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Subsea

Boosting

Systems

Enabling

Tiebacks from

Deep Water,

Marginal and

Remote Fields

Kuching, 26. January 2011

Mads Hjelmeland

Regional Manager

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Content

Introduction

Subsea Boosting and Compression Why subsea boosting?

Subsea Boosting Systems for Subsea Tiebacks Total system approach and key building blocks

Subsea Boosting and Tiebacks over 15 years At a glance

Wet Gas Compression Tieback of Stranded Gas Qualified and available

Summary

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CUSTOMER SERVICES

& FRIEND Framo Interactive Enabling Diagnostics

Real-time remote condition monitoring

Full project execution capabilities

MULTIPHASE

METERING SYSTEMS

PUMPS & SUBSEA

SYSTEMS

FACILITIES

400 employees in Bergen, Norway

New test and assembly facilities

under construction

A complete range of pumps designed

for different well conditions

Advanced multiphase meters for

measurement of oil, gas and water

flow rates

SWIVELS & MARINE

SYSTEMS Fluid transfer systems for FSO, FPSO

Offshore Cryogenic Transfer

Subsea Loading Systems

Segments

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Content

Introduction

Subsea Boosting and Compression Why subsea boosting?

Subsea Boosting Systems for Subsea Tiebacks Total system approach and key building blocks

Subsea Boosting and Tiebacks over 15 years

At a glance

Wet Gas Compression Tieback of Stranded Gas

Qualified and available

Summary

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With few exceptions subsea oil fields have up to now been flowing by their own pressure and/or assisted by pressure maintenance such as water/gas injection and to some extent gas lift

The new challenges: Deeper water Heavier oil Less productive reservoirs Low pressure/extreme high pressure Flow assurance challenges Increased tie-backs/tie-backs of remote satellites Maturing of 1st generation subsea fields Reservoir uncertainties and low recovery factor

Field Developments and Challenges

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Reservoir

Boosting of pipeline pressure

Long distance tie-back

Produce to shallow waters

Increased Recovery

Minimize effect of vertical riser

Subsea Boosting System

Power/Control

Wells

Subsea Boosting Systems

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Pwh Pd

MPP

Increased

production

MPP diff.

pressure

(Pd)

FLOW FROM WELL

PR

ES

SU

RE

Natural production

Subsea Boosting Systems Flowing wellhead pressure vs system resistance

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Extended Plateau Production

Increased Recovery over Field Lifetime

Early Natural

Production

Free Flow To Surface +

Boosting

-In Well Lift

- Boosting

-Processing

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Benefits of Subsea Boosting

Increased Production and Recovery

Accelerated and prolonged plateau production Increased Recovery

Tieback of Fields and Production Enabling

Well kick-off Extended reach of remote fields and wells

Flexibility wrt Subsea Integration

Applicable for Green-fields as well as retrofit to Brown-fields XT integrated to Freestanding Modules with well tie-ins, etc

Commercially attractive solutions

Relative short payback time Maintenance by ROV and light intervention vessel

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IOR effect of Subsea Boosting

The well will flow at lower pressure

Weak wells can be produced together with strong wells Weak wells can be produced for a longer period before dying Weak/dead wells can be started with the pumps More efficiently reservoir drainage when wells can flow at higher rate More controlled drainage

The liquid production rate will be higher

Fields can be produced longer before critical low flow is present (slugging and cool-down problems)

Economical cut-off will be at a higher water-cut

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Content

Introduction

Subsea Boosting and Compression Why subsea boosting?

Subsea Boosting Systems for Subsea Tiebacks Total system approach and key building blocks

Subsea Boosting and Tiebacks over 15 years

At a glance

Wet Gas Compression Tieback of Stranded Gas

Qualified and available

Summary

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Subsea Boosting System Total System Approach

Topside Power & Control Module

Power & Control Umbilical

Subsea Transformer

Subsea Pump Station

Intervention System

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Typical Power & Control Module

Integrated module designed for single lift installation Fully tested and prepared for Plug & Play Minimise offshore work

VSD

HVAC

HPU 1*

HP

U 2

*

Controls

*HPU1 : Barrier fluid *HPU2 : Control fluid **F&G : Option

F&G

**

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All services included in one umbilical

Minimum of interfaces

Designed for variable frequency power supply

in combination with controls functions

Steel tube or hose for hydraulic line

Integrated Power & Control Umbilical

Umbilical range from Single Power cables

to complete Power & Controls umbilical.

Key power system element

In-house competence on design, layout,

handling, testing and commissioning

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FDS Framo Dual Pump Station

High capacity

Max boost pressure

High flexibility

Potential redundancy

Integrated metering (optional)

Filtering (for water injection)

FSS Framo Single Pump Station

Compact System

High flexibility modularization

Phased development

Well suited for UDW applications

Light lifts

FMM Framo Multi-Manifold

Combined production, boosting and metering

Max integration

Minimum interfaces

Subsea Boosting System Pump Stations and Manifolds

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Pioneering within Subsea Boosting

1983

Framo Engineering established to develop subsea oil & gas technology for the next decades

1984/5

Screening boosting technologies

First prototypes tested

1987

Selected the Helico-Axial pump principle

1994

Developed the electrical power and control system for subsea pumps

1997

First commercial subsea multiphase pump installed at Lufeng field

Track record second to none with more than

1 million operating hours.

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0

50

100

150

200

250

10 20 30 40 50 60 70 80 90 100

GVF [%]

DP

[bar

]

HxC Hx

WGC

Cx

Framo has a range of pump and compressors that cover the

full range from pure liquid to pure gas conditions

Subsea Boosting System All Process Conditions

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Same Mechanical Design Same Subsea Interface Different Hydraulics

Centrifugal

Pump

Hybrid

Pump

Multiphase

Pump

Standardised Interfaces

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Content

Introduction

Subsea Boosting and Compression Why subsea boosting?

Subsea Boosting Systems for Subsea Tiebacks Total system approach and key building blocks

Subsea Boosting and Tiebacks over 15 years

At a glance

Wet Gas Compression Tieback of Stranded Gas

Qualified and available

Summary

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Subsea Boosting System Experience

ELSMUBS

30 ft DRAUGEN

900 ft LUFENG

1100 ft TROLL

1200 ftTOPACIO

1700 ftCEIBA

3000 ft

GoM

5000

10000 ft

GULLFAKS

0 ft

AZURITE

4500 ft

ELSMUBS

30 ft DRAUGEN

900 ft LUFENG

1100 ft TROLL

1200 ftTOPACIO

1700 ftCEIBA

3000 ft

GoM

5000

10000 ft

The EvolutionGULLFA