Triaxial permeability behaviors and structural damage evolution of deep hot dry rock under different cooling stimulation
文献类型：期刊论文
| 作者 | Lu, Jun3,4,5; Jiang, Wang3,5; Pan, Junfeng1; Huang, Jinyong2; Wu, Jiayao2; Shang, Delei3,5; Wu, Mingyang4; Huang, Gun2 |
| 刊名 | GEOENERGY SCIENCE AND ENGINEERING
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 251页码:17 |
| 关键词 | Hot dry rock Permeability behaviors Structural damage Fractal feature Cooling stimulation |
| ISSN号 | 2949-8929 |
| DOI | 10.1016/j.geoen.2025.213896 |
| 英文摘要 | The geothermal exploitation of hot dry rock assumes a pivotal role in mitigating the global energy crisis and propelling the transformation of the energy structure towards a green and sustainable path. Thermal shock stimulation technology, as one of the fundamental and indispensable means in the development of hot dry rock geothermal resources, is capable of effectively augmenting reservoir permeability and enhancing the exploitation efficiency of geothermal resources by inducing micro-fracture networks. In this research, four distinct cooling methodologies, namely natural cooling, water cooling, liquid nitrogen cooling, and cycle liquid nitrogen cooling, were meticulously employed to conduct an in-depth exploration of the damage characteristics and permeability evolution behaviors of the granite pore structure under varying cooling conditions. The experimental findings clearly demonstrate that the pore structure of granite exhibits a pronounced dual-fractal characteristic under different cooling approaches. Moreover, an increase in the cooling rate is conducive to the formation of a more intricate pore and fracture distribution. Upon high-temperature cooling, the strength and ultrasonic wave velocity of granite are remarkably diminished. Low-temperature impact can significantly elevate the permeability of the reservoir, and notably, liquid nitrogen cycle cooling can enhance the permeability of the samples by several times compared to other methods. This study is poised to offer robust underpinnings for fracture creation and permeability enhancement in deep geothermal reservoirs. |
| 资助项目 | National Natural Science Foundation of China[52374222] ; National Natural Science Foundation of China[52404102] ; National Natural Science Foundation of China[52192625] ; National Natural Science Foundation of China[U22A20166] ; Basic and applied basic research project of Guangdong Province[2024A1515010992] ; Open Research Fund of State Key Lab-oratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME022020] ; National Science and Technology Major Project for Deep Earth Exploration[2024ZD1003903] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001471748500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35660]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Huang, Jinyong; Shang, Delei |
| 作者单位 | 1.WISDRI Engn & Res Inc Ltd, Wuhan 430070, Peoples R China 2.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400030, Peoples R China 3.Shenzhen Univ, Coll Civil & Transportat Engn, Guangdong Prov Key Lab Deep Earth Sci & Geothermal, Shenzhen 518060, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 5.Shenzhen Univ, State Key Lab Intelligent Construct & Hlth Operat, Shenzhen 518060, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Jun,Jiang, Wang,Pan, Junfeng,et al. Triaxial permeability behaviors and structural damage evolution of deep hot dry rock under different cooling stimulation[J]. GEOENERGY SCIENCE AND ENGINEERING,2025,251:17. |
| APA | Lu, Jun.,Jiang, Wang.,Pan, Junfeng.,Huang, Jinyong.,Wu, Jiayao.,...&Huang, Gun.(2025).Triaxial permeability behaviors and structural damage evolution of deep hot dry rock under different cooling stimulation.GEOENERGY SCIENCE AND ENGINEERING,251,17. |
| MLA | Lu, Jun,et al."Triaxial permeability behaviors and structural damage evolution of deep hot dry rock under different cooling stimulation".GEOENERGY SCIENCE AND ENGINEERING 251(2025):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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