Deep set subsurface safety valve with a micro piston latching mechanism
US9441456B2 · kind B2 · utility
6Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2013 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Dec 1, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subsurface safety valve is operable to close a fluid flow path by virtue of an axially movable flow sleeve. The valve includes a recockable actuator and a latch mechanism so that the valve can be moved to a closed position without overcoming the pressure head and frictional forces currently encountered in conventional safety valves. The latch mechanism includes one or more micro pistons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.