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Journal of Mining Sciences

2014 year, number 4

Sealing of Coal Bed Methane Drainage Holes by Barrier Shielding

M. V. KURLENYA, T. V. SHILOVA, S. V. SERDYUKOV, A. V. PATUTIN
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: coal bed, preliminary methane drainage, methane recovery, degassing hole, sealing

Abstract

The authors have developed the barrier shielding method to seal coal bed methane drainage holes. The method reduces air leakage from enclosing rocks to evacuation holes. The compositions of shields with external seal preventing from fluid leakage to ambiance are offered and analyzed.