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All Journal IJOG : Indonesian Journal on Geoscience Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Lembaran Publikasi Minyak dan Gas Bumi
Yoga Andriana Sendjaja, Yoga Andriana
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Energy Engineering Environmental Science

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Depositional Environment and Source Rocks Potential of the Miocene Organic Rich Sediments, Balikpapan Formation, East Kutai Sub Basin, Kalimantan Permana, ST.,M.Sc., Asep Kurnia; Sendjaja, Yoga Andriana; Panggabean, Hermes; Fauzely, Lili
Jurnal Geologi dan Sumberdaya Mineral Vol 19, No 3 (2018): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.578 KB)

Abstract

The fluvial to deltaic sediments of the onshore petroleum prolific of the Mahakam Delta in the East Kutai Sub-basin constrain organic rich sediments particularly within the Balikpapan Formation. This formation has been recognized as a source rocks of the conventional oil and gas production in the Kutai Basin. However, the geochemical studies to understand the origin of organic matter and paleo-environmental condition of this formation are still limited. A 390 selected samples of organic rich sediments from the Balikpapan Formation were analyzed by using organic petrographic and geochemical analyses. These analyses were used to define the sedimentary organic matter and moreover the paleo-environment conditions during deposition and their implication to the source rocks and hydrocarbon potential. The organic rich shales and mudstones of this sediment have high total organic content (TOC) values in range of 0.05% – 15.63% and coals are ranging from 2.25% to 57.11%. They are and mainly dominated by vitrinite maceral, with minor liptinite and inertinite. The minerals mostly consist of clay minerals, with minor pyrite and oxide minerals (quartz and carbonates). Rock Eval Pyrolisis analysis results show low hydrogen index (HI) values (4 to 248.52mgHC/g TOC) and predominance of vitrinite maceral reveal prevalence of terrestrially derived type III organic matter and their potential to generate gas. The max temperature values which is ranging from 411 to 435°C and Ro ranges 0.7% - 0.64% implies a low to moderate thermal maturation levels for an active source rocks. The organic matter accumulation is mainly associated with black shales and coals in the delta plain environment, derived from terrigenous organic matter.Keyword: Depositional environment, source rocks, Balikpapan  Formation, Kutai Basin.
Biomarker Composition of Some Oil Seeps from West Sulawesi, Indonesia Sutadiwiria, Yarra; Hamdani, Ahmad Helman; Sendjaja, Yoga Andriana; Haryanto, Iyan; Yeftamikha, Yeftamikha
Indonesian Journal on Geoscience Vol 5, No 3 (2018)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (764.218 KB) | DOI: 10.17014/ijog.5.3.211-220

Abstract

DOI: 10.17014/ijog.5.3.211-220A suite of oil seep samples collected from the Lariang and Karama Basins, West Sulawesi, Indonesia, have been analyzed using GC and GCMS techniques. Their biomarker compositions have been used to reveal the likely source rock that produces oil. These oil seep samples contain a range in both the concentration of hydrocarbons present and certain level of biodegradation experienced. All sterane m/z 217 data display a familiar pattern of steranes with carbon numbers from 27 to 29 together with pregnane and homo-pregnanes, including rearranged steranes. Triterpane (m/z 191) data show a moderate content of tricyclic terpanes (Tri/C30H), medium to high ratio of norhopane/hopane (C29/C30), and medium to high abundant land plan marker such as resin bicadinanes(Bic/C30H) and oleananes (Ol/C30H). The presence of high abundant oleananes in these samples has been interpreted as the evidence for a marine influence during early diagenesis that may occur by marine or via re-deposition of peat organics in marine sediments. Hence, these results state that the organic matter facies for their source rock oil seep samples from the West Sulawesi region are detected as mixed between allochthonous macerals from typical terrestrial higher plants transported into the basin from distal swamps and soils and some marine organic matter.
Karakteristik dan Potensi Batuan Sumber Hidrokarbon dari Conto Permukaan di Daerah Pemalang, Jawa Tengah Praptisih, Praptisih; Sendjaja, Yoga Andriana; Isnaniawardani, Vijaya; Mursito, Anggoro Tri
Lembaran publikasi minyak dan gas bumi Vol 55, No 1 (2021)
Publisher : PPPTMGB "LEMIGAS"

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.55.1.572

Abstract

Penelitian yang dilakukan pada singkapan batulempung di daerah Pemalang, Jawa tengah bertujuan untuk mengetahui karakteristik dan potensi batuan sumber hidrokarbon. Metode yang digunakan adalah penelitian di lapangan dan laboratorium. Penelitian di lapangan meliputi pengamatan litologi dan pengambilan conto batulempung. Analisa di laboratorium terdiri dari analisa TOC dan pirolisis Rock Eval. Hasil analisa TOC terhadap terhadap 11 conto batulempung menunjukkan nilai TOC sebesar 0,59-1,86 %. Tmaks 410-502oC menunjukkan tingkat kematangan belum matang hingga paska matang. Nilai HI berkisar antara 1-115 mgHC/TOC. Potensi hidrokarbon di daerah penelitian menunjukkan kategori material organik rendah dengan kerogen yang termasuk type III. Kualitas batuan sumber berdasarkan nilai HI termasuk dalam kategori gas prone.
Co-Authors Ahmad Helman Hamdani, Ahmad Helman Anggoro Tri Mursito Fauzely, Lili Hermes Panggabean Isnaniawardani, Vijaya Iyan Haryanto, Iyan Permana, ST.,M.Sc., Asep Kurnia Praptisih Praptisih Sutadiwiria, Yarra Yeftamikha, Yeftamikha