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Wiley InterScience | ||||||||||||||
  Geophysical ProspectingVolume 53 Issue 1, Pages 1 - 12 Published Online: 23 Dec 2004 © 2010 European Association of Geoscientists & Engineers Published on behalf of the European Association of Geoscientists & Engineers
Abstract | References | Full Text: HTML, PDF (Size: 445K) | Related Articles | Citation Tracking  Residual dip moveout in VTI media Copyright 2005 European Association of Geoscientists & Engineers ABSTRACT
Dip-moveout (DMO) correction is often applied to common-offset sections of seismic data using a homogeneous isotropic medium assumption, which results in a fast execution. Velocity-residual DMO is developed to correct for the medium-treatment limitation of the fast DMO. For reasonable-sized velocity perturbations, the residual DMO operator is small, and thus is an efficient means of applying a conventional Kirchhoff approach. However, the shape of the residual DMO operator is complicated and may form caustics. We use the Fourier domain for the operator development part of the residual DMO, while performing the convolution with common-offset data in the space–time domain. Since the application is based on an integral (Kirchhoff) method, this residual DMO preserves all the flexibility features of an integral DMO. An application to synthetic and real data demonstrates effectiveness of the velocity-residual DMO in data processing and velocity analysis. Received September 2000, revision accepted May 2004 | 
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