Degassing of coal seams using the ground sources
The problems of vibration and vibroseismic impact on low permeability coal seams and oil reservoirs are under consideration. High-performance development of low-permeability gas-bearing coal seams without the use of special measures to reduce methane emissions is hardly feasible. In this regard, the task of improving the performance, safety, and increase of the load on the working face is solved comprehensively by improving technology, technical and economic performance and reduction of gas emissions with new, more efficient methods. One of the major scientific issues in the development gas-bearing coal deposits is the advance preparation for the safe and efficient recess. Methane is recovered from the coal seam using various methods. Degassing can be carried out prior to mining or in the process of it, thus reducing the concentration of methane in the atmosphere of mining to a safe level. Reduction of the content of methane in low permeability coal seam is possible after the change of its properties and its state through mining conditions as well as with a complex impact, defined as the mining and geological impact.