The CO2FieldLab project: how to adapt a geochemical monitoring strategy to complex geological environments

Abstract : Under the auspices of the CO2FieldLab project, a shallow CO 2 leakage experiment was conducted during the summer in 2011 in Norway . Th is experiment was designed to describe the CO 2 behaviour during an induced leakage, and consisted of an injection in saturated horizons followed by physical/chemical monitoring in both saturated and unsaturated horizons . The leakage site , the Svelvik ridge, is located in the Drammen Fjord, 50 km south - west of Oslo. The injection was performed at a c.a. 20 m depth in heterogeneous glacio - fluviatile formations. We are here focus ing on the results obtained from the geochemical monitoring