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聚合物驱油技术的实施，改变了油井产出水的性质，以致产出水油水分离的难度明显增大。为了确定用于聚合物驱产出水脱油处理的水力旋流器结构型式，首先在室内对普通脱油型水力旋流器的内部速度场进行了激光测定。试验研究显示，在聚丙烯酸胺含量较低（例如100或200mg／t）时，水力旋流器内液体的运动速度有所升高；反之（例如聚丙烯酸胺的含量为300或400mg／L时）则降低。考虑到大庆油田聚合物驱采出水中聚丙烯酸胺含量一般为400mg／L，决定把加大液流的运动速度作为研制水力旋流器的主要依据，并在结构上加以改进，设计制造了1台脱油型水力旋流器。在大庆油田的现场试验表明，样机的分离效率高达85％以上。
The implementation of polymer flooding technology has changed the nature of oil produced water, resulting in the difficulty of producing water, oil and water separation increased significantly. In order to determine the hydrocyclone structure type used in the polymer flooding dewatering treatment, the internal velocity field of the conventional deoiling hydrocyclone was first laser measured indoors. Experimental studies have shown that when the polyacrylamide content is low (for example 100 or 200 mg / t), the hydrocyclone movement speed of the liquid has increased; the other hand (for example, polyacrylamide content of 300 or 400mg / L ) Is reduced. Taking into account the poly Daqing Oilfield polymer flooding produced polyacrylic acid amine content is generally 400mg / L, decided to increase the liquid flow rate as the main basis for the development of hydrocyclones, and to be structurally improved, the design and manufacture of a Taiwan off the oil hydrocyclone. The field test in Daqing Oilfield shows that the separation efficiency of the prototype is over 85%.