2012 Fiscal Year Final Research Report
High-precision method for monitoring underground storage of carbon dioxide with tiltmeter
| Project/Area Number |
22360377
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Earth system and resources enginnering
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
MATSUKI Koji 東北大学, 大学院・環境科学研究科, 名誉教授 (10108475)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SAKAGUCHI Kiyotoshi 東北大学, 大学院・環境科学研究科, 准教授 (50261590)
KIZAKI Akihisa 東北大学, 大学院・環境科学研究科, 助教 (60344686)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 二酸化炭素地下貯留 / 流体流動 / 地表傾斜量 / 高精度モニタリング / 逆解析 / 多孔質弾性体 / 弾性定数 / 圧力容器 |
|---|
| Research Abstract |
In this study, to develop a high-precision method for monitoring underground flow of carbon dioxide stored at great depth with tiltmeter, firstly we clarified the dependence of the poroelastic constants on the effective confining pressure by using a triaxial testing system that was designed and constructed to reproduce the conditions up to a depth of 2,000 m. Next, performing a theoretical study on the inverse analysis of underground fluid flow in an ellipsoidal region, we proposed an inverse method for accurately determining the region of fluid flow from data containing large noises.
|
