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Levetidsforlengelse av Existerende felt
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Transcript of Levetidsforlengelse av Existerende felt
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Levetidsforlengelse av Existerende felt
Oppgradering av kontrollsystemer subseaErfaringer og losninger fra Tordis og VigdisFebruary 8th 2012
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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
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IFEA – Feb 2012
The Brownfield technology time bomb
Obsolete equipmentComing to end of natural lifeLong repair times, often needing re-engineering
Today
1983
Compared to other industries much shorter expected operational life – affects availability of your equipment
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IFEA – Feb 2012
Enhanced oil recovery from ageing assets
The Brownfield Opportunity
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IFEA – Feb 2012
Improved performance thru technology insertion
AMV PMV
PWVAWVCOV
MPFM
ChokePWV
Sensor
New Loop
BlockedDisabled
MIVSIV
MIV
AMV PMV
PWVAWVCOV
MPFM
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
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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
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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
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IFEA – Feb 2012
TVCM Case Study - Upgrading control system infrastructure in 2 fields
First oil : Tordis (1994) Vigdis (1997)Depth: 200-300 metresScope: Tordis 15 SCMs (GE + other OEM)
Vigdis 12 SCMs (GE)
Vigdis
Broad scope solution for Tordis & Vigdis fieldsRetrofit of all subsea SCM’sNew electrical distribution systemReplace topside control systemsAddition of new sensors
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IFEA – Feb 2012
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IFEA – Feb 2012
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IFEA – Feb 2012
Greater reliabilityLess intervention & diagnostics checks
Better monitoringEarlier error detection & preventionTechnology is SmartCenter enabled
Field life extensionImpact of potential obsolescenceFaster issue resolution
SemStar5 … speed & expansionProcessing powerArchitecture enables “plug & play”
Strong customer benefits upon project execution
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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
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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
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IFEA – Feb 2012
Questions
?