Multi-phase coriolis flowmeter

Abstract

A Coriolis flowmeter is configured to determine a first property of a multi-phase fluid. A flow model is configured to determine a second property of the multi-phase fluid. A determination system is configured to determine a third property of the multi-phase fluid based, at least in part, on the first property and the second property.

1 . A system comprising:
 a Coriolis flowmeter configured to determine a first property of a multi-phase fluid;   a flow model configured to determine a second property of the multi-phase fluid; and   a determination system configured to determine a third property of the multi-phase fluid based, at least in part, on the first property and the second property.   
     
     
         2 . The system of  claim 1  further comprising a sensor configured to sense a fourth property associated with the multi-phase fluid, wherein the flow model is configured to determine the second property based on the fourth property. 
     
     
         3 . The system of  claim 2  wherein the fourth property is a pressure associated with the multi-phase fluid. 
     
     
         4 . The system of  claim 2  wherein the fourth property is a temperature associated with the multi-phase fluid. 
     
     
         5 . The system of  claim 1  wherein:
 the Coriolis flowmeter is configured to determine a fourth property of the multi-phase fluid; and   the determination system is configured to determine the third property of the multi-phase fluid based, at least in part, on the first property, the second property, and the fourth property.   
     
     
         6 . The system of  claim 1  wherein the first property is a bulk density of the multi-phase fluid, the second property is a water-cut or gas void fraction of the multi-phase fluid, and the fourth property is a bulk mass flow rate of the multi-phase fluid. 
     
     
         7 . The system of  claim 1  wherein the third property is a mass flow rate or a volumetric flow rate of a component of the multi-phase fluid. 
     
     
         8 . A system comprising:
 a bulk density determination system to determine a bulk density of a multi-phase fluid;   a mass flow rate determination system to determine a bulk mass flow rate of the multi-phase fluid;   a pressure sensor configured to determine a pressure associated with the multi-phase fluid;   a flow model configured to determine water-cut or gas void fraction of the multi-phase fluid based, at least in part, on the sensed pressure;   a flow rate determination system to determine a flow rate of at least one component of the multi-phase fluid based on the bulk density, the bulk mass flow rate, and the water-cut or gas void fraction.   
     
     
         9 . A method comprising:
 determining a first property of a multi-phase fluid using a Coriolis flowmeter;   determining a second property of the multi-phase fluid using a mathematical model of a flow of the multi-phase fluid through a conduit; and   determining a third property of the multi-phase fluid based, at least in part, on the first property and the second property.   
     
     
         10 . The method of  claim 9  further comprising determining a fourth property associated with the multi-phase fluid, wherein determining the second property comprises inputting the fourth property into the mathematical model. 
     
     
         11 . The method of  claim 10  wherein the fourth property is a pressure associated with the multi-phase fluid. 
     
     
         12 . The method of  claim 10  wherein the fourth property is a temperature associated with the multi-phase fluid. 
     
     
         13 . The method of  claim 9  further comprising determining a fourth property of the multi-phase fluid, wherein determining the third property of the multi-phase fluid comprises determining the third property based, at least in part, on the first property, the second property, and the fourth property. 
     
     
         14 . The method of  claim 9  wherein the first property is a bulk density of the multi-phase fluid, the second property is a water-cut or gas void fraction of the multi-phase fluid, and the fourth property is a bulk mass flow rate of the multi-phase fluid. 
     
     
         15 . The method of  claim 9  wherein the third property is a mass flow rate or a volumetric flow rate of a component of the multi-phase fluid. 
     
     
         16 . A method comprising:
 determining a bulk density of a multi-phase fluid;   determining a bulk mass flow rate of the multi-phase fluid;   determining a pressure associated with the multi-phase fluid; and   determining a flow rate of at least one component of the multi-phase fluid based on the bulk density, the bulk mass flow rate, and the pressure.   
     
     
         17 . The method of  claim 16  wherein determining a flow rate of at least one component of the multi-phase fluid based on the bulk density, the bulk mass flow rate, and the pressure comprises:
 determining a water-cut or gas void fraction of the multi-phase fluid based, at least in part, on the pressure; and   determining a flow rate of at least one component of the multi-phase fluid based on the bulk density, the bulk mass flow rate, and the water-cut or gas void fraction.   
     
     
         18 . The method of  claim 17  wherein determining the water-cut or gas void fraction of the multi-phase fluid based, at least in part, on the pressure comprises using a flow model to determine the water-cut or gas void fraction based on the pressure. 
     
     
         19 . A method comprising:
 determining a bulk density of a multi-phase fluid using a Coriolis flowmeter, the Coriolis flowmeter including a flowtube;   determining a bulk mass flow rate of the multi-phase fluid using a Coriolis flowmeter;   determining an inlet pressure of the multi-phase fluid at an inlet of the flowtube;   determining an outlet pressure of the multi-phase fluid at an outlet of the flowtube;   determining an inlet temperature of the multi-phase fluid at the inlet of the flowtube;   determining a water-cut or gas void fraction of the multi-phase fluid based on the bulk density, the bulk mass flow rate, the inlet pressure, the outlet pressure, and the inlet temperature; and   determining a flow rate of at least one component of the multi-phase fluid based on the bulk density, the bulk mass flow rate, and the water-cut or gas void fraction.   
     
     
         20 . The method of  claim 19  wherein determining the water-cut or gas void fraction of the multi-phase fluid comprises using a mathematical model of a flow of the multi-phase fluid through the flowtube to determine the water-cut or gas void fraction of the multi-phase fluid based on the bulk density, the bulk mass flow rate, the inlet pressure, the outlet pressure, and the inlet temperature.