US Patent Issued to Chevron U.S.A. on May 26 for "Carbon dioxide sequestered cement for well cementing" (Texas Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,607, issued on May 26, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.).

"Carbon dioxide sequestered cement for well cementing" was invented by Caleb Kimbrell Carroll (Houston) and Deryck Edward Matthew Williams (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of making a cement composite can include contacting an aqueous solution comprising calcium ions with a carbon dioxide source producing a carbonated aqueous solution. Fine particles can be submerged in the carbonated aqueous solution to produce microaggregate particles comprising the fine particles coated with calcium carbonate. The microaggregate particles can be combined...