You want to get that mud out of the hole . And if your well is deep enough the water will keep it killed but if the pressure is high your going to have weight up some. Your going to have to get the guns out of the hole and run tubing back in. there's a lot to it . And all my work has been off shore and getting water is no problem. On land is something else. You remember the macodo blow out they were clearing the mud out of the with water . They were putting lets say 1000bbls a day rate down the hole and they started getting 1500bbls back that ment the well was coming at them they should have stopped and started putting mud back in the hole but nooooo.