Injectivity Impairment Due to Dissolution/Precipitation Processes During a CO2 Injection

A16 Injectivity Impairment Due to Dissolution/ Precipitation Processes During a CO2 Injection J.-M. Lombard* (Institut Français du Pétrole) P. Egermann (Institut Français du Pétrole) O. Vizika (Institut Français du Pétrole) S. Bekri (Institut Français du Pétrole) & B. Bazin (Institut Français du Pétrole) SUMMARY Keeping the well injectivity over the lifetime of CO2 geological storage operations is crucial for the environmental technical and economical success of such projects. The specificity of a CO2 injection compared to a conventional hydrocarbon gas injection is the possibility for geochemical reactions to occur between the mobile reactive brine and the host formation. This leads