Balltec adapts lifting technology for Åsgard subsea modules

Offshore staff

MORECAMBE, UK – Balltec Engineered Solutions, working with Aker Solutions and Statoil, has designed and manufactured the lifting and handling solution for the world’s first subsea gas compression plant at the Åsgard complex in the Norwegian Sea.

This began operating recently in a water depth of 300 m (984 ft).

The Balltec flexible connector solution was applied to deploy five subsea modules of varying weights and sizes, the largest measuring 14.9 x 9.9 x 8.5 m (48.9 x 32.5 x 27.9 ft).

The connectors were designed as part of an engineered lift and were used to connect the modules and a lifting frame to accommodate the complex load parameters.

Marco Teixeira, Balltec technical director, said that since the module design parameters had already been set, the system had to be sufficiently flexible “to adapt to the existing designs but robust enough to cope with the extremely difficult load conditions.”

The resultant adapted LiftLOK is a mechanical system that does not require any manual or remote intervention during connection and is designed to be tolerant to substantial negative and side loads.

Balltec supplied 58 male and 12 female connectors and designed and manufactured two customized test rigs. Following the successful execution of the initial five lifting systems, Aker Solutions and Statoil also contracted the company to a different lifting solution for the final, sixth module.

10/29/2015

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