Probabilistic Resource Assessment of The Ulumbu Geothermal Field, East Nusa Tenggara, Indonesia
Vol. 9 No. 2 (2022), Articles
Vol. 9 No. 2 (2022)

Probabilistic Resource Assessment of The Ulumbu Geothermal Field, East Nusa Tenggara, Indonesia

Articles
https://doi.org/10.17014/ijog.9.2.183-193
Published 20-04-2022
Heru Berian Pratama
Geothermal Engineering, Master Programme, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jln. Ganesha 10, Bandung 40132,
Iqbal Kurniawan
Geothermal Engineering, Master Programme, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jln. Ganesha 10, Bandung 40132,
Sutopo Sutopo
Geothermal Engineering, Master Programme, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jln. Ganesha 10, Bandung 40132,
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Keywords

Ulumbu
Heat Stored
Monte Carlo
Probabilistic Resources Assessment

How to Cite

Pratama, H. B., Kurniawan, I., & Sutopo, S. (2022). Probabilistic Resource Assessment of The Ulumbu Geothermal Field, East Nusa Tenggara, Indonesia. Indonesian Journal on Geoscience, 9(2), 183–193. https://doi.org/10.17014/ijog.9.2.183-193
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Abstract

DOI:10.17014/ijog.9.2.183-193

A resource assessment of the Ulumbu Geothermal Field, East Nusa Tenggara, Indonesia, is proposed here. The fundamental issue of reserve estimation is determining the optimum capacity to be installed (field size) that affects the decision-making in geothermal projects. The reservoir numerical model and heat stored method are the most appropriate tools for geothermal resource assessment. Therefore, the hybrid numerical simulation and heat stored methods, coupled with the probabilistic approach, are applied to Ulumbu. Based on the calibrated numerical model, the estimation of the reservoir is divided into the steam zone and liquid reservoir. The energy reserve of the Ulumbu is estimated by Monte Carlo simulation with the results P10-P50-P90 are 71 MWe, 95 MWe, and 127 MWe, respectively

https://doi.org/10.17014/ijog.9.2.183-193
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