Trelleborg resolves topsides floatover issue offshore China

Offshore staff

SINGAPORE Trelleborg has supplied floatover mating technology to allow a previously stalled oilfield project to proceed in the South China Sea.

An unsuccessful floatover operation in August 2013 caused structural damage to the barge and the jacket, necessitating an overhaul of the floatover system.

Ashburn Offshore Oil & Gas Equipment & Engineering Co. contracted Trelleborg to design and fabricate eight leg mating units (LMUs), comprising four inner legs and four outer legs, and floatover fenders.

To accommodate the 12,500-metric ton (13,779-ton) topsides, each LMU was designed with a load capacity of 1,800 metric tons (1,984 tons).

Julian Wee, managing director of Trelleborg’s engineered products operation in Singapore, said: “We supplied our customized sway and surge fenders to absorb any kinetic forces the floatover barge would exert on the jacket.

“This ensured that the floatover process, especially when installing the topside onto the jacket, was completely safe for both the topside and jacket structures. In conjunction with our fenders, our…LMUs were easily able to support the weight of the topside and maintain stability during installation, even in high sea swell conditions.”


Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now


Making DDoS Mitigation Part of Your Incident Response Plan: Critical Steps and Best Practices

Like a new virulent strain of flu, the impact of a distributed denial of service (DDoS) attack is...

The Multi-Tax Challenge of Managing Excise Tax and Sales Tax

To be able to accurately calculate multiple tax types, companies must be prepared to continually ...

Operational Analytics in the Power Industry

Cloud computing, smart grids, and other technologies are changing transmission and distribution. ...

Maximizing Operational Excellence

In a recent survey conducted by PennEnergy Research, 70% of surveyed energy industry professional...