Tubing expansion
US7255177B2 · kind B2 · utility
12Cited by
11References
71Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2004 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Feb 22, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
There are disclosed methods and apparatus for expanding downhole tubing.In one embodiment, there is disclosed a method of expanding tubing comprising providing an assembly 40 comprising a section of expandable tubing (42) and an expansion device in the form of an expansion mandrel (44) located at least partially externally of the tubing (42), running the assembly (40) into a bore, translating the expansion mandrel (44) relative to the tubing (42) to expand an end section of the tubing (42), and further translating the expansion mandrel (44) relative to the tubing (42) to expand a further section of the tubing (42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.