EMF5000 electromagnetic flowmeter with four electrodes, The built-in grounding electrode, For non conductive pipe without additional power connection ring.
EMF5000电磁流量计采用四电极，内置接地电极，用于非导电管道无需另加接电环。
2
In ordinary stripping operations, the pipe falls into the wellbore under its own weight, and no additional downward force or pushing is required.
在平常的不压井起下钻作业中，管柱下入井眼是依靠其自身重量，不需要附加的向下载荷或者推力。
3
It points out that to establish pipeadditional technical requirement shall consider from practical demand and live up to rational matching harmony to gain final the best quality-value ratio.