Method for treatment of environmentally acceptable emulsions in chemically enhanced oil recovery operations.

摘要

The present invention provides a method for desmulsificau00e7u00e3o of an emulsion comprising oil and water.The method comprising the addition of an effective amount of a composition comprising (a) a surfactant esterquat of formula (1) to follow in which R1 is an aliphatic hydrocarbon group C5 - C29.R2 is - c2h4oh or c2h4oco R1, R3 is - c2h4oh or c2h4oco R1 or a group of C1 - C10 aliphatic hydrocarbon; R4 is a C1 - C10 aliphatic hydrocarbon group, X is an anion, (b) water.At least one organic solvent or both to the emulsion.