乌里雅斯太凹陷南洼槽T27井区腾一段Ⅲ油组砂砾岩储层地质建模

Geological Modeling of Glutenite Reservoir in Et_1 of Wellblock 21 of the South Belt of Wuliyastai Depression

乌里雅斯太凹陷南洼槽T27井区为砂砾岩储层,砂砾体分布复杂,沉积类型多样,非均质性严重。油气分布明显受沉积相控制,不同相带储层物性差异较大。为了建立符合实际地质情况的储层三维地质模型,刻画储层非均质性,采用了确定性建模与随机建模相结合的方法,建立该区的相模型。并在相控建模的基础上,采用序贯高斯模拟法确定储层属性模型,为油田下一步开发调整提供了依据。

The south depression of Wuliyastai Depression was a glutenite reservoir,the sandbody distribution was complicated,sedimentary types were variable,and heterogeneity was intensive.As the sedimentary facies obviously controlled the oil distribution,physical property of different phase belts varied greatly,the method was used which was combined with deterministic geological modeling and stochastic modeling,the three dimensional model was established reflecting underground geological situation.Based on the facies model,physical property model is built by using the stochastic methods of Sequence Guass Simulation in order to give evidence for further adjusting in the oilfield.