Porosity and permeability evolution and evaluation in anisotropic porosity multiscale-multiphase-multicomponent structure |
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| Authors: | BoJing Zhu HuiHong Cheng YanChao Qiao Chang Liu YaoLin Shi Kai Zhang DongSheng Sun WeiRen Lin |
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| Affiliation: | [1]Key Laboratory of Computational Geodynamics, Chinese Academy of Sciences; College of Science, Graduate University of Chinese Academy of Sciences, Beijing 100049, China; [2]Laboratoire De Geologie, Ecole Normale Sup6rieure, 24 Rue Lhomond, 75231 Paris CEDEX 5, France; [3]Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; [4]Geological Mechanics Institute, Chinese Academy of Geological Sciences, Beijing 100081, China; [5]Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi 783-8502, Japan |
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| Abstract: | Based on the hybrid hypersingular integral equation-lattice Boltzmann methods (HHIE-LBM), the porosity and permeability evolution and evaluation process in anisotropic saturated porosity multiscale-multiphase-multicomponent (ASP-MS-MP-MC) structures under ultra high temperature and pressure conditions was analyzed on parallel CPU and GPU platforms. First, virtual physical models at multi-spatial scales (2 μm, 5 μm and 10 μm) were restructured by computerized microtomography technology and data. Second, using HHIE-LBM methods, the anisotropic porosity and permeability tensor at core level and pore level under ultra high temperature and pressure conditions were calculated. Third, the evolution and evaluation process of the porosity and permeability as a function of multi temporal spatial scales was investigated. Finally, the relationship between porosity and permeability and ASP-MS-MP-MC structures (micro-meso-macro-scale) was explored. |
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| Keywords: | porosity and permeability tensor anisotropic saturated porosity multiscale-multiphase.multicomponent structures hypersingular integral equation method lattice Boltzmann method ultra temperature and pressure parallel CPU and GPU |
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