Geologic report for the St. George Basin planning area, Bering Sea, Alaska. Final report

Technical Report · Mon Jun 01 04:00:00 EDT 1987

OSTI ID:6107430

Comer, C D; Herman, B M; Zerwick, S A

The St. George Basin Planning Area is in the Bering Sea off the southwestern coast of Alaska. Two major depocenters, the St. George graben and the Pribilof basin, occur on the continental shelf within the planning area. The St. George graben is 10 to 25 miles wide, extends for over 200 miles, and contains as much as 40,000 feet of Cenozoic strata. The Pribilof basin is a half graben 30 miles wide, extends for about 70 miles, and contains as much as 20,000 feet of Cenozoic strata. Two Continental Offshore Stratigraphic Test (COST) wells and nine exploratory wells, all plugged and abandoned, have been drilled in the area. The COST well data indicate fair to good reservoir-rock potential in Oligocene sandstones; potential source rocks appear to be organically lean, gas-prone, and thermally immature.

• Research Organization: Minerals Management Service, Anchorage, AK (USA). Alaska Outer Continental Shelf Region
• OSTI ID: 6107430
• Report Number(s): PB-87-218715/XAB; OCS/MMS-87/0030
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
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03 NATURAL GAS
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ALASKA
BERING SEA
CONTINENTAL MARGIN
CONTINENTAL SHELF
EXPLORATORY WELLS
FEDERAL REGION X
GEOLOGIC DEPOSITS
GEOLOGY
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NORTH AMERICA
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PETROLEUM GEOLOGY
RESOURCES
ROCKS
SANDSTONES
SEAS
SEDIMENTARY ROCKS
STRATIGRAPHY
SURFACE WATERS
USA
WELLS