Assessing the usefulness of the isotopic composition of CO2 for leakage monitoring at CO2 storage sites: A review

Mayer, Bernhard; Humez, Pauline; Becker, Veith; Dalkhaa, Chantsalmaa; Rock, Luc; Myrttinen, Anssi; Barth, Johannes A. C.

doi:10.1016/j.ijggc.2015.02.021

Cited by 50 publications

(30 citation statements)

References 102 publications

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“…Stable carbon isotopes have been regarded as suitable tracers to assess CO 2 migration and detect potential leakage, especially at large injection sites, e.g. [55][56][57]. However, this method requires the injected CO 2 to be isotopically distinct from background sources of CO 2 to be effective [57].…”

Section: Discussionmentioning

confidence: 99%

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Numerical investigation of the partitioning phenomenon of carbon dioxide and multiple impurities in deep saline aquifers

Jiang

2017

Applied Energy

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Highlights• The partitioning behaviours of impure CO 2 in geological formations are investigated.• The effects of N 2 , CH 4 or the mixture of N 2 and CH 4 are generally similar.• Less soluble N 2 and CH 4 enhance gas breakthroughs and the partitioning.• More soluble species such as H 2 S dissolves preferentially in the formation brine. AbstractThe partitioning behaviours of CO 2 with three kinds of common impurities, i.e., N 2 , CH 4 and H 2 S, in the formation brine are investigated by numerical simulations. The results indicate that the effects of N 2 , CH 4 or the mixture of N 2 and CH 4 at the same concentrations are generally similar. The leading gas front is usually made up of less soluble impurities, such as N 2 , CH 4 or the mixture of N 2 and CH 4 , while more soluble species such as H 2 S has dissolved preferentially in the formation brine. The separations between different gas species increase as the gas displacement front migrates forwards and contacts more of the aqueous phase. Compared with the partitioning results of the 98% CO 2 and 2% H 2 S mixture, the results indicate that the inclusion of less soluble N 2 and/or CH 4 results in an earlier gas breakthrough and a longer delay between the breakthrough times of CO 2 and H 2 S. The early breakthrough of the gas phase is mainly because that the addition of N 2 and/or CH 4 lowers the viscosity of the gas phase, resulting in a higher gas velocity than that of the CO 2 -H 2 S mixture. Meanwhile, the mobility ratio is higher and the gas mixture contacts the formation brine over a larger area, giving rise to more efficient stripping of the more soluble gas species like H 2 S and thus larger separations. In the meantime, with the same total concentrations of impurities (12%), when 2% H 2 S is contained in the CO 2 streams, gas phase flows slower and thus the breakthrough time is later. Furthermore, the effects on the partitioning phenomenon are weaker with decreasing concentrations of N 2 and/or CH 4 (from 10% to 2%) with fixed concentrations of other impurity like H 2 S (2%). The migration distances and the separations between different gas species change linearly with time on the whole, as confirmed by a simulation in a longer model.

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Section: Discussionmentioning

confidence: 99%

“…[55][56][57]. However, this method requires the injected CO 2 to be isotopically distinct from background sources of CO 2 to be effective [57]. The work presented here addresses the issue of co-injected impurities.…”

Section: Discussionmentioning

confidence: 99%

Numerical investigation of the partitioning phenomenon of carbon dioxide and multiple impurities in deep saline aquifers

Jiang

2017

Applied Energy

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“…Labotka et al, 2015) does not impart any secondary C-isotope fractionation effects during CO 2 dissolution. The current state of knowledge indicates that the influence of salinity on C-isotope partiotining between CO 2(g) and DIC (i.e., the 'salt-effect') is negligible (however this is not the case for O-isotopes); while studies in this field are still somewhat limited, Mayer et al (2015) observe that ''there is currently no evidence that these effects would significantly compromise the suitability of the stable isotopic composition of injected CO 2 as a tracer tool. "…”

Section: Forecasting δ 13 C Values For Sequestration-related Carbonatmentioning

confidence: 99%

In situ δ13C and δ18O microanalysis by SIMS: A method for characterizing the carbonate components of natural and engineered CO2-reservoirs

Śliwiński

Kitajima

Kozdon

et al. 2017

International Journal of Greenhouse Gas Control

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This work addresses the potential utility of in situ carbon and oxygen isotope microanalysis (δ 13 C and δ 18 O) by secondary ion mass spectrometry (SIMS) in carbon sequestration research. A desirable long-term consequence of CO 2-injection into underground rock formations at prospective sequestration sites (such as deep saline sandstone aquifers capped by impermeable strata) is the precipitation of carbonate mineral cements, the isotopic fingerprinting of which is a central theme here. More specifically, we focus on the unique advantage of the SIMS technique, which lies in the capability of analyzing very small sample volumes that are otherwise inaccessible to sampling techniques in conventional isotope ratio mass spectrometry (IRMS). For example, single carbonate crystallites as small as 3-10 µm across can be readily analyzed by SIMS with sub per-mil (‰) accuracy and precision. Importantly, the ability to perform micrometer-scale measurements in situ from either thin sections or 1-inch (25 mm) diameter polished core plugs preserves the petrographic context of measured carbonate δ 18 O and δ 13 C values. We provide a preliminary characterization of the pre-injection mineralogy and isotopic fingerprints of carbonate cements in the Mount Simon Sandstone reservoir and the overlying shaly caprock (the Eau Claire Formation) at the Illinois Basin Decatur Project, a demonstration and research site for exploring the feasibility of long-term CO 2 storage in a deep saline aquifer. By drawing upon published data on ambient reservoir conditions and the isotopic composition of the injected CO 2 , we make simple predictions regarding possible δ 13 C values of calcite, dolomite-ankerite, and siderite cements that may form in response to long-term CO 2 storage.

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“…A group of 81 papers (9.5%) focused on tracing methods, with the goal of more easily tracking any potential leakage of CO 2 . Key papers include Humez et al [36] (d = 190), who reviewed existing geochemical monitoring and tracing tools for shallow freshwater aquifers, complemented by an overview of sensitive indirect detection methods (which have not been applied in the field) as an avenue for further research, and Mayer et al [37] (d = 182), who reviewed and recommended an isotopic composition of CO 2 as a suitable tracer at large CO 2 injection sites. Key papers within a second group, those of general analyses (72 papers, 8.5%), included Jenkins et al [38] (d = 187), who examined the progress in monitoring and verification regarding the containment, conformity, and environmental impact, as well as Kim et al [39] (d = 75), who conducted a critical review of the environmental impact monitoring of the offshore storage of CO 2 , and recommended further research from a marine ecosystem perspective.…”

Section: The Base Paper Networkmentioning

confidence: 99%

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

Viebahn

Chappin

2018

Energies

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For many years, carbon capture and storage (CCS) has been discussed as a technology that may make a significant contribution to achieving major reductions in greenhouse gas emissions. At present, however, only two large-scale power plants capture a total of 2.4 Mt CO 2 /a. Several reasons are identified for this mismatch between expectations and realised deployment. Applying bibliographic coupling, the research front of CCS, understood to be published peer-reviewed papers, is explored to scrutinise whether the current research is sufficient to meet these problems. The analysis reveals that research is dominated by technical research (69%). Only 31% of papers address non-technical issues, particularly exploring public perception, policy, and regulation, providing a broader view on CCS implementation on the regional or national level, or using assessment frameworks. This shows that the research is advancing and attempting to meet the outlined problems, which are mainly non-technology related. In addition to strengthening this research, the proportion of papers that adopt a holistic approach may be increased in a bid to meet the challenges involved in transforming a complex energy system. It may also be useful to include a broad variety of stakeholders in research so as to provide a more resilient development of CCS deployment strategies.

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Assessing the usefulness of the isotopic composition of CO2 for leakage monitoring at CO2 storage sites: A review

Cited by 50 publications

References 102 publications

Numerical investigation of the partitioning phenomenon of carbon dioxide and multiple impurities in deep saline aquifers

Numerical investigation of the partitioning phenomenon of carbon dioxide and multiple impurities in deep saline aquifers

In situ δ13C and δ18O microanalysis by SIMS: A method for characterizing the carbonate components of natural and engineered CO2-reservoirs

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

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