China supply RC rod reverse circulation water well drill pipe

RC Drilling rod for air reverse circulation (RC) drilling in mining exploration purpose,O.D. Available: 89mm, 102mm,108mm,114mm (3-1/2", 4", 4-1/4", 4-1/2") Length: 1.5mm, 3.0mm, 6.0mm

High pressure air transported into somewhere of the well along with air pip, via mixer to inject the high-pressure air into the pipe with liquid, due to the density of mixed liquor lower than flushing liquor therefore a differential pressure occurred between pipe and sample tube that to make the mixed air and liquid flow up fleetly by the fluid column pressure and take the rock debris pr powder out to the ground from bottom of the hole continuously. By this drilling method will provide with advantages like high penetration rate, quality pore-forming and fewer hole collapse urig drilling in loose formation.

Technical Parameters of DTH Drill Pipe (Outer Flat Drill Rod):

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