| The study area is located in the northwest part of Sulige gas field,The domain structure belong to the northern belt of the Shanbei slope on the Ordos basin.Gas-bearing series of SuX is He 8 and Shan 2 member of permian system.During the study,the target layers are divided into three layers of He8 upper?He8 down?Shan1 and 9 small layers through the method of comparison of depositional cycle,and basic on the theory of sequence straum,sedimentology and field geophysics,and the integrated use of the information like core,logging,well logging and data testing with the tools of Geomap,Forward,Petrel,CMG.Through the method of logging sedimentary facies and core facies analysis,analyzing the single well facies and researching the characteristics of the profile of sedimentary facies and plane distribution,the target layers He8 memeber is braided river deposition,and Shan1 member is meandering stream deposit.Describe the characteristics of reservoir from deveral aspects of Reservoir petrology characteristics,characteristics of the reservoir physical property,reservoir pore structure characteristics and reservoir characteristics of filler content.Through the anisotropy analysis of reservoir,the inlayer macro heterogeneity is intermediate,the interlayer macro heterogeneity is intermediate.The macro heterogeneity is relatively strong from the analysis of the each layers' plane heterogeneity and the Sedimentary sand body physical property and heterogeneity coefficient plane distribution characteristics of each layers.On the basis of the above research,Structural model and property model is established through the mathod of interpolation and based on the geological hierarchical data.Eventually the study of reservoir geologic model is finished,and provides a reliable geological basic data for the research of oil field development plan. |
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