Basical Specification |
|
Size of Rock Bit |
12 1/4 inches |
311.2 mm |
|
Bit Type |
Steel Teeth Tricone Bit / Milled Teeth Tricone Bit |
Thread Connection |
6 5/8 API REG PIN |
IADC Code |
IADC237G |
Bearing Type |
Journal Bearing |
Bearing Seal |
Elastomer sealed or Rubber sealed |
Heel Protection |
Available |
Shirttail Protection |
Available |
Circulation Type |
Mud Circulation |
Drilling Condition |
Rotary drilling,high temp drilling,deep drilling,motor drilling |
Total Teeth Count |
147 |
Gage Row Teeth Count |
40 |
Number of Gage Rows |
3 |
Number of Inner Rows |
9 |
Jounal Angle |
33° |
Offset |
6.5 |
Operating Parameters |
|
WOB (Weight On Bit) |
35,053-83,813 lbs |
156-373KN |
|
RPM(r/min) |
300~60 |
Recommended upper torque |
37.93KN.M-43.3KN.M |
Formation |
Medium to medium hard formation of high crushing resistance. |