EXPERIMENTAL EVALUATION DATA ON GAS CONTENT OF WORKING COAL SEAMS IN KIROV MINE

Evaluation of current gas content of Boldyrev and Polenov coal seams operated by Kirov Mine, SUEK-Kuzbass is presented. The gas content procedure is based on direct measurement of gas emission from a core sample of coal. The procedure provides measurement of in-situ gas emission volumes (converted by inverse extrapolation to: gas volume ‘lost’ between the moments of core taking and sealing in a container—V1; gas volume released from the core in the laboratory under the atmospheric pressure—V2; and residual gas volume liberated from the core sample during its milling in an airtight mill down to a size of 0.2 mm—V3). The study of the effect exerted by the core taking depth on the core quality and coal gas content value shows that the optimal depth of core taking should be not more than 15–20 m from roadway sidewall. The experimental data obtained in different conditions are analyzed and compared with the estimates of natural gas content at the stage of geological exploration (iso-gas CH4) as well as with the factual data from the nearest boreholes.

For citation: Fedorov E.V., Shenin D.S. Experimental evaluation data on gas content of working coal seams in Kirov Mine. Gornyy informatsionno-analiticheskiy byulleten'. 2019;5:51-58. [In Russ]. DOI: 10.25018/0236-1493-2019-05-0-51-58.

Keywords

Procedure, methane content, gas content, natural gas content, residual gas content, standard, coalbed drainage, coal core, gas release, core sampler.

Issue number: 5
Year: 2019
ISBN: 0236-1493
UDK: 622.33
DOI: 10.25018/0236-1493-2019-05-0-51-58
Authors: Fedorov E. V., Shenin D. S.

About authors: E.V. Fedorov, Candidate of Technical Sciences, Head of Department, Institute of Problems of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences, 111020, Moscow, Russia, e-mail: evfedorov58@gmail.com, Shenin, Chief Engineer, S.M. Kirov Mine JSC «SUEK-Kuzbass», Leninsk-Kuznetsky, Russia. Corresponding author: E.V. Fedorov, e-mail: evfedorov58@gmail.com.

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