Efcient mixed domain pure P wave equations for 2D and 3D tilted transversely isotropic media

Li, Bowen; Wang, Deli; Zhou, Jinju; Zhang, Qianxiang; Wang, Rui

doi:10.1007/s11600-020-00438-9

Artykuł - szczegóły

Tytuł artykułu

Efcient mixed domain pure P wave equations for 2D and 3D tilted transversely isotropic media

Autorzy

Li Bowen , Wang Deli , Zhou Jinju , Zhang Qianxiang , Wang Rui

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-020-00438-9

Warianty tytułu

Języki publikacji

Abstrakty

In transversely isotropic (TI) media, accurate and efcient pure P-wave extrapolation is the basis of seismic imaging and inversion algorithms. For pure P-wave equations in TI media, combining the fnite-diference (FD) method with the pseudospectral (PS) method is an efective solution. However, if the mixed-domain pure P-wave equation contains multiple wavenumbers, using the hybrid approach will involve multiple Fourier transforms, which will result in high computational costs. Referring to the weak anisotropy approximation, we propose a new approximate P-wave phase velocity expression. We then use an optimization strategy to reduce the number of wavenumber terms in the corresponding dispersion relations and derive the mixed-domain pure P-wave equations in 2D and 3D tilted transversely isotropic (TTI) media. Through numerical experiments in 2D and 3D TTI models, we verify the feasibility and efciency of the proposed mixed-domain P-wave equations.

Słowa kluczowe

anisotropy P-wave fourier transform

anizotropia fala P transformata Fouriera

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2020

Tom

Vol. 68, no. 3

Strony

605--618

Opis fizyczny

Bibliogr. 45 poz.

Twórcy

autor

Li Bowen

libw18@mails.jlu.edu.cn

College of Geo-Exploration Science and Technology, Jilin University, Changchun, China

autor

Wang Deli

wangdeli@jlu.edu.cn

College of Geo-Exploration Science and Technology, Jilin University, Changchun, China

autor

Zhou Jinju

Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, China

autor

Zhang Qianxiang

Changjiang Geophysical Exploration and Testing CO. LTD., Wuhan, China

autor

Wang Rui

College of Geo-Exploration Science and Technology, Jilin University, Changchun, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-ae79af71-be12-43e9-9325-a67732de25c3