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Drilling Industry Glossary

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Helical Buckling

A more extreme form of buckling that occurs when compressive forces pass through sinusoidal buckling and exceed the helical buckling limit. Helical buckling causes contact between the pipe and the wellbore, exerting force on the wall of the hole. Both drill string fatigue and interference with weight transfer to the bit occur. Helical buckling should be avoided.

Helical Buckling | Drilling Glossary Illustration

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