REMMS Overview

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© 2007 Weatherford. All rights reserved.

Red Eye Multiphase Metering System

(REMMS)

Ola Ogunmakin

July, 2010




Compact REMMS (REMMS-C)

•

Released for Production in Q3 2!

2

"irst Protot#pe $eing assem$led for testing%

Offshore Application

& 'nder 3 meter eigt limit

& essel

& Continuous measurement for

*ell optimi+ation , profiling

& arge slug andling capa$ilit#

& "ull# automated

& Mod$us o.er /CP0P& Class 1 i.ision 1

& "ull ser.ice , support org%



© 2007 Weatherford. All rights reserved.3

Outline

• REMMS Overview

• Major Advantages

• Method of Separation

• Typical Applications

• Conventional Instrumentation




• eatherford!s REMMS com"ines compact separationtechnology with conventional li#uid and gas meteringto provide a complete multiphase measurementsolution$

• A %ow computer controls process conditions withinthe system as well as interpreting and recording dataproviding communications with e&ternal hostsystems$

• The principle of the operation is "ased on inducing"ul' separation of the li#uid and gas phases "ycreating a cyclonic %ow pattern$

• Once separated( the individual streams aremeasured with conventional li#uid and gas meters$

The separated phases are then recom"ined or

transported in separate %ow lines$• )ighlights

– *on nuclear

– Conventional instrumentation

– Real time data for well optimi+ation

– , to -,, . /01 operating range

– )igh accuracy

REMMS Overview




Major Advantages

• Real time data for continuous mode monitoring$

– Continuous production information helps to ma&imi+e2optimi+eproduction$

• 3ower operating cost$

• Standard conventional controls$

• Can "e fully automated$

• Slug handling capa"ility$

– The cyclone separator has the a"ility to handle four times ma&imumnormal instantaneous li#uid %ow rate$

• 3arge turndown$

• )igh accuracy$




Method of Separation

• eatherford4s REMMS can "e designed to handle any 56phase %ow

condition$ The 56phase %uid enters the main "ody through a narrowtangential inlet into the vertical separator "ody$ This forces the li#uid andgas to accelerate through the inlet and around the vertical a&is of the main"ody( creating a vorte&$

• 7ue to the large density di8erence "etween the gas and li#uid phases( thegas migrates #uic'ly to the center while the denser li#uid travels to the

wall$ The cyclone e8ect has some damping capa"ility( and when coupledwith control valves on the gas and li#uid legs( produces an e9cientseparator system with a very wide operating range$ The result is anengineered system that can handle the whole range of %ow regimes fromsteady state to slug %ow$


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Method of Separation

Three :haseInlet Arm

3i#uid ;Oil < ater=Section

/as Section

Centrifugal

Force


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Typical Applications

• ell Testing

– Replaces conventional >6phase and 56phase test separators$

– Automated system$

– Short residence time( resulting in shortened well test time$

– Turn6down ratios from ?,2- for single meters and up to -,,2- withmultiple meters$

•Individual ell Monitoring

– Continuous monitoring$

– Optimi+ation of gas lift( water or steam6%ood injection rates$

– Individual real6time well production data$

• :orta"le ell Testing

–

Capa"le of "eing moved from location to location for @e&tended welltests$

– 3ong duration( unmanned testing$


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Conventional Instrumentation

• Coriolis Mass Meter

–

3i#uid mass rate – 3i#uid density

– 3i#uid temperature

• 0orte& Shedding Meter

– Actual gas volumetricrate

•Red Eye >/ ater CutMeter

– ater cut percentage

• 7i8erential :ressure Transmitter

– /3CC li#uid level

• :ressure Transmitter – /as pressure

• Temperature Transmitter

– /as temperature

• Control 0alves

• Remote Terminal Bnit

Supports all production testingmodes

& Semi6automatic

& Automatic

& Manual

• Operator Interface Control

3ocal display of process data and%ow rates


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• Manufacturer

– Micro Motion

• Model

– Elite Coriolis Meter

• Measured :arameters

– Mass %ow

– 3i#uid density

– 3i#uid temperature

3i#uid Coriolis Mass Meter

1



Coriolis Meter 6 Construction

• Comprised of two components

– Sensor

– Transmitter

11



Coriolis Meter 6 Sensor

12



Coriolis Meter Transmitter

• 1ield Mount Transmitter

– ModelD >,, M07

– >? 07C

– ?6wire Interface to Sensor

– MO7FBS Communication

13



Coriolis Meter Operation

• The drive coil is mounted at the center of the tu"es and is used

to oscillate the tu"es$• The coil is energi+ed and forces the movement of the magnet

mounted on the opposite tu"e$

• :ic'6o8 coils on each side of the tu"es measure the amount ofde%ection of the tu"es when %uid %ows through the meter$

1



Coriolis Meter *o 1low Condition

• 7uring no6%ow conditions( there is no Coriolis e8ect( and no twist

is imparted on the tu"es$• The sine waves generate "y the inlet and outlet pic'6o8s are in

phase with each other$

14




Coriolis Meter 1low Condition

• hen %uid %ows through the tu"es( the Coriolis e8ect causes thetu"es to twist in opposition to each other$

• This causes the sine waves from the inlet and outlet pic'6o8s to"e out of phase$ This phase shift is proportional to the mass %owrate$

15




• 7ensity measurement is "ased on the natural fre#uency of the

oscillating tu"es and %uid$ – As mass increases( the natural fre#uency decreases$

– As mass decreases( the natural fre#uency increases$

Coriolis Meter 7ensity

16




• 7ensity measurement is derived from the tu"e oscillation fre#uency$

The fre#uency is ta'en from the left pic'6o8 ;3:O= coil$• Since the volume of the tu"es is constant( any change in the mass

of the tu"es is caused "y a change in density$

Coriolis Meter 7ensity

17




• A Resistive Temperature 7evice ;RT7= is attached to one of the

%ow tu"es$• :rocess temperature is transferred through the tu"e to the RT7$

Coriolis Meter Temperature

1!




• Manufacturers

– Rosemont( 1o&"oro ( Endress and )auser


– Actual volumetric %ow

/as 0orte& Shedding Meter

2




/as 0orte& Shedding Meter 6 Operation

• 0orte& shedding is caused when %uid %ows past a "lunt o"ject$

The %uid %ow past the o"ject causes alternating low6pressurevortices on the downstream side of the o"ject$

• The fre#uency of the alternating shedding process isproportional to the velocity of the %owing stream as it passesthe point of contact$

21




8lternating ortices

22




• Manufacturer

– eatherford

• Model

– Red Eye >/


–ater cut percentage

Red Eye >/ ater Cut Meter

23



© 2007 Weatherford. All rights reserved.Slide 2

• 3ocal 7isplay6

ater cut( ell G( Mod"us id( <Status

• > to >? :ipeline Si+es

• , to -H,C process %uid temp$range

• 6?, to JHC am"ient operatingtemp

• 3ow 0oltage2:ower -,65,07C KJatt

Operational 1eatures

Connection Pipe Sizes

- *:T > -, inch-6-2> A*SI J,, R1 > >? inch

-6-2> A*SI L,,2-H,,R1

> >? inch

> A*SI L,,2-H,, RT 5 N inch




& 1le&i"le I2O

– Analogue for water cut( %ow meter <well selection

– RS6>5> < RS6?NH data ports

– Supports Mod"us RTB ;standard=

& Certied toD – 1M < CSA Class -( 7iv$ -( /roups C < 7

– ATEP EE& d IIF T5 TaQNH deg C$

Operational "eatures

Conguration usinga :7A < serialca"le




:ro"e

Rugged

& 5-J Stainless Steel pro"e;standard= or )astalloyC>J

& Sapphire glass windows

weld sealed




• The measurement is "ased on near6infrared a"sorption

spectroscopy where oil and water are easily di8erentiated$• Simultaneously measures multiple wavelengths that include "oth

water and oil a"sor"ent pea's$

Red Eye >/ ater Cut Meter 6 Operation

26




:rinciple Technology < Advantages

• Multiple a"sorption measurements

6 using several wavelengths

• Eliminates secondary attenuationerrors

6 from factors such as varying emulsionlevels

• Simple Cali"ration

6 re#uire only pure @dead %uid samples

6 and no %owing reference




• Manufacturer

– 1o&"oro

• Model

– RTT>,


– Temperature

Temperature Transmitter

2!




• Manufacturer

– 1o&"oro

• Model

– I/:-,


–:ressure

:ressure Transmitter

3




7i8erential :ressure Transmitter

• Manufacturer

– 1o&"oro

• Model

– I7:-,


–

3evel

31



• 3i#uid and gas control

valves are used tomaintain the /3CClevel

• 0alve Manufacturer

– Masoneilan 21isher

• Actuators

– :neumatic;:referred= 2Electric

;Accepta"le= – Masoneilan 2

Rotor'

• Adjusta"le position ;,to -,,.=

Control 0alve and Actuator

Documents

REMMS Overview