Rock Typing: Reservoir Permeability Calculation Using Discrete Rock Typing Methods (DRT): Case Study from the Algerian B-H Oil Field Reservoir
Permeability is the ability of a saturated rock to let the fluid flow through its pores. Fluid flow circulation within the porous medium depends on the solid type and arrangement. It depends on diverse characteristics with a focus on mineralogical type and composition of the rock. Discrepancy on the petrophysical characteristics and essentially permeability and heterogeneity are associated to these listed factors. Accordingly, fluid flow is associated to solid–fluid and fluid–fluid contact by the involvement of properties such as wettability, contact angle and capillary pressure of fluid properties as well as the rock type, which together represent factors in charge, partially or totally, of the reservoir quality consideration. Thus, with the characterization of these property requirements and impact on fluid dynamics, a need of an intensive inquiry, aimed to enhance the possible physical phenomena and chemical contribution is vital. For the case study, our investigation is actually based on the determination of reservoir rock types using Discrete Rock Typing method. Application of the DRT method has been conducted towards the Ordovician in B-H Basin (Algeria). Outcomes have revealed the presence of six main reservoir rock types.