| DOI: | 10.2172/1113759
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| 报告号: | None
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| 报告题名: | Geomechanical Simulation of CO{sub 2} Leakage and Cap Rock Remediation |
| 作者: | Nygaard, Runar; Bai, Baojun; Eckert, Andreas
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| 出版年: | 2012
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| 发表日期: | 2012-09-30
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| 国家: | 美国
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| 语种: | 英语
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| 中文主题词: | 压差
; 含水层
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| 主题词: | DIFFERENTIAL PRESSURE
; AQUIFERS
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| 英文摘要: | CO{sub 2} sequestration into porous and permeable brine filled aquifers is seen as one of the most likely near-term solutions for reducing greenhouse gases. Safely storing injected CO{sub 2}, which is less dense than water, requires trapping the CO{sub 2} under an impermeable rock which would act as a seal. One of the concerns with CO{sub 2} sequestration is the generation of new fractures or reactivation of existing fractures and faults caused by CO{sub 2} injection into the sealing formation. Mitigation strategies must be developed to remediate potentially leaking faults or fractures. This project evaluated potential storage scenarios in the state of Missouri and developed coupled reservoir and geomechanic simulations to identify storage potential and leakage risks. Further, several injectable materials used to seal discontinuities were evaluated under subsurface conditions. The four sealant materials investigated were paraffin wax, silica based gel, polymer based gel, and micro-cement, which all significantly reduced the fracture permeability. However, the micro-cement was the most effective sealing agent and the only sealant able to withstand the large differential pressure caused by CO{sub 2} or brine injection and create a strong seal to prevent further fracturing. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1113759
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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/40513
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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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| 1113759.pdf（14526KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Nygaard, Runar,Bai, Baojun,Eckert, Andreas. Geomechanical Simulation of CO{sub 2} Leakage and Cap Rock Remediation. 2012-01-01.
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