Condensate cylinder unblocking device and unblocking method

Abstract

The disclosure discloses a plugging removal device and a plugging removal method for a condensate cylinder, which belong to the technical field of coalbed methane development. Includes: purge assembly and exhaust assembly. The purging assembly includes a gas cylinder and an intake valve, the gas outlet of the gas cylinder is communicated with the inlet of the intake valve, and the outlet of the intake valve is used for communicating with the outlet of the liquid discharge pipe of the condensate cylinder. The drain assembly includes a drain valve, and the inlet of the drain valve is used for communicating with the outlet of the drain pipe of the condensate tank. The condensate tank unblocking device dredges the impurities blocked at the bottom of the condensate tank through the high-pressure gas in the gas cylinder, and discharges the accumulated liquid containing impurities to the bottom through the drain valve, so as to realize the blockage removal of the condensate tank without the need for The blocked condensate cylinder can be disassembled and replaced, and the operation is simple, which reduces the cost of removing the blockage of the condensate cylinder.

Description

technical field [0001] The present disclosure relates to the technical field of coalbed methane development, in particular to a plugging removal device and a plugging removal method for a condensate cylinder. Background technique [0002] During the development of coalbed methane or natural gas, the gas is transported from the wellhead to the gas gathering station by the gas pipeline. In the process of gas transportation, due to changes in topography, temperature, pressure, etc., part of the gas will condense into a liquid state. In order to prevent the gas condensed into a liquid state from accumulating in the gas pipeline and causing blockage or freezing damage to the gas pipeline, the gas pipeline is A distance will set the condensate tank to collect the gas liquid and drain the liquid to the ground through the drain pipe. The coalbed methane will carry some impurities such as pulverized coal and fracturing sand during the production process. After the coalbed methane is...

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Problems solved by technology

[0004] In order to effectively collect the effusion in the gas pipeline into the condensate tank, the condensate tank is usually set in a mountainous area with a low altitude and a steep drop in terrain, and the construction work is difficult

At the same time, the replacement of the condensate tank needs to close the gas pipeline connected to it, which affects the normal production of the coal seam well. The pressure fluctuation caused by closing the valve in the gas pipeline will also cause damage to the coal seam reservoir, resulting in the loss of production of the coal seam well.

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