ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,623, issued on Dec. 30, was assigned to DOWNHOLE CHEMICAL SOLUTIONS LLC (Frisco, Texas).
"Composition and method for breaking friction reducing polymer for well fluids" was invented by David O. Trahan (Lafayette, La.) and Vanessa Madrid (Youngsville, La.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polymer breaking solution usable in fracking and other downhole applications comprises a solution of aqueous hydrogen peroxide, an anionic surfactant, a metal chelating agent, an acidic pH buffer, a soluble zinc compound, and in some embodiments, a viscosifying agent. In other embodiments, the solution may additionally comprise a linear hydrophobic su...