method for sealing downhole equipment, method for fabricating a self-sealing downhole tool and method for sealing downhole equipment

摘要

A method and apparatus for preventing fluid flow and contamination of a cement body includes a resin cap covering an exposed end of the cement body. The cement body may attach an inner sleeve to an outer sleeve. Fluid flowing through the outer sleeve is prevented from coming into contact with the surface exposed by the resin cap. Resin caps at both ends of the cement body along with resin layers along the side can be included. The resin avoids contamination and creation of microanules in the cement body.