Pipeline robot for coal seam heating and coal dust removal

Abstract

The pipeline robot used for coal seam heating and coal powder removal includes a ground coiler, a generator, a ground control center and several groups of hollow pipeline robots. The ground coiler is equipped with an intelligent cable winch, and the intelligent cable winch is wound with High-temperature resistant and tensile cables; multiple groups of pipeline robots used in the present invention are connected by resistance wires, and each group of pipeline robots forms a relatively sealed space through high-temperature-resistant airbags and electric valve closures, and uses resistance wires to heat the high-temperature water produced by fracturing water flow The gas mixture is pressed into the coal seam, increasing the gas desorption and improving the permeability of the coal seam, so as to realize the enhanced extraction of coal bed methane. Moreover, the multiple groups of pipeline robots used in the present invention have the function of removing coal powder, and improve the gas production efficiency and gas production volume of coalbed methane wells.

Description

technical field [0001] The invention belongs to the technical field of coal bed gas exploitation, and in particular relates to a pipeline robot used for coal seam heating and coal dust removal. Background technique [0002] Coalbed methane refers to the hydrocarbon gas stored in coal seams with methane as the main component, mainly adsorbed on the surface of coal matrix particles, and partially free in coal pores or dissolved in coal seam water. It is an associated mineral resource of coal and belongs to unconventional Natural gas is a clean, high-quality energy and chemical raw material that has risen internationally in the past ten or twenty years. Due to the generally low permeability of coal seams in my country, the methods and effects of gas drainage are greatly limited. Therefore, how to increase the permeability of coal seams to achieve the purpose of strengthening gas drainage is an important issue facing the coal industry. Experts at home and abroad have proposed ...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned measures all need to shut down the gas production function regularly to remove the pulverized coal, which affects the process and efficiency of gas production. The above-mentioned measures can only be carried out outside the well, which consumes a lot of energy and cannot know the details of the well.

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