Structure Design of Grooved Joint Drill Pipe and Self-balancing Continuous Unscrewing Device
DOI:
https://doi.org/10.53469/jrse.2025.07(01).05Keywords:
Drill pipe joint wear, Grooved joint drill pipe, Self-balancing continuous unscrew device, Strength check, No radial pressure is applied, Intelligent drillingAbstract
In the process of unscrewing the traditional drill pipe, the huge gripping force and friction on the outer surface of the joint often lead to the wear of the drill pipe joint. In order to solve the problems of the joint being eliminated and the pump or stuck caused by the wear of the drill pipe joint, a kind of grooved joint drill pipe and self-balancing continuous unscrewing device is designed in this paper, and the strength of the device is checked by numerical simulation. The design idea, structure principle and strength checking are introduced. The unscrew device can continuously tighten or unscrew the drill pipe without applying radial pressure to the drill pipe in the process of tripping and drilling pipe unscrew, and will not cause any damage to the surface of the joint, and the wear of the joint is only produced in the well and the wall, so it can effectively improve the overall service life of the drill pipe, reduce the probability of accidents such as drill pipe and stuck pipe, so as to improve the efficiency of drilling. It is of great significance to save the drilling cost. At present, the self-balancing screw unloading device has not been prepared, and it will be tested and put into practice in the future, hoping to achieve successful application in the field of intelligent drilling.
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Copyright (c) 2025 Yan Zhao, Wenjie Lu, Ke Gao, Yumin Wen
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