NO971791L - Multiphase flow meter - Google Patents

Multiphase flow meter

Info

Publication number
NO971791L
NO971791L NO971791A NO971791A NO971791L NO 971791 L NO971791 L NO 971791L NO 971791 A NO971791 A NO 971791A NO 971791 A NO971791 A NO 971791A NO 971791 L NO971791 L NO 971791L
Authority
NO
Norway
Prior art keywords
multiphase
calculation circuit
multiphase fluid
sets
cross
Prior art date
Application number
NO971791A
Other languages
Norwegian (no)
Other versions
NO971791D0 (en
Inventor
Kenta Mikuriya
Daisuke Yamazaki
Shuichi Haruyama
Yoshiaki Tanaka
Manabu Fueki
Original Assignee
Japan National Oil
Yokogawa Electric Corp
Nippon Kokan Kk
Japan Petroleum Exploration Co
Teikoku Oil
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 Japan National Oil, Yokogawa Electric Corp, Nippon Kokan Kk, Japan Petroleum Exploration Co, Teikoku Oil filed Critical Japan National Oil
Publication of NO971791D0 publication Critical patent/NO971791D0/en
Publication of NO971791L publication Critical patent/NO971791L/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
    • G01F1/704—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
    • G01F1/05—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
    • G01F1/36—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 the pressure or differential pressure being created by the use of flow constriction
    • G01F1/363—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 the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
    • 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
    • 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
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
    • G01F1/88—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure with differential-pressure measurement to determine the volume flow

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Multifase-strømningsmåler innbefattende to sett med multifase-densitetsmålere 20, 30, som hver innbefatter en impedansmålekrets 22, 32 for å tilføre en spenning, som er variabel i frekvens, mellom dobbeltsylinder-elektroder 21a, 21b; 31a, 31b festet til utsiden og innsiden av en rørledning 10 gjennom hvilke et multifasefluid som skal måles strømmer. Variasjoner av en kapitans mellom elektrodene 21 a, 21 b; 31 a, 31 b, J[!ni idet endringene er i samsvar med den relative dielektrisk konstante til multifasefluidet. Det er videre anordnet en faseforholds-beregningskrets 23, 33 for å motta en utgang fra impedansmålekretsen 22, 32 for å beregne faseforholdet til de respektive fluider blandet i multifasefluidet. Det er også anordnet en korrelasjons-beregningskrets40for å motta utgangssignalene til faseforholdene, som hver har en fluktuasjon på grunn av en strømning av multifasefluidumet fra de to settene med multifasedensitetsmålere 20, 30. Det tilveiebringes en forsinkelsestid korresponderende til maksimalverdien til kryss-korrelasjonsfunksjonen mellom de respektive utgangssignaler for de to settene med multifasedensitetsmålere 20, 30 for derved å tilveiebringe strømningshastighetene til de respektive fluider blandet i multifasefluidet. En strømningsmengde-beregningskrets 50 er anordnet for å tilveiebringe strømningsmengdene til de respektive fluider basert på strømningshastigheten tilveiebragt ved kryss-korrelasjonsberegningskretsen 40.Multiphase flowmeter including two sets of multiphase density meters 20, 30, each of which includes an impedance measuring circuit 22, 32 for applying a voltage, which is variable in frequency, between dual cylinder electrodes 21a, 21b; 31a, 31b attached to the outside and inside of a pipeline 10 through which a multiphase fluid to be measured flows. Variations of a capacitance between the electrodes 21 a, 21 b; 31 a, 31 b, J [! Ni as the changes are in accordance with the relative dielectric constant of the multiphase fluid. A phase ratio calculation circuit 23, 33 is further provided for receiving an output from the impedance measuring circuit 22, 32 for calculating the phase ratio of the respective fluids mixed in the multiphase fluid. A correlation calculation circuit 40 is also provided for receiving the output signals of the phase conditions, each of which has a fluctuation due to a flow of the multiphase fluid from the two sets of multiphase density meters 20, 30. A delay time corresponding to the maximum value of the cross-function of the cross-function is provided. output signals for the two sets of multiphase density meters 20, 30 to thereby provide the flow rates of the respective fluids mixed in the multiphase fluid. A flow rate calculation circuit 50 is provided to provide the flow rates of the respective fluids based on the flow rate provided by the cross-correlation calculation circuit 40.

NO971791A 1996-05-23 1997-04-18 Multiphase flow meter NO971791L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12838996A JPH09311061A (en) 1996-05-23 1996-05-23 Multiphase-flow flowmeter

Publications (2)

Publication Number Publication Date
NO971791D0 NO971791D0 (en) 1997-04-18
NO971791L true NO971791L (en) 1997-11-24

Family

ID=14983610

Family Applications (1)

Application Number Title Priority Date Filing Date
NO971791A NO971791L (en) 1996-05-23 1997-04-18 Multiphase flow meter

Country Status (4)

Country Link
JP (1) JPH09311061A (en)
AU (1) AU2004297A (en)
GB (1) GB2313445A (en)
NO (1) NO971791L (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO310322B1 (en) 1999-01-11 2001-06-18 Flowsys As Painting of multiphase flow in rudder
GB9914500D0 (en) * 1999-06-22 1999-08-25 Axon Instr Limited Flow meter
GB2386691B (en) * 1999-06-22 2003-12-24 Axon Instr Ltd Ratio tool
NO323247B1 (en) 2003-12-09 2007-02-12 Multi Phase Meters As Method and flow meter for determining the flow rates of a multiphase mixture
NO321930B1 (en) 2005-02-03 2006-07-24 Roxar As Flow Paint Apparatus
NO323451B1 (en) 2005-08-11 2007-05-14 Multi Phase Meters As Method and apparatus for determining conductivity and volume traction of water in a multicomponent mixture
WO2009030870A1 (en) * 2007-09-05 2009-03-12 University Of Leeds Multi phase flow measurement system
CN103175580B (en) * 2013-03-06 2014-12-24 中国计量学院 Measuring method and measuring device for capacitance type pore plate flow quantity of conducting liquid
CN104949720B (en) * 2014-12-03 2019-02-22 佛山市云米电器科技有限公司 Flow rate testing methods and device, purifier
CN105841764B (en) * 2016-03-24 2019-04-19 高金余 A kind of system for measuring heterogeneous fluid ratio in multi-phase flowmeter
US11644351B2 (en) 2021-03-19 2023-05-09 Saudi Arabian Oil Company Multiphase flow and salinity meter with dual opposite handed helical resonators
US11913464B2 (en) 2021-04-15 2024-02-27 Saudi Arabian Oil Company Lubricating an electric submersible pump
CN113405616B (en) * 2021-06-16 2022-05-27 深圳市联恒星科技有限公司 Multiphase flow fluid measurement system based on riser differential pressure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899101A (en) * 1988-01-21 1990-02-06 The United States Of America As Represented By The United States Department Of Energy Online capacitive densitometer
GB9109074D0 (en) * 1991-04-26 1991-06-12 Shell Int Research A method and apparatus for measuring the gas and the liquid flowrate and the watercut of multiphase mixtures of oil,water and gas flowing through a pipeline
US5396806A (en) * 1993-11-12 1995-03-14 Auburn International, Inc. On-line mass flow measurement in flowing two component systems

Also Published As

Publication number Publication date
AU2004297A (en) 1997-11-27
JPH09311061A (en) 1997-12-02
NO971791D0 (en) 1997-04-18
GB2313445A (en) 1997-11-26
GB9710793D0 (en) 1997-07-23

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