Denbury Resources CO2 Enhanced Oil Recovery & CO2 Storage

[DenburyResources]

In liquid form, the CO2 acts as a type of solvent for the oil, causing the oil to expand and become mobile, allowing the oil to be recovered along with the CO2 as it is produced. The CO2 is then extracted from the oil, compressed back into a liquid state, and re-injected into the reservoir, with this recycling process occurring several times during the life of the tertiary operations.

[nurhidayahbohari88]

i would like to know more about this. What is that state of CO2 used in EOR injection process. Is it in a liquid form or gas form?