A B C D E F G H I J K L M N O P R S T U V Z W

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Secondary processing – further processing of products which were produced by primary refining of crude oil (by atmospheric distillation); chemical processes which change the structure of hydrocarbon molecules, producing final products for the market.

Secondary methods – methods of depleting oil/petroleum reservoirs for the purpose of increasing the oil/petroleum recovery from the reservoir, when the reservoir has no longer enough energy to suppress oil/petroleum through the pore/inter-terrestrial space up to the well; additional energy is introduced into the reservoir by injecting water or natural gas.

Separator container/vessel for separating particular phases (steam phase – liquid phase).

Stripping the elimination of volatile hydrocarbons from particular fractions with vapour, inert gas or by heating in order to reach the desired fraction quality.

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