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A semi-submersible platform is a specialised marine vessel used in offshore roles including as offshore drilling rigs, safety vessels, oil production platforms, and heavy lift cranes. They have good ship stability and seakeeping , better than drillships .
Semi-submersible platform, which is typically transported to a location where it is placed in service Oil platform , a large structure with facilities for well drilling to explore, extract, store, and process petroleum and natural gas, in deeper water (more than 1,500 metres (4,900 ft)), the semisubmersibles or drillships are maintained at the ...
Thunder Horse PDQ is a BP plc and ExxonMobil joint venture semi-submersible oil platform on location over the Mississippi Canyon Thunder Horse oil field (Block 778/822), in deepwater Gulf of Mexico, 150 miles (240 km) southeast of New Orleans, moored in waters of 1,840 metres (6,040 ft). [4]
Thunder Horse PDQ is the largest moored semi-submersible production oil platform in the world, located in 1,920 metres (6,300 ft) of water in the Mississippi Canyon Block 778/822, about 150 miles (240 km) southeast of New Orleans.
The radar is mounted on a fifth-generation CS-50 twin-hulled semi-submersible oil platform. Conversion of the vessel was carried out at the AmFELS yard in Brownsville, Texas; the radar mount was built and mounted on the vessel at the Kiewit yard in Ingleside, Texas.
Semi-Submersible platforms have pontoons and columns, typically two parallel spaced apart pontoons with buoyant columns upstanding from those pontoons to support a deck. Some of the semi-submersible vessels only have a single caisson, or column, usually denoted as a buoy while others utilize three or more columns extended upwardly from buoyant ...
Atlantis PQ is a BP and BHP joint venture semi-submersible oil platform on permanent location over the Green Canyon Atlantis Oil Field in deepwater Gulf of Mexico, 190 mi (310 km) south of New Orleans. The "PQ" identifies the platform as being a production facility with crew quarters. [2]
Petrobras 36 (P-36) was a floating semi-submersible oil platform. Prior to its sinking on 20 March 2001, it was the largest in the world. [3] It was owned by Petrobras, a semi-public Brazilian oil company headquartered in Rio de Janeiro. [4] The cost of the platform was US$350 million (currently US$602 million). [5]