Pipeline robot special for removing pulverized coal in coalbed methane exploitation pipeline

Abstract

The invention discloses a pipeline robot special for removing pulverized coal in a coalbed methane exploitation pipeline. The pipeline robot comprises a dredging device, a driving device and a storagedevice, wherein power modules are arranged in the driving device and the storage device, the dredging device is arranged at the front end of the driving device, water passing holes which are throughfront and back are formed in the centers of the driving device and the storage device, a central water passing hose is connected between the rear end of the water passing hole in the driving device and the front end of the water passing hole in the storage device, a plurality of pulverized coal conveying hoses are arranged between the rear end of the driving device and the front end of the storagedevice, and the outer circumference of the driving device and the outer circumference of the storage device each are provided with a plurality of traveling mechanisms. According to the pipeline robotspecial for removing pulverized coal in the coalbed methane exploitation pipeline, the normal mining work of coalbed methane is not affected during pulverized coal clearing operation, the cleared pulverized coal is stored after the blockage of the inner wall of the pipeline is dredged, so that operation is convenient, the automation degree is high, and reliability is high.

Description

technical field [0001] The invention belongs to the technical field of coalbed methane mining, and in particular relates to a pipeline robot specially used for removing coal powder in coalbed methane mining pipelines. Background technique [0002] Hydraulic fracturing is currently the most commonly used and most effective technical means in coalbed methane mining and coalbed methane stimulation. The friction between the fracturing proppant and the fracturing fluid system flowing through the surface of the coal seam and the coal will produce pulverized coal, and the pulverized coal will block the natural fracture system of the coal seam and the pores filled by the proppant, affect the desorption and migration of coalbed gas, and cause the permeability of the coalbed to increase. permanent damage, seriously affecting the gas production of coalbed methane wells. The mixing of coal powder will also increase the viscosity of the liquid, or block the tip of the crack, resulting i...

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Problems solved by technology

[0004] The above measures all need to shut down the gas extraction function periodically to carry out the coal dust removal work, which affects the process and efficiency of gas extraction

The above measures can only be carried out outside the well, which consumes a lot of energy and cannot understand the detailed conditions in the well

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