Apparatus and method for radially expanding a tubular member
US7185701B2 · kind B2 · utility
14Cited by
36References
51Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2002 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Aug 21, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/105
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and methods for radially expanding a tubular such as a drill pipe, liner, casing or the like. 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. In certain embodiments, one or more anchoring devices are used to substantially prevent the tubular from moving during expansion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.