Mechanical and Acoustic Response of Low-Permeability Sandstone under Multilevel Cyclic Loading-Unloading Stress Paths
文献类型：期刊论文
| 作者 | Tan, Hongying1,2; Liu, Hejuan2,3; Shi, Xilin2,3; Ma, Hongling2,3; Qiu, Xiaosong4; Guo, Yintong2,3; Ban, Shengnan2,3 |
| 刊名 | ENERGIES
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 16期号:19页码:18 |
| 关键词 | low-permeability sandstone multilevel cyclic loading confining stress deformation acoustic emission microscopic cracks |
| DOI | 10.3390/en16196821 |
| 英文摘要 | Low-permeability sandstone reservoirs have been widely used as a gas storage medium worldwide. Compared with the high porosity and high permeability of sandstone, low-permeability sandstone may present different mechanical (deformation, damage or failure) and acoustic responses under cyclic loading-unloading processes caused by the high-rate injection-production of underground gas storage. In this paper, multistage triaxial loading-unloading tests with a continuously increased upper limit of stress were carried out on low-permeability sandstone under six different confining pressures. The results showed that the superposition of stress-strain curves become much denser in the process of each level of stress. Based on the variation of the elastic modulus of low-permeability sandstone under alternating loads, the mechanical behavior of low-permeability sandstone under cyclic loading is divided into three stages: cyclic hardening, stability and cyclic softening. According to the evolution of acoustic emission (AE) signal parameters, AE counts appear intensively at the initial stage of each level of stress and then gradually stabilize. The peak frequency presents the zonal distribution, which is divided into low-frequency, intermediate-frequency and high-frequency zones. Low confining pressure leads to a small b-value. The RA-AF distribution implies that the mixed tensile-shear cracks are continuously generated in low-permeability sandstone during the cyclic loading process, and the shear cracks are more obviously developed. |
| 资助项目 | CAS Pioneer Hundred Talents Program[Y826031C01] ; National Natural Science Foundation[U22A20166] ; Key Research and Development Program of Hubei Province[2022BAA093] ; Key Research and Development Program of Hubei Province[2022BAD163] ; Major Science and Technology Research and Development Special Program of Jiangxi Provincial[2023ACG01004] |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001083104900001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39641]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Hejuan |
| 作者单位 | 1.Chongqing Univ, State Key Lab Coal Mine Disaster & Control, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.China Natl Petr Corp, Key Lab Underground Storage Oil & Gas Engineer, Langfang 065007, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Hongying,Liu, Hejuan,Shi, Xilin,et al. Mechanical and Acoustic Response of Low-Permeability Sandstone under Multilevel Cyclic Loading-Unloading Stress Paths[J]. ENERGIES,2023,16(19):18. |
| APA | Tan, Hongying.,Liu, Hejuan.,Shi, Xilin.,Ma, Hongling.,Qiu, Xiaosong.,...&Ban, Shengnan.(2023).Mechanical and Acoustic Response of Low-Permeability Sandstone under Multilevel Cyclic Loading-Unloading Stress Paths.ENERGIES,16(19),18. |
| MLA | Tan, Hongying,et al."Mechanical and Acoustic Response of Low-Permeability Sandstone under Multilevel Cyclic Loading-Unloading Stress Paths".ENERGIES 16.19(2023):18. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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