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Dikdik Risdianto
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Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Journal : Buletin Sumber Daya Geologi

 1 
SISTEM PANAS BUMI TEMPERATUR RENDAH-SEDANG PADA CEKUNGAN KUTAI DAN REKOMENDASI PEMANFAATANNYA: LOW-MEDIUM GEOTHERMAL SYSTEM IN KUTAI BASIN AND ITS UTILIZATION Andri Eko Ari Wibowo; Mochamad Nur Hadi; Dikdik Risdianto
Buletin Sumber Daya Geologi Vol. 16 No. 2 (2021): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v16i2.311

Abstract

Geothermal development in Indonesia still dominated in volcanic geothermal system which is used as indirect use utilization (electricity), whereas about 70% of 357 geothermal location in Indonesian associate with non-volcanic geothermal system. Lack of subsurface information such as well data and reservoir temperature as well as low economic value that cause geothermal utilization in non-volcanic systems are less develop. Therefore, the purpose of this research is to provide the information of geothermal fluid characteristic such as type, origin, and fluid temperature in Kalimantan, especially in East Kutai Basin and also the recommendation of its utilization. There are five hot spring manifestations with a temperature of 42 to 55°C, neutral pH, bicarbonate type, and located in the immature water zone. This fluid characteristics correlate with the lithology of the area which is dominated by sedimentary rocks. The results of the O18 and D isotopes indicate that the source of the geothermal fluid comes from meteoric water. Meteoric water flows to subsurface and heated by hot rock from geopressured process, which then forms reservoir fluid. This old hydrothermal system has reservoir temperature is about 70 to 170oC with the formation of its geothermal system is affected by the sedimentary environment. The geothermal system in the Kutai Basin has a reservoir with medium-low temperatures, therefore its utilization is more suitable for direct utilization. Recommendation of geothermal direct use such as aquaculture, agro industry, tourism, and balneoteraphy can be applied on all geothermal system in Kutai Basin. Santan Tengah, Samboja and Tamapole-Dondang are possible for balneoteraphy to heal bone-ache due to high bicarbonate concentration (>500 ppm). There also an opportunity to develop indirect use for electricity by using binary cycle technology in Tamapole-Dondang (170° C) and Samboja (150° C).
Sistem Panas Bumi Dan Model Daerah Panas Bumi Gunung Ungaran, Jawa Tengah Konseptual Yuanno Rezky; Ahmad Zarkasyi; Dikdik Risdianto
Buletin Sumber Daya Geologi Vol. 7 No. 3 (2012): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5348.995 KB) | DOI: 10.47599/bsdg.v7i3.110

Abstract

Penyelidikan dan penelitian geosain di daerah panas bumi Gunung Ungaran telah banyak dilakukan namun belum menghasilkan suatu model konseptual terpadu. Hasil kompilasi data penelitian terdahulu menunjukkan tiga kelompok daerah panas bumi di sekitar Ungaran yaitu Gedongsongo, Nglimut dan Kendalisodo dengan manifestasi berupa mata air panas, fumarol, tanah panas, dan batuan ubahan. Model konseptual panas bumi Gunung Ungaran menggambarkan geometri sistem panas bumi yang mencakup batuan penudung, reservoir, batuan dasar, sumber panas, serta isotermal dari kompilasi seluruh data yang ada.
A NEW FRAMEWORK FOR CLASSIFICATION AND QUANTIFICATION OF GEOTHERMAL DIRECT USE RESOURCES AND RESERVES IN INDONESIA: KERANGKA KERJA BARU UNTUK KLASIFIKASI DAN KUANTIFIKASI SUMBER DAYA DAN CADANGAN PEMANFAATAN LANGSUNG PANAS BUMI DI INDONESIA Husin Setia Nugraha; Husin; Rina Wahyuningsih; Dudi Hermawan; Dikdik Risdianto
Buletin Sumber Daya Geologi Vol 20 No 2 (2025): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v20i2.447

Abstract

Geothermal direct use (GDU) in Indonesia holds significant potential for supporting energy security and local economic development, yet its growth has been hindered by the absence of technical standards for potential assessment. In contrast to the well-established indirect use for electricity generation, officially recorded GDU potential remains minimal. This study aims to establish and apply a standardized framework for the classification and quantification of GDU potential and utilization in Indonesia. The developed methodology introduces a potential classification system based on two primary criteria: the quality of fluid data/information and the results of a reserve feasibility study. The potential is categorized into two main classes: Resources (Indicated, Measured) and Reserves (Probable, Proven). Quantification formulas for potential (in MWt) and utilization (installed capacity, capacity factor, annual utilization, and capacity-to-reserve ratio) are also formulated. The initial implementation of this methodology reveals that Indonesia possesses a GDU potential of at least 230 MWt from 201 inventoried prospects, which constitutes approximately 56% of all identified prospects. Of this amount, approximately 8.1 MWt has been successfully classified as Proven Reserves. This standardized framework is expected to serve as a credible national reference for resource inventory, development planning, and attracting investment in the geothermal direct use sector.
Co-Authors Ahmad Zarkasyi Andri Eko Ari Wibowo Dudi Hermawan Eddy Hartantyo Husin Husin Setia Nugraha Mochamad Nukman Mochamad Nur Hadi RIna Wahyuningsih Yuanno Rezky Yustiani Frastika