRACTURE; P~ATY, SOME MASSiVE CUTTINGS HABIT; EARTHY, MODERATELY DULL LUSTER; MODERATELY SMOOTH, SLIGHTLY SI~TY TO SIIGHTI.Y GRITTY TEXTURE; NON TQ SLIGHTLY CALCAREt}US; TRACE SCATTERED PYRITE; ~t0 FLUORESCENCE; NO HYDROCARBON iNDiCATORS PRESENT iN CUT7'iNG. SANDSTONE/ SAND (11930'-1205Q'j = LIGHT GRRY TO VERY LIGHT GRAY WITH INDIVtDUAL LITHlCS OF CLEAR TO TRANSLUCENT QUARTZ, SLlGHT TRACE AMOUNTS OF GLAUCONITE AND PYRITE; VERY FtNE LOWER TO FINE LOWER, OCCASIONALLY GRADING TO SILTSTONE; MODERATELY SORTED; SUB-ANGULAR TO SU8-ROUNDED; MODERATE SPHERICITY; SOME FR~STED SURFACE FEATURES; PREDOMINATELY UNCONS~LIDATED; SMAE.LER AMOUNTS OF EASY FRIABLE TO FRIABLE; TRACES OF DULL YELLOW PIN POiNT FLUORE~CENCE; NO ODUR SUT HAS A VERY SL~W AND VERY PAIE YELLOW CUT FLUC3RESCENCE. SANDSTONE/ SAND (12080'-12110') = LIGHT GRAY TO VERY L1GHT GRAY W1TH INDIVIDUAL LITHICS OF CLEAR TO TRAN5LUCENT QUARTZ, HEAW TRACE AM~UNTS O~ PYRITE; LOWER VERY FiNE RND UPPER VERY FlNE GRAlN ANQ ~FTEN GRAQtNG TQ StLT AND StLTSTONE; WELL AND MODERATELY SORTED; SUB-ANGULAR TO SUB-ROUNDED; SOME FROSTED SURFACE FEATURES; PREDOMfNATELY EASY FRfABLE TO FRtABLE, SOME SOFT OFTEN UNCONSOLIDATED; TRACES OF DULL YELLOW PIN POINT FLUORESCENCE; NO ODQR OR VISIBLE OIL; POSSISLE LIGHT STAINING; SAND GIVES A MODERATELY FAST TO SL4W MODERATELY DULL YELLOW CUT FLUORESCENCE. C~ ~ EPtJCH 28 ~~~~~ Sak River #1 ~ SANDSTONEI SAND (1211fl'-12980') = LIGHT GRAY T~ VERY LIGHT GRRY WITH {NDIVIDUAL UTHICS OF CLEAR TO TRANSLUCENT QUARTZ, HEAVY TRACE AM~UNTS OF PYRfTE; L4WER VERY FlNE AND UPPER VERY FINE GRAIN AND OFTEN GRADING TO SILT AND SILTSTONE; WELL AND MODERATEIY SORTED; SUS-ANGULAR TO SUS-R~UhIDED; SOME ~ROSTED SURFACE FEATURES; PREDOMINATELY EASY FRIABLE TO FRIABLE, SOME SOFT OFTEN UNCONSOLIDATED; TRACES OF DULL YELLOW PIN POINT FLU4RESCENCE; NO ODOR OR V{S{BLE OfL; PflSSiBLE LfGHT STAfNtNG, SANd GfVES A M~QERATE~Y FAST TO SLOW MODERATELY DULL YELLOW CUT FLUQRESCENCE. SANDSTONEI SAND (12180'-12250') = LIGHT GRAY TO VERY ~IGHT GRAY WiTH fNDIV(DUAL LITH{CS OF CLEAR T~ TRANSLUCENT QUARTZ, TRACE AMOUNTS OF PYRITE; LOWER VERY FINE GRAIN AND UPPER VERY FINE GRAIN AND OFTEN GRADING TO SILT AND SI~TSTONE; WELL AND MODERATELY SORTED; SUB ANGULAR TQ SUB-ROUNDED; SOME FRQSTED SURFACE FEATURES; PREDOMlNATELY FiRM FRIASLE TO BRITTLE; NON CALCAREOUS; NO TQ TRACE DULL YEL~OW PINPOINT FLUORESCENCE; NO FREE C}[~; r~o oao~; NO VISIBLE GUT OR CUT FLUOR NO TO VERY POOR OIL INDICATORS. SHALE! S{LTST4NE ('12250' -1234fl'} = MEDtUM TO DARK BRQVIIN TQ BRQV1lNlSH GRAY AND IIGHT GRAY TO GRAYISH BROWN; SOFT TO MODERATE~Y FIRM TO HARD; IRREGUI.AR TO PLATY AND BL~CKY CUTTINGS; SILTY TO SLIGHTLY GRiTTY TEXTUFtE; EARTHY LUSTER; IRREGULAR FRACTURE DOMINANT WITH SOME PLANAR FRACTURE; NON CALCAREOUS; TRACE I.O~SE SAND GRAINS, DOMINANTLY VERY F1NE CLEAR QUARTZ; SILTSTONE COMMONLY GRADING TQ VERY FtNE, StLTY SANDSTONE; NO SAMPLE FLUORESCENCE, NO CUT OR CUT FLUORESCENCE. SANDSTONEI SAND ('l2340'-12390') _~tGHT GRAY TO VERY L1GHT GRAY WlTt-1 !NDlVIDUAL LITHICS OF CLEAR Tfl TRANS~.UCENT QUARTZ; TRACE AMi~UNTS QF PYRITE; LOWER VERY ~ FiNE GRAtN AND UPPER VERY FINE GRAiN AND OFTEN GRADENG TO SI~T AND SILTSTONE; WELL A1VD MODERATELY SORTED; SUS-ANGULAR TO SUS-3~OUNDED; SOME FROSTED SURFACE FEATURES; PREDOMINATELY FIRM FRiABLE TO BRETTLE; N{7N CALCAREOUS; NO TO TRACE DULL YELLOW PINP~INT FLUURESCENCE; NO FREE QlL; NO ODOR; NO ViSIBLE CUT OR CUT FLUORESCENCE; NO TO VERY POOR OIL INDlCATURS. SHALE/ SILTSTONE (12390' -12460') = MEDIUM TO DARK BFtOWN TO BROWNISH GRAY AND LIGHT GRAY TO GRAYISH BROWN; SOFT TO MODEFtATELY FIRM TO HARD; IRREGULAR TO PLATY AND BLOCKY CUTTiNGS HABIT; StLTY TO SLIGHTLY GRETTY TEXTURE; EARTHY LUSTER; lRREGt1LAR FRACTURE DOIVIiNANT WITH SC?ME PLP~NAR FRACTURE; NON GALCAR~~US; TRACE LQOSE SAND GRAINS, DfJMtNANTLY VERY FINE CLEAR QUARTZ; SILTSTONE COMMON~Y GRADlNG T~ VERY F1NE, SlLTY SANdSTOldE; NO SAMPLE FLUORESCENCE; NQ CUT aR CUT FLUQRESCENCE. SANDSTONEI SAND (12460'-12530'} = LIGHT GRAY T~ VERY IIGHT CRAY WITH INDIVIDUA~ GRAINS OF GLEAR TO TRANSLUCENT QUARTZ; LQWER VERY FtNE GRA(N RND UPPER VERY FINE GRAIN AND ~FTEN GRADING TO SILTST~NE; M~DERATELY S~RTED; SUB-ANGULAR TO SUB-ROUNDED; SOME FROSTED SURFACE ASRASlON; PREDOMINANTLY FRIABLE TO FIRM FRfABLE TO BRiTTl.E; NON CALCAREQUS; N~ TO TRACE DULL YELL~W PtNP01NT FLU~RESCENCE; NO ~REE OIL; NQ ODOR; NO VISIBLE GUT QR CUT FIUQR; NO TO VERY POOR OIL INQICATORS. SHALE/ SILTSTONE {12530' -12600') = MEDIUM TO DARK BROWN TO BROWNISH GRAY AIVD LIGHT GRAY TO GRAY{SH BROWN; SOFT TO MODERATELY FiRM TO HAR~, OCCASION~lLLY VERY SOFT AND PASTY LIKE CLAYSTOAIE; PLATY AND BLOCKY CUTTINGS HABIT; SILTY TO SLIGHTLY GRiTTY TO GRITTY TEXTURE; ERRTHY LUSTER; IRREGULAR FRACTURE DOMINANT WITH SOME PLANAR FRACTURE; NON CALCAREOUS; TRACE L44SE SAND GRAINS, . DOMINANTLY VERY FiNE CLEAR QUARTZ; SILTSTONE COMMONLY GRADING TO VERY FINE, SfLTY SRNDSTONE; NO SAMPLE FLUORESCENCE; NO CUT QR CUT FLU~RESCENCE. ~ EPOCH 29 ~+~~^~ Sak River #1 ~ SANDSTONE! SAND {1260~'-126$0'} = LIGHT GRAY TO VERY LiGHT GRAY WITH INDIVIDUAL GRA{NS OF CLEAR TO TRANSLUCENT QUARTZ; L4WER VERY FfNE GRAfN AND UPPER VERY FiNE GRAlNED AND OFTEN GRADING TO SILTSTONE; MODERATELY SORTED; SUB-ANGULAR TO SUB-RUUNDED; SOME FROSTED SURFACE ~4BRASION; PREDOMlNANTLY FRIABLE TO FIRM FRIABLE TO BRlTTLE; NON TO VERY SUGHTLY CALCAREOUS; TRACE DULL YELLOW PINPOiNT FLUORESCENCE; NO FREE OIL; NO ODOR; ~AINT YELL0IN-GREEN MINERAL FLUQRESCENGE; FAINT TO MODERATE YELLOW CUT FLUORESCENCE. SHALEI SILTSTONE (12680" -1276Q'} = MEDIUM TO DARK SRUWN TO SROWi~11SH GRAY AND UGHT GRAY TO GRAYISH BR4WN; SOFT TO MODERATELY FIRM T£} HARD, 4CCAS(QNALLY VERY SaFT AN~ PASTY LIKE CtAYSTONE; PLATY AND BLOCKY CUTTINGS HABIT; SILTY TO SLIGHTLY GRtTTY TO GRITTY TEXTURE; EARTHY LUSTER; IRREGULAR FRACTURE DOMINANT WITH S~ME PLANAR FRACTURE; NON-CALCARE(JUS; TRACE L40SE SAN~ GRAtNS, DOMINANTLY VERY FlNE CLEAR QUARTZ; SILTSTONE COMMON~Y GRADING T~ VERY FINE, SiLTY SANDSTONE; TRACE YELL(JW-GREEN SAMPLE FLU~RESCENCE; NO GUT OR CE1T FLUORESCENCE. SHALEI StI.TSTONE (1276{l' -12840'} = MEDtUM TO DARK BRQWN TQ BR4WNlSH GRAY RND LIGHT GRAY TO GRAYISH BROWN; SOFT TO M4DERATE~Y FIRM TO HARD, OCCASiONALLY VERY SOFT AND PA5TY LIKE CLAYSTONE; PLATY AND B~OCKY CUTTINGS HABIT; SILTY TO SLIGHTLY GRITTY TO GRITTY TEXTURE; EARTHY LUSTER; IRREGULAR FRACTURE DOMINANT WITH SOME PLANAR FRACTURE; NON CALCAREOUS; TRACE LOOSE SAND GRAlNS, DOMINANTLY VERY FINE CLE~4R QUARTZ; StLTSTONE COMM~NLY GRADING T(J VERY FINE, S1LTY SANDSTONE; TRACE SAMPLE FLUORESCENCE; NO CUT OR CUT FLUORESCENCE. SANDSTONE/ SAND (12840'-12910') = LiGHT GRAY TO VERY LiGHT GRAY WITH INQIVlDUAL GRAtNS OF CtEAR TO TRANSLUCENT QUARTZ; 10°Io OF SAMPLE ALMOST Wt-{iTE; L4WER VERY . FINE GRAIN AND UPPER VERY FINE GRAINED, OCCASiONAL SILT StZED GRAINS; MODERATELY S4RTED; SUS-ANGULAR TO SU8-ROUNDED; SOME FROSTED SURFACE ABRASION; PREDOMINANTLY FRIABLE TQ FiRM FRIABLE TO BRITfLE; NON T~ VERY SLI CALCAREOUS; ND TO TRACE DULL YELLOW PlNPOtNT ~LUOR; NO FREE OtL; NO ODOR; NO VISlBLE CUT OR CUT FLU~RESCENCE; NO TO VERY POOR OIL tNDICATORS. SANDSTONE/ SAND {12910'-12990') = LlGHT GRAY T~ VERY LIGHT GRAY WITH 1NDIVIDUAL GRAINS OF CLEAR TO TRANSLUCENT QUARTZ; 10% OF SAMPLE ALMOST WHITE; LOWER VERY FINE GRAtN AND UPPER YERY FtNE GRAINED, OGCAStONAL SiLT SIZED GRA{NS, THSN tNTER- BEDS WITH SlLTSTONE AND SHALE; MODERATELY SORTED; SUS-ANGULAR TO SUB-ROUNDED; SOME FROSTED SURFACE ABRASION; PREDOMtNANTtY FRlABLE TO FIRM FRIABLE TO BRiTTLE; NON TO VERY SLIGHTLY CALCAREOUS; Na TO TRACE DULL YELLOW PlNPOINT FLU~R; NO FREE OiL; NQ ODOR; NO VISlBLE OR Sl~LVENT CUT FLUORESCENCE; NO TO VERY POOR QIL lNDICATORS. SILTSTQNE (129~-13Q60') = LlGHT TO MEDIUM GRAY TU BROWNISH GRAY QCCAStONAE.LY GRAYISH BROWN MODERATELY FIRM T~ HARD; DOMINANT 7ABULAR TO BLOCKY CUTTINGS HABIT; S4LTY TO GRITTY TEXT; DaMlNANT lRR~GU~AR FRACTURE; SLIGHTLY CALCAREOUS TRACE CALCITE; ABUNDANT LOOSE SAND GRAINS, DOMtNANTLY VERY FiNE CLEAR T4 FROSTED QUARTZ; OCCASiONALLY LARGE LITHIC CLASTS E1UfSEDDED 1N CUTTINGS; C~MMONLY GRADtNG T~ VERY FINE SILTY SAfVdSTONE; TRACE YELLO~/V-GREEN SAMPLE FLUORESCENCE; NQ ~IL ODOR; TRACE ~ERY WEAK, SLOViI, YE~L4W SOLVENT CUT FLUORESCENCE, POOR Ol~ INDICATORS. i ~~ EP4CH 3° ~~~~ Sak Riuer #1 SHA~E {13060-9319i3) = DARK GRAY TO GRAYISH BIACK WiTH OCCAStONAt OF aARK ~ YELLOWISH BROWN; FIRM DOMINANTLY ELONGATED OCCAStONALLY SPUNTERY CUTTINGS HA81T; BRITT'~E TO CRUNCHY TENACITY; DOMlNANT SPLINTERY TO P~ANAR FRACTURE; GREASY TO WAXY LUSTER; DflMINANTLY SILTY TC3 GR4TTY (3CCAS{flNALLY S4V{OflTH TEXTURE; LAMlNAE PRESENT 4CCASIONALLY WITH VERY FINE SAND GRAtN LAYERS; TRACE MiNERAL FIUORESCENCE; WEAK YELLOW WHITE STREAM FLU~RESCENCE. ~ r~ ~.J ~~ ~~~H 31 ~~~~^ Sak River#1 ~ 3.2. CORE DESCRIPTIONS No cores were taken for this well. ~ 3.3. SHt}W REPORTS No shows were reported for #his well. 3.4. SAflAPLtIVG PROGRAM A1VD DtSTR1BUTlOtV ~~ ~ Type and Purpase tntervat Frequency Distribution Washed, scr~ned & dried 30' Broaks Range Petrafeum A Dry Samples 350' -13,910' (md} ~p' as deili ra#e allowed in zones of interest g Washed, screened & dried Dry Samples 350' -'43,110' ~~d~ 30' 1Q" as drilf rate allowed A~GCC 333 West 7~' Avenue, Suite 1QQ Anchorage, AK. 99501 in zones of 907-279-1433 interest ~~ EPOCH 32 r ~~~*~~«~^ Sak River #1 ~ 4. DRILLlNG DATA 4_1. DAJLYAGTJVITY SUMMARY 3/16/2007; SEGIN MUD~OGGING SERV(CE ~ 350 FEET. 3J17l2d07: DR4LLE~ TO 392', FLOW LINE PACKED OFF, PULLED 4UT OF HO~E TO CLEAR FLOW LINE; CLEANED FLOW LINE; TRIP IN HOLE, DR(LL TO 547 AT REPQRT TIME. 311$t2007: DRILL FROM 547 TO 2482. 3119/2007: DRfLL FROM 2482 TO 4036, WtPER TRIP FQR GASiNG RUN. 3J20/2007: FtNISH WIPER TRIP QUT FOR CASING RUN; TRtP IN, CIRCULATE, TREP GAS 28 UNlTS, TRlP OUT; BEGIN CASING RUN. 312112007: CONTINUE CASlNG RUN. CEMENT IN PLAGE. BEGtN NIPPLE DOWN DlVERTER. 3/2212007: NIPPLE UP BOPS, TEST SdPS. 3123i2007: FINISHED TESTING BOPs; PtCK UP DRlL~ PIPE; MAKE UP BHA. 3/2412047: DRIL~ TO 4269. 3125/2d07: PUMP SWEEP, DRlLL AHEAD TO 6480'. 3i26I2007: DRIIL FROM 6480' TO 7817' A TOTAL OF 133T. 3i2712007: DRILL FROM 7817' TO 9320" A TOTAL OF 1503'. ~ 3/28/2Q07: DRILL AHEADTO 9800', PULLED 22 STANDS FOR WRSHOUT, DRILL RHEAD FROM 9840' - 9963', RIG REPAIR. 3/29l2007: DRILLED AHEAD TO 90685', PULLED 14 STANDS FOR WASHOUT, DRfLLED AHEAD TO 10690', RtG REPAIR, NOTE; MAXIMUtUI GAS OF 179 UNtTS FRQM SAND @ 10480' -10530'. 3130l2807: RtG REPAtR, DRILLED AHEAD 10685' -10876' AND CIRCULATED H4LE CLEAN, POOH TO 108', FINISH ~D BHA. 3131/2007: FINISH TRIP OUT, TEST BUPs; TRIP IN TO 4070 AND TEST MWD TOOtS; CONTINUE TRIP 1N HOLE; REAMiNG TO 80TTOM AT REPORT T1ME. 4/1/2007: DRILLING AND SLIDItVG FROM 10876' TO 11436'. PUMPED PILLS (?F G~,4SS BEADS AND NUT PLUG TO AID SL{DING. 4t212007: ~RILLING AND S~IDING FROM 11436' TQ 11883'. 4/312007: DRI~~ FROM 11883' T~ 13110'. CtRCUTATE BOTTOMS UP. SHORT TRIP. 4I4/2007: DRiLLED AHEAD TO '! 3,(~2'; CIRCULATED, MADE REPAIRS TQ #1 PUMP, DR1LL AHEAD TO 13,114'; SHORT TRIP TO 9010', WASH AND REAM TO BOTTOM AT TtGHT SPOTS, CIRCULATE AND PUMP H1 VIS SWEEPS TO CtEAN HOLE, PUMP SLUG AND POOH. 4i512007: POOH, BREAK AND LAY DOWN BHA, RIG UP WIRELINE TOOLS, RIH WITH WIRELINE, BEGIN LOGGiNG. 4/6/2007: COMPLETE W1RELiNE LOGGING RUNS, LAY DOWN HWP, P1CK UP & RIG UP CEMENT HEAD. L~ ~~ EPO~H 33 ~ 4.2. SURVEY RECC'}RD Survey Survey Survey Depth Inctination Aaimuth {ft) {degj (deg} 288.27 0.44 106.74 379.57 0.50 102.32 469.41 0.59 95.32 ~59.00 1, 92 60.75 654.41 4.38 50.45 746.98 6.33 47.24 842.57 9.64 45.26 926.34 15.59 45.76 1, 032.72 9 7.76 45.48 1,127.66 19.20 44.49 1,223.42 20.22 44.16 1,318.07 23.92 47.39 1,411.49 29.33 49.26 1, 505.39 29.89 50.53 1,604.73 28.44 49.77 1,694.58 29.36 49.53 1, 788.61 29. Q0 4924 ~ 1,8$3.63 34.91 47.D6 1,978.28 34.52 45.93 2,Q72.45 36.Q7 45.b1 2,167.81 39.84 46.69 2,261.64 39.83 44.9Q 2, 354.33 39.86 44.08 2,450.67 39.66 43.87 2,545.52 37.37 44.46 2,641.46 37.12 44.21 2,736.70 37.16 44.43 2,830.'f 4 37.00 44.16 2,925.07 36.88 45.00 3, 0'i 9.71 38.96 44.88 3,114.41 39.93 45.02 3,209.76 39.43 45.09 3,302.47 38.37 45.78 3,395.42 38.67 45.43 3,489.96 38.49 45.52 3, 585.36 38.12 45.58 3,679.10 38.32 45.50 3,774. fi 8 38.74 45.59 1'~'"1 \_J Sak River #1 NIS EMI Vertical Dog Leg ND Departure Departure Sec Severity (ft) {ftj {ft) (ft} (dphf~ 288.27 -0.32 1.05 0.61 0.15 379.56 -0.50 1.77 1.Q5 0.08 469.40 -Q.63 2.62 '! .62 Q.12 558.97 0.06 4.39 3.42 1.64 65023 3.43 8.41 8.41 2.75 746.38 8.99 15.16 17.42 2.04 841.03 18.24 24.72 30.65 3.47 922.74 31.00 37.77 48.87 7.1 'I 1, 024.64 52.36 59.59 79.29 2.04 1,114.68 73.65 80.86 1 Q9.25 1.55 1,2d4.$3 96.76 103.42 141.36 1.07 1,292.53 121.49 128.94 176.79 4.12 1,376A2 149.27 160.24 218.61 5.86 1, 457.66 179.15 9 95.73 26v.40 0.94 1, 540.91 208.91 231.4Q 311.46 1.57 1,623.07 23828 265.97 356.81 (}.99 1,705.16 268.12 30Q.77 402.65 0.41 1, 785.75 30 3.71 338.16 452. 87 6.34 1,863.55 338.82 377.26 5~.65 a.$a 1,94Q.41 376.$Q 416.21 56Q.87 1.66 2, 415.59 417.44 458.47 619.34 4.03 2,487.65 459.34 501.55 679.23 1.22 2, 9 58.82 5Q1.7d 5~3.17 738.30 0.56 2,232.88 546.04 585.95 799.53 0.25 2,307.09 5$8.41 627.10 858.24 2.44 2, 383.47 629.94 667.68 915.97 0.30 2,459.39 671.08 707.85 873.15 0.'!5 2,533.93 711.41 747.19 1,029.17 0.25 2,609.80 752.05 787.24 1,C}85.93 0.55 2,6$4.45 793.23 828.32 1,143.$2 2.20 2,757.58 835.81 870.82 1,203.72 1.03 2, 830. ~ 878.82 913. 92 1, 264. 33 0.54 2,903.11 919.67 955.39 1,322.33 1.23 2,975.84 ~0.18 996.75 1,380A1 0.40 3,t}49.74 1,001.52 1,(138.78 1,438.75 0.20 3,124.6Q 1, 042.93 1, 081.00 1,497.67 0.39 3,19824 1,083.55 9 ,122.39 'f ,555.46 0.22 3,272.62 1,125.03 1,164.67 1,614.47 0.44 ~~ EPtJ~H 34 Sak River #1 Survey Survey Survey N/S ENV Verticai Dog Leg ~ Depth inclination Azimuth ND Departure ~eparEure Sec Severity (ft} (deg~ {deg) (ft) (ft) (ft} (ft} {dphf} 3,868.37 38.78 45.24 3,346.07 '! ,166.42 1,206.67 1,673.21 0.24 3,959.57 39.Q6 45.61 3,417.03 1,2Q6.63 1,247.48 1,73029 Q.40 4,Q50.44 39.54 45.09 3,487.35 1,247.Q8 1,2$8.43 4,787.62 Q.64 4,145.04 39.74 4429 3, 560.20 1, 289. 98 1, 330.87 1, 847.67 0. 58 4,239.10 39.42 44.59 3,632.69 1,332.77 1,372.83 1,907.27 0.40 4,335.28 38.59 44.11 3,707.43 1,376.~ 1,495.15 'f,967.47 0.92 4,428.87 37.51 44.89 3,781.13 1,4"f7.20 1,455.57 2,f324.84 1.27 4,523.59 36.66 45.Q5 3,856.70 1,457.61 9,495.93 2,081.69 0.90 4,69 8.30 36.32 46.70 3,932.84 1,496.82 1,536.36 2,137.83 1.10 4, 7'f 3.10 35.80 48.59 4, OQ9.48 1, 534.42 1, 577.59 2,193.57 1.30 4,808.42 35.54 48.44 4,086.92 1,571.24 1,619.23 2,249.12 Q.29 4,902.79 36.07 48.39 4,163.45 1,607.88 1,66Q.52 2,3Q4.29 0.57 4,998.16 37.74 48.43 4,239.70 1,645.90 1,703.36 2,361.53 1.75 5,093.44 38.66 49.50 4,314.58 1,684.57 1,747.81 2,420.43 1.18 5,189.45 38.38 47.38 4, 389.70 1, 724.24 1, 792. 54 2, 480.18 1.41 5,283.92 37.01 45.43 4,464.46 1,764.05 1,834.38 2,537.80 1.92 5,37$.98 35.70 43.59 4,541A2 1,8Q4.22 1,873.88 2,593.84 1.79 5,474.29 35.60 43.59 4,698.46 1,844.46 1,912.19 2,649.00 0.10 5,569.24 34.84 43.20 4,6~.03 1,88424 1,949.81 2,703.34 Q.84 5,66~4.22 35A9 4325 4,773.$7 1,923.91 1,987.49 2,757.34 Q.27 ~ ' 5,758.94 35A0 E 44.0 4,851.42 1,~3.27 2,024.61 2,811.35 0.47 5,854.51 35.19 46.03 4,929.62 2,002.10 2,{~3.47 2,$66.04 1.24 5,949.73 36.38 45.42 5,006.86 2,040.97 2,103.33 2,921.53 1.31 6,043.45 36.96 44.90 5,d82.03 2,084.44 2,143A2 2,977.26 0.70 6,138.49 36.85 45.07 5,158.03 2,120.81 2,1$3.37 3,034.08 Q.16 6,234.27 37.17 45.36 6,234.51 2,161.42 2,224.29 3,091.50 0.38 6,330.08 37.86 45.53 5,310.51 2,202.35 2,265.87 3,149.62 0.73 6,424.44 37.93 45.22 5,384.97 2,243.f16 2,3Q7.11 3,2~7.35 0.22 6,520.48 3821 45.47 5,460.58 2,284.68 2,349.24 3,266.34 Q.33 6,615.93 37.90 45.49 5,535.74 2,325.94 2,391.19 3,324.~ 0.32 6,711.30 36.87 44.90 5,613.52 2,366.74 2,432.27 3,382.62 1.15 6,806.41 36.96 44.69 5,687.57 2,407.28 2,472.52 3,439.47 0.16 6,9Q1.61 37.33 44.59 5,763.45 2,448.18 2,512.91 3,4~.6~6 Q.40 6,998.09 36.52 43.34 5,84Q.v8 2,489.9Q 2,553.'15 3,554.26 1.15 7, 092.71 35. 87 45.46 5, 916. 94 2, 529. 82 2, 592.23 3, 609.82 1.49 7,189.23 36.12 47.14 5,995.03 2,569.01 2,633.24 3,666.39 1.05 7,284.63 36.82 47.95 6,d71.75 2,607.29 2,675.08 3,723.03 0.89 7,380.08 37.46 47.47 6,147.83 2,646.d7 2,717.72 3,780.6Q 0.73 7,476.12 37.28 47.22 6,224.16 2,6$5.57 2,76~.59 3,838.81 0,24 7,571.83 37.59 ~6.58 6,300.15 2,725.32 2,8d3A7 3,896.88 0.52 1._ _J ~ EPCjCH ~~ Sak River #1 Survey Survey Survey N/S EIW Vertical Dog Leg ~ Depth fncfination Azimuth ND Departure Cleparture Sec Severity (ft} {deg} (deg) {ft} (ft) (ft) (ft) (dphf} 7,666.17 38.53 46.78 6,374.44 2,765.22 2,845.37 3,954.91 1.01 7,760.46 38.67 46.71 6,448.13 2,805.53 2,888.22 4,Q13.61 0.16 7, 855. 32 37. 76 47.22 6, 522.66 2, 845. 58 2, 931.11 4, 072.18 1. 02 7,950.69 37.30 46.98 6,598.29 2,885.12 2,973.66 4,130.18 Q.50 8,045.26 37.91 45.68 6,673.22 2,924.97 3,015.40 4,187.74 1.(}6 8,144.54 38.11 44.45 6,748.29 2,~6.41 3,456.93 4,246.15 0.82 8,234.39 38.59 44.12 6,821.89 3,008.1Q 3,097.59 4,304.05 0.55 8,32$.$0 39.01 44.60 6,$95.47 3,050.39 3,138.95 4,362.87 0.55 8,423.82 38.67 44.47 6,~9.48 3,092.87 3,180.74 4,422.15 0.36 8,516.84 38.13 44.59 7,042.38 3,'{34.~ 3,221.26 4,479.62 0.59 8,611.53 37.25 45.55 7,117.31 3,174.95 3,26224 4,53726 1.11 8, 7~6.16 36.52 46.24 7,193.00 3, 214.48 3, 3Q3. Q3 4, ~93.88 0. 89 $,797.89 36.'17 47.61 7,266.$$ 8,251.61 3,342.73 4,648.15 0.97 8,891.89 37.02 47.78 7,342.35 3,289.33 3,384.18 4,704.12 0.91 8,983.21 37.26 46.46 7,415.14 3,328.85 3,424.58 4,759.17 Q.91 9,078.45 36.76 45.3'f 7,491.19 3,366.75 3,465.74 4,8'i6.32 0.90 9,170.78 3525 44.51 7,565.88 3,405.99 3,504.07 4,870.34 1.71 9,267.29 31.24 43.83 7,646.58 3,443.12 3,544.94 4,922.93 4.18 9,363.39 27.59 44.80 7,73Q.2$ 3,476.94} 3,573.89 4,969.85 3.83 9,456.86 25.85 46.31 7,813.76 3,506.33 3,603.88 5,011.72 1.99 ~ 9,551.87 24.71 45.84 7,899.67 3,534.48 3,633.11 5,052.18 1.22 9,646.87 23.33 46.17 7,986.44 3,561.34 3,66fl.92 5,090.73 1.46 9,740.1d 21.35 44.74 $,072.67 3,586.18 3,686.18 5,126.U3 2.2d 9, 772. 71 20.40 43.56 8,103.14 3, 594. 52 3, 694.28 5,137.58 3.19 9,837A2 18. 9 3 43. 9 3 8,163.85 3,609.94 3, 708.84 5,158.63 3.53 9,931.30 14.47 4d.89 8,254.33 3,629.56 3,726.59 5,184.81 3_94 10,027.26 11.43 39.33 8,347.83 3,645.98 3,740.47 5,205.97 3.19 10,122.16 8.47 42.13 8,441.30 3,658.44 3,751.11 5,222.11 3.16 10,218.18 6.17 44.89 8,536.53 3,667.33 3,759.5Q 5,234.24 2.42 10,314.23 3.62 46.81 $,632.22 3,673.07 3,765.34 5,242.40 2.65 10,409.11 1.19 ~4.92 8,727.01 3,675.70 3,768.33 5,246.38 2.5$ 1Q,504.49 0.52 82.54 8,822.38 3,676.33 3,769.57 5,247.73 0.81 10,600.38 0.74 40.67 • 8,918.26 3,676.86 3,770.41 5,248.71 4.52 10,654.96 1.27 18.44 8,972.84 3,677.70 3,77Q.83 5,249.57 1.18 10,694.52 1.68 6.14 9,012.38 3,678.69 3,771.Q3 5,250.36 1.32 10,774.98 327 344.85 9,092.77 3,682A8 3,770.55 5,252.15 2.25 10,865.87 3.55 330.48 9,183.50 3,687.43 3,768.49 5,253.72 Q98 10,961.38 6.71 3Q8.24 9,278.62 3,693.06 3,762.65 5,253.06 3.85 11,055.29 5.23 288.60 9,372.03 3,697.82 3,754.28 5,249.64 2.66 11,151.03 3.25 287.83 9,487.50 3,700.44 3,747.56 5,245.88 2.07 ~ ~ ~~ EPUCH 3s Sak River #1 Survey Survey Survey N/S E1W Vertical Dog ~eg ~ Depth Inctinatian Azimuth ND Departure Departure Sec Severity (ft) (deg) {deg) {ft) (ft) {ft} (ft) (dphf} 11,247.50 1.13 75.84 9,563.93 3,749.91 3,745.88 5,24527 4.41 11,341.Q9 1.97 142.33 9,657.49 3,74d.06 3,747.77 5,246.Q5 1.97 11,436.05 4.39 17Q.71 9,752.30 3,695.18 3,749.3~ 5,244.16 2.97 11,531.~ 7.5Q 174.56 9,846.79 3,685.41 3,750.53 5,238.84 3.29 11,625.36 11.15 17121 9,939.83 3,67Q27 3,752.51 5,230.72 3.91 11,720.51 16.72 169.45 10,Q32.14 3,647.71 3,756.42 5,219.36 5.87 11, 814.57 18.15 't 70.62 10,121.88 3,619.95 3, 761.29 5, 205.43 1.57 11,907.$4 20.19 171.88 10,209.98 3,589.68 3,755.93 5,1$9.72 2.23 9 2, d01. 34 22. 32 172.04 1 fl, 297.19 3, 556.13 3, 770.67 5,17 9.98 2.28 12, 097.94 21.4'f 172.12 'f 0, 386.76 3, 520.49 3, 775.62 5,153.11 d.93 't2,192.40 21.~ 172,fl6 10,474.54 3,485.92 3,780.43 5,134.78 0.57 12,287.78 21.31 172.26 10,563.20 3,45'l.09 3,785.22 5,11628 0.68 12,3$1.58 20.62 173.39 1Q,650.79 3,417.79 3,789.42 5,09$.30 0.85 12,477.39 19.52 172.92 1Q,740.77 3,385.14 3,793.34 5,080.52 1.17 12,57Q.89 18.Q5 173.74 1Q,829.29 3,355.23 3,7~.84 5,064.17 1.59 12,665.97 '~6.82 173.66 10,920.00 3,326.92 3,799.97 5,048.53 1.3Q 12, 762.43 14. 99 175.04 11, 012. 77 3, 300.62 3, 802. 59 5, 033. 79 1. 93 12,854.46 14.75 175.47 11,101.71 3,277.08 3,804.54 5,020.30 Q.29 12,947.58 14.54 176.57 11,191.82 3,253.59 3,8~.'(7 5,OQ6.6Q 0.37 13,042.42 14.57 177.51 11,283.6Q 3,229.79 3,807.40 4,992.38 0.25 ~ 13,Q70.24 14.73 176.31 11,310.52 3,222.77 3,8Q7.78 4,988.20 1.23 13,19 0.00 14.69 3 76.31 11,348.98 3,212.70 3,808.43 4,982.28 0.08 ~1 LJ ~~ EPOCH 37 Sak River #1 4_3. MUD RECORD Contractor: MI Drilling Fluids Mud Type: Spud Mud: 110' - 4036' DATE 8l16/07 3/17/07 3118l07 3119/07 3/20/07 3/21/07 3/22/07 3/23/07 3/24/07 3/25/07 3/26/07 3/27/07 3/28/07 3/29/07 3/30/07 3/31 /07 4I1 /07 4/2/07 4/3/07 A~/4/07 4/5/07 ~~ MD / TVD MW VIS PV YP 342l342 8.7 320 21 50 499/499 8.7 360 24 53 2,475/2,249 9.3 180 30 47 4,Q36/3,476 9.6 150 30 30 4,Q36/3,476 9.6 150 28 32 4,036/3,476 9.7 57 18 10 4,036/3,476 9.6 63 1$ 10 4, 036/3, 476 9.6 63 18 10 4,2Q0/3,602 9.6 54 11 18 6,5Q0/5,444 9.5 54 18 23 7,800/6,478 9.6 49 14 28 8,830/7,293 9.7 58 18 29 9,962/8,284 10.5 61 35 31 10,685/9,003 10.4 54 20 37 10,876/9,194 1 Q.4 54 21 25 10, 876/9,194 1 Q.4 50 21 25 11,391/9,71Q 10.4 50 20 31 11, 843/1 p,156 10.4 62 23 34 12,969/11,219 10.3 50 24 26 13,110l11,219 10.6 53 26 29 13,110/11,219 10.6 52 20 31 KLA GARD: 4036' -1311 Q' GE4S FL PG SOL 41UH2O SD MBT pH Alk GI- Ca+ 43/53155 6.5 2 6 /94 .5 13 9.1 0.16 600 40 56172182 6.9 2 4 /96 .5 12 9.0 0.10 700 80 40/75/9b 5, 8 2 5.5 1/94 1 20 9.5 0.12 400 8q 22/47/67 5.5 2 6 /94 1.2 18 9.2 0.07 504 80 25/79/99 5.8 2 5 /95 1 16 9,2 O.Q6 400 80 4/9112 8.0 1 5 /95 1 15 8.8 0.01 400 80 4/9/12 8.Q 1 5 !95 1 15 8.8 0.0'1 40Q 80 4/6/12 8.0 1 5 /95 1 15 $.8 0.01 400 80 7/9/12 6.5 1 4 1/95 1 15 9.7 0.90 29500 120 10/17/24 5.3 1 6 2/92 1 7.5 9.1 0.20 29Q00 400 10/19/25 5.5 1 7 2/91 .75 10 8.7 0.06 2700Q 52Q 11 /17/26 5.Q 1 9 2/89 TR 1 Q 9.0 0.30 26000 200 15/25/32 4,0 2 10 3l88 TR 18 8.5 0.11 29000 200 12l31 /39 4.5 2 12 3/86 TR 18 8.5 0.08 290Q0 120 11 /23/31 5.2 1 11 3/87 TR 20 8.5 0.08 30000 180 10/24/32 5.2 1 11 3/87 TR 20 8.5 Q.05 31000 180 19/35/51 5.1 1 11 3/86 TR 18 8.5 0.06 32000 14Q 19/37/57 5.0 1 11 3/86 .75 19 9.0 0.06 29000 16~ 19/37/44 5.8 1 11 3/86 .75 19.5 8.5 0.07 30000 160 20/34/46 5, 5 1 12 3/85 TR 19 8.5 0.07 32000 200 22/34t46 6.0 1 12 3/85 TR 18.75 8.6 0.03 30000 200 ~~ EP H 3$ ! Sak River #1 BIT NO. 1 2 3 SIZE « 12.25 8.75 8.75 4~4. BIT RECORD TYPE S/N Smith XR+ PE8716 Sec DBS 10835490 FSF2563 Smith M1519 JX1364 , ~~~5~ IN OUT FT HRS AVE WOB ~PM TFA ROP Lo-Avg-Hi 3x22, 12 110' 4,036' 392' 34.8 112.8 0-19-40 75 5x17 4,036' 10,876' 6,840' 83.5 81.9 1-13-33 110 4x14,3x15 10,876' 13,110" 2,234' 40.3 102.4 Q-17-74 45 ~ EP~H PP Lo - Avg - Hi 358-1193-1$33 985-2300-2808 2087-3007-3567 CONDITION 7-7-WT-A-E-1-ER= 1-4-CT-A-X-I-ER D7F 39 ~ ~ ~ ~ ~ ~ ~ DEPTH (FT) ~~~E3g8~8~~e~~~c 3/15/07 3/16/07 I 3/ 17/07 ~ ~ I 3/18/07 3/19/07 3/20/07 i ~I I 3121 /07 3/22/07 ~ I I 3/23/07 i 3/24/07 3/25/07 ~/26/07 i ~ 3127/07 ~ i ' 3/28/07 ~ ~ I 3/29/07 I ~ ~ 3/30/07 3/31 /07 4/1 /07 ~ T Ij 4/2/07 ~ ~ ~~ 4/3/07 4/4/07 4/5/07 .~ ~ ~ v ~ ~ <~ ~ ~ J ~ 0 ~ Daiiy Repor~ Page 1 of 1 BROOKS RANGE PETRO CORP DAILY WELLSITE REPORT ~ ~~~~~ SAK RIVER 1 REPORT FOR DATE Mar 17, 2007 DEPTH 361.00000 PRESENT OPERATION DRILLING TIME 00:00 YESTERDAY 350.00000 24 HOUR FOOTAGE 11 CASING INFORMATION SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JE7S IN OUT FOOTAGE HOURS T/B/C PULLED 12.25 SMITH / CONE PE8716 22-22-22-12 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 492.6 @ 357.00000 99.1 @ 358.00000 265.0 220.21042 FT/HR SURFACE TORQUE 2781 @ 350.00000 316 @ 358.00000 1584.4 1550.13928 AMPS WEIGHT ON BIT 28 @ 356.00000 1 @ 360.00000 16.4 15.23844 KLBS ROTARY RPM 34 @ 355.00000 29 @ 360.00000 34.5 33.01191 RPM PUMP PRESSURE 843 @ 356.00000 710 @ 358.00000 853.3 744.36346 PSI DRILLING MUD REPORT DEPTH 342 MW 8.7 VIS 320 PV 21 YP 50 FL 6.5 Gels 43/53/55 CL- 600 FC 2 SOL 6 SD 6 OIL 0 M~L 13 pH 9.1 Ca+ 40 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 0@ 350.00000 0@ 359.00000 1.0 TRIP GAS N/A CUTTING GAS 0@ 361.00000 0@ 361.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY N/A METHANE (C-1) 0@ 361.00000 0@ 361.00000 0.0 CONNECTION GAS HIGH 0 ETHANE (C-2) 0@ 361.00000 0@ 361.00000 0.0 AVG 0 PROPANE (C-3) 0@ 361.00000 0@ 361.00000 0.0 CURRENT 0 BUTANE (C-4) 0@ 361.00000 0@ 361.00000 0.0 CURRENT BACKGROUND/AVG 1/1 PENTANE (G5) 0@ 361.00000 0@ 361.00000 OA HYDROCARBON SHOWS INTERVAL UTHOLOGYlREMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLQGY CONGLOMERATE SAND 80%, SAND 20% DAILY ACTIVITY SUMMARY BEGIN MUDLOGGING SERVICE @ 350 FEET. EPOCH PERSONNEL ON BOARD 4 DAILY COST NO INFO REPORT BY JONN RUSTIN ~ file://C:\Documents%20and%20 Settings\EpochAdmin\My%20Documents\My%20Wells\Br... 4/6/2007 ~ • Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~,~~~,~ Sak River 1 REPORT FOR JACK KEENER DATE Mar 18, 2007 DEPTH 547.00000 PRESENT OPERATION DRILLING TIME 00:00 YESTERDAY 361.00000 24 HOUR FOOTAGE 186 CASING INFORMATION DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 1 12.25 SMlTH XR+ PE8716 22-22-22-12 110 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 220.2 @ 361.00000 14.1 @ 500.00000 87.2 78.57517 FT/HR SURFACE TORQUE 2534 @ 376.00000 0 @ 542.00000 447.7 1551.70435 AMPS WEIGHT ON BIT 22 @ 541.00000 0 @ 457.00000 6,9 7.45797 KLBS ROTARY RPM 45 @ 417.00000 -1 @ 537.00000 30.5 37.09989 RPM PUMP PRESSURE 926 @ 467.00000 405 @ 418.00000 711.6 870.40240 PSI DRILLING MUD REPORT DEPTH 499 MW 8.7 VIS 360 PV 24 YP 53 FL 6.9 Gels 56/72/82 CL- 700 FC 2 SOL 4 SD 0.5 OIL 0 MBL 12 pH 9.0 Ca+ 80 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 1 @ 527.00000 0@ 496.00000 1.0 TRIP GAS N/A CUTTING GAS 0 @ 547.00000 0@ 547.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 262 @ 418.00000 115 @ 496.00000 186.6 CONNECTION GAS HIGH 0 ETHANE (G2) 0 @ 547.00000 0@ 547.00000 OA AVG 0 PROPANE (C-3) 0 @ 547.00000 0@ 547.00000 0.0 CURRENT 0 BUTANE (C-4) 0 @ 547.00000 0 @ 547.00000 0.0 CURRENT BACKGROUNOIAVG 1/1 PENTANE (G5) 0 @ 547.00000 0@ 547.00000 0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY CLAY 6 0%, CONGLOMERATE SAND 20%, SAND 10%, CONGLOMERATE 10% DAILY ACTIVITY DRILLED TO 392', FLOW LINE PACKED OFF, PULLED OUT OF HOLE TO CLEAR FLOW LINE; CLEANED SUMMARY FLOW LINE; TRIP IN HOLE, DRILL TO 547 AT REPORT TIME. EPOCH PERSONNEL ON BOARD 4 DAILY COST REPORT BY JOHN RUSTIN • file: UC :\Documents%20and%20 S ettings\EpochAdmin\My%20Documents\My%20 W ells\Br... 4/6/2007 Daily Report ~ . Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~ ~,~~~ ,~ Sak River 1 REPORT FOR JACK KEENER DATE Mar 18, 2007 DEPTH 2482 PRESENT OPERATION DRILLING TIME 23:59 YESTERDAY 547 24 HOUR FOOTAGE 1890 CASING INFORMATION DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 1788.61 29.00 49.24 1705.16 1883.63 34.91 47.06 1785.75 SURVEY DATA 1978.28 34.52 45.93 1863.55 2072.45 36.07 45.51 1940.41 2127.28 39.75 46.12 1983.66 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 1 12.25 SMITH XR+ PE8716 22-22-22-12 110 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 953.4 @ 2102.00000 9.8 @ 2055.00000 151.9 304.36252 FTlHR SURFACE TORQUE 6653 @ 2283.00000 -3 @ 1895.00000 1577.8 4289.01953 AMPS WEIGHT ON BIT 40 @ 1914.00000 -2 @ 703.00000 19.4 10.11865 KLBS ROTARY RPM 73 @ 2434.00000 -1 @ 887.00000 24.1 71.70731 RPM PUMP PRESSURE 1518 @ 1931.00000 450 @ 1105.00000 1193.2 1270.91064 PSI DRILLING MUD REPORT DEPTH 2475 MW 9:3 VIS 180 PV 30 YP 47 FL 5.8 Gels 40/75/90 CL- 400 FC 2 SOL 5.5 SD 1 OIL 1 MBL 20 pH 9.5 Ca+ 80 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 9 @ 2395.00000 0@ 1187.00000 2.8 TRIP GAS N/A CUTTING GAS 0 @ 2437.00000 0@ 2437.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 1982 @ 2395.00000 185 @ 1187.00000 553.4 CONNECTION GAS HIGH 0 ETHANE (C-2) 0 @ 2437.00000 0@ 2437.00000 0.0 AVG 0 PROPANE (C-3) 0 @ 2437.00000 0@ 2437.00000 OA CURRENT 0 BUTANE (C-4) 0 @ 2437.00000 0@ 2437.00000 0.0 CURRENT BACKGROUND/AVG 6/5 PENTANE (C-5) 0 @ 2437.00000 0@ 2437.00000 0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGYIREMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY SAND 8 0%, CLAY 10%, SILTSTONE 10% DAILY ACTIVITY SUMMARY DRILL FROM 547 TO 2482. EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY JOHN RUSTIN C~ file:UC:\Documents%20and%20S ettings~EpochAdmin\My%20Docurnents\My%20 Wells\Br... 4/6/2007 ~ ~ ~~ ~J Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~~~~,~ Sak River 1 REPORT FOR JACK KEENER DATE 3/19/2007 DEPTH 4036.00000 PRESENT OPERATION TRIP TIME 23:59 YESTERDAY 2482.00000 24 NOUR FOOTAGE 1554 CASING INFORMATION DEPTH INCLINATION AZIMU7H VERTiCAL DEPTH SURVEY DATA 3959.57 39.06 45.61 3417.03 4036 3476.38 Projected BI7INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 496.4 @ 3038.00000 14.4 @ 3744.00000 167.7 169.00000 FT/HR SURFACE TORQUE 7635 @ 3755.00000 -3 @ 3015.00000 5277.7 6666.00000 AMPS WEIGHT ON BIT 31 @ 3032.00000 -14 @ 3094.00000 12.6 10.00000 KLBS ROTARY RPM 88 @ 2681.00000 -1 @ 3001.00000 75.4 77.00000 RPM PUMP PRESSURE 1833 @ 3991.00000 1076 @ 3599.00000 1450.3 1747.00000 PSI DRILLING MUD REPORT DEPTH MW VIS PV YP FL Gels CL- FC SOL SD ' OIL MBL pH Ca+ CCI MWD SUMMARY IN7ERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 22 @ 4018.00000 1 @ 2841.00000 7.4 TRIP GAS N/A CUTTING GAS 0 @ 4036.00000 0@ 4036.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY(ppm) SURVEYO METHANE (C-1) 4470 @ 4018.00000 360 @ 2841.00000 1480.8 CONNECTION GAS HIGH 0 ETHANE (C-2) 0 @ 4036.00000 0@ 4036.00000 0.0 AVG 0 PROPANE (C-3) 0 @ 4036.00000 0@ 4036.00000 0.0 CURRENT 0 BUTANE (C-4) 0 @ 4036.00000 0@ 4036.00000 0.0 CURRENT BACKGROUND/AVG 0/7 PENTANE (C-5) 0 @ 4036.00000 0@ 4036.00000 0.0 HYDROCARBON SHOWS IN7ERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY SAND 40%, CLAY 40%, SILTSTONE 20% DAILY ACTIVITY SUMMARY DRILL FROM 2482 TO 4036, TRIP OUT FOR CASING RUN EPOCH PERSONNEL ON BOARD 4 DAILY COST $660 REPORT BY JOHN RUSTIN ~ file://C: \Documents%20and%20SettingsiEpochAdminiMy%20Documents\My%20 Wells\Br... 4/6/2007 ~ ~ Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSiTE REPORT ~~ ~~~~,~ Sak River 1 REPORT FOR JACK KEENER DATE 12/20/2007 DEPTH 4036.00000 PRESENT OPERATION RUNNING CASING TIME 23:59 YESTERDAY 4036.00000 24 HOUR FOOTAGE 0 CASING INFORMATION SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION lNTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ @ FT/HR SURFACETORQUE @ @ AMPS WEIGHT ON BIT @ @ KLBS ROTARY RPM @ @ RPM PUMP PRESSURE @ @ PSI DRILLING MUD REPORT DEPTH MW 9.6 VIS 150 PV 28 YP 32 FL 5.8 Gels 25/75/99 CL- 400 FC 2 SOL 5 SD 1 OIL 0 MBL 96 pH 9.2 Ca+ 8p CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS 28 CUTTING GAS @ @ WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY N/A METHANE (C-1) @ @ CONNECTION GAS HIGH N/A ETHANE (C-2) @ @ AVG N/A PROPANE (C-3) @ @ CURRENT N/A BUTANE (C-4) @ @ CURRENT BACKGROUND/AVG 0/7 PENTANE (C-5) @ @ HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY NO FORMATION DRILLED SINCE LAST REPORT DAILY ACTIVITY FINISH TRIP OUT FOR CASING RUN; TRIP IN, CIRCULATE, TRIP GAS 28 UNITS TRIP OUT; BEGIN SUMMARY CASING RUN. , EPOCH PERSONNEL ON BOARD 4 DAILY COST $3600 REPORT BY JOHN RUSTIN C~ file://C:~Documents%20and%20Settings\Epoch~ldmin\My%20Documents\My%20 Wells\Br... 4/6/2007 ~ ~ -~ ~J Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~,~!~~ r~ Sak River 1 . REPORT FOR JACK KEENER DATE 12/21/2007 DEPTH 4036.00000 PRESENT O PERATION RUNNING CASING TIME 23:59 YESTERDAY 4036.00000 24 HOUR FOOTAGE 0 CASING INFORMATION SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDI710N REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENTAVG RATE OF PENETRATION @ @ FT/HR SURFACE TORQUE @ @ AMPS WEIGHT ON BIT @ @ KLBS ROTARY RPM @ @ RPM PUMP PRESSURE @ @ PSI DRIILING MUD REPORT DEPTH MW 9.7 VIS 57 PV 18 YP 10 FL 5.8 Gels 4/9/12 CL- 400 FC 1 SOL 5 SD 1 OIL 0 MBL 15 pH 8.8 Ca+ 80 CCI MWa SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS N/A CUTTING GAS @ @ WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY N/A METHANE (C-1) @ @ CONNECTION GAS HIGH N/A ETHANE (G2) @ @ AVG N/A PROPANE (C-3) @ @ CURRENT N/A BUTANE (C-4) @ @ CURRENT BACKGROUND/AVG 0/7 PENTANE(G5) @ @ HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY NO FORMATION DRILLED SINCE LAST REPORT DAILY ACTIVITY SUMMARY BEGIN CASING RUN, CONTINUE CASING RUN EPOCH PERSONNEL ON BOARD 4 DAILY COST $3600 REPORT BY JOHN RUSTIN ~1 L~ file://C: ~Documents%20and%20S ettings~EpochAdmin\My%20Documents~lVly%20Wells\Br... 4/6/2007 ~ ~ ~~ ~J Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~~~~~ Sak River 1 REPOR7 FOR JACK KEENER DATE 12/22/2007 DEPTH 4036.00000 PRESENT OPERATION TESTING BOPs TIME 23:59 YESTERDAY 4036.00000 24 HOUR FOOTAGE 0 CASING INFORMATION SURVEY DATA DEPTH INCLINATION AZlMUTH VERTICA~ DEPTH BIT INFORMATION ~NTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ @ SURFACE TORQUE @ @ FT/HR WEIGHT ON BIT @ @ AMPS ROTARY RPM @ @ KLBS PUMP PRESSURE @ @ RPM PSI DRILLING MUD REPORT DEPTH 4036 MW 9.6 VIS 63 PV 18 YP 10 FL 8 Gels 4/9/12 CL- 400 FC 1 SOL 5 SD 1 OIL 0 MBL 15 pH 8.8 Ca+ 80 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ CUTTING GAS @ @ TRIP GAS N/A WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY N/A METHANE (C-1) @ @ CONNECTION GAS HIGH N/A ETHANE (G2) @ @ PROPANE (C-3) @ @ AVG N/A BUTANE (C-4) CURRENT N/A @ @ C URRENT BACKGROUND/AVG N/A PENTANE(G5) @ @ HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY NO FORMATION DRILLED SINCE LAST REPORT DAfLY ACTIVITY SUMMARY NIPPLE UP BOPS, TEST BOPS EPOCH PERSONNEL ON BOARD 4 DAILY COST $3600 REPORT BY JOHN RUSTIN file://C:~Documents%20and%20 S ettings\EpochAdmin\My%20Documents\My%20 Wells\Br... 4/6/2007 ~ ~ Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~ ~~~~ Sak River 1 . REPORT FOR JACK KEENER DATE 12/23/2007 DEPTH 4036.00000 PRESENT OPERATION MAKING UP BHA TIME 23:59 YESTERDAY 4036.00000 24 HOUR FOOTAGE 0 CASING INFORMATION SURVEY DATA DEPTH iNCLfNATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ @ SURFACETORQUE @ @ FT/HR WEIGHT ON BIT @ @ AMPS KLBS ROTARY RPM @ @ RPM PUMP PRESSURE @ @ PSI DRILLING MUD REPORT DEPTH 4036 MW 9.6 VIS 63 PV 18 YP 10 FL 8 Gels 4/6/12 CL- 400 FC 1 SOL 5 SD 1 OIL 0 MBL 15 pH 8.8 Ca+ 80 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS N/A CUTTING GAS @ @ WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY N/A METHANE (C-1) @ @ CONNECTION GAS HIGH N/A ETHANE (G2) @ @ AVG N/A PROPANE (C-3) @ @ CURRENT N/A BUTANE (C-4) @ @ CURRENT BACKGROUND/AVG N/A PENTANE (G5) @ @ HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY NO FORMATION DRILLED SINCE LAST REPORT DAILY ACTIViTY SUMMARY FINISHED TESTING BOPs; PICK UP DRILL PIPE; MAKE UP BHA. EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY JOHN RUSTIN • file://C:~Documents%2Oand%20 S ettings\EpochAdmin\My%20Documents\My%20Wells\Br... 4/6/2007 i ~~ `..~ Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~~~~~ Sak River 1 REPORT FOR JACK KEENE R DATE Mar 24, 2007 DEPTH 4269.00000 PRESENT OPERATION DRILLING TIME 23:59 YESTERDAY 4036.00000 24 HOUR FOOTAGE 233 CASING INFORMATION 9 5/8 @ 4020 SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2 8.75 SEC DBS FSF2536 5x17 4036 DRILLiNG PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 384.3 @ 4092.00000 68.2 @ 4056.00000 223.4 146.15135 FT/HR SURFACE TORQUE 12444 @ 4191.00000 4904 @ 4192.00000 8256.8 9746.43457 AMPS WEIGHT ON BIT 12 @ 4058.00000 2 @ 4038.00000 7.0 4.23290 KLBS ROTARY RPM 139 @ 4192.00000 75 @ 4038.00000 89.1 92.Q0678 RPM PUMP PRESSURE 1747 @ 4036.00000 1322 @ 4041.00000 1400.6 1420.72620 PSI DRILLING MUD REPORT DEPTH MW VIS PV YP FL Gels CL- FC SOL SD OIL MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 36 @ 4179.00000 2@ 4037.00000 17.3 TRIP GAS 0 CUTTING GAS 0 @ 4269.00000 0@ 4269.00000 OA WIPER GAS N/A CHROMATOGRAPHY(ppm) SURVEYO METHANE (C-1) 6953 @ 4179.00000 595 @ 4037.00000 3222.3 CONNECTION GAS HIGH 0 ETHANE (G2) 0 @ 4269.00000 0@ 4269.00000 OA AVG 0 PROPANE (C-3) 0 @ 4269.00000 0@ 4269.00000 0.0 CURRENT 0 BUTANE (C-4) 0 @ 4269.00000 0@ 4269.00000 0.0 CURRENT BACKGROUND/AVG 22/25 PENTANE (C-5) 0 @ 4269.00000 0@ 4269.00000 0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY CLAY 50%, SAND 30%, SILTSTONE 20% DAILY ACTIVITY SUMMARY DRILL TO 4269. EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY JOHN RUSTIN . file://C:\Documents%20and%20 S ettings\EpochAdmin\My%20Documents~lVly%20 Wells\Br... 4/6/2007 ~ Daily Report Page 1 of 1 Brooks Range Petroleum DA1LY WELLSITE REPORT ~~ ~~~~~I Sak River 1 REPORT FOR JACK KEENER DATE Mar 25, 2007 DEPTH 6480.00000 PRESENT OPERATION DRILLING TIME 23:59 YESTERDAY 4269.00000 24 HOUR FOOTAGE 2211 CASING INFORMATION 9 5/8 @ 4020 SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAI DEPTH BIT INFpRMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE H OURS T/B/C PULLED 2 8.75 SEC FBS FSF2536 5x17 4036 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 2769.2 @ 4937.00000 5.4 @ 6371.00000 204.6 192.51337 FT/HR SURFACE TORQUE 14308 @ 4930.00000 3936 @ 4419.00000 10091.3 13815.62793 AMPS WEIGHT ON BIT 20 @ 5421.00000 -14 @ 4936.00000 10.3 9.12877 KLBS ROTARY RPM 131 @ 4564.00000 79 @ 6480.00000 95.0 79.86766 RPM PUMP PRESSURE 1790 @ 5183.00000 1000 @ 5334.00000 1608.2 1635.86951 PSI DRILLING MUD REPORT DEPTH MW 9.5 VIS 54 PV 18 YP 23 FL 84 Gels 10/17/24 CL- 29000 FC 1 SOL 6 SD 1 OIL 2 MBL 7.5 pN 9.1 Ca+ 400 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 512 @ 4981.00000 1@ 5996.00000 17.8 TRIP GAS N/A CUTTING GAS 0 @ 6480.00000 0@ 6480.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 102598 @ 4981.00000 -1 @ 4579.00000 3561.8 CONNECTION GAS HIGH 0 ETHANE (C-2) 0 @ 6480.00000 -1 @ 4579.00000 -0.0 AVG 0 PROPANE (C-3) 0 @ 6480.00000 -i @ 4579.00000 -0.0 CURRENT Q BUTANE (C-4) 0 @ 6480.00000 -2 @ 4579.00000 -0.0 CURRENT BACKGROUND/AVG 8/6 PENTANE (C-5) 0 @ 6480.00000 -2 @ 4579.00000 -0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY SAND 40%, CLAY 30%, SILTSTONE 20%, SHALE 10% DAILY ACTtVITY SUMMARY PUMP SWEEP, DRILL AHEAD TO 6480' EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY JOHN RUSTIN ~ file://C:~Documents%20and%20 S ettings\EpochAdmin~lVly%20Documents\My%20Wells\Br... 4/6/2007 Daily Report ~ r~ ~ J Page 1 of 1 Brooks Range Petroleum DAILY WELLSiTE REPORT ~~ ~~~~ ~ Sak River 1 . REPORT FOR JACK KEENER DATE Mar 26, 2007 DEPTH 7817 PRESENT OPERATION DRILLING TIME 23:59 YESTERDAY 6480 24 HOUR FOOTAGE 1337 CASING INFORMATION 9 5/8 @ 4020 DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 7571.83 37.58 46.58 6300.16 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2 8.75 SEC DBS FSF2536 5x17 4036 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 390.1 @ 7348.00000 3.8 @ 7349.00000 138.2 81.81075 FTlHR SURFACE TORQUE 16532 @ 6766.00000 10087 @ 6520.00000 13665.8 14421.31250 AMPS WEIGHT ON BIT 33 @ 7348.00000 -15 @ 7314.00000 8.9 12.37619 KLBS ROTARY RPM 126 @ 6868.00000 77 @ 6484.00000 113.2 118.25100 RPM PUMP PRESSURE 1923 @ 7409.00000 985 @ 7026.00000 1747.8 1869.01843 PSI DRILLING MUD REPORT DEPTH 7800 MW 9.6 VIS 49 PV 14 YP 28 FL 5.5 Gels 10/19/25 CL- 27000 FC 1 SOL 7 SD OJ5 OIL 2 MBL 10 pH 87 Ca+ 520 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCN GAS 100 @ 7326.00000 Q@ 6902.00000 1T.8 TRIP GAS N/A CUTTING GAS 0 @ 7817.00000 0@ 7817.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY(ppm) SURVEYO METHANE (C-1) 20277 @ 7326.00000 180 @ 6902.00000 2299.2 CONNECTiON GAS HiGH 0 ETHANE (C-2) 0 @ 7817.00000 0@ 7817.00000 0.0 AVG 0 PROPANE (C-3) 0 @ 7817.00000 0@ 7817.00000 0.0 CURRENT 0 BUTANE (C-4) 0 @ 7817.00000 0@ 7817.00000 0.0 CURRENT BACKGROUND/AVG 7/8 PENTANE (C-5) 0 @ 7817.00000 0@ 7817.00000 0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY CLAY 70%a, SILTSTONE 20°/a, SAND 10°/a DAILY ACTNITY SUMMARY DRILL FROM 6480' TO 7817' A TOTAL OF 133T EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY JOHN RUSTIN ~ ~ file://C:\Documents%20and%20Settings\EpochAdmin\My%20Documents~Nly%20Wells\Br.,. 4/6/2QQ7 ~ /, 1I u Daily Report Page 1 of 1 8rooks Range Petroleum DAILY WELLSITE REPORT ~~ ~r~~~~-'I Sak River 1 REPORT FOR JACK KEENER DATE Mar 27, 2007 DEPTH 9320.00000 PRES ENT OFERATION DRILLING AHEAD TIME 23:59:46 YESTERDAY 7817.00000 24 HOUR FOOTAGE 1503 CASING INFORMATION 9 5/8 @ 4020 DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA g078.45 36.76 45.31 7491.19 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2 8.75 SEC DBS FSF2536 5x17 4036 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 300.4 @ 9300.00000 8.8 @ 9183.00000 102.3 112.14954 FT/HR SURFACE TORQUE 17739 @ 8956.00000 11845 @ 7865.00000 15036.6 14931.52637 AMPS WEIGHT ON BIT 18 @ 9018.00000 -12 @ 8548.00000 12.7 15.76251 KLBS ROTARY RPM 141 @ 8322.00000 79 @ 7854.00000 122.8 120.35741 RPM PUMP PRESSURE 2437 @ 9110.00000 906 @ 8566.00000 2109.3 2393.94971 PSI DRILLING MUD REPOR7 DEPTH 9350 MW 9.7 VIS 58 PV 18 YP 29 FL 5 Geis 11/17/26 CL- 26000 FC 1 SOL 9 SD tr OIL 2 MBL 10 pH 9.0 Ca+ 200 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 13 @ 9305.00000 1 @ 7949.00000 6.5 TRIP GAS N/A CUTTING GAS 0 @ 9320.00000 0@ 9320.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 2778 @ 9305.00000 235 @ 7949.00000 1277.2 CONNECTION GAS HIGH 0 ETHANE (C-2) 0 @ 9320.00000 0@ 9320.00000 0.0 AVG 0 PROPANE (C-3) 0 @ 9320.00000 0@ 9320.00000 0.0 CURRENT 0 BUTANE (C-4) 0 @ 9320.00000 0@ 9320.00000 0.0 CURRENT BACKGROUND/AVG 7/9 PENTANE (C-5} 0 @ 9320.00000 0@ 9320.00000 0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY CLAYSTONE 50%, SNALE 20%, 51LTSTONE 30% DAILY ACTIVITY SUMMARY DRILL FROM 7817' TO 9320' A TOTAL OF 1503' EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY KEVIN MCMULLEN ~ file://C:~Documents%20and%20Settings\EpochAdmin\My%20Documents\My%20 Wells\Br... 4/6/2007 ~ ~ ~ Daily Report Page 1 of 1 Brooks Range Petroleum . DAILY WELLSITE REPORT ~~ F~~~~I Sak River 1 REPORT FOR JACK KEENER DATE Mar 28, 2007 DEPTH 9963.00000 PRESENT OPERATION RIG REPAIR TIME 23:59:03 YESTERDAY 9320.00000 24 HOUR FOOTAGE 643 CASING INFORMATION SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH ggg~.02 ~g,13 43.13 8163.85 BIT INFORMATION IN7ERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE H OURS T/B/C PULLED 2 8.75 SEC DBS FSF2536 5x17 4036 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATlON 261.5 @ 9625.00000 11.9 @ 9821.00000 109.5 54.28227 FT/HR SURFACE TORQUE 18883 @ 9626.00000 9422 @ 9960.00000 16154.6 13627.81934 AMPS WEIGHT ON BIT 19 @ 9403.00000 -11 @ 9587.00000 13.2 9.95739 KLBS ROTARY RPM 131 @ 9771.00000 83 @ 9626.00000 114.7 102.27354 RPM PUMP PRESSURE 2808 @ 9961.00000 925 @ 9631.00000 2492.6 2789.61035 PSI DRILLING MUD REPORT DEPTH 9962 MW 10.5 VIS 61 PV 35 YP 31 FL 4 Gels 15/25/32 CL- 29000 FC 2 SOL 10 SD TR OIL 3 MBL 18 pH 8.5 Ca+ 200 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 19 @ 9928.00000 3@ 9761.00000 9.2 TRIP GAS N/A CUTTING GAS 0 @ 9962.00000 0@ 9962.00000 0.0 WIPER GAS 40 CHROMATOGRAPHY(ppm) SURVEYO METHANE (C-1) 4320 @ 9928.00000 715 @ 9761.00000 1859.7 CONNECTION GAS HIGH 0 ETHANE (C-2) 96 @ 9877,00000 3@ g92g,00000 6.2 AVG 0 PROPANE (C-3) 0 @ 9962.00000 0@ 9962.00000 0.0 CURRENT 0 BUTANE (C-4) 0 @ 9962.00000 0@ 9962.00000 0.0 CURRENT BACKGROUND/AVG 6/9 PENTANE (C-5) 0 @ 9962.00000 0@ 9962.00000 0.0 HYDROCARBON SHOWS INTERVAL UTHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY CLAYSTONE 10%, SHALE 50%, SILTSONE 40°/a DAILY ACTIVITY DRILL AHEADTO 9800', PULLED 22 STANDS FOR WASHOUT DRILL AHEAD FROM 9320' 9 ' SUMMARY RIG REPAIR , - 963 , EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY KEVIN MCMULLEN file://C: \Documents%20and%20Settings~EpochAdmin\My%20Documents\My%20 Wells\Br... 4/6/2007 ~J ~ Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~~~~,~ Sak River 1 REPORT FOR JACK KEENER DATE Mar 29, 2007 DEPTH 10673 PR ESENT OPERATION RIG REPAIR TIME 23:59:01 YESTERDAY 9963 24 HOUR FOOTAGE 710 CASING INFORMATION 9 5/8 @ 4020 DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 10504.49 0.51 82.54 8822.38 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2 8.75 SEC DBS FSF2536 5X17 4036 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 123.7 @ 10558.00000 4.9 @ 10513.00000 67.0 55.91104 FT/HR SURFACE TORQUE 18601 @ 10566.00000 13366 @ 10568.00000 16380.5 17365.21680 AMPS WEIGHT ON BIT 18 @ 10546.00000 0 @ 10526.00000 10.7 15.85327 KLBS ROTARY RPM 103 @ 10534.00000 89 @ 10660.00000 97.3 92.13161 RPM PUMP PRESSURE 2650 @ 10410.00000 2220 @ 10453.00000 2522.7 2489.97949 PSI DRILLING MUD REPORT DEPTH 10685 MW 10.4 VIS 54 PV 20 YP 37 FL 4.5 Gels 12/31/39 CL- 29000 FC 2 SOL 12 SD TR OIL 3 MBL 18 pH 8.5 Ca+ 120 CCI MWD SUMMARY lNTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 179 @ 10504.00000 6 @ 10446.00000 29.7 TRIP GAS N/A CUTTING GAS 0 @ 10673.00000 0 @ 10673.00000 0.0 WIPER GAS 73 CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 23200 @ 10495.00000 1107 @ 10446.00000 4560.2 CONNECTION GAS HIGH 0 ETHANE (G2) 1259 @ 10495.00000 3 @ 10415.00000 205.2 AVG 0 PROPANE (C-3) 432 @ 10495.00000 2 @ 10545.00000 49.6 CURRENT 0 BUTANE (C-4) 261 @ 10495.00000 7 @ 10488.00000 5.0 CtJRRENT BACKGROUND/AVG 23/25 PENTANE (C-5) 0 @ 10673.00000 0 @ 10673.00000 0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY CT20SN50SS10ST20 DAILY ACTIVITY DRILLED AHEAD TO 10685', PULLED 10 STANDS FOR WASHOUT, DRILLED AHEAD TO 10690', RIG SUMMARY REPAIR, NOTE; MAXIMUM GAS OF 179 UNITS FROM SAND @ 10480' - 10530' EPOCN PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY KEVIN MCMULLEN ~ file://C:\Documents%20and%20Settings\EpochAdmin\My%20Documents\My%20Wells\Br... 4/6/2007 ~ ~ Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~~~~,~-I Sak River 1 REPORT FOR JACK KEENER DATE Mar 30, 2007 DEPTH 10876.00000 PRESENT OPERATION RIG REPAIR TIME 23:59:00 YESTERDAY 10673.00000 24 HOUR FOOTAGE 203 CASING INFORMATION 9 5/8 @ 4020 DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 10790.88 3.54 207.61 9108.69 BIT INFORMATlON INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2 8.75 SEC DBS FSF2536 5X17 4036 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 172.4 @ 10757.00000 15.0 @ 10822.00000 68.7 95.32889 FT/HR SURFACE TORQUE 20105 @ 10797.00000 14956 @ 10859.00000 17970.8 16883.17383 AMPS WEIGHT ON BIT 68 @ 10692.00000 2 @ 10726.00000 14.6 19.50726 KLBS ROTARY RPM 107 @ 10809.00000 78 @ 10768.00000 94.8 97.10896 RPM PUMP PRESSURE 2589 @ 10869.00000 1896 @ 10785.00000 2428.6 2548.38208 PSI DRILLING MUD REPORT DEPTH 10827 MW 10.4 VIS 54 PV 21 YP 25 FL 5.2 Gels 11/23/31 CL- 30000 FC 1 SOL 11 SD TR OIL 3 MBL 20 pH 8.5 Ca+ 180 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 72 @ 10682.00000 5 @ 10690.00000 14.3 TRIP GAS N/A CUTTING GAS 0 @ 10876.00000 0 @ 10876.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 14211 @ 10682.00000 1040 @ 10690.00000 2775.2 CONNECTION GAS HIGH 0 ETHANE (C-2) 225 @ 90682.00000 93 @ 10690.00000 65.1 AVG 0 PROPANE (C-3) 20 @ 10682.00000 2 @ 10685.00000 0.2 CURRENT 0 BUTANE (C-4) 0 @ 10876.00000 0 @ 10876.00000 0.0 CURRENT BACKGROUND/AVG 0/0 PENTANE (G5) 0 @ 10876.00000 0 @ 10876.00000 0.0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY SH70ST30 DAILY ACTIVITY RIG REPAIR, DRILLED AHEAD 10685' - 10876' AND CIRCULATED HOIE CLEAN POOH TO 108' SUMMARY FINISH LD BHA , , EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660 REPORT BY KEVIN MCMULLEN i file://C: \Documents%20and%20Settings\EpochAdmin\My%20Documents~IVly%20Wells\Br... 4/6/20Q7 n ~J ~ Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE REPORT ~~ ~+~~~~I Sak River 1 REPORT FOR JACK KEENER DATE Mar 31, 2007 DEPTH 10876 PRESENT OPERATION REAMING TO BOTTOM TIME 23:59 YESTERDAY 10876 24 HOUR FOOTAGE 0 CASING INFORMATION 9 5/8 @ 4020 SURVEY DATA DEPTH INCLINATION AZIMUTH 10790.86 3.54 ? VERTICAL DEPTH 9108.69 BIT INFORMATION NO. SIZE TYPE 3 8.75 SMITH M1519 INTERVAL S/N JETS IN OUT FOOTAGE JX1364 4x14, 3x15 10876 CONDITION REASON HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENTAVG RATE OF PENETRATION SURFACETORQUE WEIGHT ON BIT ROTARY RPM PUMP PRESSURE @ @ @ @ @ @ @ @ @ @ FT/HR AMPS KLBS RPM PSI DRILLING MUD REPORT DEPTH 10$76 MW 10.4 VIS 50 PV 21 YP 25 FL 5.2 Gels 10/24/32 CL- 31000 FC 1 SOL 11 SD TR OIL 3 MBL 20 pH 8.5 Ca+ 180 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS CUTTING GAS @ @ @ @ TRIP GAS 703 WIPER GAS N/A CHROMATOGRAPHY(ppm) SURVEYO METHANE (C-1) ETHANE (G2) PROPANE (C-3) BUTANE (C-4) PENTANE (C-5) @ @ @ @ @ @ @ @ @ @ CONNECTION GAS HIGH 0 AVG 0 CURRENT 0 CURRENT BACKGROUND/AVG 340/ HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY NO DRILLING SINCE LAST REPORT DAILY ACTIVITY FINISH TRIP OUT; TEST BOPs; TRIP IN TO 4070 AND TEST MWD TOOLS; CONTINUE TRIP IN HOLE; SUMMARY REAMING TO BOTTOM AT REPORT TIME. EPOCH PERSONNE~ ON BOARD 3 DAILY COST $3660 REPORT BY JOHN RUSTIN . file://C: \Documents%20and%20 S ettings~EpochAdmin\My%20Documents~lvly%20 Wells\Br... 4/6/2007 ~ ~ Daily Report Page 1 of 1 Brooks Range Petroleum DAILY WELLSITE ~~ ET'~-~`~l~T~ ll J 1Z REPORT ... Sak River 1 REPORT FOR JACK KEENER/CHARLIE HENLEY DATE Apr 01, 2007 DEPTH 11436 PRESENT OPERATION DRILLING TIME 23:59 YESTEF2DAY 10876 24 HOUR FOOTAGE 560 CASING INFORMATION 9 5/8 @ 4020 DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 11341.09 1.97 142:33 9657.49 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 8.75 SMITH M1519 JX1364 4x14, 3x15 10876 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 487.0 @ 10879.00000 5.9 @ 11349.00000 99.2 53.05040 FT/HR SURFACE TORQUE 21229 @ 11195.00000 -3 @ 11434.00000 5384.0 3.84565 AMPS WEIGHT ON BIT 60 @ 11067.00000 -28 @ 11224.00000 17.3 23.29786 KLBS ROTARY RPM 97 @ 10876.00000 -2 @ 11435.00000 14.5 -2:32885 RPM PUMP PRESSURE 3418 @ 11346.00000 2087 @ 10932.00000 2748.0 2860.70923 PSI DRILLING MUD REPORT DEPTH 11391 MW 10.4 VIS 50 PV 20 YP 31 FL 5.1 Gels 19/35/51 CL- 32000 FC 1 SOL 11 SD TR OIL 3 MBL 16 pH 8.5 Ca+ 140 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 385 @ 10877.00000 10 @ 11271.00000 56.5 TRIP GAS N/A CUTTING GAS 0 @ 11436,00000 0 @ 11436.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 73647 @ 10877,00000 2006 @ 11214.00000 9175.9 CONNECTION GAS HIGH 0 ETHANE (G2) 2329 @ 10881.00000 65 @ 11214.00000 348A AVG 0 PROPANE (C-3) 1089 @ 10937.00000 27 @ 10877.00000 230.0 CURRENT 0 BUTANE (C-4) 590 @ 10937.00000 1 @ 11181.00000 89.9 CURRENT BACKGROUND/AVG 36/40 PENTANE (C-5) 20 @ 11Q96.00000 0 @ 11036.00000 9.0 HYDROCARBON SHOWS INTERVAL LITHOLOGYIREMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY SHALE 60%, CLAY 10%, SILTSTONE 20% DAILY ACTIVITY SUMMARY DRILLING AND SLIDING FROM 10876 TO 11436. EPOCH PERSONNEL ON 80ARD 3 DAILY COST $3660 REPORT BY JOHN RUSTIN i file://C:\Documents%20and%20 S ettings\EpochAdmin~lVly%20Documents\My%20 Wells\Br... 4/6/2007 ~ ~ Daily Report Page 1 of 1 Brooks Range Petroleum DAI ~TE ~~ ~~~~~ EPORT Sak River 1 REPORT FOR CHARLIE HENLEY/JACK KEEN ER DATE Apr 02, 2007 DEPTH 11883 MD / 10186.91 TVD PRESENT OPERATION DRILLWG TIME 23:59 YESTERDAY 11436 / 9752.60 24 HOUR FOOTAGE 447 / 434.31 CASING INFORMATION 9 5/8 @ 4020 DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 11814.57 18.15 170.62 10121.88 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 8.75 SMITH JX1364 4x14, 3x15 10876 1007 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 1345:3 @ 11500.00000 6.0 @ 11729.00000 122.4 16.92716 FTlHR SURFACE TORQUE 18041 @ 11579.00000 3 @ 11807.00000 4765.1 3.84565 AMPS WEIGHT ON BIT 74 @ 11624.00000 14 @ 11735.00000 23.9 31.20252 KLBS ROTARY RPM 63 @ 11674.00000 2 @ 11441.00000 15.4 2.31325 RPM PUMP PRESSURE 3261 @ 11767.00000 2354 @ 11582.00000 2874.2 2736.51709 PSI DRILLiNG MUD REPORT DEPTH 11843 MW 10.4 VIS 62 PV 23 YP 34 FL 5.0 Gels 19/37/57 CL- 29000 FC 1 SOL 11 SD 075 OIL 3 MBL 19 pH 9.0 Ca+ 160 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 388 @ 11756:00000 12 @ 11634.00000 57.8 TRIP GAS N/A CUTTING GAS 0 @ 11883,00000 0 @ 11883.00000 0.0 WIPER GAS N/A CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 50793 @ 11756.00000 2322 @ 11634.00000 7097,0 CONNECTION GAS HIGH 0 ETHANE (C-2) 2683 @ 11756.00000 59 @ 11632.00000 289.7 AVG 0 PROPANE (C-3) 2439 @ 11756.00000 49 @ 11545.00000 274.2 CURRENT 0 BUTANE (C-4) 1938 @ 11746.00000 0 @ 11544.00000 130.0 CURRENT BACKGROUND/AVG 50/40 PENTANE (G5) 584 @ 11770.00000 47 @ 11762.00000 12.2 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY SHALE 40%, SILTSTONE, 30%, SAND 20%, CLAY 10% DAILY ACTIVITY SUMMARY DRILLING AND SLIDING FROM 11436 TO 11883, DRILLING AHEAD AT REPORT TIME. EPOCH PERSONNEL ON BOARD 3 DAILY COST $3660 REPORT BY JOHN RUSTIN . file://C:\DOCUMENTS%20AND%20 SETTINGS\EPOCHADMIN\MY%20DOCUMENTS... 4/6/2007 ~ G Daily Report Page 1 of 1 Brooks Range Petroleum Nabors 27E DA(LY WELLSITE RE PORT ~~ ~~~~;~ Sak River 1 REPORT FOR Charlie Henley / Jack Keener DATE Apr 03, 2007 DEPTH 13030' PRESENT OPERATION Drilling ahead TIME 00:55:17 YESTERDAY 11883' 24 HOUR FOOTAGE 114T CASING INFORMATION 9 5/8" @4020' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 8 3/4" Smith M1519 JX1364 4X14, 3x15 10,876' DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 422.9 @ 11887' 12.5 @ 13018' 100.1 49.55128 FT/HR SURFACE TORQUE 22941 @ 13025' 3 @ 12177' 16200.8 17553A2539 AMPS WEIGHT ON BIT 47 @ 12179' 2 @ 13018' 14.8 3.54757 KLBS ROTARY RPM 90 @ 12957' -2 @ 12162' 69.8 76.41940 RPM PUMP PRESSURE 3567 @ 12767' 2566 @ 13028' 3207.3 2694.73511 PSI DRILLING MUD REPORT DEPTH 11969' MW 10.3 VIS 50 PV 24 YP 26 FL 5.8 Gels 19/37/44 CL- 30000 FC 9 SOL 11.5 SD TR OIL 3/86 MBL 99.5 pH 8.5 Ca+ 180 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH lOW AVERAGE DITCH GAS 383 @ 12618' 12 @ 11951' 147.5 TRIP GAS n/a CUTTING GAS @ @ WIPER GAS n/a CHROMATOGRAPHY(ppm) SURVEYO METHANE (C-1) 41929 @ 12042' 2056 @ 11951' 13045.5 CONNECTION GAS HIGH 98 ETHANE (G2) 3411 @ 12618' 80 @ 11951' 1129.8 AVG 22 PROPANE (C-3) 3027 @ 12618' 65 @ 11951' 983.8 CURRENT 84 BUTANE (C-4) 2110 @ 12618' 39 @ 11951' 691.7 CURRENT BACKGROUND/AVG 77 PENTANE (C-5) 1185 @ 12618' 0 @ 12140' 349.7 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTlON LITHOLOGY PRESENT LITHOLOGY Sand / Sandstone 40%, Shale 40%, Siltstone 20% DAILY ACTIVITY SUMMARY Drilling ahead, managing pump rate with #2 pump. Drilled ahead to 13,030' at report time. EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660.00 REPORT BY James Kvidera . file:UC:\DOCUMENTS%20AND%20 SETTINGS\EPOCHADMIN\MY%20DOCUMENTS ... 4/6/2007 i ~ Daily Repart Page 1 of 1 Brooks Range Petroleum Nabors 27E DAlLY WELLSITE REPORT ~~ ~~~~,~ Sak River 1 REPORT FOR Charlie Henley / Jack Keener DATE Apr 04, 2007 DEPTH 13030' MD / 11271.59' TVD PRESENT OPERATION Drilling ahead TIME 00:55:17 YESTERDAY 11883' MD / 24 HOUR FOOTAGE 1147 CASING INFORMATION 9 5/S" @ 4020' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 8 3/4" Smith M1519 JX1364 4x14, 3x15 10,876' DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 422.9 @ 11887' 12.5 @ 13018' 100.1 49.55128 FT/HR SURFACE TORQUE 22941 @ 13025' 3 @ 12177' 16200.8 17553.02539 AMPS WEIGHT ON BIT 47 @ 12179' 19 @ 12708' 14.7 3.54757 KLBS ROTARY RPM 90 @ 12957' 2 @ 12162' 69.8 76.41940 RPM PUMP PRESSURE 3567 @ 12767' 2566 @ 13028' 3207.3 2694.73511 PSI DRILLING MUD REPORT DEPTH 11969 MW 10.3 VIS 50 PV 24 YP 26 FL 5.8 Gels 19/37/44 CL- 30000 FC 1 SOL 11.5 SD Tr OIL 3/86 MBL 19.5 pH 8.5 Ca+ 160 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 383 @ 12618' 12 @ 11951' 147.5 TRIP GAS n/a CUTTING GAS @ @ WIPER GAS n/a CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1) 41929 @ 12042' 2056 @ 11951' 13037.4 CONNECTION GAS HIGH 98 ETHANE (C-2) 3411 @ 12618' 80 @ 11951' 1129A AVG 22 PROPANE (C-3) 3027 @ 12618' 65 @ 11951' 983.7 CURRENT 84 BUTANE (C-4) 2110 @ 12618' 39 @ 11951' 693.1 CURRENT BACKGROUND/AVG 77 PENTANE (C-5) 1185 @ 12618' 0 @ 12140' 352.4 HYDROCARBON SHOWS WTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT UTHOLOGY Sand / Sandstone 40%, Shale 40%a, Siltstone 20% DAILY ACTIVITY SUMMARY Drilling ahead, managing pump rate with #2 pump. Drilled ahead to 13,030' at report time. EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660.00 REPORT BY James Kvidera ~ file://C:\Documents%20and%20Settings\EpochAdmin\My%20Documents\My%20 Wells\Br... 4/6/2007 ~ ~ Daily Report Page 1 of 1 Brooks Range Petroleum Nabo~s 2~E DAILY WELLSITE RE PORT ~~ ~~'{~~,~-I Sak River 1 REPORT FOR Jack Keener DATE Apr 05, 2007 DEPTH 13110' PRESENT OPERATION POOH TIME 06:51:57 YESTERDAY 13030' 24 HOUR FOOTAGE 80 CASING INFORMATION 9 5/8" @ 4020' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PUILED 3 8 3/4" Smith M1519 JX1364 4x14, 3x15 10,876' DRILLING PARAMETERS HIGH LOW AVERAGE CURRENTAVG RATE OF PENETRATION 107.4 @ 13042' 8.2 @ 13063' 46.8 25.64103 FT/HR SURFACE TORQUE 23145 @ 13082' 15876 @ 13108' 18064.4 16646.84766 AMPS WEIGHT ON BIT 25 @ 13098' 1 @ 13038` 10.9 11.69087 KLBS ROTARY RPM 85 @ 13107' 19 @ 13047' 76.0 84.56416 RPM PUMP PRESSURE 3111 @ 13043' 2542 @ 13109' 2815.3 2658.95459 PSI DRILLING MUD REPORT DEPTH 13110' MW 10.6 VIS 53 PV 26 YP 29 FL 5.5 Gels 20/34/46 CL- 32000 FC 1 SOL 12 SD Tr OIL 3/85 MBL 19 pH 8.5 Ca+ 200 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 118 @ 13062' 20 @ 13107' 59.4 TRIP GAS 818 CUTTING GAS @ @ WIPER GAS 42 CHROMATOGRAPHY (ppm) SURVEY 0 METHANE (C-1} 10315 @ 13062.00000 2505 @ 13107' S740.9 CONNECTION GAS HIGH 24 ETHANE (G2) 744 @ 13031' 140 @ 13107' 385A AVG 0 PROPANE (C-3) 719 @ 13031' 129 @ 13107' 352.2 CURRENT 2 BUTANE (G4) 546 @ 13031' 111 @ 13107' 281.8 CURRENT BACKGROUND/AVG 0 PENTANE (G5) 464 @ 13062' 118 @ 13107' 239A HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION IITHOLOGY PRESENT LITHOLOGY SHALE 50%, SILTSTONE 30%, SANDSTONE 20% DAlLY ACTIVITY Drilled ahead to 13,062' Circulated, Made repairs to #1 pump, Drill ahead to 13,110', Short trip to 9010', Wash SUMMARY and ream to bottom at tight spots, Circulate and pump Hi Vis sweeps to clean hole, Pump slug and POOH EPOCH PERSONNEL ON BOARD 4 DAILY COST $3660.00 REPORT BY James Kvidera ~ file://C:\Documents%20and%20Settings\EpochAdmin~Nly%20Documents~lVly%20 Wells\Br... 4/6/2007 ~ r~ ~_J Daily Report Page 1 of 1 Brooks Range Petroleum Nabors27E DAILY WELLSITE REPORT ~~ ~+~~~I~ Sak River 1 REPORT FOR Jack Keener DATE Apr 06, 2007 DEPTH 13110' PRESENT OPERATION Running Wireline TIME 00:51:57 YESTERDAY 13110' 24 HOUR FOOTAGE 0 CASING INFORMATION 9 5/8" @ 4020' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICA~ DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 8 3/4" Smith M1519 JX1364 4x14, 3x15 10,876' 13,110' 2,234' 40:28 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0@ FT/HR SURFACETORQUE 0 @ 0 @ AMPS WEIGHT ON BIT 0 @ 0@ KLBS ROTARY RPM 0 @ 0@ RPM PUMP PRESSURE 0 @ 0@ PSI DRILLING MUD REPORT DEPTH 11310 MW 10.6 VIS 52 PV 20 YP 31 FL 6 Gels 22/34/46 CL- 30000 FC 1 SOL 12 SD Tr OIL 3/85 MBL 18.75 pH 8.6 Ca+ 200 CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 0 @ 0 @ TRIP GAS 0 CUTTING GAS @ @ WIPER GAS 0 CHROMATOGRAPHY(ppm) SURVEYO METHANE (C-1) 0 @ 0 @ CONNECTlON GAS HlGH 0 ETHANE (C-2) 0 @ 0 @ AVG 0 PROPANE (C-3) 0 @ 0 @ CURRENT 0 BUTANE (C-4) 0 @ 0 @ CURRENT BACKGROUND/AVG 0 PENTANE (G5) 0 @ 0 @ HYDROCARBON SHOWS INTERVA~ LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY ACTIVITY SUMMARY POOH, Break and L/D BHA, Rig up Wireline logging tools, RIH w/ wireline tools, begin wireline logging. EPOCH PERSONNEL ON BOARD 4 DAILY CdST $3660.00 REPORT BY James Kvidera • file://C:\Documents%ZOand%20Settings\EpochAdmin\My%20Documents\My%20 Wells\Br... 4/6/2007