Transformation of old wells for oilfield undertaken a research work

Transformation of old wells for oilfield undertaken a research work. Reaming drill bit for the current existing problems, this paper refer to the relevant provisions of the manual drilling,  Synthetic diamond  the existing design methods and oilfield drill specific geological conditions, the proposed drilling reaming or drilling reaming after a under conditions suitable for the job slimhole adjustable PDC drill bits, drill bits and PDC adjustable hydraulic characteristics,  polycrystalline diamond  field, the form of distribution of the teeth mechanical properties of drill and many other areas were analyzed. Reducing PDC drill bits hydraulic structures related to work performance quality and length of life.