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Review of Ray-born Forward Modeling for Migration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010, Jun 2010, cp-161-00241
- ISBN: 978-90-73781-86-3
Abstract
The ray-Born approximation is a very useful tool for forward modeling of scattered waves. The fact that ray-Born modeling underlies most seismic migration techniques, and therefore shares their assumptions, is a justification in itself to consider it for forward modeling. The ray-Born approximation does not make an explicit distinction between specular reflections and non-specular diffractions. It therefore allows to model diffractions from structural discontinuities such as edges and tips, as well as caustic diffractions. In its simpest implementation ray-Born seismograms are multiple-free. It can be orders of magnitude faster than finite-difference modeling, both in two- and three dimensions.