ASSESSMENT OF GAS-BEARING CAPACITY OF COAL-ENCLOSING ROCKS BY FREE GAS UNDER THE LACK OF GEOPHYSICAL PARAMETERS
Based on the data of coal geophysics and petrophysics, a method for determining the gas-bearing capacity of coal-bearing rocks by free gas has been developed, in which the specific electrical resistance of gas-bearing formation is determined from well logging data, and the open porosity coefficient and the specific electrical resistance of the same formation in the water-saturated state are determined from petrophysical data.