Experimental Investigation into the Process of Hydraulic Fracture Propagation and the Response of Acoustic Emissions in Fracture-Cavity Carbonate Reservoirs
文献类型：期刊论文
| 作者 | Yang, Hanzhi3,4; Wang, Lei2; Bi, Zhenhui2; Guo, Yintong2; Gui, Junchuan1; Zhao, Guokai4; He, Yuting2; Guo, Wuhao2; Qiu, Guozhou2 |
| 刊名 | PROCESSES
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 12期号:4页码:20 |
| 关键词 | fracture-cavity carbonate cavity cluster distribution interaction behavior fracture propagation acoustic emission monitoring |
| DOI | 10.3390/pr12040660 |
| 英文摘要 | Fracture-cavity carbonate reservoirs account for a considerable proportion of oil and gas resources. Because of the complicated relationships between cavities, fractures and pores in these reservoirs, which are defined as cavity clusters, fracturing technology is employed to enhance their hydrocarbon productivity. However, almost all previous studies have just considered the effect of a single natural cavity or fracture on the propagation of a hydraulic fracture; therefore, the mechanism by which a hydraulic fracture interacts with a cavity cluster needs to be clarified. In this study, cavity clusters with different distributions were accurately prefabricated in synthetically made samples, and large-scale simulation equipment was employed to systematically perform fracturing experiments considering different horizontal differential stress levels. Meanwhile, the hydraulic fracture propagation behaviors were comprehensively analyzed through fracture morphology, fracturing curves, the complexity of the fracture network and acoustic emission monitoring. It was found that a natural fracture with a smaller approach angle is favorable in guiding a hydraulic fracture to a cavity. The fracturing curves were divided into the following four types: frequent fluctuations with "step-like" shapes, great fluctuations with slightly lower closure pressure, fluctuations with obviously lower closure pressure, and little fluctuations with obviously lower closure pressure. And different cavity cluster distributions play a dominant role in the complexity of generated hydraulic fracture networks. In addition, AE energy was used to judge the ease of crossing the cavity. The above findings indicated that for the actual exploration and exploitation of carbonate reservoirs, the geological exploration of different fracture-cavity structures in reservoirs would be required, and targeted fracturing engineering designs need to be carried out for different fracture-cavity carbonate reservoirs. |
| 资助项目 | National Natural Science Foundation of China ; China Scholarship Council |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001209994900001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41184]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Lei |
| 作者单位 | 1.PetroChina Southwest Oil & Gas Field Co, Shale Gas Res Inst, Chengdu 610051, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Alberta, Dept Civil & Environm Engn, Edmonton, AB T6G 1H9, Canada 4.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Hanzhi,Wang, Lei,Bi, Zhenhui,et al. Experimental Investigation into the Process of Hydraulic Fracture Propagation and the Response of Acoustic Emissions in Fracture-Cavity Carbonate Reservoirs[J]. PROCESSES,2024,12(4):20. |
| APA | Yang, Hanzhi.,Wang, Lei.,Bi, Zhenhui.,Guo, Yintong.,Gui, Junchuan.,...&Qiu, Guozhou.(2024).Experimental Investigation into the Process of Hydraulic Fracture Propagation and the Response of Acoustic Emissions in Fracture-Cavity Carbonate Reservoirs.PROCESSES,12(4),20. |
| MLA | Yang, Hanzhi,et al."Experimental Investigation into the Process of Hydraulic Fracture Propagation and the Response of Acoustic Emissions in Fracture-Cavity Carbonate Reservoirs".PROCESSES 12.4(2024):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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