2016 Fiscal Year Final Research Report
Development of calculaton procedure for resolving the mechanizm of soil deformation in collectiong gas resouces under the sea bed
| Project/Area Number |
15K14266
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 間隙水 / 海底地盤 / 水圧破壊 / コールベットメタン / メタンgハイドレート / シェールガス / 資源採取 / シミュレーション技術 |
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| Outline of Final Research Achievements |
The hydraulic fracturing technique of geological layer has been developed for collecting shale gas and shale oil, and it has become to be possible to collect the resources which cannot been utilizing before. In this paper, the mechanism of the fracture behavior of geological layer or rock stratum is investigate by numerical simulation utilizing the general purpose FE software and home-made program applying DEM. At first, the change of pressure distribution is calculated by simulating the flow of water in geological layer when the high pressurized water is installed at bottom of the production well. In this simulation, the diffusion problem of water due to the pressure gradient is replaced by the heat diffusion problem. Then, the validity of this simulation is tried to verify through experiment. Moreover, the pressure distribution obtained by FEM is loaded into DEM program and the fracture behavior of geological layer due to pressure gradient is simulated.
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| Free Research Field |
船体構造強度
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