Abstract:
The present study relates to CO2 leakage from the deep subsurface towards the atmosphere. Work involved writing a computer code to study the impact of different sampling strategies and densities on the capability of a gas flux survey to find and quantify the leakage of CO2, with simulations being performed using both synthetic and real data. In addition, the potential impact of a CO2 leak on drinking water quality was studied by measuring groundwater chemistry along a transect through a major natural CO2 leakage area. The research detailed here relates to both natural leaking systems as well as to man-made systems where leakage may hypothetically occur (such as carbon capture and storage, CCS, projects).
