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    Crossline migration of three-dimensional prestack data

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    Author
    Rampersad, Tara Rookmin
    Date
    1996
    Advisor
    Talwani, Manik
    Degree
    Master of Arts
    Abstract
    A new technique for imaging 3-D prestack seismic reflection data has been developed. This method approximates the Kirchhoff one-pass 3-D prestack depth migration and is based on directly splitting the complex one-pass process into a simpler 2-D x 2-D operation. The first step is 2-D migration in the crossline direction. This is performed as a prestack time migration and creates a "true" 2-D line, provided that the crossline structure is not very complex. The second step, inline migration, is used to determine the velocity function and to obtain the depth image. The kinematics and amplitude behavior of this new scheme closely approximate that of the one-pass process. It is a significantly faster process, and offers a practical alternative for adjusting migration velocities, and building a velocity model. When applied to a field data example, the image created by our new technique compares quite favorably to other available 3-D migration schemes.
    Keyword
    Geophysics
    Citation
    Rampersad, Tara Rookmin. "Crossline migration of three-dimensional prestack data." (1996) Master’s Thesis, Rice University. https://hdl.handle.net/1911/14079.
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    • Rice University Electronic Theses and Dissertations [14030]

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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
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