Well – we tried hard – but sadly could not get our helical jam solution in front of BP (at the right level).
It is interesting how things have panned out ……… In the end BP used a process a little akin to part of our suggestion – but without the helical jam.
BP removed the flange via loosening the 6 large bolts and then inserted a connector device which was inserted INTO the oil flow…. Here at Puku we have been saying this could be done but a lot of people said – “no no no – can’t do” – because of the high pressure and flow, or the debris within the pipe ( ie the remnant drill pipe and casing).
That aside – it is amazing how long it took to turn off a big tap .