On the basis of the practical problems of polymer oil displacement in Daqing oilfield,the component of stemming in polymer flooding well is measured,and the reason of forming plug has been analysed.

• 针对大庆油田注聚合物驱油的实际情况,测定了注聚合物驱井底堵塞物的组成,分析了形成堵塞的原因。