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    Application of super-virtual seismic refraction interferometry to enhance first arrivals: A case study from Saudi Arabia

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    Type
    Article
    Authors
    Alshuhail, Abdulrahman Abdullatif Abdulrahman
    Aldawood, Ali cc
    Hanafy, Sharif
    KAUST Department
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2012-01
    Permanent link to this record
    http://hdl.handle.net/10754/555634
    
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    Abstract
    Complex near-surface anomalies are one of the main onshore challenges facing seismic data processors. Refraction tomography is becoming a common technology to estimate an accurate near-surface velocity model. This process involves picking the first arrivals of refracted waves. One of the main challenges with refraction tomography is the low signal-to-noise ratio characterizing the first-break waveform arrivals, especially for the far-offset receivers. This is especially evident in data recorded using reflection acquisition geometry. This low signal-to-noise ratio is caused by signal attenuation due to geometrical spreading of the seismic wavefield, near-surface-generated noise, and amplitude absorption. Super-virtual refraction interferometry improves the quality of the first-break picks by enhancing the amplitude of the refracted waves and attenuating the amplitude of the random noise.
    Citation
    Application of super-virtual seismic refraction interferometry to enhance first arrivals: A case study from Saudi Arabia 2012, 31 (1):34 The Leading Edge
    Publisher
    Society of Exploration Geophysicists
    Journal
    The Leading Edge
    DOI
    10.1190/1.3679326
    Additional Links
    http://library.seg.org/doi/abs/10.1190/1.3679326
    ae974a485f413a2113503eed53cd6c53
    10.1190/1.3679326
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program; Center for Subsurface Imaging and Fluid Modeling (CSIM)

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