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Early Gas Extraction Method Study Of High Gassy Coal Seam Group

Posted on:2015-01-18Degree:MasterType:Thesis
Country:ChinaCandidate:L L HuoFull Text:PDF
GTID:2181330434965686Subject:Mining engineering
Abstract/Summary:PDF Full Text Request
Coal mine gas prevention and control is the world common problems which is faced by the coal producing country. It is complexed in Chinese geologicalconditions. It is one of the most serious countries which is affected by the gas. Coal is the main energy in China, which is expected to be accounted for morethan50%in2050.The safety gas in coal mine has always been the first killer, so the gas management is to ensure the safe production of coal mine in china. The main component of coal mine gas is methane, born in the coal seam in the coalseam, storage, controlled by the geological conditions and historical evolution. Because the gas is affected in the actual production (generation, migration,accumulationand distribution) So it is diffcultto accurately predict gas emission. The occurrenceof gas distribution controls the gas composition,emission and gas resources amount. Geological structural complexity is related to coal and gas outburst danger.. Because the small Hui Gou coal mine is a high gas coal mine areas, the mining gas emission is great in the production of coal. The corresponding will happen a lot of gas accident. We can find out a suitable method to treat gas through small Hui Gou coal mine study.In this paper, through the use of a variety of methods to predict the small coal mine and the pumping volume f, calculate the range of gas emission, analyze thegas emission small HuiGoucoal mine,we can obtain the gas distribution and migration law of the mine. Then we can get a suitable method to treat gas emission.
Keywords/Search Tags:gas drainage, gas prediction, gas emission
PDF Full Text Request
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