Offshore staff

GREAT YARMOUTH, UK – Claxton Engineering Services is supplying a Norwegian contractor with a subsea drilling riser package.

The 7,000-psi, 24-in. (61-cm) riser will be used to drill one well and two completion wells in 135 m (443 ft) of water in the Norwegian North Sea. It will be used for 240 days and is due to run for the first time early in 2012.

The package comprises riser joints, customized flange connectors; vortex-induced-vibration suppression fairings; a bespoke tension system; and a Claxton NT2 handling tool.

According to Claxton, the custom flanges for the riser have a smaller diameter than standard API flanges and offer improved make-up times and fatigue characteristics.

Pulse Structural Monitoring will provide a riser monitoring system to provide data on real-time fatigue, bending and stress monitoring to help determine how the riser is performing.

01/11/2012