The main characteristics of Gunan 131 fault block oil reservoir in Gudao oilfield are deep burial, low permeability, difficult water injection, low recovery percent and low recovery efficiency.

孤岛油田孤南131断块油藏的主要特征是埋藏深、渗透率低、注水困难、采出程度低、采收率低。

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Waterflood system efficiencies are made up with the average operation efficiency of motors, water injection pumps and pipe networks.

注水系统效率由电机平均运行效率、注水泵平均运行效率和管网运行平均效率组成。

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Methods of inspectiong and calculating the efficiency of water injection system in Shengli Oilfield are introduced.

介绍了胜利油田注水系统效率统计测试计算方法。

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