SIMULASI NUMERIK SISTEM PANAS BUMI BITTUANG KABUPATEN TANATORAJA, SULAWESI SELATAN
Abstract
Simulasi numerik di daerah panas bumi Bittuang menggunakan program simulator TOUGH2 dengan Equation of State (EOS1), satu fasa, disusun berdasarkan konseptual model hasil survey geologi, geokimia, geofisika (3-G) dan pengeboran landaian suhu sumur BTG-1.Parameter yang digunakan antara lain permeabilitas, porositas, konduktivitas panas serta kapasitas panas batuan.
Susunan penyebaran litologi secara lateral dan vertikal berdasarkan grid blok serta tersusun menjadi beberapa lapisan mendekati model konseptual. Kondisi inisial dan batas kondisi diberikan berdasarkan data-data yang tersedia.
Hasil simulasi yang didapatkan setelah mengalami proses uji coba beberapa kali dengan merubah beberapa parameter simulasi dan hasil yang paling baik dikalibrasi dengan hasil pengukuran temperatur sumur pengeboran l andai an suhu BTG-1 serta kemunculan manifestasi permukaan. Mengingat keterbatasan data yang dimiliki, hasil simulasi ini
merupakan proses inisial (permulaan) simulasi untuk sistem panas bumi Bittuang dan masih harus dilakukan update berdasarkan data lanjutan.
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References
Anonim. 2009. Survei Terpadu Geologi, Geokimia dan Geofisika Daerah Panas Bumi Bittuang, Kabupaten Tanatoraja, Sulawesi Selatan. Pusat Sumber Daya Geologi, Badan Geologi.
Anonim. 2012. Survei Magnetotellurik (MT) Daerah Panas Bumi Bittuang, Kabupaten Tanatoraja, Sulawesi Selatan. Pusat Sumber Daya Geologi, Badan Geologi.
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Pruess, K., Oldenburg, C., Moridis, G. 1999. TOUGH2 User's Guide, Version 2.0. Lawrence Berkeley National Laboratory. Report LBNL 43134, Berkeley, CA, USA.
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