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Non-hyperbolic common reflection surface

Authors

  • Sergey Fomel,

    Corresponding author
    1. Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, TX 78713-8924, USA
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  • Roman Kazinnik

    Corresponding author
    1. Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, TX 78713-8924, USA
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E-mail: sergey.fomel@beg.utexas.edu

Currently ConocoPhillips, 600 N. Dairy Ashford, Houston, TX 77079-1175, USA. E-mail: roman.only@gmail.com

ABSTRACT

The method of common reflection surface (CRS) extends conventional stacking of seismic traces over offset to multidimensional stacking over offset-midpoint surfaces. We propose a new form of the stacking surface, derived from the analytical solution for reflection traveltime from a hyperbolic reflector. Both analytical comparisons and numerical tests show that the new approximation can be significantly more accurate than the conventional CRS approximation at large offsets or at large midpoint separations while using essentially the same parameters.

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