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    Time-lapse analysis of sparse 3D seismic data from the CO2 storage pilot site at Ketzin, Germany

    Access Status
    Fulltext not available
    Authors
    Ivandic, M.
    Yang, C.
    Lüth, S.
    Cosma, C.
    Juhlin, Christopher
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Ivandic, M. and Yang, C. and Lüth, S. and Cosma, C. and Juhlin, C. 2012. Time-lapse analysis of sparse 3D seismic data from the CO2 storage pilot site at Ketzin, Germany, in Proceedings of the 74th EAGE Conference and Exhibition incorporating SPE EUROPEC 2012, May 23-26 2011, pp. 3686-3690. Copenhahen: European Association of Geoscientists & Engineers.
    Source Title
    74th European Association of Geoscientists and Engineers Conference and Exhibition 2012 Incorporating SPE EUROPEC 2012: Responsibly Securing Natural Resources
    DOI
    10.3997/2214-4609.20148258
    ISBN
    9781629937908
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/8860
    Collection
    • Curtin Research Publications
    Abstract

    In April 2004, a research pilot project in the German town of Ketzin started as the first onshore CO2 storage project in Europe. Injection started in June 2008 and until the latest repeat survey in February 2011 around 45 kilotons of CO2 had been injected into a saline aquifer at approximately 630 m depth. Different seismic methods, such as time-lapse Vertical Seismic Profiling, Crosswell, Moving Source Profiling and surface seismics have been employed to detect and monitor changes in the reservoir. We present here time-lapse results from sparse pseudo-3D seismic surveying with a radial distribution of acquisition profiles directed towards the approximate location of the injection well, which were acquired to link downhole surveys with full 3D surface seismic surveys. The results are consistent with the 3D seismic time-lapse studies over the injection site and show that the sparse 3D geometry can be used to qualitatively map the CO2 in the reservoir at a significantly lower effort than the full 3D surveying. The last repeat survey indicates preferential migration of the CO2 to the west. There are no indications of migration into the caprock on either of the repeat surveys. The same observation was obtained from the full 3D dataset.

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