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Book Chapter

Construction and Analysis of Three-Dimensional Seismic Porosity Inversion Models

By
Hongliu Zeng
Hongliu Zeng
Bureau of Economic Geology, The University of Texas at Austin, Austin, Texas, U.S.A.
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Published:
January 01, 2012

Abstract

Geology-guided reconditioning of seismic data is the key to improving extraction of relevant geologic information from three-dimensional (3-D) data volumes. In the Fullerton Clear Fork reservoir, the most convenient and useful tools for data reconditioning are phase shifting and high-frequency enhancement. A simple seismic phase rotation (to 90°) reconditions seismic data for impedance representation, roughly linking seismic amplitude directly to log lithology and porosity and making stratigraphic correlation more accurate. High-frequency enhancement raises the dominant frequency of 3-D seismic data from 30 to 50 Hz, improving seismic resolution without significantly deteriorating signal-to-noise ratio. More accurate and finer scale seismic mapping of reservoir parameters is achieved from model-based progressive inversion that seamlessly integrates geologic interpretation of well-derived seismic data and model-based seismic inversion for high-resolution (2 ft [0.6 m]) impedance models.

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Contents

Studies in Geology

Anatomy of a Giant Carbonate Reservoir: Fullerton Clear Fork (Lower Permian) Field, Permian Basin, Texas

Stephen C. Ruppel
Stephen C. Ruppel
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American Association of Petroleum Geologists
Volume
63
ISBN electronic:
9781629810133
Publication date:
January 01, 2012

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