Air extracting, water injection, water extraction liquid, transmission equipment and other equipment are used during oilfield exploitation, causing a large amount of energy loss of water injection system. So improving the energy saving technology of oilfield water injection system is helpful for reducing energy consumption and improving the efficiency of oilfield production. This paper mainly analyzes the energy saving technology of oilfield water injection system, and puts forward effective energy saving measures. It discusses the application scheme to strengthen the oilfield water injection system efficiency and reduce energy losses.%由于油田在开采的过程中，运用抽气、注水、抽液、输送油水等设备，注水系统就会产生大量能源的损耗，因此提高油田注水系统的节能技术，有利于减少能源的损耗，提高油田生产效率。本文重点分析了油田注水系统的各项节能技术，并提出有效的节能措施，探讨了加强油田注水系统运行效率与降低能源损耗的应用方案。
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