Oil PDC Bit 17-1/2 Inch Diamond Drilling Tool Of API Spec
1 . Descriptions:
PDC drill bits are efficient tools used for rock drilling. With a
compact external structure typically composed of multiple
polycrystalline diamond compact (PDC) cutters, they exhibit high
hardness and wear resistance. Widely employed in areas like oil
drilling and geological exploration, PDC drill bits enable rapid
and precise drilling through various geological formations.
Renowned for their excellent performance, they boast high
efficiency, strong stability, and long service life, excelling in
complex geological conditions. PDC drill bits are indispensable
tools in modern drilling applications
PDC bits are specifically engineered for high-speed drilling in
shale, limestone, and sandstone formations. Diverging from roller
cones, these polycrystalline diamond compact (PDC) drill bits are
solid bodies without any movable components. The fixed-cutters
efficiently scrape away the rock, enabling more efficient operation
at higher rotation speeds, particularly in consolidated formations.
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.
| BIT DESIGN |
| size | 17-1/2inch |
| IADC Code | S333 |
| Body type | Steel Body |
| Blade Count | 7 |
| Primary Cutter Size | Ф16 mm |
| Gage Cutter | Ф16 mm |
| Nozzles | #10*5 |
| Gauge Length | 3.5" in |
| API Connection | 7-5/8REG |
| Weight | 228KG |
| OPERATIONAL PARAMETERS |
| Weight on Bit (KN): | 66-198 |
| RPM Range(Rotary): | 100- DHM |
| Flow Rate(lps): | 28- 39 LPM |
| Make-Up Torque(KN): | 900-1200KN.M |
3 . Tricone 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. Drill Bit Nozzles
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 imp
