Solving an Inverse Dynamic Seismic Problem by Multicomponent Elastic Full Waveform Inversion

Solving an Inverse Dynamic Seismic Problem by Multicomponent Elastic Full Waveform Inversion Full article

Journal

Doklady Earth Sciences
ISSN: 1028-334X , E-ISSN: 1531-8354

Output data

Year: 2018, Volume: 482, Number: 2, Pages: 1365-1369 Pages count : 5 DOI: 10.1134/s1028334x18100227

Authors

Gadylshin K.G. ¹ , Tcheverda V.A. ¹

Affiliations

1	Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

A numerical method for solving an inverse problem of the theory of seismic wave propagation, relying on the modified least square method, is proposed, substantiated, and implemented. The proposed modification is based on the decomposition of the velocity model of the geological medium into the subspaces of smoothly changing propagators and sharply changing reflectors. The modified functional exhibits strong nonlinearity relative to the macro-velocity component, since the operator M, which transforms the time reflector to the space reflector, depends on it significantly. However, the low dimensions of the subspace of the macro-velocity models make it possible to use quite effective minimizing methods successfully.

Gadylshin K.G. , Tcheverda V.A.
Solving an Inverse Dynamic Seismic Problem by Multicomponent Elastic Full Waveform Inversion
Doklady Earth Sciences. 2018. V.482. N2. P.1365-1369. DOI: 10.1134/s1028334x18100227 WOS Scopus РИНЦ OpenAlex

Гадыльшин К.Г. , Чеверда В.А.
Решение обратной динамической задачи сейсмики путем обращения полного многокомпонентного упругого волнового поля
Доклады академии наук. 2018. Т.482. №6. С.708-712. DOI: 10.31857/s000523100002920-6 РИНЦ OpenAlex

Submitted:

Apr 9, 2018

≡ Web of science:	WOS:000449885900028
≡ Scopus:	2-s2.0-85056313581
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