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Wave Extrapolation with Locally Parabolic Rays
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 68th EAGE Conference and Exhibition incorporating SPE EUROPEC 2006, Jun 2006, cp-2-00159
- ISBN: 978-90-73781-00-9
Abstract
We propose a phase-shift extrapolation operators extending the straight-ray approximation to locally parabolic rays for depth variations of slowness and also for lateral deviations. This construction leads to second-order accurate wave-propagations operators. Its improvement is verified by numerical experiments, where the synthetic test demonstrate that the proposed method corrects straight ray approximations.