Kick in drilling rig

If the fluid level in the hole falls as the pipe is removed, the bottom hole pressure will be reduced. A kick may occur if the magnitude of the reduction exceeds the trip margin or safety overbalance factor. The hol. [pdf]

Drilling rig kick

If the fluid level in the hole falls as the pipe is removed, the bottom hole pressure will be reduced. A kick may occur if the magnitude of the reduction exceeds the trip margin or safety overbalance factor. The hol. [pdf]