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Technical Abstract

Inverting Near-Surface Absorption Bodies with FullWaveform Inversion: a Case Study from the North Viking Graben in the Northern North Sea

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This work highlights visco-acoustic full-waveform inversion (Q-FWI) as a method for estimating high-resolution velocity and attenuation models. We present a very large, real data, case study where Q-FWI has been applied to ~36,000 km2 of 3D, narrow azimuth, variable-depth streamer data over the North Viking Graben region of the northern North Sea. The results show that Q-FWI can invert for both velocity and attenuation with a high degree of spatial and vertical resolution. Our visco-acoustic FWI results, in comparison to those from conventional acoustic FWI, are supported by superior imaging in an attenuation compensating pre-stack depth migration.
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Publications

EAGE - European Association of Geoscientists and Engineers

Authors

B. Xiao (CGG), A. Ratcliffe (CGG), T. Latter (CGG), Y. Xie (CGG), M. Wang (CGG)

Month

June

Copyright

© 2018 EAGE