1887

Abstract

Summary

Visco-acoustic full waveform inversion aims at retrieving the velocity and attenuation models, but suffers from cross-talks between parameters. Attenuation dispersion leads to equivalent kinematic velocity models, as different combinations of velocity and attenuation have the same kinematic effects for band-limited seismic waves. We propose a hybrid inversion strategy: we incorporate the kinematic relationship to guide the non-linear inversion. The hybrid inversion strategy includes two steps. It first updates the kinematic velocity, and then retrieves the velocity and attenuation models for a fixed kinematic velocity. This hybrid inversion strategy is tested on the Marmousi model dominated by reflections, and compared with the conventional simultaneous inversion strategy. It proves that the hybrid inversion strategy mitigates the cross-talks without involving the Hessian matrix.

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/content/papers/10.3997/2214-4609.201901916
2019-06-03
2024-04-18
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References

  1. Blanch, J.O., Robertsson, J.O.A. and Symes, W.W.
    [1995] Modelling of a constant Q: Methodology and algorithm for an efficient and optimally inexpensive viscoelastic technique. Geophysics, 60(1), 176–184.
    [Google Scholar]
  2. Fabien-Quellet, G., Gloaguen, E. and Giroux, B.
    [2017] Time domain viscoelastic full waveform inversion. Geophysical Journal International, 209, 1718–1734.
    [Google Scholar]
  3. Futterman, W.I.
    [1962] Dispersive body wave. J. Geophys. Res., 67, 5279–5291.
    [Google Scholar]
  4. Kamei, R. and Pratt, R.G.
    [2013] Inversion strategies for visco-acoustic waveform inversion. Geophys. J. Int., 859–884.
    [Google Scholar]
  5. Plessix, R.E., Stopin, A., Kuehl, H., Goh, V. and Overgaag, K.
    [2016] Visco-acoustic full waveform inverision. In: 78th EAGE Conference and Exhibition, Extended Abstracts.
    [Google Scholar]
  6. Prieux, V., Brossier, R., Operto, S. and Virieux, J.
    [2013] Multiparameter full waveform inversion of multicomponent OBC data from Valhall. Part 1: imaging compressional wavespeed, density and attenuation. Geophysical Journal International, 194(3), 1640–1664.
    [Google Scholar]
  7. Robertsson, J.O.A., Blanch, J.O. and Symes, W.W.
    [1994] Viscoelastic finite-difference modeling. Geophysics, 59, 1444–1456.
    [Google Scholar]
  8. Yang, P., Brossier, R., Metivier, L. and Virieux, J.
    [2018] A time-domain preconditioned truncated Newton approach to visco-acoustic multiparameter full waveform inversion. SIAM Journal on Scientific Computing, 40(4), B1101–B1130.
    [Google Scholar]
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