Using one-way propagators to build a full wavefield inversion process

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    Abstract

    Nowadays, there is a strong emphasis on explaining the full seismic wavefield for obtaining detailed subsurface information, which is indeed the way forward to improve the final resolution of images and – after that – reservoir properties. Within the full waveform inversion (FWI) community there is a strong bias towards one type of modelling, which is the finite-difference based solutions of the wave equation. However, one issue associated with FWI is that it does not yet provide a full strategy towards a broadband elastic reservoir inversion process. Traditionally, FWI is used for estimating the velocity model that is used as input for standard migration-inversion approaches, thereby losing the advantages of the full waveform approach, such as including the effect of multiples. As an alternative, the Joint Migration Inversion process, with an operator-based modelling engine, provides an open framework that can include many physical features (such as anisotropy, elastic angle-dependent reflectivity), without having to re-implement a certain wave equation. By using one-way propagators in combination with reflectivity operators, a full two-way response can be built. It provides consistent full wavefield outputs that can lead to accurate elastic parameters in the reservoir, while fully removing the overburden imprint.
    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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