Yes it’s possible to control and slow pad growth but almost impossible to prevent it from happening. The most common type of pad/interface especially in the Permian Basin and Eagle Ford consist of iron sulfide and solid residuals from flowback and produced water. If not properly treated the combination of iron sulfides and residual suspended solids from production wells along with gels and other completion fluids will bond together and begin to form pads. By using the right chemical program and constantly dissolving the iron precipitants this will prevent pads/interface from getting out of control.