Suzhou Energy Tool Co., Ltd.
Suzhou Energy Tool Co., Ltd.
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Diamond Down Hole Drilling Bit 17 inch S716 PDC Drill Bit of Oilfield
1 . Descriptions:
Drill bits play a vital role in the oil and gas industry, enabling the exploration and extraction of hydrocarbons like crude oil and natural gas. These specialized tools are designed to create cylindrical wellbores in the earth's crust using the rotary drilling method.
Among the various drill bit options, the PDC (Polycrystalline Diamond Composite) drill bit stands out as a high-performance choice. Unlike conventional drill bits made of materials like tungsten carbide, PDC drill bits incorporate Polycrystalline Diamond Composite, which offers exceptional erosion and abrasion resistance.
The integration of Polycrystalline Diamond Composite in PDC drill bits significantly enhances their overall performance, durability, and lifespan. These drill bits excel in harsh drilling conditions, effectively withstanding wear and tear caused by the drilling process. Their superior resistance to erosion ensures prolonged operational efficiency, reducing the need for frequent replacements.
PDC drill bits are engineered to endure demanding drilling operations, including the penetration of various rock formations encountered during exploration and extraction activities. Their robust construction, combined with the advanced properties of Polycrystalline Diamond Composite, allows for efficient and reliable drilling performance.
By considering these factors as below , the IADC classification system helps in selecting the most suitable fixed-cutter bit for a given drilling application. It ensures that drill bits are matched to the specific requirements of the wellbore and the geological formations being drilled
2. Specification:
|
SPECIFICATION
| |
| Size : | 17"(431.6 mm) |
| Drill Body Type : | Steel Body |
| Blades Quantity : | 7 |
| Nozzles Quantity : | 10 |
| API Connection (in) : | 7-5/8" REG |
| Gauge Length (In): | 2.5 |
|
OPERATIONAL PARAMETERS
| |
| Weight on Bit (KN): | 67-200 KN |
| RPM Range(Rotary): | 100 - DHM |
| Flow Rate(lps): | 57 - 75 LPM |
| Make-Up Torque(KN): | 82 - 91KN.M |
3 . PDC Bit Profile
4 . Drill Bit PDC Cutters
The primary contact point of a drill bit is the Polycrystalline Diamond Composite (PDC) cutters. PDC bits excel at removing rock formations primarily through shearing action.
Operating in the wellbore exposes the PDC cutters to extreme heating and cooling cycles, creating a highly challenging environment. This thermal stress necessitates the use of PDC cutters with lower thermal degradation and enhanced thermal stability to ensure optimal performance.
By optimizing the design and composition of the PDC cutters, higher rates of penetration (ROP) and increased wear resistance can be achieved. Cutters with improved thermal properties can withstand the demanding conditions encountered during drilling operations, leading to enhanced drilling efficiency and extended cutter lifespan.
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 improve the clearing of cuttings.
6. Steel Body PDC Bits
Steel body 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.