JpGU-AGU Joint Meeting 2017

Presentation information

[JJ] Oral

S (Solid Earth Sciences) » S-VC Volcanology

[S-VC48] [JJ] Hydrothermal systems of volcanoes

Thu. May 25, 2017 9:00 AM - 10:30 AM A05 (Tokyo Bay Makuhari Hall)

convener:Yasuhiro Fujimitsu(Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University), Tsuneomi Kagiyama(Graduate School of Science, Kyoto University), Takeshi Ohba(Department of chemistry, School of Science, Tokia University), Chairperson:Yasuhiro Fujimitsu(Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University), Chairperson:Takeshi Ohba(Department of chemistry, School of Science, Tokia University)

9:45 AM - 10:00 AM

[SVC48-04] Geochemical simulation for hydrothermal activity

*Norio Yanagisawa1 (1.Geothermal Energy Team, Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology)

Keywords:geochemical simulation, chemical composition, degas

The estimation of geochemcal change in volcanic and geothermal process is important. And the geochemical calculator (simulator), for example, Solveq-Chiller, is useful tool to calculate of fluid change.
Especially, in Hijiori EGS field, calcite precipite with CO2 gas release with pH increasing from hot water fluid due to rapidly super-saturated as calcite calculated by Solveq-Chiller.
And we calculated in the case of reaction between CO2 gas and fluid, mass balance and case study of CO2 gas injection simulation using Hijiori EGS system.
And the phase balance have to be considered in other volacanic and geothermal system and we will show other field examples.