Microbiologically influenced corrosion: A review focused on hydrotest fluids in subsea pipelines
MetadataShow full item record
The selection of an appropriate seawater treatment for preservation of subsea pipelines during hydrotesting and subsequent wet lay-up poses a significant dilemma for offshore engineers. Seawater, which is routinely used in the hydrotesting of offshore pipelines, contains oxygen and microorganisms which are known aggressive species towards metallic materials. Particularly, microbiologically influenced corrosion (MIC) represents a serious threat to the extended preservation of wet-parked pipelines where degradation of treatment chemicals and the increase in microbial activity are expected. Despite the best efforts of corrosion researchers, mechanistic aspects of MIC in wet-parked pipelines remain elusive mainly because of the intricacies of biofilm-steel interactions and the diversity and variable nature of microbial life. In addition, there is limited experience and experimental data available on the long-term performance of hydrotest fluids and as a result, key misconceptions, biases and knowledge gaps continue to persist in the understanding and control of MIC in wet-parked assets. This article reviews the literature on MIC of offshore pipeline steels in seawater, in particular, MIC associated with hydrotesting and wet parking of pipelines to appraise methods, challenges and advances in the field. The impact of physico-chemical parameters and substratum properties on microbes and biofilms are discussed in an attempt to provide an update on the critical factors influencing MIC.
Showing items related by title, author, creator and subject.
Microbiologically Induced Corrosion Associated with the Wet Storage of Subsea Pipelines (Wet Parking)Machuca Suarez, Laura (2017)BBefore and after commissioning of subsea equipment and pipelines, it is typically the case that operational challenges and delays can lead to prolonged periods of equipment shutdown. To ensure pipelines remain within ...
A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907Hobbs, G.; Heywood, I.; Bell, M.; Kerr, M.; Rowlinson, A.; Johnston, S.; Shannon, R.; Voronkov, M.; Ward, C.; Banyer, J.; Hancock, P.; Murphy, T.; Allison, J.; Amy, S.; Ball, L.; Bannister, K.; Bock, D.; Brodrick, D.; Brothers, M.; Brown, A.; Bunton, J.; Chapman, J.; Chippendale, A.; Chung, Y.; DeBoer, D.; Diamond, P.; Edwards, P.; Ekers, Ronald; Ferris, R.; Forsyth, R.; Gough, R.; Grancea, A.; Gupta, N.; Harvey-Smith, L.; Hay, S.; Hayman, D.; Hotan, A.; Hoyle, S.; Humphreys, B.; Indermuehle, B.; Jacka, C.; Jackson, C.; Jackson, S.; Jeganathan, K.; Joseph, J.; Kenda, R.; Kiraly, D.; Koribalski, B.; Leach, M.; Lenc, E.; MacLeod, A.; Mader, S.; Marquarding, M.; Marvil, J.; McClure-Griffiths, N.; McConnell, D.; Mirtschin, P.; Neuhold, S.; Ng, A.; Norris, R.; O'Sullivan, J.; Pearce, S.; Phillips, C.; Popping, A.; Qiao, R.; Reynolds, J.; Roberts, P.; Sault, R.; Schinckel, A.; Serra, P.; Shaw, R.; Shimwel, T.; Storey, M.; Sweetnam, A.; Tzioumis, A.; Westmeier, T.; Whitingl, M.; Wilson, C. (2016)We use observations from the Boolardy Engineering Test Array (BETA) of the Australian Square Kilometre Array Pathfinder (ASKAP) telescope to search for transient radio sources in the field around the intermittent pulsar ...
Parks, people and planning: local perceptions of park management on the Ningaloo Coast, North West Cape, Western AustraliaIngram, Colin Barry (2008)Attaining the ‘appropriate’ balance between human use of national parks and their protection is a topic of considerable public, scientific and business interest and is thus an important focus for research. An increasingly ...