Tubular connection
US9567837B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2013 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Feb 27, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and method for connecting tubular members in a wellbore. A host tubular member has reinforcing annular members mounted thereon to provide regions of differing resistance to the radial load. When the host tubular member is expanded radially outwardly, within a second tubular member, each weaker region starts expanding first and seals the host tubular member against the second tubular member prior to the stronger region. Embodiments of host tubular members are described including members of progressive resistance, split rings, gripper elements and sealing elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.