Wear and Degradation of Drilling Performance of Polycrystalline Diamond Compact Bit in Laboratory Test

Polycrystalline diamond compact (PDC) bits have been widely used in oil and gas well drilling recently also begun to be geothermal drilling. In the present study, performance wear of a PDC bit were assessed by laboratory tests. The correlation between progress some indexes rock abrasivity was discussed referring test results. rate penetration formulated as function weight on using results for other with same geometric design that study introducing parameter represents bit. found exponentially reduced volume polycrystalline layer. associated drilled type.