Sleeve valve
US9638003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2013 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jan 16, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An sleeve valve for a well assembly includes at least one set of passages extending through a tubular body between the central passage and an exterior of the tubular body and a sleeve slidably located within the central passage of the valve body adapted to selectably sealably cover or uncover the at least one sets of passages. A shifting tool for actuating the sleeve valve is connectable to a tool string and includes a shifting bore with an actuating piston extending from a central bore through the shifting tool and first and second key bores extending radially inwards from the outer surface each having a piston keys located therein. Each of the first and second piston keys is operably connected to the actuating piston so as to be extended from the outer surface when the central bore is supplied with a pressurized fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.