The CX-15 platform, called the world’s first such structure, was installed in 175 ft of water 1 mile from the existing CX-11 platform, reports Horton Shallow Water Developments, the designer.
The hull was floated horizontally from the Offshore Heavy Transport Osprey heavy-lift vessel, which carried it to the location from the construction site in Nantong, China, and upended with a controlled flood. The hull took on additional ballast before mating of the topsides.
The platform can support production of 12,200 b/d of oil and 12.8 MMscfd of natural gas. It has produced-water handling and injection capacity of 3,500 b/d.