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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
 1 
Search results for , issue "Vol 40, No 1 (2018)" : 3 Documents clear
Middle Miocene Depositional Environment Shift in the Tarakan Basin: Some Perspectives from the Onshore Simenggaris Area Isnianto Saputra; Tulus Wibisono; Avesta Y. Prasetya
Berita Sedimentologi Vol 40, No 1 (2018)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3410.437 KB) | DOI: 10.51835/bsed.2018.40.1.83

Abstract

This paper aims to share ideas on the stratigraphic evolution of the Tarakan Basin based on data from the Simenggaris area, onshore NE Kalimantan. Various data sets were incorporated in order to get a robust and comprehensive interpretation, including well logs, cores, and paleontology and petrography analyses. Post-stack time migration 2D seismic data were utilized to generate isopach maps, which were then used as the framework for paleogeographic models.We concluded that the stratigraphic succession in the onshore Tarakan Basin consists of two major depositional environments, with the shift occurring during Middle Miocene. The most significant marker of depositional system transition was observed in the paleontology and lithofacies association. In the Eocene-Early Miocene, the fossils were dominated by foraminifera and by low energy sediments such as shale and limestone with some tuff were also present, typical of a marine depositional system. Meanwhile, in the upper Middle Miocene to Pliocene, the fossils were dominated by pollen species and by siliciclastic sediments like sandstone, shale and coal, which were interpreted as a deltaic depositional environment.
Hydrocarbon Retention in Clastic Reservoirs of NW Borneo - Examples of Hydrocarbon Trap, Reservoir, Seal and Implications on Hydrocarbon Column Length Franz L. Kessler; John Jong
Berita Sedimentologi Vol 40, No 1 (2018)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (12839.973 KB) | DOI: 10.51835/bsed.2018.40.1.84

Abstract

Several siliciclastic fault-trap settings of the NW Borneo margin, from the West Baram Delta covering offshore Sarawak and Brunei to offshore NW Sabah, are compared with each other to assess the intricate relationship between hydrocarbon retention, seal capacity and reservoir parameters. Hydrocarbon column length is found to be a derivative of several parameters potentially affecting the integrity of a hydrocarbon trap. The presence of an effective and laterally continuous top seal is perhaps the most important success parameter; though relatively thin top seal can be surprisingly efficient. Seal capacity is featured by parameters such as mineralogy, grain size, contiguity, diagenesis and lateral continuity. Contiguity of hydrocarbon reservoirs is also important as discontinuous reservoir bodies commonly lead to very short and variable columns. The overall sand-to-shale ratio governs to some extent clay gouging capacity, with hydrocarbon columns tending to be longer in overall clay-prone environments, such as those found in outer shelf and deepwater turbidite environments. In these depositional settings, P50 columns are in the order of 250 m because sand-to-clay juxtaposition is more likely in fault-controlled traps. A better fault seal is often realized due to good shale gouge. However, hydrocarbon columns tend to be short (P50 of around 30 m) in sand rich shallow marine to deltaic settings given the discontinuity of reservoirs, leaky top seal, abundant yet discontinuous reservoir sand bodies and poor fault sealing capability. It is also observed that there are patterns of parameters such as sealing, reservoir, pressure and drive that have been identified, and combinations that appear viable (probabilistic success patterns) and non-viable for hydrocarbon retention (probabilistic failure patterns). The authors thus suggest to develop plausible patterns/scenarios and apply probabilistic simulations to each of the various combinations to assess the likely outcomes for column length predictions.
Geological Features Observations in Eastern Indonesia Based on Selected P3GL Seismic Data: A Report from FOSI-P3GL Seminar, Cirebon, January 31, 2018 Herman Darman; Ricky Andrian Tampubolon; Mellinda Arisandy
Berita Sedimentologi Vol 40, No 1 (2018)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3410.437 KB) | DOI: 10.51835/bsed.2018.40.1.82

Abstract

On January 31st, 2018, FOSI (Indonesian Sedimentologists Forum) organized a one day seminar in Cirebon (West Java), hosted by the Marine Geological Institute of Indonesia (or P3GL: Pusat Penelitian dan Pengembangan Geologi Kelautan). P3GL is a government institution which operates research vessels called Geomarin III. Their surveys typically include seismic acquisition, magnetic data acquisition and seafloor sediment sampling in Indonesian water. The seminar was aimed to provide an overview of their data to the geoscience community, especially those in the petroleum industry as the data may help petroleum exploration activities in Eastern Indonesia. This article focuses on selected seismic data which were presented during the seminar.

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