In recent years, fundamental research has focused increasingly on the short- and long-term effects of CO2 injection into reservoirs to assess the feasibility of CO2 storage on a commercial scale.  

• Sequestration processes involve different trapping mechanisms according to the hydrodynamic, physical and chemical conditions in the formation.  
• It is common to divide these mechanisms into four different categories: hydrodynamic trapping, residual trapping, solubility trapping, and mineral trapping. 

Source: Indian Express