Unlike the inland artificial lift system, the offshore artificial lift system is equipped with packers in order to prevent oil from overflow.
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- 海上机械采油系统为了防止油井意外溢油在一定的井深加了封隔器,其动液面无法用回声仪测量,故不能采用传统的机械采油系统效率测试与计算方法。