1887

Abstract

Summary

In this study, using the framework of the Full Waveform Inversion (FWI) method we compare three different multicomponent cost-functions : the conventional multicomponent cost-function, a cost-function based on the normalized particle motion and a cost function only sensitive to the particle motion polarization.

With a synthetic test, it is showed that even if the attenuation model is poorly estimated the normalized particle motion misfit function and the polarization based cost functions are able to accurately recover the shear wave velocity parameters whereas the conventional multicomponent misfit function fails. Furthermore in context of near surface imaging, the proposed polarization based cost-function has the advantage to have a great sensitivity to the near-surface and to be independent of the knowledge of the source wavelet.

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/content/papers/10.3997/2214-4609.201413533
2015-06-01
2024-04-20
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References

  1. Boore, D.M. and Nafi Toksoz, M.
    [1969] Rayleigh wave particle motion and crustal structure. Bulletin of the Seismological Society of America, 59(1), 331–346.
    [Google Scholar]
  2. Brossier, R.
    [2011] Two-dimensional frequency-domain visco-elastic full waveform inversion: Parallel algorithms, optimization and performance. Computers & Geosciences, 37(4), 444 – 455, ISSN 0098-3004, doi:10.1016/j.cageo.2010.09.013.
    [Google Scholar]
  3. Bunks, C., Saleck, F.M., Zaleski, S. and Chavent, G.
    [1995] Multiscale seismic waveform inversion. GEOPHYSICS, 60(5), 1457–1473, doi:10.1190/1.1443880.
    [Google Scholar]
  4. Groos, L., Schäfer, M., Forbriger, T. and Bohlen, T.
    [2014] The role of attenuation in 2d full-waveform inversion of shallow-seismic body and rayleigh waves. GEOPHYSICS, 79(6), R247–R261, doi:10.1190/geo2013-0462.1.
    [Google Scholar]
  5. Mulder, W.A. and Hak, B.
    [2009] An ambiguity in attenuation scattering imaging. Geophysical Journal International, 178(3), 1614–1624, ISSN 1365-246X, doi:10.1111/j.1365-246X.2009.04253.x.
    [Google Scholar]
  6. Operto, S. et al.
    [2013] A guided tour of multiparameter full-waveform inversion with multicomponent data: From theory to practice. The Leading Edge, 32(9), 1040–1054, doi:10.1190/tle32091040.1.
    [Google Scholar]
  7. Pratt, R.G. and Worthington, M.H.
    [1990] Inverse theory applied to multi-source cross-hole tomography. part 1: Acoustic wave-equation method. Geophysical Prospecting, 38, 287–310.
    [Google Scholar]
  8. Tarantola, A.
    [1986] A strategy for nonlinear elastic inversion of seismic reflection data. Geophysics, 51, 1893–1903.
    [Google Scholar]
  9. Valensi, R., Brossier, R., Baltazart, V., Leparoux, D., Bretaudeau, F. and Cote, P.
    [2015] A new kind of polarization-based misfit function: Theoretical formulation and application to full waveform inversion. 77th EAGE Conference & Exhibition 2015, Madrid.
    [Google Scholar]
  10. Virieux, J. and Operto, S.
    [2009] An overview of full-waveform inversion in exploration geophysics. Geophysics, 74(6), WCC127–WCC152.
    [Google Scholar]
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