Potential attenuation equation for pipelines and risers with multiple, equally spaced, identical superimposed spherical (bracelet) galvanic anodes that incorporates all relevant resistance terms (anode, coating, polarization, and metallic return path) has been modified for situations where anodes are displaced.
Multi-layer polypropylene (MLPP) insulation coating is used for thermal insulation of subsea pipelines. However in recent years - with higher wellhead operating temperatures - high temperature (HT) Fusion Bonded Epoxies have been used. This paper describes the author's experience with the MLPP systems over the last 20 years.
The monitoring program used in the Danish Sector of the North Sea to manage microbiologically influenced corrosion (MIC) risk assessment for seven pipelines. Quantitative data on microbial activity was obtained from pigging debris using real-time polymerase chain reaction of MIC-causing microorganisms.
Subsea flowlines and risers experience fatigue cycles due to thermal and/or pressure transients or vortex induced vibration (VIV). Tests were performed under constant stress intensity factor (K) levels, in a mildly sour environment and in seawater under cathodic protection to understand the difference in the CRG.
Corrosion management (CM) is a rather new concept and expertise. Its origins go back to early 2000's. The CM concept emerged from the UK's offshore oil and gas industry; from where the author also started his professional career.
Due to this newness and a vast multitude of application benefits, there has been a constant growth in demands for the provision of CM awareness, training, expertise and consultancy year after year.
The author has so far compiled a total of four CM books and this one is the last in the series. It is also the most comprehensive among the four books, with a greater emphasis and focus on CM field implementation.
Therefore, if one intends to implement CM across their asset(s), then this book could provide them with the required advice, instructions and guidelines on proper CM field implementation for both hydrocarbon and non-hydrocarbon industries.
The book covers subjects from how to define the scope of work to report writing and communicating the latest integrity findings.
It is written in a simple and jargon-free language and intended for various disciplines including: corrosion and integrity engineers, inspection engineers, pipeline engineers, process engineers, maintenance engineers and asset integrity managers.