Semi-submersible
Encyclopedia
Seakeeping
Seakeeping ability is a measure of how well-suited a watercraft is to conditions when underway. A ship or boat which has good seakeeping ability is said to be very seaworthy and is able to operate effectively even in high sea states....
characteristics. The semi-submersible vessel design is commonly used in a number of specific offshore roles such as for offshore drilling rigs
Offshore drilling
Offshore drilling refers to a mechanical process where a wellbore is drilled through the seabed. It is typically carried out in order to explore for and subsequently produce hydrocarbons which lie in rock formations beneath the seabed...
, safety vessels, oil production platforms and heavy lift cranes.
The terms semisubmersible, semi-sub or just semi are also generally used for this vessel design.
Characteristics
Offshore drilling in water depth greater than around 120 meters requires that operations be carried out from a floating vessel, as fixed structures are not practical. Initially in the early 1950s monohull ships were used like CUSS I, but these were found to have significant heave, pitch and yaw motions in large waves, and the industry needed more stable drilling platforms.A semi-submersible obtains its buoyancy from ballasted, watertight pontoons
Floats (nautical)
Floats are airtight hollow structures, similar to pressure vessels, whose air-filled interior makes them buoyant in water. They are most often used to make up the multipart hulls of trimarans, small open catamarans, and floatplanes . Their main purpose is to supply buoyancy, not storage space...
located below the ocean surface and wave action. The operating deck can be located high above the sea level due to the good stability of the concept, and therefore the operating deck is kept well away from the waves. Structural columns connect the pontoons and operating deck.
With its hull structure submerged at a deep draft, the semi-submersible is less affected by wave loadings than a normal ship. With a small water-plane area, however, the semi-submersible is sensitive to load changes, and therefore must be carefully trimmed to maintain stability. Unlike a submarine
Submarine
A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...
or submersible
Submersible
A submersible is a small vehicle designed to operate underwater. The term submersible is often used to differentiate from other underwater vehicles known as submarines, in that a submarine is a fully autonomous craft, capable of renewing its own power and breathing air, whereas a submersible is...
, during normal operations, a semi-submersible vessel is never entirely underwater.
A semi-submersible vessel is able to transform from a deep to a shallow draft
Draft (hull)
The draft of a ship's hull is the vertical distance between the waterline and the bottom of the hull , with the thickness of the hull included; in the case of not being included the draft outline would be obtained...
by deballasting (removing ballast water from the hull), and thereby become a surface vessel. The heavy lift vessels use this capability to submerge the majority of their structure, locate beneath another floating vessel, and then deballast to pick up the other vessel as a cargo.
Early history
Oil platform
An oil platform, also referred to as an offshore platform or, somewhat incorrectly, oil rig, is a lаrge structure with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for refining and marketing...
activities. Bruce Collipp of Shell
Royal Dutch Shell
Royal Dutch Shell plc , commonly known as Shell, is a global oil and gas company headquartered in The Hague, Netherlands and with its registered office in London, United Kingdom. It is the fifth-largest company in the world according to a composite measure by Forbes magazine and one of the six...
is regarded as the inventor.
But Edward Robert Armstrong
Edward Robert Armstrong
Edward Robert Armstrong was a Canadian born engineer and inventor who in 1927 proposed a series of "seadrome" floating airport platforms for airplanes to land on and refuel for transatlantic flights...
may have paved the way with his idea of 'seadrome' landing strips for airplanes in the late 1920s, since his idea involved the same use of columns on ballast tanks below the surface and anchored to the ocean floor by steel cables.
When oil drilling moved into offshore waters, fixed platform rigs and submersible rigs
Submersible drilling rig
A submersible drilling rig is a marine vessel design that can be floated to location and lowered onto the sea floor for offshore drilling activities.-Design and operation:The submersible drilling platform is supported on large pontoon-like structures...
were built, but were limited to shallow waters. When demands for drilling equipment was needed in water depths greater than 100 feet (30 m) in the Gulf of Mexico
Gulf of Mexico
The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...
, the first jackup rig
Jackup rig
A jack-up rig is a type of mobile platform that is able to stand still on the sea floor, resting on a number of supporting legs. The most popular designs use 3 independent legs, although some jackups have 4 legs or more...
s were built.
The first semisubmersible arrived by accident in 1961. Blue Water Drilling Company owned and operated the four column submersible drilling rig
Submersible drilling rig
A submersible drilling rig is a marine vessel design that can be floated to location and lowered onto the sea floor for offshore drilling activities.-Design and operation:The submersible drilling platform is supported on large pontoon-like structures...
Blue Water Rig No.1 in the Gulf of Mexico for Shell Oil Company
Royal Dutch Shell
Royal Dutch Shell plc , commonly known as Shell, is a global oil and gas company headquartered in The Hague, Netherlands and with its registered office in London, United Kingdom. It is the fifth-largest company in the world according to a composite measure by Forbes magazine and one of the six...
. As the pontoons
Pontoon (boat)
A pontoon is a flotation device with buoyancy sufficient to float itself as well as a heavy load. A pontoon boat is a flattish boat that relies on pontoons to float. Pontoons may be used on boats, rafts, barges, docks, floatplanes or seaplanes. Pontoons may support a platform, creating a raft. A...
were not sufficiently buoyant to support the weight of the rig and its consumables, it was towed between locations at a draught mid way between the top of the pontoons and the underside of the deck. It was observed that the motions at this draught were very small and Blue Water Drilling and Shell jointly decided that the rig could be operated in the floating mode.
The first purpose built drilling semi-submersible Ocean Driller was launched in 1963. Since then, many semi-submersibles have been purpose-designed for the drilling industry mobile offshore fleet.
The industry quickly accepted the semi-submersible concept and the fleet increased rapidly to 30 units by 1972.
Mobile offshore drilling units (MODU)
Semi-submersible rigs make stable platforms for drilling for offshore oil and gas. They can be towed into position by a tugboatTugboat
A tugboat is a boat that maneuvers vessels by pushing or towing them. Tugs move vessels that either should not move themselves, such as ships in a crowded harbor or a narrow canal,or those that cannot move by themselves, such as barges, disabled ships, or oil platforms. Tugboats are powerful for...
and anchored, or moved by and kept in position by their own azimuth thruster
Azimuth thruster
An azimuth thruster is a configuration of ship propellers placed in pods that can be rotated in any horizontal direction, making a rudder unnecessary...
s with dynamic positioning
Dynamic positioning
Dynamic positioning is a computer controlled system to automatically maintain a vessel's position and heading by using its own propellers and thrusters...
.
Drilling rig construction has historically occurred in boom periods and therefore 'batches' of drilling rigs have been built. Offshore drilling rigs have been classified in nominal 'generations' depending upon the year built and water depth capability as follows;
| Generation | Water Depth | Dates | |
|---|---|---|---|
| First | about 600 ft | 200 m | Early 1960s |
| Second | about 1000 ft | 300 m | 1969–1974 |
| Third | about 1500 ft | 500 m | Early 1980s |
| Fourth | about 3000 ft | 1000 m | 1990's |
| Fifth | about 7500 ft | 2500 m | 1998–2004 |
| Sixth | about 10000 ft | 3000 m | 2005–2010 |
The IMO
International Maritime Organization
The International Maritime Organization , formerly known as the Inter-Governmental Maritime Consultative Organization , was established in Geneva in 1948, and came into force ten years later, meeting for the first time in 1959...
MODU Code is an accredited design and operational guideline for Mobile Offshore Drilling Units of the semi-submersible type.
Semi-submersible crane vessels (SSCV)
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Offshore construction
Offshore construction is the installation of structures and facilities in a marine environment, usually for the production and transmission of electricity, oil, gas and other resources....
when in 1978 Heerema Marine Contractors
Heerema Marine Contractors
Heerema Marine Contractors is a contractor most notable for operation of three of the largest crane vessels in the offshore industry.-History:...
constructed the two sister crane vessel
Crane vessel
A crane vessel, crane ship or floating crane is a ship with a crane specialized in lifting heavy loads. The largest crane vessels are used for offshore construction. Conventional monohulls are used, but the largest crane vessels are often catamaran or semi-submersible types as they have increased...
s called Balder
DCV Balder
DCV Balder is a Deepwater Construction Vessel operated by Heerema Marine Contractors.-History:The Balder was constructed in 1978 as semi-submersible crane vessel by Mitsui Engineering & Shipbuilding Co., Ltd.. Balder and sister vessel, Hermod were the world's first semi-submersible crane vessels...
and Hermod
Hermod (ship)
SSCV Hermod is a semi-submersible crane vessel operated by Heerema Marine Contractors.-History:Semi submersible crane vessel Hermod was constructed in 1979 by Mitsui Engineering & Shipbuilding Co., Ltd.. Hermod and sister vessel, Balder were the world's first semi-submersible crane vessels...
. These semi-submersible crane vessels (SSCV) consist of two lower hulls (pontoons), three columns on each pontoon and an upper hull. Shortly after J. Ray McDermott
J. Ray McDermott
McDermott International is an international engineering company specialized on marine solutions with operations in the Americas, Middle East, the Caspian Sea, and the Pacific Rim...
and Saipem
Saipem
Saipem S.p.A. is an Italian oil and gas industry contractor. It is a subsidiary of Italian energy company Eni, which owns approximately 43% of Saipem's shares. Saipem has contracted for designing and constructing several pipelines, including Blue Stream, Greenstream, Nord Stream and South...
also introduced SSCV's, resulting in two new enormous vessels DB-102 (now Thialf
SSCV Thialf
SSCV Thialf is a semi-submersible crane vessel operated by Heerema Marine Contractors, the largest crane vessel in the world.-History:SSCV Thialf was constructed in 1985 as DB-102 for McDermott by Mitsui Engineering & Shipbuilding Co., Ltd...
) and Saipem 7000
Saipem 7000
Saipem 7000 is the world's second largest crane vessel, after the Thialf. The crane radius of the Saipem 7000 grants a lifting capability of 14,000 tonnes at 42 meters while the Thialf can lift 14,200 tonnes at 31.2 meters...
, capable of lifting respectively 14,200 and 14,000 tons.
During transit an SSCV will be de-ballasted to a draught where only part of the lower hull is submerged. During lifting operations, the vessel will be ballasted down. This way, the lower hull is well submerged. This reduces the effect of waves and swell. High stability is obtained by placing the columns far apart. The high stability allows them to lift extreme high loads.
Offshore support vessels (OSV)
Semi-submersibles are particularly suited to a number of offshore support vessel roles because of their good stability, large deck areas, and variable deck load (VDL). Some of the most prominent vessels are;- Uncle John – Diving / Construction support vessel, built for Houlder Offshore in 1977
- Seaway Swan – Diving Support VesselDiving support vesselA diving support vessel is a ship that is used as a floating base for professional diving projects.Commercial Diving Support Vessels emerged during the 1960s and 1970s when the need arose for diving operations to be performed below and around oil production platforms and associated installations in...
built in 1977 - Tharos – Offshore Safety support vessel, built in 1979 and since converted into a drilling vessel, and rechristened Transocean Marianas.
- Stadive – Diving Support Vessel (DSV) built for ShellRoyal Dutch ShellRoyal Dutch Shell plc , commonly known as Shell, is a global oil and gas company headquartered in The Hague, Netherlands and with its registered office in London, United Kingdom. It is the fifth-largest company in the world according to a composite measure by Forbes magazine and one of the six...
in 1982 - IolairIolairIolair is a specialised semi-submersible offshore platform designed for BP to support and service oil platforms in the North Sea and served as an emergency support vessel in the Forties Oil Field...
– Offshore safety support vessel, built for BPBPBP p.l.c. is a global oil and gas company headquartered in London, United Kingdom. It is the third-largest energy company and fourth-largest company in the world measured by revenues and one of the six oil and gas "supermajors"...
in 1982 - Safe Karinia – Offshore operations vessel, built in 1982
- Polyconfidence – Offshore accommodation platform, built in 1988.
- Q4000 – Offshore Multiservice Vessel, built for Caldive in 2002
- Ocean OdysseyOcean Odyssey|-External links:*...
– Converted semi-submersible drilling rig used as a rocket launch pad.
Offshore production platforms
When oil fields were first developed in offshore locations, drilling semi-submersibles were converted for use as combined drilling and production platforms. These vessels offered very stable and cost effective platforms. 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 has progressed into deeper water and harsh environments, purpose-built production semi-submersible platforms were designed. The first purpose-built semi-submersible production platform was for the Balmoral field, UK North Sea in 1986.
A summary of offshore semi-submersible oil production platforms is given in the following table derived from industry data.
| Vessel | Field | Region | Depth (m) | Displacement (Te) | Operator | Startup | Hull designer | Hull builder | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Argyll FPU | Argyll Oil Field | UK North Sea North Sea In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively... |
150 | 34,000 | Agip Agip Agip is an Italian automotive gasoline and diesel retailer established in 1926. It is a subsidiary of the multinational petroleum company Eni.In 2003, Eni S.p.A... |
1975 | Converted from Transocean 58 MODU. First semi-submersible production platform. | ||
| Buchan A | Buchan oil field Buchan oil field The Buchan oil field is a small oil field with small gas reserves in the central North Sea. It lies in an area known as the South Halibut Basin, approximately northeast of Aberdeen, Scotland, and is located mainly in license block 21/1A, extending into block 20/5A... |
UK North Sea North Sea In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively... |
160 | 18,995 | Talisman Talisman Energy Talisman Energy Inc. is one of Canada's largest petroleum SB companies. Based in Calgary, Alberta, Talisman Energy has operations around the globe including: Canada and the United States of America in North America; Colombia and Peru in South America; Algeria in North Africa; United Kingdom,... |
1981 | CFEM | CFEM Le Havre - converted Aker Offshore Stornoway | Converted from Drillmaster MODU for BP BP BP p.l.c. is a global oil and gas company headquartered in London, United Kingdom. It is the third-largest energy company and fourth-largest company in the world measured by revenues and one of the six oil and gas "supermajors"... |
| P-09 | Corvina Oil Field | Brazil | 230 | 22,896 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1983 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Mitsui Mitsui is one of the largest corporate conglomerates in Japan and one of the largest publicly traded companies in the world.-History:Founded by Mitsui Takatoshi , who was the fourth son of a shopkeeper in Matsusaka, in what is now today's Mie prefecture... |
Conversion Aker H-3e design drilling rig |
| P-15 | Pirauna | Brazil | 243 | 21,616 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1983 | Mitsubishi Heavy Industries Mitsubishi Heavy Industries , or MHI, is a Japanese company. It is one of the core companies of Mitsubishi Group.-History:In 1870 Yataro Iwasaki, the founder of Mitsubishi took a lease of Government-owned Nagasaki Shipyard. He named it Nagasaki Shipyard & Machinery Works, and started the shipbuilding business on a full scale... |
Mitsubishi Heavy Industries Mitsubishi Heavy Industries , or MHI, is a Japanese company. It is one of the core companies of Mitsubishi Group.-History:In 1870 Yataro Iwasaki, the founder of Mitsubishi took a lease of Government-owned Nagasaki Shipyard. He named it Nagasaki Shipyard & Machinery Works, and started the shipbuilding business on a full scale... |
Conversion Mitsubishi MD-503 design |
| P-12 | Linguado / Badejo Oil Field | Brazil | 100 | 22,896 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1984 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Mitsui Mitsui is one of the largest corporate conglomerates in Japan and one of the largest publicly traded companies in the world.-History:Founded by Mitsui Takatoshi , who was the fourth son of a shopkeeper in Matsusaka, in what is now today's Mie prefecture... , Japan |
Aker H-3e design |
| P-21 | Badejo / Salema Oil Fields | Brazil | 112 | 10,765 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1984 | Earl & Wright | Montreal Engineering, Rio de Janeiro | Conversion of Sedco Staflo drilling rig |
| Deepsea Pioneer FPU | Argyll & Duncan Oil Fields | UK North Sea North Sea In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively... |
150 | 34,000 | Agip Agip Agip is an Italian automotive gasoline and diesel retailer established in 1926. It is a subsidiary of the multinational petroleum company Eni.In 2003, Eni S.p.A... |
1984 | Converted from Deepsea Saga drilling rig | ||
| P-22 | Morela | Brazil | 114 | 17,440 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1986 | Frede & Goldman | Montreal Engineering | Conversion of drilling rig Sedco 135F |
| Balmoral FPV | Balmoral (+4 satellites) Oil Field | UK North Sea North Sea In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively... |
150 | 30,983 | Premier Oil Premier Oil Premier Oil plc is an independent British UK oil company with gas and oil interests in the UK, Asia and Africa. It is devoted entirely to the 'upstream' sector of the industry - the exploitation of oil and gas - as opposed to the 'downstream' refining and retail sector... |
1986 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
Götaverken, Sweden Götaverken Götaverken was a shipbuilding company that was located on Hisingen, Gothenburg. It was founded in 1841, and went bankrupt in 1989.The company was founded in 1841 by a Scottish businessman called Alexander Keiller under the name Keillers Werkstad i Göteborg, and was aimed at industrial production... |
First purpose built production semi-submersible. |
| P-07 | Bicudo Oil Field | Brazil | 207 | 20,493 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1988 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Raumer-Repola STX Finland Cruise Oy STX Finland Cruise Oy, formerly Aker Yards Oy, is a Finnish shipbuilding company operating three shipyards in Finland, in Helsinki, Turku and Rauma, employing some 4,000 people. It is part of STX Europe a group of International shipbuilding companies.... or Ishibras Shipyard, Rio ? |
Converted from Aker H-3 drilling rig Bendoran |
| Veslefrikk B | Veslefrikk Oil Field | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
175 | 43,305 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
1989 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Daewoo, Korea Daewoo Shipbuilding & Marine Engineering Daewoo Shipbuilding & Marine Engineering Co., Ltd ' is the second largest shipbuilder in the world and one of the "Big Three" shipbuilders of South Korea.On 21 February 2011, the A. P... |
Converted from West Vision drilling semi. First floating production facility in Norway. |
| AH001 | Ivan Hoe Rob Roy Oil Field | UK North Sea North Sea In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively... |
140 | 26,639 | Amerada Hess Hess Hess or Heß may refer to:* People with the surname Hess * Hess Educational Organization, the largest private provider of English instruction in the Republic of China... |
1989 | Brown & Root | Highland Fabricators, Nigg | Converted from Philips SS Sedco700 drilling vessel |
| P-20 | Marlim Marlim Marlim is the name of a giant Brazilian oil field located in the north-eastern part of Campos Basin, about 110 km offshore Rio de Janeiro, in water depths ranging from 650m to 1,050m. Marlim means Marlin, in Portuguese.... |
Brazil | 625 | 25,983 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1992 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
Astileros, Spain | GVA4000 design. Converted from Russian built Illiad drilling semi. |
| P-08 | Marimba Oil Field | Brazil | 423 | 20,990 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1993 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
Tangenge, Niteroi, Brazil | Converted drilling rig Songa Star / Belford Dolphin |
| P-13 | Bijupira / Salema Oil Field | Brazil | 625 | 22,243 | Queriz Galvao Perfuracoes | 1993 | CFEM | UIE, Clydesbank ? | Conversion |
| P-14 | Coral / Esrela / Caravela Oil Fields | Brazil | 195 | 22,243 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1993 | CFEM | CFEM, Brazil ? | Conversion |
| P-18 | Marlim Marlim Marlim is the name of a giant Brazilian oil field located in the north-eastern part of Campos Basin, about 110 km offshore Rio de Janeiro, in water depths ranging from 650m to 1,050m. Marlim means Marlin, in Portuguese.... |
Brazil | 910 | 36,100 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1994 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
Tenege / FELS | GVA4500 design |
| Troll B FPU | Troll gas field | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
339 | 188,968 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
1995 | Kvaerner/Doris Doris - Geography :* Doris , region of Asia Minor inhabited by Dorians* Doris , region in central Greece in which the Dorians had their traditional homeland* Doris, Iowa, USA- People :* Doris, mother of Antipater... |
Kvaerner Rosenberg | Concrete construction. |
| Nan Hai Tiao Zhan | Luihua | South China Sea | 300 | 0,000 | CNOOC | 1995 | Reading & Bates Transocean Transocean Ltd. is one of the world's largest offshore drilling contractors. The company rents floating mobile drill rigs, along with the equipment and personnel for operations, to oil and gas companies at an average daily rate of US$282,700... |
Keppel FELS | Converted Sedco700 drilling rig West Stadrill for Amoco Amoco Amoco Corporation, originally Standard Oil Company , was a global chemical and oil company, founded in 1889 around a refinery located in Whiting, Indiana, United States.... |
| P-25 | Albacora II Oil Field | Brazil | 252 | 25,983 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1996 | CENPES | Ultratec | Conversion of Zapat-4000 drilling rig |
| P-27 | Voador | Brazil | 533 | 41,659 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1996 | FELS / Obdebrecht | Levingston Levingston Levingston is a family name that may refer to:* Bashir Levingston , football cornerback and kick returner* Cliff Levingston , former professional basketball player* James Levingston, 1st Earl of Newburgh , Scottish peer... |
Conversion of Penrod drilling rig Pardill 71 |
| Innovator | Marlim | Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In... |
914 | 0,000 | ATP ATP Oil and Gas ATP Oil & Gas Corporation is a Houston, Texas based company that develops and produces oil and natural gas in the Gulf of Mexico and the North Sea. It specializes in developing reserves. ATP trades on the NASDAQ Global Select Market under the symbol ATPG.... |
1996 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
||
| Tahara | PY-3 | Indian Ocean Indian Ocean The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and... |
339 | 55,000 | Hardy oil and gas Hardy Oil and Gas Hardy Oil and Gas plc is a leading British-based oil and gas exploration and production business. It is headquartered in London and is a former constituent of the FTSE 250 Index.-History:... |
1997 | Earl & Wright | Hup Seng Engineering | Conversion Sedco-135 design |
| Njord A | Njord Oil Field | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
330 | 45,077 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
1997 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Aker Verdal | Originally built for Norsk Hydro Hydro Oil & Gas Hydro Oil & Gas is a defunct division of Norsk Hydro that operated within the oil and gas industry. On October 1, 2007 it merged with Statoil to form the new corporation StatoilHydro.-Operations:... Design based on P-45 ? |
| P-19 | Marlim Marlim Marlim is the name of a giant Brazilian oil field located in the north-eastern part of Campos Basin, about 110 km offshore Rio de Janeiro, in water depths ranging from 650m to 1,050m. Marlim means Marlin, in Portuguese.... |
Brazil | 770 | 33,400 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
1997 | IVI/Sadevegesa consortium | Hitachi Zosen | Converted from Enchanced pacesetter drilling rig. |
| Janice A | Janice Oil Field | UK North Sea North Sea In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively... |
80 | 0,000 | Anadarko Anadarko Anadarko may refer to:* Anadarko, Oklahoma* Anadarko Basin, a geologic depositional and structural basin centered in the western part of the state of Oklahoma and the Texas Panhandle, and extending into western Kansas and southeast Colorado... |
1999 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
McNulty McNulty McNulty is an Irish surname. Spelling variations include: McAnulty and McNull among others. Modern spelling comes from the original Irish Mac an Ultaigh.... |
Converted from Aker H3.2 drilling vessel |
| Visund | Visund | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
335 | 52,600 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
1999 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
Umoe Mandal Umoe Mandal Umoe Mandal AS is a shipbuilding company in the Ulltveit-Moe Group. Their shipyards are based at Mandal in Norway.Founded in 1989 as Kværner Båtservice, later Kværner Mandal, and known as Umoe Mandal since 2000, the company specialises in high-speed naval vessels, mine countermeasure vessels and... |
GVA8000 design |
| Troll C FPU | Troll gas field | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
339 | 54,377 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
1999 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
HHI, S.Korea Hyundai Heavy Industries Hyundai Heavy Industries Co., Ltd. is the world's largest shipbuilding company, headquartered in Ulsan, South Korea. The company is a subsidiary of Hyundai Heavy Industries Group... |
GVA 8000 design |
| P-26 | Marlim Marlim Marlim is the name of a giant Brazilian oil field located in the north-eastern part of Campos Basin, about 110 km offshore Rio de Janeiro, in water depths ranging from 650m to 1,050m. Marlim means Marlin, in Portuguese.... |
Brazil | 515 | 27,656 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2000 | Astilleros | Astilleros, Spain | Conversion |
| Åsgard B | Åsgard | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
320 | 84,848 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
2000 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
Daewoo, S. Korea Daewoo Daewoo or the Daewoo Group was a major South Korean chaebol . It was founded on 22 March 1967 as Daewoo Industrial and was dismantled by the Korean government in 1999... |
|
| P-36 Petrobras 36 Oil Platform Petrobras 36 was at the time the largest floating semi-submersible oil platform in the world prior to its sinking on 20 March 2001. It was owned by Petrobras, a semi-public Brazilian oil company headquartered in Rio de Janeiro... |
Roncador | Brazil Campos Basin | 1,360 | 0,000 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2000 | SBM Atlantia SBM Offshore SBM Offshore N.V. is a Dutch-based global group of companies selling systems and services to the offshore oil and gas industry. Its constituent companies started their offshore activities in the early 1950s and SBM subsequently became a pioneer in single point mooring systems... |
Davie Shipbuilding, Canada Davie Shipbuilding Davie Shipbuilding is a historic shipbuilding company located in Lauzon, Quebec. The facility has undergone restructuring and is currently operating as Davie Yards Incorporated.-History:... |
Converted from drilling rig Spirit of Columbus and sank in 2001 |
| Snorre B FDPU | Snorre Oil Field | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
350 | 56,600 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
2001 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Dragados | Originally built for Saga Saga Petroleum Saga Petroleum was a Norwegian upstream petroleum company established in 1972 that was acquired by Norsk Hydro in 1999. Since October 2007 it is a part of Statoil. The company was the only fully private oil company in Norway. It had partial ownership in 60 oil field licenses and was operator of 18... |
| P-51 | Marlim Sul Oil Field | Brazil Campos Basin | 1,255 | 80,114 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2001 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Keppel FELS | Aker DDS design |
| SS-11 | Coral | Brazil | 145 | 0,000 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2003 | Breit Breit Breit may refer to:* Breit, a municipality in Rhineland-Palatinate, Germany* Breit equation* Relativistic Breit-Wigner distribution* Breit Rabi Oscillation, Rabi cycle- Persons with the surname Breit :* Franz Breit , Obstetrician... |
Bethlehem Steel Bethlehem Steel The Bethlehem Steel Corporation , based in Bethlehem, Pennsylvania, was once the second-largest steel producer in the United States, after Pittsburgh, Pennsylvania-based U.S. Steel. After a decline in the U.S... |
Conversion |
| Nakika | Kepler, Ariel, Fourier, Herschell & E. Anstey | Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In... |
936 | 64,000 | BP BP BP p.l.c. is a global oil and gas company headquartered in London, United Kingdom. It is the third-largest energy company and fourth-largest company in the world measured by revenues and one of the six oil and gas "supermajors"... |
2003 | ABB Lumus | HHI, S.Korea Hyundai Heavy Industries Hyundai Heavy Industries Co., Ltd. is the world's largest shipbuilding company, headquartered in Ulsan, South Korea. The company is a subsidiary of Hyundai Heavy Industries Group... |
Constructed for Shell, but operated by BP |
| P-40 | Marlim Sul | Brazil | 1,080 | 0,000 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2004 | PROJEMAR | Jurong SembCorp Marine Sembcorp Marine Limited is part of SembCorp Industries, an Asian company based in Singapore. It is listed on the Singapore stock exchange or SGX and is part of the Straits Times Index there... |
Conversion of DB-100 design drilling rig |
| Kristin FPU | Kristin | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
320 | 56,600 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
2005 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
Samsung, S. Korea Samsung Heavy Industries Samsung Heavy Industries or SHI is one of the largest shipbuilders in the world and one of the "Big Three" shipbuilders of South Korea... |
|
| Atlantis PQ Atlantis PQ Atlantis PQ is a BP plc and BHP Billiton joint venture semi-submersible oil platform on permanent location over the Green Canyon Atlantis Oil Field in deepwater Gulf of Mexico, south of New Orleans. The "PQ" identifies the platform as being a production facility with crew quarters.The vessel's... |
Atlantis Oil Field Atlantis Oil Field The Atlantis oil field is the third largest oil field in the Gulf of Mexico. The field was discovered in 1998 and is located at the Green Canyon blocks 699, 700, 742, 743, and 744 in United States federal waters in the Gulf of Mexico about from the coast of Louisiana... |
Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In... |
2,156 | 89,000 | BP BP BP p.l.c. is a global oil and gas company headquartered in London, United Kingdom. It is the third-largest energy company and fourth-largest company in the world measured by revenues and one of the six oil and gas "supermajors"... |
2006 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
DSME, S.Korea | |
| ATP Innovator | Gomez Oil Field | Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In... |
914 | 46,160 | ATP ATP Oil and Gas ATP Oil & Gas Corporation is a Houston, Texas based company that develops and produces oil and natural gas in the Gulf of Mexico and the North Sea. It specializes in developing reserves. ATP trades on the NASDAQ Global Select Market under the symbol ATPG.... |
2006 | Levingston Levingston Levingston is a family name that may refer to:* Bashir Levingston , football cornerback and kick returner* Cliff Levingston , former professional basketball player* James Levingston, 1st Earl of Newburgh , Scottish peer... |
Levingston Levingston Levingston is a family name that may refer to:* Bashir Levingston , football cornerback and kick returner* Cliff Levingston , former professional basketball player* James Levingston, 1st Earl of Newburgh , Scottish peer... |
Converted from Rowan Midland semi-sub |
| Independence Hub | 10 fields | Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In... |
2,015 | 46,160 | Anadarko Anadarko Anadarko may refer to:* Anadarko, Oklahoma* Anadarko Basin, a geologic depositional and structural basin centered in the western part of the state of Oklahoma and the Texas Panhandle, and extending into western Kansas and southeast Colorado... |
2007 | SBM Atlantia SBM Offshore SBM Offshore N.V. is a Dutch-based global group of companies selling systems and services to the offshore oil and gas industry. Its constituent companies started their offshore activities in the early 1950s and SBM subsequently became a pioneer in single point mooring systems... |
Jurong Shipyard SembCorp Marine Sembcorp Marine Limited is part of SembCorp Industries, an Asian company based in Singapore. It is listed on the Singapore stock exchange or SGX and is part of the Straits Times Index there... |
|
| P-52 | Roncador | Brazil | 1,795 | 80,201 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2007 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Keppel FELS | Aker DDS design |
| Thunder Horse PDQ Thunder Horse PDQ 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 , in deepwater Gulf of Mexico, southeast of New Orleans, moored in waters of... |
Thunder Horse Oil Field | Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In... |
1,849 | 130,000 | BP BP BP p.l.c. is a global oil and gas company headquartered in London, United Kingdom. It is the third-largest energy company and fourth-largest company in the world measured by revenues and one of the six oil and gas "supermajors"... |
2008 | GVA GVA Consultants GVA Consultants is a Swedish marine and offshore engineering company specialising in the design of offshore structures, and semi-submersible platforms.-History:The experience of GVA as a marine engineering company stretches back more than 25 years... |
DSME, S.Korea | GVA40000 design, largest semi-submersible platform |
| Blind Faith | Blind Faith | Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In... |
1,980 | 40,000 | ChevronTexaco | 2008 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Aker Verdal | Aker DDS design |
| Northern Producer FPF | was at Galley Oil Field now at Don Oil Field | UK North Sea North Sea In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively... |
350 | 0,000 | Petrofac Petrofac Petrofac is an international provider of integrated facilities services to the oil, gas and energy production and processing industries. It is registered in Jersey , with its main corporate office in Jermyn Street, London. In addition it has major offices in Aberdeen, Mumbai, and Sharjah, and a... |
2009 | Granhearne KBR KBR can stand for:* KBR - American engineering and construction company* Key-based routing* Royal Library of Belgium* The ISO 639 linguistic identifier code for the Ethiopian language Kaffa .... |
McNulty McNulty McNulty is an Irish surname. Spelling variations include: McAnulty and McNull among others. Modern spelling comes from the original Irish Mac an Ultaigh.... , Newcastle |
Re-use of Emerald Producer FPU, originally converted from Aker H-3 vessel Alibaba in 1989. |
| Thunder Hawk | Thunder Hawk | Gulf of Mexico | 1740 | 42,000 | Murphy Murphy Murphy is an Anglicized version of two Irish surnames: Ó Murchadha/Ó Murchadh , and Mac Murchaidh/Mac Murchadh derived from the Irish personal name Murchadh, which meant "sea-warrior" or "sea-battler"... |
2009 | SBM Atlantia SBM Offshore SBM Offshore N.V. is a Dutch-based global group of companies selling systems and services to the offshore oil and gas industry. Its constituent companies started their offshore activities in the early 1950s and SBM subsequently became a pioneer in single point mooring systems... |
Dyna-Mac Engineering Services Pte Ltd | |
| Gjøa | Gjøa Oil Field | Norwegian Sea Norwegian Sea The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway. It is located between the North Sea and the Greenland Sea and adjoins the North Atlantic Ocean to the west and the Barents Sea to the northeast. In the southwest, it is separated from the Atlantic Ocean by a... |
360 | 58,400 | Statoil Statoil Statoil ASA is a Norwegian petroleum company established in 1972. It merged with Norsk Hydro in 2007 and was known as StatoilHydro until 2009, when the name was changed back to Statoil ASA. The brand Statoil was retained as a chain of fuel stations owned by StatoilHydro... |
2010 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Samsung, S. Korea Samsung Heavy Industries Samsung Heavy Industries or SHI is one of the largest shipbuilders in the world and one of the "Big Three" shipbuilders of South Korea... |
To be operated by Gas de France |
| P-56 | Marlim Sul | Brazil | 1,700 | 50,000 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2010 | Aker Aker Aker is a surname.Aker can also refer to:In places:* Aker, Norway, a former municipality in NorwayIn other uses:* Aker , mentioned only in the Greek Apocalypse of Ezra* Aker , a god in ancient Egyptian mythology... |
Keppel FELS | Copy of P-51 platform. Aker DDS design built in Brazil. |
| Gumusut-Kakap | Pisigan, Malilai, Ubah | Malaysia | 1,220 | 40,000 | Sabah Shell Petroleum Company | 2012 | MMHE, Malaysia Malaysia Marine and Heavy Engineering Malaysia Marine and Heavy Engineering is a company involved primarily in the marine and heavy engineering industries. It was formerly known as Malaysia Shipyard and Engineering Sdn Bhd.... |
MMHE, Malaysia Malaysia Marine and Heavy Engineering Malaysia Marine and Heavy Engineering is a company involved primarily in the marine and heavy engineering industries. It was formerly known as Malaysia Shipyard and Engineering Sdn Bhd.... and MMHE-ATB JointVenture |
First production semi-submersible in Malaysia |
| P-55 | Roncador | Brazil | 1,707 | 105,000 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
2012 | Petrobras Petrobras Petróleo Brasileiro or Petrobras is a semi-public Brazilian multinational energy corporation headquartered in Rio de Janeiro, Brazil. It is the largest company in Latin America by market capitalization and revenue, and the largest company headquartered in the Southern Hemisphere by market... |
Atlantico Consortium | Built in Brazil. |
See also
- Drydock – facility used to repair and maintain ships; some are floating and can be submerged to load vessels.
- Heavy lift shipHeavy lift shipA heavy lift ship is a vessel designed to move very large loads that cannot be handled by normally equipped ships. They are of two types: semi-submerging capable of lifting another ship out of the water and transporting it; and vessels that augment unloading facilities at inadequately equipped...
– semi-submerging vessel for transportation of very large loads. - Narco submarineNarco submarineA narco-submarine is a type of custom-made ocean-going self-propelled submersible vessel built by drug traffickers to smuggle drugs. They are especially known to be used by Colombian drug cartel members to export cocaine from Colombia to Mexico, which is often then transported overland to the...
– low profile vessels used to smuggle cocaine from South America to the United States. (FLoating Instrument Platform) – a tilting craft designed to form a stable platform for scientific data collection. - Sea Shadow (IX-529)Sea Shadow (IX-529)Sea Shadow is an experimental stealth ship built by Lockheed for the United States Navy to determine how a low radar profile might be achieved and to test high stability hull configurations which have been used in oceanographic ships....
– a craft designed and built by Lockheed CorporationLockheed CorporationThe Lockheed Corporation was an American aerospace company. Lockheed was founded in 1912 and later merged with Martin Marietta to form Lockheed Martin in 1995.-Origins:...
with the superstructure joined to the hulls with continuous members. - Small waterplane area twin hullSmall Waterplane Area Twin HullA Small Waterplane Area Twin Hull, better known by the acronym SWATH, is a twin-hull ship design that minimizes hull cross section area at the sea's surface. Minimizing the ship's volume near the surface area of the sea, where wave energy is located, maximizes a vessel's stability, even in high...
– a "SWATH" vessel consists of two submarine-like structures supported on streamlined pylons. - SubmersibleSubmersibleA submersible is a small vehicle designed to operate underwater. The term submersible is often used to differentiate from other underwater vehicles known as submarines, in that a submarine is a fully autonomous craft, capable of renewing its own power and breathing air, whereas a submersible is...
or Midget submarineMidget submarineA midget submarine is any submarine under 150 tons, typically operated by a crew of one or two but sometimes up to 6 or 8, with little or no on-board living accommodation...
– for small submarine craft. - Submersible drilling rigSubmersible drilling rigA submersible drilling rig is a marine vessel design that can be floated to location and lowered onto the sea floor for offshore drilling activities.-Design and operation:The submersible drilling platform is supported on large pontoon-like structures...
– for submersible drilling vessels. – the U.S. Civil War warshipWarshipA warship is a ship that is built and primarily intended for combat. Warships are usually built in a completely different way from merchant ships. As well as being armed, warships are designed to withstand damage and are usually faster and more maneuvrable than merchant ships...
considered to be the earliest semi-submerged ship. – another U.S. Civil War semi-submerged ship, capable of flooding down to a lower profile. - WelfreighterWelfreighterThe Welfreighter was a Second World War British midget submarine developed by the Special Operations Executive for the purpose of landing and supplying agents behind enemy lines...
– a submersible designed by Britain during the second World War to carry combat swimmers.
External links
- GVAC.se – Consultants designers
- Dockwise website – Info on Dockwise transport ships
- Naybook website – Photos of Mighty Servant 2 hauling USS Samuel B. Roberts (FFG 58)
- IMO Website – International Maritime Organisation