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Technical Specifications

 

9 5/8 M70

 Diameter: 244.5mm (9 5/8")  
IADC Code: 722Y  
Design number: T396M  
State standard designation: К-ПГВ  
 

Specification
Gradient angle of axle journal 36°
Axle journal offset relative to drill bit axis 0.50 mm
Bearing type Roller bearing
Sealing None
Total number of inserts (inner/heel row) 158 (100/58)
Total number of insert rows (inner/heel row) 13 (10/3)
Number of changeable nozzles 3
Connecting thread З-121 ук. (-)
Drill bit net weight, kg 51.00
Drill bit gross weight, kg 52.50
 

Recommended Drilling Conditions
Rotation speed 115-60 rpm
Thrust load 11.00-22.00 t (24200 - 48400 lbs)
The lower level of rotation speed value corresponds the upper level of thrust load value and vice versa.
 

Purpose
 

Design Features








 

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