1887

Abstract

Horizontal transverse isotropy (HTI) is the simplest model for azimuthal anisotropy analysis and is widely used in parameter estimation. It implies a number of significant simplifications and assumptions. The reliability of parameter estimation depends to a large extent on the acquisition geometry. We have performed ellipse fitting on the normal move-out velocities of synthetic data for a simple HTI model. For a narrow-azimuth acquisition geometry the estimated anisotropy parameters are not representative of the subsurface even though they could be used to improve the stack response. For full-azimuth data the NMO ellipse can be reconstructed in a reliable way providing accurate estimates of the HTI parameters, even in the presence of considerable noise.

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/content/papers/10.3997/2214-4609.20147721
2008-06-09
2020-07-07
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20147721
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