超稠原油流动改进剂的制备及应用

摘要

通过多元高碳醇与甲基丙烯酸酯化、共聚和胺解,研制出新型胺解共聚物型超稠原油流动改进剂,将流动改进剂应用于辽河超稠油中,进行黏温性能测试和模型预测分析。实验结果表明,由于胺解共聚物流动改进剂具有与稠油较为相似的结构组成,使得原油内部大基团溶解而促进原油流动,因而显示出对超稠油独特的降黏效果,平均降黏率50%,最高可达到80%以上。建立了原油黏度随温度变化的预测模型并进行了三维参数模拟,预测模型的相关性达到0.987。%A new flow improver additive for super-viscous crude oil was prepared by esterification of polybasic high carbon alcohol with methacrylate and copolymerization and amination copolymers.The additives were used in Liaohe super-viscous crude oil.The viscosity-temperature property was investigated and a prediction model was regressed.The result showed that amination copolymers with similar structure of super-viscous crude oil could dissolve the huge polar groups to make the crude oil flow.Hence,viscosity decline rate reached 50%,with the highest above 80%.A viscosity-temperature prediction regression model was established and three-dimensional simulation was developed.The correlation coefficient of prediction regression model reached 0.987.