Preparation and Evaluation of Polymeric Pour Point Depressant for Crude Oil

A series of polyacrylate ester (PAE) was prepared by free-radical polymerization. The PAEs were used as pour point depressant for crude oil from Yumen Oil Field. PAE12 and PAE18 showed potent activity for 2# and 4# samples under the concentration of 500 ppm with the highest Δ pour point of 10-13°C. In the further study, the effect of the concentration on the pour point was investigated.