Stuck Drill String
Stuck Drill String
(OP)
I am searching for some guideline calculations for jarring oand freeing stuck pipe?
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RE: Stuck Drill String
We had to shear a tubing anchor once and had to pull over the string weight, but that should be your guide as to how much stress the threads can handle.
RE: Stuck Drill String
RE: Stuck Drill String
Also, Fearnley Proctor in Aberdeen run an excellent course all about stuck pipe for both the office and the rig site team- different ways of getting stuck, how to avoid them, what to do about it (ie slump & torque is good for differential sticking but not so good for a pack off!)
http://www.fearnleyproctergroup.com/
RE: Stuck Drill String
Sometimes an intensive, pulsating flushing helps. One of the ways is to deflate nitrogen (from pressure compensators).