HAS Top Hat 10, the new cap that came to the rescue of BP’s wrecked well head last week, finally got the better of the gushing oil? That’s the top question for engineers who were crunching numbers from pressure tests as this article was finalised.
Tests on Top Hat 10 began on 15 July, when the cap was closed off and measurements of the pressure inside it began. If the cap is fully sealed, the engineers expect to see a pressure of between 55 and 60 megapascals, according to Thad Allen, the retired US Coast Guard admiral charged with managing…
