Methane Abundance of High-Performance Mining Areas


The experience of conducting clean-up operations on the methane-bearing coal seams shows the inaccuracy of the methods for establishing the category of methane hazard of the mines in high-performance mining areas according to the relative methane abundance. At the same time, the level of the mine category for methane decreases, which does not contribute to the safe conduct of mining operations in terms of the gas factor. The indicator of absolute methane abundance should be considered reliable. The article uses a method based on considering the minute productivity of the shearer, and the intensity of methane release from the main sources. These include the exposed surfaces of the mined seam, coal broken in the face during transportation along the longwall conveyors and workings of the excavation area, as well as close undermined seams and interlayers of the coal. With regard to the sources of methane release in the extraction area, the dependencies are substantiated including a number of factors. 

It is concluded that the intensity of methane release must be determined in the process of coal extraction by a shearer during the working shift, provided for by the planogram of coal mining in the mining area. These measures should be carried out after one or two landings of the rocks of the main roof.

1. Ruban A.D., Zaburdyaev V.S., Zaburdyaev G.S., Matvienko N.G. Methane in the ore mines and mines of Russia: forecast, extraction, and use. Moscow: IPKON RAN, 2006. 312 p. (In Russ.).
2. Kędzior S., Dreger M. Methane occurrence, emissions and hazards in the Upper Silesian Coal Basin, Poland. International Journal of Coal Geology. 2019. Vol. 211. DOI: 10.1016/j.coal.2019.103226
3. Instructions for monitoring the mine air composition, determining the gas content, and establishing the category of mines for methane and/or carbon dioxide: Federal rules and regulations in the field of industrial safety. Ser. 05. Iss. 34. Moscow: ZAO NTTs PB, 2013. 64 p. (In Russ.).
4. Ruban A.D., Zaburdyaev G.S., Zaburdyaev V.S. Geotechnological problems of the development of coal seams dangerous for gas and dust: monograph. Moscow: Nauka, 2007. 279 p. (In Russ.).
5. Instructions for determining and predicting the gas content of coal seams and host rocks during geological exploration. Moscow: Nedra, 1977. 96 p. (In Russ.).
6. Malyshev Yu.N., Trubetskoy K.N., Ayruni A.T. Fundamentally applied solutions to the problem of the coal-bed methane: monograph. Moscow: Akademiya gornykh nauk, 2000. 519 p. (In Russ.).
7. Guidance for the design of the coal mines ventilation. Makeevka: MakNII, 1989. 319 p. (In Russ.).
8. Instruction for degassing of coal mines. Ser. 05. Iss. 22. Moscow: ZAO NTTs PB, 2020. 240 p. (In Russ.).
9. Zaburdyaev V.S., Malinnikova O.N., Trofimov V.A. Methane-rich mines: coal mining, gas emission, methane hazard: monograph. Kaluga: OOO Manuskript, 2020. 334 p. (In Russ.).
10. Ruban A.D., Shatirov S.V., Granin I.V. Gas-coal strategy in the fuel supply of Russia (for the period 2001-2003). Moscow: NNTs GP — IGD im. A.A. Skochinskogo, 2000. 100 p. (In Russ.).
11. Technological schemes for the development of seams in the coal mines. Moscow: IGD im. A.A. Skochinskogo, 1991. 206 p. (In Russ.).
12. Voronyuk Yu.S., Ustinov N.I. Gas content and load of the coal faces during high-performance mining of gas-bearing coal seams in Kuzbass. Gornyy informatsionno-analiticheskiy byulleten = Mining informational and analytical bulletin. 2001. № 5. pp. 49–54. (In Russ.).
13. Ustinov N.I., Zaburdyaev G.S., Voronyuk Yu.S. Coal-methane system: features of the coal seams gas recovery. Sokrashchenie emissii metana: sb. dokl. II Mezhdunar. konf. (Methane mitigation: Proceeding of II International Conference). Novosibirsk: Izd-vo SO RAN, 2000. pp. 465–471. (In Russ.).
14. Khefling G. Alert in 2000: Time bombs on our planet. Moscow: Mysl, 1990. 270 p. (In Russ.).
15. Thomson S, Lunarzewski L. Latest advances in directional — horizontal drilling and gas recovery technologies for underground coal mines. Proceedings of International Conference on Coalbed Methane — Technologies of Recovery and Utilization. Katowice, 1998. pp. 131–143.
16. Karacan C.Ö., Warwick P.D. Assessment of coal mine methane (CMM) and abandoned mine methane (AMM) resource potential of longwall mine panels: Example from Northern Appalachian Basin, USA. International Journal of Coal Geology. 2019. Vol. 208. pp. 37–53. DOI: 10.1016/j.coal.2019.04.005
DOI: 10.24000/0409-2961-2022-6-14-19
Year: 2022
Issue num: June
Keywords : mine working area coal seam methane abundance release intensity
  • Zaburdayev V.S.
    Dr. Sci. (Eng.), Lead Researcher, Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences, Moscow, Russian Federation