Murag Broschuere Final 01

8/19/2019 Murag Broschuere Final 01

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MURAGListen to your reservoir

ENGLISH



32 RAG.TECHNOLOGY. SALES&SERVICES

Unit operating cost-cutting technologies – UOC (fluid)

1 USD/bbl – with focus on corrosion control, automation

and smart artificial lift solutions are the essentials to be

successful in mature field operations.

How to turn a depleting resource into a

business opportunityThe new business unit “RAG Technology Sales &

Services” offers upstream solutions leading to extra-

ordinary meantime between failure (MTBF) increase

from half a year up to 7 years without well intervention.

Consequently a significant unit operating cost reduction

(20 – 40 %) and production increase due to reduced

downtime can be achieved.

Material selection and corrosion management

Efficiency aspect by material science

In order to reduce corrosion rates RAG embarked on a

concerted effort of metallurgy, chemistry and produc-

tion technology and reduced in the course of a 3 years

campaign the annual corrosion rate from 4 mm/year to

less than 0.004 mm/year which is an improvement by a

factor of 1000. Another success in increasing runtimes

of artificial lift systems has been reached by selecting

specific materials. The implementation of relined tubing

systems within RAG increased the runtime of particular

wells by the factor 20.

MURAGSmall step with huge impact

A further in-house technology called MURAG, a small

device mounted on the wellhead, is used for fully auto-

mated fluid level control based on acoustics. The system

allows to set fluid levels by remote control to produce

each well at its optimum drawdown. This provides a

new way of digitalization of the pump device which can

be applied to any type of pumping system like Electric

Submersible Pumps (ESP) or Progressive Cavity Pumps

(PCP). At the same time simple pressure buildup tests

can give frequent well and reservoir performance infor-mation with very short interruption of the production

process – just by stopping the well from your office

desk, gathering the data and restart production.

Based on this experience and expertise RAG conti-

nuously develops its own production technologies. To

better meet these future demands, RAG Technology

Sales & Services offers the know-how of 50 years

“TAIL END production” to all customers worldwide

with its technology and operation services built up in

more than 80 years within RAG.

We offer the following services as an expert formature fields

% Project Management

% Production Fluid Management

(Corrosion, Paraffin, Scaling)

% Production Services

% Engineering Services

% Well Services

% Drilling Services

80 years of history, extensive experience in oil & gas exploration,

production, and storage operation play a key role in unlocking significant

energy resources.

The company

RAG is Austria’s oldest established exploration, pro-

duction and gas storage company, founded in 1935 as

a Joint Venture between Shell and Mobil. In 2007, after

70 years of oil&gas production solely focused on Austria,

the two Majors left RAG as an independent company.

The core areas of business are crude oil and natural gas

exploration and production, trading and gas storage.

Integrated E&P Services (Drilling, Well Engineering,

Completion and Testing, Wireline and Slickline Services)

as well as production technology and mature field

operation expertise support RAG business areas, joint

venture partners and external customers.

RAG provides highest level of technical and economic

performance and defends its competitive position

based on innovation.

RAG is one of the leading Austrian companies with

total assets of some 700 Mio EUR financed by roughly

30 % equity and around 400 employees. The company

generates revenues of some 450 Mio EUR, a cash flow

of some 150 Mio EUR, and achieves a profitability of

more than 15 % (ROACE). Furthermore, RAG is the 4th

largest Underground Gas Storage operator in Europe

with a total storage volume of 5.7 billion cubic meters.

RAG has discovered and developed 175 oil & gas fields

and has produced over 15 million tons of crude oil and

27 billion cubic meters of natural gas during the past

80 years. With the background of long standing ex-

perience RAG offers highly specialized know-how,

technologies and services in operating mature oil and

gas fields.

Unlocking resources in tail-end oil production maximi-

zing recovery in gas fields and turning depleted reser-

voirs into gas storages form part of this expertise.

In the oldest field Zistersdorf an economic tail end

production with water cut up to 98 % underlines the

expertise of RAG to handle mature field challenges

successfully for more than 50 years.

Meantime between Failure

– Reduce expensive workover

– Saving of operating costs:~80.000 $/well/year

– Increase of well test efficiency

180

160

140

120

100

80

60

40

20

0

N u m b e r o f F a i l u r e s / 1 0 0 W e l l s

2 0 0 0

2 0 0 1

2 0 0 2

2 0 0 3

2 0 0 4

2 0 0 5

2 0 0 6

2 0 0 7

2 0 0 8

2 0 0 9

2 0 1 0

2 0 1 1

2 0 1 2

2 0 1 3

Failures / 100 Wells

MTBF 0.6 years

MTBF 6.8 years

Concession area Zistersdorfsupermature oilfield asbest practice example

RAG production & storage history

25,000

20,000

15,000

10,000

5,000

0

250

200

150

100

50

0

P r o d u c t i o n [ b b l / d a y ]

U G S T O V o p e r a t e d [ b c f ]

1 9 3 7

1 9 3 9

1 9 4 1

1 9 4 3

1 9 4 5

1 9 4 7

1 9 4 9

1 9 5 1

1 9 5 3

1 9 5 5

1 9 5 7

1 9 5 9

1 9 6 1

1 9 6 3

1 9 6 5

1 9 6 7

1 9 6 9

1 9 7 1

1 9 7 3

1 9 7 5

1 9 7 7

1 9 7 9

1 9 8 1

1 9 8 3

1 9 8 5

1 9 8 7

1 9 8 9

1 9 9 1

1 9 9 3

1 9 9 5

1 9 9 7

1 9 9 9

2 0 0 1

2 0 0 3

2 0 0 5

2 0 0 7

2 0 0 9

2 0 1 1

2 0 1 3

Oil Zistersdorf

Oil Upper Austria

Underground

Gas Storage



Fluid Level

Sucker Rod Pump

PCP and ESP

Reservoir

Pump Unit

Anchor

MURAG Signal

Headquarter

54 RAG.TECHNOLOGY.SALES&SERVICES

Fully Automated Fluid Level Measurements –

A Fit-for-Purpose Technology for optimizing Oil

Production and Gas Well Dewatering Operations

The unique feature of the MURAG is its fully automated and purely electronic

functioning. The measuring device is enclosed, mounted on the casing outlet,

has a pressure rating of 5000 psi and – contrary to conventional devices – works

without the need of a gas gun.

Compared with conventional downhole sensors mounted on downhole

pumps the device is insensitive to high well fluid temperatures and simple to

maintain due to its easy access on the well head.

Additionally, it has a Stand-Alone Software package (Down-hole fluid level

measurement) and is able to provide a sampling rate of up to one measure-

ment per minute. The measured fluid level data can be transmitted via SCADA

system as well.

The measurement tool enables to run downhole pumps in a safer and more

efficient way. It can be used to avoid pump-off conditions and the resulting

serious equipment damage. It can also be used to control a VSD (Variable

Speed Drive) to keep the fluid level in a well at a specific depth to avoid down-

hole flow conditions below the bubble point pressure in oil production. Due to

the availability of online fluid level data all types of pumps (e.g. ESP, Sucker

Rod Pumps, PCP) can be operated safely at more aggressive production rates.

Bottomhole Pressure from Fluid LevelFurthermore, the continuously available fluid level data can be used to

derive bottomhole flowing and build-up pressure for production performance

monitoring and reservoir engineering applications.

The technology has been developed and tested over the past 10 years in

the RAG oil & gas fields and has proven to be a valuable tool to optimize

operations of artificially lifted wells in oil, gas (dewatering) and geothermal

applications.

Application AreaPressure Rating: 5000 psi

Ambient temperature: -20°C to +50 °C

Internal temperature: max. +50 °C

H2S content: max. 500 ppm

Special Features– Fully automated and purely electronic functioning

– All types of pumps: ESP, Sucker Rod Pumps & PCP

– Insensitive to high well fluid temperatures

– Stand-Alone software package

– Safer and more efficient

– Avoid pump-off conditions

– Substitute for downhole gauges

– Reservoir engineering application

– Developed and tested by RAG over the past

10 years

Function 2: Bubble Point Control

Function 1: Pump Control

Function 3: Reservoir Characterization– Pressure Build up Curve– Well Interference Test

Function 4: Condition Monitoring(under development)



shut down pump

shut in for pressure built-up

built-up completed (online monitoring)

start productionimmediate conclusionsand reaction

76 RAG.TECHNOLOGY. SALES&SERVICES

MURAG versus Conventional Devices

MURAG Software

Fluid Level Measurement

Reservoir Characterization through Pressure Built-Up Measurement

MURAG Productline

– discrete information(days, weeks, months)

– manned– discontinuous

– mechanical

highly interrupted production

Fluid level measurement MURAG Conventional

Value of information high low

Content of information high low

Matter of conclusion high low

Control of production high low

Optimization of production high low

Evolution of system 4th generation parent

Pressure built-up MURAG Conventional

Costs low € high € € € €

Data availability on line off line

Duration just right maybe too long/short

Repetition as required low

Reaction time short long

Evolution of system 4th generation parent

MURAG System – Basic Package:

% MURAG HDJD 5000 High pressure

Sensor Unit

% MURAG Front End Processor

(Signal Generation, Analysis & Transmission)

% MURAG Oil Level Software

MURAG System – Extension Packages:

% MURAG BPfFL Module

% MURAG Hook Up Kit

% MURAG Control Cabinet (Indoor & Outdoor)

% MURAG Service Support

Time Time

Time

F l u i d L e v e l

F l u i d L e v e l

P r o d u c t i o n

P r o d u c t i o n

days, weeks of months between measurements

% automatically (every minute)

% unmanned

% continuous

% electrical / digital

(control of pump-speed viavariable-speed-drive)

%mostly uninterrupted production

workover

to runmemorygauge

production beforepressure built-up

shut in for pressure built-up

built-upcompleted ?

workover to pull

memorygauge

start production again

read-out and interpretationof pressure built-up conclusionsand reaction

shut down pump

time

b a r

m e t e r

Well Interference Test

Pump at WELL 1 turned off

Pump at WELL 2 turned off Fluid level at WELL 1 continues rising

Oil Level Software

Measured Fluid Level

Signal Processing

Pressure Build Up Curve –Downhole Gauges vs. MURAG

60

50

40

30

20

10

0

P r e s s u r e [ b a r a ]

1 0 . 1

2 . 0

9

1 5 . 1

2 . 0

9

2 0 . 1

2 . 0

9

2 5 . 1

2 . 0

9

3 0 . 1

2 . 0

9

0 4 . 0

1 . 1

0

0 9 . 0

1 . 1

0

1 4 . 0

1 . 1

0

1 9 . 0

1 . 1

0

2 4 . 0

1 . 2

0

Pressure from downhole

gauge (blue) vs. pressure

at gauge depth (red)

calculated from MURAG



RAG.TECHNOLOGY.SALES &SERVICESRAG Rohöl-Aufsuchungs Aktiengesellschaft · Schwarzenbergplatz 16 · 1015 Vienna · Austria

www.rag-austria.at · [email protected]

Legal notice

Published by: RAG Rohöl-Aufsuchungs Aktiengesellschaft

Schwarzenbergplatz 16, 1015 Vienna

Editorial content: RAG

Graphic design: Marianne Prutsch Werbeagentur

Pictures: RAG archives, steve.haider.com

Printed by: druck.at Druck- und Handelsgesellschaft mbH, 2544 Leobersdorf

Status September 2015

Produced in accordance with

Austrian ecolabel standards

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Murag Broschuere Final 01

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