The fractured basement reservoir is characterized by a very complex structure and it requires a special method to evaluate. BASROC is one of those. The software BASROC was developed by VSP in 1992, for application in reservoir evaluation and simulation for Bach Ho oil field. In order to increase the utility and accuracy in the determination of reservoir parameters, this software has been upgraded continuously. Version 3.0 is the latest version now used in evaluation and simulation of basement reservoirs in Bach Ho, Rong and other oil fields.
|Reservoir model – two porosities and two permeabilities:
|Pig.1: Pore Space Structure Fractured granite.
2 -Macro Fracture,
3- Micro Fracture, 4-Unchanged Rock.
|The important features in BASROC 3.0
BASROC is an advanced multi-mineral log analysis program. It computes the most probable formation mineralogy and total porosity, open porosity using a multi-log, least-squares inversion technique.
It is particularly valuable in areas of mixed lithologies, special minerals and two porosities systems.
Grade porosity by filtered method.
Calculate fracture porosity by looped technique.
Export the result in the tabular and bitmap files.
Any Microsoft Windows supported printing device.
Fig. 2 – The comparison of theoretically synthetic and practical curves
Fig. 3 – Results of BASROC processing for fractured Basement