WO2005088262A3 - Method and apparatus for measuring parameters of a stratified flow - Google Patents

Method and apparatus for measuring parameters of a stratified flow Download PDF

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Publication number
WO2005088262A3
WO2005088262A3 PCT/US2005/008192 US2005008192W WO2005088262A3 WO 2005088262 A3 WO2005088262 A3 WO 2005088262A3 US 2005008192 W US2005008192 W US 2005008192W WO 2005088262 A3 WO2005088262 A3 WO 2005088262A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow
pipe
stratification
level
velocities
Prior art date
Application number
PCT/US2005/008192
Other languages
French (fr)
Other versions
WO2005088262A2 (en
Inventor
Daniel L Gysling
Mark R Fernald
Timothy J Bailey
John Viega
Original Assignee
Cidra Corp
Daniel L Gysling
Mark R Fernald
Timothy J Bailey
John Viega
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cidra Corp, Daniel L Gysling, Mark R Fernald, Timothy J Bailey, John Viega filed Critical Cidra Corp
Priority to AT05725389T priority Critical patent/ATE484734T1/en
Priority to EP05725389A priority patent/EP1735597B1/en
Priority to DE602005024121T priority patent/DE602005024121D1/en
Priority to BRPI0508637-0A priority patent/BRPI0508637B1/en
Priority to CA2559190A priority patent/CA2559190C/en
Priority to AU2005220972A priority patent/AU2005220972B2/en
Publication of WO2005088262A2 publication Critical patent/WO2005088262A2/en
Publication of WO2005088262A3 publication Critical patent/WO2005088262A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/666—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters by detecting noise and sounds generated by the flowing fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7082—Measuring the time taken to traverse a fixed distance using acoustic detecting arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/712—Measuring the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid

Abstract

Various methods are described for measuring parameters of a stratified flow using at least one spatial array of sensors disposed at different axial locations along the pipe. Each of the sensors provides a signal indicative of unsteady pressure created by coherent structures convecting with the flow. In one aspect, a signal processor determines, from the signals, convection velocities of coherent structures having different length scales. The signal processor then compares the convection velocities to determine a level of stratification of the flow. The level of stratification may be used as part of a calibration procedure to determine the volumetric flow rate of the flow. In another aspect, the level of stratification of the flow is determined by comparing locally measured velocities at the top and bottom of the pipe. The ratio of the velocities near the top and bottom of the pipe correlates to the level of stratification of the flow. Additional sensor arrays may provide a velocity profile for the flow. In another aspect, each of the sensors in the array includes a pair of sensor half-portions disposed on opposing lateral surfaces of the pipe, and the signal processor determines a nominal velocity of the flow within the pipe using the signals.
PCT/US2005/008192 2004-03-10 2005-03-10 Method and apparatus for measuring parameters of a stratified flow WO2005088262A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT05725389T ATE484734T1 (en) 2004-03-10 2005-03-10 METHOD AND DEVICE FOR MEASURING PARAMETERS OF A COATED FLOW
EP05725389A EP1735597B1 (en) 2004-03-10 2005-03-10 Method and apparatus for measuring parameters of a stratified flow
DE602005024121T DE602005024121D1 (en) 2004-03-10 2005-03-10 METHOD AND DEVICE FOR MEASURING PARAMETERS OF A COATED RIVER
BRPI0508637-0A BRPI0508637B1 (en) 2004-03-10 2005-03-10 METHOD AND APPARATUS FOR MEASURING PARAMETERS OF A STRATIFIED FLOW
CA2559190A CA2559190C (en) 2004-03-10 2005-03-10 Method and apparatus for measuring parameters of a stratified flow
AU2005220972A AU2005220972B2 (en) 2004-03-10 2005-03-10 Method and apparatus for measuring parameters of a stratified flow

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55216404P 2004-03-10 2004-03-10
US60/552,164 2004-03-10

Publications (2)

Publication Number Publication Date
WO2005088262A2 WO2005088262A2 (en) 2005-09-22
WO2005088262A3 true WO2005088262A3 (en) 2006-05-04

Family

ID=34976304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/008192 WO2005088262A2 (en) 2004-03-10 2005-03-10 Method and apparatus for measuring parameters of a stratified flow

Country Status (9)

Country Link
US (2) US20050246111A1 (en)
EP (1) EP1735597B1 (en)
CN (1) CN100478651C (en)
AT (1) ATE484734T1 (en)
AU (1) AU2005220972B2 (en)
BR (1) BRPI0508637B1 (en)
CA (1) CA2559190C (en)
DE (1) DE602005024121D1 (en)
WO (1) WO2005088262A2 (en)

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Also Published As

Publication number Publication date
AU2005220972B2 (en) 2010-12-23
EP1735597B1 (en) 2010-10-13
US7516024B2 (en) 2009-04-07
CN1950679A (en) 2007-04-18
EP1735597A2 (en) 2006-12-27
BRPI0508637B1 (en) 2017-10-10
AU2005220972A1 (en) 2005-09-22
US20050246111A1 (en) 2005-11-03
ATE484734T1 (en) 2010-10-15
CA2559190A1 (en) 2005-09-22
CN100478651C (en) 2009-04-15
US20080133182A1 (en) 2008-06-05
WO2005088262A2 (en) 2005-09-22
BRPI0508637A (en) 2007-08-14
CA2559190C (en) 2013-07-23
DE602005024121D1 (en) 2010-11-25

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