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Solution & Implementation

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I would like to thank Furmanite for this excellent achievement of completing the boiler load balancing on Friday. This shows your commitment and professional attitude towards your work.
Tanveer Hasan
International Power Hazelwood

Results

The bespoke designed self-sealing encapsulation has been engineered to provide a long term, cost-effective solution to the problem of internal corrosion.

Case Study: Major United Kingdom Refinery

Bespoke clamp cures conundrum – saving £millions in the process

CUSTOMER:  Major United Kingdom refinery

The 36-inch crude oil line was suffering from wall thinning as a result of internal corrosion due to general wear and tear. One option would have been to replace the line, but this would have involved shutting down production of the oil field, with costs running into many millions of pounds in terms of lost production, time and an unplanned shutdown – clearly not a favourable option.

Solution & Implementation

Furmanite was called in to design, engineer and manufacture a long-term solution that could be installed without the need to shutdown production. Within two weeks, an initial bespoke enclosure had been designed taking into account all considerations and operator requirements. A template was then constructed to ensure that all measurements were accurate and that the structure would clear all obstructions.

Not only was there the issue of complex geometry to consider in designing the solution, but a further consideration was the fact that there was an immovable obstruction just 100mm away from the 180º return, making access awkward. Furmanite’s solution was

a specially-designed six-part self-sealing repair clamp, mitred to match the geometry of the pipeline. Fluoro-elastomer was employed providing a high integrity seal, which is compatible with the hydrocarbon line contents over the required design life of the encapsulation. Once fitted, the enclosure was injected with resin to provide the defective pipeline with support.

The design was validated using Finite Element Analysis (FEA) to ensure that the design met code requirements and that deformation, particularly at the clamp’s joint faces, was within acceptable tolerances to ensure leak-tight integrity. The enclosure was engineered to the design pressure of the line (20 bar) and is a long-term solution to the problem of internal corrosion/erosion.

Specialty industrial service and product solutions provider, Furmanite supplies an ever increasing range of industries with maintenance tools and key engineering services such as leak sealing, hot tapping and line stopping. For comprehensive plant and pipeline maintenance and asset uptime maximization, rely on Furmanite.

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