Quasi-Analytical approximation for acoustic 3D full-waveform inversion

M. Malovichko, N. Khokhlov, N. Yavich, M. S. Zhdanov

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

This paper develops a new approach to 3D full-waveform inversion of the acoustic field data. This approach is based on a novel technique to compute the data gradient in the framework of seismic fullwaveform inversion carried out in the frequency domain. The quasi-Analytical (QA) approximation, which was initially developed for electromagnetic field modeling, is applied to the acoustic field. The advantage of this approach is that the QA approximation is almost as fast as the Born approximation, but much more accurate. We use this approach to reduce the computational load needed to calculate the Fréchet derivative operator required for the inversion. To demonstrate feasibility of the new approach, we inverted synthetic pressure responses of a model mimicking salt tectonics.

Original languageEnglish
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016 - Barcelona, Spain
Duration: 4 Sep 20168 Sep 2016

Conference

Conference22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016
Country/TerritorySpain
CityBarcelona
Period4/09/168/09/16

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