Computational Model for Production of a Rhombus Reverse Five-Point Well Pattern with Non-Darcy Seepage, Taking into Account Startup Pressure Gradient

Abstract

Based on the characteristics of water injection into the reservoir and using the streamline calculation method and the unit analysis method, we derive a computational model for non-Darcy seepage production from a rhombus reverse five-point well pattern in a low-permeability reservoir. In order to test the adequacy of the method, we used data on fluid seepage from a real low-permeability reservoir. The method identified a relationship between the startup pressure gradient, the hole spacing, the row spacing, and the production capacity, and also provided a basis for designing a model for a rhombus injection well pattern in low-permeability reservoirs.