Organizers: Prof. Jean-Michel Pereira, École des Ponts ParisTech
CO2 capture and geological storage is considered as one of the most promising technologies to reduce CO2 emissions into the atmosphere and thus mitigate greenhouse gases effects on global warming. For efficiency reasons, CO2 has to be injected deep enough (typically below 1000m deep) to reach a supercritical state. Targeted host rocks should also have good properties in terms of injectivity and available porosity. The scientific issues to be tackled involve fluids flow problems and reactive transport problems associated with the chemical activity of CO2 in aqueous solution but mechanical considerations (e.g. fault reactivation, chemical degradation of the rocks, fluid pressure changes, including drying of rocks, caprock evolution) could also play a major role in the applicability of this technology. The aim of this mini-symposium is to gather scientists interested in geophysical, geochemical and/or geomechanical issues related to CO2 geological storage. Experimental, theoretical and numerical contributions are welcome.