EI LIVE | Ageing and Life Extension of Offshore Structures for Oil, Gas and Wind Energy

Training Course
  • 19-04-2021
  • 00:00
  • Non-Member - £1000.00
    Member - £900.00
    + VAT
  • Book now

This on-line course, delivered over four half days, will give you an understanding for managing ageing and life extension of structures for offshore oil and gas installations and wind turbines.

Many offshore assets in the oil and gas and wind industries have been in production for decades and their structures have either exceeded or are reaching their original design life. The structures for some of these assets are now in an aged and degraded condition and are experiencing similar challenges. Where these structures are still required for future energy production there is a need to validate their on-going structural integrity so as to extend their safe life and comply with the relevant regulatory framework.

There is a need for more engineers working in these industries to understand the demanding tasks and practices needed for competent and efficient maintenance of ageing structures, which include inspection planning and execution, evaluation, analysis, data management and in some cases repair and mitigation. This course aims to enhance the capability and competence of structural engineers and technologists in their professional development in this area, and is intended for personnel from operating companies, regulators, consultancies, inspection and verification organisations.
The course will be given by three engineers with extensive consultancy and regulatory experience of ageing and life extension of offshore structures.

Learning objectives:

This course aims to provide attendees with:
• Understanding of the main ageing issues affecting offshore structures in late life
• Knowledge of the key elements in managing the integrity of ageing structures
• Awareness of the basic principles for assessing structures for life extension
• Appreciation of relevant regulatory expectations, codes & standards, good industry practice and available guidance

Learning outcomes:

Following this course attendees will be expected to be able to:
• Recognise the main hazards, uncertainties and threats to structural integrity in later life
• Know the key steps in developing a structural integrity management plan for late life structures
• Be aware of the methods of analysis to support life extension
• Select inspection and repair methods appropriate for an ageing structure

Course Outline:

Day 1:
• Introduction to ageing and life extension of offshore structures, and the demographics and cases of failure of ageing structures
• Regulations and codes and standards relevant to ageing and life extension
• Types of Ageing including:
o main changes and hazards in late life and life extension
o corrosion, fatigue and other damage and degradation mechanisms
• Discussion of attendees' experience of structures in a degraded condition

Day 2:
• Managing structural integrity focusing on ageing structures in late life, including the planning of inspections
• Methods for inspection of steel and concrete structures underwater and an introduction to structural monitoring methods
• Evaluation of inspection findings and the need for repair and mitigation, including the evaluation of fatigue cracks using BS 7910

Day 3:
• Requirements for assessment of ageing structures for life extension and the types of analysis required
• Methods for fatigue and strength analysis of ageing structures
• Probabilistic methods and their use and misuse, including their relevance for risk based inspection planning
• Review of structural analysis with examples

Day 4:
• Repair and mitigation methods for ageing steel structures with a case study
• Repair and mitigation methods for corrosion protection systems and ageing concrete structures
• Industry and regulatory guidance on ageing and life extension and other references for further reading

Tutor profile:

Gerhard Ersdal
28 years’ experience primarily in the offshore industry. Presently adjunct professor at University of Stavanger and Principal Engineer at the Petroleum Safety Authority Norway (PSA). Previously Principal Engineer at the Norwegian Petroleum Directorate and the engineering company Multiconsult. Author and co-author of several papers on life extension of ageing offshore structures and author of a book on Ageing and Life Extension of Offshore Structures published by Wiley. Member of the Norwegian expert committee for offshore structures. Co-author of several national and international standards on offshore structures and structural integrity management.

John Sharp 
Over 40 years’ experience in the offshore industry. Presently Visiting Professor in Offshore Technology at Cranfield University. Previously held a senior position in the Offshore Safety Division of UK Health & Safety Executive, with special interests in inspection and structural integrity. Author and co-author of many conference papers on life extension of ageing offshore installations and a co-author of the book on Ageing and Life Extension of Offshore Structures published by Wiley (2019). Has carried out relevant studies for both PSA Norway and the industry on life extension.

John Wintle 
Over 35 years’ experience working on ageing and life extension in the offshore and nuclear sectors. Presently Visiting Professor of Mechanical Engineering at the University of Strathclyde, Consultant Engineer and Fellow of the Welding Institute (TWI). Author of the Energy Institute Guidance on Life Extension of Offshore Installations and UK Health and Safety Executive (HSE) Research Report 509 on the Management of Plant Ageing together with many papers and presentations at conferences and seminars including the launch of HSE’s Key Programme 4 on Ageing and Life Extension. Was a reviewer of the book on Ageing and Life Extension of Offshore Structures published by Wiley (2019).

CPD hours:


Contact details:

Book now