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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes

Abstract

DOI:10.1306/13301404M963458

Uncertainty Analysis in Reservoir Characterization and Management: How Much Should We Know About What We Don't Know?

Y. Zee Ma1

1Schlumberger, Greenwood Village, Colorado, U.S.A.

ACKNOWLEDGEMENTS

The author thanks Schlumberger Ltd. for permission to publish this work and the reviewers for the useful suggestions.

ABSTRACT

A reservoir is the result of geologic processes and is not randomly generated. However, many uncertainties exist in reservoir characterization because of subsurface complexity and limited data. Uncertainties can be mitigated by gaining more information and/or using better science and technology. How much uncertainties should be mitigated depends on the needs of decision analysis for reservoir management and the cost of information. Uncertainty analysis should be conducted for investigational analyses and for decision analysis under uncertainty and risk. To know what needs to be known and what can be known should be the main focal points of uncertainty analysis in reservoir characterization and management.

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