SlideShare una empresa de Scribd logo
1 de 51
Descargar para leer sin conexión
www.lets-global.com
IIW Document XIII-2430r1-12
Specimens sprayed with artificial salt water
Specimens
Specimens
The As-welded corroded specimens exhibited a slight improved
fatigue strength compared to the As-welded non corroded
specimens.
The surface layer with detrimental residual tensile stresses may
be removed by the corrosion process
and/or
Possible stress concentrations such as weld toe notches and
corrosion pits are ‘softened’ by corrosion
The reduction of the compressive layer (induced by the Ultrasonic Peening treatment) due
to corrosion is detrimental to the fatigue life improvement.
Only a improvement factor of 1.6 was observed after 7.5 years of corrosion
Compare real situation to drawings and/or finite element models
A bracket, which had not been taken into account in the FE model had
been installed at the fatigue hot-spot after a crack repair
The original planned extent of Ultrasonic Peening:
Is this extent of treatment sufficient?
Just because something is written in ink does not mean it is true
Just because something is written in ink does not mean it is true
Visual inspection of fatigue hot-
spots is strongly recommended
prior to planning of work.
Difficulties with access can easily
be assessed on site, but can be
hard to predict from a drawing
and/or from a picture.
ASSET INTEGRITY
Is a result of optimizing the combination of:
• understanding of plant or structure criticality
• degradation mechanisms
• appropriate design
• construction
• plant operation
• maintenance
ASSET INTEGRITY MANAGEMENT
Actions to ensure that a critical equipment or
structure is:
– designed
– constructed
– and operated
so that it remains safe and fit-for-purpose
throughout its entire intended life
ASSET INTEGRITY ASSURANCE
is a combination of many factors of
which Risk Based Inspection
is one important component
Is the optimized application of appropriate
inspection methodology to equipment or
structures based on the risk and consequence of
their failure in such a manner as to provide
reliable information on condition and
deterioration rates
RISK BASED INSPECTION
• Helps understanding the current condition
• Provides information about rate of degradation
when baseline data as
– design philosophy
– operating conditions
– maintenance regimes
– other such data
are also known and linked in to the condition
assessments and prediction.
Benefits of Risk Based Inspection
RBI is an evolution from
• prescriptive regulations
• is a method for optimizing the inspection process
• supports good Asset Integrity Management
It relies on knowledge of other factors in order to
design the RBI programme and,
• to interpret the results
• to predict future condition
Designing a RBI System for an FPSO
• define the key stakeholder objectives
• agree on key project issues such as
– data availability
– baselines
– database selection
– database inputs and outputs.
RBI system depends on
• complete and accurate data
• at the set up stage
• throughout the asset life.
• This data includes:
– Line / Vessel Lists
– Material of construction
– Operating temperatures and pressures
– Design temperatures and pressures (if operating values not available)
– Insulation / lining / cladding details
– System criticality information
– Basic fluid composition
– Heat and Material Balance
– Process System Description
– Materials selection basis
– Fabrication drawings, Datasheets etc
– Plus many others
RISKScreeningMatrix
SCREENING
• Screening can be performed at any level such as a
complete facility or process unit, down to multiple
or individual pieces of equipment. It is
recommended to do a good quality risk screening
where data is readily available such as a complete
process line list/vessel list.
• If data is less readily available a risk screening by
system/structural component may be more
appropriate.
Structural Integrity Life Extension
for FPSO
a) b)
d)
c)
a) b)
d)
c)
a) b)
d)
c)
a) b)
d)
c)
a) b)
d)
c)
1 2 3
?
4
Possible number of people in a confined space
- Alternative escape route
- Escape route length
- Company policy
- Not a exact science….
5
A temporary platform is spot-welded
into a bulkhead.
All personnel continuously secured
with Rope Access methods
No extensive testing/safety measure of
the platform itself is necessary before
work can start.
Advantages:
-Quick to set up
-Improves working quality
Drawbacks:
-Hot-work
malcolm.hedmar@lets-global.com
LETS Global Ultrasonic Peening
Procedure
Lloyd’s Approval
- Fatigue hot-spots found in four FPSO cargotanks
- Bulkhead and bracket welds treated by UP rope access team
- January 2011 to February 2012
malcolm.hedmar@lets-global.com
Transverse cargo tank bracket; 6 hours required
Ultrasonic Peening treated area;
- 300mm on each side of bracket
Transverse cargo tank bracket
Bulkhead connection; 8 hours required
Scenario
Fatigue hot-spot located in cargo oil tank
Weld improvement method; Ultrasonic Peening
12m
-Quick to install
-Good access to fatigue hot-spot
-Equipment can rest on platform
Fatigue hot-spot
Drawings recieved from client;
Planned extent of Ultrasonic Peening
Offshore Rig Life Extension
Offshore Rig Life Extension

Más contenido relacionado

La actualidad más candente

IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...
IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...
IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...IRJET Journal
 
Design and Analysis of Compressor Impeller using AL25ZN Material
Design and Analysis of Compressor Impeller using AL25ZN MaterialDesign and Analysis of Compressor Impeller using AL25ZN Material
Design and Analysis of Compressor Impeller using AL25ZN MaterialIRJET Journal
 
Rop services i
Rop services iRop services i
Rop services ilylegreen
 
Challenges of Pipe & Tube Testing
Challenges of Pipe & Tube TestingChallenges of Pipe & Tube Testing
Challenges of Pipe & Tube TestingInstron
 
Remaining Life Assessment of Radiant Super Heater in Creep Regime
Remaining Life Assessment of Radiant Super Heater in Creep RegimeRemaining Life Assessment of Radiant Super Heater in Creep Regime
Remaining Life Assessment of Radiant Super Heater in Creep RegimeIRJET Journal
 
Coke drum applications Claudio Allevato
Coke drum applications Claudio AllevatoCoke drum applications Claudio Allevato
Coke drum applications Claudio AllevatoMinacore
 
Condition monitoring of_steam_turbines_by_performa
Condition monitoring of_steam_turbines_by_performaCondition monitoring of_steam_turbines_by_performa
Condition monitoring of_steam_turbines_by_performaUdhayakumar Venkataraman
 
The Engineering World Of Thermoplastic Piping
The Engineering World Of Thermoplastic PipingThe Engineering World Of Thermoplastic Piping
The Engineering World Of Thermoplastic Pipingblenrayaust
 
Weld qualification
Weld qualificationWeld qualification
Weld qualificationmnrao62
 
Composites on the Move: The Need for Dynamic Testing
Composites on the Move: The Need for Dynamic Testing Composites on the Move: The Need for Dynamic Testing
Composites on the Move: The Need for Dynamic Testing Instron
 
Engineering & Piping design
Engineering & Piping designEngineering & Piping design
Engineering & Piping designMusa Sabri
 
Min ambient temp considerations
Min ambient temp considerationsMin ambient temp considerations
Min ambient temp considerationsRajendra Chakole
 
Tire Testing Applications & Solutions
Tire Testing Applications & SolutionsTire Testing Applications & Solutions
Tire Testing Applications & SolutionsInstron
 
In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...
In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...
In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...Britt Bettell
 

La actualidad más candente (18)

IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...
IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...
IRJET- Finite Element Analysis of Stempipe Used in Deepwater Pipeline Install...
 
Design and Analysis of Compressor Impeller using AL25ZN Material
Design and Analysis of Compressor Impeller using AL25ZN MaterialDesign and Analysis of Compressor Impeller using AL25ZN Material
Design and Analysis of Compressor Impeller using AL25ZN Material
 
Rop services i
Rop services iRop services i
Rop services i
 
Challenges of Pipe & Tube Testing
Challenges of Pipe & Tube TestingChallenges of Pipe & Tube Testing
Challenges of Pipe & Tube Testing
 
Remaining Life Assessment of Radiant Super Heater in Creep Regime
Remaining Life Assessment of Radiant Super Heater in Creep RegimeRemaining Life Assessment of Radiant Super Heater in Creep Regime
Remaining Life Assessment of Radiant Super Heater in Creep Regime
 
Coke drum applications Claudio Allevato
Coke drum applications Claudio AllevatoCoke drum applications Claudio Allevato
Coke drum applications Claudio Allevato
 
Condition monitoring of_steam_turbines_by_performa
Condition monitoring of_steam_turbines_by_performaCondition monitoring of_steam_turbines_by_performa
Condition monitoring of_steam_turbines_by_performa
 
The Engineering World Of Thermoplastic Piping
The Engineering World Of Thermoplastic PipingThe Engineering World Of Thermoplastic Piping
The Engineering World Of Thermoplastic Piping
 
Weld qualification
Weld qualificationWeld qualification
Weld qualification
 
Well test procedures manual
Well test procedures manualWell test procedures manual
Well test procedures manual
 
Composites on the Move: The Need for Dynamic Testing
Composites on the Move: The Need for Dynamic Testing Composites on the Move: The Need for Dynamic Testing
Composites on the Move: The Need for Dynamic Testing
 
Engineering & Piping design
Engineering & Piping designEngineering & Piping design
Engineering & Piping design
 
Engineering and Design Webinar - September
Engineering and Design Webinar - SeptemberEngineering and Design Webinar - September
Engineering and Design Webinar - September
 
Min ambient temp considerations
Min ambient temp considerationsMin ambient temp considerations
Min ambient temp considerations
 
Asme sec viii div 1 icb
Asme sec viii div 1 icbAsme sec viii div 1 icb
Asme sec viii div 1 icb
 
Sspc pa 2-2012
Sspc pa 2-2012Sspc pa 2-2012
Sspc pa 2-2012
 
Tire Testing Applications & Solutions
Tire Testing Applications & SolutionsTire Testing Applications & Solutions
Tire Testing Applications & Solutions
 
In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...
In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...
In-Place Pipe Support Load Testing and Hanger Surveys_Part of a Best in Class...
 

Destacado

Development of Guidelines and Standards for Life Extension
Development of Guidelines and Standards for Life ExtensionDevelopment of Guidelines and Standards for Life Extension
Development of Guidelines and Standards for Life ExtensionE.ON Exploration & Production
 
Wood Group - A Holistic Approach to Life Extension
Wood Group - A Holistic Approach to Life ExtensionWood Group - A Holistic Approach to Life Extension
Wood Group - A Holistic Approach to Life ExtensionTravis Cummins
 
FPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated Contracts
FPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated ContractsFPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated Contracts
FPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated ContractsDavid Seah
 
Abo Oml125
Abo Oml125Abo Oml125
Abo Oml125ennioeni
 
Fpso – general overview of conversion & topside process description -abstract
Fpso – general overview of conversion & topside process description -abstractFpso – general overview of conversion & topside process description -abstract
Fpso – general overview of conversion & topside process description -abstractAnoop Rajendran Nair
 
Offshore platform slot recovery process
Offshore platform slot recovery processOffshore platform slot recovery process
Offshore platform slot recovery processKamel Elsayed
 
FPSO Redeployment
FPSO RedeploymentFPSO Redeployment
FPSO RedeploymentDan Benson
 
Life extension of aging petroleum production facilities offshore
Life extension of aging petroleum production facilities offshoreLife extension of aging petroleum production facilities offshore
Life extension of aging petroleum production facilities offshoreE.ON Exploration & Production
 
Design and Analysis of Floating Production Systems
Design and Analysis of Floating Production Systems Design and Analysis of Floating Production Systems
Design and Analysis of Floating Production Systems Engineers Australia
 
Norsok standards for oil and gas
Norsok standards for oil and gasNorsok standards for oil and gas
Norsok standards for oil and gasmarco garofanello
 
0020 introduction to fpso design
0020 introduction to fpso design0020 introduction to fpso design
0020 introduction to fpso designChieu Nguyen
 

Destacado (14)

apl-brochure
apl-brochureapl-brochure
apl-brochure
 
Development of Guidelines and Standards for Life Extension
Development of Guidelines and Standards for Life ExtensionDevelopment of Guidelines and Standards for Life Extension
Development of Guidelines and Standards for Life Extension
 
Wood Group - A Holistic Approach to Life Extension
Wood Group - A Holistic Approach to Life ExtensionWood Group - A Holistic Approach to Life Extension
Wood Group - A Holistic Approach to Life Extension
 
FPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated Contracts
FPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated ContractsFPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated Contracts
FPSO Conference Workshop - Legal Risks in FPSO Conversion & Associated Contracts
 
Abo Oml125
Abo Oml125Abo Oml125
Abo Oml125
 
Fpso – general overview of conversion & topside process description -abstract
Fpso – general overview of conversion & topside process description -abstractFpso – general overview of conversion & topside process description -abstract
Fpso – general overview of conversion & topside process description -abstract
 
Offshore platform slot recovery process
Offshore platform slot recovery processOffshore platform slot recovery process
Offshore platform slot recovery process
 
FPSO Redeployment
FPSO RedeploymentFPSO Redeployment
FPSO Redeployment
 
FPSO Requirements
FPSO RequirementsFPSO Requirements
FPSO Requirements
 
Life extension of aging petroleum production facilities offshore
Life extension of aging petroleum production facilities offshoreLife extension of aging petroleum production facilities offshore
Life extension of aging petroleum production facilities offshore
 
Design and Analysis of Floating Production Systems
Design and Analysis of Floating Production Systems Design and Analysis of Floating Production Systems
Design and Analysis of Floating Production Systems
 
Floting Production Storage and Offloading
Floting Production Storage  and OffloadingFloting Production Storage  and Offloading
Floting Production Storage and Offloading
 
Norsok standards for oil and gas
Norsok standards for oil and gasNorsok standards for oil and gas
Norsok standards for oil and gas
 
0020 introduction to fpso design
0020 introduction to fpso design0020 introduction to fpso design
0020 introduction to fpso design
 

Similar a Offshore Rig Life Extension

Asset Integrity Management for purpose-built FPSOs and subsea system facilities
Asset Integrity Management for purpose-built FPSOs and subsea system facilitiesAsset Integrity Management for purpose-built FPSOs and subsea system facilities
Asset Integrity Management for purpose-built FPSOs and subsea system facilitiesAdvisian
 
Innovation day 2013 2.5 joris vanderschrick (verhaert) - embedded system de...
Innovation day 2013   2.5 joris vanderschrick (verhaert) - embedded system de...Innovation day 2013   2.5 joris vanderschrick (verhaert) - embedded system de...
Innovation day 2013 2.5 joris vanderschrick (verhaert) - embedded system de...Verhaert Masters in Innovation
 
SPE 171517_Estimating Probability of Failure _2014_Final
SPE 171517_Estimating Probability of Failure _2014_FinalSPE 171517_Estimating Probability of Failure _2014_Final
SPE 171517_Estimating Probability of Failure _2014_FinalKatrina Carter-Journet
 
1 - Introduction to Computerized Systems Validation - for review.pptx
1 - Introduction to Computerized Systems Validation - for review.pptx1 - Introduction to Computerized Systems Validation - for review.pptx
1 - Introduction to Computerized Systems Validation - for review.pptxpatemalabanan
 
PE230516_Flowserve_WC_presentation_FINAL.pdf
PE230516_Flowserve_WC_presentation_FINAL.pdfPE230516_Flowserve_WC_presentation_FINAL.pdf
PE230516_Flowserve_WC_presentation_FINAL.pdfClaudiomarConceioCos
 
WCM_PRESENTATION_Flange_Management_Rev4
WCM_PRESENTATION_Flange_Management_Rev4WCM_PRESENTATION_Flange_Management_Rev4
WCM_PRESENTATION_Flange_Management_Rev4Afiman Abdul Rahman
 
Unit v11 proactive maintenance analysis
Unit v11 proactive maintenance analysisUnit v11 proactive maintenance analysis
Unit v11 proactive maintenance analysisCharlton Inao
 
Corrosion Management
Corrosion ManagementCorrosion Management
Corrosion Managementaccenture
 
Product assurance
Product assurance Product assurance
Product assurance PriyankaKg4
 
ADEPP & Other Software
ADEPP & Other SoftwareADEPP & Other Software
ADEPP & Other SoftwareFabienne Salimi
 
Application_of_risk-based_inspection_for_cryogenic_equipment.pptx
Application_of_risk-based_inspection_for_cryogenic_equipment.pptxApplication_of_risk-based_inspection_for_cryogenic_equipment.pptx
Application_of_risk-based_inspection_for_cryogenic_equipment.pptxRami115012
 
Flow assurance and surge analysis
Flow assurance and surge analysisFlow assurance and surge analysis
Flow assurance and surge analysisJohn Kingsley
 
Stork Presentation on Migration (Willem Hazenberg)
Stork Presentation on Migration (Willem Hazenberg)Stork Presentation on Migration (Willem Hazenberg)
Stork Presentation on Migration (Willem Hazenberg)ARC Advisory Group
 
Inspecta OTD presentation
Inspecta OTD presentation Inspecta OTD presentation
Inspecta OTD presentation inacatrine
 

Similar a Offshore Rig Life Extension (20)

Asset Integrity Management for purpose-built FPSOs and subsea system facilities
Asset Integrity Management for purpose-built FPSOs and subsea system facilitiesAsset Integrity Management for purpose-built FPSOs and subsea system facilities
Asset Integrity Management for purpose-built FPSOs and subsea system facilities
 
Innovation day 2013 2.5 joris vanderschrick (verhaert) - embedded system de...
Innovation day 2013   2.5 joris vanderschrick (verhaert) - embedded system de...Innovation day 2013   2.5 joris vanderschrick (verhaert) - embedded system de...
Innovation day 2013 2.5 joris vanderschrick (verhaert) - embedded system de...
 
SPE 171517_Estimating Probability of Failure _2014_Final
SPE 171517_Estimating Probability of Failure _2014_FinalSPE 171517_Estimating Probability of Failure _2014_Final
SPE 171517_Estimating Probability of Failure _2014_Final
 
Integrating Laser Scan Data into FEA Model to Perform Level 3 FFS
Integrating Laser Scan Data into FEA Model to Perform Level 3 FFSIntegrating Laser Scan Data into FEA Model to Perform Level 3 FFS
Integrating Laser Scan Data into FEA Model to Perform Level 3 FFS
 
1 - Introduction to Computerized Systems Validation - for review.pptx
1 - Introduction to Computerized Systems Validation - for review.pptx1 - Introduction to Computerized Systems Validation - for review.pptx
1 - Introduction to Computerized Systems Validation - for review.pptx
 
Ray-Goodfellow.ppt
Ray-Goodfellow.pptRay-Goodfellow.ppt
Ray-Goodfellow.ppt
 
PE230516_Flowserve_WC_presentation_FINAL.pdf
PE230516_Flowserve_WC_presentation_FINAL.pdfPE230516_Flowserve_WC_presentation_FINAL.pdf
PE230516_Flowserve_WC_presentation_FINAL.pdf
 
WCM_PRESENTATION_Flange_Management_Rev4
WCM_PRESENTATION_Flange_Management_Rev4WCM_PRESENTATION_Flange_Management_Rev4
WCM_PRESENTATION_Flange_Management_Rev4
 
Unit v11 proactive maintenance analysis
Unit v11 proactive maintenance analysisUnit v11 proactive maintenance analysis
Unit v11 proactive maintenance analysis
 
Corrosion Management
Corrosion ManagementCorrosion Management
Corrosion Management
 
Product assurance
Product assurance Product assurance
Product assurance
 
Maintainability engineering
Maintainability engineeringMaintainability engineering
Maintainability engineering
 
ADEPP & Other Software
ADEPP & Other SoftwareADEPP & Other Software
ADEPP & Other Software
 
Application_of_risk-based_inspection_for_cryogenic_equipment.pptx
Application_of_risk-based_inspection_for_cryogenic_equipment.pptxApplication_of_risk-based_inspection_for_cryogenic_equipment.pptx
Application_of_risk-based_inspection_for_cryogenic_equipment.pptx
 
Poster
PosterPoster
Poster
 
Flow assurance and surge analysis
Flow assurance and surge analysisFlow assurance and surge analysis
Flow assurance and surge analysis
 
Stork Presentation on Migration (Willem Hazenberg)
Stork Presentation on Migration (Willem Hazenberg)Stork Presentation on Migration (Willem Hazenberg)
Stork Presentation on Migration (Willem Hazenberg)
 
Rbi final report
Rbi final reportRbi final report
Rbi final report
 
Inspecta OTD presentation
Inspecta OTD presentation Inspecta OTD presentation
Inspecta OTD presentation
 
Rbi
RbiRbi
Rbi
 

Último

KubeKraft presentation @CloudNativeHooghly
KubeKraft presentation @CloudNativeHooghlyKubeKraft presentation @CloudNativeHooghly
KubeKraft presentation @CloudNativeHooghlysanyuktamishra911
 
Booking open Available Pune Call Girls Pargaon 6297143586 Call Hot Indian Gi...
Booking open Available Pune Call Girls Pargaon  6297143586 Call Hot Indian Gi...Booking open Available Pune Call Girls Pargaon  6297143586 Call Hot Indian Gi...
Booking open Available Pune Call Girls Pargaon 6297143586 Call Hot Indian Gi...Call Girls in Nagpur High Profile
 
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdfONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdfKamal Acharya
 
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete RecordCCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete RecordAsst.prof M.Gokilavani
 
The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...
The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...
The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...ranjana rawat
 
UNIT-III FMM. DIMENSIONAL ANALYSIS
UNIT-III FMM.        DIMENSIONAL ANALYSISUNIT-III FMM.        DIMENSIONAL ANALYSIS
UNIT-III FMM. DIMENSIONAL ANALYSISrknatarajan
 
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELLPVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELLManishPatel169454
 
BSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptx
BSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptxBSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptx
BSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptxfenichawla
 
chapter 5.pptx: drainage and irrigation engineering
chapter 5.pptx: drainage and irrigation engineeringchapter 5.pptx: drainage and irrigation engineering
chapter 5.pptx: drainage and irrigation engineeringmulugeta48
 
Vivazz, Mieres Social Housing Design Spain
Vivazz, Mieres Social Housing Design SpainVivazz, Mieres Social Housing Design Spain
Vivazz, Mieres Social Housing Design Spaintimesproduction05
 
Intze Overhead Water Tank Design by Working Stress - IS Method.pdf
Intze Overhead Water Tank  Design by Working Stress - IS Method.pdfIntze Overhead Water Tank  Design by Working Stress - IS Method.pdf
Intze Overhead Water Tank Design by Working Stress - IS Method.pdfSuman Jyoti
 
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...ranjana rawat
 
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 BookingVIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Bookingdharasingh5698
 
result management system report for college project
result management system report for college projectresult management system report for college project
result management system report for college projectTonystark477637
 

Último (20)

KubeKraft presentation @CloudNativeHooghly
KubeKraft presentation @CloudNativeHooghlyKubeKraft presentation @CloudNativeHooghly
KubeKraft presentation @CloudNativeHooghly
 
Booking open Available Pune Call Girls Pargaon 6297143586 Call Hot Indian Gi...
Booking open Available Pune Call Girls Pargaon  6297143586 Call Hot Indian Gi...Booking open Available Pune Call Girls Pargaon  6297143586 Call Hot Indian Gi...
Booking open Available Pune Call Girls Pargaon 6297143586 Call Hot Indian Gi...
 
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdfONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
 
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete RecordCCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
 
Roadmap to Membership of RICS - Pathways and Routes
Roadmap to Membership of RICS - Pathways and RoutesRoadmap to Membership of RICS - Pathways and Routes
Roadmap to Membership of RICS - Pathways and Routes
 
The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...
The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...
The Most Attractive Pune Call Girls Budhwar Peth 8250192130 Will You Miss Thi...
 
Call Girls in Ramesh Nagar Delhi 💯 Call Us 🔝9953056974 🔝 Escort Service
Call Girls in Ramesh Nagar Delhi 💯 Call Us 🔝9953056974 🔝 Escort ServiceCall Girls in Ramesh Nagar Delhi 💯 Call Us 🔝9953056974 🔝 Escort Service
Call Girls in Ramesh Nagar Delhi 💯 Call Us 🔝9953056974 🔝 Escort Service
 
NFPA 5000 2024 standard .
NFPA 5000 2024 standard                                  .NFPA 5000 2024 standard                                  .
NFPA 5000 2024 standard .
 
UNIT-III FMM. DIMENSIONAL ANALYSIS
UNIT-III FMM.        DIMENSIONAL ANALYSISUNIT-III FMM.        DIMENSIONAL ANALYSIS
UNIT-III FMM. DIMENSIONAL ANALYSIS
 
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELLPVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
 
BSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptx
BSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptxBSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptx
BSides Seattle 2024 - Stopping Ethan Hunt From Taking Your Data.pptx
 
chapter 5.pptx: drainage and irrigation engineering
chapter 5.pptx: drainage and irrigation engineeringchapter 5.pptx: drainage and irrigation engineering
chapter 5.pptx: drainage and irrigation engineering
 
Vivazz, Mieres Social Housing Design Spain
Vivazz, Mieres Social Housing Design SpainVivazz, Mieres Social Housing Design Spain
Vivazz, Mieres Social Housing Design Spain
 
Intze Overhead Water Tank Design by Working Stress - IS Method.pdf
Intze Overhead Water Tank  Design by Working Stress - IS Method.pdfIntze Overhead Water Tank  Design by Working Stress - IS Method.pdf
Intze Overhead Water Tank Design by Working Stress - IS Method.pdf
 
(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7
(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7
(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7
 
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
 
(INDIRA) Call Girl Meerut Call Now 8617697112 Meerut Escorts 24x7
(INDIRA) Call Girl Meerut Call Now 8617697112 Meerut Escorts 24x7(INDIRA) Call Girl Meerut Call Now 8617697112 Meerut Escorts 24x7
(INDIRA) Call Girl Meerut Call Now 8617697112 Meerut Escorts 24x7
 
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 BookingVIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
 
result management system report for college project
result management system report for college projectresult management system report for college project
result management system report for college project
 
Call Now ≽ 9953056974 ≼🔝 Call Girls In New Ashok Nagar ≼🔝 Delhi door step de...
Call Now ≽ 9953056974 ≼🔝 Call Girls In New Ashok Nagar  ≼🔝 Delhi door step de...Call Now ≽ 9953056974 ≼🔝 Call Girls In New Ashok Nagar  ≼🔝 Delhi door step de...
Call Now ≽ 9953056974 ≼🔝 Call Girls In New Ashok Nagar ≼🔝 Delhi door step de...
 

Offshore Rig Life Extension

  • 1.
  • 2.
  • 5. Specimens sprayed with artificial salt water Specimens
  • 7. The As-welded corroded specimens exhibited a slight improved fatigue strength compared to the As-welded non corroded specimens.
  • 8. The surface layer with detrimental residual tensile stresses may be removed by the corrosion process and/or Possible stress concentrations such as weld toe notches and corrosion pits are ‘softened’ by corrosion
  • 9. The reduction of the compressive layer (induced by the Ultrasonic Peening treatment) due to corrosion is detrimental to the fatigue life improvement. Only a improvement factor of 1.6 was observed after 7.5 years of corrosion
  • 10. Compare real situation to drawings and/or finite element models
  • 11.
  • 12. A bracket, which had not been taken into account in the FE model had been installed at the fatigue hot-spot after a crack repair The original planned extent of Ultrasonic Peening: Is this extent of treatment sufficient?
  • 13. Just because something is written in ink does not mean it is true
  • 14. Just because something is written in ink does not mean it is true
  • 15.
  • 16.
  • 17.
  • 18. Visual inspection of fatigue hot- spots is strongly recommended prior to planning of work. Difficulties with access can easily be assessed on site, but can be hard to predict from a drawing and/or from a picture.
  • 19. ASSET INTEGRITY Is a result of optimizing the combination of: • understanding of plant or structure criticality • degradation mechanisms • appropriate design • construction • plant operation • maintenance
  • 20. ASSET INTEGRITY MANAGEMENT Actions to ensure that a critical equipment or structure is: – designed – constructed – and operated so that it remains safe and fit-for-purpose throughout its entire intended life
  • 21. ASSET INTEGRITY ASSURANCE is a combination of many factors of which Risk Based Inspection is one important component
  • 22. Is the optimized application of appropriate inspection methodology to equipment or structures based on the risk and consequence of their failure in such a manner as to provide reliable information on condition and deterioration rates RISK BASED INSPECTION
  • 23. • Helps understanding the current condition • Provides information about rate of degradation when baseline data as – design philosophy – operating conditions – maintenance regimes – other such data are also known and linked in to the condition assessments and prediction. Benefits of Risk Based Inspection
  • 24. RBI is an evolution from • prescriptive regulations • is a method for optimizing the inspection process • supports good Asset Integrity Management It relies on knowledge of other factors in order to design the RBI programme and, • to interpret the results • to predict future condition
  • 25. Designing a RBI System for an FPSO • define the key stakeholder objectives • agree on key project issues such as – data availability – baselines – database selection – database inputs and outputs.
  • 26. RBI system depends on • complete and accurate data • at the set up stage • throughout the asset life. • This data includes: – Line / Vessel Lists – Material of construction – Operating temperatures and pressures – Design temperatures and pressures (if operating values not available) – Insulation / lining / cladding details – System criticality information – Basic fluid composition – Heat and Material Balance – Process System Description – Materials selection basis – Fabrication drawings, Datasheets etc – Plus many others
  • 28. SCREENING • Screening can be performed at any level such as a complete facility or process unit, down to multiple or individual pieces of equipment. It is recommended to do a good quality risk screening where data is readily available such as a complete process line list/vessel list. • If data is less readily available a risk screening by system/structural component may be more appropriate.
  • 29. Structural Integrity Life Extension for FPSO
  • 35. 1 2 3 ? 4 Possible number of people in a confined space - Alternative escape route - Escape route length - Company policy - Not a exact science…. 5
  • 36.
  • 37.
  • 38. A temporary platform is spot-welded into a bulkhead. All personnel continuously secured with Rope Access methods No extensive testing/safety measure of the platform itself is necessary before work can start. Advantages: -Quick to set up -Improves working quality Drawbacks: -Hot-work
  • 39.
  • 40. malcolm.hedmar@lets-global.com LETS Global Ultrasonic Peening Procedure Lloyd’s Approval
  • 41. - Fatigue hot-spots found in four FPSO cargotanks - Bulkhead and bracket welds treated by UP rope access team - January 2011 to February 2012 malcolm.hedmar@lets-global.com
  • 42. Transverse cargo tank bracket; 6 hours required Ultrasonic Peening treated area; - 300mm on each side of bracket
  • 44. Bulkhead connection; 8 hours required
  • 45. Scenario Fatigue hot-spot located in cargo oil tank Weld improvement method; Ultrasonic Peening
  • 46. 12m
  • 47. -Quick to install -Good access to fatigue hot-spot -Equipment can rest on platform
  • 49. Drawings recieved from client; Planned extent of Ultrasonic Peening