Geochemical assessment of the injection of CO2 into Rousse depleted gas reservoir

Abstract

The geochemical modeling of the injection of CO2 into Rousse reservoir was performed in three steps: -Combination of X Ray Diffraction and Fluorescence data in order to establish the initial mineralogy-Construction of a batch thermodynamical model to evaluate the effect of CO2 injection-Development of a 3D coupled reservoir and geochemical model to investigate the variation of reactive processes in space and time. The main chemical impact expected from the CO2 injection is the dissolution of significant amounts Chlorite and consecutive precipitation of Siderite, leading to the mineralization of most of the injected CO2. © 2009 Elsevier Ltd. All rights reserved.