Abstract: This research mainly from the reservoir property of dense oil reservoir characteristics, reservoir microscopic pore structure characteristics, microscopic pore structure and reservoir percolation characteristics and so on three aspects of the study area reservoir microscopic pore structure characteristics were integrated and comprehensive study. Summarized the distribution of reservoir pore structure in the study area, and from the vertical reservoir porosity and permeability distribution were analyzed, and concluded that the physical properties of the reservoir are mainly influenced by lithology.