CO2 injection into saline carbonate aquifer formations II: Comparison of numerical simulations to experiments

Date

2008-05-01

Author

Izgec, Omer
Demiral, Birol
Bertin, Henri
Akın, Serhat

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

148
views

0
downloads

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 CO2 storage in saline aquifers. STARS models physical phenomena including (1) thermodynamics of sub- and supercritical CO2, and PVT properties of mixtures of CO2 with other fluids, including (saline) water; (2) fluid mechanics of single and multiphase flow when CO2 is injected into aquifers; (3) coupled hydrochemical effects due to interactions between CO2, 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 CO2 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 CO2 that showed the migration of CO2 and the dissociation of CO2 into HCO3 and its subsequent conversion into carbonate minerals were considered. It was observed that solubility and hydrodynamic storage of CO2 is larger compared to mineral trapping.

Subject Keywords

CO2 injection, Aquifer, Calcite deposition, Permeability and porosity alteration, Numerical mode

URI

https://hdl.handle.net/11511/44406

Journal

TRANSPORT IN POROUS MEDIA

DOI

https://doi.org/10.1007/s11242-007-9160-1

Collections

Department of Petroleum and Natural Gas Engineering, Article

Suggestions

OpenMETU
Core

Experimental and numerical modeling of direct injection of CO 2 into carbonate formations Izgec, O.; Demiral, B.; Bertin, H.; Akın, Serhat (Society of Petroleum Engineers (SPE); 2006-11-20) Sequestration of carbon dioxide in geological formations is an alternative way to manage the carbon emitted by combustion of fossil fuels. Results of an experimental and numerical modeling study aiming to investigate the important aspects of injection of CO2 in carbonate formations are presented. Different from sandstones, in carbonates surface reaction rates are very high, so mass transfer often limits the overall reaction rate, leading to highly non-uniform dissolution patterns. Often, large flow channels...
CO2 injection in carbonates Izgec, O.; Demiral, B.; Bertin, H.; Akın, Serhat (2005-07-28) Started as an EOR technique to produce oil, injection of carbon dioxide which is essentially a greenhouse gas is becoming more and more important. Although there are a number of mathematical modeling studies, experimental studies are limited and most studies focus on injection into sandstone reservoirs as opposed to carbonate ones. This study presents the results of computerized tomography (CT) monitored laboratory experiments to characterize relevant chemical reactions associated with injection and storage...
CO2 hydrogenation to methanol over supported copper and gallium based catalysts at the atmospheric pressure Osmanağa, Sezer; İpek Torun, Bahar; Önal, Işık; Department of Chemical Engineering (2022-8) The continuous increase of the CO2 concentration in the atmosphere has been negatively impacting the environment, due to its contribution in the global warming. Hence, it is necessary for the current CO2 valorization techniques to advance in order to make use of CO2. A possible technique is the CO2 hydrogenation to methanol and DME. The process of CO2 hydrogenation to methanol has been taking place in industry for about a century. However, due to the thermodynamic limitation imposed by the reaction stoichio...
CO2 injection into saline carbonate aquifer formations I: laboratory investigation Izgec, Omer; Demiral, Birol; Bertin, Henri; Akın, Serhat (Springer Science and Business Media LLC, 2008-03-01) Although there are a number of mathematical modeling studies for carbon dioxide (CO2) injection into aquifer formations, experimental studies are limited and most studies focus on injection into sandstone reservoirs as opposed to carbonate ones. This study presents the results of computerized tomography (CT) monitored laboratory experiments to analyze permeability and porosity changes as well as to characterize relevant chemical reactions associated with injection and storage of CO2 in carbonate formations....
CO2 hydrogenation to methanol and dimethyl ether at atmospheric pressure using Cu-Ho-Ga/gamma-Al2O3 and Cu-Ho-Ga/ZSM-5: Experimental study and thermodynamic analysis Tuygun, Cansu; İpek Torun, Bahar (2021-01-01) CO2 valorization through chemical reactions attracts significant attention due to the mitigation of greenhouse gas effects. This article covers the catalytic hydrogenation of CO2 to methanol and dimethyl ether using Cu-Ho-Ga containing ZSM-5 and gamma-Al2O3 at atmospheric pressure and at temperatures of 210 degrees C and 260 degrees C using a CO2:H-2 feed ratio of 1:3 and 1:9. In addition, the thermodynamic limitations of methanol and DME formation from CO2 was investigated at a temperature range of 100-400...

Citation Formats

O. Izgec, B. Demiral, H. Bertin, and S. Akın, “CO2 injection into saline carbonate aquifer formations II: Comparison of numerical simulations to experiments,” TRANSPORT IN POROUS MEDIA, pp. 57–74, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44406.