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砂岩油藏的开发中,对油井临界产量和无水采油期等方面的研究都较为深入,但对油井见水后合理的生产压差的优化方法却研究不够。为此,在系统试井方法的基础上,提出了整个油藏作为研究对象,根据油井综合含水率上升的总体特点,把含水率划分为几个阶段,研究各个阶段含水上升速度与生产压差的相互关系,从而确定不同含水率阶段油井的合理生产压差的新方法。这种方法在曲9馆陶段油藏应用中见到了良好的效果。
In the development of sandstone reservoirs, the research on the critical well production and the dry recovery period of oil well are all in-depth. However, there is not enough research on the optimization method of reasonable production pressure difference after the wells see water. Therefore, based on the well testing method, the whole reservoir is put forward as the research object. According to the overall characteristics of the comprehensive water cut in the oil well, the water cut is divided into several stages to study the relationship between the water cut rising speed and the production pressure difference So as to determine a new method of reasonable production pressure difference for oil well with different moisture content. This method has a good effect in the application of Guantao reservoir in Qu 9.