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Many crude oils flow very easily, but this is not true in all cases. I will address the problem of oil flowing from the bottom of the well to surface. Sometimes, the reservoir rock is too tight (insufficient permeability) to allow the oil to flow at substantial rates. The well must be stimulated, frequently with acid or hydraulic facturing.
The oil may be too viscous to flow. This is a common problem if the oil density is less than 15 degrees API. Crude oil is a complex mixture of many compounds. Strong cohesive forces (atttractive forces among molecules) result in high viscosity. The oil may be heated using steam to reduce the viscosity. Steam flooding is common in California.
Wax and asphaltene precipitation may also prevent oil from flowing. You may find more links on this topic by doing an internet search.
What else can I help you with?
How is crude oil excavated?
Crude oil is excavated by drilling wells into underground reservoirs where the oil is trapped. Once a well is drilled, the pressure underground allows the oil to flow up through the well to the surface. The oil is then collected and transported for refining.
Does crude oil have a low viscosity fraction?
Yes, crude oil contains various fractions with different viscosities. Some fractions, such as light crude oil, have low viscosity, while others, such as heavy crude oil, have high viscosity. The viscosity of crude oil can affect its flow characteristics and processing requirements.
What country does Canada trade crude oil with?
Almost all of Canada's exported oil goes to the US. Crude is easily transported by pipelines. See related links.
What are the properties of crude oil vapour?
Crude oil vapour is volatile, meaning it easily evaporates at relatively low temperatures. It is flammable and can form explosive mixtures with air. Inhaling crude oil vapour can be harmful to human health, causing respiratory irritation and other health effects.
How crude oil is extracted?
Crude oil is extracted by drilling wells, but oil sand deposits are strip mined or made to flow into producing wells by in situ techniques which reduce the bitumen's viscosity with steam and/or solvents.
What is Nigeria's position in the world in producing crude oil?
Crude oil is crude..
What is crude oil used for in the US?
US has large number of skilled manpower and can easily refine it so.
What can you do with crude oil?
What other thing you can do with crude oil.
Why is crude oil known as crude?
Crude Oil is hydrocarbon and it is mixture of carbon and hydrogen.
How many gallons of gasoline are there in a barrel of crude oil?
Zero. A barrel or crude oil contains... crude oil.
What is the major element in crude oil?
the constituents of crude oil are FEUL OIL,LPG, NAPHTHA,GASOLNE ETC
How is crude oil used by humans?
crude oil is ba
