Solution & Implementation
A permanent, reliable, on-line strengthening solution was urgently required to avoid potential fracturing and, ultimately, rupture. Conventional methods of permanently solving this position were out of the question as the line would either have to be drained and replaced – something that could not be done given its critical function – or a bypass would have been created around the damaged section using hot-tapping, to enable removal and replacement, impossible in this instance since vibration in the pipe due to its proximity to the pump precluded any degree of accuracy. The solution came in the form of advanced composites technology from Furmanite. Using carbon fibre and epoxy resin allowed the necessary work to be undertaken on-line, required no hotwork, and was able to accommodate the complex geometries and overcome the potential difficulties of restricted access.