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Book Chapter

Some Practical Approaches to World Petroleum Resource Assessment

By
David H. Root
David H. Root
US. Geological Survey Reston, Virginia
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Emil D. Attanasi
Emil D. Attanasi
US. Geological Survey Reston, Virginia
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Charles D. Masters
Charles D. Masters
US. Geological Survey Reston, Virginia
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Published:
January 01, 1986

Abstract

Uncertainty in petroleum resource estimation can be mitigated by using different approaches in making resource estimates for a given area. We divide methods and data into two broad categories. The first is based on geologic data, which aim at estimating the resources of a basin by gaining an understanding of the processes of petroleum formation, migration, and trapping. The second is based on statistical methods, which estimate the resources of a basin by extrapolating the industry’s past experience in drilling and discovery to forecast future discoveries. Results of these approaches are compared for Nigeria, North Africa, and many of the world’s offshore areas. Undiscovered offshore petroleum resources outside the United States, Canada, and communist countries were estimated by both methods to be ~ 130 billion bbl. For Nigeria the two methods agree at about 4-6 billion bbl of undiscovered oil. In contrast, for North Africa, where the geologic estimate of undiscovered petroleum is 16 billion bbl and the statistical estimate is 5 billion bbl, the two methods are not in close agreement.

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Contents

AAPG Studies in Geology

Oil and Gas Assessment: Methods and Applications

Dudley D. Rice
Dudley D. Rice
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American Association of Petroleum Geologists
Volume
21
ISBN electronic:
9781629811468
Publication date:
January 01, 1986

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