According to reservoir classification, natural gas can be divided into gas-field gas, condensate field gas, and oilfield associated gas.
天然气按照油气藏分类可分为：气田气、凝析气田气和油田伴生气。
Among them, oilfield associated gas is carried out with crude oil in the process of production as hydrocarbons exist in form of both gas phase and fluid phase.
其中油田伴生气是指在油气藏中，烃类以液相和气相两相共存，在开采过程中伴随原油同时被采出的天然气。
A responsible person of oil production technology in Liaohe Oilfield said that associated gas had a high value in the internal production process.
辽河油田采油工艺处相关负责人表示，伴生气在内部生产环节具有很高的利用价值。
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