Download PDF

Technical Specifications

 

9 7/8 FS50

 Diameter: 250.8mm (9 7/8")  
IADC Code: 637X  
Design number: UT543  
State standard designation: ТКЗ-ГАУ  
 

Specification
Gradient angle of axle journal 36°
Axle journal offset relative to drill bit axis 1.60 mm
Bearing type Journal bearing
Sealing Elastomer
Total number of inserts (inner/heel row) 170 (57/113)
Total number of insert rows (inner/heel row) 13 (10/3)
Number of changeable nozzles 3
Connecting thread З-152 (6 5/8 REG)
Drill bit net weight, kg 61.00
Drill bit gross weight, kg 63.40
 

Recommended Drilling Conditions
Rotation speed 180-40 rpm
Thrust load 10.00-20.00 t (22000 - 44000 lbs)
The lower level of rotation speed value corresponds the upper level of thrust load value and vice versa.
 

Purpose
 

Design Features








 

Views: 4740