Original Paper

UDC 622.245:539.3 V.I. Klishin, G.Yu. Opruk, S.V. Klishin, S.I. Svyazev, 2022

ISSN 0041-5790 (Print) ISSN 2412-8333 (Online) Ugol Russian Coal Journal, 2022, S12, pp. 16-22





Klishin V.I.1, Opruk G.Yu.1, Klishin S.V.2, Svyazev S.I.1

1Coal Institute, Federal Research Center for Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065,Russian Federation

2Mining Institute named after N.A. Chinakal of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630091,Russian Federation

Authors Information

Klishin V.I.,Doctor of Engineering Sciences, Professor, RAS Corresponding, Director, -mail:

Opruk G.Yu.,PhD (Engineering), Head of Efficient Coal Deposits Development Laboratory, -mail:

Klishin S.V.,PhD (Engineering),Senior researcher, -mail:

Svyazev S.I.,Senior engineer


The paper discussed the method of interval hydraulic fracturing (IHF) of a coal seam from uncased boreholes to intensify the process of degassing. Technological schemes of its implementation in the production and development faces are provided. The results of numerical modeling of the stress-and-strain state of the rocks near the borehole where packer seals are installed using the finite element method are presented in the paper. The effect of the fracturing device parameters is determined, allowing to ensure the development of a transverse fracture in relation to the borehole axis due to tensile stresses in the rock mass.


Underground mining, Degassing, Hydraulic fracturing, Fracturing device, Seal, Valve, Borehole, Numerical modeling, Finite element method, Contact problem.


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The research was carried out as part of the Development and implementation of complex technologies in the areas of exploration and extraction of minerals, industrial safety, bioremediation, creation of new deep conversion products from coal raw materials while consistently reducing the environmental impact and risks to human life Integrated Scientific and Technical Programme of the Full Innovation Cycle, approved by Order No. 1144- of the Government of the Russian Federation dated May 11, 2022 (Agreement No. 075-15-2022-1191).

For citation

Klishin V.I., Opruk G.Yu., Klishin S.V. & Svyazev S.I. Intervalhydraulic fracturing of a coal seam to intensify the degassing process . Ugol, 2022, (S12), pp. 16-22. (In Russ.). DOI: 10.18796/0041-5790-2022-S12-16-22.

Paper info

Received November 1, 2022

Reviewed November 15, 2022

Accepted November 30, 2022