Download PDF

Technical Specifications

 

11 5/8 RS35

 Diameter: 295.3mm (11 5/8")  
IADC Code: 545X  
Design number: UT59  
State standard designation: СЗ-ГВУ  
 

Specification
Gradient angle of axle journal 36°
Axle journal offset relative to drill bit axis 3.18 mm
Bearing type Roller bearing
Sealing Elastomer
Total number of inserts (inner/heel row) 159 (111/48)
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 83.70
Drill bit gross weight, kg 86.50
 

Recommended Drilling Conditions
Rotation speed 300-40 rpm
Thrust load 6.00-21.00 t (13200 - 46200 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
Lateral flushing. 3 hydromonitor nozzles

Leg shirttail is protected with tungsten carbides

Carbide inserts on the reverse cone of the cones
 

Views: 9229