Effect of the intermediate principal stress on the evolution of mudstone permeability under true triaxial compression
文献类型：期刊论文
| 作者 | Shi, Lu; Zeng, Zhijiao; Bai, Bing; Li, Xiaochun
|
| 刊名 | GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:1页码:37-50 |
| ISSN号 | 2152-3878 |
| 关键词 | true triaxial testing mudstone intermediate principal stress permeability ductility |
| DOI | 10.1002/ghg.1732 |
| 英文摘要 | The changes in the permeability of mudstone specimens under compression with different intermediate principal stresses (sigma(2)) were tested using a true triaxial testing system. The confining pressure and pore pressure were set based on the caprock conditions in a CO2 geological storage project. The measured permeability initially increased and then decreased before the failure of the specimen and reached a peak in the form of a sudden increase during the formation of the fault. The permeability during compression decreased with increasing sigma(2). However, the higher sigma(2) caused the ductility of the mudstone to decrease significantly and led to the formation of a fault parallel to the sigma(2) direction. The increase in permeability during the formation of the fault was notably suppressed by the increase in the confining pressure and decreased with increasing flatness of the fault; the flatness of the fault increased with increasing sigma(2). Moreover, an empirical function that considers the compressive and dilatant strains was proposed to predict the permeability before the failure of the specimen, and the parameters of this function are only slightly affected by sigma(2). The results of this study reveal the effect of sigma(2) on the variation of the permeability of mudstone and help better assess the risk of caprock leakage in injection projects. (c) 2017 Society of Chemical Industry and John Wiley & Sons, Ltd. |
| WOS研究方向 | Energy & Fuels ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | WILEY PERIODICALS, INC |
| WOS记录号 | WOS:000424802300004 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4213]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech |
| 推荐引用方式 GB/T 7714 | Shi, Lu,Zeng, Zhijiao,Bai, Bing,et al. Effect of the intermediate principal stress on the evolution of mudstone permeability under true triaxial compression[J]. GREENHOUSE GASES-SCIENCE AND TECHNOLOGY,2018,8(1):37-50. |
| APA | Shi, Lu,Zeng, Zhijiao,Bai, Bing,&Li, Xiaochun.(2018).Effect of the intermediate principal stress on the evolution of mudstone permeability under true triaxial compression.GREENHOUSE GASES-SCIENCE AND TECHNOLOGY,8(1),37-50. |
| MLA | Shi, Lu,et al."Effect of the intermediate principal stress on the evolution of mudstone permeability under true triaxial compression".GREENHOUSE GASES-SCIENCE AND TECHNOLOGY 8.1(2018):37-50. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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