Permeability variation with fracture dissolution: Role of diffusion vs. drift

Supti Sadhukhan, Dibendyu Mal, Tapati Dutta and S. Tarafdar

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 18, 4541-4546

Abstract: Pores and fractures in rocks are continually being reshaped through different chemical and physical processes. Fluids filling the pore space carry the different chemical species responsible for these changes. In the present work we study the relative effects of drift and diffusion of these particles, through a random walk. A bias imposed on the walker determines the competition between drift and diffusion, i.e. to a variation of the Peclet number. We find that the pore structure and hence permeability depends strongly on the bias.

Keywords: Permeability; Porous media; Random walk; Peclet number (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:18:p:4541-4546

DOI: 10.1016/j.physa.2008.03.026

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