US Patent Issued to SAUDI ARABIAN OIL on March 25 for "Method and material to reduce acid-carbonate reaction rate by endothermic reaction" (Texas Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,517, issued on March 25, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Method and material to reduce acid-carbonate reaction rate by endothermic reaction" was invented by Fakuen Frank Chang (Houston) and Wenwen Li (Pearland, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Well treatment fluids may include solid particles comprising one or more components selected from the group consisting of urea, ammonium nitrate, ammonium chloride, barium hydroxide, and ammonium thiocyanate. These well treatment fluids may also include a carrier fluid, which may be an aqueous polymeric fluid, an oil, or combinations thereof. The aqueous...