Drilling (original) (raw)
Step change in drilling rate (2-4x)
Extremely low WOB (less than 1000 lbs)
Extremely low torque
Longer bit life
Lower drilling cost per foot
Conventional mechanical drill bits cut softer rocks with stresses created by rotating a cutting surface with high weight-on-bit (WOB). Unfortunately, ultra-hard (i.e. high compressive strength) rocks inherently do not yield efficiently to even the most advanced mechanical cutters. The resulting slow drilling and short bit lifetimes result in poor performance and high expense.