TRIGONOMETRIC APPROACH OF PSEUDO ELASTIC IMPEDANCE - LITHOLOGY AND SEISMIC ATTRIBUTE VP/VS FOR HYDROCARBON RESERVOIR CHARACTERIZATION IN THE TALANGAKAR FORMATION,
With the increasing demand for energy, the exploration of hydrocarbons must be continuously enhanced to meet energy needs. One approach to achieving this is by developing mature fields that are already in production. The "Imperial" field, located in the South Sumatra Basin, is a proven...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/84575 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | With the increasing demand for energy, the exploration of hydrocarbons must be
continuously enhanced to meet energy needs. One approach to achieving this is by
developing mature fields that are already in production. The "Imperial" field,
located in the South Sumatra Basin, is a proven producing field. The field's
characteristics from the Talangakar formation include interbedded coal and
sandstone. Due to these characteristics, an appropriate method is needed to
differentiate the two lithologies. This study shows that AI, Mu, and the Vp/Vs ratio
are sensitive parameters. Using these sensitive parameters, Sparse Spike Linear
Programming Inversion is calculated with the Extended Elastic Impedance method.
The results of this calculation will be correlated with the PEIL attribute. The
inversion results of the elastic parameters generally exhibit bias in the AI and Vp/Vs
ratio values, which are not dominant and show a linear data relationship obtained
from regression, while the petrophysical parameters have a nonlinear trend. To
address this issue, reservoir characterization is performed using the pseudo elastic
impedance lithology (PEIL) attribute. The relationship of this attribute will produce
a density volume that will be used for lateral hydrocarbon distribution analysis in
the target zone. The correlation results between the inversion calculation and the
attribute show a value of 0.9016 PEIL. The research results indicate that low AI,
Vp/Vs ratio, PEIL, and density values, along with relatively high Mu values, suggest
that the "Imperial" field in the Talangakar Formation (TAF) is a sandstone area
interbedded with porous coal and shows indications of being filled with
hydrocarbon fluid. |
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