oa Importance of Capillary Hysteresis on Coreflood Experiments

Coreflood experiments for obtaining relative permeability curves are often subjected to capillary effect which is neglected in the laboratory data interpretation. Due to the well-known capillary end-effect the water saturation distribution prior to start of a flooding experiment is often non-uniform. In addition the saturation at different location of the core has experienced different saturation history, which might make hvsteresis effect significant in the final relative permeability curves.