Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR029679 |
Exploring the Impacts of Source Condition Uncertainties on Far-Field Brine Leakage Plume Predictions in Geologic Storage of CO2: Integrating Intermediate-Scale Laboratory Testing with Numerical Modeling | |
Ahmad H. Askar; Tissa H. Illangasekare; Andrew Trautz; Jakub Solovský; Ye Zhang; Radek Fuč; í; k | |
2021-08-30 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | Natural fissures/faults or pressure-induced fractures in the caprock confining injected CO2 have been identified as potential leakage pathways of far-field native brine contaminating underground sources of drinking water. Developing models to simulate brine propagation through the overlaying formations and aquifers is essential to conduct reliable pre- and post-risk assessments for site selection and operation, respectively. One of the primary challenges of performing such simulations is lack of adequate information about source conditions, such as hydro-structural properties of caprock fracture/fault zone and the permeability field of the storage formation. This research investigates the impact of source condition uncertainties on the accuracy of leaking brine plume predictions. Prediction models should be able to simulate brine leakage and transport in complex multilayered geologic systems with interacting regional natural and leakage flows. As field datasets are not readily available for model testing and validation, three comprehensive intermediate-scale laboratory experiments were used to generate high-resolution spatiotemporal data on brine plume development under different leakage scenarios. Experimental data were used to validate a flow and transport model developed using existing code FEFLOW to simulate brine plume under varying source conditions. Spatial moment analysis was conducted to evaluate how uncertainty in source conditions impacts brine migration predictions. Results showed that inaccurately prescribing the permeability field of storage formation and caprock fractures in models can cause errors in leakage pathway and spread predictions up to ∼19% and ∼100%, respectively. These findings will help in selecting and characterizing storage sites by factoring in potential risks to shallow groundwater resources. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/337583 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Ahmad H. Askar,Tissa H. Illangasekare,Andrew Trautz,et al. Exploring the Impacts of Source Condition Uncertainties on Far-Field Brine Leakage Plume Predictions in Geologic Storage of CO2: Integrating Intermediate-Scale Laboratory Testing with Numerical Modeling[J]. Water Resources Research,2021. |
APA | Ahmad H. Askar.,Tissa H. Illangasekare.,Andrew Trautz.,Jakub Solovský.,Ye Zhang.,...&k.(2021).Exploring the Impacts of Source Condition Uncertainties on Far-Field Brine Leakage Plume Predictions in Geologic Storage of CO2: Integrating Intermediate-Scale Laboratory Testing with Numerical Modeling.Water Resources Research. |
MLA | Ahmad H. Askar,et al."Exploring the Impacts of Source Condition Uncertainties on Far-Field Brine Leakage Plume Predictions in Geologic Storage of CO2: Integrating Intermediate-Scale Laboratory Testing with Numerical Modeling".Water Resources Research (2021). |
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