Apparatus and methods for radially expanding a tubular member
US7401650B2 · kind B2 · utility
3Cited by
3References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2007 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Mar 6, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/105
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Radially expanding a tubular such as a liner or casing, especially in a downward direction. The apparatus includes at least one driver device such as a piston that is typically fluid-actuated, and an expander device is attached to the or each driver device. Actuation of the or each driver device causes movement of the expander device to expand the tubular. One or more anchoring devices, which may be radially offset, are used to substantially prevent the tubular from moving during expansion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.