Method and apparatus for improving cement bond of casing in cyclic load applications

An apparatus and method for pre-loading a production casing string being cemented to a section of surface casing and wellbore disposed below the surface casing is provided. The apparatus includes an anchor which is secured to a bottom-hole section of the parent casing string. The production casing string is connected to the anchor. Pulling on the anchor puts the production casing string in tension. The anchor includes a lock sleeve and a wedge which secures the arms of the lock sleeve in recesses formed within the inner surface of the parent casing string when the rig pulls on production casing string connected to the anchor thereby setting the anchor in the bottom-hole section of the parent casing string. The bottom-hole section of the parent casing string is formed with ribs which enhance bonding of the parent casing string to the cement between the parent casing string and wellbore.