Technology Advancements in Integrity Management of Storage Tanks

By

John Lilley and Mark Stone

Sonomatic Ltd

 

The industry is well versed with Corrosion mapping of vessels and pipework but Corrosion Mapping of Storage Tanks has always relied on “dropping the tank” which has an impact on production and risk. The industry does not like working in confined spaces and there are moves towards zero-man entry over the lifetime of storage and process vessels.

Storage Tanks are susceptible to a range of internal and external corrosion processes. As such inspection plays a major role in effective integrity management of Storage Tanks. Historically, inspection of the floor has relied on emptying the tank and personnel entry for cleaning and inspection. Internal inspection for other mechanisms also takes place at this time. This means tanks can be out of service for significant periods of time.

Sonomatic have developed a range of methods for inspection of Storage Tanks while in-service. A key element is robotic cleaning and inspection of the floor. This forms part of a comprehensive inspection in which the tank shell is also inspected non-intrusively using ultrasonic corrosion mapping supported by statistical analysis. The presentation will give an overview of the technologies involved, how these link into more efficient integrity management of Storage Tanks and will also include a case study of field application.

A fascinating not to be missed presentation

Date:            8th March

Venue:         Imperial College, Skempton Building, London SW7 2BB

18.00  Doors Open – Networking

18:30  Presentation – Sonomatic Ltd

20.00  Buffet & Refreshments – Networking

21.00  Close

 

For further information please contact

icorrlondon@gmail.com

ICorr – London Meeting – 8th March 2018 msrev[5798]

Developments in Remote Magnetic Monitoring of Stress in Ferromagnetic Pipelines

By:Hamed Habibi – Speir Hunter Limited

 

This presentation introduced and explain the benefits of Stress Monitoring in Pipeline Integrity Management. The technique is the only inspection technique that can simultaneously map the lateral position and depth of cover of the pipeline whilst also providing comprehensive defect detection. Moreover, it provides additional deliverables that anticipate the increasing demand of pipeline regulatory authorities such as the location of casings and wrinkle bends.

Hamed talked the audience through the benefits of using this method which is developing to be known as silver bullet of pipeline integrity as it is the only method of measuring stress in pipeline wall. He explained the physical principles of the method that is also capable of measuring the depth of cover, lateral position and detecting welded joints. Specifications of this innovative method was detailed in terms of achieved performance in field trials which took loads of interests among audience. Loads of case studies were explained by the speaker to display the advantages of this the technique over traditional inspection methods in special cases. The technique which also is named Stress Concentration Tomography is able to assess condition of buried pipelines remotely without any dependency to a specific type of defect, manufacturing size, construction configuration or operating condition that will save a considerable amount of time, effort and budget while it will also provide an accurate 3-dimensional mapping of pipe and surrounding objects.”

For full article of the newsletter please click link below;

London Branch News – JAN17 – Remote Monitoring and YEP[5777].docx

London Branch 8th February 2018 Meeting

The Use of EIS as a Predictive Tool for Coating Lifetime

 By

Dustin Traylor – Axalta Global Product Manager

Dr Stephen Drew – Axalta EMEA Coatings Leader

This presentation will evaluate the use of Electro Chemical Impedance Spectroscopy (EIC) to assess the adhesive strength of FBE to the steel of transmission pipe and its use as a predictive tool to determine the lifetime of FBE coating systems

The technique has now been adopted by Aramco and Chevron and gaining credibility as a useful tool in the pipeline market.

 

 Venue:         Imperial College, Skempton Building, London SW7 2BB

18.00  Doors Open – Networking

18:30  Presentation

21.00  Close

 

For further information please contact

icorrlondon@gmail.com or george.winning@clariant.com

ICorr – London Meeting – 8th February 2018[5539]

The 29th Institute of Corrosion Lunch at The Royal Overseas League

The 29th Institute of Corrosion Lunch at The Royal Overseas League, was another huge success with 177 people attending the event in Mayfair London.

 Guests started to arrive at 11.30 for a pre-dinner drink and were seated by 12.30 for the first of two acts by The Sirens a singing quartet. It was really well received and set the scene for the afternoon. The meal was excellent and congratulations to the ROSL who never disappoint. After lunch the Chair of London Branch thanked everyone for their continued support of The Institute and in particular London Branch, the organising committee and the Branch Committee who continue to drive the Institute in London forward.

The 2 new initiatives were mentioned; Young Engineer Training Program and Route to Chartered Status which start in January 2018, along with the two new training programs; Fundamentals of Corrosion and the CP Training Program.

The President addressed the guests to a rapturous applause once again thanking everyone for their support and explaining the Institute has exciting plans that will start in Q1 2018.

After the raffle two guests were honoured with a small gift following their highly acclaimed Tallow Chandler award for their work in Materials and Corrosion, a tremendous achievement by Charlotte Vie in 2016 and Simon Bowcock in 2017.

The timing for the event this year was slightly different allowing guests to socialise and network at the ROSL until 7.00pm which appeared to be extremely popular; lots of notes being taken and exchanging of business cards.

Thanks again to all those that assisted in the organisation of the event and we look forward to another exciting event in December 2018

To see the complete newsletter please click link below;

ICorr – London Branch Annual Christmas Lunch 2017

Influence of H2S on the Pit to Crack Transition in Sour Testing of Corrosion Resistant Alloys

James Hesketh – National Physical Laboratory

Stable pitting is a precursor to sulphide stress corrosion cracking (SSCC), which is one of the main causes of failure of stainless steel pipelines used in sour Oil and Gas production. Despite this, the underlying mechanism governing the growth of such pits is poorly understood, and hence materials selection for sour service is dependent upon costly and time consuming environmental exposure and SSCC test programmes.

In this study we investigate the role of hydrogen sulphide (H2S) in pit propagation as a first step towards the development of accelerated test methods for SSCC resistance. Novel electrochemical techniques are employed to determine the relationship between bulk solution chemistry and the critical pit chemistry required to induce stable pitting in sour environments.

Electrochemical measurements are correlated with results obtained from standard SSCC tests and are rationalised in terms of the balance between H2S diffusion through the pit mouth, H2S consumption within the pit and the role of the external cathode.

The implications for more informed and cost-effective materials selection are discussed.

For copy of the newsletter please click the link

London Branch News – NOV17 – James Hesketh[5479]