CO 2 Exsolution – challenges and Opportunities in Subsurface Flow Management
Energy Procedia, ISSN: 1876-6102, Vol: 63, Page: 5664-5670
2014
- 3Citations
- 27Captures
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Article Description
This paper summarizes the results of a 4-year study regarding the implications of CO 2 exsolution on geological carbon storage security and subsurface flow management, including core-flood experiments, micro-model studies, pore-scale modeling, and relative permeability calculations. When separate phase CO 2 exsolves from carbonated water in sandstones, water relative permeability drops significantly. The relative permeability of exsolved CO 2 is disproportionately reduced compared to drainage due to the dispersed morphology of exsolved CO 2 bubbles in the pore space. Our studies suggest that CO 2 exsolution provides an opportunity for mobility control in subsurface processes. The low mobility of exsolved CO 2 suggests that risks of groundwater contamination due to this phenomenon are small.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S187661021402414X; http://dx.doi.org/10.1016/j.egypro.2014.11.599; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84922933782&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S187661021402414X; https://dx.doi.org/10.1016/j.egypro.2014.11.599
Elsevier BV
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