Managing the risk of CO2 leakage from deep saline aquifer reservoirs through the creation of a hydraulic barrier

A prerequisite to the wide deployment of CO2 geological storage at an industrial scale is demonstrating that potential risks can be efficiently managed, which includes deploying an adequate monitoring during the injection phase and having intervention plans ready in case of major irregularity. This paper considers the injection of CO2 into a saline formation linked to a shallower aquifer through a leaky pathway. Brine, possibly followed by CO2,...