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统计分析国内外 47个结束稳产期的油田实际资料 ,研究了油田稳产期的特征和一般规律 ,应用统计预测方法建立了稳产时间与稳产阶段采油速率、稳产时间与剩余可采储量采油速率的定量关系。只要能确定合理的采油速率 ,就可以保证油田较长时间稳产 ,认为保持可采储量采油速率 2 .5 %、剩余可采储量采油速率 8% ,是油田至少稳产 1 0a的界限经验值。从油藏工程原理出发 ,依据油田开发特点 ,研究了确定保持油田稳产的合理采油 (液 )速率的方法 ,对埕北油田、大庆油田进行了实例分析。图 3表 1参 4
The statistical data of 47 domestic and overseas oilfields with stable production are statistically analyzed. The characteristics and general laws of the stable production period of the oilfield are studied. The statistical methods are used to establish the stable production time and steady oil production rate, stable production time and residual recoverable oil recovery rate relationship. As long as a reasonable oil recovery rate can be determined, it is possible to ensure stable oil production over a long period of time. It is considered that maintaining an oil recovery rate of 2.5% for recoverable reserves and an oil recovery rate of 8% for remaining recoverable reserves is an empirical limit of at least 10 years. Based on the principle of reservoir engineering and according to the characteristics of oilfield development, the method of determining the reasonable oil recovery (liquid) rate for maintaining stable production in the oilfield has been studied, and the case studies of Taobei Oilfield and Daqing Oilfield have been carried out. Figure 3 Table 1 reference 4