Abstract: The affecting factors of the deliverability in low permeability reservoir are complex，so it is important to analyze and
evaluate these factors correctly. Combining the science of geology of petroleum，well logging，fluid mechanics and reservoir
engineering，in this paper，the dominant affecting factors of deliverability and develop efficiency in low permeability reservoir
are analyzed and evaluated，and compared and verified with actual performance of oil field. The results show that the reservoir
productivity for macro on the microfacies and flow unit. The net thickness and its reservoir permeability is the main factors that
affect reservoir deliverability，so the pattern deployment must ensure that oil wells have larger reservoir thickness，otherwise，
production wells is not high，or stable. When deploying network development wells at reservoirs of anisotropy permeability，
the distance and pattern of the wells should be optimized，so that the reservoir has a higher overall oil recovery.

Key words: low permeability, deliverability of reservoir, affecting factor, analyze and evaluate, well pattern