• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Simulating propagation of decoupled elastic waves using low-rank approximate mixed-domain integral operators for anisotropic media

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    geo2015-01842E1.pdf
    Size:
    3.604Mb
    Format:
    PDF
    Description:
    Main article
    Download
    Type
    Article
    Authors
    Cheng, Jiubing
    Alkhalifah, Tariq Ali cc
    Wu, Zedong cc
    Zou, Peng
    Wang, Chenlong
    KAUST Department
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Seismic Wave Analysis Group
    Date
    2016-03-15
    Online Publication Date
    2016-03-15
    Print Publication Date
    2016-03
    Permanent link to this record
    http://hdl.handle.net/10754/604975
    
    Metadata
    Show full item record
    Abstract
    In elastic imaging, the extrapolated vector fields are decoupled into pure wave modes, such that the imaging condition produces interpretable images. Conventionally, mode decoupling in anisotropic media is costly because the operators involved are dependent on the velocity, and thus they are not stationary. We have developed an efficient pseudospectral approach to directly extrapolate the decoupled elastic waves using low-rank approximate mixed-domain integral operators on the basis of the elastic displacement wave equation. We have applied k-space adjustment to the pseudospectral solution to allow for a relatively large extrapolation time step. The low-rank approximation was, thus, applied to the spectral operators that simultaneously extrapolate and decompose the elastic wavefields. Synthetic examples on transversely isotropic and orthorhombic models showed that our approach has the potential to efficiently and accurately simulate the propagations of the decoupled quasi-P and quasi-S modes as well as the total wavefields for elastic wave modeling, imaging, and inversion.
    Citation
    Simulating propagation of decoupled elastic waves using low-rank approximate mixed-domain integral operators for anisotropic media 2016, 81 (2):T63 GEOPHYSICS
    Sponsors
    We would like to thank S. Fomel for sharing his experience in designing low-rank approximate algorithms for wave propagation. The first author appreciates T. F. Wang and J. Z. Sun for their useful discussion in this study. We acknowledge supports from the National Natural Science Foundation of China (no. 41474099) and Shanghai Natural Science Foundation (no. 14ZR1442900). This paper is also based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award no. 2230. We thank SEG, BP, and HESS Corporation for making the 2D VTI and TTI models available.
    Publisher
    Society of Exploration Geophysicists
    Journal
    GEOPHYSICS
    DOI
    10.1190/geo2015-0184.1
    Additional Links
    http://library.seg.org/doi/10.1190/geo2015-0184.1
    ae974a485f413a2113503eed53cd6c53
    10.1190/geo2015-0184.1
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program

    entitlement

     
    DSpace software copyright © 2002-2022  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.