WELLBORE STABILITY ANALYSIS USING INTEGRATED GEOMECHANICAL NODELING IN FIELS, MUSI HIGH AREA, SOUTH SUMATRA BASIN
Field S is located in the Musi High area, part of the South Sumatra Basin, and exhibits abnormal pressure conditions, specifically overpressure. This study analyzes data from 17 wells to address drilling problems related to wellbore stability, such as stuck pipes and lost circulation. The dataset...
Saved in:
| Main Author: | |
|---|---|
| Format: | Theses |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/87084 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Field S is located in the Musi High area, part of the South Sumatra Basin,
and exhibits abnormal pressure conditions, specifically overpressure. This
study analyzes data from 17 wells to address drilling problems related to
wellbore stability, such as stuck pipes and lost circulation. The dataset
includes well reports, wireline logs, rock mechanics data, and threedimensional
seismik data, used to evaluate pore pressure, in situ stresses,
rock mechanics parameters, and safe mud weight values, as well as to
develop one-dimensional and three-dimensional geomechanical models.
The results show that wellbore instability in the study area is primarily
influenced by geological conditions, particularly the penetrated lithology
and the drilling mud design. Clay lithology contributes to swelling issues
that can cause wellbore collapse. Excessive mud weight relative to pore
pressure can result in lost circulation and stuck pipes. Based on these
findings, drilling design recommendations for new wells have been
proposed, including casing design and recommended mud weights ranging
from 1.03 to 1.41 SG. |
|---|