Shale Fracturing Testing

What specific tests are recommended for shale fracturing?

A suite of practical laboratory tests has been developed to characterize the performance of shale fracturing fluids and chemicals. The testing suite includes friction reduction, capillary suction time, and shale strength changes after exposure to the fracturing fluid. At least three separate components need to be considered for a fracturing job. These components include the water, the formation rock, and the fracturing fluids. The qualities of these components should be considered individually as well as collectively in order to predict the success of the fracturing treatment.