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Geology and Development History of Swanson River Field, Cook Inlet, Alaska

By
Kevin R. Eastham
Kevin R. Eastham
Formerly with Chevron Alaska Hilcorp Alaska LLC, 3800 Centerpoint Dr., Suite 100, Anchorage, Alaska, 99503 U.S.A. (e-mail: keastham@hilcorp.com)
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Published:
January 01, 2014

Abstract

The Swanson River oil field was discovered in 1957 by Richfield Oil Corporation with the drilling of the Swanson River Unit No. 1 well. The timing and significance of this discovery sparked an Alaskan industry and demonstrated the territory’sability to develop its own mineral resources and helped pave the way to Alaskan statehood in 1959. Development of the Swanson River field has progressed through a number of stages. The initial development phase of Hemlock oil (1957-1962) was supplemented by a gas pressure maintenance program from 1962 to 1998. Peak production of 38,000 BOPD was reached in 1966 with the onset of full-field compression, and current field production is 600 BOPD and 2.5 MMCFD of natural gas from 21 active wells. Along with continued delineation of Miocene-aged gas reservoirs, development of lower Tyonek G-Zone oil and production of Hemlock blowdown gas began in the mid-1990s and continues through the present. In 2001, gas storage operations were implemented along with ongoing oil and gas production, allowing Swanson River to continue playing a significant role in meeting the increasing demand for gas in the Cook Inlet area.

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Contents

AAPG Memoir

Oil and Gas Fields of the Cook Inlet Basin, Alaska

Denise M. Stone
Denise M. Stone
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David M. Hite
David M. Hite
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American Association of Petroleum Geologists
Volume
104
ISBN electronic:
9781629812687
Publication date:
January 01, 2014

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