Thread integrity feature for expandable connections
US7025135B2 · kind B2 · utility
8Cited by
58References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Oct 18, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellbore expandable connection, which includes a tubular pin member having an outwardly facing tapered threaded section and a tubular box member having an inwardly facing tapered threaded section. The threaded sections form a connection of a predetermined integrity when the tubular pin member is mated with the tubular box member. The integrity of the connection is substantially maintained during radial expansion of the connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.