US Patent Issued to Schlumberger Technology on Nov. 18 for "Single-phase retarded acid based on a cationic surfactant" (Texas Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,486, issued on Nov. 18, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Single-phase retarded acid based on a cationic surfactant" was invented by Samuel Danican (Sugar Land, Texas), Haiyan Zhao (Sugar Land, Texas) and Patrice Abivin (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions for matrix acidizing and fracture acidizing contain water, an acid, and an acid retarding agent including an alkyl dimethyl benzyl ammonium chloride surfactant. The composition may be prepared and injected into a wellbore penetrating a subterranean formation."

The patent was filed on March 23, 2023, under Application No. 18/723,901...