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Technical Specifications
11 5/8 FS3
Diameter:
295.3mm (11 5/8")
IADC Code:
137
Design number:
UT276
State standard designation:
МС-ЦГАУ
Specification
Gradient angle of axle journal
33°
Number of blades
0
Axle journal offset relative to drill bit axis
79.00 mm
Type of diamond inserts
Bearing type
Journal bearing
Total number of PDC inserts (cutting/gauge)
0 (0/0)
Sealing
Elastomer
Total number of PDC inserts for back reaming
0
Total number of inserts (inner/heel row)
88 (43/45)
Total number of inserts (inner/heel row)
0 (0/0)
Total number of antivibration inserts
0
Total number of insert rows (inner/heel row)
8 (5/3)
Total number of insert rows (inner/heel row)
0 (0/0)
Number of changeable nozzles
4
Number of changeable nozzles
4
Connecting thread
З-152 (6 5/8 REG)
Connecting thread
З-152 (6 5/8 REG)
Drill bit height, mm
0.0
Drill bit net weight, kg
78.50
Drill bit gross weight, kg
81.30
Recommended Drilling Conditions
Rotation speed
180-40 rpm
Thrust load
10.00-24.00 t (22000 - 52800 lbs)
Drilling fluid consumption
0.00-0.00 l/s
Recommended make-up torque
0.00-0.00 kNm
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 soft formations with medium hard streaks
Design Features
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