Xie, J-F, He, S, Zu, YQ et al. (2 more authors) (2017) Relative permeabilities of supercritical CO₂ and brine in carbon sequestration by a two-phase lattice Boltzmann method. Heat and Mass Transfer, 53 (8). pp. 2637-2649. ISSN 0947-7411
Abstract
In this paper, the migration of supercritical carbon dioxide (CO₂) in realistic sandstone rocks under conditions of saline aquifers, with applications to the carbon geological storage, has been investigated by a two-phase lattice Boltzmann method (LBM). Firstly the digital images of sandstone rocks were reproduced utilizing the X-ray computed microtomography (micro-CT), and high resolutions (up to 2.5 μm) were applied to the pore-scale LBM simulations. For the sake of numerical stability, the digital images were “cleaned” by closing the dead holes and removing the suspended particles in sandstone rocks. In addition, the effect of chemical reactions occurred in the carbonation process on the permeability was taken into account. For the wetting brine and non-wetting supercritical CO₂ flows, they were treated as the immiscible fluids and were driven by pressure gradients in sandstone rocks. Relative permeabilities of brine and supercritical CO₂ in sandstone rocks were estimated. Particularly the dynamic saturation was applied to improve the reliability of the calculations of the relative permeabilities. Moreover, the effects of the viscosity ratio of the two immiscible fluids and the resolution of digital images on the relative permeability were systematically investigated.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Relative Permeability; Lattice Boltzmann Method; Saline Aquifer; Immiscible Fluid; Relative Permeability Curve |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Funding Information: | Funder Grant number EPSRC R/130518 |
Depositing User: | Symplectic Publications |
Date Deposited: | 10 May 2019 12:16 |
Last Modified: | 10 May 2019 12:19 |
Status: | Published |
Publisher: | Springer Berlin Heidelberg |
Identification Number: | 10.1007/s00231-017-2007-6 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:145840 |