US Patent Issued to Subsea 7 on Feb. 24 for "Mitigation of buckling in subsea pipe-in-pipe systems" (British, French Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,270, issued on Feb. 24, was assigned to Subsea 7 Ltd. (Sutton, Great Britain).

"Mitigation of buckling in subsea pipe-in-pipe systems" was invented by Davide Gorgoglione (Viroflay, France), Jens Fernandez-Vega (Woking, Great Britain), Arek Bedrossian (Cheam, Great Britain) and Vincent Boulliat (Garches, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A subsea pipeline of pipe-in-pipe configuration comprises an inner pipe, an outer pipe spaced radially from the inner pipe, and an annulus defined by the radial spacing between the inner and outer pipes. A series of longitudinally spaced outward projections extend radially outwardly into the annul...