A Junk Shot is a method used to to kill a uncontrolled well in the event of a Blowout and a failed BOP.
In this situation, a specialist Well Control Team will be brought in. Using specialist tools, pieces of rubber debris are fired into the well in a bid to clog it. The debris typically consists of car tyres, golf balls and cord.
This method was unsuccessfully used in controlling the Deep Water Horizon incident in the Gulf Of Mexico 2010.