1887

Abstract

Summary

Reliably estimating primary reflections in a shallow-water scenario remains a challenge. Therefore, we introduce the integration of closed-loop surface-related multiple estimation (CL-SRME) and full wavefield migration (FWM). Multiples present in the seismic data can help infill the acquisition imprint of the FWM image. With the image as constraint, we are capable of reconstructing the data at smaller offsets, which is crucial for CL-SRME. Therefore, in the proposed framework, we use the image to back-project the information from multiples to primaries with the physical constraint of all information belonging to the same earth model. We utilize a cascaded approach, which first involves reconstructing incomplete data via FWM and then uses the fully-sampled reconstructed data as the desired input for CL-SRME. Applications to both synthetic and field data demonstrate the good performance of the proposed framework in a shallow-water scenario.

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/content/papers/10.3997/2214-4609.201900779
2019-06-03
2024-03-29
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References

  1. Berkhout, A.J.
    [1982] Seismic migration, imaging of acoustic energy by wave field extrapolation, A: theoretical aspects. Elsevier (second edition).
    [Google Scholar]
  2. [2014a] Review Paper: An outlook on the future of seismic imaging, Part I: Forward and reverse modelling. Geophysical Prospecting, 62, 911–930.
    [Google Scholar]
  3. [2014b] Review Paper: An outlook on the future of seismic imaging, Part II: Full-Wavefield Migration. Geophysical Prospecting, 62, 931–949.
    [Google Scholar]
  4. Berkhout, A.J. and Verschuur, D.J.
    [2006] Focal transformation, an imaging concept for signal restoration and noise removal. Geophysics, 71(6), A55–A59.
    [Google Scholar]
  5. Davydenko, M. and Verschuur, D.J.
    [2017] Full-wavefield migration: using surface and internal multiples. Geophysical Prospecting, 65, 7–21.
    [Google Scholar]
  6. Kabir, M.M.N. and Verschuur, D.J.
    [1995] Restoration of missing offsets by parabolic Radon transform. Geophys. Prosp., 43(3), 347–368.
    [Google Scholar]
  7. Lopez, G.A. and Verschuur, D.J.
    [2014] Closed-Loop SRME - A New Direction in Surface Multiple Removal Algorithms. EAGE, Eur. Ass. of Expl. Geophys., Expanded abstracts, Amsterdam, We E102 02.
    [Google Scholar]
  8. [2015] Closed-loop surface-related multiple elimination and its application to simultaneous data reconstruction. Geophysics, 80(12), V189–V199.
    [Google Scholar]
  9. Nath, A. and Verschuur, D.J.
    [2017] Using surface-related multiples in imaging for data with large acquisition gaps. SEG, Soc. Expl. Geophys., Expanded abstracts, Houston, 4768–4772.
    [Google Scholar]
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