Role of Coupled THMC Processes on Flow and Deformation in Chalk Reservoirs

his study introduces a novel approach to model non-isothermal reactive transport of multiphase flow within deformable chalk porous media, aimed at capturing the significant water weakening effect primarily attributed to sulfate adsorption. This effect is expected to be more pronounced at higher temperatures, as indicated by previous research ( Megawati et al., 2013 ). To achieve this objective, we developed an integrated framework within the Ocean Plugin for Petrel, combining the Eclipse 100 reservoir simulator with the Visage geomechanics simulator. This integrated platform enables the comprehensive analysis of flow, mechanical, and petrophysical property changes induced in chalk formations. We investigate the impact of sulfate adsorption on water weakening across different temperature gradients. Furthermore, we meticulously illustrate the dynamic movement of different fronts, encompassing chemicals, water, and temperature changes.