The results show that oil recovery can be enhanced effectively by gravity drive of crestal nitrogen injection for increasing oil production and decreasing water cut.

研究结果表明，气顶油藏顶部注氮气重力驱可以有效地提高采收率，达到降水增油的效果；

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The drive mechanism includes three types: compaction drive, gravity drive and density (heat convection) drive. Their foundational features and lithological information are very different.

盆地流体的驱动机制包括压实驱动、重力驱动和密度(热对流)驱动三种机制，其基本特征及岩石学记录各有不同。

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In view of reservoir properties and development characteristics in Oubei block of Jiangsu Oilfield, a numerical simulation model of gravity drive of crestal nitrogen injection was established.

针对江苏油田欧北区块的地质条件和开发现状，建立了顶部注氮气重力驱数值模型。

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From inspiring Newton's theory of gravity to the wassail ceremonies that drive evil spirits from the trees each January, the orchard has long been a place of quiet contemplation and a very British kind of magic.

BBC: England's West Country: Still the apple of our eye