Girder Clamp Specified for a Subsea Production Riser

Lindapter’s Girder Clamps were selected by Apache North Sea subsea engineers and then installed by divers more than 100m below sea-level to secure the production riser on the Forties Alpha platform to the base support frame for the Aviat field development project. The Apache structural design engineers were tasked with finding a robust connection to secure the production riser’s supporting framework. The brief required a connection that would withstand high loads and outlive the production riser, while providing a quick way for the divers to carry out the installation while wearing thick gloves underwater. Corrosion resistance and fatigue life were of paramount importance as the application needed to be able to support the weight while handling wave action on the host platform and movements from internal pressure in the production riser for over 15 years.

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