Technip France

Ifp Energies Nouvelles

Xavier Lefebvre

Patrice Joel Jung

Yann Nicolas

Marie-Hélène Klopffer

Thomas Epsztein

Nadège Brusselle-Dupend

Patrice Jung

The present application relates to a method for pressurizing the inner flow space of an underwater flexible pipe intended for transporting hydrocarbons, comprising the following steps:

Method for pressurizing the inner flow space of a flexible pipe intended for transporting hydrocarbons

Method for testing a pipe for carrying hydrocarbons. The pipe has at least one internal sealing sheath made of polymer material, incorporating elements of reactive compound capable of reacting with corrosive gases contained in the hydrocarbons which diffuse radially through the sheath. The reaction forms a first layer, extending radially from the internal surface, in which the elements of reactive compound have reacted with the gases. A second layer, extends between the first layer and the external surface, in which the elements of reactive compound have not yet reacted with the gases. The method uses ultrasound to determine the position of an interface between the first and second layers to measure the progression of the diffusion of the gases through the sheath.

Method for testing the integrity of a flexible tubular pipe and device for implementing same

Method for testing the integrity of a flexible tubular pipe

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Conflans-Sainte-Honorine, France

Xavier Lefebvre