Time-lapse simultaneous joint-migration Inversion for high-resolution imaging/inversion based on a realistic synthetic model from the Grane field

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    2 Citations (Scopus)

    Abstract

    Simultaneous Joint Migration and Inversion (SJMI) is an effective time-lapse tool for reservoir monitoring, which combines a joint time-lapse data processing strategy with the Joint Migration Inversion (JMI) method. In SJMI, fine details are not expected in its inverted velocity model, as it only explains the propagation effects in the data, while the scattering effects are explained by the inverted reflectivity model. However, for time-lapse processing, high-resolution time-lapse velocity differences are usually a demand. Therefore, we propose to make a link between reflectivity and velocity update during SJMI optimization, in order to get more localized time-lapse velocity differences. In the end, with a highly realistic synthetic model based on Grane field offshore Norway, we demonstrate a more localized inverted time-lapse velocity difference using the proposed SJMI, compared with the regular SJMI.
    Original languageEnglish
    Title of host publicationSEG Technical Program Expanded Abstracts 2018
    Subtitle of host publication14-19 October 2018, Anaheim, United States
    Pages5362-5366
    DOIs
    Publication statusPublished - 2018
    EventSEG Annual Meeting 2018 - Anaheim convention Center, Anaheim, United States
    Duration: 14 Oct 201819 Oct 2018
    Conference number: 88
    https://seg.org/Annual-Meeting-2018

    Publication series

    NameSEG Technical Program Expanded Abstracts 2018
    PublisherSEG
    ISSN (Electronic)1949-4645

    Other

    OtherSEG Annual Meeting 2018
    Abbreviated titleSEG 2018
    CountryUnited States
    CityAnaheim
    Period14/10/1819/10/18
    Internet address

    Keywords

    • east squares
    • time-lapse
    • depth migration
    • full-waveform inversion
    • high-resolution
    • least squares

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