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A New True-amplitude Imaging Condition for Shot-profile Migration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010, Jun 2010, cp-161-00577
- ISBN: 978-90-73781-86-3
Abstract
We derive a new, stable, true-amplitude cross-correlation type imaging condition for shot-profile migration by changing the source of the downgoing wavefield. Essentially this modification deconvolves the spatial response of the seismic point source and restores the amplitudes in the final image. Numerical examples demonstrate that the resulting common-angle gathers give the correct amplitude-versus-angle behaviour for a simple model.