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油田进入开发中后期,开发重点由Ⅰ类储层向Ⅱ、Ⅲ类储层转移,层间干扰、注水困难是油藏开发的一个难题,为了实现精细注水开发,有必要对小层分层启动压力进行研究,尤其是在非均质性严重油藏。本文介绍了延长油田西区采油厂启动压力的四种确定方法以及其优缺点,其中氧活化测试资料在确定小层注水启动压力具有快速、直观、准确的优势。
In the middle and late stages of oilfield development, the development focuses on the migration from type I reservoirs to type II and III reservoirs. Interlayer interference and water flooding are difficult problems for oil reservoir development. In order to achieve fine water flooding development, it is necessary to start stratification of small strata Pressure is studied, especially in highly heterogeneous reservoirs. This paper introduces four methods to determine the starting pressure of the oil recovery plant in the western area of the oilfield, as well as their advantages and disadvantages. Among them, the oxygen activation test data has the advantages of rapid, intuitive and accurate determination of the starting pressure of the injection of small layers.