Levetidsforlengelse av Existerende felt

Oppgradering av kontrollsystemer subseaErfaringer og losninger fra Tordis og VigdisFebruary 8th 2012

IFEA – Feb 2012

Need to adapt to changing field situations over timeUp front field knowledge is often limited and reservoirs significantly change over time

Managing older assets is often limited by old technology, instrumentation and flow control

New reserves becoming more difficult / costly to develop

Transfer of older assets to new producers creates a need for offerings that will maximize assets performance

Equipment obsolescence challenge for older fields

Field life extending well beyond original design datesHow to solve the changing operations puzzle?

The Technology Insertion Solution

IFEA – Feb 2012

The Brownfield technology time bomb

Obsolete equipment

Coming to end of natural life

Long repair times, often needing re-engineering

Today

1983

Compared to other industries much shorter expected operational life – affects availability of your equipment

IFEA – Feb 2012

Enhanced oil recovery from ageing assets

The Brownfield Opportunity

IFEA – Feb 2012

Improved performance thru technology insertion

AMV PMV

PWVAWVCOV

MPF

M

ChokePWV

Sensor

New Loop

BlockedDisabled

MIVSIV

MIV

AMV PMV

PWVAWVCOV

MPF

M

ChokePWV

Sensor

New Loop

BlockedDisabled

MIVSIV

MIV

SemStar5

Other subsea

equipment

Sensor upgrade

s

SmartCenter remote

link

Flow loop

insertion

ModPodExisting field

- plus increased viability of marginal extensions &

tiebacks by incorporating key technologies

Increased subsea

functionality & processing

power

Efficiency gains from subsea

systems integration

More immediate

support from virtual experts

Improved flow by better

information, better control

IFEA – Feb 2012

SemStar5 – next generation intelligence on the seabed

Subsea TCP/IP NetworkModular ApproachIP EnabledRemote ConnectivitySubsea Data HubEnhanced Diagnostic capability

SIIS & IWIS fully compatibleStandard Sensor InterfaceFully ISO 13628-6 Compliant SEMSupports for future topologies & architectures

IFEA – Feb 2012

SCM

SCMMB*

Adaptor

Existing SCMMB*

Multi-product interface adaptor

Production, injection & manifold installation

More retrofit options

Enables SCM & SEM consistency across installed base

Simplifies tooling requirements

Faster intervention operations

Solution available, only minor changes each installation

ModPod Insertion into older fields

IFEA – Feb 2012

TVCM Case Study - Upgrading control system infrastructure in 2 fields

First oil : Tordis (1994) Vigdis (1997)

Depth: 200-300 metres

Scope: Tordis 15 SCMs (GE + other OEM)

Vigdis 12 SCMs (GE)

Vigdis

Broad scope solution for Tordis & Vigdis fields

Retrofit of all subsea SCM’s

New electrical distribution system

Replace topside control systems

Addition of new sensors

IFEA – Feb 2012

IFEA – Feb 2012

IFEA – Feb 2012

Greater reliability

Less intervention & diagnostics

checks

Better monitoring

Earlier error detection & prevention

Technology is SmartCenter enabled

Field life extension

Impact of potential obsolescence

Faster issue resolution

SemStar5 … speed & expansion

Processing power

Architecture enables “plug & play”

Strong customer benefits upon project execution

IFEA – Feb 2012

• Leveraging each field’s unique status can produce an optimized sustainability solution

• Implementation risk and deployment timescale can be minimized- by developing a sustainable solution from a suite of proven

units and techniques

……… and finallytechnology insertion for performance reasons can also give a step

change in mitigating obsolescence risk

technology insertion to mitigate obsolescence risk gives the opportunity to improve field performance, enhanced oil recovery and increased availability

Field sustainability - Enhanced performance from bespoke solutions

IFEA – Feb 2012

The adaptor plate between the SCM and XT was easier to implement than expected The same was true for other 3rd party equipment.

Communication routing was a big challenge mainly because Ethernet subsea is a new application. Traffic priority was also demanding and required expert IT expertise to resolve issues.

LCI documentation for existing equipment was a much larger amount of work than planned.

EFAT and SIT were very challenging and required very detailed and rigorous procedures, both for the electrical and mechanical interfaces. This was especially important regarding the interfaces between old and new equipment.

Offshore Installation and commissioning have gone very well mainly due to the conscientious testing and development of the appropriate test equipment and tools.

Experiences

IFEA – Feb 2012

Questions

?