Composite Flowlines, Risers, and Pipework in Offshore Applications

Fig. 1—Partial assembly of a prototype to test the axial load strength of a pin-and-trap metal/composite interface.

Composite materials can offer technologically viable and cost-effective solutions for the production of highly corrosive fluids in very deep water, although there is a need to access the key issues of durability and integrity assurance of these components. Research in this area seeks to address their safe use during the operating life of production systems. This paper gives an overview of ongoing research activities on the subject of offshore use of composite flowlines, risers, and topside piping.


The operator developed a plan to deploy an instrumented composite drilling-­riser joint in different positions along a drilling riser operating at a given platform. The idea was to submit the composite joint to different load levels—dependent on the position of the joint alongside the riser—and by doing so address its structural behavior in a real operational environment. In the meantime, the operator also followed the development of composite wires for tensile armors of flexible unbonded risers, research newly spurred by the presalt scenario with its deeper waters and very corrosive fluids. At the same time, the idea of using thermoplastic-composite bonded pipes became a reality through the studies and efforts of companies new to the offshore pipe market.

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper OTC 24049, “Strategy Concerning Composite Flowlines, Risers, and Pipework in Offshore Applications,” by Luiz C.M. Meniconi, Walter Carrara Loureiro Jr., Fernando Costa dos Santos Jr., and Carlos Cunha Dias Henriques, Petrobras, prepared for the 2013 Offshore Technology Conference, Houston, 6–9 May. The paper has not been peer reviewed. Copyright 2014 Offshore Technology Conference. Reproduced by permission.
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Composite Flowlines, Risers, and Pipework in Offshore Applications

01 December 2014

Volume: 66 | Issue: 12


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