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Gas Transport in Shale Nanopores with Miscible Zone
Joint Authors
Li, Xiang
Xu, Sai
Hao, Youzhi
Li, Daolun
Lu, Detang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-07
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Based on the results of molecular dynamics simulation, in a gas-water miscible zone, the velocity profiles of the flowing water film do not increase monotonously but increase first and then decrease, which is due to the interaction between water and gas molecules.
This exhibits a new physical mechanism.
In this paper, we firstly propose a gas-water flow model that takes into account the new physical phenomena and describes the distribution of gas-water velocity in the whole pore more accurately.
In this model, a decreasing factor for water film in the gas-water miscible zone is used to describe the decrease of water velocity in the gas-water miscible zone, which leads to the gas velocity decrease correspondingly.
The new flow model considers the interaction among gas and water molecules in the miscible zone and can provide more accurate velocity profiles compared with the flow models not considering the miscible region.
Comparison calculation shows that the previous model overestimates the flow velocity, and the overestimation increases with the decrease of the pore radius.
Based on the new gas-water flow model, a new permeability correction factor is deduced to consider the interaction among gas and water molecules.
American Psychological Association (APA)
Li, Xiang& Xu, Sai& Hao, Youzhi& Li, Daolun& Lu, Detang. 2020. Gas Transport in Shale Nanopores with Miscible Zone. Geofluids،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1159726
Modern Language Association (MLA)
Li, Xiang…[et al.]. Gas Transport in Shale Nanopores with Miscible Zone. Geofluids No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1159726
American Medical Association (AMA)
Li, Xiang& Xu, Sai& Hao, Youzhi& Li, Daolun& Lu, Detang. Gas Transport in Shale Nanopores with Miscible Zone. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1159726
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1159726