Analysis of the Natural Methane Content of Boldyrevsky Seam at S.M. Kirov Mine of JSC SUEK-Kuzbass


Annotation:

S.M. Kirov mine of JSC SUEK-Kuzbass develops Boldyrevsky and Polenovsky seams and is classified as a super-category for methane. Under these conditions, the development of seams requires a set of measures for their degassing. Methods and parameters for degassing the main sources of methane release in the coal mines are selected considering the faces gas content.  It is calculated based on the natural methane content of the coal seams and host rocks determined at the stage of geologic exploration activity.
The aim of the work conducted by the authors is to establish the actual distribution of natural methane seam Boldyrevsky based on the analysis of research results of the coal-gas samples and experimental evaluation of the residual gas content in the mine workings.
Natural gas content of the mine field of S.M. Kirov JSC SUEK-Kuzbass mine was determined based on the analysis of 538 coal-gas samples on 30 seams. All the coal and gas samples taken from Boldyrevsky seam were analyzed.  Distribution of the actual values of natural methane content from the hypsometric depths of the seam was plotted. Distribution was plotted concerning the actual values of natural methane from hypsometric depths of the formation. The obtained data were compared with the results of experimental determination of the residual gas content of Boldyrevsky seam from the mine workings. Based on the results obtained, CH4 isogases were constructed based on the actual and maximum values of the natural methane content in Boldyrevsky seam.
It is established that the natural methane content of Boldyrevsky seam, that was determined at the stage of geological exploration for the entire field of S.V. Kirov mine, has overestimated values — by 35–40 % compared to the actual data, and by 25–30% in relation to the maximum actual data.

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DOI: 10.24000/0409-2961-2021-3-61-66
Year: 2021
Issue num: March
Keywords : methane content coal bed degassing gas content gas release natural gas content residual gas content isogases coal core core set
Authors:
  • Fedorov E.V.
    Fedorov E.V.
    Cand. Sci. (Eng.), Department Head, evfedorov58@gmail.com IPCON RAN, Moscow, Russia
  • Kulibaba S.B.
    Kulibaba S.B.
    Dr. Sci. (Eng.), Prof., Leading Researcher, kulibaba_s@ipkonran.ru IPСON RAN, Moscow, Russia
  • Meshkov A.A.
    Meshkov A.A.
    Deputy General Director — Technical Director JSC «SUEK-Kuzbass», Leninsk-Kuznetsky, Russia