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Ixtoc I Oil Spill
Ixtoc 1 was an exploratory oil well being drilled by the semi-submersible drilling rig ''Sedco 135'' in the Bay of Campeche of the Gulf of Mexico, about northwest of Ciudad del Carmen, Campeche in waters deep. On 3 June 1979, the well suffered a blowout resulting in one of the largest oil spills in history. Accident Mexico's state-owned oil company Pemex (Petróleos Mexicanos) was drilling a deep oil well when the drilling rig ''Sedco 135'' lost drilling mud circulation. In modern rotary drilling, mud is circulated down the drillpipe and back up the wellbore to the surface. The goal is to equalize the pressure through the shaft and to monitor the returning mud for gas. Without the counter-pressure provided by the circulating mud, the pressure in the formation allowed oil to fill the well column, blowing out the well. The oil caught fire, and ''Sedco 135'' was extensively burned then scuttled. At the time of the accident ''Sedco 135'' was drilling at a depth of about below ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Campeche
The Bay of Campeche ( es, Bahía de Campeche), or Campeche Sound, is a bight in the southern area of the Gulf of Mexico, forming the north side of the Isthmus of Tehuantepec. It is surrounded on three sides by the Mexican states of Campeche, Tabasco and Veracruz. The area of the bay is and maximum depth of the bay is approximately . It was named by Francisco Hernández de Córdoba and Antón de Alaminos during their expedition in 1517. Oil resources The Cantarell Complex of five oil fields lies beneath the Bay of Campeche. In 2003, it was the second most productive oil field in the world, then supplying about two thirds of Mexico's crude oil output, but it went into a steep decline soon thereafter. On June 3, 1979, '' Ixtoc I'', an exploratory oil well located in the bay, suffered a blowout that caused a catastrophic explosion, resulting in what has been ranked as the third largest unintentional oil spill in history. Climate During the months of June and July, the Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fracture (geology)
A fracture is any separation in a geologic formation, such as a joint or a fault that divides the rock into two or more pieces. A fracture will sometimes form a deep fissure or crevice in the rock. Fractures are commonly caused by stress exceeding the rock strength, causing the rock to lose cohesion along its weakest plane. Fractures can provide permeability for fluid movement, such as water or hydrocarbons. Highly fractured rocks can make good aquifers or hydrocarbon reservoirs, since they may possess both significant permeability and fracture porosity. Brittle deformation Fractures are forms of brittle deformation. There are two types of primary brittle deformation processes. Tensile fracturing results in ''joints''. ''Shear fractures'' are the first initial breaks resulting from shear forces exceeding the cohesive strength in that plane. After those two initial deformations, several other types of secondary brittle deformation can be observed, such as ''frictional s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Turtle
Sea turtles (superfamily Chelonioidea), sometimes called marine turtles, are reptiles of the order Testudines and of the suborder Cryptodira. The seven existing species of sea turtles are the flatback, green, hawksbill, leatherback, loggerhead, Kemp's ridley, and olive ridley sea turtles. All six of the sea turtle species present in US waters (all of those listed above except the flatback) are listed as endangered and/or threatened under the Endangered Species Act. The seventh sea turtle species is the flatback, which exists in the waters of Australia, Papua New Guinea and Indonesia. Sea turtles can be separated into the categories of hard-shelled ( cheloniid) and leathery-shelled ( dermochelyid).Wyneken, J. 2001. The Anatomy of Sea Turtles. U.S Department of Commerce NOAA Technical Memorandum NMFS-SEFSC-470, 1-172 pp. There is only one dermochelyid species which is the leatherback sea turtle. Description For each of the seven types of sea turtles, females and males are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kemp's Ridley
Kemp's ridley sea turtle (''Lepidochelys kempii''), also called the Atlantic ridley sea turtle, is the rarest species of sea turtle and is the world's most endangered species of sea turtle. It is one of two living species in the genus '' Lepidochelys'' (the other one being ''L. olivacea'', the olive ridley sea turtle). Taxonomy This species of turtle is called Kemp's ridley because Richard Moore Kemp (1825–1908) of Key West was the first to send a specimen to Samuel Garman at Harvard, but the origin of the name "ridley" itself is unknown. Prior to the term being popularly used (for both species in the genus), ''L. kempii'' at least was known as the "bastard turtle". At least one source also refers to Kemp's ridley as a "heartbreak turtle". In her book ''The Great Ridley Rescue'', Pamela Philips claimed the name was coined by fishermen who witnessed the turtles dying after being "turned turtle" (on their backs). The fishermen said the turtles "died of a broken heart". Descrip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamaulipas
Tamaulipas (), officially the Free and Sovereign State of Tamaulipas ( es, Estado Libre y Soberano de Tamaulipas), is a state in the northeast region of Mexico; one of the 31 states which, along with Mexico City, comprise the 32 Federal Entities of Mexico. It is divided into 43 municipalities. Tamaulipas is bordered by the states of Nuevo León to the west, San Luis Potosí to the southwest, and Veracruz to the southeast. To the north, it has a stretch of the U.S.–Mexico border with the state of Texas, and to the east it is bordered by the Gulf of Mexico. In addition to the capital city, Ciudad Victoria, the state's largest cities include Reynosa, Matamoros, Nuevo Laredo, Tampico, and Mante. Etymology The name Tamaulipas is derived from ''Tamaholipa'', a Huastec term in which the ''tam-'' prefix signifies "place (where)". No scholarly agreement exists on the meaning of ''holipa'', but "high hills" is a common interpretation. Another explanation of the state nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican State
The states of Mexico are first-level administrative territorial entities of the country of Mexico, which is officially named United Mexican States. There are 32 federal entities in Mexico (31 states and the capital, Mexico City, as a separate entity that is not formally a state). States are further divided into municipalities. Mexico City is divided in boroughs, officially designated as or , similar to other state's municipalities but with different administrative powers. List ''Mexico's post agency, Correos de México, does not offer an official list of state name abbreviations, and as such, they are not included below. A list of Mexican states and several versions of their abbreviations can be found here.'' } , style="text-align: center;" , ''Coahuila de Zaragoza'' , , style="text-align: center;" colspan=2 , Saltillo , style="text-align: right;" , , style="text-align: right;" , , style="text-align: center;" , 38 , style="text-align: center;" , , , - , C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sovereign Immunity
Sovereign immunity, or crown immunity, is a legal doctrine whereby a sovereign or state cannot commit a legal wrong and is immune from civil suit or criminal prosecution, strictly speaking in modern texts in its own courts. A similar, stronger rule as regards foreign courts is named state immunity. History Sovereign immunity is the original forebear of state immunity based on the classical concept of sovereignty in the sense that a sovereign could not be subjected without his or her approval to the jurisdiction of another. In constitutional monarchies, the sovereign is the historical origin of the authority which creates the courts. Thus the courts had no power to compel the sovereign to be bound by them as they were created by the sovereign for the protection of his or her subjects. This rule was commonly expressed by the popular legal maxim ''rex non potest peccare'', meaning "the king can do no wrong". Forms There are two forms of sovereign immunity: * immunity from sui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific American
''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many famous scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it. In print since 1845, it is the oldest continuously published magazine in the United States. ''Scientific American'' is owned by Springer Nature, which in turn is a subsidiary of Holtzbrinck Publishing Group. History ''Scientific American'' was founded by inventor and publisher Rufus Porter in 1845 as a four-page weekly newspaper. The first issue of the large format newspaper was released August 28, 1845. Throughout its early years, much emphasis was placed on reports of what was going on at the U.S. Patent Office. It also reported on a broad range of inventions including perpetual motion machines, an 1860 device for buoying vessels by Abraham Lincoln, and the universal joint which now can be found in nearly every automobile manufactured. Current issues includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deepwater Horizon Oil Spill
The ''Deepwater Horizon'' oil spill (also referred to as the "BP oil spill") was an industrial disaster that began on 20 April 2010 off of the coast of the United States in the Gulf of Mexico on the BP-operated Macondo Prospect, considered to be the largest marine oil spill in the history of the petroleum industry and estimated to be 8 to 31 percent larger in volume than the previous largest, the Ixtoc I oil spill, also in the Gulf of Mexico. The United States federal government estimated the total discharge at . After several failed efforts to contain the flow, the well was declared sealed on 19 September 2010. Reports in early 2012 indicated that the well site was still leaking. The ''Deepwater Horizon'' oil spill is regarded as one of the largest environmental disasters in world history. A massive response ensued to protect beaches, wetlands and estuaries from the spreading oil utilizing skimmer ships, floating booms, controlled burns and of oil dispersant. Due to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Adair
Paul Neal "Red" Adair (June 18, 1915 – August 7, 2004)Obituary: Red Adair , August 8, 2004 was an American fighter. He became notable internationally as an innovator in the highly specialized and hazardous profession of extinguishing and capping oil well blowouts, both land-based and offshore. Early life and education Adair was born in |
Barrier Islands
Barrier islands are coastal landforms and a type of dune system that are exceptionally flat or lumpy areas of sand that form by wave and tidal action parallel to the mainland coast. They usually occur in chains, consisting of anything from a few islands to more than a dozen. They are subject to change during storms and other action, but absorb energy and protect the coastlines and create areas of protected waters where wetlands may flourish. A barrier chain may extend uninterrupted for over a hundred kilometers, excepting the tidal inlets that separate the islands, the longest and widest being Padre Island of Texas, United States. Sometimes an important inlet may close permanently, transforming an island into a peninsula, thus creating a barrier peninsula, often including a beach, barrier beach. The length and width of barriers and overall morphology of barrier coasts are related to parameters including tidal range, wave energy, sediment supply, sea-level trends, and baseme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corexit
Corexit (often styled COREXIT) is a product line of oil dispersants used during oil spill response operations. It is produced by Nalco Holding Company, an indirect subsidiary of Ecolab. Corexit was originally developed by the Standard Oil Company of New Jersey. Corexit is typically applied by aerial spraying or spraying from ships directly onto an oil slick. On contact with the dispersant, oil that would otherwise float on the surface of the water is emulsified into tiny droplets and sinks or (in the unusual case of sub-surface application) remains suspended in the water. In theory this allows the oil to be more rapidly degraded by bacteria (bioremediation) and prevents it from accumulating on beaches and in marshes. Corexit was used in unprecedented quantities during the 2010 Deepwater Horizon oil spill in the Gulf of Mexico and became the largest use of such chemicals in the United States. In addition to spraying the dispersant onto the surface slick, it was used in an unteste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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