Effect of CO2 on the integrity of well cement examined
Tuesday, March 5, 2013 - 09:30
in Earth & Climate
Geologic carbon storage is the separation and capture of carbon dioxide (CO2) from large stationary sources, such as power plants, followed by injection into deep geologic formations. Long-term storage of CO2 pre-supposes very low or no leakage from the formation. The majority of locations that are being considered for CO2 injection are in areas that have a history of oil, natural gas, and/or coalbed methane production, and are typically penetrated by a significant number of wells from exploration and production. The ability to effectively store large quantities of CO2 may be compromised by the presence of these active or abandoned wells, which represent potential leakage paths.