What 2 elements are the components of petroleum?

Answer 1

In its strictest sense, petroleum includes only crude oil, but in common usage it includes all liquid, gaseous, and solid (e.g., paraffin)hydrocarbons. Under surface pressure and temperature conditions, lighter hydrocarbons methane, ethane, propane and butane occur as gases, while pentane and heavier ones are in the form of liquids or solids. However, in an underground oil reservoir the proportions of gas, liquid, and solid depend on subsurface conditions and on the phase diagram of the petroleum mixture.[8]

An oil well produces predominantly crude oil, with some natural gas dissolved in it. Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered (or burned) as associated gas or solution gas. A gas well produces predominantly natural gas. However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state. At surface conditions these will condense out of the gas to form natural gas condensate, often shortened to condensate. Condensate resembles petrol in appearance and is similar in composition to some volatile light crude oils.

The proportion of light hydrocarbons in the petroleum mixture varies greatly among different oil fields, ranging from as much as 97% by weight in the lighter oils to as little as 50% in the heavier oils and bitumens.

The hydrocarbons in crude oil are mostly alkanes, cycloalkanes and various aromatic hydrocarbons while the other organic compounds contain nitrogen, oxygen and sulfur, and trace amounts of metals such as iron, nickel, copper and vanadium. The exact molecular composition varies widely from formation to formation but the proportion of chemical elements vary over fairly narrow limits as follows:[9]Composition by weightElementPercent rangeCarbon83 to 87%Hydrogen10 to 14%Nitrogen0.1 to 2%Oxygen0.05 to 1.5%Sulfur0.05 to 6.0%Metals< 0.1%

Answer 2

Petroleum Geosciences and Engineering

- Programme Components

The MSc programme in Petroleum Geosciences and Engineering has a duration of five years.

1st and 2nd years

The first two years will provide a theoretical grounding in natural science, geosciences and information technology.

3rd year

After two years you choose your specialization: (1) Petroleum Geosciences, or (2) Petroleum Engineering.

4th and 5th years

The two final years of the programme, you specialize within one of the six main profiles. Your choice should be based on you personal interests and what kind of work you would like after your studies.

OK N VA?

Answer 3

Petroleum refers to a complex mixture of hydrocarbons and other chemicals. It is composed of paraffins, naphthenes, aromatics, asphaltics and some organic molecules such as carbon, hydrogen, oxygen and nitrogen.

Answer 4

Petroleum is a mixture of hydrocarbons and is composed almost entirely of the elements hydrogen and carbon. Trace contaminants can also be present.

Petroleum is generally thought of as hydrocarbons - which, by definition, are molecules made up of hydrogen and carbon. Petroleum also includes other elements, either as part of modified hydrocarbon molecules or as solutes and/or contaminants. Some of the common additional elements are oxygen, nitrogen, sulfur, noble gases (helium, neon, argon, xenon, radon), chlorine (think chlorophyll and the plants that are supposed to be some of the origin of petroleum) and (in trace amounts) metals like iron, lead, nickel, magnesium, vanadium, molybdenum, cobalt, zinc, uranium, sodium, etc. (think dirt).

Answer 5

crude oil for petroleum

carbon for coal

they are the constituents of fossil fuels

Answer 6

there are more than two elements in petroleum, but all petroleum products ar composed of mostly Carbon, Hydrogen, and Oxygen