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PDC Drill Bit 8-1/2 Inch 8 Blades Inlaid Diamond Drilling Tool
1 . Descriptions:
What does PDC mean in drilling Tool? Polycrystalline diamond materials, for use in polycrystalline diamond compact (PDC) bits, are one of the most important material advances for oil drilling tools in recent years. Fixed-head bits rotate as one piece and contain no separately moving parts.
All of our Drill bits are fit for API standard and used in the drilling Industry. The PDC drill bits size 3~22inch with 3~9Blades are available. And different classification cutter are optional according to your budget .
2. Specification:
Polycrystalline diamond compacts PDC bit in the Oil and Gas Industry PDC bits get their name from the polycrystalline diamond compacts used for their cutting structure. A PDC bit is a drill bit fitted with industrial diamond cutters instead of hardened metal teeth.
| SPECIFICATION | |
| Size : | 8inch (203.2mm) |
| Drill Body Type : | Matrix Body |
| Blades Quantity : | 8 |
| Nozzles Quantity : | 4 |
| API Connection (in) : | 4-1/2" REG |
| Gauge Length (In): | 2 |
| OPERATIONAL PARAMETERS | |
| Weight on Bit (KN): | 22 -112 |
| RPM Range(Rotary): | 80- DHM |
| Flow Rate(lps): | 28- 39 LPM |
| Make-Up Torque(KN): | 16 -22 KN.M |
3 . PDC Drill Bit profile
4 . Drill Bit PDC Cutters
Polycrystalline Diamond Composite (PDC) cutters are the main point of contact for a drill bit. PDC bits remove the rock mainly by shearing.
The PDC cutters are exposed to a lot of heating and cooling down the well, a very challenging environment.
PDC cutters that have lower thermal degradation and more thermal stability generally achieve higher ROP and increased wear resistance. So, optimizing the cutter is important.
5. PDC Drill Bit Nozzles
PDC Drill bit nozzles help clear the cutting area and cool the Polycrystalline Diamond Composite (PDC) cutters.
Effective placement of these nozzles along with the angle they are set at plays a critical role on how efficient the drill bit performs.
Fluid channels also complement nozzle placement to improve the clearing of cuttings.
6. Matrix Body PDC Bits
The main difference between matrix body and steel body PDC (Polycrystalline Diamond Compact) drill bits lies in their construction and material composition.
Matrix body PDC drill bits have a tungsten carbide matrix that holds the polycrystalline diamond cutters in place. The matrix material is typically made of powdered tungsten carbide mixed with a metal binder, such as cobalt. This matrix provides support and stability to the diamond cutters and helps distribute the drilling forces evenly.
On the other hand, steel body PDC drill bits have a steel body as the main component. The diamond cutters are usually fixed onto the steel body using a brazing process. Steel body PDC bits are generally more robust and better suited for drilling in harder formations.
The advantage of matrix body PDC drill bits is their versatility and adaptability to various drilling conditions. The tungsten carbide matrix can be customized to match the specific requirements of different formations, such as hardness, abrasiveness, and impact resistance. Matrix body bits are particularly effective in drilling through softer to medium-hard rock formations. They provide excellent performance in terms of durability, efficiency, and cost-effectiveness.
Additionally, matrix body PDC bits are known for their higher diamond exposure, which enables better cutting efficiency and increased rate of penetration (ROP) compared to steel body bits. The matrix design also allows for better heat dissipation during drilling, reducing the risk of heat-related issues and prolonging the bit's lifespan.
In summary, the key advantage of matrix body PDC drill bits is their adaptability to a wide range of formations, combined with excellent cutting efficiency, heat dissipation, and overall durability.
