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199-013
Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning. They are available in the original file, may be scanned during the rescan activity or are viewable by direct inspection of the file. L ~ ~- ~/-'-~- Well History File Identifier ' Organization ~one) E] RESCAN o Color items: [~"~Gr~yscale items: [] Poor Quality Originals: Other: DIGITAL DATA [] Diskettes, No. [] Other. No/Type TOTAL PAGES: ,.~ "~ NOTES: ORGANIZED BY: BEVERLY BR~HERYL MARIA LOWELL PROOFED BY: BEVERLY B~T SHERYL MARIA LOWELL PAGE.~ ,~~' (at the time of scanning) SCANNED BY'. BEVERLY BRE~SHERYL MARIA LOWELL OVERSIZED (Scannable) [] Maps: [] Other items scannable by large scanner OVERSIZED (Non-Scannable) [] [] By: Logs of various kinds Other ISI'~ Staff Proof Date: ReScanned (done) RESCANNED BY: BEVERLY General Notes or Comments about this file:.~:~ BREN VINCENT SNERYL,~LOWELL DATE: PAGES: Quality Checked (done) Rev1 NOTScanned,wpd ALAS~ OIL AND GAS CONSERVATION COMMISSION TONY KNOWLES, GOVERNOR 333 W. 7TM AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 R. Marty Lemon Phillips Alaska, Inc. PO Box 100360 Anchorage AK 99510 September 6, 2001 Re: Cancelled or Expired PTD's. Dear Lemon: The Alaska Oil and Gas Conservation Commission ("AOGCC") approved the following referenced permit to drills. The AOGCC has a long-standing policy of releasing cancelled or expired permits two years from the date the application was approved by the AOGCC. The following files are scheduled to be released October 1, 2001. Permit to Drill No.'s: 97-161 98-027 98-057 98-073 99-013 Sincerely, J0dy~rol6~m - _ ~___~ Executive Secretary Memorandum State of Alaska Oil and Gas Conservation Commission To: Well File 199-013 DATE February 22, 2001 Re: Expired Permit Action WELL: Kuparuk Riv Unit 1C-21XX APl # 50-029-22940-95 Permit Issued: 02/22/1999 This memo will remain at the front of the subject well file. Our adopted conventions for assigning APl numbers, permit numbers and well names did not specifically address expired or cancelled permits. This omission has caused some inconsistencies in the treatment of these kinds of applications for permit to drill. Operators have asked us to adopt formal procedures for this class of permit application in order to prevent future database disparities. If a permit expires or is cancelled by an operator, the permit number of the subject permit will remain unchanged. The APl number and in some instances the well name reflect the number of preexisting redrills and or multilaterals in a well. In order to prevent confusing a cancelled or expired permit with an active well or multilateral these case sensitive well identifiers will be changed for expired and cancelled applications for permits to drill. The APl number for this cancelled or expired permit is modified so the eleven and twelfth digits is -95. The well number for a cancelled or expired permit is modified with an appended XX. CANCELED PERMITS ARE RELEASABLE 2 years from the date on the letter received from the operator requesting the permit canceled.. (Memorandum January 23, 1997 by Dave Johnston, subject: Canceled and Expired Permits) EXPIRED PERMITS ARE RELEASABLE 2 years from the date on the application was issued by the commission, unless the operator ask for extended confidentiality. AOGCC database has been changed to reflect these changes to this permit. Steve McMaihs Statistical Technician TONY KNOWLE$, GOVERNOR ALASKA OIL AND GAS CONSERVATION COMMISSION February 22, 1999 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 Chip Alvord Drilling Team Leader ARCO Alaska, Inc. P O Box 100360 Anchorage, AK 99510-0360 Re~ Kuparuk River Unit 1 C-21 ARCO Alaska, Inc. Permit No: 99-13 Sur Loc: 1601'FNL, 1191'FWL, Sec. 12, TI 1N, R10E, UM Btmhole Loc. 9'FSL, 1135'FWL, Sec. 31, T12N, R11E, UM Dear Mr. Alvord: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. Annular disposal of drilling wastes will not be approved for this well until sufficient data is submitted to ensure that the requirements of 20 AAC 25.080 are met. Annular disposal of drilling waste will be contingent on obtaining a well cemented surface casing confirmed by a valid Formation Integrity Test (FIT). Cementing records, FIT data, and any CQLs must be submitted to the Commission on form 10-403 prior to the start of disposal operations. Please note that any disposal of fluids generated from this drilling operation which are pumped down the surface/production casing annulus of a well approved for annular disposal on Drill Site lC must comply with the requirements and limitations of 20 AAC 25.080. Approval of this permit to drill does not authorize disposal of drilling waste in a volume greater than 35,000 barrels through the annular space of a single well or to use that well for disposal purposes for a period longer than one year. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25 035. Sufficient notice (approximately 24 hours) must be given to allow a representative of the Commission to witness a test of BOPE installed prior to drilling new hole. Notice may be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. Chairman BY ORDER OF THE COMMISSION dlf/Enclosures cc~ Department of Fish & Gmne, Habitat Section w/o encl. Depamnent of Environmental Conservation w/o encl. STATE OF ALASKA ALA~A OIL AND GAS CONSERVATION COMbi-.-~SION PERMIT TO DRILL 20 AAC 25.005 la. Type of Work Drill X Redrill I lb Type of Well Exploratory Stratigraphic Test Development Oil X Re-Entry Deepen[ Service Development Gas SingleZone X Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool ARCO Alaska, Inc. RKB 41', Pad 60' feet Kuparuk River Field 3. Address 6. Property Designation Kuparuk Oil Pool P. O. Box 100360, Anchorage, AK 99510-0360 ADL 47449 4. Location of well at surface 7. Unit or property Name 11. Type Bond (see 20 AAC 25.025) 1601' FNL, 1191' FWL, Sec. 12, T11 N, R10E, UM Kuparuk River Unit Statewide At top of productive interval (@ TARGET ) 8. Well number Number 280' FNL, 915' FWL, Sec. 6, T11N, R11E, UM 1C-21 #U-630610 At total depth 9. Approximate spud date Amount 9' FSL, 1135' FWL, Sec. 31, T12N, R11 E, UM 2/17/99 $200,000 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) property line lC-03 11461' MD 9' @ TD feet 31.6' @ 400' feet 591 6845' TVD feet 16. To be completed for deviated wells 17. Anticipated pressure (see 20 AAC 25.035(e)(2)) Kickoff depth 400' feet Maximum hole angle 58.09° Maximum surface 2638 psig At total depth (TVD) 3383 psig 18. Casing program Setting Depth size Specifications Top Bottom Quantity of cement Hole I Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 24"I 16" 62.5# R-3 Weld 79' 41' 41' 120' 120' 9 cu yds. High Early 12.25" 9.625" 40# L-80 BTC 7173' 41' 41' 7214' 4600' 1021 Sx Arcticset III L & 364 Sx Class G 8.5" 7" 26# L-80 BTC-Mod 11420' 41' 41' 11461' 6845' 208 sx Class G 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs(measured) i' i~. ~!~ true vertical feet Effective depth: measured feet Junk (measured) ~ ,,~. ~ ~ r,....,i ~¢.,.-, ,.,,~,~ ..~, -~. ~.~;-~ -~....~_ ~-'-~.. true vertical feet ~'~.~;¢~ t,~,~ ¢;;.; ~,~ Casing Length Size Cemented Measured depth True Vertical depth Structural Conductor Surface Intermediate Production Perforatio;i;;;th: measured 0 RIG IN A L true vertical 201 Attachments Filing fee X Property plat E] BoP Sketch X Diverter Sketch X Drilling program X Drilling fluid program X Time vs depth plot F,~ Refraction analysis E] Seabed report r-~ 20 AAC 25.050 requirements X 21. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~ ,~ ~,~"~i Title Kuparuk Drilling Team Leader Date ~_.(~..l~~ /' "" Commission Use Only Permi~:~C;c_be~/350' (~l'2'~'APl number_ 2. ~ ~' ~'~::~ I Appr°val date ¢~, "' O~C~-' ¢¢ ISee c°ver letter f°rother requirements Conditions of approval Samples required E} Yes ]~ No Mud log required BI Yes ~ No Hydrogen sulfidemeasures [~ Yes r~ No Directional surveyrequired J~ Yes BI No Required working pressure for BOPE F,~ 2M BI ~ BI 5M r'~ 1OM r-] 15M Other:,,,,..,~,~d~.~ ~:~V Approved by !.",an~'o¥ (}gohs!i by order of Commissioner the commission Date Form 10-401 Rev. 7-24-89 Submit in triplicate Drill and Case Plan for lC-21 Kuparuk Producer General Procedure: 1. Excavate cellar, install cellar box, set and cement 16" conductor to +/- 120' RKB. Weld landing ring on conductor. 2. Move in / rig up drilling rig. Install diverter & function test same. . Spud and directionally drill 12 1/4" hole to the surface casing point at 7214' MD. Run MWD / LWD logging tools in drill string as required for directional monitoring and formation data gathering. 4. Condition hole for casing, trip out. . · Run and cement 9 5/8" 40# L80 BTC casing string to surface. Employ lightweight permafrost cement lead slurry to assure cement returns to the surface in a one stage job. Adequate excess cement will be pumped to ensure cement reaches the surface during the cement job. · TAM Port Collar will be placed in the casing string at 1000' MD to be used in the event that cement does not reach the surface in the primary one stage job. 6. Nipple down diverter, nipple up BOP's. Test BOP's. Notify AOGCC 24 hours before test . Make up 8 Y2" bit and BHA and RIH to top of float equipment · Pressure test casing to 3000 psi for 30 minutes · Record results and fax to town , Drill float equipment and approximately 20' of new hole · Perform LOT · Record results and fax to town Drill 8 1/2" hole to 100' above the Kuparuk Formation · Perform a second LOT and determine an acceptable kick tolerance · If kick tolerance is acceptable, 8 1/2" hole will be drilled to TD at 11,461' · If kick tolerance is unacceptable, 7" casing will be run to top Kuparuk 10. Run and cement 7" 26# L80 BTC-Mod Pressure test well to 3000 psi for 30 minutes · Record results and fax to town 11. Run and land 3 Y2" tubing with gas lift completion · Pressure test tubing 12. Nipple down BOP's. Install production tree and pressure test same. 13. Secure well, release rig 1 C-21 Page 1 SG,02/04/99,v1 DRILLING FLUID PROGRAM, PRESSURE CALCULATIONS & DRILLING AREA RISKS Kuparuk lC-21 Producer Drilling Fluid Type Surface Hole: Production Hole: Extended Bentonite Slurry Low Solids Non-Dispersed System Drilling Fluid Properties: Formation Density FV ppg sec/qt Permafrost 8.9 120-140 West Sak 9.5-9.8 50-80 Colville 8.8-9.0 35-40 HRZ 9.5 40-50 Kalubik 9.5 40-50 Kuparuk C Sands 10.4-10.6 50-60 YP PV Filtrate lb/100 ft2 cP mi/30 min 25-40 16-20 12-15 15-25 20-26 7-8 5-8 4-8 8-15 8-20 15-25 5-6 8-20 15-25 5-6 (Tau 0) 7-9 20-30 12.0 Drilling Fluid System: Tandem Brandt Scalping Shale Shakers Triple Derrick Flow Line Cleaners Solids Processing System to Minimize Drilling Waste Desander, Mud Cleaner, Centrifuges, Degasser Pit Level Indicator (Visual and Audio Alarm) Trip Tank Fluid Flow Sensor Fluid Agitators Mud Hoppers with Mixing Pumps MASP (Maximum Anticipated Surface Pressure): Based on estimated Static Bottom Hole Pressure data from nearby wells, expected reservoir pressures in the Kuparuk sands in the 1C pad area are approximately 9.7 ppg EMW (equivalent mud weight), depending on the TVD of the sand layer being evaluated. Assuming a 150 psi overbalance is required to safely drill and trip in this formation, then a required mud weight of 10.1 ppg can be predicted as a maximum mud weight required to safely drill this formation, assuming a TVD of 6600'. Calculating MASP based on the most recent reservoir pressure data from nearby wells, and assuming a gas gradient of 0.11 psi/ft from the Kuparuk base to surface, the following MASP can be computed: MASP = (6765 ft)(0.5 - 0.11 psi/ft) = 2638 psi 1 C-21 Page 1 SG,02/04/99,v. 1 Drilling Area Risks: Drilling risks in the lC-21 area are lost circulation and potential borehole instability in and below the permafrost formation. Lost circulation will be addressed with lost circulation material (LCM) and reduced circulating rates as needed. Borehole instabilty will be addressed through mud treatments and control drilling if necessary. In addition, there is a strong likelihood of shallow gas while drilling off Drillsite 1C. This will be handled by control drilling and mud treatments. Well Proximity Risks: The nearest existing well to 1C-21 is 1C-03. As designed, the minimum distance between the two wells would be 31.6' at 400' MD. Annular Pumping Activities: Incidental fluids generated from drilling operations will be hauled to the nearest permitted disposal well or will be pumped down the surface / production casing annulus of a annular disposal permitted existing well on DS-lC. That annulus will be left with a non-freezing fluid during any extended shut down (> 4 hr) in pumping operations. The lC-21 well will be freeze protected after running the 3 Y2" tubing and prior to the drilling rig moving off of the well. We request that lC-21 be permitted for annular pumping of fluids occurring as a result of drilling operations, per regulation 20 AAC 25.080. Any zones containing significant hydrocarbons will be isolated prior to initiating annular pumping. There will be no USDW's open below the shoe or potable/industrial water wells within one mile of the receiving zone. Reference the enclosed directional drilling plan for other formation markers in this well. Surface casing will be set in the Cretaceous shales below the base of the West Sak Sands. These 300-500' thick shales are part of the Colville Group and are known to provide vertical barriers to fluid flow. The surface casing shoe will be set a minimum of 100' vertically below the base of the West Sak into the heart of the shales. The maximum volume of fluids to be pumped down the annulus of this well will not exceed 35,000 bbl without the specific permission of the AOGCC. Fluid densities will range from diesel to a maximum of 12.0 ppg for drilling fluid wastes. Using 12.0 ppg fluid and the rig's specified maximum pumping pressure of 1,500 psi for annular injection, the maximum pressure at the surface casing shoe is estimated by: Max Shoe Pressure = (12.0 ppg) * (0.052) * (Surf. Shoe TVD) + 1,500 psi : (12.0 ppg) * (0.052) * (4600') + 1,500 psi Max Pressure = 4,370 psi This pressure is conservative, since frictional losses while pumping have not been taken into consideration. The surface and production casing strings exposed to the annular pumping operations have sufficient strength by using the 85% collapse and burst ratings. Fluids to be disposed of in the annulus will be limited to drilling wastes associated with drilling a well as defined in 20 AAC 25.080 (h). 1 C-21 Page 2 SG,02/04/99,v.1 1C-21 Producer Com[ 8 1/2" Hole / 7" Longstring Casing Surface cs§, 9 5/8" 40¢ L-80 BTC (+/-7214' MD / 4600' TVD) All depths reference Parker 245 RKB Production osg. 7" 26# L*80 BTC-Mod TD ~o surface (+/- 11461' MD / 6845' TVD) L. 3-1/2" 5M FMC Gen IV tubing haf~ger with 3-1/2" L~80 EUE 8RD*Mod pin down K. 3-1/2" 9,3# L-80 EUE 8RD-Mod tubing to surface 3-1/2" Camco W Nipple w/2.81 Selective Profile (No pups) L 3-1/2" 9.3# L*80 EUE 8RD-Mod tubing to Profile Nipple w/five 3 1/2" x 1" mandrels w/DV's and BK latches. EUE 8rd-Mod connections and 3 1/2" x 10' pups, Ma¢~drels spaced out as follows: GLM # TVD-RKB MD-RKB Size-Valve TBD TBD TBD TBD H, 3-1/2" x 1~1/2" Camco 'MMM' mandrel w/RP Shear Valve & RK latch, 3-1/2" x 10' pups installed, L-80 EUE 8RD-Mod G. t jt 3-1/2" L-80 EUE 8RD*Mod tubing F. 3 1/2" Camco W Nipple w/2.81 Selective Profile (No pups) E. 1 jt 3-1/2" L-80 EUE 8RD-Mod tubing Mod pups C, 1 jl 3-1/2" L*80 EUE 8RD-Mod tubing B. 3-1/2" Camco "D" I8ndi~lg topple w/2.75" ID, NoGo orofile. EUE 8RD-Mo(] (No pups) A, Tubing Tail with 3 1/2" Shear Out Sub to be set +/* 100 auove tod Kuparuk (10' 3 t/2" EUE 8rd Moc ouD above) Future Per~rations SG, 2/4/98. v.1 500 500 1000 1500 ~-~ 2000 '4-- 2500 ,-i-- ~3 5000 0 5500 ~. 4000 I--- 4500 I v 5000 55OO ARCO Alaska, Inc. Sfl'uef~m: Pod I C W~ll: 21 Fllld; Kul~aruk River Unit Loe~tlon: Norfh $1ol:)e, Ak~ko RKB Elevot;on: 101' KOP - 0.00 Inc, 400.00 Md, 400.00 Tvd, 0.00 Vs 5.00 ~reoted by: A~drews For: 9.00 Dote i~tted: 27.00 Tru~ V~rt~cul D~p*h~ Ore r~ll~er~ce~e 59.00 45.00 INTEQ 51.00 Bose Permofrost - 49.44 Inc, 2048.05 Md, 1851.00 Tvd, 668.02 Vs 57.00 EOC - 58.09 Inc, 2556.22 Md, 2021.18 Tvd, 900.24 Vs 37.14 AZIMUTH 0eS3' (TO TARGET) ***Plone of Proposol*** Top West $ok - 58.09 Inc, 5859.24 Md, 3873.00 Tvd, 3875.78 Vs Bose West Sok (W$10) - 58.09 Inc, 6856.15 Md, 4400.00 Tvd, 4720.00 Vs 9 5/8. Csq Pt - 58.09 Inc_7214.48 Md,4600.O0 Tvd, 5041.15 Vs ',~'"~,_ C80 (KIO') - 58.09 Inc 7;310.96 Md 4651.00 Tvd 512.3.04 Vs v ~ConSp SS - 58.09 ,n~', 7518.52 Ma; 4655.00 Tva', 5129.46 Vs C50 - 58.09 Inc, 8750.51 Md, 5412.00 Tvd, 6345.01 Vs TARGET / / TANGENT ANGLE ~. c4o (Ks> - 58.0o ,.c. 9369.09 .d. 5739.00 Tvd, 6670.08 vs 6000 58.09 DEG "~ c3o (K2) - 58.09 ,.c, 10059.54 .d, 6704.00 Tvd. 7456.78 Vs C20 (HRZ Mid Polnt) - 58.09 Inc 10294.11 Md, 6228.00 Tvd, 7655.29 Vs Bose HRZ - 58.09 lac 10592~86.00 Tvd, 7908.99 Vs K- 1 Morker - 58.09 '~~; %VO-~."B,~'Vs 6500 Top D Shole - 58.09 I~, 6572.00 Tvd, 8207.66 Vs Torget / Top C4 - 58 09 Inc, 11033 75~19.00 Tvd, 62_83.1__5 _Vs · Top C3 '--' 58.09 Inc, 11099.~6 Md, 6654.00 Tvd, ~339.33 Vs Top C2 - 58.09 Inc, 11151.03 Md, 6681.00 Tvd, 8382.69 Vs ~ 7000 Top C1 - 58.09 Inc, 11239.94 Md 6728.00 Tvd, 8458.16 Vs Top B Shole - 58.09 Inc, 11309.93 M'd, 6765.00 Tvd, 8517.57 Vs TD / 7 Csg Pt - 58.09 Inc, 11461.27 Md, 6845.00 Tvd, 8646.03 Vs 7500 I i I I I I ! I I I I I I i i I I I I ' 1 I I i '1 i I "i ' i i I i i i i I I I I ' I ! I i i ' I i i I I 500 0 500 1000 1500 2000 2500 3000 3500 .4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 Verfical Section (feel) -> Azimuth $7.14 wlfh reference 0.00 N, 0.00 E from slof //21 ARCO Alaska, Inc. $1ruohJre: Pud IC Will: 21 FTdd: Kuparuk River Unft LoGc~on: North Slope, Alaska Easf (feel) -> 400 0 400 800 1200 1600 2000 2400 2800 5200 5600 4000 4400 4~00 5200 5600 6000 6400 TD / 7 Csg Pl. - 6845.00 Tvd, 6892.48 N, 5219.92 E Top B Shale - 6765.00 Tvd, 6790.07 N, 5142.56 E Top C1 - 6728.00 Tvd 6742.71 N, 5106.49 E Top C2 - 6681.00 Tvd, '6682.55 N, 5060.95 E Top C5 - 6654.00 Tvd, 6647.99 N, 5054.75 Target / Top C4 - 6619.00 Tvd, 6605.18 N, 5000.82 Top D Shale - 6572.00 Tvd, 6545.02 N, 4955.26 E K-1 Marker - 6465.00 Tvd, 6406.05 N, 4851.55 E Bose HRZ - 6586.00 Tvd, 6504.95 N, 4774.94 E C20 (HRZ Mid Point) - 6228.00 Tvd, 6102.68 N, 4621.77 E C50 (K2) - 6104.00 Tvd, 5945.95 N, 4501.56 E C40 (K5) - 5759.00 fvd, 5476.72 N, 4147.71 E C50 - 5412.00 Tvd, 5058.14 N, 5850.71 E 6800 7600 J TD LOCATION: I 9' FSL, 11 $5' FWL 7200 SEC. 51, T12N, R11E 6800 TARGET LOCATION: 280' FNL, 915' FWL SEC. 6, T11N, R11E TARGET TVD=6619 TMD = 11054 DEP=8283 NORTH=6605 EAST=5001 64O0 6000 56O0 5200 Com. p S.S - 4655.00 Tvd, 4089.15 N, 5096.84 E C80. (KIO) - 4651.00 Tvd, 4084.01 N, 5092.96 E 9 5/8 Csg Pt - 4600.00 Tvd, 4018.72 N, 5045.52 E Base West Sak (WSIO) - 4400.00 Tvd, 5762.71 N, 2849.65 E Top West Sok - 5873.00 Tvd, 5088.11 N, 2558.74 E 5600 5200 2800 A Z 0 ISURFACE LOCATION: 1601' FNL, 1191' FWL SEC. 12, T11N, RIOE 37.14 AZIMUTH 8283' (TO TARGET) ***Plane of Proposal*** 24O0 2000 1600 1200 EOC - 2021.18 Tvd, 717.66 N, 545.51 E Bose Permafrost - 1851.00 Tvd, 552.54 N, 405.51 E 800 4O0 KOP - 400.00 Tvd, 0.00 N, 0.00 W 400 A Created b~ J~drews For: ~LDBER~ 80 40 0 40 ~0 680 640 600 560 520 480 44O 400 360 320 280 24O 200 160 120 80 90~' 100~' ARCO Alaska, Inc. $1ruotur~: Pod lC Weft: 21 F/rid: Kulmruk River Unit Loooffon: North S~Olm, Alaska 2000 East (feet) -> 120 160 200 240 280 2100 / / / / / /1400 / / / / / 1500 / / / / / /1600 220O 1200/ / / 3000 1100/' / 000 520 560 400 4.40 480 520 / / / ,~/1800 / / / / / / 700 / / / / 3100=, O0 / / / / / / ./1900 1500 11 -'2800 40 ~'- .~1500 100( "~700 ,~300 ,"~00 "-- ,.1400 ./~'00 _~/§ O0 ~1 Z500 0 , /900 ~300 ~' ~ ooo 3o~ ~o '~ /~2 -- __~00 - ~400 ~ ~ ~ ~ 1800 15~~0~-- ~70~ ~ 5oo~3°~ --- ~ ~3oo ,~ ~~~~_ _~'~ 40 I 50~ 500 ~OO 1200 ~0 I I I I I I I I I I I I I I I I ~ 40 0 40 aO ~20 160 320 360 · ~0 440 ~0 520 56O 680 64O 200 240 280 East (feet) -> 600 560 520 480 44.O 4OO 360 A I Z 320 0 280 240 2OO 160 120 80 80 ARCO Alaska, Inc. Slr~olU~l: Pad 1C Weft: 21 FTdd: Kuparuk Rlv~r Unit Loaaffon: North Slope. Alaska East (feet) -> ,:300 400 500 600 700 800 go0 1000 11 O0 1200 1300 1400 1 $00 1 600 1700 1800 1900 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ~ 2,,.~00 _ 2200 ./.5700 ~ / ' - 2200 '4F.// ,,3~oo ~2,oo 21oo /// 000 / 2000 2O00 # 5000 ' / / ~00~5°° / g 2600 500 ,~oo 2~ / oo ,~o0 1100 ~200 210~300 / //~500 ~1000 1000 20O0 / ~o / 900 900 , ,oo · 700 / / ~2000 / ~'~oo ~ 27oo~ ~oo ~ ~,oo ~~oo ~~oo . / . / / /2500 500 500 / 1800 400 ~ ~ ~ ~ ~ ~ ~ ~0 400 500 600 700 800 900 1000 11 O0 1200 1500 1 ~0 1500 16~ 17~ 1800 1 Easf (feel) -> t ARC0 Alaska, Ineio Sh'uolurl: Pod lC Will: 21 FTeld: Kuporuk ~ver Urlff Lomaffon: Norfh S~o;)e,, Alas East (feet) -> 1200 1500 1800 2100 24.00 2700 5000 5300 3600 3900 4200 4500 4800 51 O0 5400 5700 6000 75~0 I I I I I I I I I I I I I I I I I I I I I I I I I I J I I I I 7200 6900 / V 6700 6600 / ~'65oo / 6500 / 6500 / 6000 ,,./61 oo 5700 54O0 / ~' 5700 / ./5500 / 5900 0/5500 1 O0 / ~/5100 / 700 ,,/~oo / O0 ~ 4-700 / O0 / 3900 V' 4500 / / /4-300 5600 / / 41 O0 5300 / ,,,./3900 / '"67 O0 5000 / / =6500 3000 / ,~ '5 700 / / ~"6500 2700 / ~, ~500 / '"61 O0 2700 / / / ~'5900 ,/3500 / 2400 / / ~"5700 O0 / 5500 / O0 ~51 O0 / ~"5500 21 O0 , 300 1 BOO ...... , ........ , , , , , , 1800 1200 1500 1800 2100 2400 2700 $000 5300 5600 5900 4200 4500 4800 51 O0 5400 5700 6000 ' East (feet) -> A 51 O0 I '*- 4800 4500 o Z 4200 24O0 2100 75O0 7200 6900 6600 6500 6000 5700 5400 5~oo A I Z 48O0 0 --,4- 4500 ~ 4200 v 5900 5600 $500 320 330 ARCO Alaska, Inc. 5fruoture : Pad lC Well : 21 FTMd : Kup~ruk River Unif Lo~tlon: North S~ope, Mask= TRUE NORTH 340 -'"~o 10 2O 3O 4O 310 oO ., 400 ,/o ~00 5O 6O 29O HO0 28O 80 270 90 260 250 100 24O 220 210 ~ I ~oo 2aa ~ 190 \ 180 f 8o0 / /1100 I " I I / I/ 16Ci) z 1 70 , ~oo Normal Plmne Travelling Cylinder - Feet All depths shown are Measured depths on Reference Well 150 120 7o 6oc~ ? o 7o~1 500 ~ 600 1 409°%/ 7°°/~°°I~>/ / %800 800/~ //\ ~1 lOO / /~900 For: {~OLDBERG 320 330 340 ARCO Alaska, Inc. Sfruafure: Pad 1C Well : 21 F'leld: Kuparuk River Unlt Location : North S~ope, Alaska TRUE NORTH 55O 0 10. 20 3O 4O 310 5O 3OO 6O 29O 7O 280 8O 27O 9O 26O 100 250 110 240 230 22O 210 / \ I \ ,11200~ 190 1 160 Normal Plane Travelling Cylinder - Feet All depths shown are Measured depths on Reference Well 4-00 150\ 140 \ N, ~6oo 20 1200 \ \ \ % Cr. oted u~. Andr.,~ For: GOLDBERG r,.~ ~ ~ ~ ,,.ii..._ ~ (1~- 24~). 520 330 340 tAt{CO Alaska, Inc. 5"---'-~.tu'---'~TPed 1--7-- --'-;;11 : 2--~-- --- l~eld: Kuparuk R/vet Unlt Lo~atfon: North Slope, AJa~ka TRUE NORTH 55O 0 10 2O 3O 4O 310 50 300 60 29O 7O 280 80 270 1 9O 260 100 25 240 / / / ~23o 22O / / ~ 200 210/ / / / ~0 190 ?~0 170", 160 Normal Plane Travelling Cylinder - Feet All depths shown ore Measured depths on Reference Well ~oo 110 6200 J400 120 2600 130 2ooM x~. 1 4(~x~_ 220(~ \ 50 x~ '~ ~ 2200 2~0~% 520~ % ARCO Alaska, Inc. Pad 1C 21 slot #21 Kuparuk River Unit North Slope, Alaska PROPOSAL LISTING INCLUDING POSITION UNCERTAINTIES by Baker Hughes INTEQ Your ref : 21 Version#5 Our ref : prop3242 License : Date printed : 4-Feb-99 Date created : 17-Dec-98 Last revised : 4-Feb-99 Field is centred on n70 16 18.576,w150 5 56.536 Structure is centred on n70 19 45.173,w149 30 19.124 Slot location is n70 19 29.426,w149 29 44.361 Slot Grid coordinates are N 5968637.015, E 562197.500 Slot local coordinates are 1601.00 S 1191.00 E Projection type: alaska - Zone 4, Spheroid: Clarke - 1866 Reference North is True North ARCO Alaska. Inc. Pad 1C,21 Kuparuk River Unit,North Slope, Alaska Measured Inclin. Azimuth True Vert Depth Degrees Degrees Depth RECTANGULAR COORDINATES PROPOSAL LISTING Page 1 Your ref : 21 Version#5 Last revised : 4-Feb-99 Dogleg Vert Deg/lOOft Sect 0.00 0.00 0.00 0.00 0.00 N 0.00 E 0.00 0.00 400.00 0.00 0.00 400.00 0.00 N 0.00 E 0.00 0.00 500.00 3.00 37.14 499.95 2.09 N 1.58 E 3.00 2.62 600.00 6.00 37.14 599.63 8.34 N 6.32 E 3.00 10.46 700.00 9.00 37.14 698.77 18.75 N 14.20 E 3.00 23.51 800.00 12.00 37.14 797.08 33.27 N 25.20 E 3.00 41.74 900.00 15.00 37.14 894.31 51.88 N 39.29 E 3.00 65.08 1000.00 18.00 37.14 990.18 74.52 N 56.43 E 3.00 93.48 1100.00 21.00 37.14 1084.43 101.13 N 76.59 E 3.00 126.85 1200.00 24.00 37.14 1176.81 131.63 N 99.69 E 3.00 165.12 1300.00 27.00 37.14 1267.06 165.94 N 125.68 E 3.00 208.16 1400.00 30.00 37.14 1354.93 203.98 N 154.48 E 3.00 255.87 1500.00 33.00 37.14 1440.18 245.63 N 186.02 E 3.00 308.12 1600.00 36.00 37.14 1522.59 290.78 N 220.21 E 3.00 364.75 1700.00 39.00 37.14 1601.91 339.30 N 256.96 E 3.00 425.62 1800.00 42.00 37.14 1677.94 391.07 N 296.17 E 3.00 490.56 1900.00 45.00 37.14 1750.47 445.93 N 337.72 E 3.00 559.39 2000.00 48.00 37.14 1819.30 503.75 N 381.51 E 3.00 631.92 2048.05 49.44 37.14 1851.00 532.54 N 403.31 E 3.00 668.02 2100.00 51.00 37.14 1884.24 564.37 N 427.41 E 3.00 707.95 2200.00 54.00 37.14 1945.11 627.60 N 475.30 E 3.00 787.27 2300.00 57.00 37.14 2001.74 693.29 N 525.05 E 3.00 869.68 2336.22 58.09 37.14 2021.18 717.66 N 543.51 E 3.00 900.24 2500.00 58.09 37.14 2107.76 828.49 N 627.44 E 0.00 1039.26 3000.00 58.09 37.14 2372.08 1166.83 N 883.68 E 0.00 1463.69 3500.00 58.09 37.14 2636.39 1505.17 N 1139.92 E 0.00 1888.11 4000.00 58.09 37.14 2900.71 1843.52 N 1396.16 E 0.00 2312.54 4500.00 58.09 37.14 3165.03 2181.86 N 1652.40 E 0.00 2736.96 5000.00 58.09 37.14 3429.35 2520.21N 1908.64 E 0.00 3161.39 5500.00 58.09 37.14 3693.66 2858.55 N 2164.88 E 0.00 3585.81 5839.24 58.09 37.14 3873.00 3088.11N 2338.74 E 0.00 3873.78 6000.00 58.09 37.14 3957.98 3196.90 N 2421.12 E 0.00 4010.24 6500.00 58.09 37.14 4222.30 3535.24 N 2677.36 E 0.00 4434.66 6836.15 58.09 37.14 4400.00 3762.71 N 2849.63 E 0.00 4720.00 7000.00 58.09 37.14 4486.62 3873.59 N 2933.60 E 0.00 4859.08 KOP Base Permafrost EOC Top West Sak Base West Sak (WSIO) 7214.48 58.09 37.14 4600.00 4018.72 N 3043.52 E 0.00 5041.15 9 5/8" Csg Pt 7310.96 58.09 37.14 4651.00 4084.01 N 3092.96 E 0.00 5123.04 C80 (KiO) 7318.52 58.09 37.14 4655.00 4089.13 N 3096.84 E 0.00 5129.46 Camp SS 7500.00 58.09 37.14 4750.94 4211.93 N 3189.84 E 0.00 5283.51 8000.00 58.09 37.14 5015.25 4550.28 N 3446.08 E 0.00 5707.93 8500.00 58.09 37.14 5279.57 4888.62 N 3702.32 E 0.00 6132.36 8750.51 58.09 37.14 5412.00 5058.14 N 3830.71 E 0.00 6345.01 C50 9000.00 58.09 37.14 5543.89 5226.97 N 3958.56 E 0.00 6556.78 9369.09 58.09 37.14 5739.00 5476.72 N 4147.71E 0.00 6870.08 C40 (K5) 9500.00 58.09 37.14 5808.21 5565.31 N 4214.81E 0.00 6981.21 10000.00 58.09 37.14 6072.52 5903.65 N 4471.05 E 0.00 7405.63 10059.54 58.09 37.14 6104.00 5943.95 N 4501.56 E 0.00 7456.18 C30 (K2) 10294.11 58.09 37.14 6228.00 6102.68 N 4621.77 E 0.00 7655.29 C20 (HRZ Mid Point) 10500.00 58.09 37.14 6336.84 6242.00 N 4727.29 E 0.00 7830.06 10592.99 58.09 37.14 6386.00 6304.93 N 4774.94 E 0.00 7908.99 Base HRZ All data is in feet unless otherwise stated. Coordinates from slot#21 and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646.03 on azimuth 37.14 degrees from wellhead. Total Dogleg for wellpath is 58.09 degrees. Vertical section is from wellhead on azimuth 37.14 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ ARCO Alaska, Inc. Pad 1C,21 Kuparuk River Unit,North Slope, Alaska Measured Inclin. Azimuth True Vert Depth Degrees Degrees Depth RECTANGULAR COORDINATES PROPOSAL LISTING Page Your ref : 21 Version#5 Last revised : 4-Feb-99 Dogleg Vert Deg/lOOft Sect 10742.43 58.09 37.14 6465.00 6406.05 N 4851.53 E 0.00 8035.85 K-1 Marker 10944.84 58.09 37.14 6572.00 6543.02 N 4955.26 E 0.00 8207.66 Top D Shale 11000.00 58.09 37.14 6601.16 6580.34 N 4983.53 E 0.00 8254.48 11033.75 58.09 37.14 6619.00 6603.18 N 5000.82 E 0.00 8283.13 Target / Top C4 11099.96 58.09 37.14 6654.00 6647.99 N 5034.75 E 0.00 8339.33 Top C3 11151.03 58.09 37.14 6681.00 6682.55 N 5060.93 E 0.00 8382.69 Top C2 11239.94 58.09 37.14 6728.00 6742.71 N 5106.49 E 0.00 8458.16 Top C1 11309.93 58.09 37.14 6765.00 6790.07 N 5142.36 E 0.00 8517.57 Top B Shale 11461.27 58.09 37,14 6845.00 6892.48 N 5219.92 E 0.00 8646.03 TD / 7" Csg Pt All data is in feet unless otherwise stated. Coordinates from slot #21 and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646.03 on azimuth 37.14 degrees from wellhead. Total Dogleg for wellpath is 58.09 degrees. Vertical section is from wellhead on azimuth 37.14 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ ARCO Alaska, Inc. Pad 1C.21 Kuparuk River Unit. North Slope. Alaska PROPOSAL LISTING Page 3 Your ref : 21 Version#5 Last revised : 4-Feb-99 Comments in wellpath MD TVD Rectangul ar Coords. Comment 400 O0 2048 05 2336 22 5839 24 6836 15 7214 48 7310 96 7318 52 8750.51 9369.09 10059.54 10294.11 10592.99 10742.43 10944.84 11033.75 11099.96 11151.03 11239.94 11309.93 11461,27 400.00 0.00 N 0.00 E KOP 1851.00 532.54 N 403.31 E Base Permafrost 2021.18 717.66 N 543.51 E EOC 3873.00 3088.11 N 2338.74 E Top West Sak 4400.00 3762.71 N 2849.63 E Base West Sak (WSIO) 4600.00 4018.72 N 3043.52 E 9 5/8" Csg Pt 4651.00 4084.01 N 3092.96 E C80 (KiO) 4655.00 4089.13 N 3096.84 E Camp SS 5412.00 5058.14 N 3830.71 E C50 5739.00 5476.72 N 4147.71 E C40 (K5) 6104.00 5943.95 N 4501.56 E C30 (K2) 6228.00 6102.68 N 4621.77 E C20 (HRZ Mid Point) 6386.00 6304.93 N 4774.94 E Base HRZ 6465.00 6406.05 N 4851.53 E K-1 Marker 6572.00 6543.02 N 4955.26 E Top D Shale 6619.00 6603.18 N 5000.82 E Target / Top C4 6654.00 6647.99 N 5034.75 E Top C3 6681.00 6682.55 N 5060.93 E Top C2 6728.00 6742.71 N 5106.49 E Top C1 6765.00 6790.07 N 5142.36 E Top B Shale 6845.00 6892.48 N 5219.92 ETD / 7" Csg Pt Casing positions in string 'A' Top MD Top TVD Rectangular Coords. Bot MD Bot TVD Rectangular Coords. Casing .... ~i~ ..... ~i~ ........ ~]~ ........ ~i~"~Z~"~i~ ..... ~E~ .....~i~"~'~ ............ 0.00 0.00 O.OON O.OOE 11461,27 6845.00 6892.48N 5219.92E 7" Targets associated with this wel 1 path Target name Geographic Location T.V.D. Rectangular Coordinates Revised '~-;;.~;;:'}'~-,;~,'~,i ...... ~i.~.~;~,~i~}~,~;~i~;~"~i~;~,~ ...... ~,~;i~ ..... ~,~,~;~i~"~,~:~;,;,:~ ......... ARCO Alaska, Inc. Pad lC.21 Kuparuk River Unit,North Slope. Alaska Measured Inclin. Azimuth True Vert Depth Degrees Degrees Depth RECTANGULAR COORDINATES PROPOSAL LISTING Page 1 Your ref : 21 VersionS5 Last revised : 4-Feb-99 Dogleg Vert Deg/lOOft Sect 0.00 0.00 0.00 0.00 1601.00 S 1191.00 E 0.00 0.00 400.00 0.00 0.00 400.00 1601.00 S 1191.00 E 0.00 0.00 500.00 3.00 37.14 499.95 1598.91 S 1192.58 E 3.00 2.62 600.00 6.00 37.14 599.63 1592.66 S 1197.32 E 3.00 10.46 700.00 9.00 37.14 698.77 1582.25 S 1205.20 E 3.00 23.51 800.00 12.00 37.14 797.08 1567.73 S 1216.20 E 3.00 41.74 900.00 15.00 37.14 894.31 1549.12 S 1230.29 E 3.00 65.08 1000.00 18.00 37.14 990.18 1526.48 S 1247.43 E 3.00 93.48 1100.00 21.00 37.14 1084.43 1499.87 S 1267.59 E 3.00 126.85 1200.00 24.00 37.14 1176.81 1469.37 S 1290.69 E 3.00 165.12 1300.00 27.00 37.14 1267.06 1435.06 S 1316.68 E 3.00 208.16 1400,00 30.00 37.14 1354.93 1397.02 S 1345.48 E 3.00 255.87 1500.00 33.00 37.14 1440.18 1355.37 S 1377.02 E 3.00 308.12 1600.00 36.00 37.14 1522.59 1310.22 S 1411.21 E 3.00 364.75 1700.00 39.00 37.14 1601.91 1261.70 S 1447.96 E 3.00 425.62 1800.00 42.00 37.14 1677.94 1209.93 S 1487.17 E 3.00 490.56 1900.00 45.00 37.14 1750.47 1155.07 S 1528.72 E 3.00 559.39 2000.00 48.00 37.14 1819.30 1097.25 S 1572.51E 3.00 631.92 2048.05 49.44 37.14 1851.00 1068.46 S 1594.31 E 3.00 668.02 2100.00 51.00 37.14 1884.24 1036.63 S 1618.41 E 3.00 707.95 KOP Base Permafrost 2200.00 54.00 37.14 1945.11 973.40 S 1666.30 E 3.00 787.27 2300.00 57.00 37.14 2001.74 907.71 S 1716.05 E 3.00 869.68 2336.22 58.09 37.14 2021.18 883.34 S 1734.51 E 3.00 900.24 EOC 2500.00 58.09 37.14 2107.76 772.51 S 1818.44 E 0.00 1039.26 3000.00 58.09 37.14 2372.08 434.17 S 2074.68 E 0.00 1463.69 3500.00 58.09 37.14 2636.39 95.83 S 2330.92 E 0.00 1888.11 4000.00 58.09 37.14 2900.71 242.52 N 2587.16 E 0.00 2312.54 4500.00 58.09 37.14 3165.03 580.86 N 2843.40 E 0.00 2736.96 5000.00 58.09 37.14 3429.35 919.21 N 3099.64 E 0.00 3161.39 5500.00 58.09 37.14 3693.66 1257.55 N 3355.88 E 0.00 3585.81 5839.24 58.09 37.14 3873.00 1487.11N 3529.74 E 0.00 3873.78 Top West Sak 6000.00 58.09 37.14 3957.98 1595.90 N 3612.12 E 0.00 4010.24 6500.00 58.09 37.14 4222.30 1934.24 N 3868.36 E 0.00 4434.66 6836.15 58.09 37.14 4400.00 2161.71N 4040.63 E 0.00 4720.00 Base West Sak (WSIO) 7000.00 58.09 37.14 4486.62 2272.59 N 4124.60 E 0.00 4859.08 7214.48 58.09 37.14 4600.00 2417.72 N 4234.52 E 0.00 5041.15 9 5/8" Csg Pt 7310.96 58.09 37.14 4651.00 2483.01N 4283.96 E 0.00 5123.04 C80 (KIO) 7318.52 58.09 37.14 4655.00 2488.13 N 4287.84 E 0.00 5129.46 Camp SS 7500.00 58.09 37.14 4750.94 2610.93 N 4380.84 E 0.00 5283.51 8000.00 58.09 37.14 5015.25 2949.28 N 4637.08 E 0.00 5707.93 8500.00 58.09 37.14 5279.57 3287.62 N 4893.32 E 0.00 6132.36 8750.51 58.09 37.14 5412.00 3457.14 N 5021.71 E 0.00 6345.01 C50 9000.00 58.09 37.14 5543.89 3625.97 N 5149.56 E 0.00 6556.78 9369.09 58.09 37.14 5739.00 3875.72 N 5338.71 E 0.00 6870.08 C40 (K5) 9500.00 58.09 37.14 5808.21 3964.31N 5405.81E 0.00 6981.21 10000.00 58.09 37.14 6072.52 4302.65 N 5662.05 E 0.00 7405.63 10059.54 58.09 37.14 6104.00 4342.95 N 5692.56 E 0.00 7456.18 C30 (K2) 10294.11 58.09 37.14 6228.00 4501.68 N 5812.77 E 0.00 7655.29 C20 (HRZ Mid Point) 10500.00 58.09 37.14 6336.84 4641.00 N 5918.29 E 0.00 7830.06 10592.99 58.09 37.14 6386.00 4703.93 N 5965.94 E 0.00 7908.99 Base HRZ All data is in feet unless otherwise stated. Coordinates from NW Corner of Sec. 12, T11N. RiOE and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646.03 on azimuth 37.14 degrees from wellhead. Total Dogleg for wellpath is 58,09 degrees. Vertical section is from wellhead on azimuth 37.14 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ ARCO Alaska, Inc. Pad 1C, 21 Kuparuk River Unit,North Slope, Alaska Measured Inclin. Azimuth True Vert Depth Degrees Degrees Depth RECTANGULAR COORDINATES PROPOSAL LISTING Page 2 Your ref : 21 Version#5 Last revised : 4-Feb-99 Dogleg Vert Deg/lOOft Sect 10742.43 58.09 37.14 6465.00 4805.05 N 6042.53 E 0.00 8035.85 K-1 Marker 10944.84 58.09 37.14 6572.00 4942.02 N 6146.26 E 0.00 8207.66 Top D Shale 11000.00 58.09 37.14 6601.16 4979.34 N 6174.53 E 0.00 8254.48 11033.75 58.09 37.14 6619.00 5002.18 N 6191.82 E 0.00 8283.13 Target / Top C4 11099.96 58.09 37.14 6654.00 5046.99 N 6225.75 E 0.00 8339.33 Top C3 11151.03 58.09 37.14 6681.00 5081.55 N 6251.93 E 0.00 8382.69 Top C2 11239.94 58.09 37.14 6728.00 5141.71 N 6297.49 E 0.00 8458.16 Top C1 11309.93 58.09 37.14 6765.00 5189.07 N 6333.36 E 0.00 8517.57 Top B Shale 11461.27 58.09 37.14 6845.00 5291.48 N 6410.92 E 0.00 8646.03 TD / 7" Csg Pt All data is in feet unless otherwise stated. Coordinates from NW Corner of Sec. 12, T11N, RiOE and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646.03 on azimuth 37.14 degrees from wellhead. Total Dogleg for wellpath is 58.09 degrees. Vertical section is from wellhead on azimuth 37.14 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ ARCO Alaska, Inc. Pad 1C,21 Kuparuk River Unit,North Slope, Alaska PROPOSAL LISTING Page 3 Your ref : 21 Version#5 Last revised : 4-Feb-99 Comments in wel 1 path MD TVD Rectangular Coords. Comment 400.00 2048 05 2336 22 5839 24 6836 15 7214 48 7310 96 7318 52 8750.51 9369.09 10059.54 10294.11 10592.99 10742.43 10944.84 11033.75 11099.96 11151.03 11239.94 11309.93 11461.27 400.00 1601.00 S 1191.00 E KOP 1851.00 1068.46 S 1594.31 E Base Permafrost 2021.18 883.34 S 1734.51 EEOC 3873.00 1487.11 N 3529.74 E Top West Sak 4400.00 2161.71N 4040.63 E Base West Sak (WSIO) 4600.00 2417.72 N 4234.52 E 9 5/8" Csg Pt 4651.00 2483.01 N 4283.96 E C80 (KiO) 4655.00 2488.13 N 4287.84 E Camp SS 5412.00 3457.14 N 5021.71 E C50 5739.00 3875.72 N 5338.71 E C40 (K5) 6104.00 4342.95 N 5692.56 E C30 (K2) 6228.00 4501.68 N 5812.77 E C20 (HRZ Mid Point) 6386.00 4703.93 N 5965.94 E Base HRZ 6465.00 4805.05 N 6042.53 E K-1 Marker 6572.00 4942.02 N 6146.26 E Top D Shale 6619.00 5002.18 N 6191.82 E Target / Top C4 6654.00 5046.99 N 6225.75 E Top C3 6681.00 5081.55 N 6251.93 E Top C2 6728.00 5141.71N 6297.49 E Top Cl 6765.00 5189.07 N 6333.36 E Top B Shale 6845.00 5291.48 N 6410.92 ETD / 7" Csg Pt Casing positions in string 'A' Top MD Top TVD Rectangular Coords. Bot MD Bot TVD Rectangular Coords. Casing 0.00 0.00 1601.00S 1191.00E 11461.27 6845.00 5291.48N 6410.92E 7" Targets associated with this well path Target name Geographic Locati on T.V.D. Rectangul ar Coordi nates Revised ARCO Alaska. Inc. Pad lC.21 Kuparuk River Unit, North S1 ope, A1 aska Measured Inclin. Azimuth True Vert R E C T Depth Degrees Degrees Depth C 0 0 R 0.00 0.00 0.00 0.00 0.00 400.00 0.00 0.00 400.00 0.00 500.00 3.00 37.14 499.95 2.09 600.00 6.00 37.14 599.63 8.34 700.00 9.00 37.14 698.77 18.75 800.00 12.00 37.14 797.08 33.27 900.00 15.00 37.14 894.31 51.88 1000.00 18.00 37.14 990.18 74.52 1100.00 21.00 37.14 1084.43 101.13 1200.00 24.00 37.14 1176.81 131.63 1300.00 27.00 37.14 1267.06 165.94 1400.00 30.00 37.14 1354.93 203.98 1500.00 33.00 37.14 1440.18 245.63 1600,00 36.00 37,14 1522.59 290.78 1700.00 39.00 37.14 1601.91 339.30 1800.00 42.00 37.14 1677.94 391.07 1900.00 45.00 37.14 1750.47 445.93 2000.00 48.00 37.14 1819.30 503.75 2048.05 49.44 37.14 1851.00 532.54 2100.00 51.00 37.14 1884.24 564.37 2200.00 54.00 37.14 1945.11 627.60 2300.00 57.00 37.14 2001.74 693.29 2336.22 58.09 37.14 2021.18 717.66 2500.00 58.09 37.14 2107.76 828.49 3000.00 58.09 37.14 2372.08 1166.83 3500.00 58.09 37.14 2636.39 1505.17 4000.00 58.09 37.14 2900.71 1843.52 4500.00 58.09 37.14 3165.03 2181.86 5000.00 58.09 37.14 3429.35 2520.21 5500.00 58.09 37.14 3693.66 2858.55 5839.24 58.09 37.14 3873.00 3088.11 6000.00 58.09 37.14 3957.98 3196.90 6500.00 58.09 37.14 4222.30 3535.24 6836.15 58.09 37.14 4400.00 3762.71 7000.00 58.09 37.14 4486.62 3873.59 7214.48 58.09 37.14 4600.00 4018.72 7310.96 58.09 37.14 4651.00 4084.01 7318.52 58.09 37.14 4655.00 4089.13 7500.00 58.09 37.14 4750.94 4211.93 8000.00 58.09 37.14 5015.25 4550.28 8500.00 58.09 37.14 5279.57 4888.62 8750.51 58.09 37.14 5412.00 5058.14 9000.00 58.09 37.14 5543.89 5226.97 9369.09 58.09 37.14 5739.00 5476.72 9500.00 58.09 37.14 5808.21 5565.31 10000.00 58.09 37.14 6072.52 5903.65 10059.54 58.09 37.14 6104.00 5943.95 10294.11 58.09 37.14 6228.00 6102.68 10500.00 58.09 37.14 6336.84 6242.00 10592.99 58.09 37.14 6386.00 6304.93 A N G U L A R Vert D I N A T E S Sect PROPOSAL LISTING Page 1 Your ref : 21 Version#5 Last revised : 4-Feb-99 Ellipse Semi Axes Minor Major Minor Vert. Azi. N 0.00 E 0.00 0.00 0.00 0.00 N/A N 0.00 E 0.00 1.04 1.04 0.60 N/A N 1.58 E 2.62 1.32 1.31 0.75 37.14 N 6.32 E 10.46 1.66 1.58 0.90 37.14 N 14.20 E 23.51 2.14 1.86 1.05 37.14 N 25.20 E 41.74 2.80 2.16 1.21 37.14 N 39.29 E 65.08 3.68 2.48 1.37 37.14 N 56.43 E 93.48 4.79 2.83 1.55 37.14 N 76.59 E 126.85 6.13 3.21 1.74 37.14 N 99.69 E 165.12 7.73 3.62 1.95 37.14 N 125.68 E 208.16 9.58 4.06 2.18 37.14 N 154.48 E 255.87 11.70 4.53 2.45 37.14 N 186.02 E 308.12 14.09 5.02 2.76 37.14 N 220.21E 364.75 16.76 5.53 3.12 37.14 N 256.96 E 425.62 19.71 6.06 3.53 37.14 N 296.17 E 490.56 22.96 6.59 3.98 37.14 N 337.72 E 559.39 26.49 7.13 4.50 37.14 N 381.51E 631.92 30.31 7.68 5.07 37.14 N 403.31E 668.02 32,28 7.93 5.37 37.14 N 427.41 E 707.95 34,41 8.21 5.70 37.14 N 475.30 E 787.27 38.78 8.74 6.38 37.14 N 525.05 E 869.68 43.42 9.25 7.12 37.14 N 543,51 E 900.24 45.14 9.43 7.39 37.14 N 627.44 E 1039.26 52,93 10.26 8.65 37.14 N 883.68 E 1463.69 76.84 12.78 12.53 37.14 N 1139.92 E 1888.11 100.85 15.30 16.45 37.14 N 1396.16 E 2312.54 124.90 17.82 20.38 37.14 N 1652.40 E 2736.96 148.96 20.35 24.32 37.14 N 1908.64 E 3161.39 173.05 22.88 28.26 37.14 N 2164.88 E 3585.81 197.13 25.40 32.20 37.14 N 2338,74 E 3873.78 213.48 27.12 34.88 37.14 N 2421,12 E 4010.24 221.23 27.93 36.15 37.14 N 2677.36 E 4434.66 245.32 30.46 40.09 37.14 N 2849.63 E 4720.00 261.53 32.16 42.75 37.14 N 2933.60 E 4859,08 269.42 32.99 44.04 37.14 N 3043.52 E 5041.15 279.76 34.07 45.73 37.14 N 3092.96 E 5123.04 284.41 34.56 46.50 37.14 N 3096,84 E 5129.46 284.78 34.60 46.56 37.14 N 3189.84 E 5283.51 293.53 35.52 47.99 37.14 N 3446.08 E 5707.93 317.63 38.05 51.94 37.14 N 3702.32 E 6132.36 341.73 40.58 55.89 37.14 N 3830.71 E 6345.01 353.81 41.84 57.86 37.14 N 3958.56 E 6556.78 365.84 43.10 59.84 37.14 N 4147.71 E 6870.08 383.63 44.97 62.75 37.14 N 4214.81E 6981.21 389.94 45.63 63.78 37.14 N 4471.05 E 7405.63 414.05 48.16 67.73 37.14 N 4501.56 E 7456.18 416.92 48.46 68.20 37.14 N 4621,77 E 7655.29 428.23 49.65 70.06 37.14 N 4727.29 E 7830.06 438.16 50.69 71.68 37.14 N 4774.94 E 7908.99 442.64 51.16 72.42 37.14 All data is in feet unless otherwise stated. Coordinates from slot#21 and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646.03 on azimuth 37.14 degrees from wellhead. Vertical section is from wellhead on azimuth 37.14 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ ARCO Alaska, Inc. Pad 1C, 21 Kuparuk River Unit,North Slope, Alaska Measured Inclin. Azimuth True Vert Depth Degrees Degrees Depth PROPOSAL LISTING Page 2 Your ref : 21 VersionS5 RECTANGULAR COORDINATES Vert Sect Last revised : 4-Feb-99 Ellipse Semi Axes Minor Major Minor Vert. Azi. 10742.43 58.09 37.14 6465.00 6406.05 N 4851.53 E 8035.85 449.85 51.92 73.60 37.14 10944.84 58.09 37.14 6572.00 6543.02 N 4955.26 E 8207.66 459.61 52.94 75.20 37.14 11000.00 58.09 37.14 6601.16 6580.34 N 4983.53 E 8254.48 462.27 53.22 75.63 37.14 11033.75 58.09 37.14 6619.00 6603.18 N 5000.82 E 8283.13 463.89 53.39 75.90 37.14 11099.96 58.09 37.14 6654.00 6647.99 N 5034.75 E 8339.33 467.09 53.73 76.42 37.14 11151.03 58.09 37.14 6681.00 6682.55 N 5060.93 E 8382.69 469.55 53.98 76.83 37.14 11239.94 58.09 37.14 6728.00 6742.71 N 5106.49 E 8458.16 473.84 54.43 77.53 37.14 11309.93 58.09 37.14 6765.00 6790.07 N 5142.36 E 8517.57 477.21 54.79 78.08 37.14 11461.27 58.09 37.14 6845.00 6892.48 N 5219.92 E 8646.03 484.51 55.55 79.28 37.14 POSITION UNCERTAINTY SUMMARY Depth Position Uncertainty From To Survey Tool Error Model Major Minor Vert. 0 11461 ARCO (H.A. Mag) ....... User specified 484.51 55,55 79.28 1. Ellipse dimensions are half axis. 2. Casing dimensions are not included. 3. Ellipses are calculated on 2.58 standard deviations. 4. Uncertainty calculations start at drill depth zero. 5. Surface position uncertainty is not included. 6. Where two surveys are tied together the errors of one are considered to have a systematic relationship to the corresponding errors of the other. 7, Detailed description of the INTEQ error models can be found in the Ec*Trak manual. All data is in feet unless otherwise stated. Coordinates from slot #21 and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646,03 on azimuth 37.14 degrees from wellhead. Vertical section is from wellhead on azimuth 37.14 degrees. Calculation uses the minimum curvature method. Presented by Baker Hughes INTEQ ~ ARCO Alaska, Inc. Pad 1C.21 Kuparuk River Unit,North Slope, Alaska PROPOSAL LISTING Page 3 Your ref : 21 Version#5 Last revised : 4-Feb-99 Comments in wellpath MD TVD Rectangular Coords. Comment 400.00 400.00 0.00 N 0.00 E KOP 2048.05 1851.00 532.54 N 403.31E Base Permafrost 2336.22 2021.18 717.66 N 543.51E EOC 5839.24 3873.00 3088.11 N 2338.74 E Top West Sak 6836.15 4400.00 3762.71N 2849.63 E Base West Sak (WSiO) 7214.48 4600.00 4018.72 N 3043.52 E 9 5/8" Csg Pt 7310.96 4651.00 4084.01 N 3092.96 E C80 (KIO) 7318.52 4655.00 4089.13 N 3096.84 E Camp SS 8750.51 5412.00 5058.14 N 3830.71E C50 9369.09 5739.00 5476.72 N 4147.71 E C40 (K5) 10059.54 6104.00 5943.95 N 4501.56 E C30 (K2) 10294.11 6228.00 6102.68 N 4621.77 E C20 (HRZ Mid Point) 10592.99 6386.00 6304.93 N 4774.94 E Base HRZ 10742.43 6465.00 6406.05 N 4851.53 E K-1 Marker 10944.84 6572.00 6543.02 N 4955.26 E Top D Shale 11033.75 6619.00 6603.18 N 5000.82 E Target / Top C4 11099.96 6654.00 6647.99 N 5034.75 E Top C3 11151.03 6681.00 6682.55 N 5060.93 E Top C2 11239.94 6728.00 6742.71N 5106.49 E Top C1 11309.93 6765.00 6790.07 N 5142.36 E Top B Shale 11461.27 6845.00 6892.48 N 5219.92 ETD / 7" Csg Pt Casing positions in string 'A' Top MD Top TVD Rectangular Coords. Bot MD Bot TVD Rectangular Coords. Casing 0.00 0.00 O.OON O.OOE 7214.48 4600.00 4018.72N 3043.52E 9 5/8" 0.00 0.00 O.OON O.OOE 11461.27 6845.00 6892.48N 5219.92E 7" Targets associated with this wel 1 path Target name Geographic Locati on T.V.D. Rectangul ar Coordi nates Revised ARCO Alaska, Inc. Pad lC.21 Kuparuk River Unit,North Slope, Alaska Measured Inclin Azimuth True Vert Depth Degrees Degrees Depth RECTANGULAR COORDINATES 0.00 0.00 0.00 0.00 O,OON O.OOE 400.00 0.00 0.00 400.00 O.OON O.OOE 500.00 3.00 37.14 499.95 2.09N 1.58E 600.00 6.00 37.14 599.63 8.34N 6.32E 700.00 9.00 37.14 698.77 18.75N 14.20E PROPOSAL LISTING Page 1 Your ref : 21 Version#5 Last revised : 4-Feb-99 Dogleg Vert G R I D C 0 0 R D S Deg/lOOft Sect Easting Northing 0.00 0.00 562197.50 5968637.02 0.00 0.00 562197.50 5968637.02 3.00 2.62 562199.06 5968639.11 3.00 10.46 562203.75 5968645.41 3.00 23.51 562211.54 5968655.87 800.00 12.00 37.14 797.08 33.27N 25.20E 3.00 41.74 900.00 15,00 37.14 894.31 51,88N 39.29E 3.00 65.08 1000.00 18.00 37.14 990.18 74.52N 56.43E 3.00 93.48 1100.00 21.00 37.14 1084.43 101.13N 76.59E 3.00 126.85 1200.00 24.00 37.14 1176.81 131.63N 99.69E 3.00 165.12 1300.00 27.00 37.14 1267.06 165.94N 125.68E 3.00 208.16 1400.00 30.00 37.14 1354.93 203.98N 154.48E 3.00 255.87 1500.00 33.00 37.14 1440.18 245.63N 186.02E 3.00 308.12 1600.00 36.00 37.14 1522.59 290.78N 220.21E 3.00 364.75 1700.00 39.00 37.14 1601.91 339.30N 256.96E 3.00 425.62 1800.00 42.00 37.14 1677.94 391.07N 296.17E 3.00 490.56 1900.00 45.00 37.14 1750.47 445.93N 337.72E 3.00 559.39 2000.00 48.00 37.14 1819.30 503.75N 381.51E 3.00 631.92 2048.05 49.44 37.14 1851.00 532.54N 403.31E 3.00 668.02 2100.00 51.00 37.14 1884.24 564.37N 427.41E 3.00 707.95 2200.00 54.00 37.14 1945.11 627.60N 475.30E 3.00 787.27 2300.00 57.00 37.14 2001.74 693.29N 525.05E 3.00 869.68 2336.22 58.09 37.14 2021.18 717.66N 543.51E 3.00 900.24 2500.00 58.09 37.14 2107.76 828.49N 627.44E 0.00 1039.26 3000.00 58,09 37.14 2372.08 1166.83N 883.68E 0.00 1463.69 3500.00 58.09 37.14 2636.39 1505.17N 1139.92E 0.00 1888.11 4000.00 58.09 37.14 2900.71 1843,52N 1396.16E 0.00 2312.54 4500.00 58.09 37.14 3165.03 2181.86N 1652.40E 0.00 2736.96 5000.00 58.09 37.14 3429.35 2520.21N 1908.64E 0.00 3161.39 5500.00 58.09 37.14 3693.66 2858.55N 2164.88E 0.00 3585.81 5839.24 58.09 37.14 3873.00 3088.11N 2338.74E 0.00 3873.78 6000.00 58.09 37.14 3957.98 3196.90N 2421.12E 0.00 4010.24 6500.00 58.09 37,14 4222.30 3535.24N 2677,36E 0.00 4434.66 6836.15 58.09 37.14 4400.00 3762.71N 2849.63E 0.00 4720.00 7000.00 58.09 37.14 4486.62 3873.59N 2933.60E 0.00 4859.08 562222.42 5968670.49 562236.36 5968689.21 562253.32 5968711.98 562273.25 5968738.75 562296.10 5968769.44 562321.81 5968803.96 562350.30 5968842.22 562381.50 5968884.12 562415.32 5968929.54 562451.67 5968978.36 562490.45 5969030.44 562531.55 5969085.64 562574.86 5969143.81 562596.43 5969172.76 562620.27 5969204,78 562667.64 5969268.40 562716.85 5969334.49 562735.10 5969359.00 562818.12 5969470.49 563071.58 5969810.88 563325.04 5970151.26 563578.49 5970491.65 563831.95 5970832.03 564085.41 5971172.41 564338,87 5971512.80 564510.83 5971743.74 564592.32 5971853.18 564845.78 5972193.57 565016.18 5972422.41 565099.24 5972533.95 7214.48 58.09 37.14 4600.00 4018.72N 3043.52E 0.00 5041.15 565207.96 5972679.96 7310.96 58.09 37.14 4651.00 4084.01N 3092.96E 0.00 5123.04 565256.86 5972745.64 7318.52 58.09 37.14 4655.00 4089.13N 3096.84E 0.00 5129.46 565260.70 5972750.79 7500.00 58.09 37.14 4750.94 4211.93N 3189.84E 0.00 5283.51 565352.69 5972874.33 8000.00 58.09 37.14 5015.25 4550.28N 3446.08E 0.00 5707.93 565606.15 5973214.72 8500.00 58.09 37.14 5279.57 4888.62N 3702.32E 0.00 6132.36 565859.61 5973555.10 8750.51 58.09 37.14 5412.00 5058.14N 3830.71E 0.00 6345.01 565986.59 5973725.64 9000.00 58.09 37.14 5543.89 5226.97N 3958.56E 0.00 6556.78 566113.06 5973895.49 9369.09 58.09 37.14 5739.00 5476.72N 4147.71E 0.00 6870.08 566300.16 5974146.75 9500.00 58.09 37.14 5808.21 5565.31N 4214.81E 0.00 6981.21 566366.52 5974235.87 10000.00 58.09 37.14 6072.52 5903.65N 4471.05E 0.00 7405.63 566619.98 5974576.26 10059.54 58.09 37.14 6104.00 5943.95N 4501,56E 0.00 7456.18 566650.16 5974616.79 10294.11 58.09 37.14 6228.00 6102.68N 4621.77E 0.00 7655.29 566769.07 5974776.48 10500.00 58.09 37.14 6336.84 6242.00N 4727.29E 0.00 7830.06 566873.43 5974916.64 10592.99 58.09 37.14 6386.00 6304.93N 4774.94E 0.00 7908.99 566920.57 5974979.95 All data in feet unless otherwise stated. Calculation uses minimum curvature method. Coordinates from slot #21 and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646.03 on azimuth 37.14 degrees from wellhead. Total Dogleg for wellpath is 58.09 degrees. Vertical section is from wellhead on azimuth 37.14 degrees. Grid is alaska - Zone 4. Grid coordinates in FEET and computed using the Clarke - 1866 spheroid Presented by Baker Hughes INTEQ ~ ARCO Alaska, Inc. Pad 1C,21 Kuparuk River Unit,North Slope, Alaska PROPOSAL LISTING Page 2 Your ref : 21Version~f3 Last revised : 4-Feb-99 Measured Inclin Azimuth True Vert R E C TAN G U LA R Dogleg Vert G R I D C 0 0 R D S Depth Degrees Degrees Depth C 0 0 R D I N A T E S Deg/lOOft Sect Easting Northing 10742.43 58.09 37.14 6465.00 6406.05N 4851.53E 0.00 8035.85 566996.33 5975081.68 10944.84 58.09 37.14 6572.00 6543.02N 4955.26E 0.00 8207.66 567098.93 5975219.47 11000.00 58.09 37.14 6601.16 6580.34N 4983.53E '0.00 8254.48 567126.89 5975257.02 11033.75 58.09 37.14 6619.00 6603.18N 5000.82E 0.00 8283.13 567144.00 5975280.00 11099.96 58.09 37.14 6654.00 6647.99N 5034.75E 0.00 8339.33 567177.56 5975325.07 11151.03 58.09 37.14 6681.00 6682.55N 5060.93E 0.00 8382.69 567203.45 5975359.84 11239.94 58.09 37.14 6728.00 6742.71N 5106.49E 0.00 8458.16 567248.52 5975420.37 11309.93 58.09 37.14 6765.00 6790.07N 5142.36E 0.00 8517.57 567284.00 5975468.02 11461.27 58.09 37.14 6845.00 6892.48N 5219.92E 0.00 8646.03 567360.71 5975571.04 All data in feet unless otherwise stated. Calculation uses minimum curvature method. Coordinates from slot #21 and TVD from RKB (Parker 245) (101.00 Ft above mean sea level). Bottom hole distance is 8646.03 on azimuth 37.14 degrees from wellhead. Total Dogleg for wellpath is 58.09 degrees. Vertical section is from wellhead on azimuth 37.14 degrees. Grid is alaska - Zone 4. Grid coordinates in FEET and computed using the Clarke - 1866 spheroid Presented by Baker Hughes INTEQ ARCO Alaska, Inc. Pad 1C,21 Kuparuk River Unit,North Slope, Alaska PROPOSAL LISTING Page 3 Your ref : 21 Version#5 Last revised : 4-Feb-99 Comments i n wel 1 path MD TVD Rectangular Coords. Comment 400.00 2048.05 2336.22 5839.24 6836.15 7214.48 7310.96 7318.52 8750.51 9369.09 10059.54 10294 11 10592 99 10742 43 10944 84 11033 75 11099 96 11151.03 11239.94 11309.93 11461.27 400.00 O.OON O.OOE KOP 1851.00 532.54N 403.31E Base Permafrost 2021.18 717.66N 543.51E EOC 3873.00 3088.11N 2338.74E Top West Sak 4400.00 3762.71N 2849.63E Base West Sak (WSiO) 4600.00 4018.72N 3043.52E 9 5/8" Csg Pt 4651.00 4084.01N 3092.96E C80 (KiO) 4655.00 4089.13N 3096.84E Camp SS 5412.00 5058.14N 3830.71E C50 5739.00 5476.72N 4147.71E C40 (K5) 6104.00 5943.95N 4501.56E C30 (K2) 6228.00 6102.68N 4621.77E C20 (HRZ Mid Point) 6386.00 6304.93N 4774.94E Base HRZ 6465.00 6406.05N 4851.53E K-1 Marker 6572.00 6543.02N 4955.26E Top D Shale 6619.00 6603.18N 5000.82E Target / Top C4 6654.00 6647.99N 5034.75E Top C3 6681.00 6682.55N 5060.93E Top C2 6728.00 6742.71N 5106.49E Top C1 6765.00 6790.07N 5142.36E Top B Shale 6845.00 6892.48N 5219.92E TD / 7" Csg Pt Casing positions in string 'A' Top MD Top TVD Rectangular Coords. Bot MD Bot TVD Rectangular Coords. Casing 0.00 0.00 O.OON O.OOE 7214.48 4600.00 4018.72N 3043.52E 9 5/8" 0.00 0.00 O.OON O.OOE 11461.27 6845.00 6892.48N 5219.92E 7" Targets associated with this wellpath Target name Geographic Location T.V.D. Rectangular Coordinates Revised Target / Top C4 567144.000,5975280.000,0.0000 6619.00 6603.18N 5000.82E 24-Nov-98 ARCO Alaska, Inc. Pad 1C 21 slot #21 Kuparuk River Unit North Slope, Alaska SUMMARY CLEARANCE REPORT by Baker Hughes INTEQ Your ref : 21 Version#5 Our ref : prop3242 License : Date printed : 3-Feb-99 Date created : 17-Dec-98 Last revised : 3-Feb-99 Field is centred on n70 16 18.576,w150 5 56.536 Structure is centred on n70 19 45.173,w149 30 19.124 Slot location is n70 19 29.426,w149 29 44.361 Slot Grid coordinates are N 5968637.015, E 562197.500 Slot local coordinates are 1601.00 S 1191.00 E Projection type: alaska - Zone 4, Spheroid: Clarke - 1866 Reference North is True North Object wel 1 path MMS <6948-7570'>,,WS#24,Pad 1C PMSS <0-11300'>,,11,Pad 1C Unknown Data,,WS1,Pad 1C PMSS <0-8677'>,,13,Pad lC GMS <0-7780'>,,1,Pad 1C GMS <O-7615'>,,2,Pad 1C GMS <O-9700'>,,3,Pad lC GMS <O-7753'>,,5,Pad 1C GMS <O-10243'>,,6,Pad 1C GMS <O-9784'>,,7,Pad 1C GMS <O-9600'>,,8.Pad 1C PGMS <0-9002'>,,lOGI,Pad 1C MSS <0-7000'>,,9GI,Pad 1C PMSS <0 - 10969'),,17,Pad 1C PMSS <0-9390'>,,15,Pad 1C PMSS <0-17089'>,,12,Pad 1C GMS <0-7575'>,,4,Pad 1C PMSS <0 - 11918'>,,16,Pad 1C PMSS <0-10980'>,,14,Pad 1C Closest approach with 3-D Minimum Distance Last revised Distance M.D. 17-Dec-97 4775.6 11461.3 19-Mar-97 668.3 320.0 2- Nov- 98 7462.0 2860.0 1- Dec- 98 367.0 360.0 18- Dec- 98 208.6 611.1 18- Dec- 98 87.8 533.3 18-Dec-98 31.6 400.0 18- Dec- 98 270.3 433.3 18-Dec-98 391.6 400.0 18-Dec-98 511.2 400.0 18- Dec- 98 632.1 20.0 18- Dec- 98 533.1 20.0 2- Jan- 98 685.3 400.0 2- Dec- 98 660.9 100.0 17-Dec-98 58.2 0.0 7-Jan-98 395.8 1922.2 18-Dec-98 151.1 433.3 8-Jan-99 127.4 2760.0 18- Mar- 98 49.2 577.8 method Diverging from M.D. 11461.3 320.0 2860.0 360.0 611.1 533.3 400.0 433.3 9369.1 400.0 44~, .4 411.1 400.0 100.0 0.0 1922.2 433.3 2760.0 577.8 ARCO Alaska, Inc. Kuparuk Drillsite Development Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 265-6206 Michael Zanghi Supervisor Feb 4, 1999 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 (907) 279-1433 Re: Application for Permit to Drill 1C-21 Kuparuk Development Production Well, Kuparuk River Unit Dear Sirs: ARCO Alaska, Inc. hereby applies for a Permit to Drill an onshore development well to the Kuparuk interval from 1C pad in the Kuparuk River Unit ("KRU"). The well is designed to penetrate and further develop the production potential of the Kuparuk sands in the vicinity of 1C pad. The well is designated as a conventional production well using a 9 5/8" surface casing string, a 7" Iongstring design production casing string and 3-1/2" tubing. 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 10-401 Application for Permit to Drill per 20 AAC 25.005 (a). 2) Fee of $100 payable to the State of Alaska per 20 AAC 25.005 (c) (1). 3) A directional plat showing the surface and bottomhole locations proposed for the well per 20 AAC 25.005 (c) (2). 4) Directional plots and proximity calculations in accordance with the requirements of 20 AAC 25.050. 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) A complete proposed casing and cementing program is attached as per 20 AAC 25.030. A wellbore schematic is also attached visually depicting the proposed well and completion design. 7) The drilling fluid program, in addition to the requirements set forth in 20 AAC 25.033 are attached in this APD package. 8) A copy of the proposed drilling program, including a request for approval of annular pumping operations is attached. 9) Aisc note that ARCO does not anticipate the presence of H2S in the formations to be encountered in this well. However, there will be H2S monitoring equipment functioning on the rigs as is the standard operating procedure in the Kuparuk River Unit drilling operation. ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany 10) Please note that because of the large volume of regional information available in this area, ARCO considers this well to be a development well, and as such, no mudlogging operations such as type log generation and sample catching are planned. Please note that the anticipated spud date for this well is Febuary 17, 1999. If you have any questions or require further information, please contact Scott Goldberg at (907) 263-4622 or Chip Alvord at (907) 265-6120. Sincerely., Scott Goldberg d'-. Operations Drilling Engineer cc: Kuparuk 1C-21 Well File Chip Alvord ATO-1200 MJ Loveland NSK6 205087844 AAI PAYABLES P.O. Box 102776 Anchorage, AK 99510-2776 PAY TO THE ORDER OF: JANUARY 19, 1999 099?5?9 The First Nati°naJ.~!ai!ki:of' Chicago-0710 ChicagO;i il I Hnois Payable ThrSUgi~i:Republic Bank Shelbyvi lie, Kentucky ALASKA DEPT OF REVENUE ALASKA OIL & ~GA~S:'CONSERVATION COMMI 3001 PORCUPINE DRIVE :. · : ::.'V:OID:~FTER 90 DAYS *** ::-. ':. :: :::: : : ,, ~,., :::. :: .:. :: .. .:: .: :EXACTLY *******?~,1:00 DOLLARs AND O0 bENTS ¢:*********** 100.00 " i :':::::::: '":" ':' ' ':' : '':: TRACE NUMBER: 205087844 OCiCt ? 5 WELL PERMIT CHECKLIST FIELD & POOL COMPANY VVELL NAME,,~_~/~- .~L// PROGRAM: exp ADMINISTRATION INIT CLASS ENGINEERING APPI~ DATE 1. Permit fee attached ....................... 2. Lease number appropriate ................... 3. Unique well name and number .................. 4. Well located in a defined pool .................. 5. Well located proper distance from drilling unit boundary .... 6. Well located proper distance from other wells .......... 7. Sufficient acreage available in ddlling unit ............ 8. If deviated, is wellbore plat included ............... 9. Operator only affected party ................... 10. Operator has appropriate bond in force ............. 11. Permit can be issued without conservation order ........ 12. Permit can be issued without administrative approval ...... 13. Can permit be approved before 15-day wait ........... GEOL AREA 14. Conductor stdng provided ................... 15. Surface casing protects all known USDWs ........... 16. CMT vol adequate to circulate on conductor & surf csg ..... 17. CMT vol adequate to tie-in long string to surf csg ........ 18. CMT will cover all known productive horizons .......... 19. Casing designs adequate for C, T, B & permafrost ....... 20. Adequate tankage or reserve pit ................. 21. If a re-drill, has a 10-403 for abandonment been approved... 22. Adequate wellbore separation proposed ............. 23. If d/verier required, does it meet regulations .......... 24. Drilling fluid program schematic & equip list adequate ..... 25. BOPEs, do they meet regulation ................ 26. BOPE press rating appropriate; test to ~'CT(s~ psig. 27. Choke manifold complies w/APl RP-53 (May 84) ........ 28. Work will occur without operation shutdown ........... 29. Is presence of H2S gas probable ................. GEOLOGY 30. 31. 32. , · 34. ANNULAR DISPOSAL 35. dev ~' redrll ~ sew ~ wellbore seg ~ N (~)N (~)N ~)N APPR DATE ann. disposal para req /~ ~-?'~---~ UNIT# /',~/~-_~ ON/OFF SHORE Permit can be issued w/o hydrogen sulfide measures ..... Data presented on potential overpressure zones ....... Seismic analysis of shallow gas zones ............. Seabed condition survey (if off-shore) ............. Contact name/phone for weekly progress reports [exploratory proper cementing records, this plan With (A) will contain waste in a suitable receiving zone; ....... (B) will not contaminate freshwater; or cause drilling waste... to su~ace; the well used for disposal; (c) wiJJ not impair mechani~l integrity of (D) will not damage producing formation or impair recove~ from a pool; and (E) will not circumvent 20 ~C 25.252 or 20 ~C 25.412. GEOL~O~Y.: ENGINEERING: UIC/Annular COMMISSION: JDH ~ RNC co Co c:\msoffice\wordian\diana\checklist Comments/Instructions: ©
