US Patent Issued to Halliburton Energy Services on Sept. 22 for "Branched polyvinyl alcohol as a shale stabilizer for drilling fluid applications" (Indian, American Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,024, issued on Sept. 22, was assigned to Halliburton Energy Services Inc. (Houston).

"Branched polyvinyl alcohol as a shale stabilizer for drilling fluid applications" was invented by V. Ramireddy Devarapalli (Pune, India), Sunita S. Kadam (Pune, India), Rahul Patil (Pune, India) and William Cecil Pearl Jr. (Spring, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method may include: introducing a water-based drilling fluid comprising an aqueous base fluid and a branched polyvinyl alcohol shale stabilizer into a drill string; extending a wellbore using the drill string through a subterranean formation comprising a shale; and allowing the bran...