There is an increasing demand for flow meters to be calibrated for use at elevated pressures and temperatures.
This requirement is prevalent in a range of industries. Produced oil from a reservoir can differ considerably from standard calibration laboratory conditions. The standard practice for calibrating flow meters for the oil & gas industry has been to match the fluid viscosity and, if possible, the fluid temperature and pressure. Previously matching all parameters was seldom possible due to the limitations set by the calibration facilities operating range and test fluids.