Variation characteristics of coal-rock mechanical properties under varying temperature conditions for Shanxi Linfen coalbed methane well in China
| العنوان: | Variation characteristics of coal-rock mechanical properties under varying temperature conditions for Shanxi Linfen coalbed methane well in China |
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| المؤلفون: | Rongxin Li, Haoyang Zhao, Li Xin, Jie Zhang, Qi Qi, Ben Li, Cuinan Li |
| المصدر: | Journal of Petroleum Exploration and Production Technology. 11:2905-2915 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Coalbed methane, business.industry, 0211 other engineering and technologies, 02 engineering and technology, Geotechnical Engineering and Engineering Geology, Stress (mechanics), General Energy, Compressive strength, 020401 chemical engineering, Offshore geotechnical engineering, Fracture (geology), Geotechnical engineering, Coal, 0204 chemical engineering, Deformation (engineering), business, Elastic modulus, Geology, 021101 geological & geomatics engineering |
| الوصف: | In the actual exploitation process of coalbed methane (CBM), as the fluid in the wellbore continues to circulate, the surrounding rock of the CBM well will continuously exchange heat with the fluid in the wellbore, resulting in continuous changes in the temperature of the surrounding rock itself. Linfen, Shanxi is the main exploitation area for CBM in China. This paper aims further to improve the exploitation efficiency of CBM in this area and conducts experimental research on the change characteristics of coal-rock mechanical properties under varying temperature conditions. The experimental results show that under constant pressure conditions, the higher the temperature, the lower the stress value when the coal-rock breaks. In the process of reaching peak strength, the higher the temperature, the higher the proportion of coal-rock plastic deformation in its entire deformation stage. The compressive strength, elastic modulus, and main crack length of coal-rock will decrease with temperature. The Poisson's ratio and primary fracture angle will increase with the increase of experimental temperature. |
| تدمد: | 2190-0566 2190-0558 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ffd4f7b7e2a52e83eb60b47001618f11 https://doi.org/10.1007/s13202-021-01186-2 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........ffd4f7b7e2a52e83eb60b47001618f11 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21900566 21900558 |
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