Water Well Thread Core RC Casing Tapered Oil Drill Rods for Rig

Water Well Drill Rods：For water well drilling; high strength/corrosion resistance; diameters 76-114mm, lengths 1.5-3m; materials like carbon steel/S135; fits PDC/rock/tricone bits; used in water well, mining, tunneling.

Drill Rod for Mining：For mining drilling; high wear resistance/strength/fatigue resistance; types like geological/spiral rods; used in exploration, extraction, roadway support.

Thread Drill Rod：Thread-connected; easy to assemble/disassemble; forms long drill string; used in oil drilling, geological exploration, water well drilling.

Tapered Drill Rod：High-strength alloy steel (23CrNi3Mo, 55SiMnMo); tapered shape for secure bit connection; used in mining, tunneling, quarries.

Drill Pipe Joint：Connects drill pipe parts; types NC/IF/FH/XH/REG; materials 40Cr/35CrMo/4137H; full inspection required; fits 2 3/8"-6 5/8" drill pipes.

Core Drill Pipe：For core drilling; high concentricity/tightness; gets complete core samples; used in geological exploration, mineral development.

RC Drill Pipe：Reverse circulation drilling; reversed fluid flow for fast cuttings removal; boosts efficiency, reduces bit wear; used in water well, foundation engineering.

Casing Pipe：Protects well walls; materials like seamless/ERW; grades API 5CT J55-N80-P110; connections BTC/STC/LTC; used in road drilling, water well, oil-gas pipelines.

Shank：Links drill rod to rig; specific shape/size for secure connection/power transmission; types tapered/threaded.

Tricone Drill Pipe：Actually a bit; 3 cones for impact/crushing/shearing; adapts to soft-medium-hard formations; used in oil/geological drilling.
Oil Drill Pipe： he "power transmission pipe" for oil drilling connects the drilling rig to the drill bit. It transmits torque and axial force, while also delivering drilling fluid to cool the drill bit and carry cuttings.