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Dukhan Field
Dukhan Field is a large petroleum-producing field extending over an area of approximately 80 km in Dukhan, Qatar. The first well was drilled in 1939/1940 and the first export of petroleum from Dukhan went out in 1949. The field produces up to of crude oil per day. Overview The onshore Dukhan field, located along the west coast of the peninsula, is the country's largest producing oil field. The field is roughly long and between to wide. It contains four reservoirs: Khatiyah, Fahahil and Jaleha/Diyab, three are oil reservoirs, and one contains non-associated gas. Oil and gas are separated in four degassing stations: Khatiyah North, Khatiyah Main, Fahahil Main and Jaleha. Stabilized crude is transported by pipeline to the Mesaieed port. History Exploratory drilling was initiated in 1938 on the Dukhan anticline and, in 1939, the initial oil well was struck in the Number 3 Limestone of the Qatar Formation. Operations were put on hold temporarily in 1942 due to the Second Worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum
Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crude oil and petroleum products that consist of refined crude oil. A fossil fuel, petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both prolonged heat and pressure. Petroleum is primarily recovered by oil drilling. Drilling is carried out after studies of structural geology, sedimentary basin analysis, and reservoir characterisation. Recent developments in technologies have also led to exploitation of other unconventional reserves such as oil sands and oil shale. Once extracted, oil is refined and separated, most easily by distillation, into innumerable products for direct use or use in manufacturing. Products include fuels such as gasol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dukhan
Dukhan ( ar, دخان) is a city in the western municipality of Al-Shahaniya in the State of Qatar. It is approximately west of the capital, Doha. Dukhan is administrated by Qatar's state oil agency QatarEnergy and is the site of the first oil discovery in Qatar. It was previously a part of Al Rayyan municipality. All the industrial operations inside the city are administrated by the Dukhan Operations Department. A special permit from QatarEnergy, in the form of a Dukhan entry gate pass, is required for entry to the city. Dukhan Highway, a four-lane motorway that runs for approximately 66 km, connects the city with Doha. Etymology In Mike Morton's biography, ''In the Heart of the Desert'', it is noted that the English translation of Dukhan is 'smoky mountain' (''Jebel Dukhan''), a reference to the clouds that gathered around its summit, and colloquially to the smoke emanating from gas flares around the oil camp named after it. History of oil operations Early operations Oil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qatar
Qatar (, ; ar, قطر, Qaṭar ; local vernacular pronunciation: ), officially the State of Qatar,) is a country in Western Asia. It occupies the Qatar Peninsula on the northeastern coast of the Arabian Peninsula in the Middle East; it shares its sole land border with Saudi Arabia to the south, with the rest of its territory surrounded by the Persian Gulf. The Gulf of Bahrain, an inlet of the Persian Gulf, separates Qatar from nearby Bahrain. The capital is Doha, home to over 80% of the country's inhabitants, and the land area is mostly made up of flat, low-lying desert. Qatar has been ruled as a hereditary monarchy by the House of Thani since Mohammed bin Thani signed a treaty with the British in 1868 that recognised its separate status. Following Ottoman rule, Qatar became a British protectorate in 1916, and gained independence in 1971. The current emir is Tamim bin Hamad Al Thani, who holds nearly all executive and legislative authority under the Constitution of Qat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onshore (hydrocarbons)
Onshore, when used in relation to hydrocarbons, refers to an oil, natural gas or condensate field that is under the land or to activities or operations carried out in relation to such a field. Onshore may also refer to processes that take place on land that are associated with oil, gas or condensate production that has taken place offshore. The offshore production facility delivers oil, gas and condensate by pipelines to the onshore terminal and processing facility. Alternatively oil may be delivered by ocean-going tanker to the onshore terminal. Onshore oil terminals Onshore oil terminals may include large crude oil tanks for the initial storage of oil prior to processing. Such tanks provide a buffer volume where oil is delivered by tanker. The oil tanker delivery rate is considerably greater than the processing capacity of the plant. Crude oil tanks also allow offshore production to continue if the export route becomes unavailable. Onshore oil terminals generally have f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degassing
Degassing, also known as degasification, is the removal of dissolved gases from liquids, especially water or aqueous solutions. There are numerous methods for removing gases from liquids. Gases are removed for various reasons. Chemists remove gases from solvents when the compounds they are working on are possibly air- or oxygen-sensitive (air-free technique), or when bubble formation at solid-liquid interfaces becomes a problem. The formation of gas bubbles when a liquid is frozen can also be undesirable, necessitating degassing beforehand. Pressure reduction The solubility of gas obeys Henry's law, that is, the amount of a dissolved gas in a liquid is proportional to its partial pressure. Therefore, placing a solution under reduced pressure makes the dissolved gas less soluble. Sonication and stirring under reduced pressure can usually enhance the efficiency. This technique is often referred to as ''vacuum degasification''. Specialized vacuum chambers, called vacuum degassers, ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Well
An oil well is a drillhole boring in Earth that is designed to bring petroleum oil hydrocarbons to the surface. Usually some natural gas is released as associated petroleum gas along with the oil. A well that is designed to produce only gas may be termed a gas well. Wells are created by drilling down into an oil or gas reserve that is then mounted with an extraction device such as a pumpjack which allows extraction from the reserve. Creating the wells can be an expensive process, costing at least hundreds of thousands of dollars, and costing much more when in hard to reach areas, e.g., when creating offshore oil platforms. The process of modern drilling for wells first started in the 19th century, but was made more efficient with advances to oil drilling rigs during the 20th century. Wells are frequently sold or exchanged between different oil and gas companies as an asset – in large part because during falls in price of oil and gas, a well may be unproductive, but if price ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosaurs, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anticline
In structural geology, an anticline is a type of fold that is an arch-like shape and has its oldest beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex up in which the hinge or crest is the location where the curvature is greatest, and the limbs are the sides of the fold that dip away from the hinge. Anticlines can be recognized and differentiated from antiforms by a sequence of rock layers that become progressively older toward the center of the fold. Therefore, if age relationships between various rock strata are unknown, the term antiform should be used. The progressing age of the rock strata towards the core and uplifted center, are the trademark indications for evidence of anticlines on a geologic map. These formations occur because anticlinal ridges typically develop above thrust faults during crustal deformations. The uplifted core of the fold causes compression of strata that preferentially erodes to a deeper st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jebel Nakhsh
Jebel Nakhsh ( ar, جبل النخش; also known as Khashm Al Nakhsh) is a mountain ridge in southern Qatar that stands roughly tall and which runs southeast-to-northwest for 33 km side by side with the western coast. Three main rock layers make up the mountain, the bottom layer containing multiple burrows and being primarily composed of limestone, marl, and shale, the middle layer, which is also the largest, being made up of limestone, marl, stromatolitic limestone and evaporites, and the top layer comprising mainly limestone, which is sedimentary. Geology The British, after surveying the mountain and sending samples to be tested in London in the summer of 1947, decided that it should be mined for gypsum. The Holloway Brothers were commissioned to oversee operations and to set up a mine railway to Umm Bab. A small labor camp was also established in the area. As much as 75 tons of gypsum had been quarried from the mountain by July 1948. The contract was later handed off to the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
