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    Feasibility of high-resolution fracture characterization using waveform inversion

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    Type
    Conference Paper
    Authors
    Masmoudi, N.
    Tsvankin, I.
    Alkhalifah, Tariq Ali cc
    KAUST Department
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Seismic Wave Analysis Group
    Date
    2017-03-13
    Permanent link to this record
    http://hdl.handle.net/10754/663929
    
    Metadata
    Show full item record
    Abstract
    Wide-azimuth surface seismic data contain valuable information about the fracture properties, such as crack density, fluid content and fracture direction. Although this information can be obtained from standard techniques such as tomographic velocity analysis or amplitude variation with offset and azimuth, full-waveform inversion (FWI) has the potential of higher-resolution fracture characterization. Building a wavefield-based inversion framework for the fracture parameters requires identifying parameter combinations that minimize trade-offs and ensure high-resolution of the results. Using the Born approximation, which is the central ingredient of the FWI updating process, we derive the radiation patterns of different parameters of the effective orthorhombic medium formed by a vertical fracture set embedded in a VTI (transversely isotropic with a vertical symmetry axis) background. The radiation patterns describe the angular influence of each parameter, in the considered parametrization, on seismic data, and thus give insights into the resolution of the fracture properties. We show that the highresolution recovery of crack density depends on the fracture infill, while the fracture direction might not be well-resolved because of the trade-off between different parameters.
    Citation
    Masmoudi, N., Tsvankin, I., & Alkhalifah, T. (2016). Feasibility of High-resolution Fracture Characterization Using Waveform Inversion. 78th EAGE Conference and Exhibition 2016. doi:10.3997/2214-4609.201600996
    Sponsors
    We would like to thank KAUST and Colorado School of Mines for their support.
    Publisher
    EAGE Publications
    Conference/Event name
    78th EAGE Conference and Exhibition 2016: Efficient Use of Technology - Unlocking Potential
    ISBN
    9789462821859
    DOI
    10.3997/2214-4609.201600996
    Additional Links
    http://www.earthdoc.org/publication/publicationdetails/?publication=85241
    ae974a485f413a2113503eed53cd6c53
    10.3997/2214-4609.201600996
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program

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