Model QW50A Air Operated Slips is a wellhead tools. Mainly used to clipping tubing and drilling rod which raise or put down at well repairing service operation.

QW50A气动卡瓦是油田修井作业时，安装在井口上用于卡紧油管及类似管柱的一种工具。

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With the increasing demand of the lateral drilling and slim hole drilling, the coiled tubing (CT) operating technique will play a great role in horizontal well drilling, well workover and completion.

随着我国侧钻井和小井眼钻井需求的不断增加，连续油管作业技术在我国水平井钻井、修井及完井作业中将会发挥巨大作用。

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However, compared with drilling tools or regular oil tubes, the coiled tubing is so light and flexible that it makes it complicated with its own endured forces in the well.

但由于连续油管与钻具、常规油管相比的轻、柔属性使其在井下受力特别复杂。

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