1887
  1. Home
  2. Conferences
  3. Conference Proceedings
  4. 76th EAGE Conference and Exhibition 2014
  5. Conference paper

Abstract

Summary

Conventional (linear) migration algorithms use only a small portion of recorded seismic data (primary reflections) because they rely on single-scattering assumptions. Nonlinear imaging methods also use reflected multiply-scattered waves, benefiting from their additional illumination and sensitivity to the model. Primary and multiple reflections are, however, just part of the energy generated during a seismic experiment - transmitted waves are also generated but are usually not recorded by one-sided (surface seismic) acquisition systems. In theory only two-sided illumination of the imaging target would allow this energy to be recorded and used in migration. Here we use a synthetic example of subsalt imaging to show the nature of improvements to the seismic image (and extended image) from the use of multiples and transmitted waves. We then suggest a practical approach to construct the additional fields required by nonlinear two-sided imaging without the need of a velocity model with sharp contrasts and receivers (and/or sources) in the subsurface.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.20141487
2014-06-16
2025-01-23

  • From This Site

    /content/papers/10.3997/2214-4609.20141487
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Biondi, B.
    [2006] 3D seismic imaging. SEG.
     [Google Scholar]
  2. Broggini, F., Snieder, R., and Wapenaar, K.
    [2012] Focusing the wavefield inside an unknown 1D medium – beyond seismic interferometry. Geophysics, 77, (5), A25–A28.
     [Google Scholar]
  3. da Costa, C., Ravasi, M., Meles, G., and Curtis, A.
    [2014] Elastic autofocusing. 76th EAGE Conference & Exhibition Extended Abstracts.
     [Google Scholar]
  4. Fleury, C.
    [2013] Increasing illumination and sensitivity of reverse-time migration with internal multiples. Geophysical Prospection, 61, (5), 891–906.
     [Google Scholar]
  5. Fleury, C. and Vasconcelos, I.
    , [2012] Imaging condition for nonlinear scattering-based imaging: Estimate of power loss in scattering. Geophysics, 77, (1), S1–S18.
     [Google Scholar]
  6. Halliday, D., and Curtis, A.
    [2010] An interferometric theory of source-receiver scattering and imaging. Geophysics, 75, SA95–SA103.
     [Google Scholar]
  7. Ravasi, M. and Curtis, A.
    [2013] Nonlinear scattering based imaging in elastic media: theory, theorems and imaging conditions. Geophysics, 78, (3).
     [Google Scholar]
  8. Stolt, R. and Weglein, A.
    [1985] Migration and inversion of seismic data. Geophysics, 50, 2458–2472.
     [Google Scholar]
  9. Vasconcelos, I.
    [2013] Source-receiver reverse-time imaging of dual-source, vector-acoustic seismic data. Geophysics, 78, (2), WA147–WA158.
     [Google Scholar]
  10. Vasconcelos, I., Sava, P., and Douma, H.
    [2010] Nonlinear extended images via image-domain interferometry. Geophysics, 75, (6), SA105–SA115.
     [Google Scholar]
  11. Wapenaar, K., Broggini, F., Slob, E., and Snieder, R.
    [2013] Three-Dimensional Single-Sided Marchenko Inverse Scattering, Data-Driven Focusing, Green’s Function Retrieval, and Their Mutual Relations. Physical Review Letters, 110, (8), 084301.
     [Google Scholar]
/content/papers/10.3997/2214-4609.20141487
Loading
Beyond Conventional Migration - Nonlinear Subsalt Imaging with Transmissions and Two-sided Illumination
Conference Proceedings 2014, 1 (2014); https://doi.org/10.3997/2214-4609.20141487
/content/papers/10.3997/2214-4609.20141487
/content/papers/10.3997/2214-4609.20141487
Loading

Data & Media loading...

Most Cited This Month Most Cited RSS feed

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