The results revealed the changing laws of the velocity of waste plastics particles and gas, the volume fraction of the waste plastics along the pipe range in the course of pneumatic conveying.

If the rate is at the low end of the range and was lower still before a key pipe on top of the blowout preventer was cut to accommodate the top hat, about half as much oil has been spilled so far.

"Given that uncertainty, the amount of material spewing from the pipe could range from 56, 000 barrels to 84, 000 barrels a day." UK.