|
Suction Bucket
Suction caissons (also referred to as suction anchors, suction piles or suction buckets) are a form of fixed platform anchor in the form of an open bottomed tube embedded in the sediment and sealed at the top while in use so that lifting forces generate a pressure differential that holds the caisson down. They have a number of advantages over conventional offshore foundations, mainly being quicker to install than deep foundation piles and being easier to remove during decommissioning. Suction caissons are now used extensively worldwide for anchoring large offshore installations, like oil platforms, offshore drillings and accommodation platforms to the seafloor at great depths. In recent years, suction caissons have also seen usage for offshore wind turbines in shallower waters. Oil and gas recovery at great depth could have been a very difficult task without the suction anchor technology, which was developed and used for the first time in the North Sea 30 years ago. The use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suction Caisson Installation
Suction is the colloquial term to describe the air pressure differential between areas. Removing air from a space results in a pressure differential. Suction pressure is therefore limited by external air pressure. Even a perfect vacuum cannot suck with more pressure than is available in the surrounding environment. Suctions can form on the sea, for example, when a ship founders. When the pressure in one part of a physical system is reduced relative to another, the fluid in the higher pressure region will exert a force relative to the region of lowered pressure, referred to as pressure-gradient force. Pressure reduction may be static, as in a piston and cylinder arrangement, or dynamic, as in the case of a vacuum cleaner when air flow results in a reduced pressure region. When animals breathe, the diaphragm and muscles around the rib cage cause a change of volume in the lungs. The increased volume of the chest cavity decreases the pressure inside, creating an imbalance with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure
Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country and even by industry. Further, both spellings are often used ''within'' a particular industry or country. Industries in British English-speaking countries typically use the "gauge" spelling. is the pressure relative to the ambient pressure. Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre (N/m2); similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and U.S. customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure, and the torr is defined as of this. Manometric u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Geotechnical Institute
Norwegian Geotechnical Institute ( no, Norges geotekniske institutt, NGI) is an independent international centre for research and consultancy in engineering-related geosciences, integrating geotechnical, geological and geophysical expertise. NGI is a national centre for geotechnical research and development. The research and development is conductet within geotechnics and associated disciplines create results in the form of new expertise, new methods and new technology, with expertise within material properties, modelling and analysis, and instrumentation and monitoring. NGI's strength lies in the expertise of its personnel working in collaboration with clients and partners. NGI is also the host of the International Centre for Geohazards (ICG), one of Norway's first Centres of Excellence (CoE). NGI's partners are NORSAR, the Norwegian Geological Survey (NGU), the University of Oslo (UiO) and the Norwegian University of Science and Technology Norwegian, Norwayan, or Norsk may ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saga Petroleum AS
is a series of science fantasy role-playing video games by Square Enix. The series originated on the Game Boy in 1989 as the creation of Akitoshi Kawazu at Square. It has since continued across multiple platforms, from the Super NES to the PlayStation 2. The series is notable for its emphasis on open world exploration, non-linear branching plots, and occasionally unconventional gameplay. This distinguishes the games from most of Square's other franchises. Development The ''SaGa'' series was created by game designer Akitoshi Kawazu, whose contributions prior to the franchise's introduction include ''Final Fantasy'' and ''Final Fantasy II''. At a time when Nintendo's Game Boy was becoming popular worldwide due to the puzzle game ''Tetris'', then-Square president Masashi Miyamoto requested that a development team create a game for the handheld console. Kawazu and fellow designer Koichi Ishii suggested that the company develop a role-playing video game, thus making ''Makai Tous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gorm Field
''Gorm'' is a natural gas and oilfield in the Danish Sector of North Sea that was discovered in 1971. It is the largest oilfield exploited by Denmark. The field consists of five platforms and is operated by TotalEnergies. The facilities include two wellhead platforms and several processing platforms. About of crude oil from the nearby ''Rolf'' oil field are processed on the ''Gorm'' platforms. The installations developed for the Gorm field were: An oil leak occurred in the field on 2 March 2011. See also * Tyra field * Dan oil field References External links ''The Gorm Centre'' Danish Energy Agency The Danish Energy Agency (Danish: Energistyrelsen) was established in 1976 as an agency of the Danish Ministry of Transport. It was part of the Ministry of Environment and Energy from 1994 to 2001. In 2007 it came under the newly created Danish Min ... Natural gas fields in Denmark Oil fields of Denmark North Sea energy Maersk Oil {{Gasfield-stub TotalEnergies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Dutch Shell
Shell plc is a British multinational oil and gas company headquartered in London, England. Shell is a public limited company with a primary listing on the London Stock Exchange (LSE) and secondary listings on Euronext Amsterdam and the New York Stock Exchange. It is one of the oil and gas "supermajors" and by revenue and profits is consistently one of the largest companies in the world. Measured by both its own emissions, and the emissions of all the fossil fuels it sells, Shell was the ninth-largest corporate producer of greenhouse gas emissions in the period 1988–2015. Shell was formed in 1907 through the merger of Royal Dutch Petroleum Company of the Netherlands and The "Shell" Transport and Trading Company of the United Kingdom. The combined company rapidly became the leading competitor of the American Standard Oil and by 1920 Shell was the largest producer of oil in the world. Shell first entered the chemicals industry in 1929. Shell was one of the " Seven Sisters" whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draupner Platform
__NOTOC__ The Draupner platform is a gas platform for the extraction of natural gas in the North Sea consisting of the Draupner S and E riser platforms. It is located in the Norwegian North Sea block 16/11 offshore from Norway. The complex consists of seven risers and two riser platforms standing in water depth and linked by a bridge. Draupner E is the first major oil platform using jacket-type construction supported on a bucket foundation and suction anchors. The complex is owned by Gassled and operated by Gassco. The technical service provider is Equinor. The Draupner platform is a key hub for monitoring pressure, volume and quality of gas flows in Norway's offshore gas pipelines. Draupner S was installed in 1984 as part of the Statpipe system. It connects the Statpipe lines from Heimdal and Kårstø for onward transmission to the Ekofisk oil field. In April 1985, first gas was transferred through the platform. Draupner E was installed in 1994 as part of the Europipe I pipe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finite Element Analysis
The finite element method (FEM) is a popular method for numerically solving differential equations arising in engineering and mathematical modeling. Typical problem areas of interest include the traditional fields of structural analysis, heat transfer, fluid flow, mass transport, and electromagnetic potential. The FEM is a general numerical method for solving partial differential equations in two or three space variables (i.e., some boundary value problems). To solve a problem, the FEM subdivides a large system into smaller, simpler parts that are called finite elements. This is achieved by a particular space discretization in the space dimensions, which is implemented by the construction of a mesh of the object: the numerical domain for the solution, which has a finite number of points. The finite element method formulation of a boundary value problem finally results in a system of algebraic equations. The method approximates the unknown function over the domain. The sim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mooring (watercraft)
A mooring is any permanent structure to which a vessel may be secured. Examples include quays, wharfs, jetties, piers, anchor buoys, and mooring buoys. A ship is secured to a mooring to forestall free movement of the ship on the water. An ''anchor mooring'' fixes a vessel's position relative to a point on the bottom of a waterway without connecting the vessel to shore. As a verb, ''mooring'' refers to the act of attaching a vessel to a mooring. The term likely stems from the Dutch verb ''meren'' (to ''moor''), used in English since the end of the 15th century. Permanent anchor mooring These moorings are used instead of temporary anchors because they have considerably more holding power, for example because of lesser damage to the marine environment, and are convenient. Where there is a row of moorings they are termed a tier. They are also occasionally used to hold floating docks in place. There are several kinds of moorings: Swing moorings Swing moorings also known a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand and silt can be carried in suspension in river water and on reaching the sea bed deposited by sedimentation; if buried, they may eventually become sandstone and siltstone (sedimentary rocks) through lithification. Sediments are most often transported by water (fluvial processes), but also wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice-transported sediments. Classification Sediment can be classified based on its grain size, grain shape, and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
