Pore network modelling to determine the transport properties in presence of a reactive fluid: From pore to reservoir scale

Clément Varloteaux (1) , Samir Bekri (1) , Pierre M. Adler (2)

1 IFPEN - IFP Energies nouvelles
2 SISYPHE - Structure et fonctionnement des systèmes hydriques continentaux

The study of CO2 sequestration evolution during a reservoir storage project depends on the accurate determination of three macroscopic parameters governing the solute displacement, namely the solute velocity, the dispersion and the mean reaction rate. These parameters are computed for a surface reaction by a pore network modelling technique. A pore network, extracted from micro tomography images is used in order to calculate the macroscopic transport parameters and porosity-permeability evolution during reactive transport as functions of the dimensionless numbers characterizing the reaction and flow rate regimes. Finally, the influence of these macroscopic parameters on CO2 plume evolution is studied for a synthetic reservoir field. (C) 2012 Elsevier Ltd. All rights reserved.

Mots clés: Reactive transport; Pore network model; Reservoir simulator; Dissolution; Precipitation; CO2 sequestration

Domaines: Géophysique [physics.geo-ph]

Clément Varloteaux, Samir Bekri, Pierre M. Adler. Pore network modelling to determine the transport properties in presence of a reactive fluid: From pore to reservoir scale. Advances in Water Resources, 2013, 53, pp.87-100. ⟨10.1016/j.advwatres.2012.10.004⟩. ⟨hal-01196663⟩