“underbalanced accurate pressure control drilling”的概念、定义、翻译、参考文献-科学参考

单词	underbalanced accurate pressure control drilling
释义	underbalanced accurate pressure control drilling Encyclopedia 工学控压钻井释 underbalanced accurate pressure control drilling欠平衡精细控压钻井控制井底压力与地层压力的差值，保持钻井液循环系统出入口体积流量差在一个稳定范围，最大限度实现发现和保护油气层的目的，同时有效保持井筒稳定的欠平衡钻井技术。
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