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Velocity analysis for prestack depth migration: Examples using synthetic and real subsalt data
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE/SEG Research Workshop 1990, Jul 1990, cp-53-00013
- ISBN: 978-94-6282-136-1
Abstract
In seismic prospecting under salt, poststack depth migration often provides unsatisfactory results. A common contributor to the problem is the occurrence of large lateral velocity variation associated with salt (high velocity) of nonuniform thickness encased in sediments (lower velocity).