The purpose of this article is to review the various methods used to calculate the equivalent
permeability of a heterogeneous porous medium. It shows how equivalence is defined by …

Hydraulic conductivity upscaling is a process that transforms a grid of hydraulic
conductivities defined at the scale of the measurements, into a coarser grid of block …

A new technique for generating coarse scale models of highly heterogeneous subsurface
formations is developed and applied. The method uses generic global coarse scale …

A variety of approaches for gridding and upscaling of detailed geocellular models for flow
simulation are reviewed. Local, extended local, global and quasi global techniques for the …

Heterogeneity is the single most salient feature of hydrogeology. An enormous amount of
work has been devoted during the last 30 years to addressing this issue. Our objective is to …

▪ Abstract Efficiently and accurately solving the equations governing fluid flow in oil
reservoirs is very challenging because of the complex geological environment and the …

This text combines the science and engineering of hydrogeology in an accessible,
innovative style. As well as providing physical descriptions and characterisations of …

Shales will play an important role in the successful transition of energy from fossil-based
resources to renewables in the coming decades. Aside from being a significant source of …

A new technique for upscaling highly variable permeability descriptions is developed and
demonstrated. The method provides coarse scale numerical properties (transmissibilities) …

Using a range of realistic 3D numerical lithofacies (dm-scale) models of ripple laminated
sandstone intercalated with mudstone we evaluate how single-phase permeability varies as …