申请人:CHINA PETROLEUM & CHEMICAL CORPORATION
公开号:US20170313928A1
公开(公告)日:2017-11-02
This invention relates to an anionic-cationic-nonionic surfactant as substantially represented by the formula (I), production and use thereof in tertiary oil recovery. The anionic-cationic-nonionic surfactant of this invention exhibits significantly improved interfacial activity and stability as compared with the prior art. With the present anionic-cationic-nonionic surfactant, a flooding fluid composition for tertiary oil recovery with improved oil displacement efficiency and oil washing capability as compared with the prior art could be produced.
In the formula (I), each group is as defined in the specification.
这项发明涉及一种阴离子-阳离子-非离子表面活性剂,其大致由式(I)所代表,以及该表面活性剂在三次采油中的生产和使用。该发明的阴离子-阳离子-非离子表面活性剂与现有技术相比具有明显改善的界面活性和稳定性。采用这种阴离子-阳离子-非离子表面活性剂,可以制备出用于三次采油的注水液组成物,其具有比现有技术更高的油位移效率和油洗能力。在式(I)中,每个基团如规范中所定义。