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    Seismic modeling of the AVO/AVA response to CO2 injection at the Ketzin site, Germany

    Access Status
    Open access via publisher
    Authors
    Ivanova, A.
    Bergmann, P.
    Kummerow, J.
    Yang, C.
    Lüth, S.
    Juhlin, Christopher
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Ivanova, A. and Bergmann, P. and Kummerow, J. and Yang, C. and Lüth, S. and Juhlin, C. 2013. Seismic modeling of the AVO/AVA response to CO2 injection at the Ketzin site, Germany, pp. 490-498.
    Source Title
    Energy Procedia
    DOI
    10.1016/j.egypro.2013.08.056
    ISSN
    1876-6102
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/39928
    Collection
    • Curtin Research Publications
    Abstract

    Over 64 kilotons of CO2 have been injected (May, 2013) into a heterogeneous sandstone reservoir (saline aquifer) at 630-650 m depth. 4D seismics have been applied to monitor CO2 at the Ketzin site. However, the obtained time-lapse seismic signals have been so far interpreted as being caused by fluid saturation changes only. Modeling of the AVO/AVA response allows us to study two kinds of effects: CO2-saturation- and pore-pressure-related effects. Our results indicate that it is rather infeasible to discriminate between both these effects at the Ketzin site dealing with the real seismic data with limited signal/noise ratios. © 2013 The Authors. Published by Elsevier Ltd.

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