The injection mandrel is equipped with a port - and check-valve system to direct fluid pumped down the annulus or injection line into the production conduit.
配注器装有孔口阀和单向阀系统，使泵入的流体沿环空向下或沿注入管线向下进入生产导管。
By using the combined implicit characteristic line method, the calculation of the transient surge pressure in the flow conduit of a drilling well has been resolved in this paper.
本文用混合隐式特征线法求解了井内流道中的瞬态波动压力问题，给出了弹性管和可压缩流体在井内各流道组合的压力波波动方程和定解条件。
应用推荐