Effects of permeability anisotropy and layering on well test interpretation

Permeability anisotropy and layering, though not directly related have analogous effects on well test interpretation. Both provide pressure responses that may be virtually indistinguishable from those of homogeneous, isotropic, single-layer systems. Both have pressure responses that are easily predicted if the reservoir description is known. Further, both require additional measurements or information beyond that normally gathered for a pressure transient test to identify and characterize the anisotropy of layer properties.

Effects of permeability anisotropy and layering on well test interpretation Academic Article