Aquistore: Year One – Injection, Data, Results

Abstract Aquistore is an independent research project managed by the PTRC demonstrating the storage of carbon dioxide (CO 2 ) deep underground in a brine sandstone formation. Results from the baseline MMV program are compared with measurements after the injection of 36,000 tonnes of CO 2 . Surface seismic results indicated excellent repeatability with baseline surveys; the data achieved a global NRMS of 10%, allowing for the detection of small amounts of CO 2 at significant depths. Passive seismic monitoring detected no injection-induced seismicity. Post-injection groundwater and soil gas sampling was relatively unchanged, and indicate there are no signs of seepage of CO 2 at the site.