ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,063, issued on Feb. 24.

"Method of enhancing foam stability for stimulation of low pressure reservoirs" was invented by John H. Mayor (Cypress, Texas), Marty J. Usie (Youngsville, La.) and Kelly Guilbeau Berard (Breaux Bridge, La.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The stability of foams containing a viscoelastic surfactant of an amine or amidoamine oxide and exhibiting thermal resistance at bottomhole temperatures greater than 300deg F. may be enhanced by including in the foam a microemulsion containing a nonionic surfactant and a terpene."

The patent was filed on Nov. 1, 2022, under Application No. 17/978,538.

*For further informatio...