| 发明名称 | Tubular engaging device and method | ||
| 摘要 | Present embodiments are directed to a device for a top drive drilling system. The device includes a movable sleeve configured to be disposed around at least a portion of a sub. The movable sleeve is configured to be selectively disposed around a tubular by sliding axially along the sub. The device also includes a plurality of engagement features extending inwardly from an inner circumference of the movable sleeve. When the movable sleeve is disposed around the tubular, the plurality of engagement features are configured to engage the tubular when the movable sleeve is rotated in a first direction and to not engage the tubular when the movable sleeve is rotated in a second direction. | ||
| 申请公布号 | US8985225(B2) | 申请公布日期 | 2015.03.24 |
| 申请号 | US201113329069 | 申请日期 | 2011.12.16 |
| 申请人 | Tesco Corporation | 发明人 | Nikiforuk Kevin James |
| 分类号 | E21B19/16 | 主分类号 | E21B19/16 |
| 代理机构 | Fletcher Yoder, P.C. | 代理人 | Fletcher Yoder, P.C. |
| 主权项 | 1. A device for a top drive drilling system comprising: a sub having a first coupling end configured to mate with the top drive drilling system and a second coupling end configured to mate with a tubular; a movable sleeve disposed around at least a portion of the sub, the movable sleeve configured to be selectively disposed around the tubular by sliding axially along the sub; a sealing device disposed between the movable sleeve and the sub; and a plurality of engagement features extending inwardly from an inner circumference of the movable sleeve, wherein, when the movable sleeve is disposed around the tubular, the plurality of engagement features are configured to engage the tubular when the movable sleeve is rotated in a first direction and to not engage the tubular when the movable sleeve is rotated in a second direction. | ||
| 地址 | Houston TX US | ||