It means the petroleum hydrocarbons occurs naturally by the element.Main elements: carbon (C) and hydrogen (H) may have other elements, such as a sulfur (S), oxygen (O2.).Nitrogen (N2.) were mixed in. Petroleum is either solid, liquid or gas, depending on the component.Petroleum thermal energy. And the pressure on environment control, petroleum, petroleum accumulationCan be divided according to the status in nature 2 species.1. Water. Crude oil (Crude Oil).2. Natural gas (Natural Gas).Details are briefly as follows.That crude oil (Crude Oil).A natural state to the liquid. Contains hydrocarbon volatile type.Mainly divided off into 3 type. The features and types of hydrocarbon components in.1. Water. Crude oil base paraffin.2. Water. Crude oil base naphthenes).3. Water. Crude oil base mix.Oil, crude บทั้ง 3 type, used when distilled to petroleum products in different proportions.
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