Coflexip

Mike Bell

Bill George Louis

Antoine Bastard

The invention concerns a double-sheath rigid pipe for transporting hydrocarbons consisting of two respectively inner () and outer () coaxial tubes separated by an annular gap (), said pipe being adapted to be wound and comprising a device limiting the propagation of a deformation occurring on the outer tube, wherein a radial stop device () linked to the inner tube () but not linked to the outer tube () allows a localized collapse of value G of the outer tube, G being selected to stop the propagation of a deformation of the outer tube ().

Double-sheath pipe for transporting fluids, provided with a device for limiting propagation of a buckle of the outer tube and method for limiting propagation

A device for arresting the propagation of a buckle appearing on an outer tube of a double-walled rigid pipe intended to transport hydrocarbons and consisting of two coaxial tubes. The double-walled pipe is of the reelable type and intended for very great depths and consists of a thick and rigid annular transverse partition fastened to the inner tube and to the outer tube. The partition is joined to the outer tube and to the inner tube by way of an outer and inner sleeve having the same diameter as the outer and inner tubes and fastened to the latter.

Growing community of inventors

Aberdeen, United Kingdom

Mike Bell