ESTIMATION OF C02 STORAGE RESERVOIR CAPACITY USING 3D GEOLOGICAL MODELING IN ROA FIELD BINTUNI BASIN, WEST PAPUA

• Main Author: Maulana Chandra, Priandi
• Format: Theses
• Language: Indonesia
• Subjects: Geologi, hidrologi & meteorologi
• Online Access: https://digilib.itb.ac.id/gdl/view/77396
• Institution: Institut Teknologi Bandung

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).