3 1/2"~ 26" Size Tricone Drill Bit For Rock Excavation Engineering
Tricone Drill Bit Features:
- Sealed journal of oil bearing
- High drilling efficiency
- Optimized teeth placement
- Designable tooth shape and height
- Designable gauge protection
- Widely used for oil and natural gas field's drilling
- Efficient in geological exploitation
Tricone Drill Bit Advantage
- Carbide Insert Teeth
- Tricone bit with high strength and high
- toughness of cemented carbide
- tooth,improve the shock resistance capacity
- of the reduction gear,and reduce rate of
- gear broken.
Unique structure design
- Optimize the design of tooth row
- number,the teeth number ,the height and
- the unique configuration of cemented
- carbide tooth.Give full play to the drill
- cutting ability and cutting speed.
Main product:
- IADC code: 116 117 126 127 136 137 216 217 226 316 317 326 327 336
337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131
346 347 417 427 437 517 527 537 617 627 637 737 837 832 415 425 435
445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535
- Sizes: From 2 7/8 to 26"larger sizes for hole opener bit ,reamer
bit
- Bearing type: sealed bearing and non-sealed bearing; HJ(metal
sealed journal bearing); HA (rubber sealed journal bearing; air
cooled bearing type
- (4) Formation or layer: soft, medium soft, hard, medium hard, very
hard formation
| IADC CODE SELECTION |
| IADC | WOB | RPM | Application |
| (KN/mm) | (r/min) |
| 111/114/115 | 0.3-0.75 | 200-80 | very soft formations with low compressive strength and high drill
ability, like clay, mudstone, chalk |
| 116/117 | 0.35-0.8 | 150-80 | very soft formations with low compressive strength and high drill
ability, like clay, mudstone, chalk |
| 121 | 0.3-0.85 | 200-80 | soft formations with low compressive strength and high drill
ability, like mudstone, gypsum, salt, soft limestone |
| 124/125 | 180-60 |
| 131 | 0.3-0.95 | 180-80 | soft to medium formations with low compressive strength, like
medium, soft shake, medium soft limestone, medium soft sandstone,
medium formation with harder and abrasive interbeds |
| 136/137 | 0.35-1.0 | 120-60 |
| 211/241 | 0.3-0.95 | 180-80 | medium formations with high compressive strength, like medium, soft
shake, hard gypsum, medium soft limestone, medium soft sandstone,
soft formation with harder interbeds. |
| 216/217 | 0.4-1.0 | 100-60 |
| 246/247 | 0.4-1.0 | 80-50 | medium hard formation with high compressive strength, like hard
shale, limestone, sandstone, dolomite |
| 321 | 0.4-1.0 | 150-70 | medium abrasive formations, like abrasive shale, limestone,
sandstone, dolomite, hard gypsum, marble |
| 324 | 0.4-1.0 | 120-50 |
| 437/447/435 | 0.35-0.9 | 240-70 | very soft formations with low compressive strength and high drill
ability, like clay, mudstone, chalk, gypsum, salt, soft limestone |
| 517/527/515 | 0.35-1.0 | 220-60 | soft formations with low compressive strength and high drill
ability, like mudstone, gypsum, salt, soft limestone |
| 537/547/535 | 0.45-1.0 | 220-50 | soft to medium formations with low compressive strength, like
medium, soft shake, medium soft limestone, medium soft sandstone,
medium formation with harder and abrasive interbeds |
| 617/615 | 0.45-1.1 | 200-50 | medium hard formation with high compressive strength, like hard
shale, limestone, sandstone, dolomite |
| 637/635 | 0.5-1.1 | 180-40 | hard formation with high compressive strength, like limestone,
sandstone, dolomite, hard gypsum, marble |
| Note: Above limitts of WOB and RRPM should not be used
simultaneously |
| PIN SIZE |
| Bit Diameter | API PIN |
| (inch) | (mm) |
| 3 7/8''~5 1/4'' | 98~134 | 2 3/8''. 2 7/8'' |
| 5 5/8''~6 3/4'' | 143~171 | 3 1/2'' |
| 7 1/2''~9 1/2'' | 190.5~241 | 4 1/2'' |
| 9 5/8''~13 3/4'' | 245~350 | 6 5/8'' |
| 14 5/8''~26'' | 371~660.4 | 7 5/8'' |
Cutting Structure
Steel Tooth: Premium tungsten carbide hard facing on the surface,
greatly enhance the wear resistance of the tooth.
Tungsten Carbide Inserts: Various type high quality tungsten
carbide inserts can be equipped on the bits, professional and
scientific selection of the inserts as per the different
application and drilling process to achieve high efficient drilling
production.
Gauge Structure
Multiple gauge protection with gauge trimmers on heel and gauge
inserts on the gauge surface of the cone, tungsten carbide inserts
and hardfacing on the shirttail increases gauge holding capability
and bearing life.
Bearing Structure
Journal bearing and roller bearing types are available to be
chosen. Abrasion & seizure resistance, loading capacity, stability
of the bearing are well improved, suitable for high speed rotary
drilling.
Seals and Lubrication
The advanced metal seals improve the reliability and stability of
the bearing sealing. Pressure difference type compensating system
assures a good greasing lubrication function.
IADC
vary from 114--637 applicable for the hole drilling in the upper
section with good drillability.
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
