#TITLE_ALTERNATIVE#
<p align="justify">Naga field is located in Bunyu Island, North Borneo. Pliocene interval is one of many interval that actively produce hydrocarbon until now on Naga Field. There is still lack understanding of sequence stratigraphy and reservoir distribution analysis from Pliocene in...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/27728 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align="justify">Naga field is located in Bunyu Island, North Borneo. Pliocene interval is one of many interval that actively produce hydrocarbon until now on Naga Field. There is still lack understanding of sequence stratigraphy and reservoir distribution analysis from Pliocene interval on Naga field become the background for this study. Data that used for this study are well log, seismic, biostratigraphy and core. <br />
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Lithology and biostratigraphy analysis shows vertical changes into more landward environment that characterized by increasing coal volume and also changing of biostratigraphic zone from Haplophragmoides sp. dan Trochamina sp. Zone that deposited on lower – upper delta plain changes into Barren I Zone that deposited on fluvial – upper delta plain. <br />
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This study shows that Pliocene interval on Naga field can be devided into five sequences. In general sequence boundary on Sequnce 1 – 3 characterized by drastic facies changes from lower delta plain into marsh. Meanwhile, sequene boundary on Sequence 4 – 5 are characterized by drastic facies changes from tidal sand flat into marsh followed by fluvial channel. <br />
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In this study there are two reservoir that will be modelled, which is UT-6 dan LT-3. Reservoir UT-6 is located in the upper part of Sequence 5 that consist of tidal flat and fluvial channel in general. Reservoir modelling from UT-6 shows the various depositional facies from marsh, tidal – fluvial complex. Reservoir LT-3 is located in Sequence 3 that consist of mouth bar, tidal flat and marsh facies. Reservoir modelling from LT-3 shows various depositional facies from lower delta plain (distributary mouth bar) to upper delta plain (marsh, tidal – fluvial channel and distributary mouth bar). Abrupt facies changes on Naga field caused the reservoir are not well distributed or isolated channel.<p align="justify"> |
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