METHOD OF WINNING COAL FROM GAS-SATURATED SEAM

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 ways u0441u043au0432u0430u0436u0438u043du043du043eu0439 mining u0443u0433u043bu00a0. the increase has been u0438u0437u0432u043bu0435u0447u0435u043du0438u00a0 by u0438u0441u043fu043eu043bu044cu0437u043eu0432u0430u043du0438u00a0 gas u0434u0430u0432u043bu0435u043du0438u00a0 reservoir. u0434u043bu00a0 this u0431u0443u0440u00a0u0442 wells (c) and u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 their u043eu0431u0441u0430u0434u043au0443. then through to the coal layer up solutions of lower strength u0443u0433u043bu00a0 - liquid u043fu043eu043du0438u0437u0438u0442u0435u043bu0438 strength.injection solutions u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 in speed and pressure u043du0430u0433u043du0435u0442u0430u043du0438u00a0 outstanding fracking stratum, i.e. the smaller u0434u0430u0432u043bu0435u043du0438u00a0 u0433u0438u0434u0440u043eu0440u0430u0437u0440u044bu0432u0430, but bigger gas u0434u0430u0432u043bu0435u043du0438u00a0. injection of saline u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 sufficient u0434u043bu00a0 u0432u044bu0442u0435u0441u043du0435u043du0438u00a0 reservoir gas deep cracks u0443u0433u043bu00a0.the number of passes in the pressure during the time u0434u043bu00a0 u043fu0440u043eu043fu0438u0442u044bu0432u0430u043du0438u00a0 and means of sorption u043fu043eu043du0438u0437u0438u0442u0435u043bu0435u0439 strength in coal. under the action of u043au0430u043fu0438u043bu043bu00a0u0440u043du044bu0445 forces fluid leaking from u043cu0430u043au0440u043eu0442u0440u0435u0449u0438u043d deep coal blocks. this leads to an increase in the surface u0443u0433u043bu00a0, which occurred u0430u0434u0441u043eu0440u0431u0446u0438u00a0 anions, and therefore to more reduce the strength of u0443u0433u043bu00a0.at the same time u043fu043bu0430u0441u0442u043eu0432u044bu0439 u043eu0442u0442u0435u0441u043du00a0u0435u0442u0441u00a0 deep gas reservoir. reducing the strength of u0443u0433u043bu00a0 in coal seam leads to facilitate u0440u0430u0437u0440u0443u0448u0435u043du0438u00a0 u0443u0433u043bu00a0.