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CINGSA has drilled two additional wells
Completion and perforation of the injection/withdrawal wells planned for this year; subject to availability of coil tubing unit Kristen Nelson Petroleum News
Cook Inlet Natural Gas Storage Alaska said in its 2025 plan of development, submitted Jan. 31, that the two new wells at the Cannery Loop unit underground gas storage reservoir and facility were drilled September through December last year, but have not been perforated and completed.
In the POD, submitted to the Alaska Department of Natural Resources' Division of Oil and Gas, Matt Federle, CINGSA director of gas storage plant, said the perforation and completion work hasn't yet been done because there isn't a coil tubing unit available.
CLU Storage 7 was spud Sept. 11 and suspended Nov. 11.
CLU Storage 6 was spud Nov. 20 and suspended Dec. 24. Nordic Calista Rig 37 was demobilized after that well was completed.
Federle said the two wells "will be completed in 2025 when the local coil tube becomes available, or from outside sources in the event that coil tube services are not available locally."
The five original wells at CINGSA, CLU Storage 1 through 5, were drilled in 2011 using Nabors 105.
CINGSA background CINGSA holds storage lease ADL 391627, which is within the Sterling C gas pool. The wells were drilled from a gravel pad on property owned by the state and leased to CINGSA. The compressor station facilities are on property purchased by CINGSA.
2024 was the 13th calendar year of CINGSA operation, Federle said in the POD.
CINGSA converted the nearly depleted Sterling C1 and C2 sands at the Cannery Loop unit into an underground gas storage reservoir and facility. Hilcorp Alaska retains working interest ownership in the deeper Beluga and Upper Tyonek gas pools, both in production, as well as any zones above the Sterling C.
The Sterling C gas pool produced some 23 billion cubic feet of gas and some 4,000 barrels of produced water prior to shut-in in 2012 and was estimated to have originally held 26.5 bcf of gas; production was from a single well.
The company said storage injections by free flow of gas began April 1, 2012, followed by injection with compression April 28, 2012.
The storage lease originally enabled CINGSA to develop and operate the storage reservoir with a maximum storage volume of 18 bcf, 11 bcf of working gas and 7 bcf of base, an amount updated to 20 bcf in December 2024 to include 13 bcf of working gas and 7 bcf of base gas.
POD activities Activities under the 2024 POD included normal maintenance and operations; expansion of the compressor building to accommodate two additional compressor skids and associated equipment; drilling of the two new wells and installation of surface piping; beginning installation of additional DEHY purification train on the plant side; expansion of plant pad to accommodate building and traffic on the east side of the compressor building; and expansion of the plant pad by the warehouse to ease access and accommodate traffic to the lay down area.
2024 injection was 5,585,904 thousand cubic feet, mcf, and withdrawal of 5,453,126 mcf.
Proposed 2025 activities include: normal maintenance and operations; completion and testing of the two new wells; and commissioning the purification system and warehouse expansion.
--KRISTEN NELSON
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