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2018 Swanson KGSF
Hilcorp Alaska, LLC April 1, 2019 Jesse Chmielowski, Commissioner Alaska Oil and Gas Conservation Commission 333 W. 7th Avenue, Suite 100 Anchorage, AK 99501-3539 Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 100 Anchorage, AK 99503 Phone: 907/777-8300 Fax: 907/777-8301 RE: 2018 Annual Material Balance Calculations of Production and Iniection Volumes: Kenai Gas Storage Facility #1 (KGSF#1 & KGSF#7A), Swanson River Field Dear Commissioner Chmielowski: Attached for Alaska Oil and Gas Conservation Commission (AOGCC) review is the 2018 annual material balance calculation of production and injection volumes for the Kenai Gas Storage Facility #1 (KGSF#1 & KGSF#7A), as required per Storage Injection Order #2A. This material balance includes all primary production from the Tyonek 64-5 reservoir (via the SRU 43-28 wellbore), as well as all storage operations from the two gas storage wells, KGSF #1 and KGSF #7A. Primary production occurred from December 1998 through May 2001 and storage operations are on-going since June 2001. Gas storage production and injection volumes for KGSF #1 (formerly SRU 43-28) and KGSF #7A have been reported on a monthly basis to the state through Dec 31, 2018. Pressures from the Tyonek 64-5 reservoir have been measured/estimated from both downhole pressure buildups and from surface shut-in tubing pressures. The surface readings were then converted to downhole pressures at a common datum of 6,369 ft TVD. These data points are tabulated in Attachment #1 and plotted versus the net cumulative production (production less injection) on the standard P over Z plot, shown in Attachment #2. The P over Z plot, Attachment #2, shows that the 2018 production and injection cycle followed the primary production profile as expected. This storage reservoir continues to show that the gas is contained within zone and is an important resource in helping meet peak gas requirements during the winter season. If you or your staff has any questions regarding this annual report, please contact meat 907-777- 8460. Sincerely, Anthony McConkey Petroleum Engineer Attachments: 1. Tyonek 64-5 Sand POZ Data 2. KGSF #1 Facility (Tyonek 64-5 Sand) - P/Z vs Cumulative Production Plot ATTACHMENT #1 -- KGSF POZ DATA (64-5 Sand) Parameter Value Units Gas Gravity 0.563 3306 Bench Datum 6369 ft (tvd) Datum Temp. 122 °F Avg Temp. 102 �F Primary Production 12/05/98 SITP 0 Test Gauge 3306 0.0000 Datum 07/27/99 SITP Wellname Date Test Type Duration Measured Pressure at Z Factor Pressure, Cum Gas, bcf P/Z, Psia 0.8954 1100 1.0690 (hrs) Test Depth MTD, psia 0 Psia 0.9353 626 1.2700 669 06/09/01 SITP (MTD),ft 380 0.9533 441 1.3390 463 Primary Production 12/05/98 SITP 0 2850 0.8781 3306 0.0000 3765 07/27/99 SITP 0 1775 0.8529 2059 0.5610 2414 09/09/00 BHP buildup 6395 882 0.8954 1100 1.0690 1229 02/20/01 SITP 0 540 0.9353 626 1.2700 669 06/09/01 SITP 0 380 0.9533 441 1.3390 463 2001/2002 Iniection Cvcle 07/11/01 SITP 21 0 875 0.9018 1015 1.1480 1126 09/18/01 SITP 4 0 1820 0.8522 2111 0.6730 2477 09/20/01 SITP 24 0 1810 0.8524 2099 0.6780 2463 10/09/01 SITP 8 0 1980 0.8514 2297 0.5720 2698 04/05/02 SITP 15 0 2280 0.8551 2645 0.4000 3093 07/12/02 ISITP 0 2620 1 0.8666 1 3039 0.1900 3507 07/26/02 ISITP 1 0 2630 1 0.8671 1 3050 1 0.2000 3518 2002/2003 Production Cycle 12/05/02 ISITP 65 1 0 1 1415 1 0.8643 1 1641 0.7400 1899 07/25/03 ISITP 1 0 1 224 1 0.9719 1 260 1 1.2520 268 2003 Injection Cycle 12/29/03 ISITP 19 0 2440 0.8596 2829 0.2540 3291 2003/2004 Production Cycle 04/28/04 ISITP 24 1 0 1 2075 1 0.8518 2406 1 0.4450 2825 2004 Injection Cycle 07/14/04 SITP 12 0 2565 0.8643 1 2974 0.1530 1 3441 12/05/04 ISITP 96 1 0 1 2865 1 0.8788 1 3322 -0.0820 1 3780 2004/2005 Production Cycle 06/08/05 ISITP 6 1 0 2080 0.8518 1 2412 0.3960 2832 2005 Injection Cycle 08/08/05 SITP 1 1 1 0 1 2828 1 0.8768 1 3279 0.0220 3740 12/30/05 ISITP 1 72 1 0 1 2786 1 0.8746 1 3231 1 -0.0440 1 3694 2005/2006 Production Cycle 03/22/06 ISITP 1 24 1 0 1 1905 1 0.8515 1 2209 0.4208 2594 2006 Injection Cycle 07/10/06 SITP 240 0 2815 0.8761 3264 -0.0482 3726 08/14/06 SITP 456 0 2687 0.8697 3116 0.0303 3583 09/30/06 SITP 288 0 1 2815 0.8761 3264 -0.0678 3726 2006/2007 Production Cycle 12/04/06 ISITP 18.5 0 2665 0.8686 3090 0.0329 3557 01/10/07 ISITP 9 0 2450 0.8600 2841 0.0763 3304 03/26/07 ISITP 96 0 2231 0.8540 2587 0.2442 3029 2007 Injection Cycle 04/27/07 SITP 192 0 2828 0.8768 3279 -0.0314 3740 06/04/07 SITP 120 0 2711 0.8708 3144 0.0206 3610 09/11/07 SITP 648 0 2717 0.8711 3151 -0.0028 3617 2007/2008 Production Cycle 12/02/07 ISITP 144 1 0 1 2604 1 0.8654 1 3005 1 0.0284 3473 Page 1 2008 Iniection Cvcle 1760 05/02/08 01/17/08 ISITP 192 1 0 1 2078 1 0.8517 1 23970.3056 2605 1 2814 SITP 04/08/08 ISITP 888 1 0 1 1760 1 0.8534 1 2026 1 0.4748 1 2374 2008 Iniection Cvcle 1760 05/02/08 SITP 1320 0 1925 0.8515 2218 0.4086 2605 07/01/08 SITP 528 0 2643 0.8670 3049 0.0799 3517 07/28/08 SITP 528 0 2648 0.8673 3055 0.0728 3523 09/16/08 SITP 528 0 2664 0.8679 3073 0.0526 3541 09/30/08 SITP 120 0 2670 0.8682 3080 0.0482 3547 ►�iI1F1plell marisOMMiGTiTKRala 2uuy infection cycie 06/14/09 SITP 240 0 2781 0.8736 3209 0.0388 3673 07/13/09 SITP 1008 0 2850 0.8772 3287 -0.0492 3747 08/10/09 SITP 552 0 2828 0.8760 3262 -0.0489 3724 2009/2010 Production Cycle 10/12/09 01/16/09 ISITP 1 60 1 0 1 1392 1 0.8661 1599 0.6279 1846 SITP 02/19/09 ISITP 1 24 1 0 1 1376 1 0.8782 1 1361 1 0.6830 1550 2uuy infection cycie 06/14/09 SITP 240 0 2781 0.8736 3209 0.0388 3673 07/13/09 SITP 1008 0 2850 0.8772 3287 -0.0492 3747 08/10/09 SITP 552 0 2828 0.8760 3262 -0.0489 3724 2009/2010 Production Cycle 10/12/09 SITP 96 0 2630 0.8740 3218 -0.0552 3682 01/24/10 SITP 96 0 2528 0.8665 3036 0.0191 3504 03/08/10 SITP 24 0 2231 0.8624 2919 0.0842 3385 08/11/10 SITP 336 0 2313 0.8556 2671 0.2266 3122 2010/2011 Iniection and Production Cvcle 10/20/10 SITP 168 0 3134 0.8948 3626 -0.3103 4052 12/08/10 SITP 20 0 3021 0.8879 3500 -0.2949 3942 12/21/10 SITP 20 0 2727 0.8722 3176 -0.1455 3641 03/01/11 SITP 24 0 1123 0.8813 1310 0.5776 1486 KGSF#7A 03/21/11 PBU 48 5300 775 0.8904 1 1035 0.6857 1162 2011/Z012 Injection and Production Gycle KGSF#1 05/20/11 PBU 528 6650 1119 0.8735 1445 0.6857 1654 KGSF#1 06/27/11 PBU 20 6376 2345 0.8588 2802 0.2062 3263 KGSF#1 07/04/11 PBU 72 5300 2856 0.8567 2720 0.1768 3175 KGSF#1 07/31/11 SITP 576 0 2395 0.8582 2777 0.1515 3236 KGSF#1 09/23/11 SITP 48 0 2596 0.8656 3010 0.0584 3478 KGSF#1 10/04/11 SITP 312 0 2585 0.8651 2998 0.0586 3465 KGSF#1 11/01/11 SITP 288 0 2758 0.8731 3198 -0.0417 3663 KGSF #1 12/20/11 SITP SITP 0 2869 0.8942 3266 -0.0666 3652 KGSF #1 02/01/12 SITP BHP 0 2185 0.8735 2491 0.2474 2852 KGSF #1 03/04/12 SITP 0 2358 0.8764 2688 0.1799 3067 KGSF #1 04/24/12 SITP 0 2004 0.8724 2284 0.3638 2618 KGSF #1 05/10/12 SITP 0 1963 0.8724 2237 0.3819 2564 KGSF#7A 05/31/12 PBU 24 6385 1917 0.8555 2247 0.4181 2627 KGSF #1 06/07/12 SITP 0 1934 0.8725 2204 0.4103 2526 2012/2013 Injection and Production Cycle KGSF #1 07/25/12 SITP 0 2057 0.8725 2345 0.3677 2688 KGSF #1 07/27/12 PBU 696 0 2043 0.8516 2375 0.3679 2789 KGSF #1 10/29/12 SITP 0 2856 0.8937 3252 -0.0348 3639 KGSF #1 12/17/12 SITP 0 2193 0.8736 2500 0.2702 2862 KGSF #1 01/17/13 SITP 0 2523 0.8805 2950 0.1700 3351 KGSF #1 02/18/13 SITP 0 2394 0.8763 2801 0.2204 3196 KGSF #1 04/17/13 SITP 0 2892 0.8965 3372 -0.0034 3761 KGSF #1 05/11/13 SITP 0 2854 0.8946 3329 0.0020 3721 KGSF #1 07/13/13 BHP 6385 3311 0.8938 3309 1 0.0080 3702 2013/2014 Injection and Production Cycle KGSF #1 07/13/13 BHP 6385 3311 0.8938 3309 0.0080 3702 KGSF #1 08/20/13 SITP 0 2,815 0.8939 3303 0.0080 3695 KGSF #1 10/11/13 SITP 0 2,775 0.8918 3257 0.0294 3652 Page 2 KGSF #1 12/12/13 SITP 0 2,429 0.8783 2859 0.1983 3255 KGSF#1 04/18/14 SITP 0 3,117 0.9131 3647 -0.0878 3994 KGSF #1 05/05/14 SITP 0 2,917 0.8997 3419 -0.0109 3800 KGSF #1 06/30/14 SITP 0 2,902 0.8988 3402 -0.0088 3785 2014/2015 Injection and Production Cycle KGSF #1 06/30/14 SITP 0 2,902 0.8988 3402 -0.0088 3785 KGSF #1 10/14/14 SITP 0 2,656 0.8863 3120 0.0996 3520 KGSF #1 10/29/14 SITP 0 2,640 0.8857 3102 0.1285 3502 KGSF #1 11/14/14 SITP 0 2,605 0.8843 3062 0.1537 3462 KGSF #1 12/04/14 SITP 0 2,628 0.8852 3088 0.1548 3489 KGSF #1 12/31/14 SITP 0 2,649 0.8860 3112 0.1553 3513 KGSF #1 01/09/15 BHP 4 6384 3,103 0.8857 3102 0.1559 3503 KGSF #1 02/22/15 SITP 0 2,595 0.8839 3050 0.1911 3451 KGSF #1 04/01/15 SITP 0 2,557 0.8825 3006 0.2237 3407 KGSF #1 04/27/15 SITP 0 2,224 0.8746 2621 0.3545 2997 KGSF#1 05/14/15 SITP 0 2,112 0.8737 2491 0.4098 2851 KGSF #1 05/16/15 BHP 6 6369 2,474 0.8737 2474 0.4098 2832 KGSF #1 05/30/15 SITP 0 2,175 0.8741 2565 0.3826 2934 KGSF #1 06/15/15 SITP 0 2,172 0.8741 2561 0.3880 2930 KGSF#1 07/02/15 SITP 0 2,184 0.8742 2575 0.3886 2946 KGSF#1 07/15/15 SITP 0 2,120 0.8738 2501 0.4095 2862 KGSF #1 08/03/15 SITP 0 1,998 0.8738 2358 0.4627 2699 KGSF#1 08/16/15 SITP 0 1,942 0.8742 2293 0.5008 2623 KGSF #1 08/25/15 BHP 1 6371 2,238 0.8747 2238 0.5435 2559 KGSF #1 09/03/15 SITP 0 1,611 0.8788 1993 0.5755 2268 KGSF #1 09/14/15 SITP 0 1,755 0.8760 2137 0.5635 2440 KGSF #1 09/28/15 SITP 0 1,755 0.8760 2137 0.5909 2440 KGSF#1 10/08/15 SITP 0 1,719 0.8766 2101 0.6022 2397 KGSF#1 11/13/15 SITP 0 2,198 0.8742 2580 0.4528 2951 KGSF #1 11/18/15 SITP 0 2,081 0.8737 2463 0.4604 2819 KGSF #1 12/08/15 SITP 0 2,640 0.8830 3022 0.2585 3423 2016/2017 Injection and Production Cycle KGSF #1 01/19/16 SITP 0 2,830 0.8951 3327 0.1276 3716 KGSF #1 02/01/16 SITP 0 2,814 0.8942 3308 0.1293 3699 KGSF #1 02/23/16 SITP 0 2,757 0.8913 3244 0.1408 3640 KGSF #1 03/04/16 BHP 6390 2,675 0.8870 3139 0.1781 3539 KGSF #1 03/15/16 SITP 0 2,665 0.8870 3139 0.1803 3538 KGSF #1 04/23/16 SITP 0 2,449 0.8793 2890 0.2023 3287 KGSF #1 05/03/16 SITP 0 2,650 0.8864 3122 0.2000 3522 KGSF #1 06/23/16 SITP 0 2,950 0.9022 3463 0.0551 3838 KGSF #1 07/14/16 SITP 0 2,970 0.9034 3485 0.0196 3858 KGSF #1 08/13/16 SITP 0 3,000 0.9054 3519 0.0074 3887 KGSF #1 10/26/16 SITP 0 2,957 0.9026 3470 -0.0037 3845 KGSF #1 11/25/16 SITP 0 3,057 0.9092 3583 -0.1047 3941 KGSF #1 12/20/16 SITP 0 2,914 0.8999 3422 -0.0440 3802 KGSF #1 01/16/17 SITP 0 3,040 0.9080 3564 -0.1165 3924 KGSF #1 03/12/17 SITP 0 2,810 0.8940 3304 -0.0656 3696 KGSF #1 04/30/17 SITP 0 2,843 0.8958 3341 -0.0119 3730 KGSF #1 05/31/17 SITP 0 2,469 0.8798 2913 0.1795 3311 KGSF #1 06/30/17 SITP 0 2,688 0.8880 3165 0.1111 3564 KGSF #1 07/30/17 SITP 0 2,832 0.8952 3329 0.0473 3719 KGSF #1 08/31/17 SITP 0 2,886 0.8983 3390 0.0005 3774 KGSF #1 09/24/17 SITP 0 2,886 0.8983 3390 -0.0036 3774 KGSF #1 10/26/17 SITP 0 2,811 0.8941 3305 0.0310 3697 KGSF #1 11/12/17 SITP 0 2,802 0.8936 3295 0.0351 3687 KGSF #1 12/19/17 SITP 0 2,801 0.8936 3294 0.0373 3686 Page 3 KGSF#1 12/31/17 ISITP 0 2,781 0.8925 1 3271 0.0462 3665 2018 Injection and Production Cycle KGSF #1 01/14/18 SITP 0 2,760 0.8915 3247 0.0593 3642 KGSF #1 03/08/18 SITP 0 2,395 0.8778 2828 0.2254 3221 KGSF #1 03/18/18 SITP 0 2,389 0.8777 2821 0.2258 3214 KGSF #1 05/03/18 SITP 0 2,223 0.8746 2627 0.3091 3004 KGSF #1 05/19/18 SITP 0 2,230 0.8747 2636 0.3096 3013 KGSF #1 07/27/18 SITP 0 2,263 0.8752 2674 0.3101 3055 KGSF #1 08/31/18 SITP 0 21272 0.8753 2684 0.3104 3067 KGSF #1 11/30/18 SITP 0 2,231 0.8747 2637 0.3272 3014 KGSF #1 12/31/18 SITP 0 2,260 0.8751 2670 0.3257 3051 Page 4 v a) b.0 m CL
