Plunger lift arrangement
US9869165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Nov 7, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/121
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plunger for extraction of hydrocarbon fluids from a gas well system wherein the plunger is arranged to move upwardly and downwardly in an arrangement of inner tubing within the gas well system. The plunger comprises an elongated housing sleeve having a longitudinally directed bore, an elongated central chamber within the longitudinally directed bore, the central chamber having a plug nestable seat at each end thereof; and a plug displacably arranged within the central chamber so as to seal the bore during travel of the plug in a first direction in the inner tubing, and to permit flow of fluid through the plunger as the plunger travels in a second direction in the inner tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.