Multiscale transport mechanism of shale gas in micro/nano-pores

[Display omitted] •A multiscale lattice Boltzmann model considering the adsorption effect was proposed.•Multiscale transport mechanism of shale gas in micro/nano slit pores ranging from nanometer to millimeter was revealed.•Surface diffusion can increase the mass flux by as much as one magnitude in...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2017-08, Vol.111, p.1172-1180
Main Authors: Yu, Hao, Chen, Jie, Zhu, YinBo, Wang, FengChao, Wu, HengAn
Format: Article
Language:English
Subjects:
Adsorption
Adsorption effect
Apparent permeability
Computational fluid dynamics
Computer simulation
Correlation factor
Diffusion
Flow characteristics
Gas transport
Lattice Boltzmann method
Molecular dynamics
Multiscale transport mechanism
Permeability
Porosity
Shale gas
Slip
Slip velocity
Slippage
Surface chemistry
Surface diffusion
Viscous flow
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Summary:[Display omitted] •A multiscale lattice Boltzmann model considering the adsorption effect was proposed.•Multiscale transport mechanism of shale gas in micro/nano slit pores ranging from nanometer to millimeter was revealed.•Surface diffusion can increase the mass flux by as much as one magnitude in nanometer-scale pores (H1μm), viscous flow is the dominated transport mechanism, where the velocity profile displays a typical parabolic shape without slip velocity. In larger nanoscale pores (10nm
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2017.04.050