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All Journal Jurnal Ilmu Informasi Perpustakaan dan Kearsipan Journal of Geoscience, Engineering, Environment, and Technology Jurnal Papatung : Jurnal Ilmu Administrasi Publik, Pemerintahan dan Politik Jurnal Ilmiah Ilmu Administrasi Jurnal Kewarganegaraan Aksiologi : Jurnal Pendidikan dan Ilmu Sosial Jurnal Ilmiah Wahana Pendidikan Jurnal Manajemen dan Ilmu Administrasi Publik (JMIAP) Journal of Social And Economics Research Journal of Scientech Research and Development Journal of Artificial Intelligence and Digital Business JAGE Jurnal Abdimas Peradaban journal of social and economic research
Pri Utami
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Religion Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Physics Social Sciences Other

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Journal : Journal of Geoscience, Engineering, Environment, and Technology

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Modeling and Interpretation of Geothermal System Components Using the Gravity Method at the “X” Geothermal Ibrahim, Mochammad Malik; Utami, Pri; Raharjo, Imam Baru
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 2 (2024): JGEET Vol 09 No 02 : June (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.2.13032

Abstract

Geothermal field "X" is one of the geothermal fields located in North Sulawesi Province managed by PT Pertamina Geothermal Energy. This research aims to determine the presence of geothermal system components in the subsurface using the gravity method. Gravity method data processing is processed with observational and theoretical corrections to obtain a complete Bouguer anomaly. The complete Bouguer anomaly is separated into regional and residual anomaly using the upward continuation process. The results of modeling and interpretation of residual (shallow) gravity prove the existence of 3 (three) rock layers and their density values, Post Tondano Andesite Unit layer (2,4 g/cm3), Tondano Rhyolite Unit layer (2,5 g/cm3) and Pre Tondano Andesite Unit layer (2,7 g/cm3). The results of modeling and interpretation of regional (deep) gravity evidence the existence of 3 (three) rock layers along with the rock density value, Tondano Rhyolite Unit layer (2,5 g/cm3), Pre Tondano Andesite Unit layer (2,7 g/cm3) and diorite intrusion rock layer (2,9 g/cm3). The geothermal system in the research area is composed of Post Tondano Andesite Unit as overburden rock, Tondano Rhyolite Unit as caprock, Pre Tondano Andesite Unit as reservoir rock and Diorite intrusion rock as heat source.
Co-Authors Agus Suherman Ahmad Ahmad Asmawi, Muhammad Rosul Atmaja, Randy Wijaya Bakhtaruddin Nst. Defasya, Tyrenz Maura Reiza Diah Fitri Kamila Firdiyani, Fitria Gayatri Indah Marliyani Imam Baru Raharjo Meyriyanih, Savira Fajar Muhammad Rosul Asmawi Muharromah, Isnadya Muhtadi, Tb. Yudi Nafiah, Idhotun Novitri, Bella Suci Peter Pratistha Utama Puji Hastuti Putri Ramadhani, Putri Putri, Walla Astianty Rianto, Joko Rizal Fatli Maulana RR. Ella Evrita Hestiandari Salsabilla, Natashia Samodra, Saptono Budi Sujana, Nanan Viani, Okta Wiyuda, Muhammad Aji Yusuf, Yusmedi