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传统的产量递减分析方法大多是一些经验公式,不具备完善的理论基础,而数值模拟方法所需时间较长,为了快速地预测生产井的产油量,在物质平衡和信号处理的理论基础上,简要地介绍了阻容模型及基于阻容模型的产油量模型,并对单井的产油量模型进行了改进。结果表明,基于阻容模型的产油量模型能够较好地进行历史拟合,并且仅仅需要一定数目的产液量和注入量数据就可以快速地计算出单井产油量。模型的参数大小反映了注水井与生产井间的连通程度,参数值越大,井间连通性就越好。
Traditional methods of production decline analysis are mostly empirical formulas, do not have a sound theoretical basis, and numerical simulation method takes a long time, in order to quickly predict the production of oil wells, based on the theory of material balance and signal processing , Briefly introduces the RC model and the oil production model based on the RC model, and improves the single-well oil production model. The results show that the oil production model based on the RC model can make good historical matching and the single well oil production can be calculated quickly only by a certain amount of liquid production and injection volume data. The parameter size of the model reflects the connection between the injection well and the production well. The larger the parameter value is, the better the interwell connectivity is.