1887

Abstract

Summary

A new approximation for qP-wave velocities is developed for shales (TI medium). Proposed approximation is based on the linear relation between the velocity curvatures taken at zero and 90 degrees angles. We found that this relation is controlled by one parameter only. The resulting approximation is using the average value of this parameter from a large dataset of shale properties. Comparing with other known approximations for few shale samples, the proposed approximation shows the best accuracy.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201600403
2016-05-02
2024-04-25
Loading full text...

Full text loading...

References

  1. Alkhalifah, T.
    [1998] Acosutic approximations for processing in transversely isotropic media. Geophysics, 63, 623–631.
    [Google Scholar]
  2. Alkhalifah, T., and Tsvankin, I.
    [1995] Velocity analysis for transversely isotropic media. Geophysics, 60, 1550–1556.
    [Google Scholar]
  3. Fomel, S.
    [2004] On anelliptic approximations for qP velocities in TI media. Geophysical Prospecting, 52(3), 247–259.
    [Google Scholar]
  4. Fomel, S., and Stovas, A.
    [2010] The generalized non-hyperbolic moveout approximation. Geophysics, 75(2), U9–U18.
    [Google Scholar]
  5. Sripanich, Y., and Fomel, S.
    [2015] qP velocities approximations in TI media. SEG annual meeting, New Orleans.
    [Google Scholar]
  6. Stovas, A.
    [2010] Generalized moveout approximation for qP- and qSV-waves in a homogeneous transversely isotropic medium. Geophysics, 75(6), D79–D84.
    [Google Scholar]
  7. Stovas, A., and Fomel, S.
    [2012] Generalized moveout approximation in tau-p domain. Geophysics, 77(2), U23–U30.
    [Google Scholar]
  8. Thomsen, L.
    [1986] Weak elastic anisotropy. Geophysics, 51, 1954–1966.
    [Google Scholar]
  9. Vernik, L., and Liu, X.
    [1997] Velocity anisotropy in shales: A petrophysical study. Geophysics, 62, 521–532.
    [Google Scholar]
  10. Wang, Z.
    [2002] Seismic anisotropy in sedimentary rocks, Part 2: Laboratory data. Geophysics, 67, 1423–1440.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201600403
Loading
/content/papers/10.3997/2214-4609.201600403
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error