Study of hydraulic flow units using static modeling in upper Surmeh formation (Arab) in one of the Oil Fields, Persian Gulf

Main purpose of this study is to determine the spatial distribution of the field’s petrophysical parameters, including porosity and permeability by determining and identifying the hydraulic flow units. By identifying hydraulic flow units as well as rock types and investigating the distribution of porosity and permeability variables, it is possible to classify areas of good quality and suitable reservoir. It is worth to mention that porosity and permeability relationships can be used to identify flow units for evaluation of reservoir quality. Therefore in the present study, after determining the Hydraulic Flow Units (HFU) by the probability diagram of the normal logarithm of Flow Zone Indicators (FZI), based on continuous variable of FZI, and using the results of six wells from the upper Surmeh formation in the subject oilfield, a 3D static model of reservoir is developed. During development of this model, Sequential Index Simulation (SIS) method is used. Under the developed model, the probable distribution of these parameters for each cell and distribution of these parameters in reservoir are calculated and the areas with high reservoir quality are determined. Therefore the results of this research not only can be used to determine the superior reservoir area in the field, but also can be applied for reservoir zoning in terms of reservoir quality / potential and or development of a dynamic model, and or similar activities.