Characterization and Comparison of geothermal fluids geochemistry within the Kızıldere Geothermal Field in Turkey: New findings with power capacity expanding studies

Tut Haklıdır , Füsun S.
Şengün, Raziye
Aydın, Hakkı
The Kızıldere geothermal field is the first known high-temperature geothermal field in Turkey. The field is located in the Büyük Menderes Graben (BMG), Western Anatolia (Turkey). There are four production sections (reservoir-I, II, III, and IV) with different rock compositions and geochemical characteristics in the production area. Identifying and characterizing these production units may give a good insight into field development plans for a sustainable production. This study aims to characterize production sections of the Kızıldere geothermal field using geology, hydrogeochemical properties such as chemistry, stable isotope, and non-condensable gas compositions. The results of gas and water analysis showed that geothermal fluids are of a meteoric origin in all producing sections. It was also found from the analyses that more intensive water-rock interactions take place as the reservoir temperature irises. Based on the different geochemical characteristics of each producing section, we thought that impermeable sediments like mica-schists and chlorite-schists lying between the reservoir units act as a seal. In light of this study, it can be concluded that the Kızıldere geothermal reservoir is very heterogeneous due to vertically compartmentalized reservoir sections that require a unique injection-production configuration for a sustainable production lifetime.


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Citation Formats
F. S. Tut Haklıdır, R. Şengün, and H. Aydın, “Characterization and Comparison of geothermal fluids geochemistry within the Kızıldere Geothermal Field in Turkey: New findings with power capacity expanding studies,” Geothermics, 2021, Accessed: 00, 2021. [Online]. Available: