CO2 Sequestrated EOR

1. Can ‘CO2 Miscibility’ be characterized as a ‘Thermodynamic Condition’, where a distinct interface between CO2 and oil no longer exits, and these two fluids form a single-phase mixture – in a real field scenario?

2. How does the ‘Miscibility between CO2 and Oil’ develop @ Pore-Scale, or @ Sub-Pore-Scale?

3. What happens to the ‘Capillary Pressure between CO2-Oil’ and ‘IFT’ @ the ‘interface between CO2 and Oil’ – upon Miscibility?

4. How does the ‘Miscibility between CO2 and Oil’ develop @ Molecular-Scale?

Dr Suresh Kumar Govindarajan

Professor [HAG]

IIT–Madras

04-March-2025