12-1/2inch 7 Blades Drill Bit Of Oilfield Drilling Tool
1. Description :
According to the International Association of Drilling Contractors (IADC), the Fixed-cutter bit classification composed of four characters that designate:
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
| SPECIFICATION | |
| Size : | 12 -1/2" (149.2mm) |
| Drill Body Type : | |
| Blades Quantity : | 7 |
| Nozzles Quantity : | 10 |
| API Connection (in) : | 6 -5/8" REG |
| Gauge Length (In): | 2.5 |
| OPERATIONAL PARAMETERS | |
| Weight on Bit (KN): | 50-160 |
| RPM Range(Rotary): | 50-500 |
| Flow Rate(lps): | 690-950 |
| Make-Up Torque(KN): | 25-40 |
3. Bit Profile
4. Drill Bit PDC Cutters
Polycrystalond Composite (PDC) cutters are the main point of 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 . Drill Bit Nozzles
Drill bit nozzles help clear the cutting area and cool the Polycrystalond 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. an>
hard, rather brittle complex material containing tungsten carbide grains bonded with a softer, tougher, metallic binder.
The hardness of a has the benefit of not being susceptible to abrasion and erosion. It is effective in tolerating high compressive loads, but, compared with steel, has low resistance to impact loading.
bits are relatively diverse, because ounded material.
In environments in which body erosion is likely to cause a bit to fail, are the preference over steel-body bits. For diamond-impregnated bits, only truction can be used.
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