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Interactive Seismic Imaging by Fast Beam Migration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 69th EAGE Conference and Exhibition incorporating SPE EUROPEC 2007, Jun 2007, cp-27-00100
- ISBN: 978-90-73781-54-2
Abstract
C017 Interactive Seismic Imaging by Fast Beam Migration F. Gao* (CGGVeritas) P. Zhang (CGGVeritas) B. Wang (CGGVeritas) G. Thomas-Collignon (CGGVeritas) & V. Dirks (CGGVeritas) SUMMARY This paper presents a Fast Beam migration algorithm which has been specifically designed to facilitate very rapid migration turnarounds to allow for interactive velocity model building and validation. The very fast imaging turnaround is achieved by only migrating pre-picked events in a wavelet by wavelet fashion. Coherent noise and migration artifacts are reduced compared to classical Kirchhoff migration techniques by using a sophisticated event selection scheme during the event picking phase and by subsequent multi-path