排烃效率 meaning in English

expulsive efficiency

The hydrocarbon expulsion efficiency of source rockprimary migration is usually high because of its property of natural drive
因油气初次运移为自然驱替，因此源岩的排烃效率较高。
Lower cretaceous bayingebi group had higher organic abundance , generating hydrocarbon intensity and hydrocarbon expulsion efficiency . there were petroleum migration and accumulation in three phases through the analysis of fluid inclusion
下白垩统巴音戈壁组二段具有较高的有机质丰度、生烃强度和排烃效率，由流体包裹体分析查干凹陷存在三期油气运聚史。