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我国石油钻井工人为了快打井多出油、多采气,争分夺秒地战斗在钻台上。随着深井、硬地层和海洋钻井的迅速增加。致使起下钻的工作量变得特别大。目前所使用的普通吊钳,上卸扣时消耗体力大、工效低、又不安全。因此,用机械化的动力大钳代替人工打吊钳、拉猫头、用旋绳器等进行上卸扣操作,是钻井工人多年来的迫切希望,是当前石油矿场机械向深井、硬地层和海洋钻井
China’s oil drilling workers in order to blow wells and more oil, more gas, fighting against time on the rig floor. With deep wells, hard formations and ocean drilling rapidly increasing. As a result, the workload of drilling has become particularly large. Currently used ordinary tongs, shackles on the consumption of physical strength, low efficiency, but also unsafe. Therefore, using mechanized power tongs instead of artificial tongs, pulling the cat’s head and using the twisting rope etc. is an urgent hope for the drilling workers over the years. It is an urgent task for the current drilling rigs to work in deep wells, hard formations and Marine drilling