Gas filtration from an underground reservoir at a large initial pressure gradient
| Autor: | V. A. Levin, N. A. Lutsenko, T. P. Miroshnichenko |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
geography
Materials science geography.geographical_feature_category Specific heat Mechanical Engineering technology industry and agriculture Separator (oil production) 02 engineering and technology Mechanics Condensed Matter Physics Inlet 01 natural sciences Physics::Geophysics 010305 fluids & plasmas Permeability (earth sciences) 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials 0103 physical sciences Wet gas Porous layer Porous medium Pressure gradient |
| Zdroj: | Journal of Applied Mechanics and Technical Physics. 56:864-869 |
| ISSN: | 1573-8620 0021-8944 |
| Popis: | Gas filtration from an underground reservoir through a layer of a porous medium due to an instantaneous increase in the gas pressure in the reservoir is studied. The problem is considered in a one-dimensional formulation in the general case where the temperatures of the gas and the porous medium are different and unstable, and in the case of a high specific heat of the solid phase and a high interfacial heat-transfer rate. The dynamics of the gas flow at the inlet and outlet of the underground reservoir is analyzed, the time of unloading of the system is estimated as a function of the permeability of the porous medium. It is shown that, depending on the properties of the porous layer, two characteristic gas flow regimes are possible: a fast discharge regime and a slow regime which is determined mainly by barodiffusion. |
| Databáze: | OpenAIRE |
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