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    Geophysical monitoring of CO2 at the Ketzin storage site - The Results of the second 3D repeat seismic survey

    Access Status
    Fulltext not available
    Authors
    Ivandic, M.
    Juhlin, Christopher
    Lüth, S.
    Bergmann, P.
    Kashubin, A.
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Ivandic, M. and Juhlin, C. and Lüth, S. and Bergmann, P. and Kashubin, A. 2013. Geophysical monitoring of CO2 at the Ketzin storage site - The Results of the second 3D repeat seismic survey, in Proceedings of the 75th EAGE Conference and Exhibition incorporating SPE EUROPEC 2013, Jun 10-13 2013, pp. 5933-5937. London: European Association of Geoscientists & Engineers.
    Source Title
    75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers
    DOI
    10.3997/2214-4609.20130182
    ISBN
    9781629937915
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/9044
    Collection
    • Curtin Research Publications
    Abstract

    Various geophysical methods applied at the Ketzin storage site have successfully imaged migration of the injected CO2 within the target reservoir zone of the ~ 650-680 m deep saline aquifer. Results from the first 3D repeat seismic survey conducted in 2009, after about 15 months of injection (~22,000 t), showed that the CO2 plume was concentrated around the injection well with a lateral extent of approximately 300-400 m and a thickness of about 5–20 m. The plume, however, was not radially symmetric, but had a rather westerly trending tendency, revealing the heterogeneous nature of the reservoir. A second 3D repeat seismic survey was acquired in the Summer/Fall of 2012, when ~ 61,000 tons of CO2 had been injected. Preliminary results show further growth and migration of the anomaly which has been interpreted to be induced by the CO2 injection. It is similar in shape to the one observed at the time of the first repeat survey, but larger by approximately 100-200 m and much stronger with the highest amplitudes nearly centered at the injection well. There is still a pronounced westward propagating tendency. The new seismic data show no indication of upward migration into the caprock.

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