油溶性降粘剂SA/MMA/VTEO共聚物的合成与性能评价  

Preparation and laboratory evaluation of copolymer of oil-soluble viscosity reducer SA/MMA/VTEO

作　　者：陈小凯[1] 

机构地区：[1]中国石油辽河油田公司,辽宁盘锦124125

出　　处：《化学工程师》2016年第7期37-40,24,共5页Chemical Engineer

基　　金：国家科技重大专项"渤海湾盆地辽河坳陷中深层稠油开发技术"(2011ZX05053)

摘　　要：以丙烯酸十八酯(SA)、乙烯基三乙氧基硅烷(VTEO)、甲基丙烯酸甲酯(MMA)为原料,甲苯作溶剂,过氧化苯甲酰(BPO)作引发剂,通过溶液聚合得到三元共聚物,即油溶性降粘剂。确定了最佳合成条件:n_(SA)∶n_(MMA)∶n_(VTEO)=1∶0.5∶0.8,反应时间5h,引发剂用量0.4%,反应温度80℃。室内性能评价实验表明:在50℃下,当降粘剂加药量为500mg·L^(-1)时,降粘率达90%;含水越低,降粘效果越明显;在250℃条件下,降粘剂保持降粘率在80%以上达16h;降粘剂对联合站原油脱水基本无影响。SA/MMA/VTEO terpolymer was obtained by solution polymerization with octadecyl acrylate, methyl methacrylate, Vinyhriethoxysilane as materials, toluene as solvent, and benzoyl peroxide as initiator. The optimum copolymerization condition of the oil-soluble viseosity erdueer SA/MMA/VTEO was as follows： n（SA）∶n（MMA）∶n（VTEO）=1： 0.5：0.8,reaction time 5 hours,initiator 0.4% ,reaetion temperature 80℃. The laboratory evaluation of viscosity reducer indicate that when the dosage of the viscosity reducer is 500mg·L^-1,viscosity reduction rate is 90%; The lower the Water, the better the reducing viscosity effect; At 250℃, viscosity reducer maintain above 80% Viscosity reduction rate？for 16h, the viscosity reducer won＇t disturb the Dehydration of United Station.

关 键 词：油溶性降粘剂 丙烯酸十八酯 乙烯基三乙氧基硅烷 甲基丙烯酸甲酯 

分 类 号：TE39[石油与天然气工程—油气田开发工程]