Application of multi-source waveform inversion to marine streamer data using the global correlation norm
Type
ArticleKAUST Department
Earth Science and Engineering ProgramEnvironmental Science and Engineering Program
Physical Science and Engineering (PSE) Division
Seismic Wave Analysis Group
Date
2012-05-02Online Publication Date
2012-05-02Print Publication Date
2012-07Permanent link to this record
http://hdl.handle.net/10754/562178
Metadata
Show full item recordAbstract
Conventional multi-source waveform inversion using an objective function based on the least-square misfit cannot be applied to marine streamer acquisition data because of inconsistent acquisition geometries between observed and modelled data. To apply the multi-source waveform inversion to marine streamer data, we use the global correlation between observed and modelled data as an alternative objective function. The new residual seismogram derived from the global correlation norm attenuates modelled data not supported by the configuration of observed data and thus, can be applied to multi-source waveform inversion of marine streamer data. We also show that the global correlation norm is theoretically the same as the least-square norm of the normalized wavefield. To efficiently calculate the gradient, our method employs a back-propagation algorithm similar to reverse-time migration based on the adjoint-state of the wave equation. In numerical examples, the multi-source waveform inversion using the global correlation norm results in better inversion results for marine streamer acquisition data than the conventional approach. © 2012 European Association of Geoscientists & Engineers.Citation
Choi, Y., & Alkhalifah, T. (2012). Application of multi-source waveform inversion to marine streamer data using the global correlation norm. Geophysical Prospecting, 60(4), 748–758. doi:10.1111/j.1365-2478.2012.01079.xSponsors
We are grateful to King Abdullah University of Science and Technology for financial support. We also thank the associate editor and the reviewers for their fruitful and helpful review of the paper.Publisher
WileyJournal
Geophysical Prospectingae974a485f413a2113503eed53cd6c53
10.1111/j.1365-2478.2012.01079.x