US Patent Issued to HUNTSMAN PETROCHEMICAL on Dec. 2 for "Synergistic performance of amine blends in shale control" (Texas Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,444, issued on Dec. 2, was assigned to HUNTSMAN PETROCHEMICAL LLC.

"Synergistic performance of amine blends in shale control" was invented by David C. Lewis (The Woodlands, Texas), John Clements (The Woodlands, Texas) and James Machac (The Woodlands, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides water-based well treatment fluids methods of using such fluids in treating subterranean formations to prevent swelling and/or migration of fines. The water-based well treatment fluid contains an aqueous continuous phase and a clay stabilizing agent comprising less than 20% by weight, based on the total weight of the clay...