Drill bit Parameters
Tri-cone bit type
11 5/8'' 137
API Pin Connection
6 5/8'' API REG
Soft to medium soft with low compressive strength or soft with harder stringers, such hard gypsolyte, soft limestone and sandstone, etc.
It features long service life, good suitability, excellent gage protection and high drilling efficiency, etc. under medium to low WOB and higher RPM conditions, which results in higher cost-effectiveness.
Note: the upper limits for the bit weight and rotary speed recommend in the table can not be used at the same time.