The minor cation/polyalcohol drilling fluid was tested and then widely used in Yuxi and Hongtai structures which is relative geologically complex in Tuha oilfield.

• 室内试验表明,该钻井液比聚磺钻井液在抑制性、润滑性、流变性以及抗温、抗盐能力方面都有不同程度的增强。