The conventional method of relief wells will succeed. If highly unusual circumstances arise, and the two relief wells must be abandoned, BP will keep drilling more wells until the oil well is capped. Sometimes there is stuck drill pipe in the well, and then the well may be sidetracked to continue drilling. Some wells after flowing for long periods of time, "bridge over" meaning that rocks and sand entering the wellbore eventually form a plug.
The oil spill occured in Summer, 2010.
Montara oil spill happened in 2009.
Mingbulak oil spill happened in 1992.
Enbridge oil spill happened in 2010.
Rena oil spill happened in 2011.
Greenpoint oil spill happened in 1978.
Prestige oil spill happened in 2002.
you can't. An oil spill can happen anytime, anywhere, be it by accident or on purpose.
West Cork oil spill happened in 2009.
Sea Empress oil spill happened in 1996.
Gulf War oil spill happened in 1991.
Katina P oil spill happened in 1992.