Experimental Study on CO2 Injection into HDR Geothermal Reservoir
- Conference
- Australian Geothermal Energy Conference
- Year
- 2008
- Language
- English
Full text
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Abstract
The purpose of this research is to study sequestering CO2 in solid carbonate minerals. CO2 dissolved in water was injected into an open hole interval of a 1,100 m depth well which was drilled into a Hot Dry Rock (HDR) geothermal reservoir. The bottom hole temperature was measured around 230 °C. Ca concentration of the water sampled at 1,030 m depth increased in a few hours after CO2 dissolved water injection. Calcite precipitation on calcite crystals set in CO2 dissolved water at 850 m in the well was observed within a few hours.
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