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The first semi-submersible floating production platform was the Argyll FPF converted from the Transworld 58 drilling semi-submersible in 1975 for the Hamilton Brothers North Sea Argyll oil field. As the oil industry progressed into deeper water and harsh environments, purpose-built production semi-submersible platforms were designed.
Another type of offshore platform may float with a mooring system to maintain it on location. While a floating system may be lower cost in deeper waters than a fixed platform, the dynamic nature of the platforms introduces many challenges for the drilling and production facilities. The ocean can add several thousand meters or more to the fluid ...
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 ...
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Semi-submersible types are used for petroleum exploration in deep waters. They are fixed in place by column tubes, piles, or other bracing systems. The pontoon-type VLFS platform rests on the water surface and is intended for deployment in calm waters such as a cove, a lagoon or a harbor. Its basic element is a simple box structure; it usually ...
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]
An Expeditionary Transfer Dock (ESD), formerly the Mobile Landing Platform (MLP), is designed to be a semi-submersible, flexible, modular platform providing the US Navy with the capability to perform large-scale logistics movements such as the transfer of vehicles and equipment from sea to shore. These ships significantly reduce the dependency ...
By 1958, the number of submersible drilling rigs had increased to around 30. [2] In 1961, Shell Oil successfully converted an existing submersible rig Blue Water Rig No.1 into the first semi submersible drilling unit for operation in the Gulf of Mexico when it was found to have good stability and motions whilst being towed at a partial draught. [3]