Rock Drilling Bit 8-1/2 Inch PDC Bit of API Spec
1 . Descriptions:
Diamond PDC bit is the harness the power of "Polycrystalline
Diamond Compact" (PDC) technology. This advanced diamond material
revolutionizes the efficiency and longevity of drill bits in oil
drilling operations.
The S616 PDC drilling bit exemplifies excellence as a fixed-head
tool that operates seamlessly as a unified entity, guaranteeing
unwavering and dependable performance throughout drilling
endeavors.
In the selection of a PDC drill bit, key considerations such as
cutter density, size, bit profile, and blade type are pivotal
factors that influence performance across diverse drilling
conditions.
Our range of PDC bits adheres rigorously to API standards, ensuring
seamless compatibility with drilling operations. These bits are
available in sizes ranging from 3 to 22 inches with 3 to 9 blades,
offering various cutter classifications tailored to specific needs
and budgets.
2. Specification:
PDC bits such as the S616 or M616 are specified with a 6-blade
steel or matrix body and a 16mm main cutter. The IADC code
indicates whether the bit is suitable for hard, soft or specific
profile formations, providing additional insight.
So the IADC 323 have different mean of the PDC drill bit.
| SPECIFICATION |
| Size : | 8-1/2inch (215.9mm) |
| Drill Body Type : | Steel Body |
| Blades Quantity : | 6 |
| Nozzles Quantity : | 6 |
| API Connection (in) : | 4-1/2" REG |
| Gauge Length (In): | 2 |
| OPERATIONAL PARAMETERS |
| Weight on Bit (KN): | 22-112 |
| RPM Range(Rotary): | 100- DHM |
| Flow Rate(lps): | 28-38 LPM |
| Make-Up Torque(KN): | 16-22 KN.M |
3 . PDC Drill Bit profile
4 . Drill Bit PDC Cutters
At the heart of a drill bit are polycrystalline diamond composite
(PDC) cutters, which engage directly with the rock, using primarily
shearing action for removal. In the demanding environment of a
well, PDC cutters undergo frequent heating and cooling cycles,
which pose significant challenges.
PDC cutters with improved thermal stability and reduced thermal
degradation tend to perform better, resulting in higher rates of
penetration (ROP) and improved wear resistance. Optimising these
cutters is therefore critical to maximising effiency.
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. Steel Body PDC Bits
Steel body of PDC Bit is the opposite of matrix body. It can of
withstanding high impact loads, but is softer and lacks protective
features. The strength and ductility of steel give steel-bit bodies
high impact resistance.
Steel bodies are considerably stronger than matrix bodies.
A beneficial feature of steel bits is that they can easily be
rebuilt a number of times because worn or damaged cutters can be
replaced rather easily. This is a particular advantage for
operators in low-cost drilling environments.
Polycrystalline diamond compact (PDC) drill bits are different than
roller cones in that they are one piece bodies with no moving
parts. The fixed-cutters shred the rock, so the bit is able to
operate with higher rotation speeds more efficiently in
consolidated formations.
