EORGAS recovers oil by two independent but complimentary methods: 

Physical Chemical mechanisms of CO₂ + Geochemical mechanisms of CO

EORGAS, is a mixture of CO₂ + minor CO, plus other minor gasses of N₂, H₂O, CH₄. Fortunately, EORGAS is tolerant to these minor amounts of H₂, CH_n, H2Ov, and other gases. Thus production costs are significantly lowered. The CO (carbon monoxide) is the “workhorse” of the gas mixture.  Proven to lower IFT, aid conformance, mobilize asphaltenes, increase rate of oil recovery, minimize mcf/bo requirements, increase matrix permeability and allow operations at low pressures and immiscible conditions while protecting tubulars. These benefits are due to CO’s geochemical attraction to aromatic and ring compounds in the crude oil.

The unique triple bonding and polarity of the CO molecule results in:

• A small molecular diameter
• Low solubility in water (as compared to CO2)
• Migration and infiltration to oil-rich, tight, bypassed zones
• IFT-lowering, and
• Mobilization of asphaltenes

The combination of these geochemical properties results in a very unique oil recovery-enhancing, immiscible, mixed gas technology.