A SURFACTANT COMPOSITION, PRODUCTION AND USE THEREOF

摘要

The present invention relates to a surfactant composition and a preparation method therefor and an application thereof in tertiary oil recovery. The surfactant composition according to the present invention comprises a cationic-nonionic surfactant and an anionic surfactant, and has apparently improved interfacial activity and stability as compared with the prior art. By means of the surfactant composition of the present invention, an oil displacement composition for tertiary oil recovery that has better oil displacement efficiency and oil washing capability than the prior art can be prepared.