MULTI-SECTIONAL PERCUSSIVE DRILL BIT ASSEMBLY

A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in trav...

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Bibliographic Details
Main Authors WALKER, THOMAS A, MEANS, STEPHEN R, SMITH, RICHARD K., JR
Format Patent
LanguageEnglish
French
Published 29.11.2011
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in travel by means of retaining members. L'invention concerne un ensemble trépan de forage à percussion à plusieurs sections à des fins de forage de trous dans une formation terrestre principalement utilisé avec un dispositif à percussion pneumatique. L'ensemble trépan de forage est constitué d'un trépan à dépose rapide entraîné par rotation par une structure de type à tenon et poche et limité axialement au niveau dans sa course par des d'organes de retenue.
Bibliography:Application Number: CA20062655142