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API Spec Diamond Drilling Tool 13-1/4 " Oil Rock PDC Drill Bit
1 . Descriptions:
When choosing a PDC drill bit, it is crucial to evaluate the formation beforehand. For hard formations, opting for a PDC drill bit is a wise decision as it can enhance cutter performance and save costs. However, for soft formations, alternative drill bits should be considered. It's important to note that PDC drill bits generally have a higher price compared to tricone or hammer bits due to their composition of tungsten carbide and diamond materials. Therefore, it is essential to have a good understanding of PDC drill bits before making a selection.
The performance of a PDC drill bit depends on various factors, including:
Considering these factors and evaluating the specific formation characteristics, operators can make informed decisions
2. PDC Drill Bit Specification
All PDC drill bit sepcification ,the chart provides a visual representation of how drill bit specifications can be tailored for the formation types .
| SPECIFICATION | |
| Size : | 13 - 1/4 "(91.88mm) |
| Drill Body Type : | Steel Body |
| Blades Quantity : | 5 |
| Nozzles Quantity : | 11 |
| API Connection (in) : | 6-5/8" REG |
| Gauge Length (In): | 5 |
| OPERATIONAL PARAMETERS | |
| Weight on Bit (KN): | 67-200 |
| RPM Range(Rotary): | 100 - DHM |
| Flow Rate(lps): | 57 - 75 LPM |
| Make-Up Torque(KN): | 81 -92 KN.M |
3 . PDC Bit profile
4 . PDC Drill Bit Cutters
To achieve higher rates of penetration (ROP) and improved wear resistance, it is crucial to optimize the design and characteristics of the PDC cutters. PDC cutters with lower thermal degradation and greater thermal stability tend to deliver superior performance. These properties enable the cutters to withstand the extreme temperature fluctuations encountered during drilling operations.
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 and manufacutre process
Steel body of PDC Drill Bit is the opposite of matrix body of PDC Drill Bit . 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.
