A completion configuration in which a production casing string is set across the reservoir interval and perforated to allow communication between the formation and wellbore.
一种完井结构，其中的生产套管柱下过储层层段并经射孔，以便在地层与井筒之间能够连通。
It shows negative correlation between internal returns ratio and well depth, and positive correlation between interval returns ratio and daily production of single well.
数值方程显示：内部收益率与井深成负相关关系，与单井日产量成正相关关系。
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