Positive displacement motor is widely used in sidetrack drilling inside casing because of its excellent dynamic characteristic.
由于螺杆钻具本身具有良好的动力特性，在套管内侧钻中得到广泛应用。
The breaking and milling tool is a special tool used which is used to cut and mill a section of casing in hole so that sidetrack drilling operation can be done smoothly.
断铣工具是用来割断并磨铣井内一段套管以能够进行侧钻作业的专用工具。
The breaking and milling tool is a special tool used which is used to cut and mill a section of casing in hole so that sidetrack drilling operation can be done smoothly.
断铣工具是用来割断并磨铣井内一段套管以能够进行侧钻作业的专用工具。
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