McArthur River Field - a Cook Inlet giant

Conference · Mon Apr 01 04:00:00 EST 1985 · Am. Assoc. Pet. Geol., Bull.; (United States)

OSTI ID:5961706

Stickney, R B; Warthen, R C

The eighth major discovery in Cook Inlet basin was announced on October 24, 1965, as a result of drilling the Union-operated Grayling 1-A well near the crest of a broad, low-relief anticline that had been mapped from seismic data as early as 1959. The prolific Hemlock Conglomerate was tested at rates exceeding 2000 BOPD. As delineation wells confirmed the size of the accumulation, three separate platforms were ordered and were in place by July 1967, and within three months, production from the Hemlock had begun. Additional oil-productive sands in the Tyonek Formation, immediately overlying the Hemlock as well as several more in the underlying West Foreland, Formation, were placed on production in September 1969. Significant reserves in shallower Tyonek Formation sandstone have only been used so far for platform power and gas lift. Development plans are currently being formulated for these reservoirs in response to the recent increasing demands for gas in Cook Inlet.

• Research Organization: Union Oil Co., Anchorage, AK
• OSTI ID: 5961706
• Report Number(s): CONF-8505215-
• Conference Information: Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 69:4
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
ALASKA
ANTICLINES
CONGLOMERATES
FEDERAL REGION X
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC STRUCTURES
GEOLOGY
MINERAL RESOURCES
NORTH AMERICA
OIL FIELDS
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
ROCKS
SEDIMENTARY ROCKS
USA