Background

| CO₂ Flooding 101

Horizontal Flooding

How does it work?

CO₂ is pumped under high pressure into the reservoir through injection wells, creating a CO₂ flood bank. This CO₂ bank mixes with the oil remaining in the reservoir, causing it to become more mobile. The CO₂ acts as both a solvent (by reducing oil viscosity) and a swelling agent. As more oil is encountered, an oil bank forms and is pushed ahead of the CO₂ flood bank toward producing wells. The producing wells pump the oil to the surface where the CO₂ is separated from the oil and re-injected back underground.

Vertical Flooding