UNDERGROUND MINING
Original Paper
UDC 678.6.762:622.23.05 © Yu.M. Lekontsev, P.V. Sazhin, 2024
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2024, № 11S, pp. 82-85
DOI: http://dx.doi.org/10.18796/0041-5790-2024-11S-82-85
Title
TESTING OF POLYURETHANE SEALS FOR PACKER DEVICES
Authors
Yu.M. Lekontsev, P.V. Sazhin
Federal Research Center for Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation e-mail: kvi194917@mail.ru
Authors Information
Lekontsev Yu.M. – Ph (Engineering), Senior Researcher, Institute of Coal, Federal Research Center for Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: kvi194917@mail.ru
Sazhin P.V. – Ph (Engineering), Senior Researcher, Institute of Coal, Federal Research Center for Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: pavel301080@mail.ru
Abstract
The paper presents the results of analysing mine observations of the balanced packer operation with polyurethane sealing elements and the results of bench testing of these sealing elements made as hollow cylinders for their stability under axial compression. Theoretical calculations of the deformation characteristics of tubular cylindrical polyurethane seals force-fitted on a steel rod and subjected to uniaxial compression are given on the basis of these tests.
Keywords
Balanced seal, sealing element, packer, hydraulic fracturing.
References
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Acknowledgements
The research was carried out with financial support from the Ministry of Science and Higher Education of the Russian Federation 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 ull 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
Lekontsev u.M., Sazhin P.V. Testing of polyurethane seals for packer devices. Ugol’. 2024;(11S):82-85. (In uss.). DOI:10.18796/0041-5790-2024-11S-82-85.
Paper info
Received September 15, 2024
Reviewed October 21, 2024
Accepted October 31, 2024