PDC Diamond Bore Bit 17-1/2 Inch API Spec for Oilfield Drilling Tool

1 . Descriptions:

PDC drill bits excel in efficiently drilling through sedimentary rock formations such as shale, sandstone, dolomite, and limestone. They employ a cutting technique that involves shearing or scraping to effectively penetrate the rock.

Renowned for their remarkable stiffness, PDC bits are manufactured by combining synthetic diamond layers with a carbide substrate under extreme temperature and pressure conditions. This manufacturing method guarantees their durability and reliability even in the most challenging drilling operations.

2. Specification:

3 . PDC Bit of profile

4 . PDC Drill Bit Cutters

Polycrystalline Diamond Composite (PDC) cutters are the main point of contact for a drill bit. PDC drill 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.

Accorrding to the Api ,the cutter size are as below :

1 indicates PDC cutters > 24 mm in diameter.

2 represents cutters from 14 to 24 mm in diameter.

3 indicates PDC cutters < 14 but > 8 mm. 4 is used for cutters < 8 mm.

5. PDC 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 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.