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02/01/2013

On modeling the potential impacts of CO2 sequestration on shallow groundwater: Transport of organics and co-injected H2S by supercritical CO2 to shallow aquifers

Source: Dan Hawkes

Proper site selection for CO2 geologic storage requires assessing the impact of potential leakage of CO2 from deep subsurface reservoirs to overlying drinking water aquifers. ESD’s Liange Zheng recently headed a team of scientists (including ESD’s Nic Spycher, Jens Birkholzer, Tianfu Xu, and John Apps) that investigated two leakage issues and their potential effects on groundwater quality: the transport of organic compounds by supercritical CO2 from deep storage reservoirs and the upward migration of CO2 with co-injected H2S.

Shallow_aquifers
Schematic representation of hypothetical 2-D simulation scenario

For more information, go to:

http://www.sciencedirect.com/science/article/pii/S1750583613000303

Citation: Zheng, L., N. Spycher, J. Birkholzer, T. Xu, J. Apps, and Y. Kharaka (2013), On modeling the potential impacts of CO2 sequestration on shallow groundwater: Transport of organics and co-injected H2S by supercritical CO2 to shallow aquifers. International Journal of Greenhouse Gas Control, 14(0), 113–127.

Funding Source: FE, ZERT