Приватне Акціонерне Товариство "Донецьксталь" - Металургійний Завод"
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The method for gasification of a solid fuel seam relates to mining and can be used at development of mineral beds through underground gasification of shale, coal and sulfur seams. According to the invention, in the pre-determined working zone of the seam directed wells are drilled, those are connected in the seam and on the surface, with connection to vacuum-pump, with charging and performing gas-hydro-dynamical break of seam with powder gases for formation of artificial crakes in the working zone, with extraction of natural gas-methane with vacuum method. After that de-gassed working zone of the seam is ignited and gasified to obtain generator gas, at that at period of its extraction preparation of the following working zone of the seam for following cyclic extraction of natural and generator gases is carried out. The invention provides possibility of extraction shale and generator gases, with provision of intensification of the process of underground gasification of solid fuel seam, decrease of expenses and improvement of ecological state of environment.
UAA201213515A2012-11-262012-11-26method for gasification of solid fuel seam
UA103855C2
(en)