石油化工2023，Vol.52Issue(12)：1710-1715,6.DOI:10.3969/j.issn.1000-8144.2023.12.011
耐温抗高钙镁油藏驱油表面活性剂复配体系的研究
Study on mixed system of temperature-resistant and high calcium and magnesium-resistant surfactants for oil displacement in reservoirs
摘要
Abstract
In view of the problem that the existing composite flooding technology has unsatisfactory oil displacement effect on reservoirs with higher than 120 mPa·s of formation crude oil viscosity and more than 1 000 mg/L of calcium and magnesium ion content in formation water,the non-ionic surfactant lauric acid diethanolamide and anionic surfactant sodium dodecyl sulfonate were selected.The oil-water interfacial tension,contact angle,emulsifying ability on crude oil,washing oil ability on oil sand and other properties of the mixed surfactant were investigated.The experimental results show that when m(dilethanolamide laurate)∶m(sodium dodecyl sulfonate)is 5.3 and under the conditions of high temperature,high salinity and high calcium and magnesium content,the mixed surfactant has low oil-water interfacial tension,good wettability and high washing oil ability.关键词
表面活性剂/复配体系/高钙镁油藏/耐温Key words
surfactant/mixed system/high calcium magnesium reservoir/temperature resistance分类
化学化工引用本文复制引用
刘平,安文庆,寇燕如,高瑞通,陈照军,杜辉..耐温抗高钙镁油藏驱油表面活性剂复配体系的研究[J].石油化工,2023,52(12):1710-1715,6.基金项目
中国石化股份有限公司资助项目(KL22023). （KL22023）
