Constant-pressure fast-assembly type anti-backflow sleeve gas recovery device

Abstract

The invention discloses a constant-pressure fast-assembly type anti-backflow sleeve gas recovery device. The device comprises a first three-way body, a connecting body, a first one-way valve, a pressure adjusting mechanism, a second three-way body and a second one-way valve, wherein the first three-way body comprises a first connecting end, a second connecting end and a third connecting end, the second connecting end and the first connecting end are arranged horizontally, the third connecting end and the first connecting end are arranged at an angle of 90 degrees, the connecting body is arranged in the first connecting end of the first three-way body, the first one-way valve is arranged in the first three-way body, the first one-way valve is connected with the outlet end of the connecting body, the pressure adjusting mechanism is arranged in the second connecting end of the first three-way body, the pressure adjusting mechanism is in transmission fit with the first one-way valve, the second three-way body comprises an upper connecting end, a lower connecting end and a side connecting end, the lower connecting end is vertically opposite to the upper connecting end, the side connecting end and the upper connecting end are laterally arranged at an angle of 90 degrees, the upper connecting end is connected with the third connecting end, and the second one-way valve is arranged in the second three-way body.

Description

technical field [0001] The invention belongs to the technical field of oil well casing gas recovery, and in particular relates to a constant-pressure quick-installation anti-backflow type casing gas recovery device. Background technique [0002] During the production process of oil production wells, free gas, partially dissolved gas and other casing gases will overflow from the casing pipes of oil production wells. The nature of this casing gas is the same as that of natural gas and can be directly burned. However, due to its small output, it is not suitable for industrial exploitation. The collected value. [0003] At present, most of this kind of jacket gas is ignited on the spot with a torch or directly released into the atmosphere for treatment. Such an operation is a waste of resources on the one hand and pollutes the environment on the other hand. Contents of the invention [0004] The purpose of the present invention is to provide a constant-pressure quick-installa...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a constant-pressure quick-installation anti-backflow type casing gas recovery device, which satisfies the need to reasonably control the casing pressure in the wellhead gas collection process of oil wells to collect the casing gas in the casing of the oil production well, and solves the current problem. There are problems of waste of resources and pollution of the environment

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