Flapper gas lift valve
US7832486B2 · kind B2 · utility
0Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2008 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Jul 17, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A gas lift valve has a flow restrictor, a valve part on one side of the flow restrictor, a flow deflector and a tubular member on another side of the flow restrictor, and a flapper valve on the side of the flow restrictor where the tubular member is located, the flapper valve being adjacent to the tubular member. When fluid flows into the gas lift valve at sufficient pressure, the valve part opens, the fluid flows through the flow restrictor and acts on the flow diverter thereby moving the tubular member and opening the flapper valve. The tubular member extends though the opening the flapper valve covered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.