ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,273, issued on Feb. 4, was assigned to Halliburton Energy Services Inc. (Houston).
"High density brine internal phase" was invented by Jay Paul Deville (Spring, Texas), Hui Zhou (The Woodlands, Texas), Chesnee Lae Davis (Spring, Texas) and Catherine Martin Santos (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "An oil-based treatment fluid for use in subterranean operations may comprise an invert emulsion including an aqueous internal phase and an oil external phase. The aqueous internal phase is solids free and comprises a two-salt brine and a true crystallization temperature reduction additive. The two-salt brine comprises a bromide and a ni...