随机建模中相模型的优选验证原则

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S

The principles of selecting and testifying facies models in stochastic modelling

The two stage simulation is widely accepted in the stochastic modelling. How to input a suitable facies model to parameter modelling, selecting and testifying facies models are critical to stochastic modelling, in addition to selecting facies modelling method. The paper proposed the principles of selecting and testifying facies models, i.e. the principle of fitting to the geological phenomena, the principle of the realization by wide spacing wells closing to the dense spacing well original facies model, the principle of reasonablely facies controlled parameter modelling, and the principle of fitting to petroleum production data. The S 4 bed in Sha2 Member of Shahejie Formation, ST oil field is selected as an example of selecting a facies model from many facies modelling realizations and testifying the selected facies model by the core data, the well logging data and the petroleum production data.