ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,326, issued on Nov. 11, was assigned to PRUITT TOOL & SUPPLY Co. (Fort Smith, Ark.).
"Compact managed pressure drilling system attached to rotating control device and method of maintaining pressure control" was invented by Martyn Parker (Fort Smith, Ark.), Majid Moosavinia (Cornwall, Great Britain) and Benjamin Micah Spahn (Alma, Ark.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The managed Pressure Drilling manifold provides accurate back pressure control of a well head when drilling. The MPD system provides two paths for the drilling fluid to flow from the RCD to the flowline. The drilling fluid flows along an MPD path sending the drilling fluid...