在原油销售前，气体、水和其它杂质必须脱除(水和其它杂质统称底部沉积物和水)，这种分离过程称为原油处理。
The gas, water, and other impurities (known as basic sediment and water) must be removed before selling the oil. This separation process is called oil treating.
石油和天然气的密度都比水小，所以二者通常会浮在被水浸泡的岩石和沉积物的表层。
Both oil and gas are less dense than water, so they generally tend to rise upward through water-saturated rock and sediment.
潮滩沉积物的粒度参数可以用来反映沉积物沉积的水动力、沉积物来源和沉积物搬运趋势等环境信息。
Grain size parameters of intertidal flat sediments are related to local sedimentary environments, such as depositional hydrodynamic conditions, sediment sources, sediment transport, etc.
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