STATIC RESERVOIR MODELLING AND HYDROCARBON VOLUME ESTIMATION IN BATURAJA FORMATION, BETA AREA, SOUTH SUMATRA BASIN
Beta Area is an area that has the potential to produce gas on the Baturaja Formation, South Sumatra Basin based on the result of tested data on exploration wells. Administratively, Beta Area is located in Ogan Komering Ulu Regency, South Sumatra Province. This area physiographically lies in the T...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/67088 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Beta Area is an area that has the potential to produce gas on the Baturaja Formation, South
Sumatra Basin based on the result of tested data on exploration wells. Administratively, Beta
Area is located in Ogan Komering Ulu Regency, South Sumatra Province. This area
physiographically lies in the Tertiary-aged of Sumatra back-arc basin. Geological studies
and reservoir modeling are focused at FS0-FS4 sequence interval on Baturaja Formation
comprise of limestone.
This study aims to comprehend the geological condition, determining reservoir static model,
and estimating hydrocarbon volume in the Beta Area. Data used in this study consist of
wireline logs, cutting description, biostratigraphy report, and three-dimensional seismic
data. Several methods used in this study comprise of well correlation using sequence
stratigraphy concept, petrophysical analysis, analysis of facies and depositional
environment, isopach determination, creating depth structure, three -dimensional structural
model, facies and petrophysical properties models, determination of fluids contact, and
hydrocarbon volume estimation.
The outcomes from all those methods show an overview of the geological condition and the
estimation of its hydrocarbon volume in the Beta Area. The results of the well analysis show
that the study area deposited in the transgressive phase comprises of wackestone limestone
and shale composing facies association as well as the depositional environment which is
restricted platform, open marine, platform sand shoals, and platform margin reef. The
prospect areas are divided into three areas and bounded by fault boundary. The volume
estimation (IGIP) result shows that the volume of gas in place from Prospect Area A is 6
BSCF, Prospect Area B is 50 BSCF, and Prospect Area C is 86 BSCF |
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