Drilling String and Drilling Tools(钻具和钻井工具) Drill pipe slip(钻杆卡瓦) 23.1 Drill Collar slip(钻铤卡瓦) 23.2 Casing Slip(套管卡瓦) 23.3 B-Rotary Tong(B 型吊钳) 23.4 DB-Rotary Tong(DB ...
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Based on the operational principle of on/off slip of continuous-circulation system, the forced state of drill pipe was clarified.
从钻井连续循环系统上卸扣卡瓦的工作机理入手,弄清了钻杆工作时的受力状态。
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