By Ben Kuchta, Midlands Section Chair
The Midlands Section recently welcomed DNV GL’s Dr Troy Swankie and Anthony Wood to talk about Repair Techniques in a Modern Age. Delegates travelled to IGEM House on 22 November to hear Anthony give an overview of the practical applications of DNV GL’s epoxy shell clamp technology and how it is being applied to various diameter pipes.
This work began as a British Gas development in the late 1980s and went through extensive performance testing before becoming the principal repair system in the UK for damaged transmission and distribution systems.
However, since the 1980s, this technology has evolved and is now used on small diameter pipes, end seals and to encapsulate fittings. Troy followed by explaining the successful application of the technology on the Welsh government’s Red Roses project, involving significant changes to the A477, and Transport Scotland’s new bypass on the A737.
On both occasions, the epoxy shell technology was successfully used and influenced TD/1 to recognise the techniques. In the case of the Red Roses project, National Grid had considered shutting down the pipeline at an estimated cost of at least £50 million.
Thanks to the success of using the epoxy shell technology, DNV GL was awarded the 2016 Land-based/Onshore Pipeline Technology Award from the Pipeline Industries Guild.
Overall, the epoxy shell technology has proven itself to be a cost effective solution for pipeline protection; it is design compliant with the requirements of TD/1 and the pipelines remained operational throughout without the need for hot works.
Following the Q&A session, delegates stayed to hear more about the continued work Anthony and Troy have been and will be doing with the technology.