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Some practical approaches to world petroleum resource assessment

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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 estim ted 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.

Additional publication details

Publication type Book chapter
Publication Subtype Book Chapter
Title Some practical approaches to world petroleum resource assessment
Series number 21
ISBN 978-0891810278
Year Published 1986
Language English
Publisher American Association of Petroleum Geologists
Contributing office(s) Eastern Energy Resources Science Center
Description 9 p.
First page 185
Last page 193