Preliminary Experimental Study of Effect of CO2-H2O Biphasic Fluid on Mechanical Behavior of Sandstone under True Triaxial Compression
文献类型：期刊论文
| 作者 | Zhang, Qiang; Hu, Shaobin; Li, Xiaochun ; Shi, Lu
|
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2019 |
| 卷号 | 19期号:2页码:- |
| 关键词 | Geological sequestration CO2-H2O biphasic fluid SEM Microstructure Failure characteristics Integrity of formation |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001334 |
| 英文摘要 | Understanding the mechanical behavior of a reservoir is essential for securing the safety of CO2 storage projects. In this study, the effect of CO2-H2O biphasic fluid on the mechanical behavior and failure characteristics of sandstone was revealed. The preliminary results indicate that CO2-H2O biphasic fluid could significantly affect the mechanical behavior of sandstone, including reducing the strength, elastic modulus, Poisson's ratio, and bulk modulus of sandstone; enhancing the bulk compaction; and postponing the onset dilatancy of sandstone. However, the strength of water-bearing sandstone is weakly increased when CO2 is injected into the sample due to the capillary forces that develop under the unsaturated conditions. In addition, CO2-H2O biphasic fluid notably affects the failure characteristics of sandstone at macro- and microscales. A complex network of cracks is generated at macrostructure scale. The bonds between particles are damaged by CO2-H2O biphasic fluid at the microstructure scale. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000453210200001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15065]  |
| 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 | 1.Hohai Univ, Coll Civil Engn & Transportat, Nanjing 210098, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, Qiang,Hu, Shaobin,Li, Xiaochun,et al. Preliminary Experimental Study of Effect of CO2-H2O Biphasic Fluid on Mechanical Behavior of Sandstone under True Triaxial Compression[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2019,19(2):-. |
| APA | Zhang, Qiang,Hu, Shaobin,Li, Xiaochun,&Shi, Lu.(2019).Preliminary Experimental Study of Effect of CO2-H2O Biphasic Fluid on Mechanical Behavior of Sandstone under True Triaxial Compression.INTERNATIONAL JOURNAL OF GEOMECHANICS,19(2),-. |
| MLA | Zhang, Qiang,et al."Preliminary Experimental Study of Effect of CO2-H2O Biphasic Fluid on Mechanical Behavior of Sandstone under True Triaxial Compression".INTERNATIONAL JOURNAL OF GEOMECHANICS 19.2(2019):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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