In the complete paper, the inverse-injectivity method of evaluating matrix-stimulation performance is modified and validated with real data of two matrix-acidizing operations in a gas-condensate field. High-tech testing is playing a bigger role than ever in helping shale producers reduce the time needed to screen out bad ideas. With multistage operations becoming the industry norm, operators need easily deployable diversion technologies that will protect previously stimulated perforations and enable addition of new ones. This paper reviews several aspects of the use of in-stage diversion. Significant production gains are being made with hydraulicly fractured wells using diversion to stimulate a higher percentage of the perforations.