Tubular friction welding joining method without rotation of the tubulars
US8998067B2 · kind B2 · utility
11Cited by
19References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2013 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Feb 23, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Tubulars are joined to each other without rotation of the tubulars. A coupling is placed between the aligned tubulars and is supported for rotation or oscillating about its longitudinal axis. The tubulars are clamped in a manner that allows a compressive force to be transmitted to the coupling as the coupling is rotated. An induction device can preheat each connection site before friction welding and/or provide heat as the connection is made and is allowed to cool down. The process can continuously create a string of casing or liner that can be run in or drilled into a wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.