A new method for determining the equivalent permeability of a cleat dominated coal sample

A simplified flow model, rather than a complex geological model, is usually used for yield prediction and history matching in petroleum industry. The gap between these two models is often bridged in practice by upscaling. Equivalent permeability is an extremely significant parameter for upscaling a coal geological model. However, how to obtain an accurate equivalent permeability is still a scientific challenge because of the unique...