EFFECTIVENESS OF METHANE DRAINAGE IN THE COAL MINES OF KOMPANIA WEGLOWA S.A. – EXISTING LIMITATIONS

World Mining Congress
The paper presents the conditions for determining the selection of methods for methane drainage in Polish hard coal mines. Various factors for the evaluation of methane drainage performance are used, including the methane drainage effectiveness ratio. However, as will be discussed there are limitations to the methane drainage ratio approach resulting from the characteristics of the deposits extracted in Kompania Węglowa S.A. coal mines.
Keywords: methane; Drainage; coal mines; Coal mine; Capacity; Ventilation; Mine; Mines; Bearings;
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