skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Element mobilization and immobilization from carbonate rocks between CO 2 storage reservoirs and the overlying aquifers during a potential CO 2 leakage

Journal Article · · Chemosphere

In spite of the numerous studies on changes within the reservoir following CO2 injection and the effects of CO2 release into overlying aquifers, little or no literature is available on the effect of CO2 release on rock between the storage reservoirs and subsurface. This is important, because the interactions that occur in this zone between the CO2 storage reservoir and the subsurface may have a significant impact on risk analysis for CO2 storage projects. To address this knowledge gap, relevant rock materials, temperatures and pressures were used to study mineralogical and elemental changes in this intermediate zone. Furthermore, after rocks reacted with CO2-acidified 0.01 M NaCl, liquid analysis showed an increase of major elements (e.g., Ca and Mg) and variable concentrations of potential contaminants (e.g., Sr and Ba); lower aqueous concentrations of these elements were observed in N2 control experiments, likely due to differences in pH between the CO2 and N2 experiments. In experiments with As/Cd and/or organic spikes, representing potential contaminants in the CO2 plume originating in the storage reservoir, most or all of these contaminants were removed from the aqueous phase. SEM and Mössbauer spectroscopy results showed the formation of new minerals and Fe oxides in some CO2-reacted samples, indicating potential for contaminant removal through mineral incorporation or adsorption onto Fe oxides. These experiments show the interactions between the CO2-laden plume and the rock between storage reservoirs and overlying aquifers have the potential to affect the level of risk to overlying groundwater, and should be considered during site selection and risk evaluation.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
AC05-76RL01830; AC06-76RL01830
OSTI ID:
1416958
Report Number(s):
PNNL-SA-125304; PII: S004565351732177X
Journal Information:
Chemosphere, Vol. 197; ISSN 0045-6535
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (46)

Modeling the impact of carbon dioxide leakage into an unconfined, oxidizing carbonate aquifer journal January 2016
Mobilization of arsenic by dissolved organic matter from iron oxides, soils and sediments journal February 2006
Source term modeling for evaluating the potential impacts to groundwater of fluids escaping from a depleted oil reservoir used for carbon sequestration journal August 2014
Key factors for determining groundwater impacts due to leakage from geologic carbon sequestration reservoirs journal October 2014
57Fe Mössbauer effect in ankerite: Study of the electronic relaxation journal November 1986
Carbon Dioxide Solubility in Water journal January 1956
Calcite solubility in supercritical CO2H2O fluids journal June 1987
Interaction between CO2-rich sulfate solutions and carbonate reservoir rocks from atmospheric to supercritical CO2 conditions: Experiments and modeling journal September 2014
Molybdenum Adsorption on Oxides, Clay Minerals, and Soils journal January 1996
Geochemical Implications of Gas Leakage associated with Geologic CO 2 Storage—A Qualitative Review journal August 2012
Characterizing long-term CO 2 –water–rock reaction pathways to identify tracers of CO 2 migration during geological storage in a low-salinity, siliciclastic reservoir system journal April 2015
Assessing the potential consequences of CO2 leakage to freshwater resources: A batch-reaction experiment towards an isotopic tracing tool journal March 2013
Experimental determination of the reactivity of the Frio Sandstone, Texas, and the fate of heavy metals resulting from carbon dioxide sequestration journal May 2015
Extraction of Hydrocarbons from High-Maturity Marcellus Shale Using Supercritical Carbon Dioxide journal November 2015
Effect of oxygen co-injected with carbon dioxide on Gothic shale caprock–CO2–brine interaction during geologic carbon sequestration journal September 2013
Trace Metal Source Terms in Carbon Sequestration Environments journal August 2012
The impact of CO2 on shallow groundwater chemistry: observations at a natural analog site and implications for carbon sequestration journal June 2009
Geochemical Investigation of the Potential for Mobilizing Non-Methane Hydrocarbons during Carbon Dioxide Storage in Deep Coal Beds journal January 2006
The use of solvent extractions and solubility theory to discern hydrocarbon associations in coal, with application to the coal–supercritical CO2 system journal August 2014
Using Ground and Intact Coal Samples To Evaluate Hydrocarbon Fate during Supercritical CO 2 Injection into Coal Beds: Effects of Particle Size and Coal Moisture journal July 2015
Application of Electron Paramagnetic Resonance and Mössbauer Spectroscopy in the Investigation of Kaolinite-Group Minerals journal January 1981
Thermodynamical Calculations of Solubilities of Nitrogen and Hydrogen in Water at High Pressures journal November 1935
Evaluating impacts of CO2 and CH4 gas intrusion into an unconsolidated aquifer: fate of As and Cd journal July 2015
Evaluating impacts of CO2 intrusion into an unconsolidated aquifer: I. Experimental data journal January 2016
Potential Impacts of Leakage from Deep CO 2 Geosequestration on Overlying Freshwater Aquifers journal December 2010
Geochemical impact of O 2 impurity in CO 2 stream on carbonate carbon-storage reservoirs journal April 2016
Potential risks to freshwater resources as a result of leakage from CO2 geological storage: a batch-reaction experiment journal December 2009
Mösbauer spectroscopic study of the decomposition mechanism of ankerite in CO 2 atmosphere journal September 1989
Pertechnetate (TcO4−) reduction by reactive ferrous iron forms in naturally anoxic, redox transition zone sediments from the Hanford Site, USA journal September 2012
Review of the impacts of leaking CO2 gas and brine on groundwater quality journal June 2017
Fayalite dissolution and siderite formation in water-saturated supercritical CO2 journal November 2012
Voigt-based methods for arbitrary-shape static hyperfine parameter distributions in Mössbauer spectroscopy journal May 1991
Natural Organic Matter Affects Arsenic Speciation and Sorption onto Hematite journal July 2002
Mobilisation of organic compounds from reservoir rocks through the injection of CO2 —Comparison of baseline characterization and laboratory experiments journal January 2011
Mobilization of metals from Eau Claire siltstone and the impact of oxygen under geological carbon dioxide sequestration conditions journal September 2014
Effects of Salinity and the Extent of Water on Supercritical CO 2 -Induced Phlogopite Dissolution and Secondary Mineral Formation journal February 2011
Coupled Geochemical Impacts of Leaking CO 2 and Contaminants from Subsurface Storage Reservoirs on Groundwater Quality journal June 2015
Occurrence of molybdenum in British surface water and groundwater: Distributions, controls and implications for water supply journal January 2014
Reactive transport modeling for impact assessment of a CO2 intrusion on trace elements mobility within fresh groundwater and its natural attenuation for potential remediation journal January 2011
Geochemical impacts of leaking CO2 from subsurface storage reservoirs to an unconfined oxidizing carbonate aquifer journal January 2016
Metal release from limestones at high partial-pressures of CO2 journal January 2014
Metal release from dolomites at high partial-pressures of CO2 journal November 2013
Potential chemical impacts of CO2 leakage on underground source of drinking water assessed by quantitative risk analysis journal July 2016
Inverse Modeling of Water-Rock-CO 2 Batch Experiments: Potential Impacts on Groundwater Resources at Carbon Sequestration Sites journal February 2014
Transport of organic contaminants mobilized from coal through sandstone overlying a geological carbon sequestration reservoir journal February 2014
Mobilization and transport of organic compounds from reservoir rock and caprock in geological carbon sequestration sites journal October 2013

Cited By (2)

Numerical analysis of CO 2 hydrate growth in a depleted natural gas hydrate formation with free water journal September 2019
Natural, incidental, and engineered nanomaterials and their impacts on the Earth system journal March 2019