Well Control - Circulating heavy mud (bit off bottom)
A non standard well control method is to attempt to bring the well under control by circulating heavy mud to overbalance the surface pressures. The theory behind this method is that the well can then be opened and the string run deeper. This method is not reliable since there is no proper control of bottom hole pressures during circulation, nor during running the string back to bottom.
The well may kick again due to the loss of hydrostatic head caused by the following phenomena:
- While running . . .