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www.pulse-monitoring.com
The Use of Real Time
Monitoring to Extend the
Operating Life of Offshore
Platforms
OMAE | June 20...
www.pulse-monitoring.com
• Introduction
• Challenges
• Why Monitor?
• Monitoring Technologies
• Case Study: Valemon
– Proj...
www.pulse-monitoring.com
Platform Age: A Visual Representation
Introduction
Estimates
www.pulse-monitoring.com
Challenges
Offshore Platforms
Design | Environment | Fatigue | Corrosion | Impacts
www.pulse-monitoring.com
Operating Past Design Life
• Asset life extension being
driven by:
– Technological Advancements
–...
www.pulse-monitoring.com
Why are Clients Monitoring?
• Extending operating life
• Structural Integrity (Storm Events)
• Op...
www.pulse-monitoring.com
Reliability Engineering Life Cycle
Why Monitor?
Useful Life
Monitoring
Investment
Monitoring
ROI
...
www.pulse-monitoring.com
Monitoring Technologies
Equipment Used
Accelerometers
Inclinometers
Strain Gauges Environmental
(...
www.pulse-monitoring.com
Monitoring Technologies
Software and Data Management
www.pulse-monitoring.com
Monitoring Technologies
Data Processing and Reporting
• Spectrum of the motion data (Acceleration...
www.pulse-monitoring.com
Valemon Jacket Monitoring
• Location: Norwegian North
Sea
• Water Depth: 135m
• Valemon jacket
– ...
www.pulse-monitoring.com
Valemon Jacket Monitoring
• Monitor pre-drilling phase:
– Monitor deflections of jacket and
jacku...
www.pulse-monitoring.com
Monitoring system
Valemon Jacket Monitoring
www.pulse-monitoring.com
Valemon Jacket Monitoring
• 3 axis precision
accelerometers
• Installed in Eexd- rated
housings
•...
www.pulse-monitoring.com
Valemon Jacket Monitoring
Strain sticks
• Strain sticks installed in 4
locations
• Measuring curv...
www.pulse-monitoring.com
Valemon Jacket Monitoring
Environmental sensors
• Air-gap wave radar installed
• Measuring wave h...
www.pulse-monitoring.com
Valemon Jacket Monitoring
Jackup Data – Displacement
www.pulse-monitoring.com
Valemon Jacket Monitoring
Jacket Data – Displacement
www.pulse-monitoring.com
Valemon Jacket Monitoring
Data – Valemon Jacket Motion / Wave Height
0.00
0.05
0.10
0.15
0.20
0.2...
www.pulse-monitoring.com
Valemon Jacket Monitoring
Data - Jacket Motion Fatigue
0
2
4
6
8
10
12
14
1.0E-10
1.0E-08
1.0E-06...
www.pulse-monitoring.com
Valemon Jacket Monitoring
• Monitoring system’s demonstrated responses of critical equipment
rema...
www.pulse-monitoring.com
• Platform monitoring is integral
to the IM Strategy of offshore
platforms
• Online Monitoring is...
www.pulse-monitoring.com
More Info
• Visit www.pulse-monitoring.com
• Or email: info@pulse-monitoring.com
www.pulse-monitoring.com
References
• Use of Real Time Integrity Monitoring on Valemon Jacket During
Drilling Operations, ...
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OMAE Real Time Monitoring to Extend Operating Life of Offshore Platforms

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Presented at OMAE San Francisco in 2014 by Paul Chittenden, this presentation shows how oil and gas operators are using real-time monitoring to extend the life of their production platforms.

Operators are using Pulse's monitoring technologies for some of the following:

• Extending operating life
• Structural Integrity (Storm Events)
• Optimising inspection programs
• Early warning systems (Structural or Foundational)
• Assessing Repairs
• Increasing deck mass
• Adding conductors / risers
• Collision detection
• Design verification (New Installations)

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OMAE Real Time Monitoring to Extend Operating Life of Offshore Platforms

  1. 1. www.pulse-monitoring.com The Use of Real Time Monitoring to Extend the Operating Life of Offshore Platforms OMAE | June 2014
  2. 2. www.pulse-monitoring.com • Introduction • Challenges • Why Monitor? • Monitoring Technologies • Case Study: Valemon – Project Overview – Client Objectives – Monitoring System – Data and Results • Conclusion Agenda
  3. 3. www.pulse-monitoring.com Platform Age: A Visual Representation Introduction Estimates
  4. 4. www.pulse-monitoring.com Challenges Offshore Platforms Design | Environment | Fatigue | Corrosion | Impacts
  5. 5. www.pulse-monitoring.com Operating Past Design Life • Asset life extension being driven by: – Technological Advancements – High price of oil – Increasing use of subsea tiebacks – Operator focus on cutting costs Why?
  6. 6. www.pulse-monitoring.com Why are Clients Monitoring? • Extending operating life • Structural Integrity (Storm Events) • Optimising inspection programs • Early warning systems (Structural or Foundational) • Assessing Repairs • Increasing deck mass • Adding conductors / risers • Collision detection • Design verification (New Installations)
  7. 7. www.pulse-monitoring.com Reliability Engineering Life Cycle Why Monitor? Useful Life Monitoring Investment Monitoring ROI Service Life (Years) FatigueRate $Saved Design Verification Assumed Design Life
  8. 8. www.pulse-monitoring.com Monitoring Technologies Equipment Used Accelerometers Inclinometers Strain Gauges Environmental (Wave Radar & ADCP)
  9. 9. www.pulse-monitoring.com Monitoring Technologies Software and Data Management
  10. 10. www.pulse-monitoring.com Monitoring Technologies Data Processing and Reporting • Spectrum of the motion data (Acceleration versus Freq) • Natural frequency determination • Integration of time series (Displacement) • Wave information (Wave height, Period or directions) • Screens of anomalies • Repair / modification verification – Decrease of displacement
  11. 11. www.pulse-monitoring.com Valemon Jacket Monitoring • Location: Norwegian North Sea • Water Depth: 135m • Valemon jacket – 9,000 tonne – 20 slot capacity • Monitoring Campaign: 2012/13 Introduction
  12. 12. www.pulse-monitoring.com Valemon Jacket Monitoring • Monitor pre-drilling phase: – Monitor deflections of jacket and jackup • Confirm that equipment is operated within design limits: – Confirm that jacket deflections remained within expected levels • Validate & calibrate simulation models: – Compare measured and predicted responses to improve models for future operations Client requirements Increased motion after jacking up
  13. 13. www.pulse-monitoring.com Monitoring system Valemon Jacket Monitoring
  14. 14. www.pulse-monitoring.com Valemon Jacket Monitoring • 3 axis precision accelerometers • Installed in Eexd- rated housings • Hardwired back to central control room using armoured cable Loggers
  15. 15. www.pulse-monitoring.com Valemon Jacket Monitoring Strain sticks • Strain sticks installed in 4 locations • Measuring curvature of the riser • Each stick linked to an EExd logger
  16. 16. www.pulse-monitoring.com Valemon Jacket Monitoring Environmental sensors • Air-gap wave radar installed • Measuring wave height and period • ADCP- measuring current speed and direction through depth
  17. 17. www.pulse-monitoring.com Valemon Jacket Monitoring Jackup Data – Displacement
  18. 18. www.pulse-monitoring.com Valemon Jacket Monitoring Jacket Data – Displacement
  19. 19. www.pulse-monitoring.com Valemon Jacket Monitoring Data – Valemon Jacket Motion / Wave Height 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0 1 2 3 4 5 6 7 8 9 10 Displacement(m) Significant Wave Height, Hs (m) Pulse E.On Huntington Data Processing Support MAXIMUM MEASURED AND PREDICTED LATERAL MOTION ON JACK-UP Motion Logger POD-0007, 29/11/2012 - 24/01/2013 Maximum Measured Displacement Calculated (Nobel Denton) Nobel Denton Hs vs. Displacement
  20. 20. www.pulse-monitoring.com Valemon Jacket Monitoring Data - Jacket Motion Fatigue 0 2 4 6 8 10 12 14 1.0E-10 1.0E-08 1.0E-06 1.0E-04 1.0E-02 1.0E+00 13-Feb 17:02 16-Feb 17:02 19-Feb 17:02 22-Feb 17:02 SignificantWaveHeight,Hs(m) CumulativeDamage Event Timeline Statoil - West Elara And Valemon Platform Monitoring Campaign CUMULATIVE FATIGUE DAMAGE - UPPER HP RISER Measured Data - 13/02/2013 - 25/02/2013 Measured Data Predicted Data Significant Wave Height Hs
  21. 21. www.pulse-monitoring.com Valemon Jacket Monitoring • Monitoring system’s demonstrated responses of critical equipment remained within design limits during campaign length • The jacket moves 25-33% as much as jackup • Complex responses of the jackup to wave loading observed • Preliminary model calibration achieved, but difficult to fully calibrate at this stage Outcome
  22. 22. www.pulse-monitoring.com • Platform monitoring is integral to the IM Strategy of offshore platforms • Online Monitoring is used to measure actual response vs predicted responses to validate design and improve models for future operations • Data used to make informed decisions on life extension of assets Conclusion Conclusion
  23. 23. www.pulse-monitoring.com More Info • Visit www.pulse-monitoring.com • Or email: info@pulse-monitoring.com
  24. 24. www.pulse-monitoring.com References • Use of Real Time Integrity Monitoring on Valemon Jacket During Drilling Operations, A. Rimmer - 2H, I. Træen, H. Moberg - Statoil

Presented at OMAE San Francisco in 2014 by Paul Chittenden, this presentation shows how oil and gas operators are using real-time monitoring to extend the life of their production platforms. Operators are using Pulse's monitoring technologies for some of the following: • Extending operating life • Structural Integrity (Storm Events) • Optimising inspection programs • Early warning systems (Structural or Foundational) • Assessing Repairs • Increasing deck mass • Adding conductors / risers • Collision detection • Design verification (New Installations)

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