• Home
  • Weld Flaw Acceptance Criteria for New Pipelines


Weld Flaw Acceptance Criteria for New Pipelines

  • 21 Jun 2022
  • 2:00 PM - 6:00 PM
  • Online (Zoom)
  • 369

Registration


Registration is closed
Technical Group Webinar

A Structural Integrity Technical Group Webinar

Attendees will learn about the implementation of fracture mechanics methods, (Engineering Critical Assessment = ECA), to derive flaw acceptance criteria for pipeline girth welds. In particular, overviews of the main standards applied for this purpose will be discussed, e.g. CSA Z662, API 1104 and DNV-OS-F101/RP-F108. Challenges introduced with the use of ECA will be discussed and the event will be rounded off with presentations on fatigue assessment for offshore risers and future challenges for the use of ECA on pipelines.

This webinar is aimed at materials, welding and NDT engineers, fracture mechanics specialists, pipeline engineers and all others who are interested in pipeline integrity, especially those involved in pipeline construction whether it is onshore or offshore.


Experts from industry and TWI will be presenting on a range of topics:

  • Practical Implementation of ECA Based Weld Flaw Acceptance Criteria in Canada, David Horsley, Consultant, Horsley Consulting Ltd.
  • API 1104 Appendix A – Past, Present and Future, Dr Robin Gordon, Senior VP, Microalloying International

  • DNV’s Recommended Approach for Assessing Flaws in Pipeline and Riser Girth Welds – DNV-RP-F108, Steinar Bjerke,  Principal Specialist, DNV

  • Challenges Implementing ECA Based Flaw Acceptance Criteria, David Reeves, Senior Engineer Materials and Welding, Nova People AG

  • Quantifying Probability of Fatigue Failure in Offshore Risers; an Alternative to the Use of Design Fatigue Factors (DFF), Dr Isabel Hadley, Technology Fellow, TWI Ltd
Presentation co-authored by: Alexandre Galiani Garmbis (Petrobras), Justin Crapps (ExxonMobil)
  • ECAs. The Future?, Dr Andrew Cosham, Consultant, Ninth Planet Engineering Limited

Download the latest programme here.


FEES
  • Professional Members of The Welding Institute: £25 + VAT (£30)
  • Industrial Members of TWI: £25 + VAT (£30)
  • Non-members: £95 + VAT (£114)
  • Retired Members: £25 + VAT (£30)
  • Students: £25 + VAT (£30)
  • TWI Training School Customers: £70 + VAT (£84)
  • TWI Staff - please contact Becki Parratt if you wish to register

Please note that payment must be made before the event in order to receive the joining instructions for the event.


CAN'T MAKE IT ON THE DAY?

If you can't join us on the day, you can still access the recording of the webinar and the presentations by registering ahead of the event.*

*presentation dissemination is dependent on presenter consent.


ASSOCIATE MEMBERSHIP (AWeldI) OF THE WELDING INSTITUTE

Registering on this Technical Group webinar as a non-member or a TWI Training Customer gives you full Associate Membership (AWeldI) for one year. To activate your membership, just complete the highlighted fields on the event registration form.

You will also benefit from:


BENEFITS OF ATTENDING THIS WEBINAR
  • Information transfer from experts
  • Discussion, questions and answers on the specific topics
  • A broader understanding of the extent of standards in the industry
  • Attendance of this event qualifies for CPD 

CONTINUOUS PROFESSIONAL DEVELOPMENT (CPD)

The Welding Institute awards points towards CPD for delegates attending this webinar. Every hour attendance of an event will earn 2 points towards your continuing professional development.

Please contact becki.parratt@twi.co.uk if you require a certificate of attendance towards your continuing professional development.


MEET OUR EXPERT SPEAKERS

David Horsley, Consultant, Horsley Consulting Ltd.

Presentation title: Practical Implementation of ECA Based Weld Flaw Acceptance Criteria in Canada

David Horsley has over 30 years’ experience in the pipeline industry, specializing on materials, welding, and fracture. Much of his time was spent on technology development and implementation. He was chairman of the PRCI Design, Materials and Construction committee for six years, and led the Fracture focus of that committee for many more years. He has served on the CSA pipeline Materials and Design standards committees. David is the author or co-author of over one hundred papers or articles pertaining to pipeline materials, welding, ECA and design.


Dr Robin Gordon, Senior VP, Microalloying International

Presentation title: API 1104 Appendix A – Past, Present and Future

Dr. Robin Gordon has consulted for the Oil and Gas Industry for more than 40 years and is a recognized expert in Engineering Critical Assessment (ECA) and Fracture & Fatigue Design. Dr. Gordon has authored more than 100 papers on the development and application of Fitness-for-Service and Reliability design and assessment methods to offshore structures, pipelines and pressure vessels. He has managed a number of major research projects on pipeline reliability as well as several international Joint Industry Projects on Fracture and Fatigue Design. Dr Gordon is currently involved in a number of research initiatives to develop ECA methods for pipelines that experience large strains during installation or operation and pipelines that operate in sour service.


Steinar Bjerke, Principal Specialist, DNV

Presentation title: DNV’s Recommended Approach for Assessing Flaws in Pipeline and Riser Girth Welds – DNV-RP-F108

Steinar Bjerke has over 24 years of experience in structural integrity analyses, specializing on fracture mechanics analyses, fatigue analyses, failure investigations, and materials testing. Steinar is the author and responsible for DNV-RP-R108 and the fatigue and fracture limit state of DNV-ST-F101.


David Reeves, Senior Engineer Materials and Welding, Nova People AG

Presentation title: Challenges Implementing ECA Based Flaw Acceptance Criteria

David Reeves is the Chair of the Technical Group. David has over 30 years’ experience working in onshore and offshore construction, heavy engineering, and nuclear industries. He started his career with Whessoe Heavy Engineering Ltd in 1976 as a technical apprentice, progressing to Senior Welding Engineer for Onshore Construction in 1985. Since 1991 David has worked in Offshore Oil and Gas occupying a variety of roles for installation contractors, engineering companies and operators.

In all these roles, he has been active in developing weld flaw acceptance criteria for pipelines and steel catenary risers using his knowledge of welding, NDT and engineering critical assessment. He is currently working for Nord Stream2 AG as a senior materials, welding and NDT engineer.


Dr Isabel Hadley, Isabel Hadley, Technology Fellow, TWI Ltd

Presentation title: Quantifying Probability of Fatigue Failure in Offshore Risers; an Alternative to the Use of Design Fatigue Factors (DFF)

Presentation co-authored by: Alexandre Galiani Garmbis (Petrobras), Justin Crapps (ExxonMobil)

Dr Isabel Hadley is a Technology Fellow, recently semi-retired from TWI. Her work focuses on the development of analytical flaw assessment techniques, and their application to safety-critical welded structures and pressure equipment. She has a particular involvement in the development and validation of structural integrity procedures and standards such as:

  • BS 7910 (UK flaw assessment procedure); Chair of the committee, 2008-2021
  • R6 (UK nuclear assessment procedure); member of the panel
  • FITNET (European fitness-for-service procedure); co-author.

She is also Royal Academy of Engineering Visiting Professor in Integrity Management at the University of Bristol, as part of an initiative to transfer industrial know-how to engineering undergraduates.


Dr Andrew Cosham, Consultant, Ninth Planet Engineering Limited

Presentation title: ECAs. The Future?

Dr Andrew Cosham is an independent consultant. He has worked in the oil and gas industry for over twenty five years. Andrew was previously employed by Atkins, Penspen/Andrew Palmer and Associates, and the Research & Technology Division of (the then) British Gas. Andrew is a Chartered Engineer and a Fellow of the Institution of Mechanical Engineers. Andrew is a member of two BSI technical committees: PSE/17/2 - Transmission pipelines and WEE/37 - Acceptance levels for flaws in welds.

The Welding Institute, Granta Park, Great Abington, Cambridge CB21 6AL, United Kingdom Tel: +44 (0)1223 899000
Copyright © 2022 TWI Ltd. All rights reserved.