Drilling Industry Glossary
hardbanding
helical buckling
helical lockup
high gravity solids
hole
hook
hook load
horizon
horizontal drilling
HSI
HTHP cake thickness
HTHP filtrate
hydrocarbons
hydrostatic pressure
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.
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