1887

Abstract

Summary

We apply scanning SAXS and WAXS microscopy to different mudrock samples. The method characterizes the microstructure in terms of porosity and preferential pore alignment of small pores 6 −202 nm size. These small features are experimentally challenging to resolve for statistically relevant sample volumes with state of the art characterization techniques, such as imaging methods. A key novelty in this study is the quantification of the mineralogy and mineral phase content from the WAXS measurements. Thus, a detailed quantification and comparison of important microstructural parameters is achieved. The method is used in a raster scanning mode, where thousands of consecutive measurements are performed, with a high micrometric spatial resolution, over mm sized sample areas. Therefore, simultaneously the variation of the microstructure is resolved on the pore and lamina scale. We propose to use scanning SAXS-WAXS microcopy in future studies for investigations of the systematic relationships between mineralogy and the pore network.

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/content/papers/10.3997/2214-4609.201900311
2019-04-28
2024-03-28
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References

  1. Anovitz, L.M., Cole, D.R.
    , 2015. Characterization and Analysis of Porosity and Pore Structures. Reviews in Mineralogy and Geochemistry80, 61–164.
    [Google Scholar]
  2. Aplin, A.C., Matenaar, I.F., McCarty, D.K., van der Pluijm, B.A.
    , 2006. Influence of Mechanical Compaction and Clay Mineral Diagenesis on the Microfabric and Pore-Scale Properties of Deep-Water Gulf of Mexico Mudstones. Clays and Clay Minerals54, 500–514.
    [Google Scholar]
  3. Bunk, O., Bech, M., Jensen, T.H., Feidenhans'l, R., Binderup, T., Menzel, A., Pfeiffer, F.
    , 2009. Multimodal X-ray Scatter Imaging. New Journal of Physics11, 1–8.
    [Google Scholar]
  4. Doebelin, N., Kleeberg, R.
    , 2015. Profex: A Graphical User Interface for the Rietveld Refinement Program BGMN. Journal of Applied Crystallography48, 1573–1580.
    [Google Scholar]
  5. Gu, X., Cole, D.R., Rother, G., Mildner, D.F.R., Brantley, S.L.
    , 2015. Pores in Marcellus Shale: A Neutron Scattering and FIB-SEM Study. Energy & Fuels29, 1295–1308.
    [Google Scholar]
  6. Hemes, S., Desbois, G., Urai, J.L., Schröppel, B., Schwarz, J.-O.
    , 2015. Multi-Scale Characterization of Porosity in Boom Clay (HADES-level, Mol, Belgium) using a Combination of X-ray μ-CT, 2D BIB-SEM and FIB-SEM Tomography. Microporous and Mesoporous Materials208, 1–20.
    [Google Scholar]
  7. Kanitpanyacharoen, W., Kets, F.B., Wenk, H.-R., Wirth, R.
    , 2012. Mineral Preferred Orientation and Microstructure in the Posidonia Shale in Relation to Different Degrees of Thermal Maturity. Clays and Clay Minerals60, 315–329.
    [Google Scholar]
  8. Lee, S., Fischer, T.B., Stokes, M.R., Klingler, R.J., Ilavsky, J., McCarty, D.K., Wigand, M.O., Derkowski, A., Winans, R.E.
    , 2014. Dehydration Effect on the Pore Size, Porosity, and Fractal Parameters of Shale Rocks: Ultrasmall-Angle X-ray Scattering Study. Energy & Fuels28, 6772–6779.
    [Google Scholar]
  9. Leu, L., Georgiadis, A., Blunt, M.J., Busch, A., Bertier, P., Schweinar, K., Liebi, M., Menzel, A., Ott, H.
    , 2016. Multiscale Description of Shale Pore Systems by Scanning SAXS and WAXS Microscopy. Energy & Fuels30, 10282–10297.
    [Google Scholar]
  10. Prescher, C., Prakapenka, V.
    , 2015. DIOPTAS: A Program for Reduction of Two-Dimensional X-ray Diffraction Data and Data Exploration. High Pressure Research35, 223–230.
    [Google Scholar]
  11. Todt, J., Hammer, H., Sartory, B., Burghammer, M., Kraft, J., Daniel, R., Keckes, J., Defregger, S.
    , 2016. X-ray Nanodiffraction Analysis of Stress Oscillations in a W Thin Film on Through-silicon via. Journal of Applied Crystallography49, 182–187.
    [Google Scholar]
  12. Wenk, H.-R., Kanitpanyacharoen, W., Voltolini, M.
    , 2010. Preferred Orientation of Phyllosilicates: Comparison of Fault Gouge, Shale and Schist. Journal of Structural Geology32, 478–489.
    [Google Scholar]
  13. Wenk, H.-R, Voltolini, M., Mazurek, M., Van Loon, L.R., Vinsot, A.
    , 2008. Preferred Orientations and Anisotropy in Shales: Callovo-Oxfordian Shale (France) and Opalinus Clay (Switzerland). Clays and Clay Minerals56, 285–306.
    [Google Scholar]
  14. Zhang, F., Ilavsky, J., Long, G.G., Quintana, J.P.G., Allen, A.J., Jemian, P.R.
    , 2010. Glassy Carbon as an Absolute Intensity Calibration Standard for Small-Angle Scattering. Metallurgical and Materials Transactions A41, 1151–1158.
    [Google Scholar]
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