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Unconventional Oil
Unconventional (oil and gas) reservoirs, or unconventional resources (resource plays) are Petroleum geology, accumulations where oil and gas Phase (matter), phases are tightly bound to the rock fabric by strong capillary action, capillary forces, requiring specialized measures for evaluation and Petroleum extraction, extraction. Conventional reservoir Oil and gas are Petroleum#Transformation of kerogen into fossil fuels, generated naturally at depths of around 4 or 5 km below Earth’s Earth#Surface, surface. Being lighter than the water-Groundwater, saturated rocks below the water table, the oil and gas are driven by buoyancy up through aquifer pathways towards Earth's surface over time. Some of the oil and gas percolate all the way to the surface as natural Petroleum seep, seepages, either on land or on the sea floor. The rest remains trapped underground by Petroleum reservoir#seal rock, geological barriers in a variety of Petroleum reservoir#Geology#traps, trap geometries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viscosity Permeability Classification Scheme
Viscosity is a measure of a fluid's rate-dependent drag (physics), resistance to a change in shape or to movement of its neighboring portions relative to one another. For liquids, it corresponds to the informal concept of ''thickness''; for example, syrup has a higher viscosity than water. Viscosity is defined scientifically as a force multiplied by a time divided by an area. Thus its SI units are newton-seconds per metre squared, or pascal-seconds. Viscosity quantifies the internal friction, frictional force between adjacent layers of fluid that are in relative motion. For instance, when a viscous fluid is forced through a tube, it flows more quickly near the tube's center line than near its walls. Experiments show that some stress (physics), stress (such as a pressure difference between the two ends of the tube) is needed to sustain the flow. This is because a force is required to overcome the friction between the layers of the fluid which are in relative motion. For a tube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraction Of Petroleum
Petroleum is a fossil fuel that can be drawn from beneath the Earth's surface. Reservoirs of petroleum are formed through the mixture of plants, algae, and sediments in shallow seas under high pressure. Petroleum is mostly recovered from oil drilling. Seismic surveys and other methods are used to locate oil reservoirs. Oil rigs and oil platforms are used to drill long holes into the earth to create an oil well and extract petroleum. After extraction, oil is refined to make gasoline and other products such as tires and refrigerators. Extraction of petroleum can be dangerous and has led to oil spills. Locating the oil field Geologists and geophysicists use seismic surveys to search for geological structures that may form oil reservoirs. The "classic" method includes making an underground explosion nearby and observing the seismic response, which provides information about the geological structures underground. However, "passive" methods that extract information from naturall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Petroleum Industry In Canada (natural Gas)
Natural gas has been used almost as long as crude oil in Canada, but its commercial development was not as rapid. This is because of special properties of this energy commodity: it is a gas, and it frequently contains impurities. The technical challenges involved to first process and then pipe it to market are therefore considerable. Furthermore, the costs of pipeline building make the whole enterprise capital intensive, requiring both money and engineering expertise, and large enough markets to make the business profitable. Until it became commercially viable, natural gas was often a nuisance. Dangerous to handle and hard to get to market, early oilmen despised it as a poor relation to its rich cousin crude oil. Although early processing procedures were able to remove water, in the 19th century discoveries were only developed if consumers could use the gas just as it came out of the ground. If the gas required further processing or needed to be piped a long distance to m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Energy Independence
United States energy independence is the concept of eliminating or substantially reducing import of petroleum to satisfy the nation's need for Energy in the United States, energy. Some proposals for achieving energy independence would permit imports from the neighboring nations of Energy policy of Canada, Canada and Energy in Mexico, Mexico, in which case it would be called North American energy independence. Energy independence is espoused by those who want to leave the US unaffected by global energy supply chain, supply disruptions and would restrict reliance upon Fragile state, politically unstable states for its energy security. In Autarky, total energy consumption, the U.S. produces more energy than it uses. In May 2011, the U.S. became a net exporter of Oil refinery, refined petroleum products. By 2014, the United States was the world's List of countries by oil production, third largest producer of crude oil, after Saudi Arabia and Russia, and second-largest exporter o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2000s Energy Crisis
From the mid-1980s to September 2003, the inflation-adjusted price of a barrel of crude oil on NYMEX was generally under US$25/barrel in 2008 dollars. During 2003, the price rose above $30, reached $60 by 11 August 2005, and peaked at $147.30 in July 2008. Commentators attributed these price increases to multiple factors, including Middle East tension, soaring demand from China, the falling value of the U.S. dollar, reports showing a decline in petroleum reserves, worries over peak oil, and financial speculation. For a time, geopolitical events and natural disasters had strong short-term effects on oil prices, such as North Korean missile tests, the 2006 conflict between Israel and Lebanon, worries over Iranian nuclear plans in 2006, Hurricane Katrina, and various other factors. By 2008, such pressures appeared to have an insignificant impact on oil prices given the onset of the global recession. The recession caused demand for energy to shrink in late 2008, with oi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millennium
A millennium () is a period of one thousand years, one hundred decades, or ten centuries, sometimes called a kiloannum (ka), or kiloyear (ky). Normally, the word is used specifically for periods of a thousand years that begin at the starting point (initial reference point) of the calendar in consideration and at later years that are whole number multiples of a thousand years after the start point. The term can also refer to an interval of time beginning on any date. Millennia sometimes have religious or theological implications (see millenarianism). The word ''millennium'' derives from the Latin ', ''thousand'', and ', year. Debate over millennium celebrations There was a public debate leading up to the celebrations of the year 2000 as to whether the beginning of that year should be understood as the beginning of the "new" millennium. Historically, there has been debate around the turn of previous decades, centuries, and millennia, but not so much for decades. The issue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fracking
Fracking (also known as hydraulic fracturing, fracing, hydrofracturing, or hydrofracking) is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep-rock formations through which natural gas, petroleum, and brine will flow more freely. When the hydraulic pressure is removed from the well, small grains of hydraulic fracturing proppants (either sand or aluminium oxide) hold the fractures open. Fracking, using either hydraulic pressure or acid, is the most common method for well stimulation. Well stimulation techniques help create pathways for oil, gas or water to flow more easily, ultimately increasing the overall production of the well. Both methods of fracking are classed as ''unconventional'', because they aim t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War
A world war is an international War, conflict that involves most or all of the world's major powers. Conventionally, the term is reserved for two major international conflicts that occurred during the first half of the 20th century, World War I (1914–1918) and World War II (1939–1945), although some historians have also characterized other global conflicts as world wars, such as the Nine Years' War, the War of the Spanish Succession, the Seven Years' War, the French Revolutionary and Napoleonic Wars, the Cold War, and the War on terror. Etymology The ''Oxford English Dictionary'' had cited the first known usage in the English language to a Scotland, Scottish newspaper, ''The People's Journal'', in 1848: "A war among the great powers is now necessarily a world-war." The term "world war" is used by Karl Marx and his associate, Friedrich Engels, in a series of articles published around 1850 called ''The Class Struggles in France''. Rasmus B. Anderson in 1889 described an episode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enhanced Oil Recovery
Enhanced oil recovery (abbreviated EOR), also called tertiary recovery, is the extraction of crude oil from an oil field that cannot be extracted after primary and secondary recovery methods have been completely exhausted. Whereas primary and secondary recovery techniques rely on the pressure differential between the surface and the underground well, enhanced oil recovery functions by altering the physical or chemical properties of the oil itself in order to make it easier to extract. When EOR is used, 30% to 60% or more of a reservoir's oil can be extracted, compared to 20% to 40% using only Extraction of petroleum#Primary recovery, primary and Extraction of petroleum#Secondary recovery, secondary recovery. There are four main EOR techniques: carbon dioxide (CO2) injection, gas injection, thermal EOR, and chemical EOR. More advanced, speculative EOR techniques are sometimes called quaternary recovery. Carbon dioxide injection, known as CO2-EOR, is the most common method. In thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Well Stimulation
Well stimulation is a broad term used to describe the various techniques and well interventions that can be used to restore or enhance the production of hydrocarbons from an oil well, or energy from a geothermal well. Well stimulation can be performed on an oil or gas well located onshore or offshore, often with specialised ships. Thglossary of technical termsprovided by Schlumberger (the world's largest oil service company) definestimulationas: Stimulation is usually part of the completion stage in the life cycle of a well. Matrix acidising operates in the near-wellbore environment, and is aimed at restoring the ''natural permeability'' of the reservoir rock. But hydraulic fracking aims to ''increase'' the permeability of a far larger volume of reservoir rock. In addition to matrix acidising there is fracture acidising, which is a variety of hydraulic fracking. The Society of Petroleum Engineers (SPE) points out that thestwo kinds of acid treatmentoften lead to confusion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum Industry
The petroleum industry, also known as the oil industry, includes the global processes of hydrocarbon exploration, exploration, extraction of petroleum, extraction, oil refinery, refining, Petroleum transport, transportation (often by oil tankers and pipeline transport, pipelines), and Downstream (petroleum industry)#Marketing, marketing of list of crude oil products, petroleum products. The largest volume products of the industry are fuel oil and gasoline (petrol). Petroleum is also the raw material for many petrochemical, chemical products, including pharmaceutical drug, pharmaceuticals, solvents, fertilizers, pesticides, synthetic Aroma compound, fragrances, and plastics. The industry is usually divided into three major components: upstream (petroleum industry), upstream, midstream, and downstream (petroleum industry), downstream. Upstream regards exploration and extraction of Petroleum, crude oil, midstream encompasses transportation and Oil terminal, storage of crude, and dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schematic Cross-section Of General Types Of Oil And Gas Resources And The Orientations Of Production Wells Used In Hydraulic Fracturing
A schematic, or schematic diagram, is a designed representation of the elements of a system using abstract, graphic symbols rather than realistic pictures. A schematic usually omits all details that are not relevant to the key information the schematic is intended to convey, and may include oversimplified elements in order to make this essential meaning easier to grasp, as well as additional organization of the information. For example, a subway map intended for passengers may represent a subway station with a dot. The dot is not intended to resemble the actual station at all but aims to give the viewer information without unnecessary visual clutter. A schematic diagram of a chemical process uses symbols in place of detailed representations of the vessels, piping, valves, pumps, and other equipment that compose the system, thus emphasizing the functions of the individual elements and the interconnections among them and suppresses their physical details. In an electronic circuit d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
