Geochemical assessment of CO2 perturbation in a shallow aquifer evaluated by a push–pull field experiment

Rillard, Jean; Gombert, Philippe; Toulhoat, Pierre; Zuddas, Paola

doi:10.1016/j.ijggc.2013.11.019

Cited by 39 publications

(41 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After injection of CO 2 to a shallow-depth groundwater zone, several indicating parameters of CO 2 impacts on groundwater quality are monitored. In the previous test cases, CO 2 was used as a director indicator, and pH, alkalinity, heavy metals, and dissolved salts were commonly used as indirect indicators (Kharaka et al, 2010;Peter et al, 2012;Cahill and Jakobsen, 2013;Gal et al, 2013;Mickler et al, 2013;Trautz et al, 2013;Yang et al, 2013;Rillard et al, 2014).…”

Section: Shallow Groundwater Monitoring System On Controlled Co 2 Relmentioning

confidence: 99%

“…All of the controlled CO 2 release tests in the shallow aquifers have been performed since early 2010's, starting with push-pull type tests Yang et al, 2013;Rillard et al, 2014), in which injection and groundwater quality monitoring were performed through the same well. More equipped experiments have been followed by installing CO 2 injection and monitoring networks (Kharaka et al, 2010;Apps et al, 2011;Peter et al, 2011Peter et al, , 2012Zheng et al, 2012;Cahill and Jakobsen, 2013;Gal et al, 2013;Trautz et al, 2013;Cahill et al, 2014;Humez et al, 2014).…”

Section: Controlled Co 2 Release Sites In Shallow Depths Included In mentioning

confidence: 99%

“…While hydraulic properties of aquifer formations are important for transport of gaseous or dissolved CO 2 , mineralogical compositions play a critical role to determine hydrochemical evolution of groundwater quality affected by CO 2 injection (Cahill et al, 2014;Rillard et al, 2014). Mineralogical properties at the CO 2 injection points are important because water-rock interaction is most active at the injection points under the assumption of homogeneous mineral composition.…”

Section: Hydrogeological Conditions Of the Test Sitesmentioning

confidence: 99%

“…Among the 8 controlled CO 2 release test sites and 9 experimental types listed in Table 1, 3 of them are the sites where push-pull tests have been carried out by injection of CO 2 -infused groundwater Yang et al, 2013;Rillard et al, 2014) and 6 of them have independent injection-only wells and monitoring networks (Kharaka et al, (17) Injection and monitoring depths at each test site are shown in Figure 2. Injection depths ranged from 2 to 73 m bsl and they can be divided into two groups.…”

Section: Controlled Co 2 Release and Monitoring Settingmentioning

confidence: 99%

“…For computing mixing ratio, a conservative tracer such as Br and Cl was mixed with the injected CO 2 -infused water Yang et al, 2013). Without tracers, differences between background groundwater and injection water was compared to calculate the mixing ratio (Rillard et al, 2014). Compared with the expected concentrations from ideal mixing and the measured concentrations, the exceeded constituents were considered to be caused from mineral dissolution.…”

Section: Monitoring and Data Analysis For Co 2 Leakage Detection And mentioning

confidence: 99%

See 4 more Smart Citations

Shallow groundwater system monitoring on controlled CO2 release sites: a review on field experimental methods and efforts for CO2 leakage detection

Lee

Yun

et al. 2016

Geosci J

View full text Add to dashboard Cite

Carbon dioxide capture and sequestration (CCS) is a promising alternative for reduction of greenhouse gas emission. However, injected CO 2 in deep formation has potential to leak into a shallow aquifer. Thus, although it is challenging, development of detection technologies in a shallow aquifer region is essential to assure the long term safety of a CCS project. Recently, field scale experiments were carried out around the world to identify CO 2 leakage and to investigate effects on groundwater quality in shallow aquifers. From the literature, 8 controlled CO 2 release test sites and 9 experimental cases were identified. In those sites, CO 2 was artificially injected around the shallow aquifer region as CO 2 -infused groundwater phase or gas phase for identifying environmental effects caused by CO 2 injection. This paper reviews the hydraulic heterogeneity, mineral compositions, monitoring systems, and environmental parameters required for leakage detection at each site. For constructing a controlled test bed, inclined wells, horizontal wells, and multiple injection wells were identified as reliable injection components. It was also identified that the injected CO 2 migration and its effects were monitored through the constructed monitoring networks. The previous operation cases show that continuous monitoring of pH, electrical conductivity (EC), Ca and Mg concentrations is the most basic and important factor for leakage detection. Trace elements and isotopes were also widely used to determine the CO 2 leakage. The Korea CO 2 Storage Environmental Management (K-COSEM) research center is going to construct an environmental impact test (EIT) facility for developing CO 2 leakage detection methods in a shallow aquifer region in Korea. The challenging issues will include the fate and transport of CO 2 from the fractured zone to the saturated zone and to the unsaturated soil. Based on the lessons learned from the previous tests, environmental monitoring technologies will be developed through the analysis of the time series data of hydrogeochemical parameters for the planned EIT facility in Korea.

show abstract

Section: Shallow Groundwater Monitoring System On Controlled Co 2 Relmentioning

confidence: 99%

Section: Controlled Co 2 Release Sites In Shallow Depths Included In mentioning

confidence: 99%

Section: Hydrogeological Conditions Of the Test Sitesmentioning

confidence: 99%

Section: Controlled Co 2 Release and Monitoring Settingmentioning

confidence: 99%

Section: Monitoring and Data Analysis For Co 2 Leakage Detection And mentioning

confidence: 99%

See 3 more Smart Citations

Shallow groundwater system monitoring on controlled CO2 release sites: a review on field experimental methods and efforts for CO2 leakage detection

Lee

Yun

et al. 2016

Geosci J

View full text Add to dashboard Cite

show abstract

Fractional Models Simulating Non‐Fickian Behavior in Four‐Stage Single‐Well Push‐Pull Tests

Chen

Zhan

Yang

2017

Water Resources Research

View full text Add to dashboard Cite

Four‐stage single‐well push‐pull (SWPP) tracer tests, including injection, chasing, resting, and pumping, were conducted in a fractured aquifer at Newark basin. An anomalous transport phenomenon observed in the SWPP tests is the linear decline of breakthrough curves (BTCs) at late time with slope of −1.8 in log‐log plots. A time‐dependent fractional model is developed to interpret the anomalous transport behavior. This model considers a time‐dependent power law memory function and a time‐dependent fractional advection‐dispersion operator. The fractional advection‐dispersion equations (fADE) are solved in a radial coordinate system using the implicit Euler method. A semi‐analytical solution of the first‐order rate‐limited mobile‐immobile model (FORMIM) is derived for comparison. It is found that both the nonlocal transport in time and space can produce the long‐tailed BTC. A smaller time‐fractional or space‐fractional index leads to a lower peak concentration and a larger late‐time slope. The mass distribution of the fractional‐in‐space (FS) model exhibits power law decline at the leading plume edge. Early breakthrough during pumping is not observed because the mobile mass at the start of pumping is nonzero and more concentrated near the wellbore. The capacity ratio is an important factor that affects the peak concentration. A larger capacity ratio leads to greater peak concentration. A smaller time‐fractional index in the injection, chasing, or resting stage will move the BTC downward and the slope of the late time BTC is determined by the space‐fractional index over all stages and the time‐fractional index in the pumping stage. The capability of the existing models to recover the BTC of the SWPP test is discussed and some guidelines for how to choose the appropriate model to interpret the SWPP test data are proposed.

show abstract

A Review of Studies Examining the Potential for Groundwater Contamination From CO ₂ Sequestration

Varadharajan¹,

Tinnacher²,

Trautz³

et al. 2018

Geological Carbon Storage

View full text Add to dashboard Cite

Geochemical assessment of CO2 perturbation in a shallow aquifer evaluated by a push–pull field experiment

Cited by 39 publications

References 42 publications

Shallow groundwater system monitoring on controlled CO2 release sites: a review on field experimental methods and efforts for CO2 leakage detection

Shallow groundwater system monitoring on controlled CO2 release sites: a review on field experimental methods and efforts for CO2 leakage detection

Fractional Models Simulating Non‐Fickian Behavior in Four‐Stage Single‐Well Push‐Pull Tests

A Review of Studies Examining the Potential for Groundwater Contamination From CO ₂ Sequestration

Contact Info

Product

Resources

About

Geochemical assessment of CO2 perturbation in a shallow aquifer evaluated by a push–pull field experiment

Cited by 39 publications

References 42 publications

Shallow groundwater system monitoring on controlled CO2 release sites: a review on field experimental methods and efforts for CO2 leakage detection

Shallow groundwater system monitoring on controlled CO2 release sites: a review on field experimental methods and efforts for CO2 leakage detection

Fractional Models Simulating Non‐Fickian Behavior in Four‐Stage Single‐Well Push‐Pull Tests

A Review of Studies Examining the Potential for Groundwater Contamination From CO 2 Sequestration

Contact Info

Product

Resources

About

A Review of Studies Examining the Potential for Groundwater Contamination From CO ₂ Sequestration