The Definition of PDC Cutters

Because the shearing action of PDC cutters are more efficient than the crushing action of a button or tooth bit, fixed cutters are in high demand. In 1982, PDC drill bits accounted for only 2% of total footage drilled. In 2010, 65% of total footage drilled was by PDCs.

APPLICATIONS

The diamond drill bit is used in nearly all applications including geothermal energy drilling, mining, water well and natural gas drilling and oil well drilling. Total depths range from 100' to 20,000'. PDC drill bits are used extensively in the natural gas drilling.

LIMITATIONS

Impact damage, heat damage and abrasive wear all inhibit a drill bit's performance and can occur in even the softest geological formations. However, the most difficult formation for a PDC bit to drill are extremely abrasive ones.

With PDC popularity on the rise, bit manufacturing companies are seeking new materials and design aspects to make a tougher bit without compromising ROP.