PORE PRESSURE ANALYSIS AND PREDICTION IN GEMAH FIELD, JAMBI SUB-BASIN
Gemah Field is located in the Jambi Sub-Basin. Drilling data indicate the presence of overpressure in this field. This study was carried out to determine the pore pressure magnitude in the Gemah Field, as pore pressure is an important aspect that should be considered in drilling. The analysis...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/77656 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Gemah Field is located in the Jambi Sub-Basin. Drilling data indicate the presence
of overpressure in this field. This study was carried out to determine the pore
pressure magnitude in the Gemah Field, as pore pressure is an important aspect
that should be considered in drilling. The analysis in this study includes the
determination of the top overpressure and its generating mechanism, estimation of
pore pressure magnitude, and the relationship between the geological conditions
of the study area and the overpressure occurrence. The data used are from five
wells.
Pore pressure regime in the Gemah Field consist of hydrostatic and overpressure.
The top overpressure is at depths of 4750-6000 feet below sea level. Overpressure
is found in shale-dominated intervals of the Talang Akar Formation. The
overpressure in this field is due to loading and non-loading mechanism, with
overpressure magnitude ranging from 2000-3000 psi. |
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