1.2.3 CO2 storage
CO2 can be stored into a deep underground both saline aquifer and a petroleum reservoir and if will be injected as a supercritical fluid at an approximate deep of 800 m. or more at 31.1 ˚c and 73.8 bar, CO2 can be changed from liquid to supercritical fluid. In addition a volume of CO2 is much denser than gaseous on a surface (Holloway and van der Straaten, 1995; Cook et al., 2000).