Identifikasi Potensi Batuan Induk pada Formasi Santul di Sub-Cekungan Tarakan, Kalimantan Utara
DOI:
https://doi.org/10.26418/pf.v8i1.39637Abstract
Penelitian ini dilakukan pada sampel batuan di Formasi Santul dari lima sumur pengeboran yaitu sumur M-1, M-2, M-3, M-4, dan M-5. Identifikasi kuantitas dan kualitas, tipe dan kematangan material organik berdasarkan analisis nilai TOC, Rock Eval Pyrolisis (REP), Reflektansi Vitrinit (Ro%). Hasil penelitian menunjukkan bahwa Formasi Santul di lokasi penelitian memiliki kualitas cukup hingga istimewa (fair-excellent) sebagai batuan induk dengan nilai TOC 0.99 hingga 10.81%. Kerogen didominasi kerogen tipe III yang berpotensi menghasilkan hidrokarbon dalam bentuk gas dan kerogen tipe II/III yang berpotensi menghasilkan hidrokarbon dalam bentuk campuran antara minyak dan gas. Hasil penelitian juga menunjukkan bahwa tingkat kematangan batuan induk Formasi Santul yaitu belum mencapai tingkat matang hingga matang dengan nilai 0.27 hingga 0.71%.
Kata Kunci : Batuan Induk, Geokimia, Reflektansi Vitrinit, Rock Eval Pyrolysis, Total Organic Carbon
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Date: 24-05-2023
Prisma Fisika
Email: prismafisika@physics.untan.ac.id
