Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
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
199
views
0
downloads
Cite This
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
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
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.