ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,272, issued on Feb. 3, was assigned to Halliburton Energy Services Inc. (Houston).

"Treating flowback emulsions" was invented by Chunli Li (Houston), Zhiwei Yue (Houston), Linping Ke (Houston) and Antonio Recio (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A variety of methods, compositions, apparatuses, and systems are disclosed, including, in one embodiment, a technique of hydraulic fracturing involving providing a fracturing fluid having capsules containing a demulsifier through a wellbore into a subterranean formation and hydraulically fracturing the subterranean formation with the fracturing fluid, wherein the fracturing fluid forms an...