FIELD: mining industry.
SUBSTANCE: method includes converting gas from linked state to gaseous in bed by effecting bed with oscillations from electromagnetic type radiation source placed in well drilled in bed. In gas-saturated coal bed gas from linked state of hard solution is converted to gaseous state. Effecting by oscillations is performed in five stages. First stage includes effecting at frequency 2-25 MHz onto super-sorption particles of coal substance. Second stage includes effecting at frequency 0.7 MHz onto sorption coal particles. Third - at frequency 10-100 MHz for affecting macro-pores of coal. Fourth - at frequency 1 GHz for affecting meso-pores. Fifth - at frequency 88 GHz for affecting coal micro-pores.
EFFECT: higher methane yield from bed in case of industrial extraction.
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