稠油降黏甲基丙烯酸十二酯基三元共聚物合成与降黏性能的研究  

Study on Synthesis of Lauryl Methacrylate-based Copolymer and Its Performance of Viscosity Reduction in Viscous Crude Oil

作　　者：宋红真[1] 王晓云[2] 韩涛[1] 李冰[1] 吕小博[1] 于萍[1] 

机构地区：[1]山东大学化学与化工学院,山东济南250061 [2]山东省化工研究院,山东济南250014

出　　处：《山东化工》2010年第10期6-9,12,共5页Shandong Chemical Industry

基　　金：国家重点基础研究发展计划(973计划)(2008CB617508)

摘　　要：采用自由基溶液聚合法合成了油溶性甲基丙烯酸十二酯-苯乙烯-马来酸酐三元共聚物(LSM),以此为基础复配成可工业用的甲基丙烯酸十二酯-苯乙烯-马来酸酐三元共聚物稠油降黏剂。通过聚合产物的表征、单体配比对聚合产物收率的影响和聚合过程工艺的研究确定了最佳工艺参数;以具有代表性的胜利油田高稠原油为研究对象并结合工程实际应用情况,研究了不同单体配比聚合产物对降性能的影响、浓度对降黏效果的影响和添加降黏剂前后黏度随温度变化对比。研究认为在甲基丙烯酸十二酯基三元共聚稠油降黏剂加量800×10-6、使用温度35℃条件下,原油表观黏度由315mPa.s降至150mPa.s,降黏率达52.38%,表现出了良好的降黏效果。A type of oil soluble ternary polymer, Lauryl methacrylate -styrene -maleic anhydride （LSM） was synthesized by using solution polymerization. Therefore, a new complex formulation of crude oil viscosity reducer was prepared available for industrial use. The optimum parameters were determined by the characterization of polymers, the monomer ratio on the yield of the polymers and the study of polymerization process. A representative crude oil, i.e. high viscous crude oil explored from Shengli oil field was determined as the research object and based on practical situation, the effection of polymers which had different monomer ratios to viscosity reduction property and concentration to viscosity reduction rate, as well as contrast of temperature pre and post addition of viscosity reducer were studied. This study showed that lauryl methacrylate - based copolymer had good viscosity reduction in crude oil. When 800 × 10-6 of the viscosity reducer was added into crude oil, the viscosity was decreased from 315mPa ·s to 150mPa· s, and the apparent viscosity was lowered by 52.38% at 35℃.

关 键 词：甲基丙烯酸十二酯 马来酸酐 苯乙烯 溶液聚合法 降黏剂 

分 类 号：TQ316.3[化学工程—高聚物工业]