1887

Abstract

Summary

There is an emerging research field that geological prior constraint and well log data are used for regularizing the full waveform inversion(FWI).We propose a way for building a high-fidelity velocity model that can be put into the FWI framework for inverting nearly perfect velocity structure. We propose to interpolate the velocity structure from multiple well logs. The interpolation is carried out using least-squares method with a structural regularization.The structural regularization is via a local-slope based linear operator. In order to obtain the geological structure of subsurface reflectors, an initial reverse time migration with a fairly smooth velocity model is used to roughly calculate the local slope of subsurface structure. We use the Marmousi velocity model to demonstrate the applicability of the proposed approach. Regarding the field deployment for using the proposed methodology,we suggest a seismic-oriented drilling concept for future oil&gas seismic exploration.

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/content/papers/10.3997/2214-4609.201601548
2016-05-31
2020-05-30
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References

  1. Chen, Y., Chen, H. and Xiang, K.
    [2016] Full waveform inversion with a high-fidelity initial velocity model from geological structure constrained well log interpolation. 78th Annual International Conference and Exhibition, EAGE, Extended Abstracts.
    [Google Scholar]
  2. Chen, Y., Yuan, J., Zu, S., Qu, S. and Gan, S.
    [2015] Seismic imaging of simultaneous-source data using constrained least-squares reverse time migration. Journal of Applied Geophysics, 114, 32–35.
    [Google Scholar]
  3. Fomel, S.
    [2002] Application of plane-wave destruction filters. Geophysics, 67, 1946–1960.
    [Google Scholar]
  4. Gan, S., Wang, S., Chen, Y., Zhang, Y. and Jin, Z.
    [2015] Dealiased seismic data interpolation using seislet transform with low-frequency constraint. IEEE Geoscience and remote sensing letters, 12, 2150–2154.
    [Google Scholar]
  5. Hestenes, M.R. and Stiefel, E.
    [1952] Methods of conjugate gradients for solving linear systems. Journal of Research of the National Bureau of Standards, 49, 409.
    [Google Scholar]
  6. Xue, Z., Chen, Y., Fomel, S. and Sun, J.
    [2016] Seismic imaging of incomplete data and simultaneous-source data using least-squares reverse time migration with shaping regular-ization. Geophysics, 81, S11–S20.
    [Google Scholar]
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