Abstract:

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.

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。