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Home My WebLink About2021 Kuparuk Undefined Pool Greater Kuparuk Area 2021 Undefined Pool Report Ugnu Formation Reporting Period January 1 to December 31, 2021 Page left blank intentionally. Carlotta Chernoff Manager, GKA Asset Development Greater Kuparuk Area ConocoPhillips Alaska, Inc. ATO-1376 PO Box 100360 Anchorage AK 99510-0360 Phone (907) 263-4692 Ms. Jessie Chmielowski, Commissioner Alaska Oil and Gas Conservation Commission 333 West 7th Ave. Suite 100 Anchorage, Alaska 99501 Re: 2021 Undefined Oil Pool Reservoir Report Dear Commissioner Chmielowski, In compliance with Title 20 AAC 25.517, ConocoPhillips Alaska, Inc., operator of the Kuparuk River Unit, is hereby submitting the Plans of reservoir development and operation for Undefined Oil Pools. This report documents the required information pertinent to the field development and enhanced recovery operations from January through December 2021. The following is an outline of the information provided: • Ugnu Formation – 2021 Report Operations Review (Attachment 1) If you have any questions concerning this data, please contact Jerissa Hampton at (907) 263-3701. Sincerely, Carlotta Chernoff Manager, GKA Asset Development Greater Kuparuk Area March 9, 2022 Page left blank intentionally. Attachment 1 Ugnu Formation 2021 Report Operations Review UGNU PILOTS/ STUDIES The Kuparuk River Unit working interest owners re‐started the Ugnu Heavy Oil pilot and established stabilized oil flow from well 1H‐401 during December 2013. A down hole heater was used to lower the oil viscosity sufficiently to allow viscous oil to flow via a progressive cavity pump installed in the well. The well was online for approximately 10 cumulative months until it was shut in March 2016 due to a failed pump. In 2017 and 2018, elastomer studies were completed to redesign a downhole pump more appropr iate for the fluid chemistry and downhole conditions. A new pump design was installed in April 2019. The well was online for two weeks before the motor failed. Evaluating rig workover alternatives to bring the well back on production. No development wells were drilled in 2021. One well is planned in Q4 2022, 1C-501, to serve as a clean-water source well for planned West Sak injectors on drillsite 1C. GKA Annual Surveillance Report Undefined Oil Pool 5 Page left blank intentionally.