Abstract: Continental reservoir rocks are normally of serious heterogeneity, and different block areas or different horizons are of different permeabilities. They are hardly described with same type permeability models, but differentiating them. By utilizing flowing zone index(Im), the sixth pay zone group(E2S) in Zhengwu oilfield is divided into four types of flowing units, each representing the different lithologic and physical properties. This paper makes development of well log interpretation models with different permeabilities in different types of flowing units, which can give higher accuracy of permeability parameters, reflect sedimentary characteristics and heterogeneity in detail and provide reliable related parameters for geologic model development.

Key words: Reservoir, Heterogeneity, Permeability, Model, Study