CO2 storing capacity in geologic formations in the Czech Republic

One of causes of global warming is carbon dioxide emission and its concentration in the atmosphere. The reduction of anthropogenic CO2 emission to the atmosphere may stop this process. The emissions can be reduced with the carbon dioxide sequestration, i.e. its capturing or separation followed by storing. This process is called Carbon Capture and Storage (CCS). One of the applied solutions related to CO2 storage is deposition underground. Geological sequestration of CO2 lies in its deposition in deep geological structures. The basic condition deciding about the possibility of deposition of CO2 underground is the presence of sedimentary rocks of considerable thickness and extent, having good collecting properties and covered with an insulating caprock. Such conditions are met by depleted deposits of hydrocarbons. The CO2 injection into reservoir rocks is a known practice applied for reservoir rocks to improve the degree of oil recovery (EOR – Enhanced Oil Recovery) in the oil industry for tens of years. Therefore, CO2 can be freely injected into deep geological layers to limit its emissions to the atmosphere.