How can CO2 be stored underground?
Compressed CO2 can be injected into porous rock formations below the Earth’s surface using many of the same methods already used by the oil and gas industry. The three main types of geological storage are oil and gas reservoirs, deep saline formations, and un-minable coal beds. CO2 can for instance be physically trapped under a well-sealed rock layer or in the pore spaces within the rock. It can also be chemically trapped by dissolving in water and reacting with the surrounding rocks. Potential geological storage sites exist around the globe both onshore and offshore.
![Photo: #CCSGuide #Question5: How can CO2 be stored underground? Compressed CO2 can be injected into porous rock formations below the Earth’s surface using many of the same methods already used by the oil and gas industry. The three main types of geological storage are oil and gas reservoirs, deep saline formations, and un-minable coal beds. CO2 can for instance be physically trapped under a well-sealed rock layer or in the pore spaces within the rock. It can also be chemically trapped by dissolving in water and reacting with the surrounding rocks. Potential geological storage sites exist around the globe both onshore and offshore.]()
Compressed CO2 can be injected into porous rock formations below the Earth’s surface using many of the same methods already used by the oil and gas industry. The three main types of geological storage are oil and gas reservoirs, deep saline formations, and un-minable coal beds. CO2 can for instance be physically trapped under a well-sealed rock layer or in the pore spaces within the rock. It can also be chemically trapped by dissolving in water and reacting with the surrounding rocks. Potential geological storage sites exist around the globe both onshore and offshore.
