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在储集层随机建模中 ,相建模 (建立储集层结构模型的过程 )是参数建模的基础 ,二步建模法 (two stagesimulation)已被普遍采用。要为参数建模输送合理的相模型 ,使所建相模型忠实于密井网区的井资料 ,除选择相建模方法外 ,优选和验证相模型是关键之一。归纳出相模型验证和实现优选的原则有 :与实际地质体符合 ,抽稀井后的实现接近密井网实现 (或原模型 ) ,相控的参数建模合理 ,与动态资料符合。在ST油田ST2区沙二段S砂层组S4小层 (主要是分支河道和河道间微相沉积 )相模型建立过程中 ,通过地质分析、抽稀井分析、生产动态资料分析 ,按以上原则优选出最佳的模拟实现 ,取心资料、测井资料或地震资料、生产动态资料验证了所选择的相模型是合理的。图 3参2
In stochastic modeling of reservoirs, phase modeling (the process of establishing reservoir structure models) is the basis of parametric modeling, and two stagesimulation has been widely adopted. In order to model the parameters for the transmission of a reasonable phase model so that the phase model is faithful to well data in the tight well network, the selection and phase modeling method is one of the key issues. The principles of phase model validation and optimization are summarized as follows: the actual geological body is consistent with the actual geologic body, and the realization after pumping the well is close to the realization of the well pattern (or the original model). The phase control parameters are modeled reasonably and agree with the dynamic data. In the process of establishing the phase model of S4 sub-layer (mainly the sedimentary microfacies of the branch channel and the inter-channel) in the second member of the S sand formation in the second member of Shahejie Formation of ST2, ST2, through the analysis of geological analysis, pumping dilute well analysis and production dynamic data analysis, Optimum simulation results, coring data, well logs or seismic data are preferred and production of dynamic data verifies that the selected phase model is reasonable. Figure 3 Reference 2