WET GAS MEASUREMENT

• US 20100211346A1
• Filed: 11/06/2009
• Published: 08/19/2010
• Est. Priority Date: 08/28/2006
• Status: Active Grant

• Current Assignee: Schneider Electric Systems USA, Inc. (Schneider Electric SE)
• Original Assignee: Invensys Systems Incorporated (Invensys PLC)
• Inventors: Henry, Manus P., Tombs, Michael S.
• Granted Patent: US 8,126,661 B2
• Time in Patent Office: Days
• US Class Current: 702/100
• CPC Class Codes: G01F 1/74 Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
• CPC Class Codes: G01F 1/8409 constructional details
• CPC Class Codes: G01F 1/8431 electronic circuits
• CPC Class Codes: G01F 1/8436 signal processing
• CPC Class Codes: G01F 1/8481 having loop-shaped measuring conduits, e.g. the measuring conduits form a loop with a crossing point
• CPC Class Codes: G01F 1/8486 with multiple measuring conduits
• CPC Class Codes: G01F 15/024 involving digital counting
• CPC Class Codes: G01F 25/10 of flowmeters
• CPC Class Codes: G01N 9/002 using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis G01N9/34 takes precedence

Abstract

A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. A first apparent property of the multi-phase process fluid based on the motion of the vibratable flowtube is determined, and an apparent intermediate value associated with the multi-phase process fluid based on the first apparent property is determined. A corrected intermediate value is determined based on a mapping between the intermediate value and the corrected intermediate value. A phase-specific property of a phase of the multi-phase process fluid is determined based on the corrected intermediate value.

Claims

1. A method comprising:

passing a multi-phase process fluid through a vibratable flowtube;

inducing motion in the vibratable flowtube;

accessing a first property of the multi-phase process fluid, the first property being based on the motion of the vibratable flowtube;

determining an apparent intermediate value associated with the multi-phase process fluid based on the first property;

applying a mapping to the apparent intermediate value;

determining a corrected intermediate value based on the mapping; and

determining a phase-specific property of a phase of the multi-phase process fluid based on the corrected intermediate value.