Haty, Intan Paramita and Harjanto, Agus and Putra, Muhammad Arbaan Syah (2019) TEMPERATURE OF GEOTHERMAL RESERVOIR “KU” FIELD ANALYSIS BASED ON SECONDARY MINERALS AND GEOCHEMISTRY WELL “X” PANGOLOMBIAN DISTRICT, MINAHASA, NORTH SULAWESI. Journal Techno, 5 (1). pp. 55-68. ISSN 2461-1484
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Abstract
Geothermal is one of alternative energy which is very potential to produced in Indonesia because Indonesia have 40% world geothermal reserve . Nowadays, geothermal potential in Indonesia up to 28,5 Giga Watt (GW). Whereas Installed Geothermal Power Generator only about 1948,5 MW. North Sulawesi is one of geothermal generating area in Indonesia, spesifically in Minahasa Compartment. Research area geomorphologically consist of Volcanic Hill Unit, Volcanic crater lake Unit, Tampusu Volcanic slope Unit, Kasuan Volcanic slope unit, and Tondano Caldera slope Unit. Research area composed of Volcanic products with volcanostratigraphy from the youngest is Pangolombian Volcanic Breccia Unit, Tampusu Basaltic Andesite lava unit, Linau basaltic andesite lava unit, and kasuan basaltic andesite lava unit. Geothermal manifestation in research area consist of Linau Fumarol, Leilem Hotspring, Lahendong I and II Hot spring, Leilem Mudpool. Fluid geochemistry analysis shows all manifestation samples are steam heated water and immature water. While well “X” fluid sample shows Sulphate-Chloride water in partial equilibrium to immature condition. Hydthermal alteration in well “X” consist of Kaoline±Smectite±Chlorite zone, Kaoline±Illite±Sericite zone, and Epidote±Hematite±Chlorite±Illite zone. Geothermal reservoir temperatur based on Linau Fumarole Geothermomether about 292 o o C – 304 C, fluid well “x” geothermomether o about 276 o C – 294 C, ancient temperature based on secondary minerals about 230 o C – o 290 C, and measured temperature from temperature graph on well “X” about 276 o C - o 294 C. Depends on reservoir temperature, “KU” Geothermal Field is High Temperature Geothermal System.
| Item Type: | Article |
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| Uncontrolled Keywords: | Geothermal, Temperature, Alteration, Geochemistry, North Sulawesi |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr.ST,MT AGUS HARJANTO |
| Date Deposited: | 10 Dec 2019 01:35 |
| Last Modified: | 10 Dec 2019 01:35 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/21812 |
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