− | | Apply information from Step 1 to the porosity–permeability–grain size plot (predicting-reservoir-system-quality-and-performance_fig9-60.png[[:file:Figure 1]]). Use porosity and grain size from sandstone to estimate the permeability on the chart. | + | | Apply information from Step 1 to the porosity–permeability–grain size plot ([[:file:predicting-reservoir-system-quality-and-performance_fig9-60.png|Figure 1]]). Use porosity and grain size from sandstone to estimate the permeability on the chart. |