The January meeting was joint with TWI, when Neil Gallon & Michael Young of Rosen presented a talk on Preferential Weld Corrosion (PWC).
This was the first of its type in the North East aimed at creating some synergy between ICorr and TWI. A good crowd of over 20 came to hear the presentation which went into in detail about the differences and complexity of welds in pipelines, and the possibility of galvanic corrosion causing the metal adjacent to the weld being consumed. The heat affected zone (HAZ) can be attacked preferentially to the weld because of changes in morphology and differing galvanic potentials. Potential issues are very difficult to diagnose and therefore a lot of work has been done to understand the effect of adding corrosion inhibitors, for example when they are added to water injection/production pipes to protect the base metal, however this can also cause issues as they do not protect the weld. In these cases the weld can become anodic and preferential weld corrosion can occur.
One very interesting question was asked about the potential ‘double whammy’ of PWC and CUI occurring at the same time. It was confirmed that this could potentially occur if the insulation system was damaged allowing water to enter the system and causing electrolytes to leach from the insulation and gather at the weld.
In summary the evening was great success and this type of joint meeting will be used again.
The February talk was by Dr Bijan Kermani of KeyTech, on corrosion, the outlook, challenges and future of the discipline, particularly in regards to hydrocarbon production. Having briefly touched on the economics of corrosion in the oil and gas industry, Bijan went on to present an overview of the projected global energy mix over the next two to three decades, highlighting that there is an increasing global energy demand and that hydrocarbons will contribute the majority of this. He emphasised that technology continues to play a fundamental role for the hydrocarbon industry sector’s business success, reducing capital and operational expenditure, environmental, safety and reputational risk, and increasing reliability. He emphasised that innovative materials, corrosion and integrity management technologies play a significant role in supporting this. He argued that while significant progress has been made over the years in understanding the root causes of integrity management threats with advances in technology and expertise, there still remains major challenges.
The talk covered three themes including (i) a technology outlook in energy, (ii) corrosion and materials challenges facing hydrocarbon production industry sector, and finally (iii) what is required to move the corrosion and metallurgy discipline forward. In this, a brief reference was made to the corrosion discipline with respect to future priorities to attract a new generation of high calibre professionals. It was said that our contributions to all aspects of social, environmental, safety and security are clear and that the discipline has had significant achievements. The key achievement is the provision of public welfare; a ‘positive image’ rather than the reduction of failures which may convey a negative image of our discipline. By this change of focus we can attract even a better generation of young students.
Bijan concluded that the future is bright, although many challenges remain and there is a growing requirement for innovative solutions with timely implementation to achieve next level performance.
The branch was very fortunate to have some excellent speakers for its winter meetings at Robert Gordon University (RGU) which attracted good audiences.
Dr Ed Whyte, principal corrosion engineer, and Paul McCarthy, of Plant Integrity Management (PIM) commenced the Q1 2019 programme with some great insights into the concepts of Maximising Economic Recovery (MER). Ed’s role has encompassed the provision of corrosion and integrity engineering services to PIM’s clients, while Paul is currently involved in various maintenance and inspection optimisation projects for a range of North Sea Operators.
They discussed the historic barriers to MER and how a step change from 60-74% production efficiency has recently been achieved, highlighting that only a 1% increase in efficiency, can dramatically produce an extra 12 million barrels per year in the North Sea, as 2016 figures have demonstrated.
The initial UKCS Review (2013), the final Wood Report (2014) and new OGA (2015) UK MER Legislation (2018), have all recognised the importance of reducing UK plant downtime / lost production. The most high profile MER document being the Wood Review (https://www.ogauthority.co.uk/about-us/what-we-do/the-wood-review/)
Although there has been a continuing downward trend in the number of plant losses, there remains an ever growing demand to limit UK Oil / Gas production outages, so as to maximise what income is available.
Most importantly, the presenters explained how gains to production efficiency can be achieved by approaching integrity management in a very different manner than has been the case before, through taking a long-term (but modular) view, with improved collaboration and engagement, assisted in all this by modern IT tools and devices that control data and costs more effectively.
The McKinsey Global Institute (2017) has studied in detail the longer term economic impact of “short termism”, and industry’s reluctance to invest in larger / longer maintenance projects. McKinsey claim that this figure is as high as 87% of executives and directors that feel pressured to demonstrate strong financial performance within 2 years or less, thus limiting available anti-corrosion / preventative maintenance expenditure.
In line with the McKinsey findings, PIM proposed that large maintenance projects be broken into more manageable / more achievable smaller repair / intervention scopes that target just one specific area or system, under a single project manager. This approach was then explained in greater detail by looking at the specific needs of upcoming CUI / PFP / FM preventative maintenance programmes and how they could be accommodated within this new modular approach to minimise external corrosion risks.
The full text of this most interesting and informative presentation can be seen at: https://www.youtube.com/watch?v=6Y36lf6ApIE
The February meeting was billed as a special Coating / Linings event, with two very knowledgeable presenters, Ajith A Varghese from International Paint Ltd and Gary Carswell of AEGION Group of Companies, who gave most interesting talks on Corrosion under Insulation (CUI) preventative coatings and Anti-Microbial Pipeline Linings, respectively.
Firstly CUI, which is a major issue that causes great cost to industry, and is currently the subject of a major project by the Oil & Gas Technology Centre, Aberdeen (OGTC). CUI poses a significant operational, safety and economic challenge. This is magnified in the North Sea, where many of the assets and infrastructure are operating well beyond their expected design life, and the OGTC vision is to eliminate all corrosion failures due to CUI by 2026.
Ajith explained in great detail, the mechanisms of CUI, the integrity risks created, and the extensive research and development programmes undertaken in their Newcastle Laboratories. All prevailing ISO and NACE Standards, and their recent amendments, were discussed in the context of developing a new preventative product, and the lengthy but very necessary processes by which this is then taken to market, incorporating lessons learnt from field trials and customer feedback. In particular alkylated amine epoxies were discussed, which have been proven to have superior DFT cracking tolerance to over-application and increased productivity even at low temperatures, compared to standard epoxy phenolic systems.
Gary Carswell then explained in the context of internal corrosion prevention, how the use of protective pipeline liners has been very widely adopted by both the Energy and Non-Energy Sectors.
MIC related pipeline leaks typically account for 40% of all corrosion related failures, thus these compressive and rotational liner insertion processes can bring great advantages and enormous savings by extending the lives of water injection lines offshore and in many water distribution systems onshore. The 47km long Tweedsmuir offshore water injection lining was a prime example of this technology being put into practice for North Sea operations with sections pre-lined before laying.
This technology incorporates anti-microbial mitigation chemicals into the lining system that can then successfully prevent the growth and spread of MIC organisms. Typically a design life of 25yrs is specified for such lining systems but further R&D programmes are working towards a 50 year design life. In service failure of linings is extremely rare, provided adequate care is taken in respect of preparation and across pipeline joints.
Gary explained the many different lining types that protect against internal corrosion, their application systems and different geographical needs, in a very informative manner that was appreciated by all.
Both January and February talks generated many questions from the audience, which were well responded to by the speakers. The talks will be the subject of follow-up technical papers later in Corrosion Management.
Dr Yunnan Gao, the ICorr Aberdeen Chair, congratulated all speakers and presented them with Certificates of Appreciation.
The next technical evening, which will be run jointly with the Marine Corrosion Forum, will be held on Tuesday 30 April, when Dr. Ian Carpenter of Scaled Solutions, will present a talk on ‘Corrosion Inhibitor Screening: Impact of Test Approaches’ For the convenience of MCF conference attendees, this event will be held at ICorr’s old home, the Palm Court Hotel, starting at 5.30 pm.
Prior to this, a large range of papers will be presented by MCF commencing at 10.30 a.m, including:
• Oilfield reservoir souring; Forecasting of Microbiological sour gas production using the DYNAMICTVS© model, by Matt Streets of Rawwater Engineering.
• A comprehensive approach to Integrity assessment of Critical structural components operating in Marine environments with ASPIRE™ by Sebastian Hartmann, Payam Jamshidi, Innospection and TWI.
• CP inspection and monitoring of Subsea pipelines by Ross Fielding of Impalloy Ltd.
A full list of upcoming presentations can be found at https://www.marinecorrosionforum.org
Looking further ahead, the branch will be hosting its annual full-day Corrosion Awareness course on 27 August 2019, comprising of a number of lectures / presentations focusing on microbiologically influenced corrosion (MIC) in pipeline systems. This year’s CAD programme will include talks by ROSEN specialists and other visiting speakers, on their MIC experiences from global operations covering – Sampling, Analysis, Monitoring of Pipelines for MIC damage, Chemical Mitigation / Cleaning Strategies and finally Inspection, Modelling and Monitoring approaches.
Most certainly this event will provide a very comprehensive introduction, to this very significant and often troublesome area of Corrosion Control / Prevention.
As usual, all branch presentations can be found on: https://sites.google.com/site/icorrabz/resource-center, and full details of future events can be found on the diary page of the magazine and on the website, or by contacting, ICorrABZ@gmail.com
The Institute of Corrosion North West Branch Annual General Meeting
Date: Thursday 13 June 2019.
Time: 6:00 pm
Location: Heyrose Golf Club Tabley Cheshire WA16 0HZ
You are welcome to bring partners, friends and colleagues, whether they are ICorr members or not to the golf day, buffet and Annual General Meeting. Teams of golfers are also welcome.
The competition is Stableford – Full Handicap. A series of tee times have been booked for groups of 4 people from 1:00 pm on wards.
The cost for the golf £25.25 per round and is payable on the day, It includes coffee and a bacon roll on arrival.
There will be a buffet available at a cost of £10 per person, which is available to both golfers and non-golfers. The buffet will be available from 5:30 pm
Annual General Meeting
The Annual General Meeting will start at 6:00 pm and is the ideal opportunity to meet other Institute of Corrosion members in a relaxing social atmosphere. It is also a good time to become more involved with Institute of Corrosion and the North West branch activities and nominations for the 2019 North West Branch Committee are always welcome.
The committee nominations are:
Chairman: Greg Brown
Deputy Chairman: TBA
Treasurer: Chris Atkins
Secretary: Brenda Peters
Committee Members: John Worsley, Paul Lambert, John Fletcher, Jane Lomas, Barry Windsor, Nick Thoday, Neil Fairweather, Ken Dykes and Paul Russell, Andy Bradley, Michael Leahy
To enable planning of the Annual General Meeting, golf and buffet, registration is accepted to be made before Wednesday 5th June 2019, please click below for registration form:
If you have any questions, please contact:
Brenda Peters at : +441706 871700 or alternatively email to email@example.com