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The study considers the problem of low economic efficiency of degassing of coal mines. Methane in coal seams is in a bound sorbed state. This demands additional expenses aimed at breaking of the coal/methane link and intensification of gas production. In addition, the flow rates of gas wells drilled in the coal seams are generally lower than traditional flow rates of gas well. In this regard, projects of methane extraction from coal beds have higher costs and lower revenues compared with the projects on gas production from traditional sources. However, the extraction of methane from coal seams solves a number of problems in the coal industry, not typical for conventional gas production, the solution of which leads to additional economic effects, significantly improves the effectiveness of projects, aimed at recovering of methane from coal seams. The article describes the main effects caused by the degassing of coal mines: reduction of accidents associated with the explosion of methane; improvement in the use of the front of mining operations in coal mines due to a decrease in the influence of the «gas factor»; reduction of methane emissions into the atmosphere; the use of the extracted methane. Author shows the technique of calculating economic effects in the of coal mines degassing of projects. He also presents the formulas for the calculation of these effects. The research has an analysis of the relationship between all economic effects.

The article is concerned with the questions of determining the economic efficiency of methane from coal bed deposits. Demands of national economy in natural gas and products of its processing dictate the need of involvement in the development of non-traditional sources of gas production, which include gas containing coal beds. All projects on extraction of methane from coal beds can be divided on two types: projects of degasification of coal mines and projects on production of methane of coal beds as a self-contained mineral deposit (commercial production). An important difference is that the industrial work with boreholes from the surface allows to extract methane-air mixture with high content of methane. At that unlike degasification the whole methane that was received during commercial production is on spec. Peculiarities of identifying the economic effect from the usage of coal bed methane, during various methods of resources development of coal-gas, additionally methodic approach to selection of one of the directions of developing of coal methane deposits are provided in the article. Additionally the article reviews historical questions of developing the coal methane processing. Main directions of processing of coal methane depending on the content of methane in methane-air mixture. Dependence on the selection of a specific option of methane usage from such economical and organizational factors as cost value on creation of processing plants on corresponding usage direction, size of economic effect from the usage of methane on this direction, organization-economic mechanism of project participants on methane extraction, specific needs of project participators in specific conversion products.