Residual oil is oil found in low concentrations naturally or in exhausted oil fields. Often mixed with water, it cannot be recovered by conventional techniques. However, it can be recovered using carbon dioxide-enhanced oil recovery (CO2 EOR) which involves injecting carbon dioxide into the well reducing viscosity and enhancing flow of the oil. Th...
Found on
http://en.wikipedia.org/wiki/Residual_oil
resid noun oil products that remain after petroleum has been distilled
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.
