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Permo-Triassic Reservoirs of Prudhoe Bay Field, North Slope, Alaska1

By
H. P. Jones
H. P. Jones
BP Alaska Inc., San Francisco, California 94111.
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R. G. Speers
R. G. Speers
Oil Service Company of Iran (Ahwaz), P. O. Box 1095, Teheran, Iran.
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Published:
January 01, 1976

Abstract

Production from the Prudhoe Bay field, which contains the largest single accumulation of oil ever discovered in North America, is expected to commence in 1977. Recent approval of the construction of an oil pipeline from Prudhoe Bay to Valdez has resulted in a marked increase in both drilling and construction activity in the field area. Already over 100 wells have been drilled as a result of almost 7 years of operation, and considerable subsurface data on the Permo-Triassic formations are now available. On the basis of these data, this paper describes geological and petrophysical aspects of the main Prudhoe Bay reservoirs.

Three reservoirs are contained within the Permo-Triassic. These are, in descending order, the Sag River Formation, the Shublik Formation, and the Ivishak Sandstone. The Ivishak Sandstone reservoir of the Sadlerochit Group contains most of the field's hydrocarbons.

Observations of the distribution of gas, oil, and water in the field have led to hypotheses regarding the origin and distribution of the hydrocarbons.

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Contents

AAPG Memoir

North American Oil and Gas Fields

Jules Braunstein
Jules Braunstein
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American Association of Petroleum Geologists
Volume
24
ISBN electronic:
9781629812106
Publication date:
January 01, 1976

GeoRef

References

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