Upscaling strategies of porosity-permeability correlations in reacting environments from pore-scale simulations

Prasianakis, Nikolaos; Gatschet, Michael; Abbasi, Aida; Churakov, Sergey (2018). Upscaling strategies of porosity-permeability correlations in reacting environments from pore-scale simulations. Geofluids, 2018, pp. 1-8. Hindawi 10.1155/2018/9260603

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences > Mineralogy
08 Faculty of Science > Institute of Geological Sciences

UniBE Contributor:

Churakov, Sergey

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

1468-8115

Publisher:

Hindawi

Language:

English

Submitter:

Sergey Churakov

Date Deposited:

19 Sep 2019 12:46

Last Modified:

02 Nov 2019 17:35

Publisher DOI:

10.1155/2018/9260603

BORIS DOI:

10.7892/boris.130147

URI:

https://boris.unibe.ch/id/eprint/130147

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