ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,530, issued on April 22, was assigned to ConocoPhillips Co. (Houston).
"Annulus cement breaker" was invented by Ian Alexander Milne (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations described and claimed herein provide systems and methods for breaking cement within an annulus of a wellbore. In one implementation, an annulus cement breaking system includes a cement compression tool operable to be disposed within an inner bore of a casing having a longitudinal length. The casing is disposed within a wellbore formed in a subterranean formation having a cement layer disposed within an annulus formed between the casing and the subter...