RESERVOIR CHARACTERIZATION AND MODELING USING INVERSION SEISMIC AND SEQUENTIAL GAUSSIAN SIMULATION METHOD IN âIRAâ FIELD, ASRI BASIN, SOUTHEAST SUMATERA
The "IRA" field located in the Offshore Southeast Sumatra area is one of the development fields in the Asri Basin. The main formation that becomes the reservoir rock is Talang Akar formation with a total production of 23.03 MMBO. Reservoir characterization is needed to optimize the oil...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/69103 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The "IRA" field located in the Offshore Southeast Sumatra area is one of the development fields
in the Asri Basin. The main formation that becomes the reservoir rock is Talang Akar formation
with a total production of 23.03 MMBO. Reservoir characterization is needed to optimize the
oil production by using well data and seismic data. To characterize the reservoir, it is
necessary to have rock elastic parameters that are sensitive to changes in lithology and
reservoir rock properties. This sensitive parameter delineates into seismic data using seismic
inversion and multi-attribute seismic methods.
In this study, to optimize well data in the depth domain, velocity modeling was carried out by
integrating seismic velocity with check shot data so that the time-depth conversion process
could be more accurate. After obtaining the optimal velocity model, static modeling in the
depth domain can be carried out so that the data of wells that do not have a check shot can be
included in the analysis of properties such as porosity and volume of shale. The distribution of
reservoir rock properties is carried out using the sequential gaussian simulation method with
the second variable is the volume resulting from the seismic inversion. |
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