Types of Drill Bits - PDC, Tricones, Drag Bits,
2019-2-2 · power plant capacity, reduction of drilling cost of geothermal wells is one of important factors. Specifically, it is an urgent issue to develop drilling bit with higher drilling efficiency and durability. Recently, PDC (Polycrystalline Diamond Compact) bits have been rapidly spread in the drilling wells for oil and gas, replacing
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