- Will Transocean be releasing any details on yesterday’s “water ingress?” Will the results of their internal investigation ever be made public? (We are still waiting for their report on the fatal crane incident last August offshore Nigeria.)
- Will an independent investigation be conducted? Will the authorities in Ghana participate?
- Did the damage that the Marianas incurred during Hurricane Ike (2008) or Tropical Storm Ida (2009) in any way contribute to yesterday’s apparent structural failure?
- When will we have an international system that ensures (a) prompt, independent, and complete investigations of all significant accidents, and (b) the timely release of findings?
Transocean Marianas questions
July 7, 2011 by offshoreenergy
Posted in accidents, drilling, offshore | Tagged accidents, evacuation, Ghana, list, Transocean Marianas | 1 Comment
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Bud's Offshore Energy (BOE) 
Structural failure underwater is very critical on these column supported design, since you cannot access and assess the changing shape of it under uncontrollable stresses. A start of a crack in main supporting ballast tank can evolve into catastrophy very quickly, not as simple as a slow leaking valve or a failure in controls. The Alexander Kjelland in Norway was typical of what a small crack can generate into a circumferential path and sheared one of the main truss and bracing member keeping the structure together, hence immediate loss.
See :http://www.oilcity.co.uk/home/article.asp?pageid=668
is a subject I have followed since 1969