ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,511, issued on Feb. 3, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Roll isolated rotary steerable systems employing digital valves" was invented by Geoffrey Charles Downton (Cambridge, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary steerable system including a plurality of extendable pads deployed in a drill collar. Each of the pads is configured to extend radially outward from the drill collar and engage a wellbore wall and steer a direction of drilling. A plurality of digital valves is in fluid communication with corresponding ones of the plurality of extendable pads such that opening one of the plural...