Bi-directional locking liner hanger with pressure balanced setting mechanism
US10012046B2 · kind B2 · utility
6Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Jan 10, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/042
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A liner hanger features a pressure balanced setting sleeve system that applies no net force to the slips when internal pressure is raised in access ports associated with opposed actuation sleeves such that applied pressure results in opposed forces that cancel each other out. When one of the sleeves is isolated from tubing pressure and the other port to the other sleeve is pressurized, the bi-directional slips are extended and their extended position is locked with a lock ring to hold the set of the liner hanger against release.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.