Multi-stage full waveform inversion strategy for 2D elastic VTI media

Juwon Oh, Tariq Ali Alkhalifah, Dong-Joo Min

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

One of the most important issues in the multi-parametric full waveform inversion (FWI) is to find an optimal parameterization, which helps us recover the subsurface anisotropic parameters as well as seismic velocities, with minimal tradeoff. As a result, we analyze three different parameterizations for elastic VTI media in terms of the influence of the S-waves on the gradient direction for c13, the spatial coverage of gradient direction and the degree of trade-offs between the parameters. Based on the dependency results, we design a multi-stage elastic VTI FWI strategy to enhance both the spatial coverage of the FWI and the robustness to the trade-offs among the parameters as well as FWI for the c13 structure.
Original languageEnglish (US)
Pages (from-to)1204-1208
Number of pages5
JournalSEG Technical Program Expanded Abstracts 2015
Volume34
DOIs
StatePublished - Aug 19 2015

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