Integrated Study of 3D Gas Reservoir Geological Modeling of North in Su11 Block

Abstract

As the reservoir heterogeneity causes that the production accumulation of gas well has the large differences among gas wells and the gas production of a few wells decline fast, the 3D gas reservoir modeling is used for the reservoir heterogeneity characterization. By the 3D gas reservoir modeling of integrating the geological facies information into the facies modeling, a reasonable model of He8 and Shan1 formation was built, which includes the structural model, the facies model, and the reservoir properties model. Based on the model analysis, the gas sandstone belt distribution lies along the direction of from north to south. The gas sandstone in the 4, 5, 6 small layers of He8 and the 8 small layer of Shan1 is better than others. The horizontal well positions were proposed in the study area with better gas sandstone in the 3D gas reservoir model.