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Well Test Imaging—A New Method for Determination of Boundaries from Well Test Data

By
Bruce A. Slevinsky
Bruce A. Slevinsky
Petro-CanadaCalgary, Alberta, Canada
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Published:
January 01, 1999

Abstract

A new method has been developed for analysis of well test data that allows the direct calculation of the location of arbitrary reservoir boundaries detected during a well test. The method is based on elements of ray tracing and information theory, and is centered on the calculation of an instantaneous “angle of view” of the reservoir boundaries. In the absence of other information, the relative reservoir shape and boundary distances are retriev-able in the form of a diagnostic image. If other reservoir information, such as 3-D seismic, is available, the full shape and orientation of arbitrary (non-straight-line or circular arc) boundaries can be determined in the form of a reservoir image. The well test imaging method can be used to greatly enhance the information available from well tests and other geological data, and provides a method to integrate data from multiple disciplines to improve reservoir characterization. This paper covers the derivation of the analytical technique of well test imaging and shows examples of application of the technique to a number of reservoirs.

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Contents

AAPG Memoir

Reservoir Characterization—Recent Advances

Richard A. Schatzinger
Richard A. Schatzinger
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John F. Jordan
John F. Jordan
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American Association of Petroleum Geologists
Volume
71
ISBN electronic:
9781629810720
Publication date:
January 01, 1999

GeoRef

References

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