Changsha Drilling Machinery CO., LTD
Changsha Drilling Machinery CO., LTD
Add to Cart
PDC bits (polycrystalline diamond composite bits)
Description
This kind of PDC bits (polycrystalline diamond composite bits) is specially used in drilling a variety of strata (formations) under 6thgrade. Due to its good impact resistance, high efficiency and long lifespan, the PDC bits can be used to handle a wide range of complex-shaped formations (strata)
The PDC bits fail into two types: steel body type and matrix type.
The steel body type means that the polycrystalline diamond composite sheet is welded onto the steel body by the silver soldering process, and it is quite applicable to drill bits with simple structures. The matrix type is the type that the polycrystalline diamond composite sheet is welded onto the powder matrix, and it is very suitable for drill bits with complex structure.
The bits can be divided into coring type and non-coring type. This kind of bits not only has the same hardness and wear-resistance as the diamond, but also has tungsten carbide supporter to strengthen its abrasion resistance and impact resistance
Technical parameter:
1): wireline PDC bits
Specification | Outer diameter | Inner diameter | Thread length |
Φ56 | 56 | 35 | 40 |
Φ59 | 59.5 | 36 | 40 |
Φ75 | 75 | 49 | 40 |
Φ95 | 95 | 64 | 40 |
2): single-tube PDC bits
Specification | Outer diameter | Inner diameter | Thread length |
Φ56 | 56 | 39 | 30 |
Φ59 | 59.5 | 41.5 | 30 |
Φ75 | 75 | 54.5 | 40 |
Φ91 | 91 | 73 | 40 |
Φ110 | 110 | 89 | 40 |
Φ130 | 131 | 113 | 40 |
Φ150 | 150 | 132 | 40 |
3): double-tube PDC bits
Specification | Outer diameter | Inner diameter | Thread length |
Φ56 | 56 | 39 | 30 |
Φ59 | 59.5 | 41.5 | 30 |
Φ75 | 75 | 54.5 | 30 |
Φ91 | 91 | 68 | 30 |
Φ110 | 110 | 79 | 40 |
Φ130 | 130 | 97.5 | 40 |