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sidetrack drilling
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井眼轨迹控制
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sidetrack drilling
侧钻
在原有井眼(直井、定向井、水平井均可)的基础上,使用专用工具使钻头的钻进轨迹偏离原井眼形成新井眼的工艺。
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theory of cardinals
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theory of chemical reactivity
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theory of city life cycle
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theory of cognitive vulnerability for depression
theory of combinations
theory of commitance
theory of communication
theory of communication effect
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theory of complex multiplication
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