But, underbalanced drilling technology is not suitable for every reservoir.
但是，欠平衡钻井技术并非适用于所有的油气藏。
Finally, it provides the screening process of reservoirs based on the optimizing underbalanced drilling technology.
以优化欠平衡钻井作业为依据，提出了油气藏的筛选步骤。
Underbalanced drilling technology can increase ROP and decrease formation damage, so it is increasingly used worldwide.
欠平衡钻井技术可以降低地层损害、提高机械钻速，所以在世界范围内被逐渐采用。
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