Imaging of Geothermal Fluid Flow by Using Fluid Flow Electromagnetic Method
- Key words
- Geophysical exploration, Electromagnetic method, Fluid flow monitoring
- Location
- Yamakawa, Japan
- Conference
- World Geothermal Congress
- Year
- 2010
- Session
- 13. Geophysics
- Language
- English
- Paper number
- 1340
Full text
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Abstract
A new electromagnetic method called the Fluid Flow Electromagnetic (FFEM) method was developed to monitor the behavior of subsurface fluid flow. This method is based on an electromagnetic phenomena induced by subsurface fluid flow. In order to observe an electromagnetic field associated with subsurface fluid flow precisely, a portable triaxial magnetometer was developed to detect the three components of magnetic fields. A dynamic active filter was also developed to reduce electromagnetic noise using switched capacitor low pass filter controlled by a microprocessor. The results of field experiments are shown in this paper.
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