Viscosity Conversion of Viscometer Viscosity to Macroscopic Flow Viscosity of Non-Newtonian Fluid

摘要

In porous media, fluid flows through mesh structure made uprnof micro-braided capillary. Its flow state is similar to the flowrnin capillary. For Non-Newtonian fluid, we consideredrnviscosity changes with shear strain rate (transformed tornpressure difference) in reservoir simulator. It directly usesrnrhelogical relationship measured by viscometers, but it doesn'trnconsider flow factor in micro-pore. Therefore for Non-rnNewtonian fluid we educed viscosity transfer relationshiprnbetween macro- viscosity (viscometer rhelogical formula) andrnapparent viscosity (flow in capillary), it can be used inrnreservoir simulator, and it can reflect the difference betweenrnmicro-flow and the normal flow.