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Home My WebLink About1998 Kuparuk River PoolARCO Alaska, Inc. Post Office Box 100360 Anchorage, Alaska 9951 0-0360 Telephone 907 276 121 5 Janet Weiss Supervisor Greater Kuparuk Area Reservoir Planning AT0 1228 Phone 263-4914 Fax 265-6133 April 1, 1999 @ Mr. Robert Christenson, Commissioner a=' Alaska Oil and Gas conservation Commission 3001 Porcupine Drive In compliance with Rule 3, Conservation Order No. l98B, ARCO Alaska, Inc., operator of the Kuparuk River Unit, is hereby submitting the annual report on the Kuparuk River Oil Pool. This report documents the required information pertinent to the field development and enhanced recovery operations from January through December 1998. The following is an outline of the information provided: a. A summary of the enhanced recovery project (Attachment 1). b. Voidage balance, by month, of produced and injected fluids, including low molecular weight hydrocarbons (Attachment 2, Attachment 3). c. Analysis of reservoir pressure surveys taken in 1998 (Attachment 4). d. A tabulation of both production (Attachment 5) and injection (Attachment 6) logs and surveys analyzed during 1 998 from wells in the Kuparuk permit area. Blue line and sepia copies have been previously sent to your office, following the completion of the surveys. e. Composition of enriched gas injected during 1998 as required by Administrative Approval No. 198.3, and estimate of MMP, Conservation Order 198B (Attachment 7). f. Kuparuk LSEOR development plan (Attachment 8). If you have any questions concerning this data, please contact Mike Beck at (907) 276-1 2 1 5 ~7285. 932- Janet Weiss GKA Reservoir Planning Supervisor ARCO Alaska, Inc. IS a Subsldlary of Atlant~cR~chfleldCompany Attachment 1 Kuparuk River Oil Pool 1998 Annual Surveillance Report Summary of the Enhanced Recovery Project ENHANCED RECOVERY Miscible water-alternating-with-gas (MWAG) is the predominant EOR process at Kuparuk. Immiscible WAG (IWAG) still has a role in Kuparuk reservoir management. In 1998, Kuparuk injected an average of 246 MMSCFD of MI. Kuparuk used an average of 14 MBPD indigenous NGLs and imported 28 MBPD of NGLs from Prudhoe Bay to blend the MI. The incremental oil obtained from the EOR process at Kuparuk averaged 26.6 MBPD in 1998. MWAG Small Scale EOR (SSEOR and SSEORX) Drill Sites 1Y and 22 continue to be on MWAG as well as Drill Sites 1A and 2X (SSEORX drill sites). To date, approximately half of the ultimate tertiary reserves from these drill sites have been recovered. Pattern performance still substantiates the high value of MWAG at the Kuparuk field. Large Scale EOR (LSEOR) LSEOR has expanded the miscible gas injection process utilizing offsite enriching fluid (PBU NGL) blended with Kuparuk lean gas. The LSEOR project installation and start up was completed in 1996. Kuparuk's average MI (miscible injectant) injection rate increased from 65 MMSCFD to approximately 246 MMSCFD. The following drill sites at CPF-1 and CPF-2 are currently on MWAG: 2A, 2B, 2H, 2M, 2T, 2U, 2V, 2W, 2X, 22, 1A, 1Y, 1G, and 1R. MWAG injection commenced at drill site 1 R in July 1998. CPF-3 EOR Expansion of the MWAG process to a CPF-3 drill site became operational in December 1996. In 1998, an average of 12 MMSCFD of MI was injected into Drill Site 3F. EOR Expansions A high pressure lean gas tie line installation between CPF-1 and CPF-2 was installed in the summer of 1998 to supply additional gas to CPF-2. This installation increased MI supply and added flexibility for lean gas chase logistics. CPF-2 NGL pump capacity is planned to be increased by 12000 bpd in March of 1999 to enable the blending of an additional 40 MMSCFD of MI. The additional MI will allow the MWAG process to be expanded to six eastern CPF-1 drill sites in the 2000+ timeframe: Drill Sites 1 B, 1 E, 1 C, 1 D, 1 H, and 1 L. Another expansion being evaluated is fuel gas stripping for CPF-3 to augment the MI supply using NGLs that would otherwise be burned. During 1998 an average of 39MMSCFD of IWAG gas was injected into the IWAG drill sites of IF, 1Q, 2C, 2D, 30, and 3Q. KUPARUK EOR DEVELOPMENT STATUS - 3/99 0 Waterflood (20 DS) SSEOR + SSEOa project area (4 DSJ LSEOR project area + CPF 3 Expansion DS(18 DS) Year 2000+ Expansion DS 1 Current IWAG (6 DS) Current MWAG (15 DS) KUPARUK EOR DRILLSITES (SSEOR+LSEOR) INCREMENTAL EOR OIL RATE (Data Available from Jan 1993 through Dec 1998) Attachment 2 Kuparu k Oil Pool 1998 Annual Reservoir Surveillance Report Produced Fluid Volumes OIL GAS WATER MO YR STB MSCF BBL 1 1998 8366871 10653939 167191 55 2 1998 751 9654 961 7726 1 4876577 CUM OIL STB 1492438332 1 499957986 CUM GAS MSCF 1637968371 1647586097 1657944264 16675501 96 1 67761 2936 1686379495 1695492863 1704731 41 4 1 71 1799787 1 721 9981 67 173221 8980 1742852378 CUM WATER BBL 1146471655 1 161 348232 1178239657 1 1 934661 88 120941 0086 1224350787 12401 501 24 1255477440 1270024257 1 28594951 4 1 301 123825 1 31 6785790 1998 TOTAL 6762831 2 849081 14 1 385461 33 Attachment 3 Kuparuk Oil Pool 1 998 Annual Reservoir Surveillance Report Injected Fluid Volumes WATER STB 2 603991 8 2279531 1 2427641 0 24653883 24207627 24385295 23414815 2361 2023 22076628 23259900 246031 80 25440671 GAS MSCF 1006045 909783 1 137451 659709 1296665 9731 16 1 5701 83 771 685 1 146833 161 3077 2025806 2567400 1998 TOTAL 288765661 12624474 NGLS MSCF 8059521 727961 5 7725867 7527437 7370652 6329485 6294314 7734822 7314408 81 5691 2 765591 8 6477739 64861 687 CUM WATER MMSTB 7872.51 7895.31 791 9.58 7944.24 7968.44 7992.83 801 6.24 8039.86 8061.93 8085.1 9 81 09.79 81 35.24 CUM GAS BCF 1327.34 1335.52 1344.39 1352.58 1 361.24 1368.55 1376.41 1 384.92 1393.38 1403.1 5 1412.83 1 421.87 Attachment 4 Kuparuk River Oil Pool 1998 Annual Surveillance Report Reservoir Pressure Surveys STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION RESERVOIR PRESSURE REPORT 1 ST QTR 1998 Name of Operator ARC0 Alaska, Inc. true and correct to the best of my knowledge. Signed Title Optimization Tech Date 3/30] 9 9 Form 10-41 2 Submlt in Duplicate Rev 7 1 80 Address P. 0. Box 100360, Anchorage, AK 99510-0360 Unit or Lease Name Kuparuk River Unit liA-08 c 500292031 300 Well Name Field and Pool Kuparuk River Field Kuparuk River Oil Pool Sand Date Tested Datum Reference -6200' SS Production and Test Data Oil Gravlty 0.91 API Number Shut-in Time Production Rates (BblsfDay) (Mcfd) Oil Water Gas Gravity 0.71 0, G or WI Liquid Final Shut-in Tubing Press. . I I Gas, Gradlent Pressure at Pressure Test Data Wt. of Liquid , Column. Column , Press. , Datum , Tool Depth MD Wt. of Gas 8.H. Temp. . Caslng Final ObSe~ed Pressure STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION RESERVOIR PRESSURE REPORT 2ND QTR 1998 Name of Operator ARC0 Alaska, Inc. - 1 - - 2 0 0 1 6 8 9 6 4 5 D 5 B 2 5 2 2 5 3 5 1 1 1 1 7 1 1 5 1 3 2 1 - A Duplicate Address P. 0. Box 100360. Anchorage, AK 9951 0-0360 e and correct to the best of my knowledge. Title Optimization Tech Dote 3/30/4 9 Kuparuk River Unit Form Rev 7 Unit or Lease Name 1 D-09 C 500292287500 Well Name Submit Field and Pool Kuparuk River Field l~atum Reference loll Gravity lGas Gravlty -6200' SS 0.91 1 0.7 Production and Test Data Production Rates Wt. of Wt. of Pressure (Bbls/Day) (Mcfd) Liquid Liquid Gas Casing at oil1 water1 Gas Gradient Column Column Press. Datum Kuparuk River Oil Pool Sand Date Tested APi Number Pressure Test Data 0.G or WI Shut-in Time Tool Depth MD Final Shut-in Tubing Press. 8.H. Temp. Final Observed Pressure Form 10-41 2 Submit In Duoiicate STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMlSSiON RESERVOIR PRESSURE REPORT 3RD QTR 1998 Name of Operator Address ARC0 Alaska, inc. P. 0. Box 100360, Anchorage, AK 99510-0360 Rev 7 1 80 Unit or Lease Name y 1A-18 A 500292210300 0 0711 6/98 41 1375 7131 155 3364 108 77 48 3315 2D-01 A 5002921 19400 0 09/27/98 72 1700 6418 164 3183 454 322 371 3306 2D-12 A 5002921 13100 0 09/27/98 72 1500 8300 161 321 7 269 202 194 3318 2D-15 I3 5002921 18400 0 09/27/98 72 1600 6254 164 3479 264 209 198 3601 2E-10 A 500292124600 0 09/29/98 120 1400 6346 161 21 84 145 1 29 2271 2E-15 A 5002921 20600 0 09/29/98 120 1400 6754 159 1860 197 0 109 1926 2F-05X A 500292273000 0 09/28/98 96 1500 6597 163 3658 239 179 79 3780 2K-17 A 501032012100 0 0711 2/98 72 750 8693 150 1940 240 5 78 2032 2K-21 B 501032012300 0 07/26/98 5442 284 10500 155 3993 160 45 80 4000 2W-01 A 500292127300 0 0711 2/98 24 1306 6082 150 2585 472 392 955 3219 2W-06 A 500292121100 0 09/27/98 53 1450 7130 160 2943 837 41 9 827 3051 3M-13 A 500292172000 0 09/25/98 72 200 9016 156 2810 640 378 277 3228 3M-14 A 5002921 72600 0 09/25/98 70 175 6718 159 2656 600 396 279 3079 Weii Name Field and Pool Kuparuk River Field Datum Reference Oil Gravity Gas Gravity -6200' SS 0.91 0.71 Date Tested Sand Shut-in Time API Number 0.G or WI Final Shut-in Tubing Press. Pressure Test Data Tool Depth MD Production and Test Data 8.H. Temp. Production Rates (BbisIDay) (Mcfd) oil1 water1 Gas Wt. of Liquid Column Final Observed Pressure Liquid Gradient Casing Press. Wt. of Gas Column Pressure at Datum STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION RESERVOIR PRESSURE REPORT 4TH QTR 1998 Rev 7 1 80 Name of Operator ARC0 Alaska. Inc. Address P. 0. Box 100360, Anchorage, AK 99510-0360 Unit or Lease Name Kuparuk River Unit 1C.15 C 500292293200 0 12130198 99999 240 9126 155 3397 3 0 1 3292 1C-17 C 500292287200 WI 12/26/98 9999 800 10705 155 3531 0 4000 0 3458 1 E-35 C 500292292500 WI 12/23/98 99999 1000 11530 155 3586 0 0 0 3637 1 E-36 C 500292292700 0 11/23/98 99999 1200 11805 155 3688 0 0 0 3774 2D-05 A 5002921 1 5700 WI 10127198 96 2900 7700 155 5260 0 149 0 5340 3A-12 A 500292145900 0 1 1/24/98 72 134 7437 160 2345 309 46 324 2546 Well Name Field and Pool Kuparuk River Field Kuparuk River Oil Pool Sand Date Tested Datum Reference -6200' SS Production and Test Data Oil Gravity 0.91 API Number Shut-in Time Production Rates (BblslDay) (Mcfd) oil1 water1 Gas Gas Gravity 0.71 0. G or WI Liquid Gradient Final Shut-in Tubing Press. Pressure at Datum Pressure Test Data Wt.of Llquld Column Tool Depth MD Wt.of Gas Column B.H. Temp. Casing Press. Final Observed Pressure Attachment 5 Kuparuk River Oil Pool 1998 Annual Surveillance Report Injection Survey Data KUPARUK RIVER FIELD CONSERVATION ORDER 198 RULE 4 - INJECTIVITY PROFILES FIRST QUARTER 1998 SUBMITTAL WELL API NUMBER NUMBER 50- DATE OF DATE OF DATA TYPE REASON FOR WELL INITIAL PROFILE/ PROFILE/ PROFILE/ COMPLETION INJECTION SURVEY SURVEY SURVEY ZONES TAKING INJECTION INJECTION BWPD / MSCFD SEL SINGLE SEL SINGLE 12/91 01/10/98 SEP ZONE SI C 1500 BWPD 2514 BWPD 12/91 03/29/98 SEP ZONE SI C 2649 BWPD 1958 BWPD 02/20/98 SEP ZONE SI C 01/27/98 SEP ZONE OPEN C 03/31/98 SEP ZONE OPEN C-l 01/09/98 SPINNER FOLLOW UP SEL SINGLE SEL SINGLE TRIPLE 2591 BWPD 785 BWPD 690 BWPD 1134 BWPD 5155 BWPD 7405 BWPD SEL SINGLE SINGLE SEL SINGLE SEL SINGLE 15200 MSCFD 2680 MSCFD 03/06/98 SPINNER FOLLOW UP 03/04/98 SPINNER FOLLOW UP 02/19/98 SEP ZONE OPEN C 6720 BWPD 605 BWPD 5160 MSCFD 5160 MSCFD 2000 BWPD 7500 BWPD 2210 MSCFD 5410 MSCFD 03/02/98 SPINNER FOLLOW-UP 01/29/98 SEP ZONE FOLLOW-UP 03/11/98 SPINNER A/C SPLIT 02/01/98 SPINNER A/C SPLIT SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE 2370 MSCFD 5520 MSCFD 4880 BWPD 1074 BWPD 7956 BWPD 4615 BWPD WELL API NUMBER NUMBER 50- KUPARUK RIVER FIELD CONSERVATION ORDER 198 RULE 4 - INJECTIVITY PROFILES FIRST QUARTER 1998 SUBMITTAL DATE OF DATE OF DATA TYPE REASON FOR INITIAL PROFILE/ PROFILE/ PROFILE/ INJECTION SURVEY SURVEY SURVEY 11/85 01/30/98 SPINNER A/C SPLIT 11/85 01/30/98 SPINNER A/C SPLIT 03/07/98 SEP ZONE 02/14/98 SEP ZONE WELL ZONES COMPLETION TAKING INJECTION SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE INJECTION BWPD / MSCFD 10993 BWPD 1099 BWPD 5661 BWPD 0 BWPD 1260 BWPD 0 BWPD 0 BWPD 1057 BWPD KUPARUK RIVER FIELD CONSERVATION ORDER 198 RULE 4 - INJECTIVITY PROFILES SECOND QUARTER 1998 SUBMITTAL WELL API NUMBER NUMBER 50- DATE OF INITIAL INJECTION 05/83 05/83 09/91 11/92 10/93 03 /85 08/84 08/84 01/87 12/85 05/87 05/87 12/85 DATE OF PROFILE/ SURVEY 04/26/98 05/23/98 06/30/98 4/28/98 06/01/98 06/02/98 05/28/98 05/29/98 04/13/98 04/14/98 04/10/98 06/10/98 04/15/98 DATA TYPE PROFILE/ SURVEY SEP ZONE SPINNER SPINNER SEP ZONE SEP ZONE SPINNER SPINNER SPINNER SEP ZONE SEP ZONE SEP ZONE SEP ZONE SEP ZONE REASON FOR PROFILE/ SURVEY RES MNGMT RES MNGMT RES MNGMT OPEN C POST STIM RES MNGMT RES MNGMT RES MNGM'I' CLOSE C SAND CLOSE C SAND OPEN C SAND CLOSE C SAND CLOSE A SAND WELL COMPLETION SEL SINGLE SEL SINGLE SINGLE SEL SINGLE TRIPLE SINGLE SINGLE SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE ZONES TAKING INJECTION A+C C A+C C A+ C C-4 A A+C A+C A A+C C A+ C A A+C A A+ C A A+ C A A A+C A+C A A+C C INJECTION BWPD / MSCFD 6170 BWPD 6170 BWPD 3500 BWPD 3150 BWPD 1490 BWPD 1490 BWPD 1045 BWPD 1432 BWPD 6900 BWPD 2254 BWPD 3894 BWPD 3894 BWPD 590 BWPD 590 BWPD 753 BWPD 377 BWPD 2300 BWPD 1200 BWPD 1650 BWPD 725 BWPD 3200 BWPD 8900 BWPD 8900 BWPD 4000 BWPD 7200 BWPD 6800 BWPD KUPARUK RIVER FIELD CONSERVATION ORDER 198 RULE 4 - INJECTIVITY PROFILES THIRD QUARTER 1998 SUBMITTAL WELL API NUMBER NUMBER 50- DATE OF DATE OF DATA TYPE REASON FOR INITIAL PROFILE/ PROFILE/ PROFILE/ INJECTION SURVEY SURVEY SURVEY WELL ZONES COMPLETION TAKING INJECTION INJECTION BWPD / MSCFD SEL SINGLE SEL SINGLE 03/83 07/30/98 SEP ZONE SI C 1910 BWPD 1849 BWPD 05/83 07/17/98 SEP ZONE OPEN C 534 BWPD 1831 BWPD 07/26/98 SEP ZONE OPEN C 07/15/98 SEP ZONE OPEN C 07/13/98 SEP ZONE SI C 07/31/98 SEP ZONE SI C 08/18/98 SPINNER RES MNGMT SEL SINGLE TRIPLE SEL SINGLE SEL SINGLE SEL SINGLE 661 BWPD 2423 BWPD 1335 BWPD 2421 BWPD 3595 BWPD 1166 BWPD 5742 BWPD 5745 BWPD 5623 BWPD 5623 BWPD 07/14/98 SZT CLOSE C SAND SEL SINGLE 08/01/98 SPINNER RES MNGMT SINGLE 09/24/98 SPINNER RES MNGMT SEL SINGLE 09/01/98 SZT OPEN C SAND SEL SINGLE 1600 BWPD 1603 BWPD 1181 BWPD 1181 BWPD 7385 MSCFD 73 9 MSCFD 3514 BWPD 703 BWPD KUPARUK RIVER FIELD CONSERVATION ORDER 198 RULE 4 - INJECTIVITY PROFILES FOURTH QUARTER 1998 SUBMITTAL WELL API NUMBER NUMBER 50- DATE OF DATE OF DATA TYPE REASON FOR WELL INITIAL PROFILE/ PROFILE/ PROFILE/ COMPLETION INJECTION SURVEY SURVEY SURVEY ZONES TAKING INJECTION INJECTION BWPD / MSCFD SEL SINGLE SEL SINGLE 12/91 12/24/98 SEP ZONE OPEN C 1133 BWPD 8992 BWPD 12/91 12/07/98 SEP ZONE OPEN C 1589 BWPD 3386 BWPD SEP ZONE SEP ZONE SEP ZONE SPINNER SEP ZONE OPEN C SI C OPEN C RES MNGMT OPEN C SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE TRIPLE 1108 BWPD 2641 BWPD 3392 BWPD 1806 BWPD 1001 BWPD 2616 BWPD 2973 BWPD 595 BWPD 845 BWPD 3974 BWPD 10/19/98 SEP ZONE 10/13/98 SPINNER 10/04/98 SPINNER SI C RES MNGMT RES MNGMT SEL SINGLE SEL SINGLE SEL SINGLE 2961 BWPD 3341 BWPD 3069 BWPD 921 BWPD 2997 MSCFD 300 MSCFD Attachment 6 Kuparuk River Oil Pool 1998 Annual Surveillance Report Production Survey Data WELL API NUMBER NUMBER 50- 1A-08 02920313-00 1E-07 02920495-00 1Q-04 02921250-00 1Q-22 02922595-00 1R-07 02921332-00 1Y-27 02922379-00 2A-11 10320057-00 2A-14 10320040-00 DATE OF INITIAL PRODUCTION 12/81 12/81 03/95 02/96 07/85 07/93 04/86 02/86 DATE OF PROFILE/ SURVEY 03/23/98 2/23/98 1/30/98 02/05/98 2/13/98 03/11/98 1/9/98 1/8/98 KUPARUK RIVER FIELD CONSERVATION ORDER 173 RULE 9 - PRODUCTIVITY PROFILES FIRST QUARTER 1998 SUBMITTAL DATA TYPE PROFILE/ SURVEY SEP ZONE SEP ZONE SEP ZONE SEP ZONE SEP ZONE SEP ZONE SEP ZONE SEP ZONE REASON FOR PROFILE/ SURVEY SI C OPEN C RES. MGMT RES. MGMT OPEN C RES. MGMT OPEN C SAND OPEN C SAND 12/85 12/30/97 SEP ZONE CLOSE C SND 11/86 1/5/98 SEP ZONE OPEN C SAND WELL COMPLETION TYPE SEL SINGLE TRIPLE SS ss SEL SINGLE SS ss SS ZONES PROD- UCING A+C A A A+C A A+C A A+C A A+C A A+C A A+C A A+ C A A+ C A A+ C PRODUCTION OIL BOPD 409 230 220 138 186 1284 2 9 784 805 431 116 530 758 1133 563 827 531 331 563 827 WATER BWPD 4449 478 20 3283 30 182 0 2 6 502 1690 276 4494 795 3684 1027 3031 240 814 1027 3031 GAS MSCFD 1435 606 78 925 683 1338 695 681 522 271 1011 3431 1196 5809 918 4114 381 288 918 4114 WELL API NUMBER NUMBER DATE OF INITIAL PRODUCTION DATE OF PROFILE/ SURVEY 7/29/98 5/31/98 5/21/98 05/22/98 KUPARUK RIVER FIELD CONSERVATION ORDER 173 RULE 9 - PRODUCTIVITY PROFILES SECOND QUARTER 1998 SUBMITTAL DATA TYPE REASON FOR PROFILE/ PROFILE/ SURVEY SURVEY SEP ZONE OPEN C SPINNER RES MNGMT SEP ZONE SI C SEP ZONE SI C 4/12/98 SEP ZONE 5/23/98 SEP ZONE 4/25/98 SEP ZONE 06/24/98 SEP ZONE 4/29/98 SEP ZONE 04/24/98 SEP ZONE 04/24/98 SEP ZONE OPEN C OPEN C SI C, OPEN A RES MGMT RES MGMT WELL COMPLETION TYPE SEL SINGLE TRIPLE TRIPLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE 05/10/98 SEP ZONE SI C-1, OPEN C- TRIPLE 04/21/98 SEP ZONE RES MGMT SINGLE ZONES PROD- UCING A A+C A C A+C A A+C A A A+C A+C A A A+C A+C A C A A+C A A+C A A+C-1 A+C-3 A+C PRODUCTION OIL BOPD 2 17 711 0 404 379 403 722 377 491 995 472 519 392 157 407 43 1 122 1199 2090 111 509 415 1995 956 130 496 WATER BWPD 464 3240 0 1240 1930 60 3936 1318 2 4399 5472 518 536 132 895 9 4 1693 788 8176 462 2234 600 3821 2560 7916 456 GAS MSCFD 144 1698 0 1075 1828 155 879 218 304 5258 5120 320 244 7 9 1021 381 407 794 9443 16 655 1013 11853 1638 2732 883 KUPARUK RIVER FIELD CONSERVATION ORDER 173 RULE 9 - PRODUCTIVITY PROFILES SECOND QUARTER 1998 SUBMITTAL WELL API DATE OF DATE OF DATA TYPE REASON FOR WELL ZONES PRODUCTION NUMBER NUMBER INITIAL PROFILE/ PROFILE/ PROFILE/ COMPLETION PROD- OIL WATER GAS 50- PRODUCTION SURVEY SURVEY SURVEY TYPE UCING BOPD BWPD MSCFD 3A-01 02921412-00 11/85 03/27/98 SEP ZONE OPEN A SAND SEL SINGLE C 162 353 627 A 204 760 724 3A-03 02921432-00 11/85 03/15/98 SEP ZONE OPEN A SAND SEL SINGLE C 492 3378 975 A 199 1 817 KUPARUK RIVER FIELD CONSERVATION ORDER 173 RULE 9 - PRODUCTIVITY PROFILES THIRD QUARTER 1998 SUBMITTAL WELL API NUMBER NUMBER DATE OF INITIAL PRODUCTION DATE OF PROFILE/ SURVEY 07/05/98 07/16/98 09/17/98 7/13/98 DATA TYPE REASON FOR PROFILE/ PROFILE/ SURVEY SURVEY SEP ZONE SI C SEP ZONE OPEN C SEP ZONE OPEN C SI A, PERF C RES MNGMT SEP ZONE SEP ZONE SPINNER SEP ZONE SEP ZONE SEP ZONE SEP ZONE SEP ZONE SEP ZONE CMT SQZ C A/C SPLIT OPEN C SI C OPEN C WELL COMPLETION TYPE SEL SINGLE SEL SINGLE TRIPLE SINGLE SEL SINGLE SINGLE SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE SEL SINGLE ZONES PROD- UCING A+C A A A+C A A+C A C A+C A A+C A A+C A A+C A A A+C A+C A A+C A A+C A A A+C PRODUCTION OIL BOPD 519 108 125 472 124 357 197 1895 106 666 445 109 168 0 713 707 638 674 580 854 1283 171 761 1328 461 1853 WATER BWPD 2126 268 228 3676 496 1342 2 0 1935 5256 5442 1578 240 765 0 3944 142 4 3537 3206 0 8272 602 3484 4510 0 9998 GAS MSCFD 1138 4 8 158 1733 260 176 119 3201 239 2980 230 3 2 4 3 0 1242 353 303 1436 565 401 9786 12 1979 2452 276 1313 KUPARUK RIVER FIELD CONSERVATION ORDER 173 RULE 9 - PRODUCTIVITY PROFILES THIRD QUARTER 1998 SUBMITTAL WELL API DATE OF NUMBER NUMBER INITIAL 50- PRODUCTION DATE OF PROFILE/ SURVEY DATA TYPE REASON FOR WELL PROFILE/ PROFILE/ COMPLETION SURVEY SURVEY TYPE ZONES PROD- UCING PRODUCTION OIL WATER GAS BOPD BWPD MSCFD SEP ZONE SI C SEL SINGLE SEP ZONE SI C SEL SINGLE SEP ZONE OPEN C-1 TRIPLE SEP ZONE CMT SQZ C SINGLE SEP ZONE CLOSE C SAND S S SPINNER RES MNGMT SINGLE KUPARUK RIVER FIELD CONSERVATION ORDER 173 RULE 9 - PRODUCTIVITY PROFILES FOURTH QUARTER 1998 SUBMITTAL WELL API NUMBER NUMBER DATE OF INITIAL PRODUCTION DATE OF PROFILE / SURVEY 11/11/98 11/24/98 12/09/98 11/1/98 DATA TYPE PROFILE/ SURVEY REASON FOR PROFILE/ SURVEY WELL COMPLETION TYPE ZONES PROD- UCING A+C A A A+C A A+C A+C A A A+C A A+C A A+C A A+C A+C A A+C- 1,3 A+C- 1 A+C-3,4 A+C-1,3,4 A+C-1,3,4 A+C-1 A+C A PRODUCTION OIL BOPD 805 247 365 585 147 868 315 189 80 159 243 474 101 103 174 1516 3 64 117 960 1031 168 211 187 759 794 794 WATER BWPD 2424 768 1159 1557 1356 3435 2090 554 270 1036 8 5 368 1299 432 7114 8744 744 6188 5663 683 672 1294 5548 456 456 GAS MSCFD 1104 358 366 1334 258 3806 144 125 7 9 429 106 275 24 154 50 12916 5288 0 2798 3854 363 59 320 6 6 6 605 605 SEP ZONE SEL SINGLE SEP ZONE OPEN C SEL SINGLE SEP ZONE OPEN C/PULL PAT1 TRIPLE SEP ZONE SEL SINGLE 12/20/98 SEP ZONE 12 /13 /98 PERF C 12/28/98 PERF C 10/07/98 SEP ZONE 12/25/98 SEP ZONE 12/20/98 SEP ZONE 10/05/98 SEP ZONE OPEN C SEL SINGLE RES MNGMT SINGLE RES MNGMT SINGLE OPEN C SEL SINGLE SEL SINGLE TRIPLE OPEN C-1 TRIPLE 11/16/98 SEP ZONE 11/01/98 SPINNER TRIPLE RES MNGMT SINGLE KUPARUK RIVER FIELD CONSERVATION ORDER 173 RULE 9 - PRODUCTIVITY PROFILES FOURTH QUARTER 1998 SUBMITTAL WELL API DATE OF DATE OF DATA TYPE REASON FOR WELL ZONES PRODUCTION NUMBER NUMBER INITIAL PROFILE/ PROFILE/ PROFILE/ COMPLETION PROD- OIL WATER GAS 50- PRODUCTION SURVEY SURVEY TYPE UCING BOPD BWPD MSCFD SURVEY 3F-10 02921481-00 02/86 11/30/98 SPINNER RES MNGNT SS A+C 465 4784 1696 A 140 0 339 Attachment 7 Kuparuk River Oil Pool 1998 Annual Surveillance Report Miscible lnjectant Composition ATTACHMENT 7 KUPARUK RIVER UNIT MI COMPOSITION Date 1 m/98 111 5/98 211 5/98 3/28/98 4nm 4f25m 511 198 5/7/98 511 7/98 5/21 /98 6/4/98 611 3/98 611 6198 7/7/98 711 3/98 7/24/98 8/5/98 8/17/98 8R7m 9/3/98 911 0198 911 7/98 1 014198 1011 5/98 10E3198 10/28/98 lll5/98 11/2m 1 lE5/98 1 m/98 1211 0198 1mm Facility C02 CPFl 0.860 CPFl 1.246 CPF1 1.080 CPFl 0.970 CPFl 0.900 CPFl 0.919 CPFl 0.910 CPFl 0.936 CPFl 0.953 CPFl 0.953 CPFl 0.885 CPFl 0.718 CPF1 0.723 CPFl 0.724 CPFl 0.727 CPFl 0.750 CPFl 0.720 CPFl 0.682 CPFl 0.737 CPFl 0.719 CPFl 0.729 CPFl 0.744 CPFl 0.729 CPFl 0.728 CPFl 0.742 CPFl 0.727 CPFl 0.723 CPFl 0.737 CPFl 0.735 CPFl 0.740 CPFl 0.712 CPF1 0.745 MMPc 2889 2913 2854 2906 2946 3368 3349 3032 2813 2887 2800 2979 3089 3137 2878 3067 3221 331 1 3012 3275 2976 3042 3119 3068 3108 3127 3085 3020 3098 3024 3050 EOR ANALYTICAL REPORT KUPARUK IABORATORY ARC0 ALASKA INC. Facility CPF-1 Sample Date 06/04/98 Distribution: Facility Engineer Facility Supervisor Tuan Ma Sample Time. 15:42 Line Pressure Line Temp. Flow (MSCFD) 1 7051 KDGS MW Corrected Flow Component C02 N 2 C 1 C2 C3 i C4 nC4 iC5 nC5 C6 C7 C8+ 'otal Moles MW 62.01 19.22 30.14 30.44 Density (Ibs/scf) 37.06 Actual ENFL Rate Ideal BG Rate Actual Gas Rate Rate (Ib/d) 2782542.92 251 6539.1 75 2480503.25 Rate (MOW) 44871.05 130932.8049 Rate (MMSCFD) 49754465.86 Target Blend Gas Ratio (Ib BGIlb EF) 0.90 Actual Blend Rat (From measured flow rates) 0.89 Youngren MMP 2900.00 Actual MMP (Using Lab MI Composition) 2800 Calc MMP (Using Lab BGIENFL comp and rates) 2863 Solvent (Lab) (Mole %) 0.435 1.466 1.203 0.885 1.200 Lean Gas (Lab) (Mole %) MI (Target) (Mole %) MI (Lab) (Mole %) MI (Calc) (Mole %) ATTACHMENT 7 KUPARUK RIVER UNIT MI COMPOSITION Date 1 I0198 1 11 4/98 2/15/98 311 7/98 3m/98 4i7m 4120/98 5/7/98 511 7/98 6/4/98 6/12/98 6/16/98 7/7/98 711 5/98 811 9/98 8t27198 9/3/98 9/lO/98 911 7/96 10/4/98 1 011 5/98 10/22m 10t28/98 11/5/98 1 lR7/98 12/3/98 1 2/13/98 12/24/98 Faciliy CPF2 CPF2 CPF2 CPF2 CPFZ CPF2 CPF2 CPF2 CPF2 CPF2 CPF2 CPF2 CPF2 CPF2 CPFZ CPF2 CPF2 CPFZ CPFZ CPF2 CPF2 CPF2 CPFZ CPF2 CPF2 CPF2 CPFZ CPF2 MMPc MMPm 2037 2874 2878 2919 2819 3190 2891 3007 2812 2843 3290 3003 2746 2735 2942 2982 3176 2945 3150 3047 3172 3050 3027 3203 3155 3170 3092 3067 3220 2933 3310 301 7 EOR ANALYTICAL REPORT KUPARUK LABORATORY ARC0 ALASKA INC. Facility CPF-2 Sample Date 01 11 4/98 Distribution: Facility Engineer Facility Supervisor Richard Clausen Tuan Ma Sample Time. 14:21 Line Pressure 290 Line Temp. N A Flow (MSCFD) 39296 KDGS MW Corrected Flow Component I Solvent (Lab) I Lean Gas (Lab) I MI (Target) I MI (Lab) I MI (Calc) N2 C 1 C2 C3 iC4 nC4 iC5 nC5 C6 C7 C8+ .otal Moles C02 MW 64.21 20.52 29.94 29.92 Density (Ibslscf) 37.71 Actual ENFL Rate Ideal BG Rate Actual Gas Rate Rate (Ib/d) 6640237.62 7723033.084 7649590.79 Rate (Molld) 1034 10.53 376283.5368 Rate (MMSCFD) 142987744 Target Blend Gas Ratio (Ib BG/lb EF) 1.16 Actual Blend Rat (From measured flow rates) 1.15 Youngren MMP 2900.00 b MI b BG Target Blend Ratio (bbls EFIMSCF MI) (Mole %) Target Blend Ratio (MSCF Mllbbl EF) Target Blend Ratio (MSCF BGIMSCF EF)) 0.197 1.319 1.077 1.162 1.075 (Mole %) (Mole %) I (Mole %) I (Mole %) ATTACHMENT 7 KUPARUK RIVER UNIT MI COMPOSITION Date 1B/98 1 11 4/98 211 5/98 3/17/98 3L?8/98 4/4/98 4m/98 511 /98 5/7/98 5R1/98 6/4/98 611 2/98 611 6/98 6R1/98 7ffm 8/18/98 8L?7/98 9t3/98 911 OM 911 7/98 1 014M 1011 5/98 10128/98 llW/98 1 lI25/98 12/3/98 12/lo/98 12124/98 Facility CPF3 CPF3 CPF3 CPFB CPFB CPF3 CPF3 CPFB CPFB C PF3 CPF3 CPF3 CPFB CPF3 CPF3 CPFB CPFB CPFB CPFB CPFB CPFB CPF3 CPF3 CPFB CPFB CPFB CPF3 CPFB EOR ANALYTICAL REPORT KUPARUK LABORATORY ARC0 ALASKA INC. Facility CPF-3 Sample Date 09/03/98 Distribution: Facility Engineer CPF-3 NSK22 Facility Supetvisor CPF-3 NSK-22 Tuan Ma NSK-69 Sample Time. 13:56 11:lO Line Pressure 450 CPFl Line Temp. N A Flow (MSCFD) 2520 9385 KDGS MW Corrected Flow MW 71.49 19.53 30.92 33.64 Density (Ibslscf) 39.06 Actual ENFL Rate Ideal BG Rate Actual Gas Rate Rate (lbld) 474084.37 461 053.1 821 482321 -02 Rate (Molld) 663 1.58 23608.34335 Rate (MMSCFD) 897 1 1 70,472 Target Blend Gas Ratio (Ib BG/lb EF) 0.97 Actual Blend Rat (From measured flow rates) 1.02 Youngren MMP 2900.00 Actual MMP (Using Lab MI Composition) 2141 Calc MMP (Using Lab BGIENFL co Component Lean Gas (Lab) (Mole %) Solvent (Lab) (Mole %) C02 N 2 C 1 C2 C3 iC4 nC4 iC5 nC5 C6 C7 C8+ 'otal Moles MI (Target) (Mole %) 0.463 1 .I61 1.008 0.733 1.013 0.019 0.421 0.333 0.281 0.336 12.830 85.124 69.270 66.487 69.821 5.510 7.414 6.996 6.618 7.01 1 10.228 3.584 5.041 5.164 4.990 4.002 0.600 1.346 1.443 1.320 1 1.346 1.163 3.396 3.653 3.31 8 6.305 0.212 1,548 1.776 1.502 8.103 0.191 1.926 2.095 1.866 12.236 0.091 2.754 3.315 2.662 13.932 0.035 3.083 3.964 2.977 15.026 0.004 3.298 4.47 1 3.1 84 100.00 100.00 100.00 100.00 100.00 MI (Lab) (Mole %) MI (Calc) (Mole %) Attachment 8 Kuparuk River Oil Pool 1998 Annual Surveillance Report LSEOR Development Plan LSEOR Project NGL utilization in 1998 averaged 28 MBPD of PBU NGL Imports and 14 MBPD of Indigenous NGLs for an annual average of 246 MMSCFD of MI production (-188 MMSCFD for LSEOR and -57 MMSCFD for SSEOR). This MI is currently injected into 11 of the 18 drillsites including 3F, the CPF3 Expansion, sanctioned under the LSEOR project. MI injection into the Tarn Field is slated for Dec98 at -5OMMSCFD. This leaves 7 drillsites sanctioned under the LSEOR project that have yet to receive MI. Future plans for NGL utilization include an NGL pump upgrade, installed in March of 1999, which should increase MI production by 40 MMSCFD. The NGL pump upgrade will increase the amount of PBU NGL Imports of up to 36 MBPD, the annual average for 1999. This increase in MI production will allow MI injection in the Tarn Field, and the other Kuparuk drillsites sanctioned under the LSEOR project (potentially by 1999 year end). The increase in MI prod will allow expansion to six Eastern CPF-1 drillsites in the year 2000+ timeframe: 1 B, 1 E, 1 C, 1 D, 1 H, and 1 L. Tarn MI will increase to -70MMSCFD after the NGL pump upgrade.