Sarkowi, Muh and zaenudin, ahmad and Amukti, Rian (2014) Identification of Geothermal Ulubelu Reservoir Base on SVD Analysis and Modelling of 3D Gravity Anomaly. In: Celebes Internation Conference on Earth Science, 14-15 November 2014, Kendari.
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Abstract
The Ulubelu geothermal field is located at about 30 km northern Kota Agung Lampung. The Filed lies in steep terrain between 300 – 1600 m above sea level but mostly from 700 – 800 m, with around Mt. Rindingan, MT. Kukusan, Mt. Way Panas and Mt. Kabawok. To Understanding subsurface structure Pertamina has conducted geophysics exploration suervey in the area since 1991 including gravity, electrical resistivity and self potential methods. Data reduction and terrain correction wre applied to the observed gravity data to produce complete Bouguer anomalies. However, the complete Bouguer anomaly reflected a combination of local and regional subsurface effects. In order to get only local subsurface effect the regional effect was calculated and the subtracted from completed Bouguer anomaly. In this study, the regional gravity value over the study area were assessed using moving average with windows aray 7 km. For SVD analysis, structure in Ulubelu geothermal prospect influence by Sumatera maun structure with NE-SW orientation. Analysis well production in Ulubelu area shown that prospect geothermal field have begative SVD. Form Bouguer anomaly suggested that Ulubelu Geothermal field could be associated with a graben structure. From 3D inversion modelling shown that geothermal reservoir lays at 500 m deepness from mean sea level. Geothermal prospect are in Ulubelu located at Western and Eastern well production
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Geofisika |
| Depositing User: | MUHAMMAD S |
| Date Deposited: | 28 Feb 2023 03:25 |
| Last Modified: | 28 Feb 2023 03:25 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/48636 |
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