Plunger lift arrangement

摘要

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.

主权项

1. A plunger assembly vertically movable within an inner tubing of a gas well system, for the enabling of hydrocarbon fluid extraction from such gas well system, the plunger assembly comprising:
an elongated plunger sleeve having a longitudinally arranged elongated bore extending therethrough; a plug movably arranged within an elongated central chamber within the elongated bore of the plunger sleeve, wherein the plug is arranged to displaceably move within the central chamber and to nest within an upper end of the central chamber during upward travel of the plunger in the inner tubing, and the plug is arranged to float within the central chamber during downward travel of the plunger in the inner tubing of the gas well system, to effect flow of hydrocarbon fluids therethrough so as to enable hydrocarbon fluid to be recovered from a gas well system.