Formation-Wellbore Pressure Balanced 井内压力平衡
wellbore pressure balanced
井筒压力平衡
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Calculation results show that they accurately reveal the distribution pattern of pressure in wellbore during under-balanced drilling operation.
计算结果表明，该套公式较为精确地模拟了欠平衡钻井过程中井眼压力分布的规律。
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