管柱脱落是自由式管柱结构经常发生的一种现象,这是由于正常运转时转子旋转对定子产生的摩擦扭矩方向实际上是定子及油管的连接螺纹的卸扣方向,如果摩擦力矩大于油管扣的上扣扭矩,油管就脱扣。当尾管很重时,还会出现螺纹掳扣。当管柱脱落时,通过作业重新连接好就能恢复生产。如果未发生螺纹掳扣,可以采取对扣方式打捞,如果发生掳扣,必须下打捞工具进行打捞。Column shedding is
莫诺螺杆泵配件
管柱脱落是自由式管柱结构经常发生的一种现象,这是由于正常运转时转子旋转对定子产生的摩擦扭矩方向实际上是定子及油管的连接螺纹的卸扣方向,如果摩擦力矩大于油管扣的上扣扭矩,油管就脱扣。当尾管很重时,还会出现螺纹掳扣。当管柱脱落时,通过作业重新连接好就能恢复生产。如果未发生螺纹掳扣,可以采取对扣方式打捞,如果发生掳扣,必须下打捞工具进行打捞。Column shedding is a common phenomenon of free tube structure, which is due to the direction of rotation of the friction torque generated by the stator rotor during normal operation is actually a stator and tubing connection1 screw shackle direction, if the friction torque is greater than the pipe le on torque, oil pipe tripping. When the tail pipe is very heavy, there will also be a thread caption. When the pipe column falls off, the production can be restored by reconnecting the work. If the le is not threaded, it can be salvaged by the way of the le. If the le occurs, the fishing tool must be salvaged.
杆柱脱落Rod shedding杆柱脱落也是螺杆泵常发生的一种故障现象,表现为运行电流很低,井口也无产液,正反循环油套不连通,通过对扣或下入抽油杆打捞工具就可以进行处理来恢复生产。抽油杆脱落也有两种情况,一是脱扣,一是掳扣。造成脱扣的原因是停机后抽油杆柱扭转变形余能释放引起杆柱反转,可以采取在地面和抽油杆柱上安装防倒装置进行防止。造成杆柱掳扣的原因有三个:一个是稠油井在长时间关井后再启泵时,启动扭矩特别大,把螺纹损坏了;一个是油特别稠,螺杆泵长期在高扭矩下工作而把螺纹损坏;再有一个原因是定子部分脱胶,转子转不动造成的。

F、抽油杆F, sucker rod所使用的抽油杆是常用的普通抽油杆、空心抽油杆和连续抽油杆,可根据油井确定。The sucker rod used is commonly used as a common 1sucker rod, hollow sucker rod and continuous sucker rod, which can be determined according to the oil well.G、定子扶正器G, stator centralizer定子扶正器为有一定弹性的笼形装罩,每一对由两半构成,中间大、两端小。作用是使定子居中和减小定子的摆动。The stator centralizer is a cage shaped cover with a certain elasticity. Each pair is made up of two halves, large in the middle and small at both ends. The function is to make the stator middle and reduce the stator wobble.H、锚定装置H, anchoring device对于没有封隔器的井和泵挂深度浅的井,用于固定定子、消除摆动和防止定子脱扣。采用普通的锚定装置即可。For wells without packers and shallow wells with deep pumps, it is used to fix the stator, eliminate the swinging and prevent the tripping of the stator. A common anchoring device can be used.

211G型单螺杆泵可无脉动地工作 G型单螺杆泵工作时,通过螺杆转子与泵套的孔壁间形成的一个个密封腔,平稳地从低压区运送到高压区,在整个运送过程中,介质作纯轴向运动,可完全做到无脉动地运送介质。这一点与齿轮泵不同。齿轮泵工作时,在齿轮的转动下,介质作轴向与径向及其复合方向的运动,产生明显的搅拌现象。其输出压力的表现形式:G型单螺杆泵的输出压力比较稳定,齿轮泵则出口压力会有波动。这一点在输送高粘度的介质(如重油等)时比较突出。

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