Development of Carbon Dioxide Microbubble Sequestration into Saline Aquifer and CO₂-EOR Reservoirs

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• 作者：Ziqiu Xue ; Shinya Tsuji ; Hiromichi Kameyama ; Susumu Nishio ; Toshifumi Matsuoka
• 关键词：CO2 microbubble ; enhanced dissolution ; geophysical monitoring ; P-wave velocity ; resistivity
• 刊名：Energy Procedia
• 出版年：2013
• 出版时间：2013
• 年：2013
• 卷：37
• 期：Complete
• 页码：4628-4634
• 全文大小：1782 K

文摘

CO₂ microbubble injection into saline aquifers can accelerate CO₂ dissolution and trapping and minimize the free CO₂ in the subsurface. As CO₂ is dissolved in formation water, it will change the pH and CO₂ will be converted into stable carbonate minerals as a result of geochemical reactions. These trapping mechanism contribute effectively to the long term safety of large-scale CO₂ storage. CO₂ microbubble sequestration is also a novel technology to store CO₂ from the small- to middle-scale emission sources such as oil refinery and hydrogen filling station, by enhanced dissolution and effective use of pore space suggested by our experimental results.