(Technip) Riser Integrity Management
Transcript of (Technip) Riser Integrity Management
Riser IntegrityManagementHSE Flexible Pipe Integrity Forum
November, 2008, Aberdeen
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ConclusionsV_Monitoring TechnologiesIV_Example of RIM System: DaliaIII_Main Interfaces for RIMII_
_ IntroductionIContents
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ConclusionsV_Monitoring TechnologiesIV_Example of RIM System: DaliaIII_Main Interfaces for RIMII_
_ IntroductionIContents
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ConclusionsV_Monitoring TechnologiesIV_Example of RIM System: DaliaIII_Main Interfaces for RIMII_
_ IntroductionIContents
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Main Steps of Riser Integrity Management
Task 1 Task 2 Task 3 Task 4
Study Basis ofDesign
Inspection &MonitoringProgrammeDefinition
Inspection &MonitoringProgrammeExecution
Post-processingof riser data and
conclusionsabout riser
integrity
Programme Preparation Onshore Offshore Operations IM Post-ProcessingOnshore
Year N +1
First Year
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Main Interfaces1 -Order and Specify Riser
2 –Design, Manuf, Install RiserIntegrate Monitoring hardware
3 – Failure Mode AnalysisProvide data
4 – Define RIM programme
5 – Monitoring Hard and softwaredata Aquisition, process…
Data management, Interpretation - 7
Integrity Assessment - 8
9 – Act, Decide
Operator
Riser Manuf-Installer
RIM Service Provider
H&S provider
6 – Provide Additional data
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ResponsibilitiesOperator� Specify
� Provide AdditionalData from System
� Act on Results
� ImplementRecommendations
Riser Manufacturer/ Installer
� Provide RelevantInfo� Design� Manufacturing� Installation� Commissioning
� Integrate hardwarein Riser
� FMA
� IntegrityAssessment
� MakeRecommendations
RIM ServiceProvider
� Establish RIMProgramme
� CoordinateActivities
� Manage,Analyze data
� Interpret Data
H&S Provider
� ProvideHardware,Software
� Install itOffshore
� Service andMaintain
� Data Transfer,Analysis
Task 1&
Task 2
Task 3
Task 4
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ConclusionsV_Monitoring TechnologiesIV_Example of RIM System: DaliaIII_Main Interfaces for RIMII_
_ IntroductionIContents
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Dalia – RIM SCOPE► What: Monitoring, testing & inspection of 8 IPB risers, 2 GI & 4 WI risers► Where: On Dalia flexible risers –► How long: During the entire field life► How: Annual review of data & yearly follow-up report delivered to the
Client + Annual optimization and adjustments of the schedule + regulargeneral interaction with asset
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Involved Parties► Operator : Total
► RIM Service Provider : Genesis (Technip)
► Riser Manufacturer & Installer: TechnipFrance / Flexifrance
► H&S Providers:• Schlumberger: DTS system inspection & maintenance• Force Technology: Vent Gas Monitoring system maintenance
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Dalia RIM: Services Overview
Operating ConditionsSurveillance
� P,T enveloppe� Peaks & shut-down� DTS
External IntegritySurveillance
� ROV & visual insp� DTSRiser Mechanical &
Plastic Ageing� Vent gas analysis� Polymer coupon� Plastic ageing analysis�Fatigue analysis
Annulus IntegrityMonitoring
� Vacuum tests� Vent system check-up� Peaks & Shut-down
Insp. & Maint. OfMonitoring System
� VGM� DTS�…
Riser IM
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2008 Programme Review► Inspection & maintenance on FPSO:
• DTS system: Completed by Schlumberger• Vacuum tests & topsides inspections by Flexifrance:• VGM system maintenance : Force Technology
► Vent gas analysis: Performed in June 2008 – Conclusions issued in theYearly Report
► Yearly Report: To be issued in December 2008 / January 2009► Key points:
• Importance of strong relationships between key players (knowledgetransfer, access to in-house experts)
• Initiate early discussion• Data gathering is key
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ConclusionsV_Monitoring TechnologiesIV_Example of RIM System: DaliaIII_Main Interfaces for RIMII_
_ IntroductionIContents
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Flooded Annulus Detection� Perform regular inspections to detect possible water ingress
� vacuum test� N2 Gas injection and control of the injected volume
� Perform regular subsea examination
� Gas venting monitoring device� Measure any sudden increase in the gas flowrate� Presence of water at the venting ports
� Implement PIM (pipe integrity management)� P & T° history� Fluid history� Annulus history
Annulus vent ratemonitor
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Average 3 Kanal 108Average 5 Kanal 108Tid Kanal 108
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Temperature Monitoring: DTS (1/2)� Distributed Temperature Sensing (DTS) technology :
� ‘Raman Reflectometry’ (OTDR, analysis of back-scattered light)� Continuous temperature profiles along each fibre with a resolution of 1m and very
good accuracy (+/- 0.5°C) and resolution about 0.1°C� Integration in the Flexible Pipe Manufacturing process:
– SS tubes integrated in Flexible Pipe Manufacture (Armour layer or bundle)– Optical fibre inserted inside SS tubes
SS tubes
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� Good Sensitivity of system
� Calibration of model to forecast temperature in different elements ofPipe.
� Applications� Flow Assurance� Annulus Flooding
Temperature Monitoring: DTS (2/2)
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Curvature Sensor� ‘subC Rods’ : based on Optical Fibre FBG sensors
� GRP rod with 4 optical fibres� Sensors at about 1m (or less) intervals
� Integration in Bend Stiffener� 4 moulded voids included in design
� Calibration of System� Solutions have been developed
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Acoustic Emission of wire Rupture� Used on Full Scale test Several times
� 2002 Tensile test on the traction bench in LeTrait� 2007 Corrosion Fatigue test
� Additional work ongoing to qualify for Offshore use.
� Calibration, fixation and location on flexible pipe needs closecollaboration
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ConclusionsV_Monitoring TechnologiesIV_Example of RIM System: DaliaIII_Main Interfaces for RIMII_
_ IntroductionIContents
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CONCLUSIONS� Complex process
� Many players� Many interfaces
� Technip view:� Integrate under Company an Overall Service
– To add value to the process– To deliver asset life expectations
� Each player needs to fulfill its role� Flexible Manufacturer (in particular access to in-house expertise)� Monitoring Hardware/Software Supplier� RIM Service Provider (at start and during lifetime - importance of
historical events recording)� Operator