STUDI MINERAL ALTERASI HIDROTERMAL LAPANGAN PANAS BUMI DIENG STUDI KASUS SUMUR, HCE-30, HCE-30A, HCE-31DAN HCE-28A
Dieng Geothermal Field is geographically located at coordinates 7 ° 11'00 "LS - 7 ° 14'00" latitude and 109 ° 51'00 "E - 109 ° 54'30" longitude, and administratively located in Wonosobo Regency, Banjarnegara Regency and Pekalongan Regency, Central Java. The...
Saved in:
| Main Author: | |
|---|---|
| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/63313 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Dieng Geothermal Field is geographically located at coordinates 7 ° 11'00 "LS - 7
° 14'00" latitude and 109 ° 51'00 "E - 109 ° 54'30" longitude, and administratively
located in Wonosobo Regency, Banjarnegara Regency and Pekalongan Regency,
Central Java. The object of research is borehole cutting and fluid content of the
well HCE-30 HCE -30A, HCE-31 and HCE-28A.
The Dieng Geothermal Field is a mature field with indications of clay-cap
formation, and has a high-temperature reservoir fluid (± 300°C), which has been
produced by PT. Geodipa Energi. The problem formulation in this research is to
find out the process that can change the condition of the reservoir’s fluid, the
occurrence of hydrothermal alteration.
This study shows that hydrothermal fluid has been on water-rock interaction
proces and boiling proses at temperature 250-340°C. These processes causes the
hydrothermal minerals alteration and change the fluid’s composition involve the
increased of ratio unsure Ca/H, Na/H and K/H and the increase of reservoir fluid
pH. |
|---|