Numerical modeling and laboratory testing of reservoir properties of coal

The article offers a brief analytical review of the methods for recording of hydrodynamic parameters of high-head fluid flows which feature pulsewise propagation in fractured porous coal seams. The modern models of physical processes in gas flow in rock samples are discussed. Approaches to interpretation of percolation parameters for the assessment of coal permeability and stimulation of gas recovery are described. The developed numerical model of gas flow in a cylindrical rock specimen, in linear direction and at the pressure gradient at the specimen faces is discussed. The generalized layout and specifications of a bench tester for reservoir properties of coal sampled in roadways of operating mines are presented. The comparative analysis data on coal reservoir properties determined in certain numerical experiments at different gas flow rates and different pressure gradients at sample outlets and in laboratory tests of coal cores show a satisfactory agreement. It is methodologically feasible to use jointly numerical modeling and lab-scale testing of coal reservoir properties to enhance reliability of the estimates. The research findings can be used to improve activities aimed at stimulation of coal seam gas drainage efficiency and mining safety.

Keywords: mine methane, numerical model, fluid, permeability, coal core, coal seam gas drainage, reservoir properties, percolation.
For citation:

Tailakov O. V., Makeev M. P., Utkaev E. A. Numerical modeling and laboratory testing of reservoir properties of coal. MIAB. Mining Inf. Anal. Bull. 2022;(9):99-108. [In Russ]. DOI: 10.25018/0236_1493_2022_9_0_99.


The study was supported by the Russian Foundation for Basic Research, Project No. 20-45-420022 р_а.

Issue number: 9
Year: 2022
Page number: 99-108
ISBN: 0236-1493
UDK: 622.453
DOI: 10.25018/0236_1493_2022_9_0_99
Article receipt date: 16.05.2022
Date of review receipt: 27.07.2022
Date of the editorial board′s decision on the article′s publishing: 10.08.2022
About authors:

O.V. Tailakov1, Dr. Sci. (Eng.), Professor, Chief Researcher, e-mail:, ORCID ID: 0000-0001-5046-0476
M.P. Makeev1, Cand. Sci. (Eng.), Senior Researcher, e-mail:, ORCID ID: 0000-0002-9592-3646,
E.A. Utkaev1, Cand. Sci. (Eng.), Senior Researcher, e-mail:,
1 Federal Research Center of Coal and Coal Chemistry, Siberian Branch of Russian Academy of Sciences, 650065, Kemerovo, Russia


For contacts:

M.P. Makeev, e-mail:


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