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Article Dans Une Revue Frontiers in Physics Année : 2020

Dissolution Phase Diagram in Radial Geometry

Résumé

Fractures play an important role as flow paths in porous media. When an undersaturated reactive fluid is flowing in a fracture, the dissolution process will alter the flow paths locally. Dissolution patterns grow slowly, but they may lead to a dramatic reorganization of the flow. Here, we study dissolution in a radial geometry, which is relevant for a number of practical applications, e.g., the acidization of oil reservoirs. Different dissolution patterns are presented in a phase diagram with the Péclet and Damköhler numbers as parameters. We also analyze quantitatively the density of wormholes and the relation between the aperture roughness and the ramified patterns.
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hal-03011085 , version 1 (17-11-2020)

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Le Xu, Piotr Szymczak, Renaud Toussaint, Eirik G. Flekkøy, Knut J. Måløy. Dissolution Phase Diagram in Radial Geometry. Frontiers in Physics, 2020, 8, pp.369. ⟨10.3389/fphy.2020.00369⟩. ⟨hal-03011085⟩
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