Tubular connection
US9926771B2 · kind B2 · utility
0Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2013 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Aug 9, 2034 |
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 annular members mounted within a receiving section to provide regions of differing resistance to the radial load. When a portion of a second tubular member is expanded radially outwardly within the receiving section a joint is formed between the members. Embodiments of host tubular members include recesses for the portion to form protrusions within, collapsible rings, channels and valves to expel fluid from the interface between the members and gripper elements and sealing elements to improve the joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.