Remotely operated isolation valve
US10214999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2015 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | May 23, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shifting tool for use in a wellbore includes a tubular housing having a bore formed therethrough; a tubular mandrel disposed in the housing and longitudinally movable relative thereto; and an engagement member moveable relative to the housing between an extended position, a released position, and a retracted position, wherein: the engagement member is movable from the retracted position to the extended position in response to movement of the mandrel relative to the housing, and the engagement member is further movable from the extended position to the released position in response to movement of the mandrel relative to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.