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Drillship
A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In recent years the vessels have been used in deepwater and ultra-deepwater applications, equipped with the latest and most advanced dynamic positioning systems. History The first drillship was the ''CUSS I'', designed by Robert F. Bauer of Global Marine in 1955. The ''CUSS I'' had drilled in 400-foot-deep waters by 1957.Schempf, F. (2007). Pioneering Offshore: The Early Years. ulsa, OK PennWell Custom Pub.. Robert F. Bauer became the first president of Global Marine in 1958. In 1961 Global Marine started a new drillship era. They ordered several self-propelled drillships each with a rated centerline drilling of 20,000 foot-wells in water depths of 600 feet. The first was named ''CUSS ( Glomar) II'', a 5,500-deadweight-ton vessel, costing around $4.5 million. Built by a Gulf Coast shipyard, the vessel was almost twice the size o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drillships
A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In recent years the vessels have been used in deepwater and ultra-deepwater applications, equipped with the latest and most advanced dynamic positioning systems. History The first drillship was the ''CUSS I'', designed by Robert F. Bauer of Global Marine in 1955. The ''CUSS I'' had drilled in 400-foot-deep waters by 1957.Schempf, F. (2007). Pioneering Offshore: The Early Years. ulsa, OK PennWell Custom Pub.. Robert F. Bauer became the first president of Global Marine in 1958. In 1961 Global Marine started a new drillship era. They ordered several self-propelled drillships each with a rated centerline drilling of 20,000 foot-wells in water depths of 600 feet. The first was named ''CUSS ( Glomar) II'', a 5,500-deadweight-ton vessel, costing around $4.5 million. Built by a Gulf Coast shipyard, the vessel was almost twice the size o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Platform
An oil platform (or oil rig, offshore platform, oil production platform, and similar terms) 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 bridge linked 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 Platform, fixed to the ocean floor, consist of an artificial island, or floating oil production system, 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 cable, umbilical connections. These sub-sea facilities may include of one or more subsea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoverer Enterprise
''Discoverer Enterprise'' is a fifth generation deepwater double hulled dynamically positioned drillship (ASTANO FPSO design) owned and operated by Transocean Offshore Deepwater Drilling Inc., capable of operating in moderate environments and water depths up to 3,049 m (10,000 ft) using an , 15,000 psi blowout preventer (BOP), and a outside diameter (OD) marine riser. From 1998 to 2005 the vessel was Panama-flagged and currently flies the flag of convenience of the Marshall Islands. ''Discoverer Enterprise'' has two sister ships, ''Discoverer Spirit'' completed in 1999, and ''Discoverer Deep Seas'' completed in 2000. The ship was the first to offer a dual drilling derrick capability. The dual derricks allowed simultaneous operations to be performed, and according to Transocean increased efficiency by 40 percent. The US$360 million ship gives its name to the Enterprise Class of large deepwater drillships. ''Deepwater Horizon'' spill response The ship operates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Offshore Drilling
Offshore drilling is a mechanical process where a wellbore is drilled below the seabed. It is typically carried out in order to explore for and subsequently extract petroleum that lies in rock formations beneath the seabed. Most commonly, the term is used to describe drilling activities on the continental shelf, though the term can also be applied to drilling in lakes, inshore waters and inland seas. Offshore drilling presents environmental challenges, both offshore and onshore from the produced hydrocarbons and the materials used during the drilling operation. Controversies include the ongoing US offshore drilling debate. There are many different types of facilities from which offshore drilling operations take place. These include bottom founded drilling rigs ( jackup barges and swamp barges), combined drilling and production facilities either bottom founded or floating platforms, and deepwater mobile offshore drilling units (MODU) including semi-submersibles or drillships. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Positioning
Dynamic positioning (DP) is a computer-controlled system to automatically maintain a vessel's position and heading by using its own propellers and thrusters. Position reference sensors, combined with wind sensors, motion sensors and gyrocompasses, provide information to the computer pertaining to the vessel's position and the magnitude and direction of environmental forces affecting its position. Examples of vessel types that employ DP include ships and semi-submersible mobile offshore drilling units (MODU), oceanographic research vessels, cable layer ships and cruise ships. The computer program contains a mathematical model of the vessel that includes information pertaining to the wind and current drag of the vessel and the location of the thrusters. This knowledge, combined with the sensor information, allows the computer to calculate the required steering angle and thruster output for each thruster. This allows operations at sea where mooring or anchoring is not feasible du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CUSS I
Project Mohole was an attempt in the early 1960s to drill through the Earth's crust to obtain samples of the Mohorovičić discontinuity, or Moho, the boundary between the Earth's crust and mantle. The project was intended to provide an earth science complement to the high-profile Space Race. While such a project was not feasible on land, drilling in the open ocean was more feasible, because the mantle lies much closer to the sea floor. Led by a group of scientists called the American Miscellaneous Society with funding from the National Science Foundation, the project suffered from political and scientific opposition, mismanagement, and cost overruns. The U.S. House of Representatives defunded it in 1966.Mohole, LOCO, CORE, and JOIDES: A brief chronology Betty Shor, The Scripps Institutio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valaris Plc
Valaris plc is an offshore drilling contractor headquartered in Houston, Texas, and incorporated in the UK. It is the largest offshore drilling and well drilling company in the world, and owns 56 rigs, including 40 offshore jackup rigs, 11 drillships, and 5 semi-submersible platform drilling rigs. In 2021, the company's largest customers were BP (11% of revenues) and Total S.A. (9% of revenues). History In 1975, after the 1973 oil crisis, John R. Blocker bought Choya Energy, a six-rig contract drilling company based in Alice, Texas, and renamed the company Blocker Energy. In 1980, the company became a public company via an initial public offering. In 1981 and early 1982, the company borrowed heavily to expand its fleet to 54 rigs. However, in late 1982, the price of oil plunged and, to avoid bankruptcy, Blocker Energy restructured, giving 64% of the company to its banks in exchange for $240 million in debt forgiveness. By 1983, the company was only operating 6 rigs, although ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chikyū
is a Japanese scientific drilling ship built for the Integrated Ocean Drilling Program (IODP). The vessel is designed to ultimately drill beneath the seabed, where the Earth's crust is much thinner, and into the Earth's mantle, deeper than any other hole drilled in the ocean thus far. While the planned depth of the hole is significantly less than the Russian Kola Superdeep Borehole (which reached depth on land), the scientific results are expected to be much more interesting since the regions targeted by ''Chikyū'' include some of the most seismically-active regions of the world. Other deep holes have been drilled by the drill ship JOIDES Resolution during the Deep Sea Drilling Project and the Ocean Drilling Program. Operation The Japanese part of the IODP program is called , Japanese for "Earth Discovery". ''Chikyū'' is operated by the Centre for Deep Earth Research (CDEX), a subdivision of the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). JAMSTEC also ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoverer Clear Leader
''Discoverer Clear Leader'' is a double hulled dynamically positioned drillship, capable of operating in moderate environments and water depths up to 12,000 feet (3,657m) using an , 15,000 psi blowout preventer (BOP), and a outside diameter (OD) marine riser. The Marshall Islands-flagged vessel is owned by Transocean, and is operating in the Gulf of Mexico of the United States. Sister ships ''Discoverer Clear Leader'' design is a "Transocean Offshore enhanced Enterprise-class" and has four other sister ship A sister ship is a ship of the same class or of virtually identical design to another ship. Such vessels share a nearly identical hull and superstructure layout, similar size, and roughly comparable features and equipment. They often share a ...s: ''Discoverer Americas'', ''Discoverer Inspiration'', ''Discoverer Luanda'', and ''Discoverer India''. References External links Transocean official website''Discoverer Clear Leader'' — V7MO2 — position and weath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kanuni Ship 20201020 2
Suleiman I ( ota, سليمان اول, Süleyman-ı Evvel; tr, I. Süleyman; 6 November 14946 September 1566), commonly known as Suleiman the Magnificent in the West and Suleiman the Lawgiver ( ota, قانونى سلطان سليمان, Ḳānūnī Sulṭān Süleymān) in his realm, was the tenth and longest-reigning Sultan of the Ottoman Empire from 1520 until his death in 1566. Under his administration, the Ottoman Empire ruled over at least 25 million people. Suleiman succeeded his father, Selim I, as sultan on 30 September 1520 and began his reign with campaigns against the Christian powers in central Europe and the Mediterranean. Belgrade fell to him in 1521 and the island of Rhodes in 1522–23. At Mohács, in August 1526, Suleiman broke the military strength of Hungary. Suleiman became a prominent monarch of 16th-century Europe, presiding over the apex of the Ottoman Empire's economic, military and political power. Suleiman personally led Ottoman armies in conqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transocean
Transocean Ltd. is an American company. It is the world's largest offshore drilling contractor based on revenue and is based in Vernier, Switzerland. The company has offices in 20 countries, including Canada, the United States, Norway, United Kingdom, India, Brazil, Singapore, Indonesia, and Malaysia. In 2010, Transocean was found partially responsible (30% of total liability) for the Deepwater Horizon oil spill resulting from the explosion of one of its oil rigs in the Gulf of Mexico. In 2019, Royal Dutch Shell accounted for 26% of the company's revenues, while Equinor accounted for 21% of the company's revenues, and Chevron accounted for 17% of the company's revenues. History Transocean was formed as a result of the merger of Southern Natural Gas Company, later Sonat, with many smaller drilling companies. In 1953, the Birmingham, Alabama-based Southern Natural Gas Company created The Offshore Company after acquiring the joint drilling operation DeLong-McDermott from DeLon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reliance Industries
Reliance Industries Limited is an Indian multinational conglomerate company, headquartered in Mumbai. It has diverse businesses including energy, petrochemicals, natural gas, retail, telecommunications, mass media, and textiles. Reliance is one of the most profitable companies in India, the largest publicly traded company in India by market capitalisation, and the largest company in India as measured by revenue. It is also the one of the top largest employer in India with over 236,000 employees in the world. The company is ranked 100th on the Fortune Global 500 list of the world's biggest corporations as of 2022. Reliance continues to be India's largest exporter, accounting for 7% of India's total merchandise exports and it has access to markets in over 100 countries. Reliance is responsible for almost 5% of the Government of India's total revenue from customs and excise duty. It is also the highest income tax payer in the private sector in India. The company has relatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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