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International audiencePore Network Model (PNM) is used to simulate mass transfer with mineral reaction in asingle phase flow through porous medium which is here a sandstone sample from the reservoirformation of the Pakoslaw gas field. The void space of the porous medium is represented by anidealized geometry of pore-bodies joined by pore-throats. Parameters defining the pore-bodies andthe pore-throats distribution are determined by an optimization process aiming to match theexperimental Mercury Intrusion Capillary Pressure (MICP) curve and petrophysical properties of therock such as intrinsic permeability and formation factor. The generated network is used first tosimulate the multiphase flow by solving Kirchhoff’s laws. The capillary pressure and relativepermeability curves are derived. Then, reactive transport is addressed under asymptotic regimewhere the solute concentration undergoes an exponential evolution with time. The porosity/permeability relationship and the three phenomenological coefficients of transport, namely the solutevelocity, the dispersion and the mean reaction rate are determined as functions of Peclet and Peclet-Damköhler dimensionless numbers. Finally, the role of the dimensionless numbers on the reactiveflow properties is highlighted

Pore to Core Scale Simulation of the Mass Transfer with Mineral Reaction in Porous Media