ABERDEEN, UK—Maritime Developments (MDL) has supplied a special aft recovery system to Subsea7 for use on multiple vessels operating in deepwater.
The assembly comprises a chute, a removal device for buoyancy modules and a horizontal hang-off system. It is designed to be mounted in different locations on the stern of the vessels, supporting replacement of lazy wave flexibles fitted with buoyancy modules.
The system can also be fixed to the deck using sea-fastening brackets with a bolted connection for quick release. It can recover products in varying diameters without the risk of overbending the flexible or crushing the buoyancy modules.
Inboard angle of the chute arc extends more than 90 degrees to facilitate maneuvering of buoyancy modules without using a crane and a dedicated guide rail to support the modules through recovery.
To allow for suspension of the catenary weight during recovery of a damaged lazy wave, the hang-off clamp can be oriented in a horizontal position.
