scholarly journals EVOLUTION OF PERMEABILITY IN SILICEOUS ROCKS INDUCED BY MINERAL DISSOLUTION AND PRECIPITATION

2007 ◽  
Vol 63 (4) ◽  
pp. 1091-1100 ◽  
Author(s):  
Hideaki YASUHARA ◽  
Naoki KINOSHITA ◽  
Hiroshi KURIKAMI ◽  
Shinichiro NAKASHIMA ◽  
Kiyoshi KISHIDA
Keyword(s):  
Mineral Dissolution ◽  
Siliceous Rocks ◽  
Dissolution And Precipitation ◽  
Mineral Dissolution And Precipitation

scholarly journals Upscaling Strategies of Porosity-Permeability Correlations in Reacting Environments from Pore-Scale Simulations

Geofluids ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Nikolaos I. Prasianakis ◽  
Michael Gatschet ◽  
Aida Abbasi ◽  
Sergey V. Churakov
Keyword(s):  
Temporal Evolution ◽  
A Priori ◽  
Mineral Dissolution ◽  
Pore Scale ◽  
Field Scale ◽  
Chemical Gradients ◽  
The Media ◽  
Dissolution And Precipitation ◽  
Structural Heterogeneities ◽  
Mineral Dissolution And Precipitation

In geochemically reacting environments, the mineral dissolution and precipitation alters the structural and transport properties of the media of interest. The chemical and structural heterogeneities of the porous media affect the temporal evolution of the permeability with respect to porosity. Such correlations follow a nonlinear trend, which is difficult to estimate a priori and without knowledge of the microstructure itself, especially under the presence of strong chemical gradients. Macroscopic field-scale codes require such an input, and in the absence of exact descriptions, simplified correlations are used. After highlighting the diversity of microstructural evolution paths, due to dissolution, we discuss possible upscaling strategies.

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