Laboratory investigation and evaluation of the hydraulic fracturing of marine shale considering multiple geological and engineering factors
文献类型：期刊论文
| 作者 | Wang, Lei; Zhou, Jun; Guo, Yintong; Song, Xuehang; Guo, Wuhao |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2022 |
| 卷号 | 10 |
| 关键词 | hydraulic fracturing marine shale breakdown pressure fracture morphology sensitivity analysis influencing factor |
| 英文摘要 | Hydraulic fracturing is widely implemented in the exploration of marine shale gas. Affected by various geological and engineering factors, gas production after stimulation is not always satisfactory. To reveal the influential effect of multiple factors, laboratory hydraulic fracturing experiments are performed on Longmaxi marine shales by considering key parameters (deviatoric stress, confining pressure, pumping rate, fracturing fluid type, and bedding angle). The variation of breakdown pressures and the characteristics of hydraulic fractures are recorded and analyzed. The results show that the breakdown pressure increases with increasing deviatoric stress, confining pressure, pumping rate, and viscosity of the fracturing fluid. As the bedding angle varies from 0 to 90 the breakdown pressure declines first and increases again. Furthermore, parameter sensitivity analysis indicates that geological factors (confining pressure, bedding angle, and deviatoric stress) would largely determine the breakdown pressure, while engineering factors (pumping rate, fracturing fluid type) could only affect it to a lesser extent. Computed tomography measurements show that natural fractures, originating from tectonic shear failure, could possess greater width than tension-dominated hydraulic and bedding fractures. Statistical analysis shows that the length of the hydraulic fractures alone is only approximately 150 mm. However, the fully activated natural and/or bedding fractures could help substantially increase the total fracture length to 600 mm. Low deviatoric stress, low confining pressure, low viscous slick-water, and high bedding angle are conducive to activating natural and bedding fractures and forming a complex fracture network. The aforementioned findings are valuable for the optimal design of field hydraulic fracturing. |
| 学科主题 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000858954800001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34957]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; Shanghai Advanced Research Institute, CAS |
| 推荐引用方式 GB/T 7714 | Wang, Lei,Zhou, Jun,Guo, Yintong,et al. Laboratory investigation and evaluation of the hydraulic fracturing of marine shale considering multiple geological and engineering factors[J]. FRONTIERS IN EARTH SCIENCE,2022,10. |
| APA | Wang, Lei,Zhou, Jun,Guo, Yintong,Song, Xuehang,&Guo, Wuhao.(2022).Laboratory investigation and evaluation of the hydraulic fracturing of marine shale considering multiple geological and engineering factors.FRONTIERS IN EARTH SCIENCE,10. |
| MLA | Wang, Lei,et al."Laboratory investigation and evaluation of the hydraulic fracturing of marine shale considering multiple geological and engineering factors".FRONTIERS IN EARTH SCIENCE 10(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。