ISO 2290-1972 标准详情
- 标准号:ISO 2290-1972
- 中文标题:旋转钻井设备.方钻杆上旋阀和下旋阀
- 英文标题:rotary drilling equipment; upper and lower kelly cocks
- 标准类别:国际标准化组织标准ISO
- 发布日期:1972-09
Lays down specifications for kelly cocks, i.e. manually operated valves in the circulating system of the drill stem, intended for use in blow-out emergencies, the upper cock being intended for use between the lower end of the swivel sub and the upper
* 特别声明:资源收集自网络或用户上传,本网站所提供的电子文本仅供参考,请以正式出版物为准。仅供个人标准化学习,研究使用。如有侵权,请及时联系我们!
