Hessian-based multiparameter fractional viscoacoustic full waveform inversion

Guangchi Xing, Tieyuan Zhu

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations

Abstract

Recent progress on fractional modeling enables incorporating seismic attenuation into waveeld simulation in an accurate and effcient way. But its inverse problem, i.e., the multiparameter viscoacoustic full waveform inversion (FWI), still suffers from various issues, especially the crosstalk between velocity and attenuation. In this study, we integrate the Hessian information via the Newton-CG framework and develop the multiparameter fractional viscoacoustic FWI algorithm. It signi cantly mitigates the crosstalk problems and sheds light upon simultaneous inversion for both velocity and Q models.

Original languageEnglish (US)
Pages (from-to)895-899
Number of pages5
JournalSEG Technical Program Expanded Abstracts
Volume2020-October
DOIs
StatePublished - 2020
EventSociety of Exploration Geophysicists International Exhibition and 90th Annual Meeting, SEG 2020 - Virtual, Online
Duration: Oct 11 2020Oct 16 2020

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

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