| Issue |
MATEC Web Conf.
Volume 358, 2022
3rd International Symposium on Mechanics, Structures and Materials Science (MSMS 2022)
|
|
|---|---|---|
| Article Number | 01014 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/matecconf/202235801014 | |
| Published online | 19 May 2022 | |
Research on a mechanical model of coal and rock around well based on variable temperature
1 Southwest Petroleum University State Key Laboratory of "Oil and Gas Reservoir Geology and Development Engineering," Chengdu, China
2 School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu, China
3 Engineering Technology Research Institute, PetroChina Southwest Oil and Gas Field Company, Guanghan, China
* Corresponding author: 392509026@qq.com
To analyze the mechanical properties of coal and rock under variable temperature, the mechanical model of coal and rock around the well under variable temperature is studied based on elastic-plastic mechanics and thermodynamic theory. The control equations of coal and rock deformation, seepage field, and temperature field around the well considering temperature and clay mineral content are derived. On this basis, the finite element numerical simulation is carried out by using the relevant parameters obtained from coal and rock mechanics experiments. The numerical simulation results show that the coal rock strength, peak stress, and peak strain show a decreasing trend when the temperature increases and the simulation results of the coal samples are consistent with the experimental results, which verifies the reasonableness of the mechanical model.
© The Authors, published by EDP Sciences, 2022
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.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.