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Abstract

Summary

We present a 4D time-lapse Full Waveform Inversion (FWI) case study using a monitor and baseline seismic dataset acquired on the Sunrise SAGD project near Fort McMurray, Alberta. We applied a double-difference FWI method in the 4D study. The double-difference FWI takes the difference between the baseline and monitor seismic waveforms and inverts for velocity differences. We demonstrate the method is stable and less dependent on a starting model's accuracy lacking low frequencies in the FWI seismic input waveform. We also present a processing workflow to prepare input data for FWI. The results show our workflow is practical and efficient and produces the improved imaging of the SAGD steam chamber geometry.

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/content/papers/10.3997/2214-4609.202113199
2021-10-18
2024-06-25
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References

  1. Bian, A., Ni, Y., Zou, Z., and Zhou, H.
    2017, Constrained time-lapse waveform inversion for targeted deep-water exploration: SEG 2107 Workshop: OBN/OBC Technologies and Applications, 79–82
    [Google Scholar]
  2. Crase, E., Pica, A., Noble, M., McDonald, J., and Tarantola, A.
    , 1990, Robust elastic nonlinear waveform inversion: application to real data: Geophysics, 55, no. 5, pp. 527–538.
    [Google Scholar]
  3. Kotsi, M., and Malcolm, A.
    , 2017, A statistical comparison of three 4D Full-Waveform Inversion schemes: SEG International Exposition and 87th Annual Meeting,1434–1438.
    [Google Scholar]
  4. Lumley, D.
    , 2001, Time-lapse seismic reservoir monitoring: Geophysics, Vol. 66, No. 1, 50–53.
    [Google Scholar]
  5. Maharramov, M., Biondi, B. L., and Meadows, M. A.
    , 2016, Time-lapse inverse theory with applications: Geophysics, Vol. 81, No. 6, R485–R501.
    [Google Scholar]
  6. Tarantola, A.
    , 1984, Inversion of seismic reflection data in the acoustic approximation: Geophysics, 49, no. 8, pp. 1259–1266.
    [Google Scholar]
  7. Warner, M., and Guasch, L.
    , 2014, Adaptive waveform inversion: Theory: 84th SEG Technical Program Expanded Abstracts. Society of Exploration Geophysicists, Expanded Abstracts, 1089–1093.
    [Google Scholar]
  8. Zhang, W., and Zhang, J.
    , 2011, Full waveform tomography with consideration for large topography variations, SEG Expended Abstracts30, 2539–2542.
    [Google Scholar]
  9. Zhang, Z., and Huang, L.
    , 2013, Double-difference elastic-waveform inversion with prior information for time-lapse monitoring: Geophysics, Vol. 78, No. 6, R259–R273.
    [Google Scholar]
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