Study of Permeable Cements on Restoring Damaged Formations

Abstract This article presents a successful research and development of three types of permeable cements, along with a detailed description of the mechanism by which a permeability-enhancing agent works to achieve desired permeability in a cement stone. The results from the laboratory experiments and the field treatments indicate that a permeable cement is suitable for restoring damaged formations, especially the high water- and sand-producing formations; it can be effective on water shut-off and sand control; it can improve water injection profile and prevent fluid loss from a well; and it has a long effective treatment lifetime.