1887

Abstract

Summary

The relative geometrical spreading controls the amplitude of the waves propagating through the velocity model. Usually, relative geometrical spreading is computed from the ray tracing. In this paper, I derived simple analytical formulae to compute the relative geometrical spreading of P-wave in the stack of acoustic orthorhombic layers with azimuthal variations in symmetry planes. I also analyze the kinematical properties of derived equation and perform the sensitivity analysis with respect to three anelliptic parameters. The simple and accurate approximation for the relative geometrical spreading is derived.

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/content/papers/10.3997/2214-4609.201701844
2017-05-15
2024-04-20
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References

  1. Al-Dajani, A., I.Tsvankin, and M.N.Toksoz, [1998]. Non-hyperbolic reflection moveout for azimuthally anisotropic media: 68th Annual International Meeting, SEG, Expanded Abstracts, 1479–1482.
    [Google Scholar]
  2. Alkhalifah, T.
    [1998]. Acoustic approximations for processing in transversely isotropic media: Geophysics, 63, 623–631.
    [Google Scholar]
  3. Alkhalifah, T., and I.Tsvankin
    [1995]. Velocity analysis for transversely isotropic media: Geophysics, 60, 1550–1566.
    [Google Scholar]
  4. Cerveny, V.
    [2001]. Seismic ray theory: Cambridge University Press.
    [Google Scholar]
  5. Stovas, A. and B.Ursin
    [2009]. Improved geometrical-spreading approximation in layered transversely isotropic media: Geophysics, 74, no. 5, 85–95.
    [Google Scholar]
  6. Stovas, A.
    [2015]. Azimuthally dependent kinematic properties of orthorhombic media: Geophysics, 80, no.6, 107–C122.
    [Google Scholar]
  7. Ursin, B.
    [1990]. Offset-dependent geometrical spreading in a layered medium: Geophysics, 55, 492–496.
    [Google Scholar]
  8. Ursin, B., and K.Hokstad
    [2003], Geometrical spreading in a layered transversely isotropic medium with vertical symmetry axis: Geophysics, 68, 2082–2091.
    [Google Scholar]
  9. Xu, X. and I.Tsvankin
    [2006]. Anisotropic geometrical-spreading correction for wide-azimuth P-wave reflection: Geophysics, 71, no. 5, D161–D170.
    [Google Scholar]
  10. [2008]. Moveout-based geometrical spreading correction for PS-waves in layered anisotropic media: Journal of Geophysics and Engineering, 5, 195–202.
    [Google Scholar]
  11. Xu, X. I.Tsvankin and A.Pech
    [2005]. Geometrical spreading of P-waves in horizontally layered, azimuthally anisotropic media: Geophysics, 70, no.5, 43–53.
    [Google Scholar]
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