Physical and Numerical Simulation of Tight Gas Flow at the Microscale
نویسندگان
چکیده
The porous media in tight reservoirs are mainly composed of micro- and nanopores, gas seepage through which is complex, making it difficult to study. Physical simulation using micron tubes an intuitive effective method study the mechanism gas. lattice Boltzmann (LBM) most for simulation, has been widely used. Microscale experiments LBM simulations with different inner diameters were performed. results showed that tubes, flow increases nonlinearly increasing pressure gradient. Influenced by compression rarefaction effects, degree nonlinearity distribution series inlet pressure. existence a connecting channel between parallel breaks linear original forms raised relative high-pressure area at connection two tubes; wider channel, greater bulge. average rate whole tube width, capacity instead decreases. diameter change one no effect on other tube. Although connected, they still relatively independent individuals. These research lay foundation correct understanding characteristics laws pores nanoscales, have important theoretical significance mechanisms reservoirs.
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ژورنال
عنوان ژورنال: Energies
سال: 2023
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en16165937