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Book Chapter

Using P-Wave Data to Distinguish Gas from Water in Fractures

By
Colin MacBeth
Colin MacBeth
Department of Petroleum Engineering, Heriot-Watt University, Edinburgh, UK
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Published:
January 01, 2001

Abstract

A technique is developed for distinguishing between gas and water-filled fractures using P-wave data. The method relies upon combining the azimuthal AVO signature for a fractured reservoir with its interval moveout time. A cross-plot of these attributes provides a robust and simple indicator, irrespective of the offset and azimuth distribution at the bin location. The technique is applicable to reservoirs whose production is assisted by the presence of natural fractures, where saturation maps can help to better quantify and assess pathways for flow.

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Contents

Society of Exploration Geophysicists Open File

Anisotropy 2000: Fractures, Converted Waves, and Case Studies

L. Ikelle
L. Ikelle
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A. Gangi
A. Gangi
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Society of Exploration Geophysicists
Volume
6
ISBN electronic:
9781560801771
Publication date:
January 01, 2001

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