Apply torque in string when jarring down ?

I am currently updating at Stuck Pipe Manual.

I have noticed that most manuals says: "Apply torque to string when jarring down. Do not apply torque when jarring up.

Anybody can come up with an explanation when to apply torque when jaaring down and not up.

Current surgestions are;

Due to stabilizer will pull BHA down with torque, good when jarring down and bad when jarring up.

Due to it will help (rotate) freeing the string from the wall.

Thanks,

Soren
5 Answer(s)

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Posted by

Soren Hartmann

Soren Hartmann

Operation Optimisation, No Cureā€“No Pay, Performance Optimisation and Knowledge Management Specialist | Drilling Training | Facilitator | Senior Drilling Supervisor & Project Manager

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Discussions: 4

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