Methods and apparatus for supporting tubulars
US7926577B2 · kind B2 · utility
6Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Nov 29, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/026
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the invention relate to a gripping apparatus for supporting a tubular. The gripping apparatus may include a housing, a slip assembly disposed in the housing, and a leveling ring operable to move the slip assembly in the housing. The gripping apparatus may further include a guide member and a mating member operable to couple the slip assembly to the leveling ring. The longitudinal movement of the leveling ring directs the mating member along the guide member to radially displace the slip assembly relative to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.