Galeczka et al. (2022): A pre-injection assessment of CO2 and H2S mineralization reactions at the Nesjavellir (Iceland) geothermal storage site

Iwona Monika Galeczka, Andri Stefánsson, Barbara I. Kleine, Jóhann Gunnarsson-Robin, Sandra Ósk Snæbjörnsdóttir, Bergur Sigfússon, Sveinborg Hlíf Gunnarsdóttir, Tobias B. Weisenberger, Eric H. Oelkersa IN: International Journal of Greenhouse Gas Control, Volume 115, 2022, 103610,

The injection of water dissolved CO2 and H2S into basalts into the Nesjavellir geothermal system (Iceland) is to begin in 2022. This study is a pre-injection investigation assessing the likely response of the fluid-rock system to the gas charged water injection. Mass balance considerations suggest that the currently planned dissolved gas injection into the Nesjavellir system will negligibly affect the CO2 and H2S budget of the aquifer.