PDC bit operating torque than the same WOB andlower strata conditions, reduce swelling drill buckle small size problems. Tricone rock bit of both the advantages and PDC drill bits, tricone bit more thanfor both strength and ductility are large formations, but also can be appliedto PDC bit difficult to deal with hard interlayer and other complex formation.
Accordance with theapplicable Industry Classification
1. Geologicalexploration with PDC drill
Mainly used ingeological prospecting exploration PDC drill for soft to medium-hard rock, somemanufacturers are now new research and development of new composite sheet canbe applied to ten hardness of rock.
2. Coalfield drillingusing PDC drill
It is mainly used incoal seam drilling on the excavation. Generally speaking relatively soft coalformations, PDC drill have been widely used, such as anchor bit, three-wingdrill and so on.
3. With PDC drill oilexploration
Mainly used in oiland gas drilling using the drill bit. At present, the oilfield PDC drill is allPDC drill inside the highest cost, requiring the highest. PDC can be said thenobility.