Present Situation of Gas Extraction Drilling Technology
Abstract
of gas in coal seam, which may cause a series of gas disasters and threaten the safety of personnel. Gas drilling and extraction is the main
means of gas control, and anti-reflection technology and grouting hole sealing technology are the two most important links in the process of
gas extraction. At present, scholars at home and abroad have hydraulic punching, hydraulic fracturing technology and water jet cutting technology for coal seam anti-reflection technology. The hole sealing technology includes cement mortar hole sealing technology, polyurethane
hole sealing technology, two plugging and one injection hole sealing technology and bag hole sealing technology. This article mainly expounds the way, characteristics and application of each technology
Keywords
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DOI: http://dx.doi.org/10.70711/frim.v3i4.6448
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