Prix FOB
Obtenir le dernier prix( Negotiable )
|- Minimum Order
Pays:
Russia
N ° de modèle:
-
Prix FOB:
( Negotiable )Obtenir le dernier prix
Localité:
Russia
Prix de commande minimale:
-
Commande minimale:
-
Packaging Detail:
As required
Heure de livraison:
10 to 20 days
Capacité de Fournir:
-
Payment Type:
T/T, PayPal, Other
Groupe de produits :
crude oil is a naturally occurring, flammable liquid consisting of
a complex mixture of hydrocarbons of various molecular weights and
other liquid organic compounds, that are found in geologic
formations beneath the Earth's surface. Petroleum is recovered
mostly through oil drilling. This latter stage comes after the
studies of structural geology (at the reservoir scale), sedimentary
basin analysis, reservoir characterization (mainly in terms of
porosity and permeable structures). It is refined and separated,
most easily by boiling point, into a large number of consumer
products, from petrol and kerosene to asphalt and chemical reagents
used to make plastics and pharmaceuticals. Petroleum is used
in manufacturing a wide variety of materials
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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.
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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.
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The proportion of light hydrocarbons in the petroleum mixture
varies greatly among different oil fields, ranging from as much as
*7% by weight in the lighter oils to as little as *0% in the
heavier oils and bitumens.
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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
Pays: | Russia |
N ° de modèle: | - |
Prix FOB: | ( Negotiable ) Obtenir le dernier prix |
Localité: | Russia |
Prix de commande minimale: | - |
Commande minimale: | - |
Packaging Detail: | As required |
Heure de livraison: | 10 to 20 days |
Capacité de Fournir: | - |
Payment Type: | T/T, PayPal, Other |
Groupe de produits : | Crude Oil |