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. |
Model |
Steel tooth bit & TCI Bit |
IADC CODE |
111,114,115,116,117,121,124,125,126,127,131,135,136,137,214,216,217 225,226,226,235,237,314,315,316,317,325,326,327,335,336,337,347 |
417,427,437,517,527,537,617,627,637,737,837,832,415,425,435,445 525,625,635,412,415,416,422,425,427,435,436,446 447,516,526,532,535,536,537,542,545,547,615,622,632,635 642,645,715,722,725,732,735,742,745,825,832,835,845 |
|
available sizes: |
From 2 7/8 to 26"Larger sizes for hole opener bit ,reamer bit |
advantage |
most favourable price and best qualtity |
bearing type: |
Sealed bearing and non-sealed bearingHJ(metal sealed journal bearing) HA (rubber sealed journal bearingAircooled bearing type |
Formation or layer |
soft ,medium soft ,hard,medium hard,very hard formation |
Button size (extra features) |
Button bit,saw teeth 1) Y-Conical teeth 2) X-Chisel teeth 3) K- wide teeth 4) G- Gague protection |
Material |
Alloy steel ,carbide |
Application |
Petroleum & gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work. |