Flow Measurment O&G Sept08

7/28/2019 Flow Measurment O&G Sept08

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04/09/2008

Steve Milford

Slide 1

Flow Measurement for Oil & Gas

Steve Milford

Business Driver Ultrasonic



04/09/2008


Steve Milford

Slide 2

So much choice! An overview of the available flow measurement technologies - selection &

application guidance

Steve Milford

04/09/2008

Slide 2



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Steve Milford

Slide 3

DP Orifice-plate Flowmeter

Measuring Principle



04/09/2008


Steve Milford

Slide 4

Differential Pressure ” oldest meter since early 1900s

Daniel Bernouli

University of Basel 1738

‚Hydrodyamica‛ The Bernouli Equation

“ The technology is simple, and the hardware relatively low cost

“ ≈20% of the Industrial Flow meter market

today is Differential Pressure, and majority is Orifice Plate

“ Also Pitot Tube and Venturi



04/09/2008


Steve Milford

Slide 5

How does it work? DP Orifice Plate

Q 2 ~ dP

Flow is measured

v1 v1 reduced diameter

1 1

higher velocity

(speed v 2)

v2 2

2

dP = Pstat1- Pstat

2

is measured

dp pressure4

dw

Pstat2

Pstat1

dP

Pdyn1

P

4

Pdyn2

Note: dP is partly re-transformed

to static pressure.

Rest: pressure loss dw

Pstat transformedinto Pdyn

Ptotal2= Pstat2

+Pdyn2+dw Ptotal

1= Pstat

1+Pdyn

1 3

3



04/09/2008


Steve Milford

Slide 6

Differential Pressure - Orifice Plate

Q~ dP

Result:

Q² ~ dP

Square root function

Flow



04/09/2008

Steve Milford

Slide 7

Turbine Flowmeter

Measuring Principle

Photograph courtesy Emerson Daniel



04/09/2008


Steve Milford

Slide 8

Turbine flowmeter ” used since 1940s

“ As fluid flows through the pipe, rotor is caused to spin on its axis at a speed which

is proportional to the velocity of the fluid

“ Passage of each rotor is sensed by the turbine meter using gears, photoelectric cell

or magnetic pickup installed on the outside of meter body

“ Turbine meters most effective in steady, high-speed flows of clean, low viscosity

fluids

“ ‚Sister‛ mechanical technology Positive Displacement meters effective for low flow,

high viscosity

Reinhard Woltman

Germany 1757-1837Invented Turbine Meter 1791



04/09/2008

Steve Milford

Slide 9

Electro Magnetic Flowmeter

Measuring Principle



04/09/2008


Steve Milford

Slide 10

Physical Basics of EMF

A voltage is induced in an electric conductor

when it is moved through a magnetic field.

Faraday‘s Law

v L BU e

B = Strength of Magnetic Field

L = Length of Conductor

v = Velocity of Conductor

Sir Michael Farady

1791-1867 England

Defined Law of Induction

OHNE DETAILS



04/09/2008


Steve Milford

Slide 11

Measuring Principle

OHNE DETAILS

U ~ v

U = Induced voltage

v = Flow velocity

Q = v x A

Q = Volume flow

v = Flow velocity

A = Pipe area

Approx. 300 µV per m/s

v L BU e

B = Strength of Magnetic Field

L = Length of Conductor

v = Velocity of Conductor

Father Bonaventura Thürlemann

Switzerland 1909-1997

Proved flow measurement with EMF



04/09/2008


Steve Milford

Slide 12

The Electromagnetic Measuring Principle

Michael Faraday Bonaventura Thürlemann

Start

Electromagnetic Flow Meters commercially available since 1952

http://localhost/var/www/apps/conversion/tmp/scratch_6/MID%20PowerPoint%20Version%20EN.wmv

http://localhost/var/www/apps/conversion/tmp/scratch_6/MID%20PowerPoint%20Version%20EN.wmv



04/09/2008


Steve Milford

Slide 13

Conductivity in Liquids

0.05 µS/cm

1 µS/cm

10 µS/cm

100 µS/cm

1 mS/cm

10 mS/cm

100 mS/cm

1000 mS/cm

Oil, Hydrocarbons

Ultra pure water

Pure water

Industrial water

Potable water

Beer

Milk

Orange juice

Apple juiceTomato juice

Phosphoric acid

Sulphuric acid

Hydrochloric acid

Caustic soda

Food:

Process:

L i q u i d

s > 5 µ S / c m

c o n d u c t i v i t y a r e a p p l i c a b l e

f o r E l e

c t r o m a g n e t i c

Water:



04/09/2008

Steve Milford

Slide 14

Vortex Flowmeter

Measuring Principle



04/09/2008


Steve Milford

Slide 15

Vortex History and Principle

Extract from Leonardo da Vinci’s

sketch book made in 1513

A flag in the wind is moving because of shedding vortices

behind pole

Theodor von Karman

Hungary 1881-1963

Aerodynamics and theory of

‚vortex streets‛



04/09/2008


Steve Milford

Slide 16

Vortex Principle ” Influence of Velocity

“ At low velocity the flow profile remains undisturbed

“ As velocity increases, vortices start to form behind bluff body

“ The frequency of vortex formation is proportional to the velocity



04/09/2008


Steve Milford

Slide 17

The Vortex Measuring Principle

Leonardo Da Vinci Theodor von Karman

Start

Vortex Flow Meters commercially available since 1969

http://localhost/var/www/apps/conversion/tmp/scratch_6/Vortex%20PowerPoint%20Version%20EN.wmv

http://localhost/var/www/apps/conversion/tmp/scratch_6/Vortex%20PowerPoint%20Version%20EN.wmv



04/09/2008

Steve Milford

Slide 19

Coriolis flowmeters

Measuring principle



04/09/2008


Steve Milford

Slide 20

Coriolis history and principle

Gaspard Gustave de Coriolis

France 1792-1843

Defined energy transfer rotating systems

http://localhost/var/www/apps/conversion/tmp/scratch_6/Measuring_principle_high.wmv



04/09/2008


Steve Milford

Slide 21

The Coriolis Measuring Principle

Caspard Gustave de Coriolis

Coriolis Flow Meters commercially available since 1977

Start

http://localhost/var/www/apps/conversion/tmp/scratch_6/Coriolis%20PowerPoint%20Version%20EN.wmv

http://localhost/var/www/apps/conversion/tmp/scratch_6/Coriolis%20PowerPoint%20Version%20EN.wmv



04/09/2008

Steve Milford

Slide 24

Thermal Mass Flowmeter

Measuring principle



04/09/2008


Steve Milford

Slide 25

Mass flow measurement based on thermal dispersion

“ A heated body in a flowing gas stream

gives off heat to the flowing gas due to the

cooling affect of the gas molecules and

mass velocity

“ The amount of heat convected away by

the gas is directly related to the mass flow

rate

“ Commercially available since late 1960s

Thermal Mass measuring principle

“ Mass flow is measured directly

“ Mass Flow = Density . Velocity More later from Mr Chris

Gimson

http://localhost/var/www/apps/conversion/tmp/scratch_6/Messprinzip_t_mass.exe



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Steve Milford

Slide 26

Flow meter selection

l f l



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Steve Milford

Slide 27

E+H Flowtec ” flow meter selection

Why?

Fl M f O l & G



04/09/2008


Steve Milford

Slide 28

Taking a closer look at Liquid Flow

Consider the limitations of older flow technologies:

“ Differential Pressure ” (Orifice Plate since 1900)

limited 5:1 Turndown

creates pressure drop

orifice edge wears/deposits collect causing drift

regular maintenance

long straight run upstream/downstream

dependent upon fluid density

“ Turbine (Invented 1790 used since 1940s)

mechanical wear of bearings causes under-reading

blade damage or deposition causes under-reading

requires regular maintenance to uphold performance

dependent upon fluid viscosity

‚Sister‛ technology Positive Displacement meters

Plus another common technology (not E+H)

Fl M f Oil & G



04/09/2008


Steve Milford

Slide 29

Taking a closer look at Liquid Flow

“ Coriolis

high price

pressure drop

“ Electromagnetic

electrode contamination in some applications

limited by minimum Conductivity

“ Vortex

Accuracy 0.75% o.r. requiring >15D straight run

Requires flow with Re>20,000

Consider the limitations of 20th Century technologies (>1950):



04/09/2008

Steve Milford

Slide 30

Ultrasonic flowmeters

Measuring principle transit-time

Fl M t f Oil & G



04/09/2008


Steve Milford

Slide 31

Measuring principle Ultrasonic transit-time

“ Pulses of ultrasound are transmitted rapidly in alternate directions

“ With no flow, time upstream (tup) = time downstream (tdn)

“ With flow, tup > tdn

“ Transit time difference (∆t) is directly proportional to

“ flow velocity V

“ Volume flow rate Q = V x A (internal cross-sectional area)

t

Downstream Signal

Upstream Signal

tdn

tup

Up

Down (dn)

Flow




04/09/2008


Steve Milford

Slide 32

Time measurement precision

“ National standards agencies maintain an accuracy of 1 x 10-9 seconds per

day, and a precision equal to the frequency of the radio transmitterpumping the master. The clocks maintain a continuous and stable time

scale, International Atomic Time

“ Prosonic Flow precision t = <0.3 x 10-9 secs for every reading

“ i.e. less than half a billionth of a second!

“ Time precision needed is better than the Atomic Clock


http://en.wikipedia.org/wiki/International_Atomic_Time

http://en.wikipedia.org/wiki/International_Atomic_Time



04/09/2008


Steve Milford

Slide 33

Ultrasonic Transit-time ” two forms

Inline = Wetted/Invasive

Clamp-on = Non-invasive




04/09/2008


Steve Milford

Slide 34

Inline ultrasonic

Understanding the capabilities and financial benefits

Steve Milford

04/09/2008

Slide 34




04/09/2008


Steve Milford

Slide 35

Features of Ultrasonic transit time

“ Multi-path Ultrasonic transit time is an approved technology for custody transfer. The

technology is mature and proven.

“ Full-bore creates flow obstruction or pressure drop

“ No moving or wear parts

i.e. eliminates maintenance

“ Independent of fluid properties

e.g. density, viscosity

“ Wide operating range

“ Short inlet run

“ Highly accurate




04/09/2008


Steve Milford

Slide 37

How is Transit-time technology better?

Ultrasonic Meters Offer High Accuracy, Low TCO(Total Cost of Ownership)

Ultrasonic meters are ideal for flow measurement, both technologically and economically. They can

measure flow with a high degree of accuracy, using multiple beams and digital signal

processing. Unlike traditional turbine meters, they have no moving parts, so they require little or no

maintenance.

Ultrasonic meters do not obstruct or slow the flow of gas or liquid through a pipeline. They can

accurately measure the broad spectrum of liquefied petroleum products without having to be proven,

as is the case with mechanical technologies. Ultrasonic meters are sensitive enough to detect the

smallest leaks in a long pipeline, and can measure and compensate for the many variables that can

affect accuracy in custody transfer applications.

Source: ARC Advisory Group 2006




04/09/2008


Steve Milford

Slide 38

Multiple Beam (Path) Ultrasonic Design

Path design and precision are critical to measurement quality




04/09/2008

Steve Milford

Slide 40

Prosonic Flow 92F ” Unique benefits

2-wire loop-powered:

“ Simplified system integration

“ Reduced power supply and cabling costs

“ 4-20mA HART/Profibus PA/Foundation Fieldbus

“ Easy replacement of older 2-wire devices e.g. Turbine

Short upstream approach:

“ Only 5DN required after one or two elbows

“ Simplified piping arrangements

“ Less piping costs

Highly accurate:

“ Calibration traceable ISO 17025

“ 0.5% of reading standard

“ 0.3% optional for DN80 to DN150

1st in the world

WIB report T2732

average €1500 per

installed instrument




04/09/2008

Steve Milford

Slide 41

3-Path:DN25/40/50 or 1‛/1½‛/2‛

2-Path Mid-Radius or 4-Path:

DN80/100/150 or 3‛/4‛/6‛

Prosonic Flow 92F ” Outline specification

“ Cast body 316L/CF3M precision machined

“ Pressure rating maximum PN40/Class 300#

“ Process temperature rating -40°C to +150°C

“ ATEX, FM, CSA, IEC and NEPSI certification

“ 4-20 mA HART/Profibus PA/Foundation Fieldbus




04/09/2008

Steve Milford

Slide 42

Certified, traceable Calibration

Model 92F Multi-beam

Accuracy: 0.5% of reading

(optional 0.3% for 4-Path)




04/09/2008

Steve Milford

Slide 43

Design for superior performance in disturbed flow

The analysis described shows that:

“ Meters with parallel path arrangements perform better than meters with crisscrossed path

arrangements when non-centered swirl is present.

Auth. Gregor Brown, Don Augenstein, Terry Cousins

Caldon Ultrasonics,NuFlo Measurement Systems

92F design Competitor design

Source: 6th International Syposium on Fluid Flow Measurement

Querétaro, Mexico, 16 ” 18 May 2006




04/09/2008

Steve Milford

Slide 44

Design for superior performance in disturbed flow

Source: Fig. 1. „Summary of Errors owing to Swirl for Multipath Meters‚

6th International Syposium on Fluid Flow MeasurementQuerétaro, Mexico, 16 ” 18 May 2006

Path configuration

S w i r l e r r o r %

9 2 F ” D

N 8 0 t o D N 1 5 0

9 2 F ” D

N 2 5 t o D N 5 0

C o m p e t i t o r




04/09/2008

Steve Milford

Slide 45

92F performance @5DN single elbow test

1 2

34




04/09/2008

Steve Milford

Slide 46

92F performance @5DN single elbow test

S p e c i f i c a t i o n ± 0 . 5

%

Prosonic Flow 92F50 @ 5 x DN after 90 degree Elbow

Reference




04/09/2008

Steve Milford

Slide 47

92F performance @5DN double elbow

1 2

3 4




04/09/2008

Steve Milford

Slide 48

92F @5xDN double elbow

S p e c i f i c a t i o n ± 0 . 5

%

Reference




04/09/2008

Steve Milford

Slide 49

92F in Road Tanker loading rack

“ Road tankers are loaded, weighed, verified and used for invoicing

“ Customer states 92F performs better than 0.5%

“ Inlet to meter has zero straight run after two, out of plane elbows

“ The 92F is 2-Path only soinstalled out of spec!

“ 40D straight available at meter

outlet!




04/09/2008

Steve Milford

Slide 50

92F - Tank farm operations and road transport loading

Prosonic Flow 92F

“ Multiple loading arms for road-tankers (trucks)

“ Loading and unloading operations

“ Oils, solvents, chemicals with variable viscosity/density

“ Custody transfer controlled by weigh-bridge

“ Fill road-tankers to maximum, safe volume before weighing




04/09/2008

Steve Milford

Slide 51

92F - Tank farm operations and road transport loading

“ Performance needed typically 0.5% volume

“ Multiple product delivery from same loading arm

“ Viscosity/density variation precludes Vortex, Turbine and DP

“ Bi-directional flow not suitable for Vortex, Turbine and DP

Tank farm operations and road transport loading




04/09/2008

Steve Milford

Slide 52

92F Loading Road-tankers with Acrylic Acid

“ Acrylic acid in DN50 line at 20-25ºC, 3.9 bar, 0.5cP, 1.04 kg/m³

“ Objective is to optimize loading to maximum safe level

“ Tanker is weighed empty and full for custody transfer

“ Previously used E+H Vortex 72F

“ Liquid prone to polymerization with slightest drop in temperature

“ Requires full-bore meter to eliminate blockage from polymer

Prosonic Flow 92F In-line




04/09/2008

Steve Milford

Slide 53

92F loading Road-tankers with Acrylic Acid

“ Pipe stands empty between tanker loading activities

“ Clamp-on was first option but results unsteady, probably due to variable influence from empty

pipe at start-up

“ 92F performs best with superior interrogation of flow and faster recovery from empty pipe

“ Error (fout) below derived from vehicle weighbridge results

“ Six months successful operation

Metingen Prosonic Flow 92 (inline)

Datum 22. Feb 28. Feb 13. Mrz 27. Mrz 24. Apr 10. Jul

Stand totaliser 76.0267 m³ 101.495 m³ 126.957 m³ 177.875 m³ 279.698 m³ 523.430 m³

101.495 m³ 126.957 m³ 152.42 m³ 203.329 m³ 305.165 m³ 548.881 m³

Verschil 25.4683 m³ 25.462 m³ 25.463 m³ 25.454 m³ 25.467 m³ 25.451 m³

Omrekening * 26487 kg 26480 kg 26482 kg 26472 kg 26486 kg 26469 kg

Weegbrug 26600 kg 26600 kg 26630 kg 26600 kg 26680 kg 26590 kg

fout 113.0 kg 119.5 kg 148.5 kg 127.8 kg 194.3 kg 121.0 kg

0.42 % 0.45 % 0.56 % 0.48 % 0.73 % 0.45 %




04/09/2008

Steve Milford

Slide 54

92F on steam condensate

“ Quantify, store and reuse valuable steam condensate saving energy

“ Installed Prowirl 72F and Prosonic 92F ” best performer purchased“ 92F demonstrated greater turndown than 72F and was 100% reliable

“ For 5-10% of time, flow was below 72F Vortex cut-off

“ ‚High-power‛ Mag-meter unreliable due to very low conductivity

“ DP meter tried also caused flashing, and to lesser extent so did Vortex because condensate was

hot near to point of use

Competitor’s ‚High Power‛

‘Mag’ meter

Prosonic 92Frowirl 72F



Clamp-on ultrasonicUnderstanding the capabilities and financial

benefits

Steve Milford

04/09/2008

Slide 55




04/09/2008

Steve Milford

Slide 56

Clamp-on Transit Time works from outside the pipe

‚Clamp-on‛

i.e. non-invasive or non-contact




04/09/2008

Steve Milford

Slide 57

How Clamp-on Transit Time works …




04/09/2008

Steve Milford

Slide 58

Pipe and Fluid data from the user is needed….

Sound velocities & Snell’s Law

“ C1 = Sensor (2400 m/s)

“ C2 = Pipe (e.g. 3230 m/s)

“ C3 = liquid (e.g. 1500 m/s)

c

sin

c

sin

c

sin

1

1

2

2

3

3

2

3

1

“ Path angle in fluid determined by

Snell’s Law

“ Sensor spacing calculated precisely

by Flowmeter & given as alpha-

numeric e.g. B27




04/09/2008

Steve Milford

Slide 59

Spacing Ruler sets the Sensor spacing accurately…




04/09/2008

Steve Milford

Slide 60

Prosonic Flow Clamp-on Customer Installation Video




04/09/2008

Steve Milford

Slide 61

Permanent acoustic Couplant

“ Adhesive Couplant

“ Applied like regular Couplant

“ Proof-commission first

“ Cures in 2-3 days @20ºC

“ Maintenance precluded

“ Performance unaffected




04/09/2008

Steve Milford

Slide 62

Permanent Acoustic Couplant ” Compressible Pad

3x 3600 mm Fabricated tubes

Culvert for crossing of polder water under the

Amsterdam-Rijn channel to wash the Amsterdam

channels.

The culvert is sunk into the bottom soil of the

channel




04/09/2008

Steve Milford

Slide 63

Application: City of Amsterdam




04/09/2008

Steve Milford

Slide 64

What it gets confused with….and what it is not….

f ~ v ~ Q f = frequency shift

v = local flowing velocity

Q = volumetric flow

….Doppler

It is important to know that Doppler:“ is not suited to clean liquids

“ can be unreliable due to unpredictability of scatter source

“ has different performance expectations to Transit-time

“ misrepresents Ultrasonic Clamp-on technology




04/09/2008

Steve Milford

Slide 65

Clamp-on Transit-time performance…ideal conditions

Calibration rig:

3 runs per point

0

-0.5

-1.0


l f h f ld



04/09/2008

Steve Milford

Slide 66

Clamp-on performance….in the field

“ Calibrated on Flow Rig:

“ Specification: 0.5% o.r + 0.02% o.f.s

“ Repeatability: < 0.3% at >0.3 m/s is always maintained

“ Installed in the field:

“ Additional uncertainty due to:

“ exact pipe material and dimensions

“ exact sensor positioning

“ typical additional uncertainty:

“ Clamp-On < 1.5%


l f h f ld



04/09/2008

Steve Milford

Slide 67


“ The Application

“ Energy measurement

“ Liquid: Water (90…130°C/195…265 °F)

“ Pipe: Mild steel (508 x 11/20‛ x 7/16‛)

“ Set-up: Spacing 750.41mm/29.5‛

“ Site: (Stadtwerke Karlsruhe)

“ Reference ” custody transfer ultrasonic

Prosonic Flow 91W (130 °C/265 °F

The test result (correlation coefficient = 0.9965)


Cl f h f ld



04/09/2008

Steve Milford

Slide 68


Refinery Terminal pipeline

“DN800/31‛ Heavy Furnace Oil 180 CentiStokes

“DN1000/39‛ Diesel Oil

Clamp-on installation

“ no cutting/welding

“ accuracy verified as <1% to Custody Transfer meters

Photograph courtesey of PADCO,

Pakistan




04/09/2008

Steve Milford

Slide 69

Clamp-on…is the meter working correctly?

“ The meter calculates the acoustic path length in the liquid

“ Sound velocity = Path Length ÷ (tup+tdn/2)

“ Basic transit time function verified against physical properties

“ Direct relationship e.g sound velocity +1% = flow velocity +1%


Cl f i ll i di i



04/09/2008

Steve Milford

Slide 70

Clamp-on performance….poor installation conditions

“ Credible performance demonstrated

“ Major causes of error:

“ A) flow regime (Re < 6000)

“B) Incorrect pipe material data

“C) Installation effects ” see table below

and note all errors are minus polarity

Source of flow profile

disturbance

Influence (% reading) at separation distances of

5 D 10 D 20 D

Single bend -3 to -8 -2 to -6 -1 to -4

Gate valve

(2/3 open)

-2 to -3 -2 to -3 0 to -1

Reducer (2:1) -1 to -3 0 to -2 0

Expander (1:2) -3 to -5 -2 to -4 0 to -2

Double bend -5 to -7 -3 to -6 -4 to -5

Published October 2005


Cl f i t ll ti diti



04/09/2008

Steve Milford

Slide 71


Best

Plan view

Highest reading under steady flow in any radial

position is the most accurate when insufficient

straight run approach is available. Tests indicate

single 90° pipe bend has optimum position as

shown on left


l f ll d



04/09/2008

Steve Milford

Slide 72


“ BUT…..how does this actually compare to a commonly found flowmeter …. DP Orifice? A

conventional DP Orifice plate has:

0.5% to 1% of full scale in ideal installation

20 to 75 D upstream (ISO 5167)

4 to 8 D downstream

Departure from ISO 5167 yields significant error (ISO TR 12767) e.g. =0.8 downstream

from single 90° bend:

Limited turndown e.g. 5:1

Essentially uni-directional Significant maintenance costs

Orifice wear/upstream face deposition errors

Significant pressure loss/leak potential

Requires shutdown to install/replace

Process dependency e.g Density

10D -2 to -6%5D -3 to -8%

8D 3.2% 4D 5.6% Orifice Plate DP

Clamp-on Transit time

Orifice DP


Cl f t i ti



04/09/2008

Steve Milford

Slide 73

Clamp-on performance….put in perspective

“ Your application may ideally need a flow meter with traceable certificate dynamic ‚wet‛

calibration

“ Clamp-on cannot truly provide this (neither can traditional DP!)

“ However, clamp-on can give you a flow measurement with 0.3% repeatability today,

probably with <2.0% of absolute value with minimal installed cost andwithout process

shutdown

“ The ideal in-line meter can be installed at the next planned process shutdown but

clamp-on can help safely start your process back up immediately

“ The clamp-on meter can then go on the shelf until needed again

“ The clamp-on meter could remain installed as continuous verification of the new in-line

device


V l l l ti i O & G P t h i l



04/09/2008

Steve Milford

Slide 74

Value calculations in O & G, Petrochemical

100 m

New DN150/6‛ Flowmeter

needed here

Example: New meters required on terminal for Lubricity Additive injection and line-

flushing control

“ In-line meters are first considered along with installation costs

“ The Clamp-on approach is similarly evaluated (Clamp-on costs)

“ Necessary isolation valves are located 100 metres apart


Value calculations in O & G Petrochemical



04/09/2008

Steve Milford

Slide 75


“ Project Management Labour: Health & Safety, contract planning & supervision possibly

40 x $60 (Employer rate) = $2400

“ Labour cost: stop line, vent, purge, gas test, cut & weld possibly 48 x $40/man hour =

$2000 plus N 2 & steam costs

“ Cost of lost product from line, so for DN150 line x 100m we have around 2m³

@$600/m³ = $1200

“ Possible lost production with throughput of say only 2000 BBLS or 300

m³/day x 3 days @$600/m³ or $540,000

“(equivalent only to 4.0 hours/day flowing at 1.2 m/s)

“ Method Statement/Risk Assessment/Control Measures “ Isolate line, vent product, break line

“ Steam clean/Nitrogen purge

“ Gas test, cut, weld flanges

“ Install & commission new flowmeter

“ Leak test, start process back up

Installation considerations for Hydrocarbon/Chemical Industry:

($960)

($0)

($0)

($0)

(Product costs based upon 6 month average Contract Rate ULSD to January 2008)


Value calculations in O & G Petrochemical



04/09/2008

Steve Milford

Slide 76


“ Fast & simple installation

“ No shutdown

“ No safety hazards

“ No lost revenue

“ No maintenance issues


Verification of in-line meters with Portable



04/09/2008

Steve Milford

Slide 77

Verification of in-line meters with Portable


Special Products & Applications for Oil & Gas



04/09/2008

Steve Milford

Slide 78

Special Products & Applications for Oil & Gas

Permanent, calibrated Clamp-on Sensors for non-contact,

special material, high pressure e.g. water re-injection

Velocity of Sound Sensors

Interface detection on Multi-product pipelines

Clamp-on flow and density for mass flow to <2% accuracy

without shutdown


Applicator: Selection of measurement technologies



04/09/2008

Steve Milford

Slide 79

Applicator: Selection of measurement technologies


Applicator: Selecting a measurement parameter



04/09/2008

Steve Milford

Slide 80

Applicator: Selecting a measurement parameter


Applicator: Selecting a measurement technology



04/09/2008

Steve Milford

Slide 81

Applicator: Selecting a measurement technology


Applicator: Selecting the Product



04/09/2008

Steve Milford

Slide 82

Applicator: Selecting the Product

Next step


Applicator: Flow sizing



04/09/2008

Steve Milford

Slide 83






04/09/2008

Steve Milford

Slide 84


Next step



04/09/2008

Steve Milford

Slide 85

Questions anybody?



04/09/2008

Thank You!

Documents

Flow Measurment O&G Sept08