Gas lift valve assemblies having fluid flow barrier and methods of assembling same
US9689241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2014 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Apr 15, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas lift valve assembly includes a housing, a check valve, and a fluid flow barrier. The housing defines an inlet port, an outlet port, and a main flow passage providing fluid communication between the inlet port and the outlet port. The main flow passage has an upstream end and a downstream end. The check valve includes a sealing element disposed at the downstream end of the main flow passage, and a valve member configured to sealingly engage the sealing element. The valve member is movable between an open position in which fluid flow is permitted in a downstream direction, and a closed position in which the valve member inhibits fluid flow in an upstream direction. The fluid flow barrier is disposed within the main flow passage, and is configured to direct fluid flow away from the sealing element when the valve member is in the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.