Heerema Marine Contractors Nederland Se

Shawcor Ltd.

Helen Rose Boyd

Lara Elizabeth Wills

Erwan Karyadi

Thomas Balder

Simone Van Rosendaal

A pipeline having a series of interconnected pipe sections forming Field Joints, each pipe section having a coating with a thermal insulation layer which extends over a substantial portion of a length of the pipe section, and an anti-corrosion layer situated underneath the thermal insulation layer. The pipeline has a Field Joint Coating (FJC) at connection regions where ends of the adjacent pipe sections are interconnected. Each FJC has an anti-corrosion coating layer, an intermediate coating layer of a thermoplastic material which covers the anti-corrosion coating layer, and a FJC thermal insulation layer which covers the intermediate coating layer.

Field joint coating

A method of manufacturing a Field Joint Coating (FJC) for a pipeline, the method comprising: providing a pipe section to be joined to a similar pipe section or free end of a pipeline, wherein each pipe section is provided with a coating comprising a thermal insulation layer over a length of the pipe section having a protruding section, wherein the end zones of each pipe section are free of thermal insulation, thereby allowing access to the ends of the pipe section and the pipeline to connect the pipe section with the free end of the pipeline, applying an anti-corrosion coating layer on a connection region of the joined ends of the pipe section and the pipeline, heating the protruding section and applying an intermediate coating layer of a thermoplastic material on the anti-corrosion coating layer and the protruding section, applying a thermal insulation layer on the intermediate coating layer.

Method of manufacturing a field joint coating

The ends of two pipeline units are joined together at a pipe joint. Each pipeline unit has a pipe member and a pipe coating surrounding the pipe member. The pipe coating extends along a length of the pipe member. A joint coating surrounds the pipe joint and is made from a material comprising a silicone.

Pipeline unit

A pipeline unit () comprising a pipe member () and a pipe coating () surrounding the pipe member (), which pipe member comprises a pipe end (), and which pipe coating () extends along a length of the pipe member and ends at a coating end face located at a distance from the pipe end, wherein a bonding member () is provided on the coating end face, which bonding member () is attached to the coating end face and made from a material which is different from the material of which the pipe coating () is made.

Growing community of inventors

Leiden, Netherlands

Helen Rose Boyd