Monitoring

The stored carbon dioxide can be monitored using an array of direct and remote-sensing technologies on or above the surface of the Earth and in the borehole. The technologies record properties such as pressure, temperature, electrical resistivity and sound responses in injection and observation wells. Other monitoring involves seismic, microseismic and petrophysical well logs and geophysical sampling to track movement of carbon dioxide under the ground before, during and after injection.
 
Baseline surveys of the distribution, type and origin of any existing carbon dioxide in a potential storage site is carried out through soil-gas sampling and other analyses. Geochemical sampling at the surface allows rapid detection of any seepage or leakage, in the unlikely event that this occurs.

Learn about the Otway Project monitoring program