steerable sleeve
基本解释
- [能源科学技术]导向活套
专业释义
- 导向活套
When the automatic anti-deviation drilling system is in operation ,a relative rotate speed is needed between the steerable sleeve and the drill string to produce essential anti-deviation powers.
自动垂直钻井系统在工作中,由于纠斜动力的需要,导向活套与钻杆需要保持一个相对转速。