Relief wells near completion
I get a general feeling that people are thinking that nothing is happening at the well and that various attempts to stop the flow have failed.
Basically this is not true and people are not actually following the progress. Suggestions of nuking the well are basically just plain stupidity and
would cause an even worse environmental disaster in my opinion. I don't know what the strata were composed of in the Soviet 'nuking' (video on
other thread) but I believe this to be shale and this could introduce a major
instability. In addition to that the Soviet one(s) was on land, and we know nothing of the gas pressures in this Soviet well. Was it as huge as the BP
well.
Current relief well progress.
This is the current state of play. The first well seems to be paused waiting for the second to catch up.
Link to PDF of the above diagram
'Relief' wells are being drilled but these are
not, contrary to popular opinion, to relieve the pressure. The purpose of these two wells is
to intersect the main 'gusher' at a point just above where it leaves the oil bearing formation. 'Heavy' fluids will be pumped in at this point and
then concrete to seal the main shaft. The second is a backup to the first. You need to bear in mind these are about 3.4 miles from the sea surface!
Quite some undertaking.
Source page of PDF with details
It is getting close now. The second well is catching up and my guess is that by the end of the month or earlier they will be pumping heavy fluids.
They are also preparing to remove the broken pipe. (The riser)
© BP p.l.c.
Link to full size version.
The reason for the failure of 'top kill' is discussed
here
All I can say is that I sincerely hope that the weight of the column of heavy fluid when introduced from the bottom of the well shaft is sufficient to
stem the flow.
[edit on 2/7/2010 by PuterMan]
[edit on 2/7/2010 by PuterMan]
[edit on 2/7/2010 by PuterMan]