The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 Adsorption
Gas adsorption experiments are becoming one of the most common methods to quantify and analyze the pore structures of shale samples in the petroleum industry. In this regard, particle size of the specimen plays an important role in the results that could ultimately affect the pore structure interpre...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/8898142 |
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| author | Chengfu Lyu Xinmao Zhou Xuesong Lu Ying Zhang Chao Li Qianshan Zhou Zhaotong Sun Guojun Chen |
| author_facet | Chengfu Lyu Xinmao Zhou Xuesong Lu Ying Zhang Chao Li Qianshan Zhou Zhaotong Sun Guojun Chen |
| author_sort | Chengfu Lyu |
| collection | DOAJ |
| description | Gas adsorption experiments are becoming one of the most common methods to quantify and analyze the pore structures of shale samples in the petroleum industry. In this regard, particle size of the specimen plays an important role in the results that could ultimately affect the pore structure interpretation. Hence, in this study, five shale samples at different thermal maturity levels are picked, and all are crushed into different groups of particle sizes: less than 40 mesh (<375 μm), less than 60 mesh (<250 μm), less than 80 mesh (<187.5 μm), and less than 100 mesh (<150 μm). Next, N2 adsorption is used to characterize the pore structures of the samples within different particle sizes. Furthermore, to interpret the data, several attributes such as the pore volume, surface area, fractal dimension (from the fractal analysis), and heterogeneity index (from the multifractal analysis), are studied and compared between the samples and particle size intervals to provide us with the effect that particle size could have on the pore structure analysis. The results showed that as the particle size varies, the pore structures of the shale samples could get affected. Based on the comparison of the results, it is recommended that a suitable particle size for the shale pore structure characterization in N2 adsorption experiments should be less than 60 mesh (<250 μm). |
| format | Article |
| id | doaj-art-d18ee42dda6d4347ae249288d41cace2 |
| institution | DOAJ |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-d18ee42dda6d4347ae249288d41cace22025-08-20T03:23:59ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/88981428898142The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 AdsorptionChengfu Lyu0Xinmao Zhou1Xuesong Lu2Ying Zhang3Chao Li4Qianshan Zhou5Zhaotong Sun6Guojun Chen7Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaResearch Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, ChinaResearch Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaGas adsorption experiments are becoming one of the most common methods to quantify and analyze the pore structures of shale samples in the petroleum industry. In this regard, particle size of the specimen plays an important role in the results that could ultimately affect the pore structure interpretation. Hence, in this study, five shale samples at different thermal maturity levels are picked, and all are crushed into different groups of particle sizes: less than 40 mesh (<375 μm), less than 60 mesh (<250 μm), less than 80 mesh (<187.5 μm), and less than 100 mesh (<150 μm). Next, N2 adsorption is used to characterize the pore structures of the samples within different particle sizes. Furthermore, to interpret the data, several attributes such as the pore volume, surface area, fractal dimension (from the fractal analysis), and heterogeneity index (from the multifractal analysis), are studied and compared between the samples and particle size intervals to provide us with the effect that particle size could have on the pore structure analysis. The results showed that as the particle size varies, the pore structures of the shale samples could get affected. Based on the comparison of the results, it is recommended that a suitable particle size for the shale pore structure characterization in N2 adsorption experiments should be less than 60 mesh (<250 μm).http://dx.doi.org/10.1155/2021/8898142 |
| spellingShingle | Chengfu Lyu Xinmao Zhou Xuesong Lu Ying Zhang Chao Li Qianshan Zhou Zhaotong Sun Guojun Chen The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 Adsorption Geofluids |
| title | The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 Adsorption |
| title_full | The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 Adsorption |
| title_fullStr | The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 Adsorption |
| title_full_unstemmed | The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 Adsorption |
| title_short | The Effect of Particle Size on the Interpretation of Pore Structure of Shale by N2 Adsorption |
| title_sort | effect of particle size on the interpretation of pore structure of shale by n2 adsorption |
| url | http://dx.doi.org/10.1155/2021/8898142 |
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