Sidetrack inside casing is a very effective way to exploit the residual gas with low cost.
套管内侧钻是低成本开发剩余油气的有效途径.
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Seeking and development of residual gas are the keys to enhance the recovery ratio.
寻找和开发剩余油气藏是提高采收率的关键.
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It is shown that the recycling of residual gas can create great economic efficiency.
结果表明含氢尾气的回收可以创造极大的经济效益.
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