Helix Energy Solutions has ordered a semi-submersible well intervention rig at SembCorp Marine in a deal worth $385.5m.

The Singapore yard group is due to deliver the semi-sub from its Jurong Shipyard in January 2015, the company said Tuesday.

“This new asset is being constructed to meet an increasing market demand for specialized deepwater well intervention services worldwide,” said Helix chief executive Owen Kratz.

“We