1887

Abstract

Summary

Internal multiples deteriorate the quality of the migrated image obtained conventionally by imaging single scattering energy. However, imaging internal multiples properly has the potential to enhance the migrated image because they illuminate zones in the subsurface that are poorly illuminated by single-scattering energy such as nearly vertical faults. Standard migration of these multiples provide subsurface reflectivity distributions with low spatial resolution and migration artifacts due to the limited recording aperture, coarse sources and receivers sampling, and the band-limited nature of the source wavelet. Hence, we apply a linearized least-square inversion scheme to mitigate the effect of the migration artifacts, enhance the spatial resolution, and provide more accurate amplitude information when imaging internal multiples. Application to synthetic data demonstrated the effectiveness of the proposed inversion in imaging a reflector that is poorly illuminated by single-scattering energy. The least-square inversion of double-scattered data helped delineate that reflector with minimal acquisition fingerprint.

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/content/papers/10.3997/2214-4609.20141160
2014-06-16
2020-08-05
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References

  1. Behura, J., Wapenaar, K. and Snieder, R.
    [2012] Newton-Marchenko-Rose Imaging, SEG, chap.685.1-6,doi:10.1190/segam2012‑1513.1.
    https://doi.org/10.1190/segam2012-1513.1 [Google Scholar]
  2. Claerbout, J.F.
    [1992] Earth Sounding Analysis: Processing Versus Inversion.
    [Google Scholar]
  3. Malcolm, A.E., B.Ursin, B. and De Hoop, M.V.
    [2011] Seismic imaging and illumination with internal multiples, Geophysical Journal International, 176, 847–864.
    [Google Scholar]
  4. LeBras, R. and Clayton, R.
    [1988] An iterative inversion of backscattered acoustic waves. GEOPHYSICS, 53(4), 501–508.
    [Google Scholar]
  5. Nemeth, T., Wu, C. and Schuster, G.
    [1999] Least-square migration of incomplete reflection data. GEOPHYSICS, 64(1), 208–221.
    [Google Scholar]
  6. Zuberi, M. and Alkhalifah, T.
    [2013] Selective Interferometric Imaging of Internal Multiples. 75th Conference and Exhibition. doi: 10.3997/2214‑4609.20130197.
    https://doi.org/10.3997/2214-4609.20130197 [Google Scholar]
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