Plunger lift arrangement
AssigneeWell Master Corporation
InventorsKevin W. Hightower, David A. Green, Neil W. Longfellow, Robert E. Bender
Life of this patent
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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.
Claims16
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 central chamber extending therethrough;
- a cylindrically shaped plug with a longitudinally directed bore extending therethrough is movably arranged within the elongated central chamber of the plunger sleeve, wherein the plug is arranged to displaceably move within the elongated central chamber and to nest within an upper end of the central chamber during upward travel of the plunger assembly in the inner tubing, and wherein the plug is movable within the central chamber during downward travel of the plunger assembly 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.
A method of extracting hydrocarbon fluids from an inner tubing lining a gas well system comprising the steps of:
- forming an elongated plunger with an elongated central chamber extending longitudinally therethrough;
- arranging an elongated cylindrically-shaped plug with a bore extending therethrough, within the elongated central chamber wherein the plug is movable longitudinally within the elongated central chamber;
- arranging the plug containing plunger in the inner tubing lining the gas well system;
- dropping the plug containing plunger in the inner tubing of the gas well system;
- enabling the plug to move to an upper seat engaging position in the elongated central chamber;
- and
- pushing a slug of hydrocarbon fluid upwardly within the inner tubing ahead of the plunger as the plunger moves upwardly within the inner tubing lining the gas well system.
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 comprising:
- an elongated housing sleeve having a longitudinally directed elongated central chamber therethrough, wherein the elongated central chamber has a plug nestable seat at each end thereof;
- and
- an elongated cylindrically-shaped plug with a bore extending therethrough and an arrangement of external, longitudinally-aligned wings thereon, displacably arranged within the elongated central chamber so as to move within the elongated central chamber of the plug 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.
Dependencies are inferred from the claim text.