Press Briefing by National Incident Commander Thad Allen, September 8, 2010 at 11:30 a.m. EDT:
Admiral Allen: Well, I will give you a range. Based on the planning that's going on in Houston right now, the review of the science teams, there are two windows depending on how many, how much diagnostics is going to be done in the well. The early window is around the 18th of September to start the two-phase process. The later window starts on the 28th of September, and the difference in those two timelines is the amount of time they want to allow for diagnostics and fishing in the well.
Question: And then how long will that process take to complete, to actually kill the well?
Admiral Allen: The two-phase step should take about a week.