Detachable locking device for a control valve and method
US6102060A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Feb 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86485
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A valve device for use downhole is described as comprising a body member and a channel through the body member through which fluid can flow. A moveable member is mounted within the body member, and comprises an obturating member for selectively obturating the channel. The moveable member is moveable between a first position in which the channel is not obturated and fluid flow through the channel is permitted, and a second position in which the channel is obturated and fluid flow through the channel is substantially prevented. A method of preventing the fluid flow downhole is also described as comprising the steps of inserting a downhole tool comprising a valve device according to the present invention downhole and moving the moveable member from the first to the second position such that the obturating member obturates the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.