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Joint integrity specialist Hydratight has completed an upgrade project on a section of subsea pipeline on the North West Shelf of Western Australia.

Contracted by Western Australia-based Quadrant Energy Pty Ltd on behalf of the John Brookes Joint Venture, Hydratight engineered, manufactured, delivered and supported the installation of an 18 in. MORGRIP^(R) connector on the John Brookes subsea pipeline located 54 km northeast of Quadrant鈥檚 Varanus Island facilities.

Two of Hydratight鈥檚 most experienced engineers, Mark Fisher and Bob Till, who have been in senior industry roles for a combined 65 years, were embedded in the offshore installation team.

鈥淭his was an exciting project to be part of due to strict safety and environmental expectations in place,鈥� explained Mark. 鈥淭hese included working closely with a DNV inspector who flew in from Singapore to witness all aspects of the upgrade. It also meant an independent critique of our manufacturing procedures.鈥�

鈥淭he component parts were of extremely high specifications and we had strict rules on forging and manufacturing. These included the use of a compliant biodegradable mineral hydraulic fluid used for activating the tensioners and flushing and cleansing all tooling. We ensured no other unassessed hydraulic fluid was used.鈥�

A representative from Quadrant Energy oversaw the factory acceptance test of the completed connector in the UK, before witnessing a second test and diver training on arrival in Australia.

Bespoke features were included on the engineered product. These included corrosion resistant alloy cladding, composite graphite seals, Hydratight鈥檚 ball and taper technology and also the company鈥檚 subsea tensioning equipment.

Mark added: 鈥淲e were pleased to be able to provide face-to-face technical support to Quadrant prior to and during this challenging international project.鈥�

The MORGRIP series of connectors is known for a leak-free record since they were first installed in the 1980s as an alternative to welding. They take less manpower and fewer man hours during commissioned projects. The technology is a permanent solution, yet the connector can be detached and reused.

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