A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability
Apparent permeability is an important input parameter in the simulation of shale gas production. Most apparent permeability models assume a single pore size. In this study, we develop a theoretical model for quantifying the effect of pore size distribution on shale apparent permeability. The model a...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2017/7492328 |
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| _version_ | 1832565722301071360 |
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| author | Shouceng Tian Wenxi Ren Gensheng Li Ruiyue Yang Tianyu Wang |
| author_facet | Shouceng Tian Wenxi Ren Gensheng Li Ruiyue Yang Tianyu Wang |
| author_sort | Shouceng Tian |
| collection | DOAJ |
| description | Apparent permeability is an important input parameter in the simulation of shale gas production. Most apparent permeability models assume a single pore size. In this study, we develop a theoretical model for quantifying the effect of pore size distribution on shale apparent permeability. The model accounts for the nonuniform distribution of pore sizes, the rarefaction effect, and gas characteristics. The model is validated against available experimental data. Theoretical calculations show that the larger the pore radius, the larger the apparent permeability. Moreover, the apparent permeability increases with an increase in the width of pore size distribution, with this effect being much more pronounced at low pressure than at high pressure. |
| format | Article |
| id | doaj-art-7bc717c88b1b4942976c7b4784d47a20 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-7bc717c88b1b4942976c7b4784d47a202025-02-03T01:06:49ZengWileyGeofluids1468-81151468-81232017-01-01201710.1155/2017/74923287492328A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent PermeabilityShouceng Tian0Wenxi Ren1Gensheng Li2Ruiyue Yang3Tianyu Wang4State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, ChinaApparent permeability is an important input parameter in the simulation of shale gas production. Most apparent permeability models assume a single pore size. In this study, we develop a theoretical model for quantifying the effect of pore size distribution on shale apparent permeability. The model accounts for the nonuniform distribution of pore sizes, the rarefaction effect, and gas characteristics. The model is validated against available experimental data. Theoretical calculations show that the larger the pore radius, the larger the apparent permeability. Moreover, the apparent permeability increases with an increase in the width of pore size distribution, with this effect being much more pronounced at low pressure than at high pressure.http://dx.doi.org/10.1155/2017/7492328 |
| spellingShingle | Shouceng Tian Wenxi Ren Gensheng Li Ruiyue Yang Tianyu Wang A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability Geofluids |
| title | A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability |
| title_full | A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability |
| title_fullStr | A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability |
| title_full_unstemmed | A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability |
| title_short | A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability |
| title_sort | theoretical analysis of pore size distribution effects on shale apparent permeability |
| url | http://dx.doi.org/10.1155/2017/7492328 |
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