“…its flushing, contributes to the wellbore productive longevity and concurrent minimization of corrosion impact on the casing [3,4,6]. The problems associated with the cleaning of annular space cover such issues as rheology of drilling fluids, fluid mechanics (fluid flow in annular space), operation of chemical agents, surface active agents, surfactants and also chemical processes taking place in the course of hydration and bonding of cement slurry [1,5,10,14].…”