Estimating the Hction of Reinjected Water Returned to the Production Fluid at Sumikawa, Japan
- Location
- Sumikawa, Japan; Sengan Geothermal Area
- Conference
- New Zealand Geothermal Workshop
- Year
- 2000
- Session
- Reservoir Engineering (Measurements, Injection)
- Language
- English
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Abstract
We have analyzed chemical monitoring data fiom three production wells at Sumikawa to assess the fraction of reinjected water in the produced fluid. Fractions are estimated sequentially with an on-line analysis method applied to a lumped parameter reservoir model. Production fluids from each well receive different magnitudes of reinjection returns. Appreciable changes in estimated fractions occur with time at production Well SC-1.
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