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Permeability, unlike porosity, saturation, and lithology, is, arguably, impossible to infer from well data. Yet, it is the key parameter in reservoir simulation and also in well completion and stimulation decisions. The traditional method of obtaining permeability is in the physical laboratory where a pressure difference (ΔP) is applied to the opposite sides of a regularly shaped rock sample and the volumetric flux (Q) of the fluid is measured.
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Tölke et al. (2010) studied this question.
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