Gas spray based coal seam distance judging method

Abstract

The invention belongs to the technical field of coal seam distance judgment, identification and calculation, and discloses a gas spray based coal seam distance judging method. The gas spray based coalseam distance judging method is based on the coal seam carbon molecular sieve adsorption theory and the principle that adsorption for water spray and humidity is balanced when coal seam occurrence isin a certain constant temperature state and in a certain dry state. The adsorption direction of the water spray is the position where the coal seam is exposed first, when the gas spray is absorbed infrom fractures in the form of lines or no gas spray is discharged from construction of a drilling machine at the operation spot, it indicates that distance from the coal seam is short, and is long ifabsorption is uniform; No absorption and strong gas spray prove that workers are still in the stone drift and do not need to worry about coal. The distance between the mining working face and the coal seam can be accurately judged, mistaken penetration of the coal seam can be prevented under complex geological conditions, and thus, a large quantity of manpower and material resources are saved, operation is simple and convenient, and mining requirements on the coal seam can be met.

Description

technical field [0001] The invention belongs to the technical field of coal seam distance calculation, and in particular relates to a method for judging the distance of a coal seam based on aerosol and judging how much methane will be generated by a coal seam in an unknown area during a desorption process from the magnitude of adsorption strength. Background technique [0002] At present, the commonly used existing technologies in the industry are as follows: at present, there are forward-looking methods and rock formation analysis methods in the industry, which are to use drilling and rock formation lithology parameters to analyze and judge, but the forward-looking methods have limitations in controlling the area, often There is a dead angle between the two holes; under complex geological conditions, due to the lack of a certain rock formation, folds appear in the controlled dead angle, causing this point to be highlighted, and the rock formation analysis method is also the ...

AI Technical Summary

Problems solved by technology

[0006] (3) The operation method and facilities are more complicated

[0007] Difficulty in solving the above technical problems: Under very complex geological conditions, the position of the coal seam cannot be accurately judged, and it is easy to mistakenly penetrate the coal seam (especially a thin coal seam) without knowing the situation, which will affect the mining of the coal seam, and the existing geophysical methods are complicated to operate It is inconvenient and requires a lot of manpower and material resources

Images