1887

Abstract

Summary

The paper develops a reliable numerical method to solve inverse dynamic problem for elastic waves equation on the base of nonlinear least-squares formulation which is widely known as Full Waveform Inversion (FWI). The key issue on this way is correct reconstruction of macrovelocity component of the model with input seismic data without time frequencies less than 5–7Hz and reasonable source-recievers offsets. To provide correct macrovelocity reconstruction we introduce modified elastic FWI formulation which is sensitive to smooth space variations of both Vp- and Vs-velocity distributions

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/content/papers/10.3997/2214-4609.201700508
2017-06-12
2020-03-30
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References

  1. BambergerA., ChaventG., HemonC., LaillyP.
    1982Inversion of normal incidence seismograms. Geophysics47(5), 757–770.
    [Google Scholar]
  2. BunksC., SaleckF.M., ZaleskiS. and ChaventG.
    1995. Multiscale seismic inversion. Geophysics60(05), 1457–1473.
    [Google Scholar]
  3. ClementF., ChaventG. and GomezS.
    2001Migration-based traveltime waveform inversion of 2-D simple structures: A synthetic example, Geophysics, 66, pp. 845–860.
    [Google Scholar]
  4. GauthierO., VirieuxJ., TarantolaA.
    1986Two-dimensional nonlinear inversion of seismic waveforms: Numerical results. Geophysics, 51(7), 1387–1403
    [Google Scholar]
  5. LaillyP.
    1983The seismic inverse problem as a sequence of before stack migrations. Conference on Inverse Scattering: Theory and Application. SIAM. 206–220.
    [Google Scholar]
  6. PrattG., ShinC., HicksG.J.
    1998. Gauss-Newton and full Newton methods in frequency-space seismic waveform inversion. Geophysical Journal International. 133(2) 341–362.
    [Google Scholar]
  7. SirgueL.
    2006. The importance of low frequencies and large offset in waveform inversion. 68th EAGE Technical conference and Exhibition, A037.
    [Google Scholar]
  8. TarantolaA.
    1984. Inversion of seismic reflection data in the acoustic approximation. Geophysics49(08), 1259–1266.
    [Google Scholar]
  9. VirieuxJ., OpertoS.
    2009. An overview of full-waveform inversion in exploration geophysics. Geophysics. 74(6), WCC1–WCC26.
    [Google Scholar]
  10. PlessixR.E., BaetenG., de MaagJ.W., KlaasenM., RujieZ., and ZhifeiT.
    2010Application of acoustic full waveform inversion to a low-frequency large-offset land data set. Expanded abstracts of SEG 80th Annual International Meeting, v.29, 930‒934.
    [Google Scholar]
  11. ProtasovM., TcheverdaV.
    2011. True amplitude imaging by inverse generalized radon transform based on gaussian beam decomposition of the acoustic green’s function. Geophysical prospecting. 59(2), 197–209.
    [Google Scholar]
  12. TcheverdaV., ChaventG. and GadylshinK.
    2016. Macrovelocity reconstruction by reflection FWI. 2016. 78th EAGE Conference & Exhibition, Vienna, Austria, 30 May–2 June 2016. Th SRS2 06.
    [Google Scholar]
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