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.
ICORR NE Branch – CUI Test Method Review Thank you to all those who attended the recent CUI test method review that was presented by Neil Wilds, Sherwin Williams Global Director CUI/Testing. It was one of our most successful events with over 30 attendees representing asset owners, engineers, test houses, coatings and insulation manufacturers.
This lead to some excellent discussion after the presentation and this has carried on via email. If you have any questions feel free to contact Neil directly. That’s it for 2018, I’ll share details of any future events planned in the New Year. As always, if you have any topics you would like to cover or present please get in contact!
All the best Icorr NE
Image Source: https://www.eddyfi.com/oil-gas/corrosion-under-insulation-plague-what-you-need-to-know/
Welcome and please join us for a review of test methods NACE TG516 and ISO 19277.
Please follow this LINK to register for free tickets.
The meeting will take place at the Rosen Group starting at 6pm for networking followed by a presentation / discussion at 6.30pm delivered by Neil Wilds, a thought leader in coatings for corrosion under insulation.
Neil has 32yrs experience in Coatings Industry working on high solids epoxy’s / testing and CUI/Insulation Coatings. Currently Technical Marketing Manager for Sherwin Williams and a committee member on TG516 Standard Practice for Evaluating Protective Coatings for Use Under Insulation.
There has been many iterations of test methods from coatings companies over the last 10-15 yrs looking at prequalification of CUI coatings. To a large extent this has not been standardised and accepted by the major Oil & Gas end users. Therefore over the last 3-4 years two CUI test method/prequalification standards have been worked on to solve this issue. This presentation will go through these tests methods and will hopefully
The Branch had their summer event at Hatfield College Durham on 6 July, including a very interesting tour of Durham Castle with a wee bit of a history lesson!
Durham castle is the ancient palace of the Prince Bishops of Durham. It was built on the order of William the Conqueror on his return from Scotland in 1072 as a projection of the Norman kings power in the North of England. Strangely enough he thought we were a bit ‘wild’, no change there then! The tour took us around the two chapels, the Norman chapel built in 1078 & Tunstall’s chapel built in 1540 exclusively for the Prince Bishop. The last wish of the Prince Bishop in 1837 was to leave the castle and all surrounding land to form the University, which at the time was heavily challenged by London and the government, but they thankfully lost. To this date it it is still owned as used by Durham University and quite frankly is impressive. It is a fully functional home to students who use the grand ballroom for breakfast and dinner, and the upper floors are now student accommodation for the lucky ones.
The second part of the evening was taken up by a very informative and interesting look at “UK Energy Past, Present and Future” presented by Prof Jon Gluyas, who is currently Dean of Knowledge Exchange and Director of Energy Institute Durham University. The presentation covered the issues of the ENERGY TRILEMA which within the UK is seen as relating to Equity/Sustainability/Security. The origins of the petroleum age were described with three important landmark discoveries, Bibi – Aybat Caspian 1846, Spindletop – Texas 1901, and Masjed e Suleyman – Iran 1908. The use of Mineral Oil really took off in the 1860’s and led to reduction in use of Whale Oil therefore resulting in the reduction of whale Hunting! One of the most frightening statistics was that there have been no large Oil discoveries for over 50 years which has resulted in a decline in global reserves. The audience was taken through the issues of declining oil and gas prices and the resultant increase in consumption which again is putting major stresses on reserves. The increase in USA on Shale Gas is having little effect on the reserves which were steady from the 80’s but the gap is narrowing.
The presentation then turned to the situation in the UK showing the trend in energy production and consumption and again a widening energy gap was described through which we as a nation need to address from within the UK. Recent headlines show what is happening to our energy base, the last three deep coal mines are to close resulting in increased imports of coal for the remaining coal fired power stations, Ferrybridge power station to close, and oil & gas platform decommissioning accelerating in some cases 10 years early.
In the 1980’s the UK was self-sufficient in coal/gas/oil, but today is increasing our import of these. Most of our gas consumption is imported from Norway and Qatar, which is a real issue at the moment and we are talking about increasing imports. Most of Europe’s gas in controlled by Russia! Currently UK has 14 days of gas reserves whereas France & Germany have 100 days.
Finally the UK is cancelling many green energy policies making renewables more expensive as currently gas and oil are low in price. UK is considering following US lead and drawing upon fracking as an energy source as well as increasing reliance on nuclear. In summary these are interesting times in the energy industry and the UK needs to find ways of improving its self-sufficiency. One potential source is Geothermal which is estimated to be around 100 years worth of low carbon heating here in the UK, with potential centres in Cheshire, East Yorkshire and Wessex, to name a few. Utilisation of this technology could cut UK emissions by up to 38%.