Phillips Petroleum Co. has an active drilling program in northern Cook Inlet 35 miles west of Anchorage, including delineation of an oil field of undetermined size.
The company has spudded 2 Sunfish to evaluate oil possibilities in the Tyonek, Hemlock, and West Foreland formations at 13,000-19,000 ft measured depth, Petroleum Information reported.
Phillips is drilling the well from its Tyonek platform, built in 1968 to develop North Cook Inlet gas field. Phillips said it might drill another well in March 1993.
Bottomhole location at the 2 Sunfish is to be 1 1/2 miles north-northwest of ARCO Alaska Inc.'s 1 Sunfish, a 1991 discovery.
The discovery well flowed at rates of 1,100 b/d of oil and 1 MMcfd of gas through a 12/64 in. choke with 1,100 psi flowing tubing pressure presumably from Tyonek at 12,160 ft, PI noted.
A plan Phillips filed with the state said the company has the capability of drilling 12 oil wells from the Tyonek platform. Depending on results of the 2 Sunfish well the 12 wells could be drilled from 1992 through March 1995 at a rate of one well about every 75 days, the company said.
Meanwhile, cumulative production from North Cook Inlet gas field surpassed 1 tcf in September 1992, with 11 of the 12 wells drilled on production during the month, PI noted.
The field and platform supply gas to the Phillips-Marathon Oil Co. Kenai natural gas liquefaction plant at Nikiski. LNG is shipped to the Far East under long term contract.
Copyright 1992 Oil & Gas Journal. All Rights Reserved.
