Development of Leakage Resistant Well-Cements for Geo-Sequestration of Carbon Dioxide Application using Alkali Activated Slag and Geopolymer Cements

使用碱活性矿渣和地质聚合物水泥开发用于二氧化碳地质封存应用的防渗漏水泥

• 批准号: DP1096456
• 负责人: Prof Jay Sanjayan
• 金额: $ 20.74万
• 依托单位: Swinburne University of Technology
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2010
• 资助国家: 澳大利亚
• 起止时间: 2010-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP1096456
• 关键词: Development; Leakage; Resistant; Well; Cements

The biggest threat facing life now is climate change due to carbon dioxide (CO2) emissions. Extreme weathers are increasing in frequency and intensity, as evidenced by recent bushfires, and it is predicted to get worse unless carbon mitigation strategies are quickly implemented. Geo-sequestration is the technology of capturing and storing of the CO2 deep below ground for long time (>1000 years). It offers the best hope for large reductions of CO2 emissions. However, CO2-brine stored under pressure is acidic and has the risk of leaking in the long term by dissolving the cement used to seal the pipe wells. This project will develop alternative novel cements which are acid resistant and will not allow CO2 to leak through the sealed wells.

现在生命面临的最大威胁是二氧化碳（CO2）排放导致的气候变化。正如最近的丛林大火所证明的那样，极端天气的频率和强度正在增加，并且如果不迅速实施碳减排策略，预计情况会变得更糟。地质封存是长期（>1000年）在地下深处捕获和储存二氧化碳的技术。它为大幅减少二氧化碳排放提供了最好的希望。然而，在压力下储存的二氧化碳盐水是酸性的，从长远来看，由于溶解用于密封管井的水泥而存在泄漏的风险。该项目将开发替代的新型水泥，这种水泥具有耐酸性，并且不会让二氧化碳通过密封井泄漏。