| Co-Investigator(Kenkyū-buntansha) |
増岡 健太郎 大成建設株式会社技術センター, その他部局等, 課長代理 (10393711)
山本 肇 大成建設株式会社技術センター, その他部局等, チームリーダー (10417090)
佐藤 晃 熊本大学, 大学院先端科学研究部(工), 教授 (40305008)
北村 圭吾 九州大学, 工学研究院, 学術研究員 (60618825)
池見 洋明 日本文理大学, 工学部, 教授 (90380576)
本田 博之 九州大学, 工学研究院, 助教 (40894001)
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| Budget Amount *help |
¥42,900,000 (Direct Cost: ¥33,000,000、Indirect Cost: ¥9,900,000)
Fiscal Year 2021: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2020: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2019: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2018: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2017: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
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| Outline of Final Research Achievements |
In this study, we developed a laboratory test apparatus to clarify the flow and storage characteristics of supercritical CO2 in low permeable sandstone. And the mechanism of flow and storage in low permeable sandstone has been clarified. Furthermore, we constructed a new flow/storage model that considers the mechanism of supercritical CO2 in rocks, and developed a numerical simulation has been conducted.
As a result, it confirms that CO2 penetrates low permeable sandstone while branching. It was found that residual gas trapping is the dominant storage mechanism for CO2 geological sequestration in rocks with low permeability. In addition, it is shown that low permeability sandstone is suitable for Deep Saline Aquifer (DSA) when caprock is not required because it can store a large amount of CO2 over a long period of time through residual gas trapping.
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