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详细说明:

The integration of oil and water wells snubbing unit
两个重要因素如下:
Two important factors as following:
1.密封问题:在换井口和起下油管过程中,要保证油管内部及油、套管环形空间不喷。
2.加压问题:在起至最后若干根油管或初下若干根油管时,井内压力对油管上顶力超过油管自重情况下,需保证能正常起下油管,关键是用外力有控制地起下油管。
Sealing: the inner side of the tubing, the annular space of the oil and sleeve pipes shall not gush during the process of wellhead replacement and snubbing tubings.
Pressurization: When rising the last several tubings or preliminarily snubbing several
tubings and under the condition that the jacking forces imposed by the downhole pressure
to the tubing exceeding the dead weight of the tubing itself, it shall ensure that the tubing
熊猫电竞 can be normally snubbed. More importantly, external force shall be applied to snub the tubing in a controllable way.



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