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Elastic seismic envelope inversion
JINGRUI LUO1,2 ,
RU-SHAN WU2 ,
JINGHUAI GAO3
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2
Modeling and Imaging Laboratory, Earth & Planetary Sciences, Univ. of California, Santa Cruz, CA 95064, U.S.A.,
JSE 2016, 25(2), 103–119;
Submitted: 20 May 2015 | Accepted: 5 November 2015 | Published: 1 April 2016
© 2016 by the Authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution -Noncommercial 4.0 International License (CC-by the license) ( https://creativecommons.org/licenses/by-nc/4.0/ )
Abstract
Luo, J., Wu, R.-S. and Gao, J., 2016. Elastic seismic envelope inversion. Journal of Seismic Exploration, 25: 103-119. We propose the elastic seismic envelope inversion method, which is an extension of our previous work about the acoustic situation. Seismic full waveform inversion suffers severely from the local minima problem, which comes from the lack of low frequency information in the data. The envelope of the data carries ultra low frequency information and thus can be used to construct the large scale component of the model. We give the method of envelope inversion for the elastic situation where P-wave velocity and S-wave velocity are inverted simultaneously. Numerical examples using the Marmousi II model proved that the combined elastic envelope inversion plus waveform inversion (EI+WI) provides much better results than the conventional elastic full waveform inversion, especially for the case of lacking low frequency information in the seismic data.
Keywords
full waveform inversion
envelope inversion
elastic
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