Flow restrictor device
US8925634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2010 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Dec 26, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flow restrictor device for production tubing comprising an obstructing member. The flow restrictor is arranged for movement between a first position where the obstructing member is located so as to form a seal with an edge of an aperture formed in a wall of said production tubing and is arranged to prevent fluid flow through said aperture, and a second position where the obstructing member is located so that the aperture is unobstructed. The flow restrictor further comprises a retaining arrangement for restricting possible locations of said obstructing member to said first position, second position and positions therebetween. The aperture allows fluid communication between the exterior and interior of the production tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.