Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Macroscopic Deformation Moduli of Porous Rocks: Insights from Digital Image Pore-Scale Simulations
Poroelastic moduli of rocks are difficult to measure in the laboratory setting. Digital rock technology has the potential to support the interpretation of laboratory results and to provide insights into pore-scale deformation patterns. We apply a digital rock workflow to images obtained for a sand pack to estimate the Biot coefficient and the drained pore modulus by exploiting its relation to the drained bulk modulus and the solid phase bulk modulus. Comparison with measured values of sandstone of similar porosities indicate that the simulated value of the Biot coefficient is plausible but the drained pore modulus appears too high. The reason for this discrepancy is likely the existence of compliant grain contact areas in rocks which are not properly resolved in the digitized images of the sand pack.
Macroscopic Deformation Moduli of Porous Rocks: Insights from Digital Image Pore-Scale Simulations
Poroelastic moduli of rocks are difficult to measure in the laboratory setting. Digital rock technology has the potential to support the interpretation of laboratory results and to provide insights into pore-scale deformation patterns. We apply a digital rock workflow to images obtained for a sand pack to estimate the Biot coefficient and the drained pore modulus by exploiting its relation to the drained bulk modulus and the solid phase bulk modulus. Comparison with measured values of sandstone of similar porosities indicate that the simulated value of the Biot coefficient is plausible but the drained pore modulus appears too high. The reason for this discrepancy is likely the existence of compliant grain contact areas in rocks which are not properly resolved in the digitized images of the sand pack.
Macroscopic Deformation Moduli of Porous Rocks: Insights from Digital Image Pore-Scale Simulations
Ahmed, Shakil (Autor:in) / Müller, Tobias M. (Autor:in) / Liang, Jiabin (Autor:in) / Tang, Genyang (Autor:in) / Madadi, Mahyar (Autor:in)
Sixth Biot Conference on Poromechanics ; 2017 ; Paris, France
Poromechanics VI ; 815-821
06.07.2017
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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