Comments on: Offshore Rig Patent of 1869 https://aoghs.org/offshore-history/offshore-rig-patent/ Oil History is Energy Education Sat, 26 Apr 2025 10:12:25 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: AOGHS https://aoghs.org/offshore-history/offshore-rig-patent/#comment-4879 Thu, 07 May 2015 15:59:00 +0000 http://aoghs.org/?p=16319#comment-4879 In reply to Ove Johan Johansen.

Thank you for your comment, which makes a good point. Photos of the Troll platform are in the Offshore Petroleum HIstory article, http://aoghs.org/offshore-history/offshore-oil-history/

]]> By: Ove Johan Johansen https://aoghs.org/offshore-history/offshore-rig-patent/#comment-4878 Thu, 07 May 2015 06:13:00 +0000 http://aoghs.org/?p=16319#comment-4878 Regarding the overview over offshore installations there is one type that is missing, and that is the concrete constructions. There are quite a few in our waters which is the Norwegian Sea. And I’m sure there are in US waters aswell. I’ve added a link from Wikipedia http://en.wikipedia.org/wiki/Offshore_concrete_structure regarding concrete insatallations i general, but also an ilustration of the biggest of them all, the Troll palttform located in the North Sea, west of Bergen.http://thehelpfulengineer.com/wp-content/uploads/2011/04/huge-troll-a-oil-rig.jpg

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