GEOTECHNOLOGY


Original Paper

 

UDC 681.883:622.35:550.34:550.83 © O.V. Tailakov, E.A. Utkaev, S.V. Sokolov, E.A. Saltymakov, M.P. Makeev, 2024

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2024, № 11S, pp. 152-156

DOI: http://dx.doi.org/10.18796/0041-5790-2024-11S-152-156

Title

MONITORING THE STABILITY OF DEGASSING WELLS AND THE PROCESS OF HYDRAULIC FRACTURING OF COAL SEAM IN GEOPHYSICAL OBSERVATIONS

 

Authors

O.V. Tailakov, E.A. Utkaev, S.V. Sokolov, E.A. Saltymakov, M.P. Makeev

Federal Research Center for Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation  e-mail: oleg2579@gmail.com

Authors Information

Tailakov O.V. – Doctor of Engineering Sciences, Professor, Chief Scientific Officer, Institute of Coal, Federal Research Center for Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: oleg2579@gmail.com

Utkaev E.A. – Ph (Engineering), Head of the Laboratory of Coalbed Methane Resources and Recovery Technologies, Institute of Coal, Federal Research Center for Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: utkaev@mail.ru

Sokolov S.V. – Ph (Engineering), Senior Researcher, Institute of Coal, Federal Research Center for Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: sokolovsviuu@bk.ru

Saltymakov E.A. – Head Engineer, Institute of Coal, Federal Research Center for Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: easaltymakov@yandex.ru

Makeev M.P. – Ph (Engineering), Senior Researcher, Institute of Coal, Federal Research Center for Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: makeev75@ya.ru

Abstract

An original approach to monitoring interval hydraulic fracturing of a coal seam is proposed and tested. The echolocation method is used to assess the well condition, followed by the development of recommendations for the placement of hydraulic impact equipment in it. The scheme for connecting an autonomous pressure gauge to the hydraulic system is modified, and the geophysical data recorded with its help are analyzed to assess the formation of technogenic cracks. Modern approaches to filtering and chamber processing of in-situ observation data in mine conditions are used. The convergence of the results obtained in studying the stability of wells using the echolocation and geophysical methods is shown.

Keywords

Interval hydraulic fracturing, residual foulness, seismic scanning, hydrodynamic impact monitoring, natural electromagnetic impulses, echolocation, methane yield, coalbed, geophysical research.

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Acknowledgements

The research was carried with financial support of the Ministry of Science and Higher Education of the Russian Federation 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-р of the Government of the Russian Federation dated May 11, 2022 (Agreement No. 075-15-2022-1191).

For citation

Tailakov O.V., Utkaev E.., Sokolov S.V., Saltymakov E.., Makeev M.P. Monitoring the stability of degassing wells and the process of hydraulic fracturing of coal seam in geophysical observations. Ugol’. 2024;(11S): 152-156. (In uss.). DOI: 10.18796/0041-5790-2024-11S-152-156.

Paper info

Received September 15, 2024

Reviewed October 21, 2024

Accepted October 31, 2024

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