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Offshore installations refer to offshore platforms, oil platforms, and various types of offshore drilling rigs. It also is a general term for mobile and fixed maritime structures which includes facilities that are intended for exploration ; drilling ; the production, processing, or storage of hydrocarbons , and other related activities ...
The Lun-A (Lunskoye-A) platform, located off the north eastern coast of Sakhalin Island and is a concrete gravity base substructure (CGBS).. An oil platform (also called an oil rig, offshore platform, oil production platform, etc.) is a large structure with facilities to extract and process petroleum and natural gas that lie in rock formations beneath the seabed.
The inspection and repair of subsea BOPs are much more costly, and the consequences of failure potentially much worse. There are two variations of offshore BOP in use; the sub-sea blowout preventer which sits on the ocean floor, and the surface blowout preventer which sits between the riser pipe and the drilling platform. The surface unit is ...
Kelly hose (#9) is a flexible, high pressure hose that connects the standpipe to the kelly (or more specifically to the gooseneck on the swivel above the kelly) and allows free vertical movement of the kelly, while facilitating the flow of the drilling fluid through the system and down the drill string.
Offshore oil well drilling platform, Continental Oil Co., Gulf of Mexico, 1955. Around 1891, the first submerged oil wells were drilled from platforms built on piles in the fresh waters of the Grand Lake St. Marys in Ohio. The wells were developed by small local companies such as Bryson, Riley Oil, German-American and Banker's Oil. [2]
Perdido extracts oil from 35 subsea wells, of which 22 lie beneath the spar, while 13 wells are located eight miles west of the platform. These are connected via a 44 kilometre (27 mile) network of pipelines on the ocean floor the manifold below the platform, where the oil is pumped upwards in five flexible pipes called risers.
Specialist floating hotel vessels known as flotels or accommodation rigs are used to accommodate workers during the construction and hook-up phases. This is a high cost activity due to the limited space and access to materials. [clarification needed] Oil platforms are key fixed installations from which drilling and production activity is ...
Deepwater Horizon was an ultra-deepwater, dynamically positioned, semi-submersible offshore drilling rig [7] owned by Transocean and operated by the BP company. On 20 April 2010, while drilling in the Gulf of Mexico at the Macondo Prospect, a blowout caused an explosion on the rig that killed 11 crewmen and ignited a fireball visible from 40 miles (64 km) away. [8]