Uninterrupted plunger drainage gas recovery device and uninterrupted plunger drainage gas recovery method

Abstract

The invention relates to the technical field of gas recovery tools, in particular to an uninterrupted plunger drainage gas recovery device and an uninterrupted plunger drainage gas recovery method. The uninterrupted plunger drainage gas recovery device comprises a gas well, a gas recovery tree, a gas conveying pipeline, a blow-out control pipe, a plunger body, a sealing ball and an adapting pipe.The gas recovery tree is arranged on the gas well, and the blow-out control pipe is arranged above the gas recovery tree and comprises an upper hood, a lower pipe body, an inner bush, a center rod, abuffer rubber barrel and a pipeline joint. The uninterrupted plunger drainage gas recovery method comprises the following step that the adapting pipe, the sealing ball and the plunger body are sequentially put into an oil pipe in the gas well. According to the uninterrupted plunger drainage gas recovery device and the uninterrupted plunger drainage gas recovery method, the structure is reasonableand compact, and use is convenient; the plunger body and the sealing ball are separated through the center rod, and the sealing ball falls back into the well to cooperate with the adapting pipe to achieve well bottom pressure maintaining; after the well pressure is reduced, the plunger body falls back into the well to be recombined with the sealing ball; when the well bottom pressure is sufficient, the sealing body and the plunger body continue to be pushed to move upwards; operation is repeated in this way to achieve uninterrupted plunger drainage gas recovery work; and the advantages of rapidness, reliability and high efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of gas extraction tools, and relates to an uninterrupted plunger drainage gas extraction device and an uninterrupted plunger drainage gas extraction method. Background technique [0002] During the operation of traditional plunger drainage and gas production, the valves on the gas production tree need to be closed frequently, which requires a long time for shutting down the well and cannot provide uninterrupted production. Therefore, the problems of short production time and low single well production are caused, which affect the production efficiency of gas wells and cannot realize the efficient development of gas fields. On the other hand, the existing blowout preventer cannot meet the replacement requirements of the plunger, making it difficult to replace the plunger. fall to the valve plate of the main valve of the gas tree, and then use the salvage tool to salvage the plunger from the gas tree. Since t...

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Problems solved by technology

[0003] The invention provides an uninterrupted plunger drainage gas recovery device and an uninterrupted plunger drainage gas recovery method, which overcome the above-mentioned deficiencies in the prior art, and can effectively solve the problems caused by frequent well shut-in in the existing plunger drainage gas recovery. The problem of short production time and low gas production efficiency; it can further solve the problem that the existing plunger is not easy to take out from the blowout preventer

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