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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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secondary energy
secondary enlargement
secondary enriched zone in tailings pond
secondary entry
Secondary environment
secondary environment
secondary extinction
secondary fan
secondary fermentation
secondary field
secondary fissure
secondary flow
secondary fluctuation
secondary flux of atomspheric γ-rays
secondary flux of cosmic rays
secondary focal point
secondary focus
secondary forest
secondary fragment
secondary gain
secondary glaucoma
secondary group
secondary growth
secondary hardening
secondary harmonic generation
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更新时间:2026/4/15 12:30:29