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Home My WebLink About2014 Swanson KGSFHilcorp Alaska, LLC July 28, 2014 JUL 2 9 2014 Mrs. Cathy Foerster, Chair Alaska Oil and Gas Conservation Commission OGCc 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: 2014 Annual Material Balance Calculations of Production and Iniection Volumes: Kenai Gas Storage Facility #1 (KGSF#1), Swanson River Field Dear Commissioner Foerster: Attached for Alaska Oil and Gas Conservation Commission (AOGCC) review is the 2014 annual material balance calculation of production and injection volumes for the Kenai Gas Storage Facility #1 (KGSF#1), 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 June 30, 2014. 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 2013-2014 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 peaking requirements during the winter season. If you or your staff has any questions regarding this annual report, please contact me at 777- 8441. Sincerely, Jason Ewing 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 Te Gauge 3306 0.0000 Datum 07/27/99 SITP Wellname Date Test Type Duration Measured Pressure at Factor Pressure, Cum Gas, bcf P/Z, Psia 0.8954 1100 1.0690 (hrs) Test Depth Test 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 0.8666 3039 0.1900 3507 07/26/02 ISITP 1 0.8518 0 2630 0.8671 3050 0.2000 3518 2002/2003 Production Cycle 12/05/02 ISITP 65 0 1415 0.8643 1641 0.7400 1899 07/25/03 ISITP 0 1 224 1 0.9719 1 260 1 1.2520 1268 2003 Injection Cycle 12/29/03 ISITP 19 0 2440 0.8596 1 2829 0.2540 3291 2003/2004 Production Cycle 04/28/04 ISITP 24 1 0 1 2075 1 0.8518 1 2406 1 0.4450 2825 2004 Injection Cycle 07/14/04 ISITP 12 0 1 2565 1 0.8643 1 2974 1 0.1530 3441 12/05/04 ISITP 96 1 0 1 2865 1 0.8788 1 3322 1 -0.0820 3780 2004/2005 Production Cycle 06/08/05 ISITP 1 6 1 0 2080 1 0.8518 1 2412 0.3960 1 2832 2005 Injection Cycle 08/08/05 SITP 1 0 2828 0.8768 3279 0.0220 3740 12/30/05 SITP 72 0 2786 0.8746 3231 -0.0440 3694 2005/2006 Production Cycle 03/22/06 ISITP 1 24 1 0 1 1905 1 0.8515 1 2209 1 0.4208 1 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 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 2604 0.8654 1 3005 0.0284 3473