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Journal : Jurnal Geocelebes

Source Rock Evaluation in the "Idea" Field, Bintuni Basin, West Papua: A Geochemical Approach Ananda, Dea; Jamaluddin, Jamaluddin; Utomo, Warto; Wiyono, Joko; Ulfah, Baiq Maulinda; Amiruddin, Amiruddin; Manik, Nijusiho; Suprayitno, Abdi
JURNAL GEOCELEBES Vol. 9 No. 1: April 2025
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/geocelebes.v9i1.43566

Abstract

The Bintuni Basin is one of the largest hydrocarbon-bearing basins in Eastern Indonesia, although only a limited number of oil and gas fields are currently. Consequently, further investigation into its petroleum system, particularly the potential of its source rocks. In hydrocarbon exploration, characterizing source rock is critical to evaluating the presence of organic-rich strata capable of generating hydrocarbons. Geochemical analysis is a widely used method for assessing source rock potential, utilizing total organic carbon (TOC), rock-eval pyrolysis, and vitrinite reflectance data. In this study, geochemical data were obtained from one well and two outcrop samples to evaluate the quantity, quality, and thermal maturity of organic matter. The geochemical assessment of rock samples from four stratigraphic formations indicates that the Permian Ainim Formation exhibits the highest source rock potential. TOC values range from 1% to 80% with hydrogen index (HI) values range between 13 and 431 mg HC/g TOC classifying the formation as a good to excellent potential. The dominant organic matter consists of kerogen type II/III suggesting the potential for both oil and gas generation. Thermal maturity analysis indicates that the Ainim formation has reached the oil and gas generation window at depths of 8,075–8,420 feet. These findings demonstrate that the Ainim Formation represents a significant source rock within the Bintuni Basin, contributing valuable insights into the region's petroleum system and hydrocarbon prospectivity.
Co-Authors -, Sendagia Adyva, Muhammad Arya Agung Prayudha Hidayat Al Falif, Rifqoh Alfajriey, Rayhand Alfi Rahmi, Alfi Ali, RM Farhan Alifi, Auryel Arkan Amiruddin Amiruddin Andika Prasetya Nugraha Aprilia Putri, Cindy Aprillia, Refi Ardila, Vira Arien, Wilasari Asih Puji Utami Asti, Astirima Rima Atira, Fatin Farah Aulia, Novi Berkhaty, Ayang Putri Bitticaca, Albert Benaya Tomatoto Bustari Hasan Dian Iriani Dwi Eka Paksi, Kartika Ela Nuryani, Ela Falus, Candri Firosalia Kristin Fitri, Maghfiroti Fitria, Lailani Fitriani, Reza Hasanah, Rahmatun Nurul Herlianto, Muhammad Zidane Hermanto, Koko Ishara, Zahrani Athaya Jamaluddin Jamaluddin Jumaida, Siti Aisyah Jussac Maulana Masjhoer Kurnia Amalia, Dwita Leonardo, Catherine Elizabeth Maftukhah, Nur Afni Mahelda, Selvia Manik, Nijusiho Mardianti, Ririn Maulana, Fikri Fadhil Maulani, Iffah Mawan, Nirmawan Mazaya, Amalia Febryane Adhani Mensa , Dolfi Firdaus Muhammad Ridha Muhammad Ridwan Muhyani, Muhyani Nalanaya, Nalanaya Neko, Jovan Engelbert Nila Sari, Vivi Ningsih, Nur Fitria Nurfadila Nurfadila, Nurfadila Nurita Andriani Perdana, Anugrah Bagus Permata, Dinda Pidekso Adi Pratiwi, Oktrisa Puji Muniarty Purnama Putri, Aguilira Purwanti, Agnes Fia Bayu Putri Handayani putri, amanda Putri, Naila Amalia Putri, Stevani Rahma, Ade Nabilla Yushifa Ramadhan, Tengku Rahmat Rezeki, Rinanda Sri Rianti, Fitrah Ridwan Siskandar Rinanda, Khairunnisa Yulia Riski, Bagus S, Herlisa Sabarrudin, Sabarrudin Safriyana Salma Taqwa Sari, Vivi Nila Savanah, Khadijah Meutia Sesar Husen Santosa Setiawan, Adil Shafira Shafira, Shafira Sidik, Fawwaz Afifah Siti Aisyah Sofie Nornalita Dewi Suhandi, Tjetjep Sujarwo, Makmur Suprayitno, Abdi Syahputra, Firman Syifa Pohan, Syainda Dewi Timah, Fatimah Ulfah, Baiq Maulinda Vairana, Aiska Warto - Wiyono, Joko Wulandari, Asputri Wulandari, Febri Yustiani, Maulida Zahran, Fadhil Rizqi Az Zein, Fauzan Fadilah Zhuvaradifa, Vira Zulaikha, Rana