#TITLE_ALTERNATIVE#
Dahlia field is located in Central Sumatra Basin and it produces hydrocarbon. Up until May 2011, this field hasn't been fully developed. This is the reason why formation evaluation and depositional environment analysis must be done on these fields, which are to get the measurements of the quali...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/13185 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Dahlia field is located in Central Sumatra Basin and it produces hydrocarbon. Up until May 2011, this field hasn't been fully developed. This is the reason why formation evaluation and depositional environment analysis must be done on these fields, which are to get the measurements of the quality, geometry, reservoir distribution, and the Current Oil in Place (COIP) hence the overview and further development on this field could be executed. This study consist to do depositional environment analysis to the main reservoir of Dahlia field, Bangko “B” formation, based on coring data and the log gamma ray patterns.Then to do petrophysical analysis based on the log gamma ray, routine core data, log LLD and LLS, and log RHOB. After that, we can make the isopach map of Dahlia field, which are gross sand, net effective sand, and net pay in order to get reservoir’s distribution, and the last one is calculate the Original Oil in Place (OOIP) reserves. From this value, the amount of oil reserves in the field could be known. If the early reserves (OOIP) and the number of production data are known, the Current Oil in Place reserves could be calculated. Based on coring data from DHL-12 and DHL-16 wells, the main reservoir in Dahlia field consists of four different facies, which are Bioturbated-Coarse Sandstones, Bioturbated- Medium Sandstones, Bioturbated-Fine Sandstones, and Cross- aminated-Fine Sandstones. From these four facies, it is interpreted that the reservoir of Bangko “B” formation is deposited on estuarine environments with estuarine chanel sub-environments. There are also blocky log patterns on this reservoir which indicate estuarine channel depositional environment, being an ideal environments for a reservoir to be deposited. Based on petrophysical analysis, the amount of oil reserves ranges between 14.580.459-15.733.743 Barrels. |
|---|