April 26 - Singapore-based Calm Oceans has begun developing two heavy lift semi-submersible vessels that will be suitable for the construction and decommissioning of offshore platforms, says the company's owner, Brian Chang.

Each vessel is designed to lift 7,500 tonnes via two onboard cranes.

Chang, who was the founder and owner of Yantai Raffles Shipyard, which helped to design and build the world's largest shipyard crane, says that the construction period will be 30 months.

Through Calm Oceans, Chang has pioneered the patented MCP (Mono Column Platform) self-installing and self-removing offshore platform for the offshore oil and gas industry, which is being built at Blue Island Shipyard in China.