Use PDC often encounter problems have

PDC uses a long time, it is inevitable there will be all kinds of problems, is likely to cause the entire process can not go smoothly. In fact, if we can pay attention to in the course of some of the details, or you can greatly reduce the incidence of this kind of thing. First let us look at using the PDC has often encounter problems which will  abrasive grinding  abnormal wear pants body, macro rupture, sealing off other things. In fact, these may be some wear and tear or rupture control. For macroscopic fracture, mainly for the breakdown of the diamond layer. Cause  Polycrystalline diamond  during drilling bit hard rock or rock lithology variations when compared reached by alternating larger impact towards the cutting teeth and result in a short time withstand drill scrapped. According to rig  Abrasive grinding wheel  options to match PDC bits, drill pressure remained stable during the drilling process, drilling speed, try to avoid a big impact; material manufacturing processes to improve adhesion between the layers, to improve the thermal expansion coefficient between materials matched to minimize stress.