ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,503, issued on March 31, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Wellbore balanced pressure compensation for rotating control device (RCD) rotary seals" was invented by Nathaniel Pettibone (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A seal assembly of a rotating control device (RCD) includes an interior chamber isolated from an external portion of the RCD and configured to store compensation fluid. The seal assembly also includes a path coupled to the interior chamber. The seal assembly further includes a seal chamber coupled to the path. The seal assembly additionally includes a seal element disposed in the ...