The role of soil flux and soil gas monitoring in the characterisation of a CO 2  surface leak: A case study in Qinghai, China

Schroder, Ivan; Zhang, H.; Zhang, C.; Feitz, Andrew

doi:10.1016/j.ijggc.2016.07.030

Cited by 32 publications

(11 citation statements)

References 35 publications

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“…Indeed, the need to understand and monitor gas fluxes is ubiquitous in many areas of human activity. For example, on the carbon capture and storage sites, the monitoring of CO2 fluxes is necessary to detect and quantify eventual leakages to the environment (Bernardo and Vries, 2011;Beaubien et al, 2013;Schroder et al, 2016;Elío et al, 2016). Following landfill gas emissions across the surface of landfills is also essential.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the low cost of this non-intrusive method which is easy to set up, it has been widely used (Cotel et al, 2015;Elío et al, 2016;Jassal et al, 2005;Matthias et al, 1980;Norman et al, 1997;Reinhart et al, 1992;Rochette and Hutchinson, 2005;Viveiros et al, 2008). Indeed, this technique allows to carry out in situ measurements quickly and on a large number of points compared to other techniques (Schroder et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Soil carbon dioxide fluxes to atmosphere: The role of rainfall to control CO2 transport

Delsarte

Cohen

Momtbrun

et al. 2021

Applied Geochemistry

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In order to observe the relationships between the temporal variations of CO2 surface fluxes and the CO2 soil gas transport in soil profile before and during rainfall events, two experiments were conducted in a controlled natural environment at different time periods.These experiments consisted in injecting pure CO2 in a lysimeter at 160 cm depth and simulating heavy rainfall event at its surface for 2 weeks. During the whole experiments, CO2 soil gas concentrations and surface fluxes were continuously monitored. These measurements showed that the flux measured through the flux chamber were consistent with the concentration profiles. During simulated rainfall events, the concentrations and fluxes showed a clear change linked to the presence of water on the top of the water profile. The results clearly show a significant decrease of CO2 flux to atmosphere induced by rainfall infiltration and consequential wash-out of the CO2 present in the soil.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soil carbon dioxide fluxes to atmosphere: The role of rainfall to control CO2 transport

Delsarte

Cohen

Momtbrun

et al. 2021

Applied Geochemistry

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“…The crustal components that were present ( 4 He, 40 Ar) were consistent with production in the crust rather than trends expected of upward migration. In contrast, Ballentine et al documented 4 He/ 40 Ar ratios that increased by orders of magnitude at shallower depths in a stacked hydrocarbon system. 8 Groundwater noble gases at Sites 1 and 2 likely originated in situ or dissolved from the atmosphere during recharge rather than from depth.…”

Section: Noble Gasesmentioning

confidence: 87%

“…Independent of the depth or mechanisms by which CO 2 may enter the overburden, whether it be through faults, fractures, or well failures, evidence suggests that subsurface gas migration follows a circuitous pathway marked by lateral migration, ponding, and pooling at intermediate levels . Evidence from industrial well failures such as at the Salt Creek CO 2 ‐EOR field, the Aliso Canyon natural gas storage site, and CO 2 ‐rich artesian well failure at Qinghai, China also indicates unpredictable subsurface migration of CO 2 even if release is relatively shallow within the overburden. Thus, it is clear that, with the exception of migration up wellbores or breach blowouts, CO 2 in the overburden will have the chance to react.…”

Section: Introductionmentioning

confidence: 99%

Light hydrocarbon and noble gas migration as an analogue for potential CO₂ leakage: numerical simulations and field data from three hydrocarbon systems

Anderson¹,

Alfi²,

Hovorka

2019

Greenhouse Gases

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Sites where anthropogenic CO2 captured from industrial sources is stored in deep geological formations for climate change mitigation are required to show secure retention of the injected CO2. Monitoring, reporting, and verification (MRV) plans are needed to indicate that no CO2 release has occurred. We explored the degree to which direct comparison between a surface anomaly and reservoir geochemistry using various geochemical parameters can be used for attribution. We used data collected on light hydrocarbons and noble gases throughout the sedimentary column at three CO2 enhanced oil recovery (EOR) sites to understand the processes that may cause fluid evolution. Light hydrocarbon and noble gases were sampled from reservoirs, gas‐bearing intervals above reservoirs, and groundwater. Vertical profiles indicated that lighter components are relatively enriched during migration (i.e. chromatographic separation). Static and numerical models were designed to simulate episodic gas migration and geochemical alteration of these geochemical parameters from solubility and sorption. The effects of hydrocarbon solubility were minimal (Bernard ratio changes within 5.2%) although field data were within the range of expected alterations from sorption. Forward models of CO2 migration and noble gas interactions showed that CO2 stripping causes an enrichment of crustal noble gases. In areas where natural fluxes of CO2 from depth are non‐existent, the occurrence of crustal noble gas signature may distinguish fugitive CO2 from the reservoir from natural near‐surface sources, and could be considered to explain apparent fluid anomalies. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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“…In particular, the monitoring of subsurface CO 2 leakage from natural fractures or tectonic faults is essential. Leakage monitoring can be conducted by continuously measuring soil CO 2 flux from the soil surface to identify possible leakage sources [4][5][6][7][8][9][10][11].…”

mentioning

confidence: 99%

A Threshold Line for Safe Geologic CO2 Storage Based on Field Measurement of Soil CO2 Flux

Kuriyama

Huy

Salmawati

et al. 2021

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Carbon capture and storage (CCS) is an established and verified technology that can implement zero emissions on a large enough scale to limit temperature rise to below 2 °C, as stipulated in the Paris Agreement. However, leakage from CCS sites must be monitored to ensure containment performance. Surface monitoring of carbon dioxide (CO2) concentrations at onshore CCS sites is one method to locate and quantify CCS site leakage. Employing soil accumulation chambers, we have established baseline data for the natural flux of CO2 as a threshold alert to detect CO2 leakage flux to ensure the safety of onshore CCS sites. Within this context, we conducted on-site CO2 measurements at three different locations (A, B, and C) on the INAS test field at the Ito campus, Kyushu University (Japan). Furthermore, we developed a specific measurement system based on the closed-chamber method to continuously measure CO2 flux from soil and to investigate the correlation between CO2 flux from the soil surface and various parameters, including environmental factors and soil sample characteristics. In addition, gas permeability and the effect of different locations on soil CO2 flux are discussed in this study. Finally, we present an equation for estimating the soil CO2 flux used in the INAS field site that includes environmental factors and soil characteristics. This equation assists in defining the threshold line for an alert condition related to CO2 leakage at onshore CCS sites.

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The role of soil flux and soil gas monitoring in the characterisation of a CO 2 surface leak: A case study in Qinghai, China

Cited by 32 publications

References 35 publications

Soil carbon dioxide fluxes to atmosphere: The role of rainfall to control CO2 transport

Soil carbon dioxide fluxes to atmosphere: The role of rainfall to control CO2 transport

Light hydrocarbon and noble gas migration as an analogue for potential CO₂ leakage: numerical simulations and field data from three hydrocarbon systems

A Threshold Line for Safe Geologic CO2 Storage Based on Field Measurement of Soil CO2 Flux

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The role of soil flux and soil gas monitoring in the characterisation of a CO 2 surface leak: A case study in Qinghai, China

Cited by 32 publications

References 35 publications

Soil carbon dioxide fluxes to atmosphere: The role of rainfall to control CO2 transport

Soil carbon dioxide fluxes to atmosphere: The role of rainfall to control CO2 transport

Light hydrocarbon and noble gas migration as an analogue for potential CO2 leakage: numerical simulations and field data from three hydrocarbon systems

A Threshold Line for Safe Geologic CO2 Storage Based on Field Measurement of Soil CO2 Flux

Contact Info

Product

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Light hydrocarbon and noble gas migration as an analogue for potential CO₂ leakage: numerical simulations and field data from three hydrocarbon systems