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Accueil du site > Évènements > Séminaires > Séminaires IRPHE > Archives IRPHE > 2015

Vendredi 11 Décembre 2015 / IRPHE

publié le

Séminaire régulier IRPHE

A discrete-domain description of multiphase flow in porous media : Rugged energy landscapes and the origin of hysteresis

Orateur : Luis Cueto Felgueroso
Universidad politécnica de Madrid

Abstract : We propose a discrete-domain model to describe mesoscale (many-pore) immiscible displacements in porous media. We conceptualize the porous medium and fluid system as a set of weakly connected multistable compartments. The overall properties of the system emerge from the small-scale compartment dynamics. Our model aims at capturing the rugged energy landscape of multiphase porous media systems, emphasizing the role of metastability and local equilibria in the origin of hysteresis. Under two-phase displacements, the system behaves hysteretically, but our description does not rely on past saturations, turning points, or drainage/imbibition labels. We characterize the connection between micro-metastability and overall system behavior, and elucidate the different nature of pressure-controlled and rate-controlled immiscible displacements in porous media.

Date et lieu : le Vendredi 11 Décembre 2015 à 11h00, salle de séminaires IRPHE