Rate controllable gel for conformance improvement treatment in a

Recovering hydrocarbons with a mixture of carbon dioxide and alc

Recovering hydrocarbons with surfactants from lignin

Recovering hydrocarbons with water soluble alkylphenol lignin su

Recovering oil by injecting ammoniated and nitrited seawater

Recovering oil by injecting aqueous alkali, cosurfactant and gas

Recovering oil by injecting hot CO.sub.2 into a reservoir contai

Recovering oil bypassed by a steam override zone

Recovering petroleum from subterranean formations

Recovering viscous petroleum from thick tar sand

Recovery and recycling of chemicals in chemical flooding...

Recovery of bitumen by steam injection

Recovery of bitumen from tar sands

Recovery of bitumen or heavy oil in situ by injection of hot wat

Recovery of heavy crude oil or tar sand oil or bitumen from unde

Recovery of heavy crude oil or tar sand oil or bitumen from unde

Recovery of heavy hydrocarbons from underground formations

Recovery of hydrocarbons by in situ thermal extraction

Recovery of hydrocarbons from oil shale deposits

Recovery of hydrocarbons in oil wells by injection of...