Permeability, Porosity, and Pore-Throat Size - A Three-Dimensional Perspective

摘要

Two-dimensional plots of permeability and porosity data usually exhibit scatter and have patterns that are lithology dependent. However, if three-dimensional plots of permeability, porosity, and pore-throat size are made, the origin of scatter in the two-dimensional permeability-porosity plots becomes apparent - it is the absence of information provided by pore-throat size. The purpose of this short note is to provide a graphical reminder of the dual dependence of permeability upon porosity and pore-throat size.