Freeing Differentially Stuck Pipe
The pipe shall immediately be pulled to the maximum safe pull specified for the assembly and jarring shall commence.
If pulling and jarring are not immediately successful, the pipe shall be slugged and right-hand torque applied in an attempt to free the pipe.
Note: The pipe shall continue to be worked and circulation continued while preparing the pipe free pill.
A pipe free pill shall be spotted at the stuck point as soon as possible after initial attempts to mechanically free the pipe . . .