摘要
采用扫描电子显微镜、激光粒度仪和微孔滤膜过滤实验研究了一种双交联结构新型耐温聚合物微球的形态、溶胀性能、耐温性能及封堵性能。结果表明,微球原始形态为表面较为光滑的圆球形,粒径主要分布在200~300 nm,微球在矿化度10000 mg/L的水溶液中140℃溶胀30 d后约溶胀了5倍。随着溶胀时间、溶胀温度和微球浓度增加,微球对微孔滤膜的封堵能力逐渐增强,140℃溶胀30 d的微球封堵效果最强;随着滤膜孔径的增大,微球封堵效果减弱。微球在140℃下溶胀30 d后依然具有良好的封堵性能,说明微球具有良好的耐温性。
Scanning electron microscopy,laser particle size analyzer and microporous membrane filtration experiments were used to study the morphology,swelling performance,temperature resistance and plugging performance of a novel double-crosslinked structure temperature-resistant polymer microsphere.The results show that the original shape of the microspheres is a smooth spherical surface with a particle size mainly distributed between 200 nm and 300 nm.The microspheres swelled 5 times after swelling for 30 days at 140℃in an aqueous solution with a salinity of 10000 mg/L.With the swelling time,swelling temperature and microsphere concentration increasing,the plugging characteristics of the microspheres to the microporous membrane is gradually enhanced.The microspheres with the swelling for 30 d at 140℃have the best plugging effect;with the increase of the pore size of the membrane,the microsphere plugging effect is weakened.The microspheres still have good plugging performance after swelling at 140℃for 30 d,indicating that the microspheres have good temperature resistance.
作者
马永宇
林梅钦
王志永
刘俊辰
Ma Yongyu;Lin Meiqin;Wang Zhiyong;Liu Junchen(Institute of Unconventional Oil and Gas Science and Technology,China University of Petroleum,Beijing 102249,China)
出处
《石油化工高等学校学报》
CAS
2020年第2期47-52,共6页
Journal of Petrochemical Universities
基金
国家自然科学基金项目(No.51874316)
国家科技重大专项(2017ZX05009)
关键词
耐温性
聚合物微球
微孔滤膜
封堵特性
粒径
Temperature-resistant
Polymer microspheres
Microporous filtration membrane
Plugging characteristics
Particle size
作者简介
马永宇(1992-),男,硕士研究生,从事油田化学方面研究,E-mail:nanfengyu123@foxmail.com;通信联系人:林梅钦(1965-),男,副教授,从事胶体与界面化学、油田化学、提高原油采收率方面研究,E-mail:linmq@cup.edu.cn。
