1887

Abstract

Summary

Non-linear seismic inversion faces difficulties with multiple local minima due to cycle skipping. It is possible to demonstrate that cycle skipping is unlikely to appear in the diffusive domain with a very common definition of the error.

Seismic data can be transformed to the diffusive domain and inverted to obtain intermediate estimates of the velocity model. This intermediate velocity model may serve as initial models for inversion processing in the wave domain or may serve as a velocity model for reverse time migration.

One of the properties of the wave to diffusion transform is that it effectively extracts refractions from a common shot gather or common receiver gather containing reflections, diffractions and refractions.

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/content/papers/10.3997/2214-4609.201800690
2018-06-11
2024-03-28
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References

  1. Lee, K.H., G.Liu and H.F.Morrison
    , 1989, A new approach to modeling the electromagnetic response of conductive media: Geophysics, 54, 1180–1192.
    [Google Scholar]
  2. Maaø, F.A.
    , 2007, Fast finite-difference time-domain modeling for marine-subsurface electromagnetic problems: Geophysics, 72, A19–A23.
    [Google Scholar]
  3. Mittet, R.
    , 2010, High-order finite-difference simulations of marine CSEM surveys using a correspondence principle for wave and diffusion fields: Geophysics, 75, F33–F50.
    [Google Scholar]
  4. , 2015, Seismic wave propagation concepts applied to the interpretation of marine controlled-source electromagnetics: Geophysics, 80, E63–E81.
    [Google Scholar]
  5. Mittet, R., and J.P.Morten
    , 2012, Detection and imaging sensitivity of the marine CSEM method: Geophysics, 77, E411–E425
    [Google Scholar]
  6. Shin, C. and Y.H.Cha
    , 2009, Waveform inversion in the Laplace-Fourier domain: Geophysical Journal International, 177, 1067–1079.
    [Google Scholar]
  7. Sirgue, L. and G.Pratt
    , 2004, Efficient waveform inversion and imaging: A strategy for selecting temporal frequencies: Geophysics, 69, 231–248.
    [Google Scholar]
  8. Virieux, J.M., R.Brossier, S.Garambois, S.Operto, and A.Ribodetti
    , 2012, Making seismic data as CSEM data through the Bäcklund transform: in5th Saint Petersburg International Conference and Exhibition.
    [Google Scholar]
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