A coupled lattice Boltzmann model for simulating reactive transport in CO2 injection

Tian, Zhiwei, Xing, Huilin, Tan, Yunliang and Gao, Jinfang (2014) A coupled lattice Boltzmann model for simulating reactive transport in CO2 injection. Physica A: Statistical Mechanics and its Applications, 403 155-164. doi:10.1016/j.physa.2014.02.040


Author Tian, Zhiwei
Xing, Huilin
Tan, Yunliang
Gao, Jinfang
Title A coupled lattice Boltzmann model for simulating reactive transport in CO2 injection
Journal name Physica A: Statistical Mechanics and its Applications   Check publisher's open access policy
ISSN 0378-4371
1873-2119
Publication date 2014-06-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.physa.2014.02.040
Open Access Status Not Open Access
Volume 403
Start page 155
End page 164
Total pages 10
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Formatted abstract
A lattice Boltzmann method (LBM) based computational REV model of geochemical reaction is proposed to describe the geochemical reactions of both solute ions transport and solid phase CaCO3 dissolution in CO2-saturated water as well as their effects on the velocity fields of fluid flows during a CO2 injection process. This includes the porosity change with the calcium carbonate dissolution and its feedback impacts on fluid flows. The proposed model is implemented in our in-house LBM code and verified through a hypothetic numerical experiment. The interaction between chemical reactions and fluid advection-diffusion processes is investigated through comparing simulation results of different species distribution at different stages. It has been well known that even a small porosity change induced by the chemical reaction would cause an obvious permeability change. Our present results validate that rule, and furthermore yield a numerical relationship between porosity change and fluid velocity increase at different time steps. This demonstrates that the proposed LBM geochemical reaction model may serve as a reliable approach to investigate the reactive transport in reservoirs of CO2 injection.
Keyword Lattice Boltzmann method (LBM)
CO2 injection
Reactive transport
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Papers
Official 2015 Collection
 
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