Relative permeabilities of supercritical CO2 and brine in carbon sequestration by a two-phase lattice Boltzmann method
Relative permeabilities of supercritical CO2 and brine in carbon sequestration by a two-phase lattice Boltzmann method
复制标题
两相晶格玻尔兹曼法固碳中超临界CO2和盐水的相对渗透率
DOI：
10.1007/s00231-017-2007-6
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发表时间：
2017-03
影响因子：
2.2
通讯作者：
Yardley B. W. D.
中科院分区：
文献类型：
--
作者：
Xie Jian. -Fei.;He S.;Zu Y. Q.;Lamy-Chappuis B.;Yardley B. W. D.
本文采用两相格子Boltzmann方法（LBM）研究了含盐含水层条件下，超临界CO2（$$\hbox {CO}_{2}$$CO2）在实际砂岩中的迁移规律，并将其应用于碳的地质封存。首先利用X射线计算机微层析成像（micro-CT）再现砂岩岩石的数字图像，并将高分辨率（高达2.5 μm）应用于孔隙尺度LBM模拟。为了数值稳定性，通过关闭死孔和去除砂岩岩石中的悬浮颗粒来“清洁”数字图像。此外，还考虑了碳酸化过程中发生的化学反应对渗透率的影响。对于润湿的盐水和非润湿的超临界CO2流，它们被视为不混溶流体，并在砂岩岩石中由压力梯度驱动。估算了盐水和超临界CO2在砂岩中的相对渗透率。特别是动态饱和度的应用提高了相对渗透率计算的可靠性。系统地研究了两种不混溶流体粘度比和图像分辨率对相对渗透率的影响。
In this paper, the migration of supercritical carbon dioxide ($$\hbox {CO}_{2}$$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 $$\hbox {CO}_{2}$$CO2 flows, they were treated as the immiscible fluids and were driven by pressure gradients in sandstone rocks. Relative permeabilities of brine and supercritical $$\hbox {CO}_{2}$$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.
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影响因子：
4.1
作者：
S. O. Unverdi;G. Tryggvason
通讯作者：
S. O. Unverdi;G. Tryggvason
影响因子：
2.7
作者：
T. Ramstad;N. Idowu;C. Nardi;P. Øren
通讯作者：
T. Ramstad;N. Idowu;C. Nardi;P. Øren
影响因子：
2.9
作者：
GUNSTENSEN, AK;ROTHMAN, DH;ZANETTI, G
通讯作者：
ZANETTI, G
影响因子：
4.7
作者：
Gray, William G.;Miller, Cass T.
通讯作者：
Miller, Cass T.
影响因子：
3.4
作者：
S. Emberley;I. Hutcheon;M. Shevalier;K. Durocher;B. Mayer;W. Gunter;E. Perkins
通讯作者：
S. Emberley;I. Hutcheon;M. Shevalier;K. Durocher;B. Mayer;W. Gunter;E. Perkins