| Project/Area Number |
18340159
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Hiroshima University (2007)
Kyoto University (2006) |
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Principal Investigator |
SHIMAMOTO Toshihiko Hiroshima University, Graduate School of Science, Professor (20112170)
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| Co-Investigator(Kenkyū-buntansha) |
HAYASAKA Yasutaka Hiroshima University, Graduate School of Science, research associate (10198830)
ANDO Jun-ichi Hiroshima University, Graduate School of Science, research Associate (50291480)
KATAYAMA Ikuo Hiroshima University, Graduate School of Science, research Associate (10448235)
KANAGAWA Kyuichi Chiba University, Graduate School of Science, Professor (40185898)
TSUTSUMI Akito Kyoto University, Graduate School of Science, Research Associate (90324607)
増田 富士雄 同志社大学, 工学部, 教授 (30091929)
徐 垣 海洋研究開発機構, 高知コアセンター, 所長 (90183847)
上原 真一 京都大学, 大学院工学研究科, 助手 (20378813)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥16,750,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2007: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2006: ¥9,600,000 (Direct Cost: ¥9,600,000)
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| Keywords | basin analysis / underground fluid flow / fault zone / Permeability / porosity / abnormal pore pressure / fault mechanics / earthquake mechanism / 断層力 / 堆積盆発達過程 |
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| Research Abstract |
The objective of this project has been to analyze basin evolution quantitatively as interacting processes among sedimentation, fluid flow, mechanical compaction and cementation, including the Skirts of fluid flow along fault zones. Head investigator moved from Kyoto University to Hiroshima University in the middle of the research period, so five new members were added from this fiscal year and researches were conducted using mostly an intravessel deformation and fluid-flow apparatus that were moved to Hiroshima University. The outcome from this fiscal year are three-folds: (1) Underground permeability and porosity structures of northwestern Taiwan, Niigata basin, Ashigara Plain, Horonobe area of northern Hokkaido and Miyazaki Plain were estimated based on laboratory measurements of transport properties of Tertiary and Quaternary sedimentary rocks. In particular, competing processes of sedimentation and fluid flow were analyzed in northwestern Taiwan using measured transport properties,
… More
elucidating the process of abnormal pore pressure developments that agrees quantitatively with measured pore presume distributions in nearly ten production wells in Taiwan gas and oil fields. (2) Fault zones dramatically affects underground fluid flow, and permeability structures of Nojima fault, Median Tectonic Line and Katagai fault were determined basal on laboratory measurements of transport properties of fault rocks Also, high-velocity friction experiments were conducted to reveal dramatic weakening processes due to frictional heating during seismic fault motion. (3) Significant role of water-soluble gases such as carton dioxide and methane in promoting rapid fluid flow was recognized in Arima-Takatsuki fault zone, little Grand Wash fault and Salt Wash fault in Utah, USA and mud eruption site in East Java, Indonesia Water-soluble gas may play very important role in many problems such as carbon dioxide capture and storage (CCS) and a systematic studies have to be conducted on this as a future development of this study. Less
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