Multi-phase coriolis flowmeter
First Claim
Patent Images
1. A system comprising:
- a controller that is operable to receive a sensor signal from a first sensor connected to a vibratable flowtube containing a three-phase fluid flow that includes a first liquid, a second liquid, and a gas, the controller being further operable to analyze the sensor signal to determine an apparent flow parameter of the fluid flow;
a second sensor that is operable to determine an apparent flow condition of the fluid flow; and
a corrections module that is operable to input the apparent flow parameter and the apparent flow condition and determine a corrected flow parameter therefrom.
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Abstract
A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to determine an individual flow rate of each phase within a multi-phase flow through the flowtube.
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Citations
43 Claims
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1. A system comprising:
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a controller that is operable to receive a sensor signal from a first sensor connected to a vibratable flowtube containing a three-phase fluid flow that includes a first liquid, a second liquid, and a gas, the controller being further operable to analyze the sensor signal to determine an apparent flow parameter of the fluid flow; a second sensor that is operable to determine an apparent flow condition of the fluid flow; and a corrections module that is operable to input the apparent flow parameter and the apparent flow condition and determine a corrected flow parameter therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method comprising:
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determining an apparent bulk density of a multi-phase flow through a flowtube, the multi-phase flow including a first liquid, a second liquid, and a gas; determining an apparent bulk mass flow rate of the multi-phase flow; and determining a first mass flow rate of the first liquid, based on the apparent bulk density and the apparent bulk mass flow rate. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A flowmeter comprising:
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a vibratable flowtube containing a three-phase flow including a first liquid, a second liquid, and a gas; a driver connected to the flowtube and operable to impart motion to the flowtube; a sensor connected to the flowtube and operable to sense the motion of the flowtube and generate a sensor signal; and a controller connected to receive the sensor signal and determine a first flow rate of a first phase within the three-phase flow through the flowtube, based on the sensor signal.
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29. A method of improving an output of a flowmeter, comprising:
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determining an apparent bulk density of a multi-phase flow through a flowtube, the multi-phase flow including a first liquid, a second liquid, and a gas; determining an apparent bulk mass flow rate of the multi-phase flow; determining an apparent flow condition of the multi-phase flow; and correcting the apparent bulk density or the apparent mass flow rate, based on the apparent bulk density, the apparent mass flow rate, and the apparent flow condition.
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30. A method of improving an output of a liquid fraction probe, comprising:
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determining an apparent bulk density of a multi-phase flow through a flowtube, the multi-phase flow including a first liquid, a second liquid, and a gas; determining an apparent bulk mass flow rate of the multi-phase flow; determining an apparent liquid fraction of the first liquid within the multi-phase flow; and correcting the apparent liquid fraction to obtain a corrected liquid fraction, based on the apparent bulk density, the apparent mass flow rate, and the apparent liquid fraction. - View Dependent Claims (31)
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32. A method of obtaining a gas void fraction measurement, comprising:
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determining an apparent bulk density of a multi-phase flow through a flowtube, the multi-phase flow including a first liquid, a second liquid, and a gas; determining an apparent bulk mass flow rate of the multi-phase flow; determining an apparent gas void fraction of the gas within the multi-phase flow; and correcting the apparent gas void fraction to obtain a corrected gas void fraction, based on the apparent bulk density, the apparent mass flow rate, and the apparent gas void fraction. - View Dependent Claims (33)
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34. A system comprising:
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a conduit having a fluid flow therethrough, the fluid flow including at least a first liquid component, a second liquid component, and a gas component; a vibratable flowtube in series with the conduit and having the fluid flow therethrough; a first sensor operable to determine a first apparent property of the fluid flow through the conduit; a second sensor connected to the flowtube and operable to sense information about a motion of the flowtube; a driver connected to the flowtube and operable to impart energy to the flowtube; a control and measurement system operable to measure a second apparent property and a third apparent property of the fluid flow; and a corrections system operable to determine a corrected first property, a corrected second property, and a corrected third property, based on the first apparent property, the second apparent property, and the third apparent property.
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35. A system comprising:
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a controller that is operable to determine a first apparent property of a fluid flow in which a first liquid, a second liquid, and a gas are co-mingled; a meter that is operable to measure a second apparent property of the fluid flow; and a corrections module that is operable to input the first apparent property and output a first corrected property, wherein the meter is operable to input the first corrected property and the second apparent property and output a second corrected property.
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36. A method comprising:
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passing a three-phase fluid flow through a vibratable flowtube, the three-phase fluid flow including first liquid, a second liquid, and a gas; determining an apparent flow parameter of the fluid flow; determining an apparent flow condition of the fluid flow; and determining a correccted flow parameter based on the apparent flow parameter and the apparent flow condition.
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37. A system comprising:
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a vibratabfe flowtube eomaining a mult-phase flow, the multi-phase flow including a first liquid, a second liquid, and a gas; a driver connected to the flowtube and operable to impart motion to the flowtube; a sensor connected to the flowtube and operable to sense the motion of the flowtube and generate a sensor signal; and a controller connected to receive the sensor signal, determine an apparent bulk mass flow rate of the multi-phase flow, and determine a first mass flow rate of the first liquid, based on the apparent bulk density and the apparent bulk mass flow rate.
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38. A method comprising:
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passing a three phase fluid through a vibratable flowtube, the three-phase flow including first liquid, a second liquid, and a gas; imparting motion to the flowtube using a driver; sensing the motion of the flowtube using a sensor; and determining a first flow rate of a first phase within the three-phase fluid through the flowtube, based on the sensed motion.
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39. A system comprising:
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a controller configured to; determine an apparent bulk density of a multi-phase flow through a flowtube, the multi-phase flow including a first liquid, a second liquid, and a gas; determine an apparent bulk mass flow rate of the multi-phase flow; determine an apparent flow condition of the multi-phase flow; and a corrections module configured to correct the apparent bulk density or the apparent mass flow rate, based on the apparent bulk density, the apparent mass flow rate, and the apparent flow condition.
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40. A system comprising:
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a controller configured to; determine an apparent bulk density of a multi-phase flow through a flowtube, the multi-phase flow including a first liquid, a second liquid, and a gas; determine an apparent bulk mass flow rate of the multi-phase flow; a sensor configured to determine an apparent liquid fraction of the first liquid within the multi-phase flow; and a corrections module configured to correct the apparent liquid fraction to obtain a corrected liquid fraction, based on the apparent bulk density, the apparent mass flow rate, and the apparent liquid fraction.
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41. A system comprising:
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a controller configured to; deterimine an apparent bulk density of a multi-phase flow through a flowtube, the multi-phase flow including a first liquid, a second liquid, and a gas; determine an apparent bulk mass flow rate of the multi-phase flow; a sensor configured to determine an apparent gas void fraction of the gas within the multi-phase flow; and a corrections module configured to correct the apparent gas void fraction to obtain a corrected gas void fraction, based on the apparent bulk density, the apparent mass flow gate, and the apparent gas void fraction.
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42. A method comprising:
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passing a fluid flow through a conduit and a vibratable flowtube in series with the conduit, the fluid flow including at least a first liquid component, a second liquid component, and a gas component; determining a first apparent property of the fluid flow through the conduit using a first sensor; imparting motion to the flowtube using a diver; sensing information about the motion of the flowtube using a second sensor; measuring second apparent property and a third apparent property of the fluid flow; and determining a corrected first property, a corrected second property, and a corrected third property, based on the first apparent property, the second apparent property, and the third apparent property.
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43. A method comprising:
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using a controller to determine a first apparent property of a fluid flow in which a first liquid, a second liquid, and a gas are co-mingled; using a meter to measure a second apparent property of the fluid flow; using a corrections module to input the first apparent property and output a first corrected property; and using the meter to input the first corrected property and the second apparent property and output a second corrected property.
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Specification