The following are some ways to determine the degree of wear on a PDC drill:
Check the wear of the cutting teeth, such as worn, chipped or missing tips.
Use a gauge to measure the height, thickness and other dimensions of the cutting teeth and compare them with the original dimensions.
If the drilling efficiency is significantly reduced, the drill bit may be severely worn.
An abnormal increase or decrease in torque and drilling pressure may be a sign of bit wear.
Observe the shape and size of the rock cuttings. Abnormal changes may reflect bit wear.
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