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    3D Diffraction Imaging of Linear Features and its Application to Seismic Monitoring

    Access Status
    Fulltext not available
    Authors
    Alonaizi, Faisal Abdulkader
    Pevzner, Roman
    Bona, Andrej
    Gurevich, Boris
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Alonaizi, F. and Pevzner, R. and Bona, A. and Gurevich, B. 2013. 3D Diffraction Imaging of Linear Features and its Application to Seismic Monitoring, in Proceedings of the 75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013, Jun 10-13 2013. London: European Association of Geoscientists & Engineers (EAGE).
    Source Title
    75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013
    Source Conference
    75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013
    DOI
    10.3997/2214-4609.20130703
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/44529
    Collection
    • Curtin Research Publications
    Abstract

    Many subsurface features, such as faults, fractures, cracks, or fluid content terminations are defined by geological discontinuities. Seismic response from such features is encoded in diffractions. We develop an algorithm for imaging such discontinuities by detecting edge diffractions. The algorithm exploits phase-reversal phenomena of edge diffractions, and uses them as a criterion to separate diffractions from specular reflections. The performance of the method has been demonstrated on both synthetic and real 3D seismic data. The output image focuses the diffracted energy back to its origin, and shows high semblance values at the edge of the object. The method is applied on conventionally stacked data producing an image contains only diffraction events called (D-volume). We also reveal the potential of diffractions to image and track the changes of the CO2 plume using time-lapse analysis and detect any possible CO2 seepage from its primary containment.

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