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Source-independent Elastic Least-squares Reverse Time Migration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 80th EAGE Conference and Exhibition 2018, Jun 2018, Volume 2018, p.1 - 5
Abstract
Summary
Some seismic data processing methods, including migration and full waveform inversion, need a known source signature before the processing is conducted. But it is difficult to obtain an accurate wavelet for practical seismic data. In this paper, we present a method for trying to decrease the side-effect on migration image resulted by an incorrect wavelet. We use a convolution-based objective to accomplish source-independent elastic LSRTM. Numerical examples show that our method has the ability to recover the reflectivity model with incorrect source wavelet.
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