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Berita Sedimentologi
Published by Forum Sedimentologiwan Indonesia
ISSN : 08539413     EISSN : 2807274X     DOI : https://doi.org/10.51835/bsed
Core Subject : Science,
Earth & Planetary Sciences
BERITA SEDIMENTOLOGI aims to disseminate knowledge on the field of sedimentary geology to its readers. The journal welcomes contributions in the form of original research articles, review articles, short communications and discussions and replies. Occasionally, Berita Sedimentologi also includes field trip reports and book reviews, which are published only after going through peer-review processes. The main geographical areas of interest are Indonesia and SE Asia, however contribution from the rest of the world is also welcome. Berita Sedimentologi covers broad topics within sedimentary geology, particularly on depositional processes and their records in the rocks, petrology, sedimentology and stratigraphy of both siliciclastic and carbonate rocks; sequence stratigraphy, paleontology, biostratigraphy and sedimentary geochemistry. The journal also accepts articles on interdisciplinary research in sedimentary basin analysis, including large-scale basin geodynamics processes, mechanism of sedimentary basin formation, earth surface processes, sediment routing systems, petroleum geoscience and applied sedimentary geology analysis for mining and engineering geology.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi
Articles 3 Documents
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Search results for , issue "Vol 37, No 1 (2017)" : 3 Documents clear
Paleozoic – Mesozoic and Eocene Outcrops in the North Sumatra Basin and their Implication to New Exploration Play Concept Fatrial Bahesti
Berita Sedimentologi Vol 37, No 1 (2017)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1621.35 KB) | DOI: 10.51835/bsed.2017.37.1.93

Abstract

Paleozoic – Mesozoic and Eocene hydrocarbon plays in the North Sumatra Basin are still under-explored although they have been recognized for many years. The Paleozoic – Mesozoic play consists of Peusangan Group (Permian – Triassic) and Woyla Group (Jurassic – Cretaceous), which are overlain by Eocene – Early Oligocene Tampur carbonate/dolomite and onlapped by lacustrine Oligocene Bampo/Bruksah sediments. The Eocene play is represented by the Tampur Formation, which is a widespread carbonate/dolomite platform covering pre-rift sediments in the basin. A new mature source rock layer and highly permeable secondary porosity were observed in the Eocene Tampur carbonate outcrops. This finding suggests a possible new petroleum system involving the Eocene Tampur Formation as both source and reservoir.Identifying a new play concept and petroleum system in the Paleozoic – Mesozoic and Eocene sediments of the North Sumatra Basin will have important implications for future exploration, because it may lead to discovering potentially large hydrocarbon accumulation within naturally-fractured and/or karst reservoirs. Paleozoic – Mesozoic and Eocene petroleum systems in the basin at the moment are a subject of an ongoing study incorporating outcrops, core and seismic data.
The Paleogene of East Borneo and its Facies Distribution Herman Darman
Berita Sedimentologi Vol 37, No 1 (2017)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1413.999 KB) | DOI: 10.51835/bsed.2017.37.1.94

Abstract

Paleogene age rocks are exposed over about 40% of Borneo island, mainly in the central or core part. The geologic map shows that more than half of those Paleogene exposures are grouped as a melange unit and the rest are a mix of sediments and meta-sediments. The majority of the melange unit is exposed in Malaysian Sabah and Sarawak. The Paleogene sediments are exposed more in the Indonesian (Kalimantan) side.Within the sedimentary basins around Borneo, the Paleogene interval lies buried deep and is poorly understood. Seismic images covering the Paleogene interval are poor and the number of Paleogene well penetrations is limited. Most well penetrations stopped within the Neogene interval only, where significant hydrocarbon accumulations have been found.Several authors have provided a regional overview of the basins in East Borneo, namely: Barito, Kutei and Tarakan (e.g. Satyana et al., 1999; Darman and Sidi (eds.) 2000 and Netherwood, 2000). Recently the Paleogene in East Kalimantan became a petroleum exploration target (Saller and Vijaya, 2002; Satyana and Biantoro, 1996 and Guritno and Chambers, 1999), unfortunately no significant accumulations have yet been found.This short article summarizes the distribution of Paleogene rocks in the east of Borneo Island based on recent exploration data. A series of proposed paleogeographic maps for the Eocene and Oligocene sections are prepared based on these recent data and understanding. These maps are aimed to facilitate discussions and set up a starting point for further work in the future.
A Review of Regional Geology of the North Sumatra Basin and Its Paleogene Petroleum System Ricky A. Tampubolon; Tsania Ozza; M. Tajul Arifin; A. Syauqi Hidayatillah; Aviandito Prasetio; Terry Furqan
Berita Sedimentologi Vol 37, No 1 (2017)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3070.928 KB) | DOI: 10.51835/bsed.2017.37.1.95

Abstract

The North Sumatra Basin (NSB) is located on the western part of Sundaland and covers approximately 60,000 km2 of onshore and offshore regions. With over 100 years of production, North Sumatra Basin is one of Indonesia’s most prolific sedimentary basins. As stated by Meckel (2012), 25 trillion cubic feet (TCF) of discovered gas reserves (equal to 4.5 billion barrels of oil equivalent, BBOE) and approximately 1.5 BBOE of oil and condensate reserves confirmed this basin as the third largest hydrocarbon-producing basin in Indonesia, after Central Sumatra and Kutei Basins, respectively.The first hydrocarbon discovery was Telaga Said Field in 1885. Since then, remarkable findings (e.g. Rantau, Arun, NSO A, Lhok Sukon A, etc) contributed to the considerable amount of oil and gas reserves. From 1985 onwards, drilling activity in the North Sumatra Basin was stagnant due to volatile geopolitical and geological condition in Aceh. A variety of underexplored plays still remain in the basin, especially from Paleogene and pre-Tertiary age.

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