作者
Hao Yu, HengYu Xu, Jun Xia, JingCun Fan, FengChao Wang, HengAn Wu
发表日期
2020/6/25
期刊
Energy & Fuels
卷号
34
期号
8
页码范围
9552-9562
出版商
American Chemical Society
简介
In recent years, since the fast mass transport emerges from some low-dimensional nanostructures (e.g., graphene and CNTs), the applicability of the continuous model (e.g., hydrodynamics) for describing the nanoscale flow has been intensely challenged, even for shale gas. As the typical tight rock with numerous nanopores, most scholars considered that gas transport capacity (permeability) within a shale organic matrix (i.e., kerogen) would be significantly enhanced as well, due to the nanoscale slip effect. Herein, we perform comprehensive molecular dynamics (MD) simulations to reveal the realistic gas transport behavior through shale kerogen nanopores. The results show that, interestingly, all the velocity profiles for different kerogen (type I, II, and III) nanopores display no-slip parabolic shape, which are quantitatively satisfied with the continuous model under various conditions, including pressure drop (0.25–1 …
引用总数
202020212022202320242102194