|
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. |