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    4D imaging of the Ketzin CO2 storage site (Germany) using a combination of seismic and electrical resistivity imaging

    Access Status
    Fulltext not available
    Authors
    Bergmann, P.
    Ivandic, M.
    Norden, B.
    Rücker, C.
    Kiessling, D.
    Schmidt-Hattenberger, C.
    Lüth, S.
    Juhlin, Christopher
    Date
    2014
    Type
    Conference Paper
    
    Metadata
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    Citation
    Bergmann, P. and Ivandic, M. and Norden, B. and Rücker, C. and Kiessling, D. and Schmidt-Hattenberger, C. and Lüth, S. et al. 2014. 4D imaging of the Ketzin CO2 storage site (Germany) using a combination of seismic and electrical resistivity imaging, in Proceedings of the 76th EAGE Conference and Exhibition 2014: Experience the Energy, Jun 16-19 2014, pp. 3505-3509. Amsterdam: European Association of Geoscientists & Engineers.
    Source Title
    76th European Association of Geoscientists and Engineers Conference and Exhibition 2014: Experience the Energy - Incorporating SPE EUROPEC 2014
    DOI
    10.3997/2214-4609.20141000
    ISBN
    9781632666949
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/10279
    Collection
    • Curtin Research Publications
    Abstract

    A combination of seismic and geoelectric processing is presented using a structurally constrained inversion approach. Structural constraints are interpreted from seismic data and inserted into the geoelectric inversion through a local regularisation, which allows inverted resistivities to behave also discontinuously across these a priori constraints. This sequential arrangement of seismic processing and constrained resistivity inversion makes the generic assumption that the petrophysical parameters of both methods change across common lithostructural boundaries. We evaluate the approach using a numerical example and a real 4D data example from the CO2 pilot storage site, Ketzin, Germany. The real data case shows that the time-lapse anomalies, which have independently been imaged by surface seismic and surface-downhole geoelectric methods, correlate well at the CO2-flooded reservoir. However, at some distance to the downhole electrodes the geoelectric images provide a notably lower resolution in comparison to the corresponding seismic images. The results demonstrate the relevance of the presented approach for the combination of both methods in geophysical CO2 storage monitoring operations.

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    • Combination of seismic reflection and constrained resistivity inversion with an application to 4D imaging of the CO2 storage site, Ketzin, Germany
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