| Title | Experimental Study on CO2 Injection into HDR Geothermal Reservoir |
|---|---|
| Authors | Kaieda, H., Kubota, K., Wakahama, H.2, Mito, S., Ueda, A., Ohsumi, T., Yajima, T., Satoh, H., Kaji, Y., Sugiyama, K. and Ozawa, A. |
| Year | 2008 |
| Conference | Australian Geothermal Energy Conference |
| Keywords | |
| 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. |