Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous Media
In natural micro-nanoscale porous media, the movable fluid porosity can effectively represent storage and permeable properties, but various mineral compositions have complicated effects on it. Taking saline lacustrine shale as an example, this study researched the effects of mineral composition on m...
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MDPI AG
2023-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/13/5166 |
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| author | Quanqi Dai Yangwen Zhu Yingfu He Rui Wang Da Zheng Yinbang Zhou Yunfeng Liu Guiwen Wang Hao Wu |
| author_facet | Quanqi Dai Yangwen Zhu Yingfu He Rui Wang Da Zheng Yinbang Zhou Yunfeng Liu Guiwen Wang Hao Wu |
| author_sort | Quanqi Dai |
| collection | DOAJ |
| description | In natural micro-nanoscale porous media, the movable fluid porosity can effectively represent storage and permeable properties, but various mineral compositions have complicated effects on it. Taking saline lacustrine shale as an example, this study researched the effects of mineral composition on movable fluid porosity, based on nuclear magnetic resonance (NMR), focused ion beam (FIB), and x-ray diffraction (XRD) experiments. The results show that movable fluid porosity exhibits a stronger dependence on porosity than movable fluid saturation does. Micropores (<100 nm) and macropores (>1000 nm) are mostly developed in silicate and gypsum minerals, and have a highly heterogeneous distribution. In contrast, carbonate intercrystalline pores are dominated by mesopores (100−1000 nm), and behave strongly heterogeneously. Many mesopores play a positive role in generating highly movable fluid porosity, but the development of micropores and macropores is not conducive to an increase in movable fluid porosity. Overall, a significant negative effect is observed between silicate mineral content and movable fluid porosity, and carbonate mineral content has a strong positive effect on movable fluid porosity, whereas movable fluid porosity exhibits a relatively small reduction with an increase in the gypsum. |
| first_indexed | 2024-03-11T01:42:35Z |
| format | Article |
| id | doaj.art-f3ff03cd539e463ea94a74162f83fb35 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T01:42:35Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f3ff03cd539e463ea94a74162f83fb352023-11-18T16:31:23ZengMDPI AGEnergies1996-10732023-07-011613516610.3390/en16135166Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous MediaQuanqi Dai0Yangwen Zhu1Yingfu He2Rui Wang3Da Zheng4Yinbang Zhou5Yunfeng Liu6Guiwen Wang7Hao Wu8State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, ChinaState Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, ChinaState Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, ChinaState Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, ChinaState Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, ChinaState Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, ChinaCollege of Geosciences, China University of Petroleum—Beijing, Beijing 102249, ChinaSchool of Earth Sciences, Lanzhou University, Lanzhou 730000, ChinaIn natural micro-nanoscale porous media, the movable fluid porosity can effectively represent storage and permeable properties, but various mineral compositions have complicated effects on it. Taking saline lacustrine shale as an example, this study researched the effects of mineral composition on movable fluid porosity, based on nuclear magnetic resonance (NMR), focused ion beam (FIB), and x-ray diffraction (XRD) experiments. The results show that movable fluid porosity exhibits a stronger dependence on porosity than movable fluid saturation does. Micropores (<100 nm) and macropores (>1000 nm) are mostly developed in silicate and gypsum minerals, and have a highly heterogeneous distribution. In contrast, carbonate intercrystalline pores are dominated by mesopores (100−1000 nm), and behave strongly heterogeneously. Many mesopores play a positive role in generating highly movable fluid porosity, but the development of micropores and macropores is not conducive to an increase in movable fluid porosity. Overall, a significant negative effect is observed between silicate mineral content and movable fluid porosity, and carbonate mineral content has a strong positive effect on movable fluid porosity, whereas movable fluid porosity exhibits a relatively small reduction with an increase in the gypsum.https://www.mdpi.com/1996-1073/16/13/5166micro-nanoscale porous mediamovable fluid porositymineral compositionsaline lacustrineshale |
| spellingShingle | Quanqi Dai Yangwen Zhu Yingfu He Rui Wang Da Zheng Yinbang Zhou Yunfeng Liu Guiwen Wang Hao Wu Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous Media Energies micro-nanoscale porous media movable fluid porosity mineral composition saline lacustrine shale |
| title | Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous Media |
| title_full | Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous Media |
| title_fullStr | Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous Media |
| title_full_unstemmed | Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous Media |
| title_short | Effects of Mineral Composition on Movable Fluid Porosity in Micro-Nanoscale Porous Media |
| title_sort | effects of mineral composition on movable fluid porosity in micro nanoscale porous media |
| topic | micro-nanoscale porous media movable fluid porosity mineral composition saline lacustrine shale |
| url | https://www.mdpi.com/1996-1073/16/13/5166 |
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