Interpretation of DC Resistivity Data to Recognized Geothermal Prospect at Sampuraga, North Sumatera, Indonesia
- Key words
- geothermal, resistivity, Sampuraga
- Location
- Sampuraga, Indonesia; Sumatra
- Conference
- World Geothermal Congress
- Year
- 2010
- Session
- 13. Geophysics
- Language
- English
- Paper number
- 1374
Full text
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Abstract
Sampuraga is one of the geothermal areas in Sumatera. There are hot springs with temperature ranging from 97 to 100.8 oC, neutral pH and flow rate ranging from 2 to 4 liter/second. Resistivity survey was to know geothermal prospect in this area. This method was used to predict the depth and thickness of cap rock, and determine the location of top reservoir. The array measurement method was schlumberger configuration. The results indicated that low resistivity zone covered Sampuraga hot springs, with the area of 7 km2. The depth of cap rock is about 200 – 500 m and its thickness is 500 – 700 m. The depth of top reservoir is about 650 – 800 m.
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