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介绍了大庆油田高含水后期细分注水技术与实践，对“两小一防”（小夹层、小卡距，防止在测压时封隔器上部高压向低压层窜动）细分注水技术和液力投捞细分注水技术从管柱的结构、井下工具原理、性能、参数以及配套技术的应用等方面进行了比较系统的阐述。实践证明，该项技术的研究与应用，提高了可采储量的动用程度，产生了巨大的经济和社会效益。
The technology and practice of subdivision water injection in high water cut stage of Daqing Oilfield are introduced. The technology of subdivision and water injection for “two small and one small prevention” Hydraulic subdivision subdivision water injection technology from the column structure, the principle of downhole tools, performance, parameters and the application of supporting technology and other aspects of a more systematic exposition. Practice has proved that the research and application of this technology has increased the utilization of recoverable reserves and has brought tremendous economic and social benefits.