| DOI: | 10.2172/1006401
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| 报告号: | LBNL-4266E
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| 报告题名: | A Simplified 1-D Model for Calculating CO2 Leakage through Conduits |
| 作者: | Cook, DR
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| 出版年: | 2011
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| 发表日期: | 2011-02-15
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| 国家: | 美国
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| 语种: | 英语
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| 英文摘要: | In geological CO{sub 2} storage projects, a cap rock is generally needed to prevent CO{sub 2} from leaking out of the storage formation. However, the injected CO{sub 2} may still encounter some discrete flow paths such as a conductive well or fault (here referred to as conduits) through the cap rock allowing escape of CO{sub 2} from the storage formation. As CO{sub 2} migrates upward, it may migrate into the surrounding formations. The amount of mass that is lost to the formation is called attenuation. This report describes a simplified model to calculate the CO{sub 2} mass flux at different locations of the conduit and the amount of attenuation to the surrounding formations. From the comparison among the three model results, we can conclude that the steady-state conduit model (SSCM) provides a more accurate solution than the PMC at a given discretization. When there is not a large difference between the permeability of the surrounding formation and the permeability of the conduits, and there is leak-off at the bottom formation (the formation immediately above the CO{sub 2} plume), a fine discretization is needed for an accurate solution. Based on this comparison, we propose to use the SSCM in the rapid prototype for now given it does not produce spurious oscillations, and is already in FORTRAN and therefore can be easily made into a dll for use in GoldSim. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1006401
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/40311
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1006401.pdf（114KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Cook, DR. A Simplified 1-D Model for Calculating CO2 Leakage through Conduits. 2011-01-01.
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