1887

Abstract

Summary

Hydraulic permeability compaction trends in shales are poorly known due to shale diverse mineralogical composition and abundance of clay fraction. The conventional laboratory techniques for permeability measurements are time consuming and often inapplicable to tight rocks such as shales. We demonstrate feasibility and describe the methodology for laboratory acquisition of permeability compaction trends. For the first time, the pressure-oscillation technique is used during experimental mechanical compaction of artificial silt-clay mixtures. We show that reliable permeability compaction trends may be acquired in a short time (two days per a sample). An exponential decay of permeability with the porosity decrease is observed on both compacted samples. Although the acquired permeabilities are in an agreement with porosity-permeability trends of natural shales, further compaction experiments with other clay minerals (e.g. smectite) will allow more accurate modelling of compaction trends of permeability in shales.

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/content/papers/10.3997/2214-4609.201701267
2017-06-12
2020-04-10
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References

  1. Beloborodov, R., Pervukhina, M., Luzin, V., Delle Piane, C., Clennell, M.B., Zandi, S., Lebedev, M.
    , 2016. Compaction of quartz-kaolinite mixtures: The influence of the pore fluid composition on the development of their microstructure and elastic anisotropy. Mar Petrol Geol78, 426–438.
    [Google Scholar]
  2. Bernabé, Y., Mok, U., Evans, B.
    , 2006. A note on the oscillating flow method for measuring rock permeability. Int J Rock Mech Min43, 311–316.
    [Google Scholar]
  3. Fischer, G.J.
    , 1992. Chapter 8 The Determination of Permeability and Storage Capacity: Pore Pressure Oscillation Method, in: Brian, E., Teng-fong, W. (Eds.), International Geophysics. Academic Press, pp. 187–211.
    [Google Scholar]
  4. Hasanov, A.K.
    , 2014. Reservoir transport and poroelastic properties from oscillating pore pressure experiments.
    [Google Scholar]
  5. Keller, L.M., Holzer, L., Wepf, R., Gasser, P., Munch, B., Marschall, P.
    , 2011. On the application of focused ion beam nanotomography in characterizing the 3D pore space geometry of Opalinus clay. Phys Chem Earth36, 1539–1544.
    [Google Scholar]
  6. Kranz, R.L., Saltzman, J.S., Blacic, J.D.
    , 1990. Hydraulic diffusivity measurements on laboratory rock samples using an oscillating pore pressure method. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts27, 345–352.
    [Google Scholar]
  7. Song, I., Renner, J.
    , 2007. Analysis of oscillatory fluid flow through rock samples. Geophys J Int170, 195–204.
    [Google Scholar]
  8. Yang, Y.L., Aplin, A.C.
    , 2010. A permeability-porosity relationship for mudstones. Mar Petrol Geol27, 1692–1697.
    [Google Scholar]
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