ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,833, issued on March 25, was assigned to FMC Technologies Inc. (Houston).
"Single run preloaded casing hanger and annulus seal assembly and methods of use thereof" was invented by Ryan William Phillips (Houston), Justin Rodriguez (Houston), Jasmeet S. Johar (Houston), David Mcvay (Houston), Marlon Arboleda (Houston) and Joseph Graham (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A running tool (87) having an annulus seal assembly (86) and casing hanger (89) attached thereto may be sent into to the wellhead (1) to lock and preload the casing hanger (89) in a single trip. The running tool (87) may be rotated a first time to drop the annulus...