NDLI: CO$_{2}$ Injection into Saline Carbonate Aquifer Formations II: Comparison of Numerical Simulations to Experiments

Content Provider	Springer Nature Link
Author	Izgec, Omer Demiral, Birol Bertin, Henri Akin, Serhat
Copyright Year	2007
Abstract	Sequestration of carbon dioxide in geological formations is an alternative way of managing extra carbon. Although there are a number of mathematical modeling studies related to this subject, experimental studies are limited and most studies focus on injection into sandstone reservoirs as opposed to carbonate ones. This study describes a fully coupled geochemical compositional equation-of-state compositional simulator (STARS) for the simulation of CO$_{2}$ storage in saline aquifers. STARS models physical phenomena including (1) thermodynamics of sub- and supercritical CO$_{2}$, and PVT properties of mixtures of CO$_{2}$ with other fluids, including (saline) water; (2) fluid mechanics of single and multiphase flow when CO$_{2}$ is injected into aquifers; (3) coupled hydrochemical effects due to interactions between CO$_{2}$, reservoir fluids, and primary mineral assemblages; and (4) coupled hydromechanical effects, such as porosity and permeability change due to the aforementioned blocking of pores by carbonate particles and increased fluid pressures from CO$_{2}$ injection. Matching computerized tomography monitored laboratory experiments showed the uses of the simulation model. In the simulations dissolution and deposition of calcite as well as adsorption of CO$_{2}$ that showed the migration of CO$_{2}$ and the dissociation of CO$_{2}$ into HCO$_{3}$ and its subsequent conversion into carbonate minerals were considered. It was observed that solubility and hydrodynamic storage of CO$_{2}$ is larger compared to mineral trapping.
Starting Page	57
Ending Page	74
Page Count	18
File Format	PDF
ISSN	01693913
Journal	Transport in Porous Media
Volume Number	73
Issue Number	1
e-ISSN	15731634
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-09-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	CO$_{2}$ injection Aquifer Calcite deposition Permeability and porosity alteration Numerical model Mechanics, Fluids, Thermodynamics Hydrogeology Civil Engineering Industrial Chemistry/Chemical Engineering Geotechnical Engineering
Content Type	Text
Resource Type	Article
Subject	Catalysis

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