The method of delineation of methane release zonation on grounds of rock fabric

摘要

The studies in the field of outburst prevention and forecasting are outlined in the article.As a result of the studies it was specified that desorption kinetics of methane from coals of different conditions of ground characterizes the geodynamic condition of a coalbed.It is known that the methane desorption kinetics,more specifically outgassing rate,depends on condition of ground to a large extent.The latter is,in its turn,stipulated by the effect of tectonic forces which cause mechanical destruction of coal accompanied by formation of significant amounts of fine fraction.Consequently,knowledge of kinetics of desorption processes of coal is one of the components of identification of a sheet deposit fault zone.The present methodology is based on the theoretical studies of outgassing of a coal mass with respect to size composing that mass and specifying its condition of ground.