Abstract: A new comprehensive method for predicting reservoir microfacies by integrating multiple stochastic modeling methods was presented.The high-resolution reservoir microfacies model was constructed with the object-based methods which can show the crisp shape of microfacies and with the pixel-based methods which can reproduce the complex distribution of microfacies.A high-precision reservoir geological model was established,and a general modeling flowchart was given.Taking the subaqueous fan reservoir of Pucheng Oilfield in Dongpu Depression as an example,the object-based stochastic modeling method was integrated with the pixel-based sequential indicator stochastic modeling method to construct the microfacies distribution model of Es₃² in Pucheng Oilfield.The modeling result is well matched with the real distribution of the reservoir microfacies of Pucheng Oilfield.

Key words: reservoir geological model, stochastic modeling method, sedimentary microfacies, reservoir prediction, Pucheng Oilfield

摘要： 提出了将多种随机建模方法综合预测储层微相的新方法.该方法是利用基于目标的方法较好地再现了简单几何形态目标分布的特点;基于象元的方法再现了复杂空间展布目标的特点.建立了反映实际储层微相分布的高精度储层地质模型,给出了具体建模流程.以濮城油田水下扇储层为例,将基于目标的储层目标层次建模方法与基于象元的序贯指示建模方法相结合,从而获得濮城油田沙三中亚段微相储层地质模型.模拟结果检验表明,建模效果较好.

关键词: 储层地质模型, 随机建模方法, 沉积微相, 储层预测, 濮城油田