ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,251, issued on July 22, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Seals for electric submersible pumps" was invented by Raju Ekambaram (Singapore) and Teng Fei Wang (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "Electric submersible pump systems, and more particularly, seals for ESPs, are provided. An electric submersible pump includes a plurality of impellers; a plurality of diffusers; at least one sealing ring positioned axially between two consecutive diffusers of the plurality of diffusers; and at least one O-ring positioned axially between the at least one sealing ring and a lower of the two consecutive diff...