Accessing effects and signals of leakage from a CO2 reservoir to a shallow freshwater aquifer by reactive transport modelling.

Szabó, Zs [Szabó-Krausz, Zsuzsanna (Környezettudomány...), szerző]; Gál, N E [Gál, Nóra Edit (geológia, hidroge...), szerző]; Kun, É [Kun, Éva (földtudomány), szerző]; Szőcs, T [Szőcs, Teodóra (Hidrogeológia), szerző]; Falus, Gy [Falus, György (Kőzettan, geokémi...), szerző] Magyar Bányászati és Földtani Szolgálat

Angol nyelvű Tudományos Szakcikk (Folyóiratcikk)
Megjelent: ENVIRONMENTAL EARTH SCIENCES 1866-6280 1866-6299 77 (12) Paper: 460 2018
  • SJR Scopus - Earth-Surface Processes: Q2
Azonosítók
Szakterületek:
    CO2 geological storage is a transitional technology for the mitigation of climate change. In the vicinity of potential CO2 reservoirs in Hungary, protected freshwater aquifers used for drinking water supplies exist. Effects of disaster events of CO2 escape and brine displacement to one of these aquifers have been studied by kinetic 1D reactive transport modelling in PHREEQC. Besides verifying that ion concentrations in the freshwater may increase up to drinking water limit values in both scenarios (CO2 or brine leakage), total porosity of the rock is estimated. Pore volume is expected to increase at the entry point of CO2 and to decrease at further distances, whereas it shows minor increase along the flow path for the effect of brine inflow. Additionally, electrical conductivity of water is estimated and suggested to be the best parameter to measure for cost-effective monitoring of both worst-case leakage scenarios. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of the reference case, i.e. freshwater flow through freshwater aquifer. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of the reference case, i.e. freshwater flow through freshwater aquifer. … and follows Equation 2. and follows Equation 2. … Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of CO 2 leakage scenario, i.e. CO 2 saturated freshwater flow through freshwater aquifer. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of CO 2 leakage scenario, i.e. CO 2 saturated freshwater flow through freshwater aquifer. … Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of brine leakage scenario, i.e. 10% saline+90% freshwater mix flow through freshwater aquifer. Solution composition (left) and mineral reactions (right) on days 110 (top) and 330 (bottom) in kinetic 1D reactive transport model of brine leakage scenario, i.e. 10% saline+90% freshwater mix flow through freshwater aquifer. … Estimated total porosity change in the aquifer on days 110 (top) and 330 (bottom) based on a difference between kinetic 1D reactive transport model of the reference and that of CO 2 (left) and brine (right) leakage scenarios i.e. CO 2 saturated freshwater and 10% saline+90% freshwater mix flows through freshwater aquifer, respectively.+3 Estimated total porosity change in the aquifer on days 110 (top) and 330 (bottom) based on a difference between kinetic 1D reactive transport model of the reference and that of CO 2 (left) and brine (right) leakage scenarios i.e. CO 2 saturated freshwater and 10% saline+90% freshwater mix flows through freshwater aquifer, respectively. … Figures - uploaded by Zsuzsanna Szabó-Krausz
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2021-11-29 15:20