ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,033, issued on June 30.
"Encapsulated internal filter cake breaker" was invented by Autumn Shepherd (Katy, Texas), Dorianne A. Castillo (Humble, Texas), Oleg Mazyar (Katy, Texas), Rostyslav Dolog (Houston), Radhika Suresh (Sugar Land, Texas) and Angela Doan (Spring, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes: introducing a breaker composite into a subsurface formation, the breaker composite having a shell encapsulating a core comprising a breaker; breaking or degrading the shell of the breaker composite to release the breaker; and reacting the released breaker with a component of a filter cake, a scale, or a combination t...