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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 Abduh, Haziki Abdul Aziz Abdullah, Muhammad Dinal Abdur Rahim, Abdur Achmad Buchori Achmad Nuruddin Safriandono Adela Salsabila Adiwilaga, Mochamad Hisam Akhmad Arif Musadad Alam, Muhammad Bagus Sekar Almuqtadir, Thariq Amiruddin Amiruddin Ananda Dyta Marlina Setiawan Ananda, Dea Anwar Nababan, Siharta Leman Arief Rahman Asmiran, Atika Andrian Assidiqi, Muadz Budhijana, R Bambang De Rosal Ignatius Moses Setiadi Dian Kristiawan Nugroho Djono Djono Dody Darly Ediono, Suryo Erna Sulistyorini Etika Kartikadarma Fauziah, Nike Mutiara Fikri, Muhamad Mufid Al Ganda Febri Kurniawan Gomiasti, Fita Sheila Haris Firmansyah Harto Juwono, Harto Hastuti, Tiwuk Kusuma Hermanu Joebagio Ika Rahmatika Chalimi Indarti, Adrian Jamaluddin Jamaluddin Jamin Safi Jutono Gondohanindijo, Jutono Kaswoto, Junet Khoirudin, Achmad Didik Khumaini, Sabik kusrini, Desi Layinah, Ayuni Leo Agung S Mamdukh Budiman Manik, Nijusiho Muhammad Lutfi Muslikh, Ahmad Rofiqul Nassa, Azzka Farikatun Ngatmini Ngatmini Nurlaila, Lala Ojugo, Arnold Adimabua Panca Kusuma, Bangbang Putri, Supanca Ade Qomar, Akhlis Syamsal Rahayu, Ratih Rahman Latif Alfian, Rahman Latif Rindha Widyaningsih Saputro, Muhammad Handri Aris Sariyatun Sariyatun Setiasih, Insiwi Febriary Sholeh, Kabib Sofyan Hadi Sudarmanto, Eko Sudarto Sudarto Sugara, Badra Suprayitno, Abdi Supriyono Supriyono Sutimin, Leo Agung Syaeful Rohman, Pupung Syahputra, Guntur Adham Syahroni Wahyu Iriananda, Syahroni Wahyu Titis Srimuda Pitana, Titis Srimuda Triana Rejekiningsih dkk Triyanto, Ade Try Adhi Bangsawan Tubagus Ilham Nugaraha Ulfah, Baiq Maulinda Vera Firdaus Wahyono, Zubaidi Wahyu, Itama Citra Dewi Kurnia Wardojo, Waskito Widi Wiyono, Joko Yulianti, Umi