In modem aircraft construction carbon fibres are used in the construction of wings and tail fins to reduce weight while not compromising in strength. With the advent specialised resins and advanced reinforcing fibres, composites are now accepted in a wide variety of repair applications including piping systems and pipelines. This technology has matured significantly in the last decade and is now widely used throughout the world by the largest and most technically advanced oil and gas companies. Traditionally mechanical defects in pipes and pipelines, which have been detected either by working on the pipeline or by intelligent pigging, have been repaired by replacing the defective areas with metallic pipe segments or by welding on metallic sleeves. The use of thermosetting plastics and reinforcing fibres has a long and varied history of being used as a repair material for structural repairs. The use of composite or laminate repair systems for pipes is presented. The fabric options consist primarily of Carbon, Kevlar or Glassfibres, which are bound together and bonded to the pipe with various resin options. Particularly the carbon fibres belong to the state of the art high-tech materials, which due to their outstanding tensile strength and very high stiffness are developing more and more new fields of application. The Black Diamond repair system to rehabilitate and to restore the original operational strength to corroded pipeline systems is presented. A full restoration of the pipeline can be successfully executed even up to a loss of 80 % of the original wall thickness. During the repair work the line can remain in service. There is no shutdown of the pipeline necessary for the benefit of the wrap application.
Non-metallic composite repair systems for pipes and pipelines
Drei R International ; 49 , Special 1: Pipeline Technology ; 42-46
2010
5 Seiten, 7 Bilder, 9 Quellen
Article (Journal)
English
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