Technip France

Technip N-power

Technipfmc Subsea France

Thomas Epsztein

Patrice Joel Jung

Frédéric Demanze

Antoine Felix-Henry

Xavier Lefebvre

Jean-Christophe Bourget

Nadège Brusselle-Dupend

Cécile Izarn

Loic Lugiery

Anh-Tuan Do

Frederic Demanze

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

The present disclosure relates to a flexible tubular pipe () of the unbonded type and including, from the inside to the outside, an internal carcass (), first and second polymeric sheaths (), at least one tensile armor layer () and a polymeric sealing sheath () and also at each of its ends, a connecting endpiece () comprising i.a., a tubular sleeve (). The tubular sleeve () of a first endpiece () includes means () for draining the gases from the gap () between the sheaths () towards the outside of the pipe () and the tubular sleeve of the second endpiece () including means for draining the gases from the gap () between two sheaths () towards the outside or towards the inside of the pipe ().

Flexible tubular pipe for transporting a petroleum fluid such as a multiphase fluid or a gas

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Voillecomte, France

Thomas Epsztein