Drill rod joint
一种钻杆接头、母接头的技术,应用在钻杆、钻管、钻井设备等方向,能够解决抗扭强度和密封性能无法满足地质环境要求、不能较好地分散钻杆接头应力、螺纹易疲劳断裂等问题,达到提高可打捞能力、减少沉积在接头内的机会、提高水力学性能的效果
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[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] Such as Figures 1 to 4 As shown, the drill pipe joint of the present invention includes a male joint 1 and a female joint 2, and the male and female joints 1, 2 are connected to each other through the outer and female joint threads 3, 4; the two sides of the male joint thread 3 are respectively arranged There is a main shoulder 5a of a male joint and a secondary shoulder 6a of a male joint. The two sides of the female joint thread 4 are respectively provided with a main shoulder 5b of a female joint and a secondary shoulder 6b of a female joint. The main shoulder is used for sealing and Anti-torsion effect, the secondary shoulder plays an anti-torsion effect; the taper of the male and female joint threads 3 and 4 is 1:6. ...
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