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Itajaí-Açu Formation
The Itajaí-Açu Formation () is a geological formation of the Santos Basin offshore of the Brazilian states of Rio de Janeiro, São Paulo, Paraná and Santa Catarina. The predominantly shale with interbedded turbiditic sandstones formation dates to the Late Cretaceous period; Cenomanian-Maastrichtian epochs and has a maximum thickness of . The formation is a reservoir rock of the fields in the Santos Basin. Etymology The formation is named after the Itajaí-Açu River, Santa Catarina. Description The Itajaí-Açu Formation is thick,Kiang Chang et al., 2008, p.32 and comprises a thick interval of dark grey clayey rocks, interbedded with the clastics of the Santos and Juréia Formations. Within this formation, the Ilhabela Member includes the turbiditic sandstones occurring along the section. The sedimentary environment is thought to be marine talus to open basin. Biostratigraphic data from palynomorphs, calcareous nannofossils and planktonic foraminifera indicate a Late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenomanian
The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretaceous series (stratigraphy), Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name. As a unit of geologic time measure, the Cenomanian Age spans the time between 100.5 and 93.9 million years ago (Mya). In the geologic timescale, it is preceded by the Albian and is followed by the Turonian. The Upper Cenomanian starts around at 95 Mya. The Cenomanian is coeval with the Woodbinian of the regional timescale of the Gulf of Mexico and the early part of the Eaglefordian of the regional timescale of the East Coast of the United States. At the end of the Cenomanian, an anoxic event took place, called the Cenomani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like uncemented sand, sandstone may be imparted any color by impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Because sandstone beds can form highly visible cliffs and other topography, topographic features, certain colors of sandstone have become strongly identified with certain regions, such as the red rock deserts of Arches National Park and other areas of the Southwestern United States, American Southwest. Rock formations composed of sandstone usually allow the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Paso Corp
El Paso Corporation was a provider of natural gas and related energy products and was one of North America's largest natural gas producers until its acquisition by Kinder Morgan in 2012. It was headquartered in Houston, Texas, United States. Prior to the takeover by Kinder Morgan, the company owned North America's largest natural gas pipeline system which traveled from border-to-border and coast-to-coast. The pipeline system included Colorado Interstate Gas; El Paso Natural Gas; Southern Natural Gas; Tennessee Gas Pipeline; Cheyenne Plains Pipeline; Mojave Pipeline; Elba Express Pipeline; Young Gas Storage; Wyoming Interstate Company; and Ruby Pipeline. The El Paso Corporation also owned fifty percent of Great Lakes Transmission and Florida Gas Transmission and employed 6,000 people. Florida Gas is part of Southern Natural Gas. In 1999 the company doubled in size when it merged with Birmingham, Alabama based natural gas giant Sonat. It went on to acquire Coastal Corporation in 2001 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagosta Oil Field
Lagosta Field is an oil and gas field located in the Santos Basin of southeastern Brazil. The field was discovered in July 2003 and was operated by El Paso Corp. oil company, holding a 60% stake with Petrobras owning the other 40%. Later, the field passed to Petrobras as operator. The field is estimated to contain of gas,Vieira, 2007, p.9 and of oil in the Itajaí-Açu Formation. The field, located next to the Merluza Field, the first discovery in the Santos Basin in 1979, started development in 2009. See also * Campos Basin * Tupi oil field The Tupi oil field (reverted from Lula oil field) is a large oil field located in the Santos Basin, off the coast of Rio de Janeiro, Brazil. The field was originally nicknamed in honor of the Tupi people and later named after the mollusc, how ... References Bibliography * Oil fields of Brazil Santos Basin Petrobras oil and gas fields {{brazil-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrobras
Petróleo Brasileiro S.A., better known by and Trade name, trading as the portmanteau Petrobras (), is a Brazilian state-owned enterprise, majority state-owned multinational corporation in the petroleum industry headquartered in Rio de Janeiro. The company's name translates to Brazilian Petroleum Corporation — Petrobras. The company was ranked #71 in the 2023 Fortune Global 500, ''Fortune'' Global 500 list. In the 2023 Forbes Global 2000, ''Forbes'' Global 2000, Petrobras was ranked as the 58th-largest public company in the world. History Petrobras was created in 1953 under the Second presidency of Getúlio Vargas, government of Brazilian president Getúlio Vargas with the slogan "The Oil is Ours" (Portuguese: "O petróleo é nosso"). It was given a legal monopoly in Brazil. In 1953, Brazil produced only 2,700 barrels of oil per day. In 1961, the company's REDUC refinery began operations near Rio de Janeiro, and in 1963, its Cenpes research center opened in Rio de Janeiro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Repsol
Repsol S.A. El Nuevo Herald, 2012-05-31Originally an initialism for ''Refinería de Petróleos de Escombreras'' adding the word ''Sol'' (Sun) () is a Spanish multinational energy and petrochemical company based in Madrid. It is engaged in worldwide Upstream (petroleum industry), upstream and Downstream (petroleum industry), downstream activities. In the 2022 Forbes Global 2000, Repsol was ranked as the 320th-largest public company in the world. As of 2022, it has 24,000 employees worldwide. It is Vertical integration, vertically integrated and operates in all areas of the oil and gas industry, including Hydrocarbon exploration, exploration and Extraction of petroleum, production, refining, Midstream, distribution and marketing, petrochemicals, power generation and Trade, trading. The busin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seal Rock
A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence of high heat and pressure in the Earth's crust. Reservoirs are broadly classified as ''conventional'' and '' unconventional'' reservoirs. In conventional reservoirs, the naturally occurring hydrocarbons, such as crude oil (petroleum) or natural gas, are trapped by overlying rock formations with lower permeability, while in unconventional reservoirs the rocks have high porosity and low permeability, which keeps the hydrocarbons trapped in place, therefore not requiring a cap rock. Reservoirs are found using hydrocarbon exploration methods. Oil field An oil field is an area of accumulated liquid petroleum underground in multiple (potentially linked) reservoirs, trapped as it rises to impermeable rock formations. In industrial term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Source Rock
In petroleum geology, source rock is a sedimentary rock which has generated hydrocarbons or which has the potential to generate hydrocarbons. Source rocks are one of the necessary elements of a working petroleum system. They are organic-rich sediments that may have been deposited in a variety of environments including deep water marine, lacustrine and deltaic. Oil shale can be regarded as an organic-rich but immature source rock from which little or no oil has been generated and expelled. Subsurface source rock mapping methodologies make it possible to identify likely zones of petroleum occurrence in sedimentary basins as well as shale gas plays. Types of source rocks Source rocks are classified from the types of kerogen that they contain, which in turn governs the type of hydrocarbons that will be generated: * Type I source rocks are formed from algal remains deposited under anoxic conditions in deep lakes: they tend to generate waxy crude oils when submitted to thermal st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foraminifera
Foraminifera ( ; Latin for "hole bearers"; informally called "forams") are unicellular organism, single-celled organisms, members of a phylum or class (biology), class of Rhizarian protists characterized by streaming granular Ectoplasm (cell biology), ectoplasm for catching food and other uses; and commonly an external shell (called a "Test (biology), test") of diverse forms and materials. Tests of chitin (found in some simple genera, and ''Textularia'' in particular) are believed to be the most primitive type. Most foraminifera are marine, the majority of which live on or within the seafloor sediment (i.e., are benthos, benthic, with different sized species playing a role within the macrobenthos, meiobenthos, and Benthos, microbenthos), while a smaller number float in the water column at various depths (i.e., are planktonic), which belong to the suborder Globigerinina. Fewer are known from freshwater or brackish conditions, and some very few (nonaquatic) soil species have been id ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcareous Nannofossils
Calcareous nannofossils are a class of tiny (less than 30 microns in diameter) microfossils that are similar to coccoliths deposited by the modern-day coccolithophores. The nannofossils are a convenient source of geochronological data due to the abundance and rapid evolution of the single-cell organisms forming them (nannoplankton) and ease of handling of the sediment samples. The practical applications of calcareous nannofossils in the areas of biostratigraphy and paleoecology became clear once the deepwater drilling took off in 1968 with the Deep Sea Drilling Project, and they have been extensively studied ever since. Nannofossils provide one of the most important paleontological records with the contiguous length of 220 million years. History of research Christian Gottfried Ehrenberg, while examining the chalk from Ruegen, recorded in 1836 an observation of what was later termed " coccolith" and had pictured the coccoliths and Discoasters in his ''Mikrogeologie' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palynomorph
Palynology is the study of microorganisms and microscopic fragments of mega-organisms that are composed of acid-resistant organic material and occur in sediments, sedimentary rocks, and even some metasedimentary rocks. Palynomorphs are the microscopic, acid-resistant organic remains and debris produced by a wide variety of plants, animals, and Protista that have existed since the late Proterozoic.Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, eds., 2005, ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. It is the science that studies contemporary and fossil palynomorphs (paleopalynology), including pollen, spores, orbicules, dinocysts, acritarchs, chitinozoans and scolecodonts, together with particulate organic matter (POM) and kerogen found in sedimentary rocks and sediments. Palynology does not include diatoms, foraminiferans or other organisms with siliceous or calcareous tests. The name of the science and organisms is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
