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阀式连续循环钻井系统
释义
阀式连续循环钻井系统
Encyclopedia
工学
控压钻井
释
continuous circulation valve—CCV
阀式连续循环钻井系统
地面控制系统与接在钻杆上的连续循环阀联合作用,实现在接单根期间钻井液循环通道的切换,进而保持井下钻井液连续循环的特殊钻井作业设备组合。
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conception
conception channel
conception index
Conception of Management of Stated-owned Information Resources(2000)
conception of society and history
Conception of State Regulation and Control of Non-State-Owned Information Resources
conception rate
conception vessel
concept learning
concept map
concept of ecological values
concept of magnetism
concept of nagnetism
concept of taking photography as a weapon
concept phase
concept planning
concept retrieval
conceptual
Conceptual Art
conceptual blending theory
conceptual change
Conceptual decolonization
conceptual definition
conceptual density functional theory
Conceptual Dependency Theory
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