Tubing expansion
US7367389B2 · kind B2 · utility
18Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Feb 8, 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 tubing downhole.In one embodiment, there is disclosed a method of expanding downhole tubing such as a liner (10), the method comprising the steps of locating the liner (10) in a borehole (12), expanding a part (16) of the liner (10) in the borehole (12), locating an expansion device such as an expandable cone (18) in said expanded part (16) of the liner (10), and translating the cone (18) relative to the liner (10) to expand a further part (20) of the liner (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.