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Home My WebLink About2018 Lookout Oil Pool 2018 Annual Reservoir Review Report, Greater Moose’s Tooth Unit: Lookout Oil Pool Form 10-412 for Lookout Oil Pool Form 10-413 for Lookout Oil Pool Safety Valve System Testing Results for 2018 March 29, 2019 2018 GMTU Reservoir Surveillance Report Table of Contents Lookout Oil Pool Annual Reservoir Review …………………………………….......... 1 Attachment 1: Greater Moose’s Tooth Unit Map …………...…….……….…..…...... 3 Attachment 2: Reservoir Pressure Map at Datum ………...............................….… 4 Attachment 3: 10-412 Pressure Survey Results …………….………….…...…..…… 5 Attachment 4: 10-413 Report of Injection Project ………….…………….…...…...… 6 Attachment 5: Safety Valve System Test Results ……….………….....……….….… 7 2018 GMTU Reservoir Surveillance Report 1 Lookout Oil Pool Annual Reservoir Review ConocoPhillips Alaska, Inc., (CPAI) as Operator and sole working interest owner of the Greater Mooses Tooth Unit (GMTU), submits this Lookout Oil Pool Annual Reservoir Review as required for the Lookout Oil Pool Conservation Order 747, Rule 8. 1: Development Plans and Reservoir Management Summary Lookout Oil Pool production and injection was initiated in October 2018. Lookout development drilling began in March 2018 with six wells completed by year-end 2018. One additional well was drilled in 2019 for a total of seven development wells (three producers and four injectors). No additional Lookout drilling is planned in 2019. Producer MT6-06 was fracture stimulated in March 2019. The ongoing development scheme premises water injection with alternating gas injection for pressure maintenance and improved recovery. Initiation of gas injection is planned for Q2 or Q3 in 2019. Cumulative water injection in 2018 was 737 MBW , equating to less than 1% of the hydrocarbon pore volume of the developed portion of the reservoir. W ater production in 2018 was less than 1% of total liquid production. 2: Reservoir Voidage Balance and Cumulative Status The tables below summarize average daily injection and production rates, cumulative fluid volumes, and voidage balance as of January 1, 2019. Water injection and voidage replacement are low due to injection wells being drilled later in the drilling program. Now that all injectors are drilled, injection is catching up with production and cumulative voidage is decreasing. The following is a summary of the Lookout Oil Pool status as of January 1, 2019. Lookout Oil Pool 2018 Metrics Daily Average Rate (since 10/1/18) Cumulative Volume Oil Production 9.4 MBOPD 0.8 MMSTB Gas Production 18.2 MMSCFD 1.6 BSCF Water Production 0.0 MBWPD 0.0 MMSTB Gas Injection 0.0 MMSCFD 0.0 BSCF Water Injection 8.2 MBWPD 0.7 MMSTB 2018 GMTU Reservoir Surveillance Report 2 Lookout Oil Pool 2018 Voidage Balance Month Cumulative Injection / Withdrawal Ratio RVB/RVB Injection / Withdrawal Rate RVB/RVB January - - February - - March - - April - - May - - June - - July - - August - - September - - October 0.38 0.40 November 0.39 0.40 December 0.39 0.40 3: Summary and Analysis of Reservoir Pressure Surveys Static pressure surveys were performed in six Lookout Oil Pool wells during 2018. Please see Attachment 3 for the 10-412 report of reservoir pressures. The data are in agreement with predictions from the numerical reservoir model, which is regularly updated with field data to guide reservoir management and development activities in the field. 4: Results and Analysis of Production and Injection Log Surveys, Temperature, Tracer Surveys, Observation Well Surveys and Special Monitoring None of these surveys were performed for the Lookout zone in 2018. 5: Review of Production Allocation Factors and Issues Well test and allocation review shows a total of 38 well tests were used to allocate production from the Lookout Oil Pool in 2018. 2018 GMTU Reservoir Surveillance Report 3 Attachment 1: Greater Moose’s Tooth Unit Map 2018 GMTU Reservoir Surveillance Report 4 Attachment 2: Reservoir Pressures at Datum Lookout Oil Pool 2018 GMTU Reservoir Surveillance Report 5 Attachment 3: 10-412 Pressure Survey Results by Pool - LOOKOUT 2018 GMTU Reservoir Surveillance Report 6 Attachment 4: 10-413 Report of Injection Project by Pool - LOOKOUT 2018 GMTU Reservoir Surveillance Report 7 DATE_TESTLPSWELL_TYPEWELL_NUMBERPERMIT_NUMBERSEPAR_PSISET_PSIL_P_TRIPLPP_TEST_CODESSV_TEST_CODESSSV_TEST_CODETEST_TYPERETEST_SI_DATEFIELD_UNIT_PADAOGCC_REP11/30/18156OILMT6-06218093015610098PPMALPINE / GMTU / MT6 MISCWAIVED10/09/18290OILMT6-052180450290500448PPNAMALPINE / GMTU / MT6 MISCWaived10/09/18290OILMT6-032180160290500492PPNAMALPINE / GMTU / MT6 MISCWaivedAttachment 5: Safety Valve System Test Results - 2018