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7 - Pressure and Stress from Seismic Velocity

Published online by Cambridge University Press:  04 March 2021

Peter B. Flemings
Affiliation:
University of Texas, Austin
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Summary

Seismic velocities are derived from multichannel seismic reflection data. These velocities provide a two- and three-dimensional image of the subsurface but are of lower resolution than the log-based approaches discussed in Chapters 5 and 6. Seismic velocities are often the first information available to predict pressure in frontier basins. I discuss how to invert velocity from seismic data and some of the challenges therein. Once the seismic velocities are derived from the seismic data set, the approaches to predict pressure are identical to the techniques presented in Chapters 5 and 6. I then present two examples of how to predict pressure with the vertical effective stress method. I close with a discussion of how to predict pressure where complex stress states are present with an approach called the full effective stress method. Several recent review papers summarize the approach of pressure prediction from seismic velocity (Chopra & Huffman, 2006; Dutta, 2002b; Sayers et al., 2002).

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Chapter
Information
A Concise Guide to Geopressure
Origin, Prediction, and Applications
, pp. 142 - 166
Publisher: Cambridge University Press
Print publication year: 2021

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