Liner hanger with sliding sleeve valve
US7172021B2 · kind B2 · utility
23Cited by
616References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Nov 3, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/105
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method for forming or repairing a wellbore casing, a pipeline, or a structural support. An expandable tubular member is radially expanded and plastically deformed by an expansion cone that is displaced by hydraulic pressure. Before or after the radial expansion of the expandable tubular member, a sliding sleeve valve within the apparatus permit a hardenable fluidic sealing material to be injected into an annulus between the expandable tubular member and a preexisting structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.