2018_EJRNL_PP_JING_ZHANG_1.pdf
Terbatas  Suharsiyah
» Gedung UPT Perpustakaan
Terbatas  Suharsiyah
» Gedung UPT Perpustakaan
The transport properties of fluids in nanopores are a fundamental scientific issue in the
development of tight reservoirs such as shale gas. The flow of gas in nanosized pores is
affected by a size effect, therefore, the conventional fluid mechanics theory cannot be
applied. Based on the molecular dynamics theory, the transport process of methane in
carbon nanopores was studied, including simulation of the arrangement of the wall atoms,
slip and transitional flow of methane in the supercritical state and application of different
driving forces. The research of this paper revealed that the configuration of the wall
carbon atoms, at the microscale, has a greater influence on the density distribution and
velocity distribution of methane molecules in the pores, while the change in the driving
force has a greater impact on the slippage of methane at the boundary. Particularly, the
theoretical model we proposed can predict the transport properties in carbon nanopores, ,
demonstrating the sensitivity of driving force, pore configuration and the state of flow for
methane gas transport, which can provide the characteristic parameters for the
establishment of the seepage mathematical model.