"DK "DBF"" LLC
Main
News
Products
Drilling tool for oil industry
Tungsten carbide insert bit
Steel tooth bit
Drilling tool for mining industry
Tungsten carbide insert bit
Steel tooth bit
PDC Bits
Drilling accessories
Tenders
Sales
About company
History
Quality management
Quality Policy
Certificates and Licenses
Contacts
Download PDF
Technical Specifications
9 7/8 M85
Diameter:
250.8mm (9 7/8")
IADC Code:
832Z
Design number:
T401M
State standard designation:
ОК-ПГВ
Specification
Gradient angle of axle journal
38°
Number of blades
0
Axle journal offset relative to drill bit axis
1.00 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)
174 (121/53)
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)
14 (11/3)
Number of changeable nozzles
3
Number of changeable nozzles
3
Connecting thread
З-121 ук. (-)
Connecting thread
З-121 ук. (-)
Drill bit height, mm
0.0
Drill bit net weight, kg
49.50
Drill bit gross weight, kg
51.00
Recommended Drilling Conditions
Rotation speed
115-60 rpm
Thrust load
12.00-24.00 t (26400 - 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 extra hard formations
Design Features
Views:
1181
Send letter
The name
The email
Your message
Submit