ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,967, issued on March 18, was assigned to Halliburton Energy Services Inc. (Houston).

"Methods to regulate downhole fluid flow through a plurality of valves and downhole fluid flow regulation systems" was invented by Stephen Michael Greci (Carrollton, Texas), Julia Mosina (Kingwood, Texas), Graham Baines (Abingdon, Great Britain) and Brad Robert Bull (Duncan, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Regulating downhole fluid flow through a plurality of valves to treat wellbore sections while also allowing for production to continue. If it is determined that fluid flow through a valve of a plurality of valves is below a threshold, maintai...