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二级井控技术
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二级井控技术
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工学
二级井控技术
释
secondary well control technology
二级井控技术
当一级井控失效后,井内的液柱压力小于地层压力,井底处于欠平衡状态,此时采取关井,控制节流阀的开度等措施实现节流循环,在井口造成一定的回压,利用该回压与井内剩余液柱压力之和平衡地层压力,抑制地层流体向井内的侵入,同时将井内的地层流体排出、重浆压井,从而重建井眼与地层之间平衡关系,恢复正常钻井作业的井控技术。
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randomization model
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randomized communication complexity
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randomized computation
randomized controlled trial
randomized decision function
randomized decision rule
randomized decision trees
randomized estimate
randomized estimator
randomized experimental method
randomized experiment research
randomized function
randomized incremental construction
randomized logspace computation
randomized parallel algorithm
randomized procedure
randomized reduction
randomized response technique
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