Abstract
Diverting agents composed of finely ground, oil-soluble resin particles were tested in the laboratory and modeled with a numerical simulator to determine their effectiveness in matrix stimulation treatments. First, the diverting agents were characterized with linear coreflood tests, and then experiments were performed in a physical wellbore model scaled to a typical well completion. A numerical simulator was developed to predict the effect of diverting agent on injected fluid distribution. This paper describes the laboratory and mathematical models of diverting agent behavior and the results obtained with these models. Among the conclusions drawn from this study are: the finely ground, oil-soluble-resin diverting agents are effective for matrix diversion; diverting agent added continuously to treating fluid equalizes the flow to all zones; and diverting agent injected in small stages ahead of treating fluids can cause a highly skewed distribution of injected fluid.
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