Numerical study of the natural fracture using dual porosity-dual permeability model for Rumaila Field, southern Iraq (original) (raw)

Arabian Journal of Geosciences, 2021

Abstract

This paper presents an experimental and numerical study to investigate the hydrodynamics behavior of the fractured and nonfractured cores. The comparison between the simulated and experiments result is also presented. In this work, the Element Based Finite Volume Method (EbFVM) was used according to the Dual Porosity Dual Permeability Model (DPDP). The behavior of single-phase fluid flow in actual cores was studied for a fractured reservoir in Iraqi fields from Rumaila/Mishrif formation at different depths. ANSYS-CFX, a finite element based simulator was used to represent the pressure and velocity distributions. Therefore, the comparison between a fractured core and a nonfractured core was performed. The representation of fluid flow behavior in a fractured reservoir was presented. It is found that the presence of cracks increase the percentage of improvement in the productivity index to reach about (6.59% and 10.46%) for Rumaila core 14 and Rumaila core 15, respectively.

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