Plunger lift mechanism
US8347955B1 · kind B1 · utility
28Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2010 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Nov 30, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/121
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method and apparatus for a plunger lift mechanism with a main channel disposed between a first and second valve. The first valve is closed by engaging a sealing member to a first seat at a proximal end of the main channel and the second valve consequently closes to with a sealing member engaging a second seat at a distal end of the main channel. An amount of pressure accumulates on a first side of the plunger lift to overcome a pressure on a second side of the plunger lift to force the plunger lift to traverse a well bore and evacuate any fluids present above the plunger lift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.