Method of Selective Injection of Chemical Reactants into a Inhomogeneous Layered Reservoir

Abstract

The unsteady process of homogeneous compressible fluid flow through a porous weakly deformable inhomogeneous layered reservoir is considered in the absence of a hydrodynamic connection between the layers. A method of selective injection of chemical reactants into high- or low-permeability parts of the reservoir based on fluid injection at a rate determined by the intensity of the well-bore crossflows after the shutting-in of the well is proposed. This method makes it possible to inject a fixed quantity of reactant, determined by the reservoir system parameters and the well operating regime, into the high- or, conversely, low-permeability layers.