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Abstract

Summary

Anisotropic elastic properties of shales are important for understanding of shale compaction trends, improved seismic to well tie, non-hyperbolic moveout correction, and serve as a baseline for predicting properties of organic-rich shales. However, no predictive models of elastic properties of shale have been developed so far due to a multiparametric nature of such modelling problem and the fact that effects of some parameters of shales are poorly understood. The large

number of parameters required for prediction of elastic properties of shales stems frommulticomponent nature of these rocks, as shales are composite media comprising clay particles of different mineralogy and silt. The complexity of the system is complemented with the pores of micro to nano-scale, which shape and orientation is poorly understood. In this study, we use the elastic moduli of two artificially compacted samples with controlled composition and porosity to understand the parameters that affect elastic properties of shales and to establish a predictive modelling workflow. We invert the elastic properties of an individual kaolinite particle and perform a forward modelling taking into account the effect of reorientation of particles due to compaction, the effect of porosity reduction, the effect of silt fraction and the properties of contacts between particles.

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/content/papers/10.3997/2214-4609.201900806
2019-06-03
2024-04-28

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References

  1. Alexandrov, K.S. and Ryzhova, T.V.
    [1961] Elastic properties of rock-forming minerals. II. Layered silicates. Bulletin of the Academy of Sciences of the U.S.S.R.,Geophysics Series, 9, 1165–1168.
     [Google Scholar]
  2. Bayuk, I.O., Ammerman, M. and Chesnokov, E.M.
    [2007] Elastic moduli of anisotropic clay. Geophysics, 72(5), D107–D117.
     [Google Scholar]
  3. Beloborodov, R., Pervukhina, M., Luzin, V., Delle Piane, C., Clennel, M.B., Zandi, S. and Lebedev, M.
    [2016] Compaction of quartz-kaolinite mixtures: The influence of the pore fluid composition on the development of their microstructure and elastic anisotropy. Marine and Petroleum Geology, 78, 426–438.
     [Google Scholar]
  4. Beloborodov, R., Pervukhina, M. and Lebedev, M.
    [2018] Compaction trends of full stiffness tensor and fluid permeability in artificial shales. Geophysical Journal International, 212(3), 1687–1693.
     [Google Scholar]
  5. Ebrahimi, D., Pellenq, R.J.-M. and Whittle, A.J.
    [2012] Nanoscale Elastic Properties of Montmorillonite upon Water Adsorption. Langmuir, 28(49), 16855–16863.
     [Google Scholar]
  6. Holt, R.M. and Kolsto, M.I.
    [2017] How does water near clay mineral surfaces influence the rock physics of shales?Geophysical Prospecting, 65, 1615–1629.
     [Google Scholar]
  7. Hornby, B.E., Schwartzt, L.M. and Hudson, J.A.
    [1994] Anisotropic effective-medium modeling of the elastic properties of shales. Geophysics, 59(10), 1570–1583.
     [Google Scholar]
  8. Militzer, B., Wenk, H.-R., Stackhouse, S. and Stixrude, L.
    [2011] First-principles calculation of the elastic moduli of sheet silicates and their application to shale anisotropy. American Mineralogist, 96(1), 125–137.
     [Google Scholar]
  9. Ortega, J.A., Ulm, F., Abousleiman, Y.
    [2007] The effect of the nanogranular nature of shale on their poroelastic behaviour. Acta Geotechnica, 2(3), 155–182.
     [Google Scholar]
  10. Pervukhina, M., Dewhurst, D., Gurevich, B., Kuila, U., Siggins, T., Raven, M. and Nordgård Bolås, H.M.
    [2008] Stress-dependent elastic properties of shales: Measurement and modeling. The Leading Edge, 27(6), 772–779.
     [Google Scholar]
  11. Pervukhina, M., Gurevich, B., Golodoniuc, P. and Dewhurst, D.N.
    [2011] Parameterization of elastic stress sensitivity in shales. Geophysics, 76(3), WA147–WA155.
     [Google Scholar]
  12. Sayers, C.
    [2005] Seismic anisotropy of shales. Geophysical Prospecting, 53, 667–676.
     [Google Scholar]
  13. Sayers, C.M. and den Boer, L.D.
    [2016] The elastic anisotropy of clay minerals. Geophysics, 81(5), C193–C203.
     [Google Scholar]
  14. Yurikov, A., Lebedev, M., Pervukhina, M. and Gurevich, B.
    [2018] Water retention effects on elastic properties of Opalinus shale. Geophysical Prospecting, doi: 10.1111/1365‑2478.12673
     https://doi.org/10.1111/1365-2478.12673 [Google Scholar]
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Multiparametric Modelling of Anisotropic Elastic Properties of Shales
Conference Proceedings 2019, 1 (2019); https://doi.org/10.3997/2214-4609.201900806
/content/papers/10.3997/2214-4609.201900806
/content/papers/10.3997/2214-4609.201900806
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