Well production rates are normally (continuously) monitored using test separator facilities. These units are often costly and large packages, including for various measurement devices. The size of the separator is based on sufficiently efficient separation in order to facilitate measurement of the different streams, gas, oil & produced water.

Yet another method of operation can be found. This new way of measurement does not require separation of the two liquid phases, moreover, only a rough (coarse) separation of gas and liquid is required.

The measurement devices selected are based on a gamma ray emitter / detector unit for the liquid phase and an ultrasonic (or equal) device for the gas stream.

Subject measurement technology has been developed in close co-operation with Shell.

A very compact package is thus possible, allowing for limited foot print suitable for limited off-shore deck space availability.