FOAMERS FOR DOWNHOLE INJECTION

摘要

A method of foaming a fluid for recovering gas from a gas well and enhancing oil production from a gas-lifted oil well penetrating a subterranean oil-bearing formation is disclosed and claimed. The method includes introducing into the fluid a foam-forming amount of a composition comprising at least one compound selected from the following: X+ alkyl benzene sulfonate; X+ alkylnapthalene sulfonate; alkyldiphenyloxide disulfonate; dialkyldiphenyloxide disulfonate; X+alkyl sulfate; naphthalene sulfonate formaldehyde condensate; and combinations thereof. The method of invention further provides foamers that are compatible with a reverse osmosis membrane.