Degree of Susceptibility of the Gas-Bearing Coal Massif to Changes under Vibration and Technical Solutions for Increasing Methane Extraction from the Reservoir

Application of the vibration effects for effective preparation of a low-permeability coal seam is a promising process, which requires to be continuously improved.The main difficulty of the theoretical research in this area is that the coal seams are very diverse in their properties and represent complex environment.During the vibration action, their volume and filtration characteristics change, which leads to the change of the massif structure and amount of the pore-crack space in the coal.This effect can be controlled.