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    Steering Migration with Diffractions in Seismic Exploration for Hard Rock Environments

    Access Status
    Fulltext not available
    Authors
    Tertyshnikov, Konstantin
    Pevzner, Roman
    Bóna, Andrej
    Alonaizi, Faisal Abdulkader
    Gurevich, Boris
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Tertyshnikov, K. and Pevzner, R. and Bóna, A. and Alonaizi, F.A. and Gurevich, B. 2013. Steering Migration with Diffractions in Seismic Exploration for Hard Rock Environments, in Proceedings of the 75th EAGE Conference & Exhibition incorporating SPE EUROPEC, Jun 10-13 2013. London, UK: EAGE.
    Source Title
    75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013
    Source Conference
    75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013
    DOI
    10.3997/2214-4609.20130704
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/22969
    Collection
    • Curtin Research Publications
    Abstract

    Hard rock seismic exploration normally has to deal with rather complex geological environments. These types of environments are usually characterized by a large number of local heterogeneities (e.g., faults, fracture zones, steeply dip interfaces). The seismic data from such environments often have a poor signal to noise ratio because of the complexity of hard rock geology. In such situations, the processing algorithms that are capable of handling data with a low signal/noise ratio are essential for a reflection seismic exploration. In this paper we describe an alteration of the 3D Kirchhoff post-stack migration algorithm that utilizes coherency attributes obtained by the diffraction imaging algorithm in 3D to weight or steer the main Kirchhoff summation. We apply the method to a 3D synthetic model with a presence of high level of random noise; and test the algorithm on the 3D seismic volume acquired on a mine site located in Western Australia.

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