中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院页岩气与地质工程重点实验室
Opportunities in Measuring Multiscale Pore Structure of the Continental Shale of the Yanchang Formation, Ordos Basin, China

文献类型：期刊论文

作者Li, Yanyan2; Zhang, Zhihong2; Wei, Siyu3; Yang, Peng1; Shang, Yanjun4
刊名ENERGIES
出版日期2021-09-01
卷号14期号:17页码:12
关键词shale gas pore structure micro-CT nano-CT
DOI10.3390/en14175282
英文摘要Pores of shale exhibit multiscale characteristics, and pore characterization is challenging due to the complexity of pore systems. Currently, research is focused on nano-submicron pores, but the structure of micrometer-scaled pores is not well understood. In this research, an investigation of the three-dimensional pore network of the Chang 7 shale in the Ordos Basin of China was conducted, in order to provide an insight into the full characteristics of pore systems. Nano-CT and micro-CT scanning technology was used to comprehensively delineate the pore structure at different scales, for further understanding the gas storage mechanism in shale rocks. Results show that the radius of micro-scale pores ranges from 1 to 15 mu m, with an average of 2.8 mu m, and pores with radii of 1-5 mu m occupy approximately 90% of all the pores. For the nano-scale pores, the size ranges from 86 to 2679 nm, with an average of 152 nm, yet it has a rather concentrated distribution within 300 nm. The nano-scale pores constitute most of the pore amount in the shale, whereas the micro-scale pores constitute most of the pore volumes. Moreover, the results show that more than 70% of nano-scale pores in the Chang 7 shale are isolated pores, indicating that pore bodies formed in the shale reservoir have poor connectivity. Positive linear relationships between pore sizes and the number of pore throats at the micro-scale and nano-scale were both obtained, suggesting that larger pores tend to have better connectivity than smaller pores.
WOS关键词LONGMAXI FORMATION SHALE ; CHANG 7 MEMBER ; SICHUAN BASIN ; LACUSTRINE SHALE ; NANO-CT ; TIGHT SANDSTONE ; ORGANIC-MATTER ; FIB-SEM ; RESERVOIRS ; PERMEABILITY
资助项目National Natural Science Foundation of China (NSFC)[42077258] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030100]
WOS研究方向Energy & Fuels
语种英语
WOS记录号WOS:000694202200001
出版者MDPI
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/102646]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Li, Yanyan; Zhang, Zhihong
作者单位1.China Geol Survey, Tianjin Ctr, Tianjin 300170, Peoples R China
2.Beijing Univ Technol, Fac Urban Construct, Beijing 100124, Peoples R China
3.China Geol Survey, Oil & Gas Survey, Beijing 100083, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yanyan,Zhang, Zhihong,Wei, Siyu,et al. Opportunities in Measuring Multiscale Pore Structure of the Continental Shale of the Yanchang Formation, Ordos Basin, China[J]. ENERGIES,2021,14(17):12.
APA Li, Yanyan,Zhang, Zhihong,Wei, Siyu,Yang, Peng,&Shang, Yanjun.(2021).Opportunities in Measuring Multiscale Pore Structure of the Continental Shale of the Yanchang Formation, Ordos Basin, China.ENERGIES,14(17),12.
MLA Li, Yanyan,et al."Opportunities in Measuring Multiscale Pore Structure of the Continental Shale of the Yanchang Formation, Ordos Basin, China".ENERGIES 14.17(2021):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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。