Viscosity is a measure of flow resistance. Rheology refer to the determination of the flow behaviour of a fluid under gravity or under a given force, e.g. injection of thermoset resin into tiny channels in rock for sealing purpose.
Viscosity can be monitored by cappilary viscometers, rotational viscometer or with a rheometer.
Rheometers are very convenient since it is possible to measure the viscosity from very low (0.001/s) to very high shear rates (1000/s) which gives the viscosity function in one single measurement.
The viscosity function can be used in a simulation model to predict the flow behaviour e.g. the pressure drop during flow in tubings, the pump pressure requried to achieve a certain flow rate among others.
Analysis & Characterisation
Stability and lifetime
Simulation & Modeling