Falshtinski'y V. Substantiation of injection solution parameters during mining underground gasification of coal (SPGU)

The parameters of injection full-filling technology of rock layers of roof and goaf of underground gazogenerator for optimization of high-quality and quantitative indexes of underground gasification process of coal seams are considered. The constructions of underground gazogenerators with the injection full-filling in the places of its stratification are developed. The parameters of location of injection by clay solutions of stratified massif containing a gasogenerator in mention of time and space factor are definite. The losses of condensate and gases in a stratified massif during gasification of coal seam, with mention of roof rocks impermeability are defined. The results of industrial and laboratory researches confirm the results of analytical computations, by the authenticity 24,7 %. According to technical-economic parameters of gasification on underground gazogenerators with injection full-filling is determined: decline of prime price of gas, increase of area of coal gasification, rise of degree of gasification of coal seam and heating value of generator gas. Results of researches are accounted in technical and economical substantiation of station "Pidzemgaz" PC "Pavlogradugol" TES 3858-PZ, development of working project of experimental part of station "Pidzemgaz" PC "Pavlogradugol" and methodical documentation for definition of rational parameters of goaf fulfilling in mining hole underground coal gasification.