Authors: O.V. Tailakov, M. Makeev, A.V. Gerasimov, Korovin

Title of the article: Defining of the sources of gas emissions into the atmosphere of longwall on the basis of the measurements of the isotopic composition of the methane carbon

Year: 2017, Issue: 5, Pages: 73-78

Branch of knowledge: Earth sciences

Index UDK: 550.423

DOI: 10.26730/1999-4125-2017-5-73-78

Abstract: To clarify the gas balance of the extraction panel it was proposed to identify the sources of methane migration into the mine workings of underground coal mines based on measurements of the carbon isotope content in this gas. To determine the regularity of the change in the ratio of the content of light isotopes of methane carbon with the depth of occurrence of coal seams in Kuzbass, samples of methane contained in coal and mine atmosphere were taken and tested. The established dependence is used for numerical simulation of the gas distribution in the working face. For two coal mines evaluation of the number of underlying and overlying seams have been performed, which have an effect on the formation of the gas balance of the extraction panel. The proposed approach makes it possible to determine the satellite coal seams that affect the formation of the gas balance of the extraction panel and can be used to design and improve the measures for degassing coal seams, air supply in to the mine workings and improving the safety of mining operations.

Key words: gas balance mine methane isotopic analysis coal seams methane carbon isotopes extraction panel

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