Real-time monitoring of matrix acidizing including the effects of diverting agents
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In this paper, a new method for real-time monitoring of matrix acidizing, the inverse injectivity vs. superposition time function plot, is presented. This new method can be applied with a spreadsheet computer program or a programmable calculator and accounts for the transient flow effects during matrix acidizing at multiple rates and injection pressures. The evolving skin factor during a matrix treatment is readily and accurately obtained from the diagnostic plot. Examples show how the plot can be used to assess the efficiency of stimulation and diversion.