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Book Chapter

10: Expert Systems and Their Application to Analysis of Sedimentary Basins

By
Betty M. Miller
Betty M. Miller
U.S. Geological Survey, Reston, VA. 22092
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Published:
January 01, 1991

Abstract

An overview of current developments in the application of expert systems to the geologic analysis of sedimentary basins is presented. Techniques are adapted from the field of Artificial Intelligence (AI) and are interfaced with computer mapping techniques using knowledge-based Geographic Information Systems (GIS).

The concepts and methods for analyzing sedimentary basins in petroleum exploration have changed from fairly simplistic, geologic studies, which employed primarily qualitative and semiquantitative techniques, to studies of ever increasing complexity, which employ quantitative evaluations of total basin systems within a three-dimensional (3-D) framework. Enormous amounts of multivariate spatial data are necessary to quantify the geologic, geophysical, geochemical, and hydrologic processes within complex sedimentary basins.

Such an integrated analysis for a sedimentary basin is difficult to achieve without computer assistance. New applications of artificial intelligence and expert systems techniques can, however, be interfaced with knowledge-based GIS to provide the tools needed to define new strategies and technologies for conducting and automating the complex tasks required for geologic studies of sedimentary basins and particularly for 3-D basin analysis.

Research efforts in the U.S. Geological Survey are currently being directed at exploring the feasibility of applying expert systems and knowledge acquisition techniques to the design and construction of a global system of sedimentary basin classification and at the geologic analysis of sedimentary basins to assess their petroleum potential. The primary objective is to design a prototype expert system and a knowledge-based GIS that capture both the logic used to define the geologic concepts and the reasoning that enables the geologist to understand and reconstruct the geologic evolution of a sedimentary basin. The system provides these capabilities through documentation of its major components, as expressed, for example, by its stratigraphy, structural geology, and sedimentology. This expert system is designed to analyze the traditional concepts of source, reservoir, and trapping mechanism; to aid in the diagnosis of geologic conditions favorable for the occurrence of petroleum or other energy resources; and, ultimately, to assess these resources.

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Contents

Geophysical Developments Series

Expert Systems in Exploration

Fred Aminzadeh
Fred Aminzadeh
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Marwan Simaan
Marwan Simaan
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Society of Exploration Geophysicists
Volume
3
ISBN electronic:
9781560802532
Publication date:
January 01, 1991

GeoRef

References

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