A simple overview of aspects related to CO2 flooding of North Sea oil fields has been prepared. Enclosed is the presentation.
CO2 flooding is a process wherby CO2 is injected into an oil reservoir to increase oil recovery
-At reservoir conditions CO2 takes liquid-like properties and acts as an oil solvent
-CO2 can dissolve residual oil left behind after waterflooding
CO2 can reduce residual oil saturation to almost zero if applied instead of water injection
CO2 injection is often combined with water injection (in the same well)
-Increases reservoir volume contacted by CO2
-Reduces required amount of CO2
