Device for characterizing the flow of a multiphase fluid in a tubing

摘要

The invention relates to a device for integrating electrodes ( 12 ) characterizing the flow of a multiphase fluid in a tubing ( 10 ). The device includes a tube section ( 14 ) made out of an electrically insulating material and bearing the electrodes on its external surface. A metal compensation sheath ( 16 ) encircles the section ( 14 ), being separated from the latter by an insulating and incompressible fluid. An annular chamber ( 18 ) outside the sheath communicates with the inside of the tubing ( 10 ). The sheath ( 16 ) is fixed on seal rings ( 29 ) inserted at the ends of the section ( 14 ), by reinforcement for example.