Temperature Controlled Umbrella Gas Lift Plunger

Abstract

The invention relates to a temperature-controlled umbrella type gas lift plunger, which consists of a non-magnetic stainless steel outer cylinder, a center rod, a magnetic temperature piece, a cylindrical permanent magnet, a spring and umbrella pieces, wherein the outer cylinder is coaxially provided with the center rod, and the umbrella pieces are uniformly distributed and arranged on the outer edge in the middle of the outer cylinder. The temperature-controlled umbrella type gas lift plunger is characterized in that: the center rod is coaxially arranged in the outer cylinder in a sliding mode and is divided into three sections namely a spring section, an umbrella piece section and an opening and closing section; the spring section is arranged at the tail end of the center rod in the outer cylinder; the umbrella piece section is arranged on the center part of the center rod; hinging bases are radially distributed and fixedly arranged on hinging end parts of the umbrella pieces, and the umbrella pieces are hinged on the hinging bases of the center rod; the opening and closing section is arranged at the front end of the center rod, and the front end part of the opening and closing section is coaxially provided with the cylindrical permanent magnet in the outer cylinder in a meshed mode; the magnetic temperature piece is fixedly arranged on the outer cylinder corresponding to the cylindrical permanent magnet; and a percussive cap is arranged at the front end of the outer cylinder. The temperature-controlled umbrella type gas lift plunger changes the production process which is performed by only using an intermittent mode when the current gas lift plunger performs liquid drainage lifting, changes the intermittent mode production into continuous uninterrupted (no well closing) production, greatly improves the working efficiency, and broadens the application range of the gas lift plunger.

Description

technical field

[0001] The invention belongs to the field of oil and gas field equipment, and relates to a device for lifting liquid in oil and gas field development and production wells, in particular to a temperature-controlled umbrella-type gas lift plunger. Background technique

[0002] Gas lift plunger is a device used to isolate gas and liquid in oil and gas field development wells. It is used as a solid interface between gas and liquid to reduce oil and gas channeling and liquid slippage. At present, both domestic and foreign plunger lifting crude oil and liquid drainage gas recovery are intermittent work methods, that is, when the plunger lifts the liquid to reach the wellhead, the well needs to be shut down to stop production to allow the plunger to fall to the bottom of the well again. The opening and closing of the used valve body is completed by hitting the upper and lower retainers or other methods. When the plunger goes down, because the gap between the plunge...

Examples

Embodiment Construction

[0018] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings; the following embodiments are illustrative, not restrictive, and the protection scope of the present invention cannot be limited by the following embodiments.

[0019] The application principle of the present invention is: use the temperature and heat energy in the wellbore to cause thermal deformation of the material or magnetic change of the magnetic temperature material to control the opening and closing of the umbrella and provide energy for the opening and closing of the umbrella; when the plunger is down, Increase the difference between the cross-sectional area of ​​the plunger and the inner cross-sectional area of ​​the tubing; or in other words, when the plunger goes down, the cross-section of the plunger should be smaller, and the entire tubing section can be effectively blocked when the liquid is lifted, To prevent the liquid from slipping and...

technical field

[0001] The invention belongs to the field of oil and gas field equipment, and relates to a device for lifting liquid in oil and gas field development and production wells, in particular to a temperature-controlled umbrella-type gas lift plunger. Background technique

[0002] Gas lift plunger is a device used to isolate gas and liquid in oil and gas field development wells. It is used as a solid interface between gas and liquid to reduce oil and gas channeling and liquid slippage. At present, both domestic and foreign plunger lifting crude oil and liquid drainage gas recovery are intermittent work methods, that is, when the plunger lifts the liquid to reach the wellhead, the well needs to be shut down to stop production to allow the plunger to fall to the bottom of the well again. The opening and closing of the used valve body is completed by hitting the upper and lower retainers or other methods. When the plunger goes down, because the gap between the plunge...

Examples

Embodiment Construction

[0018] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings; the following embodiments are illustrative, not restrictive, and the protection scope of the present invention cannot be limited by the following embodiments.

[0019] The application principle of the present invention is: use the temperature and heat energy in the wellbore to cause thermal deformation of the material or magnetic change of the magnetic temperature material to control the opening and closing of the umbrella and provide energy for the opening and closing of the umbrella; when the plunger is down, Increase the difference between the cross-sectional area of ​​the plunger and the inner cross-sectional area of ​​the tubing; or in other words, when the plunger goes down, the cross-section of the plunger should be smaller, and the entire tubing section can be effectively blocked when the liquid is lifted, To prevent the liquid from slipping and...

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