坪北油田储层随机建模及结果检验

Stochastic modeling for the reservoir rocks of the Pingbei Oil Field, northern Shaanxi

摘要: 在坪北油田沉积微相和高分辨率层序地层学研究的基础上,采用顺序指示模拟方法以中期旋回为单位建立沉积微相的三维模型。结合层序地层学研究的结果对模拟结果进行检验,把不同时间单元的沉积微相平面分布提取出来,根据时间的先后顺序进行排列,甚至做成动画,对沉积微相的演化得到直观的认识。结合基准面在此期间的变化情况,进而判断模拟结果的合理性,为模拟结果的判断提供了新手段。

Abstract: In terms of the studies of sedimentary microfacies and high-resolution sequence stratigraphy, a kind of sequence modeling technique may be used for the construction of the three-dimensional sedimentary microfacies models. By taking a mid-period cycle as a unit, the planar distribution of the sedimentary microfacies in different units are aligned according to time sequences and even can be drawn into animated cartoons. Then the modeled results may be tested in the light of sequence stratigraphic data and thus will improve our understanding of the evolution of sedimentary facies.