OIL AND GAS | PROCESSING
Variants of composite pipe – including TCP, RTP and RTR – are all finding greater use in the oil and gas sector, thanks mainly to their robust properties and resistance to corrosion
Composite picture: pipe for oil and gas
Delegates at last year’s Oil & Gas Non-Metallics conference – organised by AMI – discovered a number of benefits of using composite pipe. In a joint presentation, Evonik and Strohm said
that polymers could help to usher in a new type of energy structure – a floating offshore wind farm that produces hydrogen. The presenters – Carsten Schuett of Evonik
Smart Materials and Frans Janssen of Strohm – said that offshore hydrogen will create an €800 million pipeline market by 2030, mainly for fixed bottom capacity. “There is a strong backlog and commitment for
floating wind energy,” they said. From 2030, there are likely to be gigawatt-scale deployments of integrated hydrogen solutions, they added. The units work by electrolysing seawater – pow-
ered by wind turbines – to produce hydrogen, which is then pumped ashore. They said that a thermoplastic composite pipe
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made of carbon fibre, PA12 and UD tape would be spoolable and hydrogen-insensitive – while minimising installation and operation costs. However, such materials will need to go through
rigorous tests before they can be used. This will test properties – such as rapid gas decompression (RGD) – to compare how the pipes behave in comparison with hydrocarbon fluids. This type of pipe is already deemed ‘hydrogen suitable’ for onshore use – and several pilot installations are already in operation. A number of tests have been carried out, including RGD – which revealed that, “with respect to qualified insensitivity of CF/PA12 TCP to high pressure CO2 expected for H2
RGD at 700bar no effect can be ”.
“Qualification efforts of TCP for hydrogen service predominantly require assessment of its physical effects on the characteristics of the thermoplastic materials and their composites,” said the presenters.
Main image: The oil and gas sector is increasingly adopting plastic and
composite pipe
� October 2023 | PIPE & PROFILE EXTRUSION 17
IMAGE: SHUTTERSTOCK
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