Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China
文献类型：期刊论文
| 作者 | Wang, Y; Wang, LH; Wang, JQ; Jiang, Z; Wang, CC; Fu, YN; Song, YF; Wang, YF; Liu, DZ; Jin, C |
| 刊名 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2019 |
| 卷号 | 66期号:-页码:207—216 |
| ISSN号 | 1875-5100 |
| 关键词 | SCANNING-ELECTRON-MICROSCOPY OIL-SHALE SEDIMENTARY-ROCKS MORPHOLOGY PYROLYSIS SEM TERRESTRIAL TOMOGRAPHY ADSORPTION CHALLENGES |
| DOI | 10.1016/j.jngse.2019.04.009 |
| 文献子类 | 期刊论文 |
| 英文摘要 | A typical Longmaxi (LMX) shale sample from Sichuan basin, China, is investigated in three dimensional through multiscale tomography methods spanning pixel sizes from 3.25 mu m to 10 nm, combining X-ray computed tomography and focused ion beam-scanning electron microscopy imaging techniques. Pores, organic matter (OM) and pyrite were segmented and reconstructed at multiple scales and the representative elementary volume (REV) of each phase at different scales based on the convergence of error bars in the volume fraction are determined. Results show that REVs at each scale varied between different phases. The determination of REV defined the applicable scale of different methods as well as the appropriate scales of specific structures. Porosity of LMX shale determined at different scales shows significant difference at two orders of magnitude. This difference likely was caused by structural heterogeneity together with the limitations of methods. This study confirms that REV is a feasible and powerful approach in modeling shale using multiscale 3D imaging. The application of multiscale 3D imaging techniques to worldwide shale gas reservoirs could allow for significant insights into the assessment of migration mechanisms within low-permeability systems. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31720]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Hubei Univ Arts & Sci, Xiangyang 441053, Peoples R China 2.Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan; 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China; 5.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Y,Wang, LH,Wang, JQ,et al. Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2019,66(-):207—216. |
| APA | Wang, Y.,Wang, LH.,Wang, JQ.,Jiang, Z.,Wang, CC.,...&Jin, C.(2019).Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,66(-),207—216. |
| MLA | Wang, Y,et al."Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 66.-(2019):207—216. |
入库方式： OAI收割
来源：上海应用物理研究所
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