This study presents a new concept for the use of non-Darcy flow characters in reservoir characterization, development, and well performance. More than 1,000 core samples are analyzed under unsteady state flow conditions. A universal scale turbulent, factor vs. permeability is developed on the basis of the reference base-line of turbulent flow through metallic porous media. This new scale used to: 1) Classify reservoirs in terms of permeability heterogeneity, and, 2) Establish an iso-turbulence map for reservoir development by selecting adequate zones to drill new wells. In this paper, different applications for Algerian reservoirs are outlined and a new concept for the use of a turbulence factor is highlighted.