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.