Technip France

Technip N-Power

Philippe Lembeye

Yann Nicolas

Antoine Felix-Henry

Jean-Christophe Bourget

Guillaume Chaudet

Pierre Rocher Monnier

A method for checking a flexible line, the flexible line including at least one layer of armors () surrounded by an external sheath (), the external sheath () delimiting an internal space () receiving the layer of armors () and including at least one medium (M) at the interface between the external sheath () and the internal space (). The method includes sending an ultrasonic signal on a region to be checked of the external sheath (), and receiving the reflected signal at the interface between the region to be checked of the external sheath () and the internal space () facing the region to be checked of the external sheath (); and analyzing the polarity of the reflected signal and determining, according to the analyzed polarity, at least the nature of the medium (M) at the interface.

Method of checking a flexible line and associated installation

A method for calibrating a device for monitoring the curvature of a stiffener () of a flexible sea line: A monitoring device has a deformable rod () having a central axis (C) and at least three optical sensors () maintained pressed against the perimeter of the rod (). The method includes the steps, for different consecutive orientations of bending planes around the central axis; bending the rod () according to the same curvature radius; measuring the deformation of the sensors () during the bending; using the measured deformations to extrapolate a sine function of the deformation for each sensor according to the orientation of the bending plane; calculating error-correction coefficients according to the angular shift between the extrapolated sine functions and according to the amplitude of the extrapolated sine curves.

Method for calibrating a device for optical curvature monitoring

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Montigny, France

Philippe Lembeye