Disconnect tools deployed from subsea support vessel

Offshore staff

ACCRINGTON, UK – Allspeeds has supplied Webtool Emergency Disconnection Tools to AKOFS Offshore for a subsea equipment orientation system (SOES) used to install subsea trees from the Skandi Santos support vessel.

The Webtool cutters are integrated within the SOES, ensuring quick disconnection of the bundles of hydraulic jumpers and electrical flying leads should the vessel move off-station.

According to Allspeeds, the SOES enables installation of subsea trees in roughly half the time taken by a conventional rig.

During an emergency disconnect situation, the Webtool cutter will cut a bundle of 10,000-psi (689-bar) hydraulic jumpers, connecting the SOES to a subsea tree stack, in a single operation in less than 10 seconds, the company adds.

The hose bundle is manually loaded into the mouth of the hydraulically operated cutter during installation and remains there throughout the life of the SOES.

Webtool cutters are designed for deployment for extended periods subsea in water depths of up to 3,000 m (9,842 ft) water depth. They can be function tested in situ, ensuring readiness for use if an emergency should occur.

02/02/2016

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