Effect of absorption boundary layer on nonlinear flow in low permeability porous media
| العنوان: | Effect of absorption boundary layer on nonlinear flow in low permeability porous media |
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| المؤلفون: | Yan-zhang Huang, Xue-wu Wang, Zheng-ming Yang, Ya-dong Qi |
| المصدر: | Journal of Central South University of Technology. 18:1299-1303 |
| بيانات النشر: | Springer Science and Business Media LLC, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Chromatography, Capillary action, Chemistry, Mechanical Engineering, Flow (psychology), Mechanics, Boundary layer thickness, Boundary layer, Mechanics of Materials, Percolation, General Materials Science, Absorption (electromagnetic radiation), Porous medium, Pressure gradient |
| الوصف: | Taking low permeability cores of Daqing oilfield for example, the flow characteristics at low velocity were studied with the self-designed micro-flux measuring instrument. Considering the throat distribution and capillary model, the thickness of fluid boundary layer under different pressure gradients was calculated, and the mechanism and influencing factors of nonlinear percolation were discussed. The results show that the percolation curve of ultra-low rocks is nonlinear, and apparent permeability is not a constant which increases with pressure gradient. The absorption boundary layer decreases with the increase of pressure gradient, and changes significantly especially in low pressure gradient, which is the essence of nonlinear percolation. The absorption boundary layer is also found to be impacted by the surface property of rocks. |
| تدمد: | 1993-0666 1005-9784 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::3a6205c086d3de2ec3f9f04ee6ffdfd1Test https://doi.org/10.1007/s11771-011-0836-xTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........3a6205c086d3de2ec3f9f04ee6ffdfd1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19930666 10059784 |
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