The Effect of Vug Density on Fluid Flow

Fractured vuggy reservoirs have long been observed. A thorough understanding of the variability and fluid flow in fractured vuggy carbonates is lacking. Classical theories of fluid flow are not applicable for highly heterogeneous carbonates. Therefore, it is necessary to conduct research on this type of carbonate which is found in many petroleum reservoirs. Single-phase flow in fractured vuggy media is studied by finite element method. The purpose of this study is to obtain phenomenological data (streamlines, velocity and pressure) during flow in a fractured vuggy media to better understand the effect of vug density on flow. Numerical simulation on fractured vuggy model with different vug density are suggested that gravitational impact on flow is more significant in vugs; in identical horizontal plane, velocity in vug is less than velocity in fracture; pressure drop between the both sides of model with bigger vug density is less.