SU1183664A1 - Gas-lift ejecting plunger - Google Patents

Abstract

GASLIFT EJECTOR PLUGGER, containing housing with mixing and injection chambers, sealing elements, a saddle with a casing installed under it, a shutter. made in the form of a hollow nozzle-shaped pipe installed inside the casing with the possibility of interaction with the saddle, and means for fixing the evil-solution relative to the casing, which is made possible by the fact that, in order to simplify the construction, the casing is made in the form of a glass with circulation and channels, The means for fixing the shutter relative to the casing is made in the form of two magnetic rings, one of which is rigidly connected to the nozzle and the other to the bottom of the glass, and the ci-ma interaction of the magnetic rings С S is selected due to their disconnection The piston is about the bottom hole, and the housing, the shutter and the cup are made of a diamagnetic material.

Description

The invention relates to the oil and gas industry, namely to devices for removing condensate from the bottom of a gas well. The purpose of the invention is to simplify the design. The drawing shows the plunger at the time of immersion in the bottomhole fluid. Punger consists of body 1, mixing chambers 2 and 3 injections, sealing elements 4, seat 5, cup 6 with circulation channels 7, gate 8, top 9 and bottom 10 magnetic rings. The plunger is located inside the column tubing 11, the stop ring 12. The device operates as follows. When a liquid gas accumulates on the bottom of a gas well, the proposed plunger is lowered inside the tubing 1 1. Magnetic Konbiia .9 and 10 are connected, therefore an ascending gas flow, passage through circulation canaps 7 and mixing chamber 2, allows the free fall of body 1 along the pipe string 11 downwards. After the plunger is immersed in the brute fluid and landed on the ring 12 under the action of the body weight 1, the magnetic rings 9 and 10 are disconnected 1 A2 and the shutter 8 is seated on the cejyio 3 The gas flowing from the reservoir raises the plunger upwards. As the plunger is raised upwards, the liquid column rises simultaneously above the plunger. In the process of lifting the liquid, the gas flow, partially from the gate 8, enters the mixing chamber 2 and creates a reduced pressure in the injection chambers 3, as a result of which a part of the liquid from the side of the pipe wall 11 is sucked into the mixing chamber 2 and this prevents the leakage fluid from backing on the bottom. When the injection line is reached, the rising fluid is directed to the injection line and the plunger moves further from this line under the action of inertial forces. At the head of the tubing pipe 11, the pressure above and below the plunger is equalized, the magnetic ring-10 attracts the magnetic ring 9 and the bolt 8 to itself, displacing downward, releasing the flow area of the housing 1. The gas flow, the passage through the circulation channels 7 and the chamber 2 mixes, does not interfere with the free fall of the plunger downwards, after which the cycle repeats.

Claims (1)

GAS LIFT EJECTORί A PLUNGER containing a housing with mixing and injection chambers, sealing elements, a saddle with a casing installed under it, a shutter. made in the form of a hollow nozzle nozzle installed inside the casing with the possibility of interaction with the seat, and means for fixing the shutter relative to the casing, which means that, in order to simplify the design, the casing is made in the form of a glass with circulation channels, means for fixing the shutter relative to the casing, it is made in the form of two magnetic rings, one of which is rigidly connected to the nozzle, and the other to the bottom of the glass, and the interaction force of the magnetic rings is selected from the condition of their disconnection g upon impact of the plunger ra of the hole bottom and the housing, and a shutter glass made of diamagnetic material. 1 18 3664