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2D and 3D ZO CRS Stack for a Complex Top-Surface Topography
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 64th EAGE Conference & Exhibition, May 2002, cp-5-00135
Abstract
P166 2D AND 3D ZO CRS STACK FOR A COMPLEX TOP- SURFACE TOPOGRAPHY Y. ZHANG 1 2 G. HÖCHT 1 and P. HUBRAL 1 1 1 Geophysical Institute University of Karlsruhe Hertzstr 16 76187 Karlsruhe Germany Introduction. It is the purpose of this work to handle free surface topography in the frame of the common-reflection-surface (CRS) stack. Using the well-established results by Červený (2001) we derive traveltime formulas for rays in the vicinity of any zero-offset (ZO) central ray in an isotropic inhomogeneous medium. The new formulas can be used to simulate ZO sections from prestack multi-coverage data in a