| Issue |
E3S Web Conf.
Volume 330, 2021
URM 2021 - International Scientific and Research Conference on Knowledge-Based Technologies in Development and Utilization of Mineral Resources
|
|
|---|---|---|
| Article Number | 01002 | |
| Number of page(s) | 5 | |
| Section | Geotechnology for Integrated Subsoil Development | |
| DOI | https://doi.org/10.1051/e3sconf/202133001002 | |
| Published online | 09 December 2021 | |
Effect of packer design on hydraulic fracturing of coal seam
1 N.A. Chinakal Institute of Mining, Department of Deformable Solids and Granular Media Mechanics, Novosibirsk, 630091, Russia
2 Institute of Coal, Federal Research Center for Coal and Coal Chemistry, Kemerovo, 650065, Russia
* Corresponding author: sv.klishin@gmail.com
The article addresses the issue of in-situ methane drainage from coal seams using multiple hydraulic fracturing. The authors undertake the stress–strain analysis of rock mass in the vicinity of a drainage borehole subjected to loading by sealing packers using the finite element method. The pressures at the packer and borehole wall contacts are calculated. It is shown how the length and spacing of the packers influence the values of the maximum axial tensile stresses on the borehole wall.
© The Authors, published by EDP Sciences, 2021
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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