This paper presents a theoretical model for realistic annular pressure loss calculation in which the eccentricity is a function of the well depth and a simplified method for field calculations.
本文介绍偏心度为井深函数的实际环空中压降计算的理论模型和便于现场使用的简化计算方法。
With low pressure loss and simple repair, the annular-type centrifugal flowmeter, being without rotary element installed in it, can not be stuck and block up.
作为新产品的环式离心流量计因结构内部无转动部件，故不易卡、堵，压力损失小，维修工作量少。
With low pressure loss and simple repair, the annular-type centrifugal flowmeter, being without rotary element installed in it, can not be stuck and block up.
作为新产品的环式离心流量计因结构内部无转动部件，故不易卡、堵，压力损失小，维修工作量少。
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