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在油田开发过程中,运用注水技术能够使油层压力保持在稳定状态,提高油田产油量。大庆油田注水系统的特点是注水量大、注水压力高、注水压力差别大、系统效率低,传统的不分压注水耗电量大、注水驱油效果差。分压注水是提高原有注水管网系统效率、降低能耗、改善注水驱油效果的重要途径。本文论述了分压注水的必要性及基本原理,确定了分压注水工程的基本原则、技术条件及分压注水的三种形式。
In the process of oilfield development, the use of water injection technology can maintain the pressure of the reservoir at a steady state and increase oil production. Daqing oilfield water injection system is characterized by a large amount of water injection, water injection pressure, water pressure difference, the system efficiency is low, the traditional water pressure without pressure water consumption, water flooding poor results. Partial pressure water injection is to improve the original water pipe network efficiency, reduce energy consumption and improve water flooding an important way. This paper discusses the necessity and basic principle of partial pressure water injection, and determines the basic principles and technical conditions of partial pressure water injection and the three forms of partial pressure water injection.