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tripping and filling drilling fluid unit
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tripping and filling drilling fluid unit
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井控设备
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tripping and filling drilling fluid unit
起钻灌钻井液装置
钻井起钻过程中为保持静液柱与地层压力平衡,避免溢流、井涌、井喷等事故,当起出部分钻具造成井内液面下降、静液柱压力降低时及时向井内灌注钻井液重建压力平衡的一类油田安全装置。
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