Air Rotary Drilling
is an ideal drilling method to drill in medium to
hard-consolidated formations when the introduction of
foreign substances such as mud is not permitted.
Advantages
of Air Rotary Drilling:
Air system efficiently
removes drill cuttings keeping borehole open
Ability to drill in
excess of 800'
Increased penetration
rates
No drilling fluids to
dispose of
This method utilizes air as
a circulating medium to; cool the drill bit, bring drill
cuttings to the surface and maintain borehole integrity.
When drilling with a conventional air rotary system, the
cuttings are removed from the borehole using high annular
pressure created by an air compressor at the surface. The
air that is circulated also acts to cool the drill bit as
it circulates from inside the drill rod and out and around
the bit.
