ECO-EFFICIENCY ASSESSMENT OF METHANE DRAINAGE TECHNOLOGIES USED AT LONGWALL PANELS IC AND IIC LOCATED AT THE STASZIC-WUJEK HARD COAL MINE

This research was funded by the European Union, Research Fund for Coal and Steel under the project DD-MET “Advanced methane drainage strategy-technology employing underground directional drilling technology for major risk prevention and greenhouse gases emission mitigation” (Grant Agreement No. 847338-DD-MET-RFCS-2018) and by the Polish Ministry of Science and Higher Education (Contract No. 5038/FBWiS/2019/2 and 5073/FBWiS/19/2020/2)."