The mud is going UP the BOP and out into the water through the riser. Thats bad. It's supposed to go the other way down the hole.
So that means they will have to try the "Junk Shot" to plug the riser. Then try the mud again later.
no you are wrong it supposed to come out the top instead of oil it is pushing the oil down where eventually the flow will slow down and the pressure will be stopped but it supposed to leak mud out the top for now because of the manmade pressure they are putting on the mud to force it down once it gets far enough down the well then they will let the pressure off the mud and the flow will slow down do to the weight of the mud and gravity .. but for now it supposed to blow out the end because of the man made pressure..on the heavy mud..
It goes both ways, down & out the cracks. What we don't know is how fast it's going down. When enough is down to hold the oil down, they switch to cement. Until then, mud out the top instead of oil is hopeful, not certain.