초록

A three phase meter to measure the oil/water/gas fractions of a multi-phase fluid flow uses a fraction meter and a flow meter to calibrate flow with the fraction meter sending mixture density information to the flow meter to make the calculation.

대표청구항 ▼

A system for determining the volumetric flow rates of the oil/water/gas fractions of three phase fluid flow in a fluid flow line corrected for density variations, comprising: a continuous flow water cut monitor placed in a three phase fluid flow line and capable of continuously measuring on a statis

A system for determining the volumetric flow rates of the oil/water/gas fractions of three phase fluid flow in a fluid flow line corrected for density variations, comprising: a continuous flow water cut monitor placed in a three phase fluid flow line and capable of continuously measuring on a statistical basis and providing three separate continuous outputs representative of the oil fraction, the water fraction and the gas fraction of fluid flow in said flow line; a total volume fluid flow meter placed in series in said fluid flow line with said water cut monitor and capable of measuring and producing a continuous output signal representative of the total volumetric flow rate of fluid in said flow line passing therethrough; and means responsive to said three separate continuous outputs of said water cut monitor and said output signal representative of the total volumetric flow rate from said flow meter for continuously determining the total density of fluid entering said flow meter and for correcting said total volumetric flow rate representative signal from said flow meter for density changes whereby the oil fraction, gas fraction and water fraction volumetric flow rates in said fluid flow line are determined.