Fox News has a story about the U.S. Coast Guard giving the go ahead to BP for "top kill", and the story gives much information about what happened
Here is an excerpt from the article.
The oil giant's chief executive earlier gave the procedure a 60 to 70 percent chance of working, and President Barack Obama cautioned Wednesday
there were "no guarantees."
This actually means there is a 40-50% rate of success if not less.
Witness statements obtained by The Associated Press show senior managers complained BP was "taking shortcuts"
the day of the explosion by replacing heavy drilling fluid with saltwater in the well that blew out.
You see, normally the mud engineer of the rig is the one that decides how thick the mud, or drilling fluid must be, and he makes this decision based
on the formation being drilled, and the downhole pressure, meanwhile causing the least damage to the producing formation as it is being drilled.
The mud engineer is the person that knows best how thick the drilling fluid (mud) has to be, but in this case and in some others, the company man who
really normally doesn't have the knowledge and, or the experience of the mud engineer decided that he knew better.
Normally the company man only has the experience of having worked for years, or even decades as a roghneck, a toolpusher, and or possibly as a
driller, but many of them don't have the knowledge and experience of the mud engineer, yet I have dealt with, and known company men who think they
know everything when they don't.
Any experienced crew of an oil rig will tell you that even after years of working oil rigs they don't know everything and you get to learn new
things, and experience problems which are new even to the most experienced crew.
Anyway, the reason why this company man wanted to take shortcuts is because company men get bonuses if a well is completed before schedule, and they
get BIG bonuses...
Anyway, let's keep reading.
"I overheard upper management talking saying that BP was taking shortcuts by displacing the well with saltwater instead of mud without
sealing the well with cement plugs, this is why it blew out," Crawford said in his statement. BP declined to comment.
The statements show workers talked just minutes before the blowout about pressure problems in the well. At first, nobody seemed too worried: The chief
mate for Transocean left two crew members to deal with the issue on their own.
What began as a routine pressure problem, however, suddenly turned to panic. The workers called bosses to report a situation, with assistant driller
Stephen Curtis telling one senior operator that the well was "coming in." Someone told well site leader Donald Vidrine that they were "getting mud
back." The toolpusher, Jason Anderson, tried to shut down the well.
It didn't work. Both Curtis and Anderson died in the explosion.
At a hearing in New Orleans on Wednesday, Douglas Brown, the Deepwater Horizons chief mechanic, testified about what he described as a
"skirmish" between someone he called the "company man" -- a BP official -- and
three other employees during a meeting the day of the explosion.
This company man should be jaiiled, and fined for what he did...