ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,599, issued on Sept. 8.
"Method and tool for cementing wellbore" was invented by Andrew Hawthorn (Missouri City, Texas), Angela Doan (Spring, Texas), Muhammad Yasser Haddad (Oslo, Norway), Antonio Bottiglieri (The Woodlands, Texas), Gregory Dean (Montgomery, Texas), Bennie Jackson Lindsey (Conroe, Texas) and Mats Ingebretsen (Stavanger, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wellbore can be cemented by injecting into the wellbore a cement slurry comprising an accelerator composite having a shell encapsulating a core comprising an accelerator; a cementitious material; and an aqueous carrier; passing the cement slurry through a tool t...