Magnetic wax controllor test had been done for two years, although the result was good, to control the oil delivery temperature near the pourpoint was difficult.
采用磁防蜡器经两年试验，效果虽好，但输油温度要控制在凝固点附近而不易做到。
2
Add different for different crude oil pourpoint depressant, dispersant or viscosity reducer can improve low-temperature fluidity of crude oil.
针对不同原油加入不同降凝剂、分散剂或降粘剂可以改善原油的低温流动性。
3
At the delivery of crude oil process, the main research of the pourpoint depressant for crude oil the role of low-temperature fluidity.