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针对五1克上组油藏测井系列多、测井年代跨度大、数据处理复杂、大多数井无孔隙度测井、缺少真电阻率测井等复杂问题,通过岩心刻度测井原则,利用统计学原理,采用Gauss函数通过标准层对所需的测井曲线进行校正;利用相关性理论克服围岩对侧向电阻率测井的屏蔽效应,获取地层真电阻率;将沃尔法与油藏四性统计结果相结合,合理确定油藏渗透率、孔隙度和孔喉半径的下限值;利用所建立的孔隙度、渗透率、泥质含量和含油饱和度模型进行测井精细解释,其结果与实际生产情况吻合,适用性较好,方法可行、可靠,具有工程应用价值。
In view of the complicated logging sequences of the 5-1 g reservoirs in the Upper Member, large span of well logging, complicated data processing, non-porosity logging in most wells and lack of true resistivity logging, the core logging logging principle is utilized According to the principle of statistics, the Gaussian function is used to correct the required logging curve through the standard layer; the relativity theory is used to overcome the shielding effect of the surrounding rock on the lateral resistivity log to obtain the real resistivity of the formation; The combination of the results of Tibetan quadruplex statistics, the lower limit of reservoir permeability, porosity and pore throat radius can be reasonably determined; the well logging interpretation is made by using the established porosity, permeability, clay content and oil saturation model, The results are consistent with the actual production, applicability is better, the method is feasible, reliable, and has engineering application value.