Investigation of pore structures and flow transport characteristics of continental shale in Dongying Sag
文献类型：期刊论文
| 作者 | Li, Junliang4; Ji, Lili2,3; Jiang, Wenbin2,3; Lin, Mian2,3; Mao, Min1; Wei, Xiaoliang4; Cao, Gaohui3; Qin, Feng4 |
| 刊名 | JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
 |
| 出版日期 | 2025-09-27 |
| 卷号 | 15期号:11页码:20 |
| 关键词 | Continental shale Multiscale pore space Matrix permeability Non-Darcy Anisotropy |
| ISSN号 | 2190-0558 |
| DOI | 10.1007/s13202-025-02079-4 |
| 通讯作者 | Ji, Lili(jilili@imech.ac.cn) |
| 英文摘要 | Multiscale pore-slit structures, non-linear flow and complex lithofacies of continental shale in Dongying Sag present significant challenges for reservoir evaluation and sweet spots identification. This study establishes a comprehensive analytical framework through integrated physical experiments and high-resolution imaging to characterize pore-slit structures and flow dynamics across various lithofacies. Firstly, a novel PSD (pore size distribution) splicing technique is developed by combining multiscale feature extraction and a transformed method, seamlessly uniting nitrogen adsorption data with SEM (scanning electron microscopy) image analysis. Compared with traditional methods, this advanced technique provides a more comprehensive representation of shale pore size distribution and structural characteristics. Three permeability indexes, including the non-Darcy index (Knon-D), anisotropy index (Ka), and slit index (Kf), are proposed to quantify flow behavior based on the cubic-block and matrix permeability experiments. These innovative indexes allow us to explore the complex non-linear flow behaviors, the anisotropic flow properties and pore-slit crossflow characteristics of shale. Comparative analysis reveals distinct pore structure and flow characteristics among different lithofacies: clay-rich shale exhibits high porosity and matrix permeability, while carbonate-rich shale demonstrates stronger nonlinear flow capacity and anisotropic permeability. Finally, the intrinsic relationship between mineral composition, pore structure, and complex flow has been investigated, and the identification charts for porosity and permeability have been established. These findings provide valuable tools for enhanced reservoir evaluation and sweet spot identification in the continental shale formations of Dongying Sag. |
| WOS关键词 | GAS SHALES ; PERMEABILITY ; BASIN ; LONGMAXI |
| 资助项目 | National Natural Science Foundation of China[42030808] ; National Natural Science Foundation of China[41872163] ; National Natural Science Foundation of China[52242402] ; National Natural Science Foundation of China[GJ04010303] ; CAS Project |
| WOS研究方向 | Energy & Fuels ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001581981100001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Project |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/104071]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Ji, Lili |
| 作者单位 | 1.China France Bohai Geoserv Co, Tianjin 300456, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 4.Shengli Oilfield Co, Explorat & Dev Res Inst, SINOPEC, Dongying 257015, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Junliang,Ji, Lili,Jiang, Wenbin,et al. Investigation of pore structures and flow transport characteristics of continental shale in Dongying Sag[J]. JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY,2025,15(11):20. |
| APA | Li, Junliang.,Ji, Lili.,Jiang, Wenbin.,Lin, Mian.,Mao, Min.,...&Qin, Feng.(2025).Investigation of pore structures and flow transport characteristics of continental shale in Dongying Sag.JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY,15(11),20. |
| MLA | Li, Junliang,et al."Investigation of pore structures and flow transport characteristics of continental shale in Dongying Sag".JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY 15.11(2025):20. |
入库方式： OAI收割
来源：力学研究所
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