Developments since 2005 in understanding potential environmental impacts of CO2 leakage from geological storage

Online Monitoring of Geological CO2 Storage and Leakage Based on Wireless Sensor Networks

A remote online carbon dioxide (CO2) concentration monitoring system is developed, based on the technologies of wireless sensor networks, in allusion to the gas leakage monitoring requirement for CO2 capture and storage. The remote online CO2 monitoring system consists of monitoring equipment, a data center server, and the clients. The monitoring equipment is composed of a central processing un...

Potential impacts of leakage from deep CO2 geosequestration on overlying freshwater aquifers.

Carbon Capture and Storage may use deep saline aquifers for CO(2) sequestration, but small CO(2) leakage could pose a risk to overlying fresh groundwater. We performed laboratory incubations of CO(2) infiltration under oxidizing conditions for >300 days on samples from four freshwater aquifers to 1) understand how CO(2) leakage affects freshwater quality; 2) develop selection criteria for deep ...

Potential Impacts of Leakage from Deep CO2 Geosequestration on Overlying Freshwater Aquifers

The potential impacts of CO2 on freshwater aquifers outlined by Little and Jackson, 2010 appear, incorrectly, to slay all hope of storing CO2 below ground and retaining safe drinking waters. Without doubt the effects of CO2 addition to drinking water aquifers deserve careful investigation. However, the experiments preformed by Little and Jackson are fatally flawed and there are a number of misl...

Comment on "Potential impacts of leakage from deep CO2 geosequestration on overlying freshwater aquifers".

Impacts of thermally induced stresses on fracture stability during geological storage of CO2

Geomechanical stability issues may arise due to induced thermal stresses because CO2 will generally reach the storage formation at a temperature lower than that of the reservoir. Cold injection will form a cold region around the injection well, which will induce thermal stress reduction. We simulate cold CO2 injection in deep saline formations in a normal faulting stress regime and investigate ...