E3S Web Conf.
Volume 174, 2020Vth International Innovative Mining Symposium
|Number of page(s)||6|
|Section||Environment Saving Mining Technologies|
|Published online||18 June 2020|
Study of the Interaction of a Packing Device with a Coal Seam at Interval Hydraulic Fracturing
1 Institute of Coal, Federal Research Center for Coal and Coal Chemistry, 650065 Kemerovo, Russia
2 N.A. Chinakal Institute of Mining, 630091 Novosibirsk, Russia
3 T.F. Gorbachev Kuzbass State Technical University, 650000 Kemerovo, Russia
The technological scheme of the interval hydrodynamic influence on the coal seam is considered. The design of a double-sided packer is presented, the results of laboratory tests to determine the axial movement of the seals during the interval fracturing are shown. The numerical scheme based on the Finite Element Method has been developed for calculating the stress-strain state of a rock in the vicinity of a well, loaded by internal pressure through packer seals. The pressure acting on the contacts between the seals and the well is calculated, the stress distribution in the geomaterial is investigated.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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