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rotary air blast drilling

http://resource.geosciml.org/classifier/cgi/boreholedrillingmethod/RAB_drilling

alt label
RAB drilling more like this
down-the-hole drilling more like this
percussion rotary air blast more like this
notation 2.2 more like this
definition Percussion rotary air blast drilling (RAB) drilling is an 'open hole' rotary percussion drilling method where rock or sediment chips are derived by using a drag bit or pneumatic reciprocating piston-driven hammer, and the cuttings are blown up the outside of the drill rods by air, or a combination of air and foam, and collected at the surface. It is used most frequently in the mineral exploration industry. more like this
source https://en.wikipedia.org/wiki/Drilling_rig#Percussion_rotary_air_blast_drilling_.28RAB.29 more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/boreholedrillingmethod/percussion_drilling original
narrower RAB_drilling original
in scheme boreholedrillingmethod original
is primary topic of RAB_drilling