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Frequency-dependent AVO attribute: theory and example

Wu, Xiaoyang; Chapman, Mark; Li, Xiang-Yang. 2012 Frequency-dependent AVO attribute: theory and example. First Break, 30. 63-68.

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Abstract/Summary

Fluid-saturated rocks generally have seismic velocities that depend upon frequency. Exploring this property may help us discriminate different fluids from seismic data. In this paper, we introduce a scheme to calculate a frequency-dependent AVO attribute in order to estimate seismic dispersion from pre-stack data, and apply it to North Sea data. The scheme essentially combines the two-term approximation of Smith and Gidlow (1987) with the method of spectral decomposition based on the Wigner-Ville distribution, which is used to achieve high resolution. The result suggests the potential of this method for detection of seismic dispersion due to fluid saturation.

Item Type: Publication - Article
Programmes: BGS Programmes 2010 > Earth hazards and systems
Date made live: 21 Jan 2013 15:30 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/21235

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