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All Journal Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Ade Yogi
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Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Engineering Environmental Science

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Source Rock Characterization of the Eocene-Miocene, Central Deep, North East Java Basin Fauzan Iqbal Hidayat; Ade Yogi; Eriko Sabra; Taufik Ramli; Muhammad Firdaus; Hanif Mersil Saleh; Gadis Ghia Arviallyn; Andi Setyo Wibowo
Jurnal Geologi dan Sumberdaya Mineral Vol. 23 No. 3 (2022): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v23i3.697

Abstract

This study was conducted to obtain the characteristics of the source rock through organic geochemical analysis in Central Deep, NE Java Basin, in the field off the north coast of Madura. Three samples of Cassiopeia-1, Pollen-1, and Alpha-1 wells were analyzed using organic geochemical methods including Total Organic Carbon analysis, Maturity using vitrinite reflectance, Tmax, and Production Index data, and then analysis of the kerogen type, isoprenoid, sterane, and carbon isotope. Based on those data, an analysis was carried out to determine the origin of the material and the depositional environment. The rock samples in the three wells showed characteristics in TOC, maturity, kerogen type and source of organic material have a similarity. The source rock characteristics have a medium to a good category as source rock and tend to generate gas and a little oil from kerogen types II and III. This source rock is included in the category of immature to mature, deposited in delta until terrestrial depositional environment and contains sources terrestrial and marine organic material.Keywords: Madura, North East Java Basin, organic geochemical, source rock.
OPTIMIZATION OF MEASUREMENT SPEED FOR SPECTRAL GAMMA RAY AND CLAY MINERAL IDENTIFICATION irawan Y. Tribuana; Ade Yogi; Prabowo Prabowo; Andy S. Wibowo; Puteri Sudija; Yudhi Durahman
Scientific Contributions Oil and Gas Vol. 38 No. 3 (2015): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.38.3.244

Abstract

Gamma ray log is a logging tool to capture the radioactive level of a rock or formation measured in API units. This logging tool generally has a capability to differentiate between permeable and impermeable layers. Usually the impermeable layer tends to have higher radioactivity compared to the permeable one except for the feldspar bearing formation. In addition, another capability of this logging tool is to determine the kind of clay mineral, by using ratio data between Thorium and Potassium. This laboratory experiment used Spectral Gamma Ray (SGR) equipment at LEMIGAS Routine Core Laboratory. The quality of gamma ray log measurement is significantly affected by the speed of the conveyor belt. During the experiment, the measurement speed of 30 m/hour is the optimum speed to achieve good quality data and time efficiency with the data amount of 169 points/meter. The result of SGR measurement gives the reading on the content of Uranium, Thorium and Potassium. The Thorium and Potassium content are compared and plotted in Quirein graphic which was modified by Schlumberger in 1985. Using this crossplot, we can identify the presence of Chlorite, Montmorillonite, Kaolinite, Illite, mixed layer Feldspar, Mica, and Glauconite minerals. A case study conducted on Wells A1, A2, A3 and A4, indicated that the result of this crossplot were similar to the measurement using XRD.
Fasies Sedimen Laut dalam di Formasi Cinambo (Miosen Awal – Tengah): Pengamatan dari Singkapan di Sebagian Sungai Cilutung, Majalengka, Jawa Barat, Indonesia Muhammad Firdaus; Andri Perdana Putra; Ade Yogi; Ryan Akbar Fadhilah; Iwan Sukma Gumilar; Erwin Hariyanto Nugroho; Amir Hamzah
Lembaran Publikasi Minyak dan Gas Bumi Vol. 57 No. 1 (2023): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Formasi Cinambo adalah salah satu formasi di Sub-Cekungan Majalengka yang berpotensi memiliki prospektifitas hidrokarbon yang ditunjukkan dengan adanya potensi batuan induk pada sampel batuan di daerah penelitian. Studi-studi terdahulu hanya membahas masing-masing terkait fasies atau potensi kandungan material organic saja, sehingga kami melakukan studi ini untuk mengetahui fasies sedimentologi dan kandungan material organic serta hubungan antara fasies dan kandungan material organik di Sebagian Sungai Cilutung, Majalengka, Jawa Barat. Dari hasil kenampakan di Lapangan, Formasi Cinambo menunjukkan sedimen laut dalam pada bagian lantai samudera, dicirikan oleh endapan turbidit yang dominan dari urutan sekuen Bouma (Ta, Tb, Tc, Td, dan Te) dan endapan suspensi batulempung yang sangat tebal dan dominal. Asosiasi fasies di lapangan terbagi jadi 6 yaitu Dasar Channel, Pengisi Channel – Gosong Channel, Tanggul Channel dan Splay, Cabang-cabang Channel tanpa Tanggul dan Splay, Kipas cabang-cabang Channel, dan Serpih luat dalam. Hasil Analisis geokimia dilakukan pada empat sampel serpih menunjukkan kandungan Total Organic Content (TOC) berkisar antara 0.46-1.27 %, berpotensi menjadi batuan induk dengan kualitas buruk hingga baik. Nilai TOC yang cukup baik ditemukan di serpih di fasies kipas cabang Channel
Co-Authors Amir Hamzah Andi Setyo Wibowo Andri Perdana Putra Andy S. Wibowo Eriko Sabra Erwin Hariyanto Nugroho Fauzan Iqbal Hidayat Gadis Ghia Arviallyn Hanif Mersil Saleh irawan Y. Tribuana Iwan Sukma Gumilar Muhammad Firdaus Prabowo Prabowo Puteri Sudija Ryan Akbar Fadhilah Taufik Ramli Yudhi Durahman