US Patent Issued to Halliburton Energy Services on July 29 for "Drilling fluid additives for high-density reservoir drilling fluids" (Texas Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,604, issued on July 29, was assigned to Halliburton Energy Services Inc. (Houston).

"Drilling fluid additives for high-density reservoir drilling fluids" was invented by Preston Andrew May (Houston), Hui Zhou (Houston) and Jay Deville (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Drilling fluids for drilling a wellbore. An example drilling fluid includes an aqueous base fluid, a first fluid loss control additive that comprises a cross-linked polymer comprising N-vinylpyrrolidone as a monomer, and a second fluid loss control additive that comprises a cloud point glycol."

The patent was filed on April 8, 2024, under Application No. 18/629,4...