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Article Dans Une Revue Journal of Applied Geophysics Année : 2016

Prediction of permeability of monodisperse granular materials with a micromechanics approach

Résumé

Prediction of the permeability of porous media is of vital importance to such fields as petroleum engineering, agricultural engineering and civil engineering. The liquid water within unsaturated granular materials is distinguished as the intergranular layer, the wetting layer and the water film. By means of the micromechanics approach, a physical conceptual model is developed to predict the permeability (intrinsic and relative permeabilities) of the monodisperse granular materials. The proposed model has been validated by comparing the available experimental data and the empirical models, and has been used to re-interpret the Kozeny–Carman's relation in particular. The results obtained with this model show that the intergranular water will dominate the flow transport when the saturation degree is higher than the residual saturation degree; when the saturation degree is below the residual saturation degree, the wetting layer will govern the flow transport and the relative permeability will decrease by 3 to 8 orders of magnitude depending on the connectivity of the wetting layer.

Domaines

Matériaux
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Dates et versions

hal-02538172 , version 1 (09-04-2020)

Identifiants

Citer

Rongwei Yang, Éric Lemarchand, Teddy Fen-Chong, Kefei Li. Prediction of permeability of monodisperse granular materials with a micromechanics approach. Journal of Applied Geophysics, 2016, 127, pp.82-90. ⟨10.1016/j.jappgeo.2016.02.005⟩. ⟨hal-02538172⟩
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