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Technical Specifications
6 3/4 M65
Diameter:
171.4mm (6 3/4")
IADC Code:
632Y
Design number:
T198
State standard designation:
ТКЗ-ПГВ
Specification
Gradient angle of axle journal
36°
Number of blades
0
Axle journal offset relative to drill bit axis
0.00 mm
Type of diamond inserts
Bearing type
Roller bearing
Total number of PDC inserts (cutting/gauge)
0 (0/0)
Sealing
None
Total number of PDC inserts for back reaming
0
Total number of inserts (inner/heel row)
0 (0/0)
Total number of inserts (inner/heel row)
99 (55/44)
Total number of antivibration inserts
0
Total number of insert rows (inner/heel row)
0 (0/0)
Total number of insert rows (inner/heel row)
10 (7/3)
Number of changeable nozzles
3
Number of changeable nozzles
3
Connecting thread
З-88 (3 1/2 REG)
Connecting thread
З-88 (3 1/2 REG)
Drill bit height, mm
0.0
Drill bit net weight, kg
19.00
Drill bit gross weight, kg
20.00
Recommended Drilling Conditions
Rotation speed
115-60 rpm
Thrust load
5.00-14.00 t (11000 - 30800 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 hard abrasive formations with hard streaks
Design Features
Side and bearing circulation of the borehole bottom with air and water mixture
The leg shirttail and entering edge are hardfaced with tungsten carbide.
The leg is protected with tungsten carbide inserts
Tungsten carbide inserts on cone gage.
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