Some of the CO2Carbon dioxide will dissolve into the formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it waterWater that occurs naturally within the pores of rock formations as it migrates through the formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it. Simulation results show that up to 30% of the injected CO2Carbon dioxide may dissolve in formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it waterWater that occurs naturally within the pores of rock formations over tens of years (Doughty et al., 20012001 - C. Doughty, K. Pruess, S. M. Benson, S. D. Hovorka, P. R. Knox and C. T. GreenCapacity investigation of brine-bearing sands of the Frio Formation for geologic sequestration of CO2, Proceedings of First National Conference on Carbon Sequestration, 14-17 May 2001, Washington, Dsee more). Large scale models suggest that the injected CO2Carbon dioxide will eventually dissolve in formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it waterWater that occurs naturally within the pores of rock formations over centuries (McPherson and Cole, 20002000 - B. J. O. L. McPherson and B. S. ColeMultiphase CO2 flow, transport and sequestration in the Powder River basin, Wyoming, USAsee more; Ennis-King et al., 20032003 - J. Ennis-King, C. M. Gibson-Poole, S. C. Lang and L. PatersonLong-term numerical simulation of geological storage of CO2 in the Petrel sub-basin, North West Australia,see more). It will take much longer for CO2Carbon dioxide to be completely dissolved, if there is no flow of formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it waterWater that occurs naturally within the pores of rock formations because of reduced contact with unsaturated formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it waterWater that occurs naturally within the pores of rock formations. Water saturated with CO2Carbon dioxide is slightly denser than fresh formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it waterWater that occurs naturally within the pores of rock formations, depending on salinity. ReservoirA subsurface body of rock with sufficient porosityMeasure for the amount of pore spaceSpace between rock or sediment grains that can contain fluids in a rock and permeabilityAbility to flow or transmit fluids through a porous solid such as rock to store and transmit fluids studies and simulations have shown that the denser CO2Carbon dioxide-saturated brine will eventually sink(CO2Carbon dioxide) The natural uptake of CO2Carbon dioxide from the atmosphereThe layer of gases surrounding the earth; the gases are mainly nitrogen (78%) and oxygen (around 21%), typically in soils, forests or the oceans, which may trigger free convection and thus enhance the CO2Carbon dioxide dissolution process (Lindeberg and Bergmo, 2003).
Solubility of CO2Carbon dioxide in brine decreases with increasing pressure, decreasing temperature and increasing salinity. Calculations indicate that, depending on the salinity and depth, 20-60 kg CO2Carbon dioxide can dissolve in 1 m3 of formationA body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it fluid (Holt et al., 19951995 - T. Holt, J. L. Jensen and E. LindebergUnderground storage of CO2 in aquifers and oil reservoirssee more; Koide et al., 19951995 - H. G. Koide, M. Takahashi and H. TsukamotoSelf-trapping mechanisms of carbon dioxidesee more).