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Lloyd’s Register services to the energy industry

Reliability of In-Service NDT

Speaker information

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Introduction
•

NDT is a critical tool in our Integrity Management Toolbox

•

The majority of In-Service Inspection we do is NDE

•

Piping, vessels, exchangers, tanks, pipelines & structures

•

We place a lot of FAITH in the NDT results and use it to determine FFS

•

Is our FAITH justified?

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Reliability of In-Service NDT

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Types of NDT applied for In-Service Inspection
•

Ultrasonic

•

Radiography

Advanced techniques –
•

ToFD, Phased Array,……

•

Digital / Computerised RT

•

Slofec / MFL

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Analysis
Build comprehensive Asset Register

HIGH

MED HIGH

Perform detailed Risk Based Inspection (RBI) studies

MEDIUM

Determine applicable damage mechanisms
LOW

Great lengths – but can we detect, can we measure, does technician know what
he is looking for????

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Construction NDT v In-Service NDT
•

Training and Certification to support Oil
& Gas Construction activity

•

Increasing % of NDT in O&G is InService NDT / Non-Intrusive Inspection
(NII)

•

However most NDT training still reflects
looking for weld flaws rather than inservice damage mechanism

•

Often Opco’s not rigorous enough in
specifying requirements

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

In-Service NDE – so what’s different?
•

Different skills & mindset required

•

Techniques / responses / interpretation differ greatly

•

Corrosion and Erosion – random

•

Defect locations and orientation and morphology not readily predictable………

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Weld Root Corrosion & Erosion/Corrosion *

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Co2 Corrosion & SRBs

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Erosion & Crevice Corrosion

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Corrosion Under Insulation (CUI) *

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Pipelines

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Influencing Factors for Consideration
•

PANI (Programme for Assessment of NDT in Industry) requirements

•

Take account of Human factors & enviromental conditions

•

Training on specific samples

•

Knowledge of damage mechanisms

•

Appropriate Written Procedures and Reporting requirements

•

Suitable POD to give desired Confidence Level

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Typical Issues Observed
Competence – not received correct training for actual task
Experience / knowledge – no appreciation of what inside of pipe may actually
look like!
Procedures – do not reflect in-service application (no DAC curve!)
Reporting – not clear & concise, poor layout and lack detail to support FFS
Appropriate technique – will not find and measure actual expected damage

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

New Inspection Technology
•

Not always available in MEA region

•

Sometimes equipment is available, but the Operator??

•

In-Service training & experience with technique is still essential

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

What of Other Techniques?
Radiography
Trained to interpret and
identify weld flaws
•

Measurement of
remaining ligament
•

Scale, sand, heat,
vibration, debris…..
•

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

In-Service Radiographs

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Inspection Technique Selection
•

Consideration is required to ensure selection of most appropriate technique(s)

•

Random deep, isolated, localised pitting on 6”dia piping – long lengths of
straight pipe

•

Manual ultrasonic scanning with 0 degree compression probe – is this the best
approach?

•

Looking for needle in a haystack! Applied Magnetic Flux Leakage (MFL) as a
rapid screening, with detailed UT assessment of limited areas of interest

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Typical Areas for Improvement
•

In-Service orientated NDE Procedures

•Consider

inspection conditions (access, weather, boredom, etc.)

•

Make use of “hard copy” techniques

•

Mix and match techniques (Slofec/TOFD/PE)

•

Assurance/ x-checks on high criticality

•

Ensure relevant training and awareness

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

Summary
- In-Service NDT is an essential tool in maintaining the Integrity of our Assets
-

In-Service NDT requires specific skills, training, experience & procedures

-

Be wary of putting too much FAITH in NDT results unless you also have the
appropriate controls and assurance activities in place

-

LR can help you have greater confidence in this critical data

November 11-14, 2014 Adipec
Lloyd’s Register services to the energy industry

November 11-14, 2014 Adipec

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What is the reliability of in service non-destructive testing (NDT)?

  • 1. Lloyd’s Register services to the energy industry Reliability of In-Service NDT Speaker information November 11-14, 2014 Adipec
  • 2. Lloyd’s Register services to the energy industry Introduction • NDT is a critical tool in our Integrity Management Toolbox • The majority of In-Service Inspection we do is NDE • Piping, vessels, exchangers, tanks, pipelines & structures • We place a lot of FAITH in the NDT results and use it to determine FFS • Is our FAITH justified? November 11-14, 2014 Adipec
  • 3. Lloyd’s Register services to the energy industry Reliability of In-Service NDT November 11-14, 2014 Adipec
  • 4. Lloyd’s Register services to the energy industry Types of NDT applied for In-Service Inspection • Ultrasonic • Radiography Advanced techniques – • ToFD, Phased Array,…… • Digital / Computerised RT • Slofec / MFL November 11-14, 2014 Adipec
  • 5. Lloyd’s Register services to the energy industry Analysis Build comprehensive Asset Register HIGH MED HIGH Perform detailed Risk Based Inspection (RBI) studies MEDIUM Determine applicable damage mechanisms LOW Great lengths – but can we detect, can we measure, does technician know what he is looking for???? November 11-14, 2014 Adipec
  • 6. Lloyd’s Register services to the energy industry Construction NDT v In-Service NDT • Training and Certification to support Oil & Gas Construction activity • Increasing % of NDT in O&G is InService NDT / Non-Intrusive Inspection (NII) • However most NDT training still reflects looking for weld flaws rather than inservice damage mechanism • Often Opco’s not rigorous enough in specifying requirements November 11-14, 2014 Adipec
  • 7. Lloyd’s Register services to the energy industry In-Service NDE – so what’s different? • Different skills & mindset required • Techniques / responses / interpretation differ greatly • Corrosion and Erosion – random • Defect locations and orientation and morphology not readily predictable……… November 11-14, 2014 Adipec
  • 8. Lloyd’s Register services to the energy industry Weld Root Corrosion & Erosion/Corrosion * November 11-14, 2014 Adipec
  • 9. Lloyd’s Register services to the energy industry Co2 Corrosion & SRBs November 11-14, 2014 Adipec
  • 10. Lloyd’s Register services to the energy industry Erosion & Crevice Corrosion November 11-14, 2014 Adipec
  • 11. Lloyd’s Register services to the energy industry Corrosion Under Insulation (CUI) * November 11-14, 2014 Adipec
  • 12. Lloyd’s Register services to the energy industry Pipelines November 11-14, 2014 Adipec
  • 13. Lloyd’s Register services to the energy industry Influencing Factors for Consideration • PANI (Programme for Assessment of NDT in Industry) requirements • Take account of Human factors & enviromental conditions • Training on specific samples • Knowledge of damage mechanisms • Appropriate Written Procedures and Reporting requirements • Suitable POD to give desired Confidence Level November 11-14, 2014 Adipec
  • 14. Lloyd’s Register services to the energy industry Typical Issues Observed Competence – not received correct training for actual task Experience / knowledge – no appreciation of what inside of pipe may actually look like! Procedures – do not reflect in-service application (no DAC curve!) Reporting – not clear & concise, poor layout and lack detail to support FFS Appropriate technique – will not find and measure actual expected damage November 11-14, 2014 Adipec
  • 15. Lloyd’s Register services to the energy industry New Inspection Technology • Not always available in MEA region • Sometimes equipment is available, but the Operator?? • In-Service training & experience with technique is still essential November 11-14, 2014 Adipec
  • 16. Lloyd’s Register services to the energy industry What of Other Techniques? Radiography Trained to interpret and identify weld flaws • Measurement of remaining ligament • Scale, sand, heat, vibration, debris….. • November 11-14, 2014 Adipec
  • 17. Lloyd’s Register services to the energy industry In-Service Radiographs November 11-14, 2014 Adipec
  • 18. Lloyd’s Register services to the energy industry Inspection Technique Selection • Consideration is required to ensure selection of most appropriate technique(s) • Random deep, isolated, localised pitting on 6”dia piping – long lengths of straight pipe • Manual ultrasonic scanning with 0 degree compression probe – is this the best approach? • Looking for needle in a haystack! Applied Magnetic Flux Leakage (MFL) as a rapid screening, with detailed UT assessment of limited areas of interest November 11-14, 2014 Adipec
  • 19. Lloyd’s Register services to the energy industry Typical Areas for Improvement • In-Service orientated NDE Procedures •Consider inspection conditions (access, weather, boredom, etc.) • Make use of “hard copy” techniques • Mix and match techniques (Slofec/TOFD/PE) • Assurance/ x-checks on high criticality • Ensure relevant training and awareness November 11-14, 2014 Adipec
  • 20. Lloyd’s Register services to the energy industry Summary - In-Service NDT is an essential tool in maintaining the Integrity of our Assets - In-Service NDT requires specific skills, training, experience & procedures - Be wary of putting too much FAITH in NDT results unless you also have the appropriate controls and assurance activities in place - LR can help you have greater confidence in this critical data November 11-14, 2014 Adipec
  • 21. Lloyd’s Register services to the energy industry November 11-14, 2014 Adipec

Hinweis der Redaktion

  1. Lloyd’s Register operates independently of any government or other body and can assure absolute commercial impartiality. Its consitution directs Lloyd’s Register to enhance the safety of life and property both at sea and on land. It is a non-profit distributing organisation, this means that we do not have shareholders who require a return on the investment made. Our profits are used for research and development, training our staff and to improve services.We are committed to advance education in the engineering and technological disciplines. For a long time we have supported a wide range of programmes with the commitment of £5 million per annum to the programme, which is divided into four key sectors. For young people at school we found the of Young Engineers Clubs in England and Wales and the annual Young Engineers for Britain competition. We also fund a number of Arkwright Scholarships that recognise exceptional students and projects which bring young people together to experience the fun of engineering. We work with university students by providing scholarships, including scholarships at universities, for instance in Szczecin and Shanghai, and by funding competitions and events.Also included in this sector is the annual scholarship awarded to an MSc student at University College, London, commemorating the opening of the new London Office in 2000 by HM The Queen. An MSc engineering student is also sponsored in co-operation with the Union of Greek Shipowners.The engineering and science professions are supported by funding lectures, competitions, such as the annual Safer Ship Competition, organised by the Royal Institution of Naval Architects, and projects at the World Maritime University. Research is funded by giving support to specific university research centres. For a long time we have funded, with others, a Safety Systems Research Centre at Bristol University and this is being expanded with a long term commitment, a University Technology Centre at Southampton, specialising in hydrodynamics, and the sponsorship of a Chair in Transport Risk Management at Imperial College, London.
  2. Lloyd’s Register also operates through some subsidiary companies. The main subsidiaries are: Lloyd’s Register MHA – a company that provides assurance services to the rail industry. It specialises in rolling stock, signalling and telecommunications engineering. Lloyd’s Register Fairplay – the world’s largest independent supplier of maritime information services, maintaining details of approximately 90,000 sea-going ships and over 50,000 ships lost or broken-up. The company databases also includes records of over 170,000 organisations covering every sector in the maritime industry. The company publishes the annual Register of Ships. Lloyd’s Register Serentec – a company based in Raleigh, North Carolina, USA – is an industry leader in providing regulatory compliance and validation services to industries regulated by the US Food & Drug Administration (FDA). Serentec combines innovative project management techniques with rigorous quality review processes to deliver solutions to pharmaceutical, biotechnology, medical device, and healthcare companies. Stoomwezen – based in the Netherlands, this company carries out statutory and non statutory inspection, and certifies pressure equipment and plants.