| DOI: | 10.2172/1302338
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| 报告号: | USU-DOE--0004991-1
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| 报告题名: | Impact of Micro-to Meso-scale Fractures on Sealing Behavior of Argillaceous Cap Rocks For CO<sub>2</sub> Sequestration |
| 作者: | Evans, James (ORCID:0000000221813866)
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| 出版年: | 2016
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| 发表日期: | 2016-08-01
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| 总页数: | 107
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | CO2
; seal
; integrity
; bypass
; storage
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| 英文摘要: | This multi-disciplinary project evaluated seal lithologies for the safety and security of long-term geosequestration of CO2. We used integrated studies to provide qualitative risk for potential seal failure; we integrated data sets from outcrop, core, geochemical analysis, rock failure properties from mechanical testing, geophysical wireline log analysis, and geomechanical modeling to understand the effects of lithologic heterogeneity and changing mechanical properties have on the mechanical properties of the seal. The objectives of this study were to characterize cap rock seals using natural field analogs, available drillhole logging data and whole-rock core, geochemical and isotopic analyses. Rock deformation experiments were carried out on collected samples to develop better models of risk estimation for potential cap rock seal failure. We also sampled variably faulted and fractured cap rocks to examine the impacts of mineralization and/or alteration on the mechanical properties. We compared CO2 reacted systems to non-CO2 reacted seal rock types to determine response of each to increased pore fluid pressures and potential for the creation of unintentional hydrofractures at depth. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1302338
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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/42047
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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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| 1302338.pdf（5948KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Evans, James . Impact of Micro-to Meso-scale Fractures on Sealing Behavior of Argillaceous Cap Rocks For CO<sub>2</sub> Sequestration. 2016-01-01.
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