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Application filed by Институт Физики Горных Процессов Нан УкраиныfiledCriticalИнститут Физики Горных Процессов Нан Украины
Priority to UAA201000168ApriorityCriticalpatent/UA94174C2/en
Publication of UA94174C2publicationCriticalpatent/UA94174C2/en
A method for degassing coal seam includes determination of zone of seam unloading from rock pressure in front of zone of temporary support pressure, drilling of parallel-single wells from extraction working in parallel to line of production face to seam at angleto layer, this depends on length of production face and seam thickness. The mouths of wells are arranged with alternation in ceiling and in bottom.
UAA201000168A2010-01-112010-01-11Method for degassing coal seam
UA94174C2
(en)