bits
Three wings drag bits:
- Drag bits are made according to API standard or NROD thread standard or others.
- Various step and chevron drag bits are available from 2 inch to 17 1/2 inch.
- There is very good feedback because of the quality and price.
- Different drag bits can be made according to your drawings or samples.
They are usually designed for use in soft formations such as sand, clay, or some soft rock.
Their uses include drilling water wells, mining, geothermal, environmental and exploration drilling.
Whenever possible, they should be used to drill pilot holes, for they produce cuttings that are easiest to log.
Usually drag bits are three wings, while sometime people need four wings or five wings.
Other special design is available upon your request.
Model | diameter | PDC cutter | blade quantity | rock formation | working way |
LJG94GP | 94MM, | Plane PDC | 3 | Middle and hard formation | cutting,crush |
LJG113GP | 113MM | Plane PDC | 3 | Middle and hard formation | cutting,crush |
LJG133GP | 133MM | Plane PDC | 3 | Middle and hard formation | cutting,crush |
LJG153GP | 153MM | Plane PDC | 3 | Middle and hard formation | cutting,crush |
LJG171GP | 171MM | Plane PDC | 3 | Middle and hard formation | cutting,crush |
Features
1 High Penetration, High Blade Profile
2 Better Durability - Premium grade 5 wing design is more durable than 3 and faster than 6.
- Gauge pads have tungsten carbide inserts for maximum wear resistance.
- All cutters are premium grade for extended bit life and durability.
3 Asymmetric Force Balanced Design - Cutter layout is force balanced to drill a precise round hole and reduce bit whirl.
4Does Not Plug
5 Versatility of Thread - Available in many threads and sizes.
- Run PDC on your existing sub.
6 Lower Cost
PDC(polycrystalline diamond compact) drill bit is a new product after the hot-pressed and electroplated
drill bit recent years. With special high-frequency weldin techniques. PDC of high wear resistant is welded to the body as cutting edges.
PDC bit is mainly used for geological prospecting, coal exploration, water conservancy and power engineering, etc.
Features
1 High Penetration, High Blade Profile
2 Better Durability - Premium grade 5 wing design is more durable than 3 and faster than 6.
- Gauge pads have tungsten carbide inserts for maximum wear resistance.
- All cutters are premium grade for extended bit life and durability.
3 Asymmetric Force Balanced Design - Cutter layout is force balanced to drill a precise round hole and reduce bit whirl.
4Does Not Plug
5 Versatility of Thread - Available in many threads and sizes.
- Run PDC on your existing sub.
6 Lower Cost
Less expensive than traditional PDC on the market
PC105
Arc crown profile design and blade-style cutter setting.
Natural diamond ID&OD gague,fluid courses set on ID gague to ensure a better cleaning and cooling effect upon cutters of the gague.Applicable for medium hard to hars formations and it allows to be used in various formations.
PC605
Short-medium parabolic crown profile the blade-style cutter setting.
High ROP in medium to medium hard formations with the low compressive strenth and small abrasive formations.
Applicable for medium to hard formations
PC 206
Double cone crown profile and medium size ballaset diamond cutter.
Natural diamond ID&OD,gague Collected groove fluid courses with flow.
Applicable for medium to medium hard formations,such as sandstone,limestone dolomite
1. Cutting Structure of this series tricone rock bit :
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for
steel tooth bit.
2. Gauge Structure of this series tricone rock bit :
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.
3.Bearing Structure of this series tricone rock bit :
High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
4.Seal and Lubrication of this series tricone rock bit :
The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
5.Product Application of this series tricone
rock bit :
It is suitable for downhole motor and high speed applications.
