PENDUGAAN RESERVOIR DI DAERAH PANAS BUMI DANAU RANAU MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI WENNER-SCHLUMBERGER

Ramadhani, Melyanti (2019) PENDUGAAN RESERVOIR DI DAERAH PANAS BUMI DANAU RANAU MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI WENNER-SCHLUMBERGER. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Daerah Panas Bumi Danau Ranau merupakan salah satu daerah panas bumi yang ada di Indonesia. Manifestasi panas bumi yang nampak di permukaan semakin menguatkan bahwa terdapat sumber panas bumi di bawah permukaan. Untuk mengetahui hal tersebut digunakan metode geofisika yaitu metode geolistrik. Pengukuran dilakukan dengan metode mapping dan sounding, dimana metode sounding dilakukan pada 3 lintasan dengan total 9 titik. Sedangkan untuk metode mapping dilakukan pada 6 lintasan. Dengan menggunakan metode ini dapat diketahui distribusi nilai resistivitas dari suatu batuan atau lapisan penyusun permukaan bawah tanah. Nilai resistivitas yang didapatkan diinversi dengan menggunakan bantuan software Res2Dinv dan IPI2WIN. Hasil olah data menampilkan penampang yang menunjukkan nilai resistivitas dari setiap lapisan penyusun. Adapun susunan bawah permukaan daerah penelitian diantaranya yaitu lapisan pembawa air, tufa gunung api, konglomerat, breksi gunung api dan batuan lava. Lapisan tufa gunung api merupakan lapisan yang biasa disebut reservoir. Hal ini dikarenakan lapisan ini bersifat sangat porous, sehingga sangat mudah untuk menyimpan dan mengalirkan air.
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Geothermal Area Lake Ranau is one of geothermal areas in Indonesia. Geothermal manifestations that appear on the surface show that there are geothermal source on the subsurface. To find out about that, we must use one of geophysical method namely geolistric method. Measurements were made by mapping and sounding methods, where the sounding method was carried out on 3 tracks with a total of 9 points. While the mapping method is carried out on 6 tracks. By using this method, it can be seen the distribution of resistivity values of a rock or substrate that composing the layer. The resistivity values that we obtained were inverted using Res2Dinv and IPI2WIN. The results of data processing show a cross section that shows the resistivity value of each constituent layer. The subsurface arrangement of the research area includes water-bearing layers, volcanic tuffs, conglomerates, volcanic breccia and lava rocks. The volcano tuff is the layers that arrange reservoirs. This is because this layer is very porous, so it is very easy to store and drain a water.

Item Type:	Thesis (Other)
Subjects:	Q Science > QE Geology > QE601 Geology, Structural
Divisions:	Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Melyanti Ramadhani
Date Deposited:	20 Jul 2026 02:31
Last Modified:	20 Jul 2026 02:31
URI:	http://repository.its.ac.id/id/eprint/65069

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