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采用高分辨率层序地层学原理对坪北油田地层进行划分和对比 ,对目的层识别出 3个中期旋回。以中期旋回为单位采用顺序指示模拟方法建立沉积微相三维模型 ,采用相控物性参数建模技术 ,利用顺序高斯模拟方法建立孔隙度、渗透率的三维模型。采用逐点比较的方法 ,抽稀检验了沉积微相三维模型 ,结果表明 ,分三种微相类型的符合率为 6 6 4 % ,只分砂泥岩的符合率为 84 % ;利用多个实现的概率分布能够较好地预测微相分布
The stratigraphy of Pingbei Oilfield is divided and compared by using high-resolution sequence stratigraphy theory, and three medium-term cycles are identified in the target layer. The sedimentary microfacies three-dimensional model was set up by means of sequential indication simulation using medium-term cycle as a unit. The phase-controlled physical parameter modeling technique was used to establish the three-dimensional model of porosity and permeability using sequential Gaussian simulation. The three-dimensional model of sedimentary microfacies was tested by the method of point-by-point comparison. The results showed that the coincidence rate of the three microfacies types was 6 6 4%, and the coincidence rate of sand and shale only was 84% The probability distribution can predict the micro-phase distribution well