由于卸扣会使钻具产生弯曲力,因此,钻具接头必须尽可能低些坐在卡瓦上。
Since a bending force is exerted on the pipe during break out, the tool joint connection must be set in the slips as low as possible.
如果卡紧管柱的卡瓦或吊卡失去了其抓力,则安全卡瓦可防止工具管柱意外地掉落井下。
The safety clamp prevents the tool string from being dropped downhole accidentally if the slips or elevators securing the string lose their grip.
如果卡紧管柱的卡瓦或吊卡失去了其抓力,则安全卡瓦可防止工具管柱意外地掉落井下。
The safety clamp prevents the tool string from being dropped downhole accidentally if the slips or elevators securing the string lose their grip.
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