Journal article

Reservoir scale reactive-transport modeling of a buoyancy-controlled CO2 plume with impurities (SO2, NO2, O-2)

Nicolas F Spycher, Ella Maria Llanos, Hong P Vu, Ralf R Haese

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL | ELSEVIER SCI LTD | Published : 2019

Abstract

A demonstration project for the geological storage of CO2 is currently being considered in the deep Precipice Sandstone formation of the Surat Basin, Queensland, Australia. Because of the presence of potential fresh water resources in this formation, a reservoir-scale two-dimensional reactive-transport model was developed to assess temporal and spatial changes in water quality imposed by co-injecting CO2 with SO2, NO2, and O2 at this location. The model shows that because the injection rate is relatively low (60,000 tons/year), flow is buoyancy-dominated and under these conditions the predicted CO2 flow pattern is quite sensitive to fine-scale heterogeneities and the resolution of the numeri..

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Grants

Awarded by University of Melbourne, through Lawrence Berkeley National Laboratory under the U.S. Department of Energy


Funding Acknowledgements

The authors wish to acknowledge financial assistance provided through Australian National Low Emissions Coal Research and Development (ANLEC R&D). ANLEC R&D is supported by COAL21 Ltd. and the Australian Government through the Clean Energy Initiative. We also thank the Carbon Transport and Storage Company (CTSCo) for providing data and engaging in discussions for this project. The first author acknowledges funding by the University of Melbourne, through Work for Others funding from Lawrence Berkeley National Laboratory under the U.S. Department of Energy Contract No. DE-AC02-05CH11231. We are also grateful to two anonymous reviewers for their constructive comments.