That’s not the ultimate fix. That “might” slow the flow...that won’t stop it.
The only real fix is to plug the well where Halliburtion tried to set the down hole plug.
A relief well ALWAYS works. Can you give one time in history when it has not?
How a relief well works
http://www.bp.com/genericarticle.do?categoryId=9033657&contentId=7061734
The only problem with the relief well is the time it takes to complete.