Towards joint interpretation of CSEM surveys with 4D seismic for reservoir monitoring

Olarinre Salako, Colin MacBeth, Lucy MacGregor

    Research output: Contribution to conferencePaper


    Here, we generate CSEM data from the fluid flow simulator by performing 1D forward modelling. For this purpose we utilise a heterogeneous model where resistivity is been measured using an inline acquisition geometry. It is observed, that timelapse CSEM surveys can be used to monitor realistic water flood fronts. Changes in the amplitude of the horizontal component, and phase of the vertical component, correlate with water saturation change. The sensitivities of the timelapse CSEM and the 4D seismic to water saturation change in a three phase system with pressure variation are compared using cross-plots. The CSEM is more responsive and consistently more linearly related to water saturation change than the seismic. However, direct measurements of saturation change from CSEM surveys still need to be constrained by knowledge of the spatial distribution of porosity, net-to-gross and reservoir thickness.
    Original languageEnglish
    Number of pages5
    Publication statusPublished - Jun 2012
    EventSPE Europec/74th EAGE Conference and Exhibition - Copenhagen, Denmark
    Duration: 4 Jun 20127 Jun 2012


    ConferenceSPE Europec/74th EAGE Conference and Exhibition


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