Liner hanger
US6568471B1 · kind B1 · utility
111Cited by
228References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method for forming a wellbore casing. An annular piston is displaced in the axial direction by pressurizing an annular piston chamber. The axial displacement of the piston radially expands a tubular member into contact with a preexisting tubular member. The radially expanded liner hanger is then decoupled from the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.