FIELD: mining.
SUBSTANCE: method of hydraulic treatment of coal bed is offered, which comprises the periodic fluid supply through the well into the bed with maximum wellhead pressure buildup, mud-pulse bed stimulation by fluid with pressure maintenance within the period required for formation of pre-set sizes and configuration of bed fractures, and bleeding of wellhead pressure of fluid with maximum drop down to atmospheric one with the subsequent discharge of fluid from the well. Also in addition the radial channels are drilled and mud-powered hammer pulse stimulation is created in these channels, and then the fluid flow movement is changed. The mud-pulse stimulations are performed simultaneously in all radially drilled channels or consecutively in each radial channel with subsequent hydraulic fracturing of layer.
EFFECT: providing creation of uniform network of cracks for improvement of efficiency of gas recovery of the layer.
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