1887

Abstract

Summary

Understanding the physical properties of fractures, location, orientation, and geometry is of primary importance in the comprehension of geo-resources and geo-hazards. In doing so seismic waves can be an effective tool for non-invasive investigation of fracture parameters.

We have developed a novel stochastic Full Waveform Fracture Inversion employing Genetic Algorithms (GA-FWFI) to quantify mechanical properties of fractures (fracture-specific stiffnesses) in a synthetic sample. We focus on the inversion of transmitted waves, simulating ultrasonic laboratory data, on a specimen containing 6 horizontal fractures orthogonal to the wave propagation. The inversion results show a good convergence to the solution which best fits the observed data within the maximum number of generations and number of models set.

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/content/papers/10.3997/2214-4609.201901005
2019-06-03
2024-03-28
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References

  1. Cundall, P.A.
    , [1992] Theoretical basis of the program WAVE. Unpublished internal report, COMRO (now Miningtek, CSIR, South Africa), pp.1–12.
    [Google Scholar]
  2. Hildyard, M.W., Daehnke, A. and Cundall, P.A.
    , [1995] WAVE: A computer program for investigating elastodynamic issues in mining. In The 35th US symposium on rock mechanics (USRMS). American Rock Mechanics Association, pp. 519–524.
    [Google Scholar]
  3. Hildyard, M.W.
    , [2007] Manuel Rocha Medal Recipient Wave interaction with underground openings in fractured rock. Rock Mechanics and Rock Engineering, 40(6), pp.531–561.
    [Google Scholar]
  4. Holland, J. H.
    (1975). Adaptation in natural and artificial systems: An introductory analysis with applications to biology, control, and artificial intelligence. Oxford, England: U Michigan Press.
    [Google Scholar]
  5. Liu, E. and Martinez, A.
    , [2012] Seismic fracture characterization. Netherlands: EAGE Publication.
    [Google Scholar]
  6. Pyrak-Nolte, L.J., Myer, L.R. and Cook, N.G.
    , [1990] Anisotropy in seismic velocities and amplitudes from multiple parallel fractures. Journal of Geophysical Research: Solid Earth, 95(B7), pp.11345–11358.
    [Google Scholar]
  7. Pyrak-Nolte, L.J. and Nolte, D.D.
    , [2016] Approaching a universal scaling relationship between fracture stiffness and fluid flow. Nature communications, 7, p.10663.
    [Google Scholar]
  8. Sambridge, M. and Drijkoningen, G.
    , [1992] Genetic algorithms in seismic waveform inversion. Geophysical Journal International, 109(2), pp.323–342.
    [Google Scholar]
  9. Sayers, C.M.
    , [2007] Introduction to this special section: Fractures. The Leading Edge, 26(9), pp.1102–1105.
    [Google Scholar]
  10. Schoenberg, M.
    , [1980] Elastic wave behavior across linear slip interfaces. The Journal of the Acoustical Society of America, 68(5), pp.1516–1521.
    [Google Scholar]
  11. Schoenberg, M. and Sayers, C.M.
    , [1995] Seismic anisotropy of fractured rock. Geophysics, 60(1), pp.204–211.
    [Google Scholar]
  12. Virieux, J. and Operto, S.
    , [2009] An overview of full-waveform inversion in exploration geophysics. Geophysics, 74(6), pp.WCC1–WCC26.
    [Google Scholar]
  13. Worthington, M.
    , [2007] The compliance of macrofractures. The Leading Edge, 26(9), pp.1118–1122.
    [Google Scholar]
  14. Worthington, M.H. and Lubbe, R.
    , [2007] The scaling of fracture compliance. Geological Society, London, Special Publications, 270(1), pp.73–82.
    [Google Scholar]
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