Document Detail


Reservoir engineering to accelerate the dissolution of CO2 stored in aquifers.
MedLine Citation:
PMID:  18497117     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It is possible to accelerate the dissolution of CO2 injected into deep aquifers by pumping brine from regions where it is undersaturated into regions occupied by CO2. For a horizontally confined reservoir geometry, we find that it is possible to dissolve most of the injected CO2 within a few hundred years at an energy cost that is less than 20% of the cost of compressing the CO2 to reservoir conditions. We anticipate that use of reservoir engineering to accelerate dissolution can reduce the risks of CO2 storage by reducing the duration over which buoyant free-phase CO2 is present underground. Such techniques could simplify risk assessment by reducing uncertainty about the long-term fate of injected CO2, and could expand the range of reservoirs which are acceptable for storage.
Authors:
Yuri Leonenko; David W Keith
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  42     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-05-23     Completed Date:  2008-07-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2742-7     Citation Subset:  IM    
Affiliation:
Energy and Environmental Systems Group, Institute for Sustainable Energy, Environment and Economy, University of Calgary, 2500 University Drive, Calgary, AB, Canada T2N 1N4.
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MeSH Terms
Descriptor/Qualifier:
Carbon Dioxide / chemistry*
Computer Simulation
Engineering
Salts*
Solubility
Water Supply*
Chemical
Reg. No./Substance:
0/Salts; 0/brine; 124-38-9/Carbon Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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