Last year, we helped Alfonso-one of our Mexican customers choose products, help him expand the market, and get very good feedback
Tricone bit is the most common drilling tool, applicable in any formation.
Now, we want to share some details about how to choose right tricone bits?
A. There are 2 types of tricone bits based on teeth type
1, Steel teeth tricone bits (IADC1**, IADC2**, IADC3**)
2, TCI tricone bits (IADC4**, IADC5**, IADC6**, IADC7**, IADC8**)
B. There are 4 types of tricone bits based on bearing type
1, Open bearing (IADC**1);
2, Air bearing (IADC**2, IADC**3);
3, Roller bearing (IADC**4, IADC**5)
4, Journal bearing (IADC**6, IADC**7)
C. Some details:
1, Soft formation better choose steel tricone bit, e.g mud
2, Hard formation better choose tci tricone bit, e.g limestone
3, Open bearings, air bearing, roller bearing are mostly used in mining projects
4, Roller bearing, journal bearing are mostly used in water well drilling projects
5, According to compressive strength to choose tricone bit.
| PSI | IADC code | Formation |
| More than 40000 | IADC7**, IADC8** | hard silica limestones, quartzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores, and granites |
| 25000~40000 | IADC5**, IADC6** | sandstones with quartz binder, dolomites, quartzite shales, magma and metamorphic coarse-grained rocks |
| 15000~25000 | IADC4** | shales, dolomites, sandstones, clays, salts, and limestones. |
| 8000~15000 | IADC3** | sandstones with quartz binder, hard sandstones, hard quartz shales, magma, and metamorphic rocks. |
| 4000~8000 | IADC2** | marl limestones，gypsum, and hard coals. |
| 0~4000 | IADC1** | clays and sandstones, salts |
Here are several types of tricone:
This one is IADC117, suitable for very soft formations, like mud, claystone, etc
This one is IADC537, top-rated type, chisel teeth, suitable for medium rock, limestone, marble, etc
This one is IADC637, conical teeth, suitable for hard formation, granite, basalt, etc
This one is IADC737, ball teeth, suitable for very hard formation, quartzite, etc
More information, please contact us, we welcome any questions or comments you might have.
