Protection of Operating Degassing Wells from Air Flow from Underground Excavations
T. V. SHILOVA, S. V. SERDYUKOV
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: угольный пласт, дегазационная скважина, направленный гидроразрыв, непроницаемый экран, предотвращение подсосов воздуха, давление разрыва, скважинное оборудование, coal bed, degassing well, directional hydraulic fracturing, impermeable screen, air leak-in prevention, fracturing pressure, well equipment
Abstract
The article considers the method of recovering structural integrity of operating degassing wells without outage and the scheme of cross-wise hydraulic fracturing in well bottom zone using mechanical anchor. Advantages of the scheme with anchor are discussed as against directional fracturing with a slot initiator. The technical solutions on protection of methane drainage zone from air leaks from underground excavations are presented.
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