Study on the Hydraulic Fracturing of the Inter-Salt Shale Oil Reservoir with Multi-Interfaces
文献类型：期刊论文
| 作者 | Li, Daihong1,2; Zhang, Xiaoyu3; Chen, Zhixiang1 |
| 刊名 | PROCESSES
 |
| 出版日期 | 2023 |
| 卷号 | 11期号:1页码:- |
| 关键词 | deep ground energy hydraulic fracture shale salt interface exploitation efficiency |
| 英文摘要 | Hydraulic fracture morphology and propagation mode are difficult to predict in layers of the various lithological strata, which seriously affects exploitation efficiency. This paper studies the fundamental mechanical and microscopic properties of the two main interfaces in inter-salt shale reservoirs. On this basis, cement-salt combination samples with composite interfaces are prepared, and hydraulic fracturing tests are carried out under different fluid velocities, viscosity, and stress conditions. The result shows that the shale bedding and salt-shale interface are the main geological interfaces of the inter-salt shale reservoir. The former is filled with salt, and the average tensile strength is 0.42 MPa, c = 1.473 MPa, and phi = 19.00 degrees. The latter is well cemented, and the interface strength is greater than that of shale bedding, with c = 2.373MPa and phi = 26.15 degrees. There are three basic fracture modes for the samples with compound interfaces. Low-viscosity fracturing fluid and high-viscosity fracturing fluid tend to open the internal bedding interface and produce a single longitudinal crack, respectively, so properly selecting the viscosity and displacement is necessary. Excessive geostress differences will aggravate the strain incompatibility of the interface between different rock properties, which makes the interfaces open easily. The pump pressure curves' morphological characters are different with different failure modes. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000927198000001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34999]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW 2052, Australia 3.China Gezhouba Group Three Gorges Construction Engineering Co., Ltd., Yichang 443000, China |
| 推荐引用方式 GB/T 7714 | Li, Daihong,Zhang, Xiaoyu,Chen, Zhixiang. Study on the Hydraulic Fracturing of the Inter-Salt Shale Oil Reservoir with Multi-Interfaces[J]. PROCESSES,2023,11(1):-. |
| APA | Li, Daihong,Zhang, Xiaoyu,&Chen, Zhixiang.(2023).Study on the Hydraulic Fracturing of the Inter-Salt Shale Oil Reservoir with Multi-Interfaces.PROCESSES,11(1),-. |
| MLA | Li, Daihong,et al."Study on the Hydraulic Fracturing of the Inter-Salt Shale Oil Reservoir with Multi-Interfaces".PROCESSES 11.1(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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