Mechanical Sticking (cause of stuck pipe)

Mechanical Sticking (cause of stuck pipe)

Mechanical sticking occurs as a result of one or more of the following 8 conditions:

1. inadequate hole cleaning

2. formation instability

3. key seating (not often a problem but has happened…

Differential Sticking (Cause of Stuck Pipe)

Differential Sticking (Cause of Stuck Pipe)

In normal overbalanced drilling conditions, a pressure differential exists between the mud column and the formation pressure. In situations where the formation pressure is significantly lower than…