Downhole Drilling
Diamond and cemented carbide cutters and wear protection for oil and gas drill bits. Everything on this page has to survive high pressure, vibration, sand and slurry impact at the same time.
Industry Pain Points
- Nozzles washing out mid run, so jet velocity collapses and cuttings stop clearing.
- Inserts breaking out of the bit body before the bit itself is worn.
- Bit bodies eroding around the inserts and losing them one by one.
- PDC substrates failing under impact rather than wear.
What Buyers In This Sector Ask For
- Parts that hold their dimension under abrasive drilling fluid.
- Insert geometry that can be matched row by row to the formation.
- Threads and seats that fit existing bit bodies without modification.
- Substrate material supplied to the cutter maker's own design.
Typical Application Scenarios
PDC Bits
Nozzles flush, cool and lubricate the bit tips and clear stone chips from the well bottom with drilling fluid.
Roller Cone Bits
Cone roller bit nozzles plus chisel, sculptured, semi-ballistic and domed inserts.
Percussive Hammer Bits
Conical and parabolic inserts designed for tough drilling conditions.
Bit Body Protection
Flat and serrated inserts used to reduce wear on the steel surface.
Press Fracturing
Press fracturing nozzles for well stimulation work.
PDC Cutter Production
Substrate materials produced and supplied to specific customer design.
How A Project Runs
From the first enquiry to the packed carton.
- Step 01
Enquiry And Grade Advice
Send the drawing or the failed part. We come back with a grade and preform recommendation, usually within 24 hours.
- Step 02
Sample Or First Article
A sample or first article is agreed before the main batch is pressed.
- Step 03
Production
Milling, forming, sintering under pressure and finishing on our own line in Chengdu.
- Step 04
Inspection And Despatch
Density, hardness and dimensions checked, then out by FedEx, DHL, TNT, UPS or air cargo.
Delivery Capability
- Quotes in 24 hours or less.
- Competitive lead times and blanket order options for repeat sizes.
- Annual production of more than 100 tons on a dedicated hard alloy line.
- Every order sinter-HIPped.
- Parts supplied as sintered or precision ground.
- Exported to Germany, the United States, Russia, Australia and other countries.
Frequently Asked Questions
Which carbide products go into a drill bit?
Nozzles for flushing and cooling, inserts for cutting and for protecting the steel surface, and substrate material for PDC cutters.
Can you match an existing nozzle thread?
Yes. Cross groove, plum blossom, outer and internal hexagonal and Y-type three groove threads are all in the standard range, and we can work from a used nozzle.
How do I choose insert geometry?
By formation. Chisel and sculptured shapes cut faster in drillable ground, semi-ballistic and domed shapes cover mixed formations, and conical and parabolic shapes suit tough percussive work.
Do you make choke and flow control parts as well?
Yes, choke bean liners, seats, points and cages, all from grades developed for corrosive, abrasive and impacting service.
Related Reading
Talk To Someone Who Knows The Duty
Describe the ground, the fluid or the workpiece and what is failing now. Technical help with grade and preform design comes with the quotation.