Journal ArticleDOI
Screening and ranking of sedimentary basins for sequestration of CO2 in geological media in response to climate change
TLDR
A set of 15 criteria, with several classes each, has been developed for the assessment and ranking of sedimentary basins in terms of their suitability for CO2 sequestration as mentioned in this paper.Abstract:
Sedimentary basins are suitable to different degrees for CO2 geological sequestration as a result of various intrinsic and extrinsic characteristics, of which the geothermal regime is one of the most important. Warm basins are less favorable for CO2 sequestration than cold basins because of reduced capacity in terms of CO2 mass, and because of higher CO2 buoyancy, which drives the upward CO2 migration. A set of 15 criteria, with several classes each, has been developed for the assessment and ranking of sedimentary basins in terms of their suitability for CO2 sequestration. Using a parametric normalization procedure, a basin's individual scores are summed to a total score using weights that express the relative importance of different criteria. The total score is ranked to determine the most suitable basin or region thereof for the geological sequestration of CO2. The method is extremely flexible in that it allows changes in the functions that express the importance of various classes for any given criterion, and in the weights that express the relative importance of various criteria. Examples of application are given for Canada's case and for the Alberta basin in Canada.read more
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Journal ArticleDOI
CO2 storage capacity estimation: Methodology and gaps
Stefan Bachu,Didier Bonijoly,John L. Bradshaw,Robert C. Burruss,Sam Holloway,Niels Peter Christensen,Odd Magne Mathiassen +6 more
TL;DR: In this paper, a set of definitions and methodologies for the assessment of CO2 storage capacity in geological media is presented, including coal beds and deep saline aquifers, and the level of detail and resolution required in the data make reliable and accurate estimation of the storage capacity of these media practical only at the local and site-specific scales.
Journal ArticleDOI
CO2 storage in geological media: Role, means, status and barriers to deployment
TL;DR: In this article, the authors discuss the risks associated with CO2 capture and geological storage, and the potential for acute or chronic CO2 leakage from a CO2 storage site is discussed.
Journal ArticleDOI
CO2 Sequestration in Deep Sedimentary Formations
Sally M. Benson,David R. Cole +1 more
TL;DR: Carbon dioxide capture and sequestration (CCS) in deep geological formations has recently emerged as an important option for reducing greenhouse emissions as discussed by the authors, and if CCS is implemented on the scale needed to make noticeable reductions in atmospheric CO2, a billion metric tons or more must be sequestered annually, a 250 fold increase over the amount sequestered today.
Journal ArticleDOI
Sequestration of CO2 in geological media in response to climate change: capacity of deep saline aquifers to sequester CO2 in solution
Stefan Bachu,J.J. Adams +1 more
TL;DR: In this article, the authors developed a methodology for estimating the ultimate CO2 sequestration capacity in solution in aquifers and applied it to the Viking aquifer in the Alberta basin in western Canada.
Journal ArticleDOI
Injection and Storage of CO2 in Deep Saline Aquifers: Analytical Solution for CO2 Plume Evolution During Injection
TL;DR: In this paper, an analytical solution is derived to describe the space-time evolution of the CO2 plume, using arguments of energy minimization, and reduces to a simple radial form of the Buckley-Leverett solution for conditions of viscous domination.
References
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Journal ArticleDOI
Sequestration of CO2 in geological media: criteria and approach for site selection in response to climate change
TL;DR: In this article, a systematic approach is proposed for the assessment and selection of method and sites for CO2 sequestration in geological media, and the range of sedimentary basins suitable for CO 2 sequestration is significantly reduced if these criteria and climatic conditions, accessibility, infrastructure and cost of CO2 capture and injection are taken into account.
Journal ArticleDOI
Aquifer disposal of CO2: Hydrodynamic and mineral trapping
TL;DR: A general approach to evaluating sedimentary basins for CO2 disposal is presented in this paper, exemplified for the case of the Alberta Basin in western Canada where a wealth of geological and hydrogeological data from more than 150,000 wells drilled by the oil industry allows for a proper estimate of the basin potential for long-term storage of CO2 captured from fossil-fuelled power plants.
Journal ArticleDOI
Mechanisms for Generating Overpressure in Sedimentary Basins: A Reevaluation
TL;DR: Osborne et al. as discussed by the authors investigated the potential for generating overpressure by hydrocarbon generation and cracking and concluded that these processes may be self-limiting in a sealed system because buildup of pressure could inhibit further organic metamorphism.
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