The polycrystalline diamond compact drill bit is a composite sheet with a circular shape that is inlaid and welded on a cylindrical cutting tool, and the cutting tool is mounted on the drill body to become a PDC drill.
Polycrystalline diamond compact drill bits are mainly divided into three categories
1. Composite drill bits for geological exploration
The composite drill bit is mainly used for geological exploration and exploration, and is suitable for soft to medium-hard rock formations. Now some manufacturers have newly developed a new type of composite drill bit that can be applied to rock formations with ten grades of hardness.
2. Coalfield drilling adopts composite drill bit
It is mainly used for drilling and mining of upper coal seams in coal mines. Generally speaking, the rock formations of coal fields are relatively soft, and composite drill bits are widely used, such as anchor drill bits, three-wing drill bits, etc.
3. Composite drill bits for oil exploration
Drill bits are mainly used in drilling in oil and gas fields. At present, the composite drill bit for oil field is the most expensive and demanding among all the composite drill bits.