Nozzle/orifice, tube, and helix Inflow Control Devices (ICDs) have been tested for flow performance at the Statoil multiphase flow loop facility in Porsgrunn, Norway. The test results are given as performance curves for single phase oil, water and gas. Two phase tests have also been run for oil/water and oil/gas. Results confirm that single phase ICD flow performance characteristics can be accurately described with a physical model, and corrected by an error function which is predominately dependent on the Reynolds Number. For the fluids tested, the gas and water cut multi-phase data exhibits reasonable correlation to the single phase loss coefficient values for nozzle/orifices, water cut only for tube ICDs, and does not exhibit correlation to the water or gas cut multi-phase loss coefficient values for helix designs, especially at higher choke settings.

A lean approach for qualification of inflow control is presented, involving full-scale experimental tests. The experimental data are converted into optimized well design by a simple and robust workflow, incorporating internally developed software tools for pressure-drop modelling and for well modelling with inflow control. Production data from several Equinor operated fields are analyzed, and the increased oil recovery, as well as the impact on CO2 intensity, is discussed. Results from a full-scale qualification test campaign including five different autonomous inflow control devices (AICD) are presented. The intended application is a special case with high expected production and high pressure, in nearly vertical wells, which is unlike any of the more than 175 wells with AICDs in Equinor. The ability to choke gas and allow high oil production, as well as other selected qualification criteria, were examined for the five, already commercially available, technologies in a benchmarking study.