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Information × Registration Number 0219U005346, 0115U005753 , R & D reports Title Providing scientific and technical assistance in tests hydrodynamic method for degassing and reducing gasdynamic activity of the coal seam in the bottom of over-head longwall popup.stage_title Head Sofiyskij Konstantin Konstantinovich, Доктор технічних наук Registration Date 11-09-2019 Organization The Polyakov Institute of geotechnical mechanics of NAS of Ukraine popup.description2 The object of research is the processes occurring in a strained lawn-saturated coal-rock massif under hydrodynamic action through long technological wells. The subject of research is the parameters of the method of hydrodynamic impact on a steep coal seam. Research methods - on the basis of mining experimental studies on the application of the method of hydrodynamic impact on the coal seam k8 - "Kamenka" of lava No. 95-1160 m, the process of gas evolution from the treated zone after exposure to the lower part of the lava of section No. 95 and analytical calculations of indicators of hydrodynamic impact efficiency determined the dynamics of changes in the average daily concentration of methane in the outgoing air stream from the site, as well as the radius of zones of intense gas evolution. The methane concentration in the outgoing air stream from the site, daily coal production and the amount of air supplied for airing determined the degassing ratio of the coal seam sections through technological wells No. 11, No. 12, No. 13 and No. 14, the radii of intensive methane release zones and coefficients intensification of reservoir degassing. The efficiency of applying the hydrodynamic impact method for intensifying degassing and reducing the gas-dynamic activity of the coal seam areas in the zone of influence of technological wells is established. Cleaning work in the lower part of the lava of plot No. 95 was carried out without signs of gas-dynamic phenomena. HYDRODYNAMIC IMPACT, COEFFICIENT DEGASATION, DEFASATION INTENSIFICATION COEFFICIENT, MEDIUM SITTING CONCENTRATION, TECHNOLOGICAL WELLS. Product Description popup.authors Агаєв Руслан Агагулаєвич Власенко Василь Вікторович Петух Олександр Петрович Притула Дмитро Олександрович Софійський Костянтин Костянтинович Шейко Анатолій Васильович popup.nrat_date 2020-04-02 Close