问答题

简答题翻译：Petroleum may be defined as a naturally occuring, complex mixture of hydrocarbons which may be either gas, liquid, or solid, depending on its own unique composition and the pressure and temperature at which it is confined.

【参考答案】

石油可能被解释成一种天然生成的包括气态烃、液态烃、固态烃的混合物，这种混合物是在严格的温度压力下生成的，具有独特的组成。

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翻译：For an oil reservoir, as pressure decreases with production, a value is reached at which a portion of the liquid vaporizes to produce a gas phase that then exists in equilibrium with liquid.

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翻译：The production rate of free gas at reservoir conditions is therefore the product of the difference (R - Rs) times the surface production rate of oil times the gas formation volume factorBg.

简答题 翻译：Petroleum may be defined as a naturally occuring, complex mixture of hydrocarbons which may be either gas, liquid, or solid, depending on its own unique composition and the pressure and temperature at which it is confined.