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    Warping for trim statics

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    segam2014-02812E1.pdf
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    3.053Mb
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    Description:
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    Type
    Conference Paper
    Authors
    Zhang, Dongliang
    Wang, Xin
    Huang, Yunsong cc
    Schuster, Gerard T. cc
    KAUST Department
    Center for Subsurface Imaging and Fluid Modeling
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2014-08-05
    Online Publication Date
    2014-08-05
    Print Publication Date
    2014-08-05
    Permanent link to this record
    http://hdl.handle.net/10754/593344
    
    Metadata
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    Abstract
    The quality of migration images depends on the accuracy of the velocity model. For large velocity errors, the migration image is strongly distorted, which unflattens events in the common image gathers and consequently leads to a blurring in the stacked migration image. To mitigate this problem, we propose dynamic image warping to flatten the common image gathers before stacking and to enhance the signal-to-noise ratio of the migration image. Numerical tests on the Marmousi model and GOM data show that image warping of the prestack images followed by stacking leads to much better resolved reflectors than the original migration image. The problem, however, is that the reflector locations have increased uncertainty because the wrong velocity model is still used.
    Citation
    Zhang*, D., Wang, X., Huang, Y., & Schuster, G. (2014). Warping for trim statics. SEG Technical Program Expanded Abstracts 2014. doi:10.1190/segam2014-0281.1
    Publisher
    Society of Exploration Geophysicists
    Journal
    SEG Technical Program Expanded Abstracts 2014
    Conference/Event name
    SEG Technical Program Expanded Abstracts 2014
    DOI
    10.1190/segam2014-0281.1
    Additional Links
    http://library.seg.org/doi/abs/10.1190/segam2014-0281.1
    ae974a485f413a2113503eed53cd6c53
    10.1190/segam2014-0281.1
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program

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