The recent report doesn't entirely make sense.
They say the pipe is free of the casing wall.
If so, why can they not pull the remaining lost pipe in one trip.
There must be more cement holding the pipes at lower depths so the recovery rate will be unpredictable.
They had 10 days over Xmas and now they say it will be up to another 20 days (50 metres a day at the moment).
My guess is more.
Still holding.