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What does bitumen sands mean?
Bitumen sands are a natural sand or sandstone deposit which at some stage had been saturated with hydrocarbons. But which at some later stage had been exposed to conditions such that only the heavy (or long-chain) molecules remain. Or at least from which the lighter liquids and volatiles have disappeared. Actually a very common form of hydrocarbon deposit.
How do they get the oil out of the oil sands?
you get a piece of cheese you sit down then wait for the pros to do it
What is the effect of density on the friction angle of sands?
The friction angle of the mixture increases the relative density.
How do you remove oil from oil sands?
Oil sands or bituminous sands, (more technical term) are difficult to produce because of the extremely high viscosity of the oil. Generally, the oil must be pumped out, and recovery is poor. Methods to improve recovery include heating the oil underground using steam. A thermal method called SAGD, or steam assisted gravity drainage, creates a steam zone (steam chest) immediately above the oil deposit, and wells are perforated (opened to production) at the bottom of the oil zone. The link I have included gives a general overview of various methods, and there is considerable information on the internet on SAGD and other processes. See related link.
What is hydraulic conductivity of soil?
This depends on the soil! Cohesionless coarse grained soils with high gravel contents may have high hydraulic conductivity on the order of 1 to 1x10-1 m/s. Mixed sands and gravels are on the order of 1x10-1 to 1x10-3 m/s. Finer sands approximately 1x10-3 to 1x10-4, and fine grained soils such as silty sands may be in the range of 1x10-5 to 1x10-7 m/s. Very fine grained cohesive clay soils have very low hydraulic conductivity values ranging from 1x10-7 to 1x10-13 m/s.
What are the uses of tar sand?
Tar sands are primarily used for producing synthetic crude oil through a process called bitumen extraction. The extracted oil can be refined into various petroleum products such as gasoline, diesel, and jet fuel. Tar sands also have industrial uses in producing asphalt and bitumen for road construction.
What type of resources does tar sands come from?
Tar sands or oil sands are consist of clay, sand, water, and bitumen. Its bitumen content is extracted and separated to purify it into oil.
How are oil sands formed?
Oil sands are formed from a mixture of sand, water, clay, and bitumen - a heavy oil. Over millions of years, organic material decays and the bitumen collects in sand and silt deposits, creating oil sands. Heat and pressure further transform the bitumen into crude oil.
Can you describe what the oil sands are and how oil is taken out of them?
Hi Oil sands are also called tar sands or bituminous sand. To separate the Bitumen from the sand and form the bitumen oil, instead of steam, hydrocarbon solvents are injected into the sands. This is considered to be a better energy efficient system than using steam. It has environmental costs, and transport costs as it is thick. It has to be transported by road rather than pipe.
What are oil sands?
Oil sands are deposits of bitumen, sand, clay and water. Bitumen is a heavy, viscous oil that at room temperature is a lot like cold molasses. The bitumen must be diluted with lighter hydrocarbons before it is usable by refineries to produce gasoline and diesel fuels.
What is a mixture of clay and sand with bitumen could replace petroleum one day?
The mixture of clay, sand, and bitumen that you mention is normally known as tar sand, and there are large deposits of it in the Canadian province of Alberta, as well as a few other locations. The bitumen can be extracted from the mixture and can then be refined into petroleum products such as gasoline, etc. This is more expensive than using oil from oil wells, however, in a world of very high and ever increasing oil prices, the exploitation of tar sands has become economically viable.
How do you get oil from tar sands?
Extracting petroleum from tar sands is much more complex than the traditional way of recovering oil. There are two processes that have to be completed to extract the bitumen (the desired oil) from the tar sands: extraction and separation. After extraction, the bitumen has to be upgraded before it is refined. Finally, because bitumen is so thick it has to be diluted by hydrocarbons for it to be transported by pipelines. Open pit mining is one technique for which tar sands, near the surface, can be recovered. Large electrical or hydraulic shovels are used to dig up the tar sands and then dumped into a truck that carries it to an extraction plant. In this plant, the sands are placed in a hot water process which separates, in the separation cells, the elements of the tar sands. First, hot water is mixed with the sand and then piped into the extraction place where it is agitated. This agitation along with the hot water causes the bitumen in the tar sand to stick to the tiny air bubbles and floats to the top of the separation vessels. The bitumen is then skimmed off of the air bubbles and processed until the water (and/or any other solids) is removed. This bitumen is then to be upgraded and refined into synthetic crude oil. For tar sand deposits that are buried deep below the surface, the in-situ production methods is used to recover it. Techniques used to recover deeply buried oil sands include steam injection, firefloods and solvent injection. Steam injection is the most favoured method. These methods, however, requires a lot of water and energy.
How do you use word extract in a sentence?
The process used to extract oil from the oil sands in northern Canada is very costly. - Extract is a verb that means "To remove or take out by special means or by force." I use vanilla and orange extract when I bake a cake. - Extract is a noun: To withdraw (as a juice or fraction) by physical or chemical process
What is the Athabasca oil sands?
The Athabasca oil sands are large deposits of bitumen, a heavy and unconventional oil found in Northern Alberta, Canada. These reserves are one of the largest sources of oil in the world, but extracting and processing bitumen is resource-intensive and has environmental implications.
What are the Athabasca Tar Sands?
The Athabasca Tar Sands, also known as the Athabasca oil sands, are deposits of bitumen in Alberta, Canada. They are a major source of unconventional oil production but are controversial due to environmental concerns surrounding their extraction process, which is energy-intensive and produces high levels of greenhouse gas emissions.
How is orimulsion formed?
Orimulsion is formed by blending natural bitumen, a heavy crude oil, with water and a small amount of surfactant to create a stable emulsion. The bitumen is usually extracted from tar sands or oil sands, and the resulting mixture has a high energy content that can be used as a fuel for power generation.
What are the pros and cons of tar sands?
pros they have alot of oil in them cons there expensive to extract , there hard to extract
