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Technical Abstract

Joint PP-PS inversion without prior data registration

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Standard joint AVO inversion of PP and PS seismic data rely on a registration process beforehand to align PP and PS data in a common time domain. This is a difficult step prone to error that may deteriorate the inversion results. We present a new method to jointly invert PP and PS data without prior registration by integrating the travel times as well as the amplitudes in a model-based inversion. Including the travel times brings extra constraints on the VP/VS ratio and therefore helps the inversion converge. This new method is demonstrated on a shale gas data example and shows better results than PP inversion and standard joint inversion.
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Publications

EAGE - European Association of Geoscientists and Engineers

Authors

Benjamin Roure, Vimol Souvannavong, Jean-philippe Coulon, Dan Hampson

Month

June

Copyright

© 2015 EAGE