Generalized Full Wavefield Modeling: Beyond Neumann

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    Abstract

    Generalized Full Wavefield Modeling is a directional modeling method that incorporates reflection and transmission operators. It employs Neumann's method, an iterative inversion scheme for obtaining the solutions (the wavefields),
    which is, nonetheless, well-known not to be necessarily convergent for all situations. Thus, we use two methods that represent a generalization of the Neumann's solution; one is stationary overrelaxation, and the other is
    successive overrelaxation. Both methods attempt to scale the wavefield residual such that it does not grow with increasing number of iterations. One method, stationary overrelaxation, uses a constant scale factor while the other, successive overrelaxation, varies the scale factor with iterations. A numerical example shows clearly that successive overrelaxation yields a stable solution, unlike the other two methods (Neumann's and stationary overrelaxation), since it forces the residual to be reducing in each iteration.
    Original languageEnglish
    Title of host publication80th EAGE Conference and Exhibition 2018, 11-14 June, Copenhagen, Denmark
    Number of pages5
    DOIs
    Publication statusPublished - 2018
    Event80th EAGE Conference and Exhibition 2018: Opportunities presented by the energy transition - Copenhagen, Denmark
    Duration: 11 Jun 201814 Jun 2018
    Conference number: 80
    https://events.eage.org/2018/EAGE%20Annual%202018

    Conference

    Conference80th EAGE Conference and Exhibition 2018
    Abbreviated titleEAGE 2018
    CountryDenmark
    CityCopenhagen
    Period11/06/1814/06/18
    Internet address

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