andrew hunt - flow measurement institute€¦ · professor andrew hunt dr erdal turkbeyler dr james...
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Andrew Hunt Executive Director, Flow Measurement and Fluid Mechanics Research Centre
flowmeasure.com
h.p://www.flowmeasure.com/wp-content/uploads/2016/06/Research-and-Infrastructure-Priori@es.pdf
Flow Measurement and Fluid Mechanics ProcessNowcas+ngandSmartPipeProfessorAndrewHuntDrErdalTurkbeylerDrJamesJewkesDrJonathanNixonDrRezaAliDrEssamAbdelfatahDrAlexPedchenkoDrMichaelDallastonPDRA
FluidMechanicsofComplexFlowsProfessorAlbanPothératDrJanisPriedeDrChrisPringleDrBogdanTeacaDrS@jnVan@eghemDrBrahimMoudjedMar@nHoldsworthPDRA
AdvancedCompu+ngDrJamesBruseyProfessorElenaGauraDrRossWilkinsDrAnhTranPDRA
Reservoir,EnergyandEnvironmentDrSeyedSharia;pourDrSoroushAbolfathiDrEbrahimAbtahizadeh
CentreOpera+onsDrLornaEverall(opsmgr)
DrPhilCosten(RDE)LeonoreRodriguez-Esteves(RD)
BallySiddhu(RD)IanBates
Mathema+calPhysicsProfessorRalphKennaDrMar@nWeigelDrChris@anvonFerberDrMa.hewEnglandProfessorDamienFosterDrNikolaosFytasDrThierryPla@niDrTarasYavorskyiDrRobLow
Theore@cal/numerical/physicalmodelling
Advancedmeasurement
Excelling in Measurement and Modelling
Bayesiansta@s@cs,Par@clefiltering,Machinelearning,
Decision-supporttools.
Measurementasreal-@meboundarycondi@onfor
model
Pervasivesensingandsensorintegra@on–smartpipes
Fully-calibratedinstantaneousflowcondi@onsateverypointin
spaceand@me
Processes..
Current flow facilites
! 3-phase, oil-air-water, oil well flow simulator
! Multiphase flow loop, UK national standard (NEL)
! Single-phase flow calibration facilities in oil and water (NEL)
! Wet gas flow loop, UK national standard (NEL)
! 10T large-bore magnet (LNCMI-CNRS Grenoble)
! Bench top unsteady state relative permeameter Vinci BRP350
! Advanced computing including dedicated HPC cluster
A perspective on Flow Measurement Andrew Hunt
Coventry University
Calculation of flowrate
!! = !! !!,! ! .!!,! ! .!! .!"!!!,!!
Mj = phase j mass flowrate (j = oil, gas, water etc.) Dj = phase j density (assumed invariant within meter)
Vi,j = instantaneous velocity of phase j in zone i αi,j = instantaneous concentra>on of phase j in zone i (Σj αi,j =1) Ai = area of zone i (invariant)
The correct calcula>on of mass flowrate involves integra>on a1er mul>plica>on of
velocity and concentra>on:
But many current MPFMs use technologies that average across the pipe first including: venturi, coriolis,
gamma-density, microwave, capacitance correla>on etc.
In this case the integrals are effec>vely done before the
mul>plica>on of velocity and concentra>on:
!′! = !! !!,! ! .!! .!"!!!,!!
!!,! ! .!"!!!,!!
But: product of the integrals ≠ integral of the product
Taking a simple example of liquid flowrate in gas-liquid
with 50% in-situ volume frac>on and Vg=2*Vl:
integral of the product (true answer) => 0.5*A*Vl
product of the integral => 0.5*A*(Vg+Vl)/2 =>0.5*A*(2*Vl+Vl)/2 =>0.75*A*Vl
=> 50% error even if the measurement is exact!
Vg
Vl
Build up from images for correct integration
11-Jul-17 14
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voltage26phaseangle36voltage46.permifvityconduc@vityvelocity.velocity26velocity36concentra@on26concentra@on36.
mightrepresent…
Electrical Capacitance Tomography
! A ‘body scanner’ for pipes
! up to 5000 images per second
! 10,000 x faster than a medical body scanner
! 20 to 100 times cheaper than a medical body scanner
.
DrySolids
Oilandgas
Wetsteam
Electrical Capacitance Tomography
Commercial ECT Systems
! Measure capacitances on two-planes of electrodes
! Produce images of concentration and velocity
! Integrate to give flowrate in two-phase flows
Solids flow in milling
Hunt(2014).WeighingwithoutTouching,MeasurementandControl47/1,19-25.
!
Dust flows: 10 kg/hr at 12m/s
Liquid Flight Propellant Tank
Propellant Tank
Thin Film Electrode Array
Typical image frames during roll movement from each plane representing two ends of the tank
Gauge propellant - any orientation, any gravity, any vessel
Sloshforce
3DPropellant
CentreofgravityTankcam
Propellant%full
27
Clamp-on ECT at Field Conditions
• ECTsensorshownclamped-ontoaramidfibrereinforcedHDPEpipe,withapressurera@ngof90Bar@65ºC
Developing an image-based multiphase flowmeter
! Need fast imaging of velocity and concentration in: ! oil-continuous flows (ECT, MIT, …) ! gas-continuous flows (ECT, MIT, …) ! water-continuous flows (MIT, ERT, EVT…)
! Develop a real-time pixel-based property vector
! Integrate to get the phase flowrates for multiphase and dry solids conveying
! Underwater, clamp-on system feasible
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