Technip France

Jeroen Remery

Ange Luppi

Romain Vivet

Christophe Defreslon

Sylvain Denniel

Scott Hall

This method comprises connecting a downstream point () of a pipe () to a buoy () and completely submerging the buoy (). It comprises deploying in the body of water () an intermediate section () of the pipe () from the downstream point () to at least as far as an upstream point (), anchoring the upstream point (), and tensioning the intermediate section () to keep it vertical. The connecting step includes activating a traction unit () to raise the downstream point () on the buoy (). During the connecting step, the buoy () is carried in the body of water () virtually exclusively by its own floatability.

Method for installing an operating rig for a fluid in a body of water with a traction unit

This method comprises connecting a downstream point () of a pipe () to a buoy () and completely submerging the buoy (). It comprises deploying in the body of water () an intermediate section () of the pipe () from the downstream point () to at least as far as an upstream point (), anchoring the upstream point (), and tensioning the intermediate section () to keep it vertical. The height of the buoy () is less than 1.5 times its greatest transverse dimension. The method comprises moving the buoy () between a remote position and an installed position in line with an anchoring region, keeping the buoy () partly submerged on the surface () of the body of water.

Method for assembling an operating rig for a fluid in a body of water and associated operating rig

An apparatus for venting an annular space between a liner and a pipeline of a subsea riser used for conveying hydrocarbons, the apparatus comprising a permeate recovery device for recovering permeate passing through the liner into the annular space. The permeate recovery device includes a first vent port in a wall of the pipeline at or adjacent a lower region of the pipeline and communicating with a permeate recovery line defining a flow path between the annular space and a permeate collection vessel. A one-way valve is associated with the permeate recovery line for preventing flow from the permeate recovery line into the annular space. A gaseous permeate recovery line connected to a second vent port at an upper region of the pipeline defining a flow of gaseous permeate from the annular space.

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Saint Germain-en-Laye, France

Jeroen Remery