InjectionThe process of using pressure to force fluids down wells of CO2Carbon dioxide in a geological medium results in pore pressure changes, which in turn affects the stress-state. The change in geomechanical conditions may have adverse effects on the stability of the storage(CO2) A process for retaining captured CO2, so that it does not reach the atmosphere reservoirA subsurface body of rock with sufficient porosity and permeability to store and transmit fluids. A good understanding of the elastic properties of the reservoirA subsurface body of rock with sufficient porosity and permeability to store and transmit fluids and overburdenRocks and sediments above any particular stratum, pre-existing faults and fractures and the initial stress state is vital to evaluate the fluid flow and rock mechanical response to pressure changes. Geomechanical coupled flow models integrating the fluid flow and the stress field may be used in many areas of geological CO2Carbon dioxide storage(CO2) A process for retaining captured CO2, so that it does not reach the atmosphere. By combining the geomechanical coupled flow simulation results with measured mechanical changes during the injectionThe process of using pressure to force fluids down wells phase, the key risks that may lead to leakage(in CO2 storage) The escape of injected fluid from the storage formation to the atmosphere or water column of injected CO2Carbon dioxide could be assessed early. Studies have shown the importance of building a good rock mechanical property model and that the fractures and faults have a significant role in controlling the pressure and saturation distribution.