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Technical Specifications

 

13 3/4 R35

 Diameter: 349.2mm (13 3/4")  
IADC Code: 543Y  
Design number: UT48  
State standard designation: СЗ-ГВ  
 

Specification
Gradient angle of axle journal 36°
Axle journal offset relative to drill bit axis 5.00 mm
Bearing type Roller bearing
Sealing None
Total number of inserts (inner/heel row) 185 (129/56)
Total number of insert rows (inner/heel row) 14 (11/3)
Number of changeable nozzles 3
Connecting thread З-152 (6 5/8 REG)
Drill bit net weight, kg 120.00
Drill bit gross weight, kg 122.40
 

Recommended Drilling Conditions
Rotation speed 600-40 rpm
Thrust load 5.00-24.00 t (11000 - 52800 lbs)
The lower level of rotation speed value corresponds the upper level of thrust load value and vice versa.
 

Purpose
The drill bit is designed for drilling medium hard abrasive formations
 

Design Features








 

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