Gas Transport in Shale Nanopores with Miscible Zone
| العنوان: | Gas Transport in Shale Nanopores with Miscible Zone |
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| المؤلفون: | Wen-Dong Wang, Detang Lu, Xiang Li, Daolun Li, Youzhi Hao, Sai Xu |
| المصدر: | Geofluids, Vol 2020 (2020) |
| بيانات النشر: | Hindawi Limited, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | QE1-996.5, Materials science, Article Subject, Gas velocity, Geology, 02 engineering and technology, Mechanics, 021001 nanoscience & nanotechnology, Physics::Fluid Dynamics, Nanopore, Permeability (earth sciences), Molecular dynamics, 020401 chemical engineering, Flow velocity, Physical phenomena, General Earth and Planetary Sciences, 0204 chemical engineering, 0210 nano-technology, Data flow model, Oil shale, Physics::Atmospheric and Oceanic Physics |
| الوصف: | Based on the results of molecular dynamics simulation, in a gas-water miscible zone, the velocity profiles of the flowing water film do not increase monotonously but increase first and then decrease, which is due to the interaction between water and gas molecules. This exhibits a new physical mechanism. In this paper, we firstly propose a gas-water flow model that takes into account the new physical phenomena and describes the distribution of gas-water velocity in the whole pore more accurately. In this model, a decreasing factor for water film in the gas-water miscible zone is used to describe the decrease of water velocity in the gas-water miscible zone, which leads to the gas velocity decrease correspondingly. The new flow model considers the interaction among gas and water molecules in the miscible zone and can provide more accurate velocity profiles compared with the flow models not considering the miscible region. Comparison calculation shows that the previous model overestimates the flow velocity, and the overestimation increases with the decrease of the pore radius. Based on the new gas-water flow model, a new permeability correction factor is deduced to consider the interaction among gas and water molecules. |
| وصف الملف: | text/xhtml |
| تدمد: | 1468-8123 1468-8115 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0acdc0fa9e73855600de001b1f15211 https://doi.org/10.1155/2020/6410614 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....d0acdc0fa9e73855600de001b1f15211 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14688123 14688115 |
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