12 1/4'' Carbide Tricone Drill Bit Water Well Drilling High Wear Resistance
12 1/4'' Carbide Tricone Drill Bit Water Well Drilling High Wear Resistance
Product description
- The strength and wear resistance of inserts are improve by using carbide inserts with high strength and high wear resistance.
- Surface of the high precision bearing heat treated by using advanced heat treatment process to improve the load capacity and service life of the bearing.
- The service life of the bearing is further extended by adopting harder and more wear resistant material for thrust bearing.
- This series oil well rock bit use sealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased.
- Thrust bearing surfaces are hard faced and treated with friction reducing technology.
- Rotary drill bits use journal bearing. Hard faced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. The load capacity and seizure resistance of the bearing is greatly improve.
|
Size
|
Type(IADC)
|
API Thread size(Inch)
|
Net weihgt(kg)
|
|
|---|---|---|---|---|
|
In
|
mm
|
|||
|
5 7/8
|
149.2
|
517 257 537 547 617
|
3 1/2
|
18
|
|
6
|
152.4
|
517 257 537 547 617
|
3 1/2
|
19.5
|
|
7 7/8
|
200.0
|
517 257 537 547 617 627 637
|
4 1/2 |
29.5
|
|
8 1/2
|
215.9
|
117 127 437 517 527 537 547 617
|
4 1/2
|
38
|
|
9 1/2
|
241.3
|
117 127 437 447 517 527 537 547 617
|
6 5/8
|
57.5
|
|
121/4
|
311.1
|
117 127 437 447 517 527 537 547 617
|
6 5/8
|
97
|
|
13 1/8
|
333.4
|
117 127 437 447 517 527 537 547 617
|
6 5/8
|
120
|
|
14 3/4
|
374.7
|
117 127 437 447 517 527 537 547 617
|
7 5/8
|
160
|
|
16
|
406.4
|
117 127 437 447 517 527 537 547 617
|
7 5/8
|
205
|
|
17 1/2
|
444.5
|
117 127 437 447 517 527 537 547 617
|
7 5/8
|
255
|
| IADC | Parameters | Rock formation | |
| Wob(kn/mm) | Rpm(r/min) | ||
| 116 117 | 0.35-0.8 | 150-80 |
Low compressive strength extremely soft formation of high drillability, such as clay, mudstone, chalk |
| 126 127 | 0.35-0.9 | 150-70 |
Low compressive strength soft formation of high drillability, such as Mudstone, gypsum, salt rock, soft shale, soft limestone |
| 136 137 | 0.35-1.0 | 120-50 |
Low compressive strength soft to medium soft formation of high drillability such as anhydrite, soft shale, medium soft limestone,medium soft sandstone soft formations interlayer |
| 216 217 | 0.4-1.0 | 100-50 |
High compressive strength medium soft formations , such as soft shale, anhydrite, soft limestone, medium soft sandstone and has a interlayer |
| 246 247 | 0.4-1.0 | 80-50 |
High compressive strength medium hard formations such as abrasive shale, limestone, sandstone, dolomite and anhydrite, marble |
| 417 437 447 | 0.35-0.9 | 150-70 |
Low compressive strength and high drill ability of extremely soft stratum, such as clay, shale, gypsum and halite, soft shale, soft limestone |
| 517 527 | 0.35-1.0 | 140-50 |
Low compressive soft formations, such as mudstone, gypsum, salt rock, soft shale, soft limestone |
| 537 547 | 0.45-1.0 | 120-50 |
Low compressive strength of soft to medium formation, softshale, medium soft limestone, medium soft sandstone, and there are hard abrasive sandwich middle stratum |
| 617 627 | 0.45-1.1 | 90-50 |
High compressive strength of medium hard formations, such as sandstone, limestone, dolomite, hard shale |
| 637 | 0.5-1.2 | 80-40 |
High compressive strength of hard formations, such as sandstone, limestone, dolomite and anhydrite, marble |
About us
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ Tecnologies (Beijing) Co. Ltd.
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, production, and application. The company has adopted advanced manufacturing processes to ensure high quality steels and tungsten carbide inserts for its rock drilling accessories. Its personnel understand clients’ drilling needs, and have the service skills to recommend the right drilling tools for the job. Its experienced product developers can also create custom tools. Furthermore, the company’s development team introduces innovative products each year – tools that are rigorously tested in the field and proven
to perform beyond industry expectations.
MIROC® Rock Drilling and Ground Support Tools include:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.