ESTIMATION OF C02 STORAGE RESERVOIR CAPACITY USING 3D GEOLOGICAL MODELING IN ROA FIELD BINTUNI BASIN, WEST PAPUA
Storing CO2 into subsurface geological formations is one of the mitigation approaches that can reduce the impact of greenhouse emissions. Although there are still many factors that need to be considered, such as the diversity of subsurface geological conditions that have many uncertainties, th...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/77396 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Storing CO2 into subsurface geological formations is one of the mitigation
approaches that can reduce the impact of greenhouse emissions. Although there
are still many factors that need to be considered, such as the diversity of subsurface
geological conditions that have many uncertainties, this technology is currently the
most promising.
The Upper Roabiba Formation Reservoir is a candidate that can act as a geological
storage reservoir in the Bintuni Basin. This has been proven to be carried out on
Vorwata and Ubadari geological structures in the Tangguh Field using the CCSEGR mechanism. This formation is at a depth of + 11000 ft (MD) in the Late
Cretaceous age with sandstone lithology in the shoreface environment. The
Kembelangan Bawah Formation, which was deposited aligned, has a mudstone
lithology with intercalated limestone from the Ayot Formation as a regional cap
rock that can withstand gas migration to the surface.
The study conducted at the ROA Field aims to create a three-dimensional
geological model to increase CO2 storage capacity in the Tangguh Field. The
structural model of the Upper Roabiba Formation is based on the interpretation of
three-dimensional seismic data. Wireline log data was evaluated for petrophysical
modeling while core rock data and well test results were used as calibration. Static
geological modeling will obtain pore volume with values 91x106 m
3
as a framework
for filling CO2. The results of volumetric calculations as a CO2 storage reservoir
in the ROA Field are 35.36 Mt (P50). |
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