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Compliant Tower
A compliant tower (CT) is a fixed rig structure normally used for the offshore production of oil or gas. The rig consists of narrow, flexible (''compliant'') towers and a piled foundation supporting a conventional deck for drilling and production operations. Compliant towers are designed to sustain significant lateral deflections and forces, and are typically used in water depths ranging from 1,500 to 3,000 feet (450 to 900 m). These structures are considered freestanding but media supported (by water). They demonstrate static stability but have a much greater degree of lateral deformation/flexibility vs land-base structures, up to 2.5% vs 0.5% and are partially supported by buoyancy. It is unknown if these structures could support themselves as built if they were constructed on land. At present the deepest is the Chevron Petronius tower located in water 623m deep. With the use of flex elements such as flex legs or axial tubes, resonance is reduced and wave forces are de-ampli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Gas
Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium. Methane is a colorless and odorless gas, and, after carbon dioxide, is the second-greatest greenhouse gas that contributes to global climate change. Because natural gas is odorless, a commercial odorizer, such as Methanethiol (mercaptan brand), that smells of hydrogen sulfide (rotten eggs) is added to the gas for the ready detection of gas leaks. Natural gas is a fossil fuel that is formed when layers of organic matter (primarily marine microorganisms) are thermally decomposed under oxygen-free conditions, subjected to intense heat and pressure underground over millions of years. The energy that the decayed organisms originally obtained from the sun via photosynthesis is stored as chemical energy within the molecules of methane and other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tallest Freestanding Steel Structures
This is a list of tallest freestanding steel structures in the world past and present. To be a freestanding steel structure it must not be supported by guy wires, the list therefore does not include guyed masts and the main vertical and lateral structural elements and floor systems in the case of buildings, are constructed from steel. This type of construction is a rarity today as most tall buildings are built with a composite structure featuring a reinforced concrete core. Oil platforms built using rigid steel jackets, such as the Bullwinkle (oil platform), are included and ranked as the local medium(water) does not provide any horizontal support. In fact they are over engineered specifically to resist water forces them rather than modulate them as compliant towers are designed to do. Demolished structures and structures under construction are also included but not ranked. Steel Structures (above 275 m / 900 ft in height) indicates a structures no longer standing. indicates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tallest Oil Platforms
This is a list of the tallest oil platforms over in height. It includes compliant towers, condeep gravity-based structures, and fixed platforms, but not other Oil platform#Types, types of oil platform, which can be much taller (see Oil platform#Deepest platforms by type). The current highest oil platform among these types is the Petronius (oil platform), Petronius platform operated by Chevron Corporation and Marathon Oil in the Gulf of Mexico, 210 km southeast of New Orleans, United States. References {{supertall, state=collapsed Lists of tallest structures, Oil platforms Oil platforms, Tallest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Platform
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. Many oil platforms will also have facilities to accommodate the workers, although it is also common to have a separate accommodation platform linked by bridge to the production platform. Most commonly, oil platforms engage in activities on the continental shelf, though they can also be used in lakes, inshore waters, and inland seas. Depending on the circumstances, the platform may be fixed to the ocean floor, consist of an artificial island, or float. In some arrangements the main facility may have storage facilities for the processed oil. Remote subsea wells may also be connected to a platform by flow lines and by umbilical connections. These sub-sea facilities may include one or more subsea wells or manifold centres for multiple wells. Offshore drillin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benguela Belize Tower Base During Launch
Benguela (; Umbundu: Luombaka) is a city in western Angola, capital of Benguela Province. Benguela is one of Angola's most populous cities with a population of 555,124 in the city and 561,775 in the municipality, at the 2014 census. History Portuguese rule Benguela was founded in 1617 as ''São Felipe de Benguela'' by the Portuguese under Manuel Cerveira Pereira, 8th Governor of Angola (1604–1607). It was long the centre of an important trade, especially in slaves to Brazil and Cuba. Ships anchored about off the shore, in depths of and transferred loads to smaller boats which used five or six jetties in the town. However, the nearby deep-water sheltered harbour of Lobito was a much larger port. Besides the churches of S. Felipe and S. António, the hospital, and the fortress, as of 1911 there were only a few stone-built houses. A short way beyond Benguela is Baía Farta, where salt was manufactured and sulphur was extracted. Close to Baia Farta was the beach of Baia A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
