Method of evaluating the effluent of a hydrocarbon well by means of a multiphase flowmeter, and installation implementing the same

摘要

A multiphase flowmeter (30) is mounted on the piping via which a multiphase fluid flows out from a hydrocarbon well, so as to measure the flow rates of the various phases of the fluid. A back-pressure valve (34) is placed in the piping downstream from the flowmeter (30) so as to enable the pressure in the flowmeter to be adjusted, whereby the flow conditions of the fluid in the flowmeter (30) can be made compatible with the measurement domain of the flowmeter.