Global sampling for integrating physics-specific subsystems and quantifying uncertainties of CO2 geological sequestration

Sun, Yunwei; Tong, Charles; Trainor‐Guitton, Whitney; Lu, Chuanhe; Mansoor, Kayyum; Carroll, Susan A.

doi:10.1016/j.ijggc.2012.10.004

Cited by 31 publications

(19 citation statements)

References 35 publications

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“…The NUFT code is a highly flexible computer software package capable of running on PCs, workstations, and major parallel processing platforms. Some of its previous applications include: geothermal exploitation, nuclear waste disposal, CO 2 sequestration, groundwater remediation, and subsurface hydrocarbon production (e.g., [47][48][49][50][51][52][53][54]). …”

Section: Numerical Simulation Toolmentioning

confidence: 99%

CO2-induced dissolution of low permeability carbonates. Part II: Numerical modeling of experiments

Smith

Sholokhova

et al. 2013

Advances in Water Resources

115

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Section: Numerical Simulation Toolmentioning

confidence: 99%

CO2-induced dissolution of low permeability carbonates. Part II: Numerical modeling of experiments

Smith

Sholokhova

et al. 2013

Advances in Water Resources

115

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“…NUFT has been used extensively in GCS reservoir studies [2,3,9,10]. We investigate a pressure-management approach that can be implemented with an individual dual-mode brine-extraction/CO 2 -injection well operating within a reservoir compartment.…”

Section: Modeling Approachmentioning

confidence: 99%

“…We will develop pressure-analysis protocols, including using uncertainty quantification tools such as PSUADE [2,3,25]. An important goal of this work will be determining how to best locate shallow monitoring wells, so that pressure measurements are sufficient to assess the contribution of caprock leakage to the overall relief of pressure drawdown during the preinjection brine-extraction stage.…”

Section: Future Workmentioning

confidence: 99%

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Pre-injection Brine Production for Managing Pressure in Compartmentalized CO2 Storage Reservoirs

et al. 2014

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We present a reservoir management approach for geologic CO 2 storage that combines CO 2 injection with brine extraction. In our approach, dual-mode wells are initially used to extract formation brine and subsequently used to inject CO 2 . These wells can also be used to monitor the subsurface during pre-injection brine extraction so that key data is acquired and analyzed prior to CO 2 injection. The relationship between pressure drawdown during pre-injection brine extraction and pressure buildup during CO 2 injection directly informs reservoir managers about CO 2 storage capacity. These data facilitate proactive reservoir management, and thus reduce costs and risks. The brine may be used directly as make-up brine for nearby reservoir operations; it can also be desalinated and/or treated for a variety of beneficial uses.

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“…mineralogy, water quality, and groundwater dynamics) are collected from a representative aquifer, whereas a site‐specific model focuses on one location at which aquifers are well characterized, flow dynamics are understood, and detailed mineralogical analyses are available . Table summarizes selected numerical models that focus on not only the possibility of geochemical parameters for detecting CO 2 leakage signals in potable aquifers, but also assesses of potential degradation of groundwater quality by metals such as arsenic and lead …”

Section: Introductionmentioning

confidence: 99%

Geochemical sensitivity to CO₂leakage: detection in potable aquifers at carbon sequestration sites

Yang

Hovorka

Young

et al. 2014

Greenhouse Gas Sci Technol

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Various approaches to groundwater monitoring for CO2 leakage detection and potential impacts of groundwater quality in the above potable aquifers at geological carbon sequestration sites have been reported in literature and briefly reviewed in this study. Although geochemical para‐meters have been proposed as indicators of CO2 leakage in potable aquifers, assessing sensitivity of geochemical parameters to CO2 leakage in groundwater is needed. In this study, we present a methodology, using a geochemical model, to simulate responses of aqueous geochemistry to CO2 leakage into a potable aquifer and then to assess sensitivities of the proposed monitoring geochemical parameters based on their relative changes to initial values. The geochemical model was used to simulate CO2 leakage into carbonate‐poor and carbonate‐rich aquifers. Results of calculated sensitivities show that dissolved CO2 and dissolved inorganic carbon in groundwater are most sensitive to CO2 leakage in all settings. Alkalinity is moderately sensitive, with the best response in the presence of carbonates in the aquifer sediments while groundwater pH shows best response in the aquifer sediments with little carbonates. Impacts of initial (or baseline) groundwater chemistry on sensitivity of geochemical parameters to CO2 leakage, compared to impacts of aquifer mineralogy, appear to be minor. For monitoring purpose, dissolved CO2 and dissolved inorganic carbon are better indicators than pH and alkalinity in potable aquifers at geological carbon sequestration sites.

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Global sampling for integrating physics-specific subsystems and quantifying uncertainties of CO2 geological sequestration

Cited by 31 publications

References 35 publications

CO2-induced dissolution of low permeability carbonates. Part II: Numerical modeling of experiments

CO2-induced dissolution of low permeability carbonates. Part II: Numerical modeling of experiments

Pre-injection Brine Production for Managing Pressure in Compartmentalized CO2 Storage Reservoirs

Geochemical sensitivity to CO₂leakage: detection in potable aquifers at carbon sequestration sites

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Global sampling for integrating physics-specific subsystems and quantifying uncertainties of CO2 geological sequestration

Cited by 31 publications

References 35 publications

CO2-induced dissolution of low permeability carbonates. Part II: Numerical modeling of experiments

CO2-induced dissolution of low permeability carbonates. Part II: Numerical modeling of experiments

Pre-injection Brine Production for Managing Pressure in Compartmentalized CO2 Storage Reservoirs

Geochemical sensitivity to CO2leakage: detection in potable aquifers at carbon sequestration sites

Contact Info

Product

Resources

About

Geochemical sensitivity to CO₂leakage: detection in potable aquifers at carbon sequestration sites