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呼和诺仁油田B区块南屯组砂砾岩储层岩石结构复杂、非均值性强。单一的利用测井资料来计算其储层孔隙度都会有较大的误差。因此提出多种方法来计算其储层孔隙度,根据不同的地质特征来选择不同的计算模型,所采用的计算孔隙度模型的方法有交会图法、多元回归计算方法、神经网络计算方法;对三孔隙度曲线(声波、中子、密度)都有的井,用主成分分析方法来计算孔隙度也可以取得比较好的效果。
The rock structure of glutenite reservoir of Nantun Formation in block B of Huhe Renren Oilfield is complex with strong heterogeneity. A single use of logging data to calculate the reservoir porosity will have greater error. Therefore, a variety of methods are proposed to calculate the porosity of reservoirs. Different calculation models are selected according to different geological features. The methods used to calculate porosity model are intersection graph method, multiple regression method, and neural network method. Three porosity curves (sonic, neutron, and density) are well, using the principal component analysis method to calculate the porosity can also obtain better results.