The AT-2, a new crude oil flow improver, has been developed targeting the wax deposition problem in an oilfield. Antiwax and water separation experiments were carried out. The result showed that AT-2 had a satisfactory anti-wax effect on the produced liquid sample with watercut of 10%~50%. When the watercut was 40%, the maximum wax reduction rate was achieved, reaching 75.36%; meanwhile, the water separation was not affected when the concentration of AT-2 was lower than 100 mg/L. Considering the watercut of the wells having the wax problem is lower than 50%, the application of AT-2 would solve the wax deposition problem.

crude oil flow improver  /  waxy oil  /  anti-wax