Time-lapse Simultaneous Joint Migration Inversion Applied to Realistic Synthetic Data Based on Grane Field

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    3 Citations (Scopus)


    We demonstrate the feasibility of Simultaneous Joint Migration Inversion (SJMI) as a tool for reservoir monitoring with a highly realistic synthetic model based on Grane field offshore Norway. JMI is a full wavefield inversion method that explains the observed reflection data using a parameterization in terms of propagation velocity and reflectivity. Transmission effects and internal multiples are included in the forward modeling process based on a multi-dimensional version of the Bremmer series. SJMI simultaneously inverts for several time-lapse datasets and is able to reliably recover the time-lapse effects in the reflectivity model. The time-lapse velocity differences could also be reasonably recovered, even though they look somewhat smeared compared to the true velocity differences, they are still able to explain the propagation effects in the data. Finally, we also show the effectiveness of SJMI dealing with the case of non-repeatable surveys.
    Original languageEnglish
    Title of host publication80th EAGE Conference and Exhibition 2018, 11-14 June, Copenhagen, Denmark
    Number of pages5
    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


    Conference80th EAGE Conference and Exhibition 2018
    Abbreviated titleEAGE 2018
    Internet address


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