Shell launches bid to leave massive, sludgy oil rig remnants in North Sea for 500 years

‘Oil giant Shell is to launch a bid to leave the 10 vast concrete legs of three oil rigs standing in the North Sea for up to 500 years after the platforms have been decommissioned.
The company’s proposals also include the controversial suggestion that oil mixed with sediment in 42 out of 64 concrete storage cells – each up to 20 metres in diameter and 60 metres high, taller than Nelson’s Column – should remain on the sea bed.
The decommissioning of the historic Brent field, created during the 1970s boom, represents the Government’s first big decision on what will happen to the main North Sea installations as they stop producing oil.’
Read more: Shell launches bid to leave massive, sludgy oil rig remnants in North Sea for 500 years