|
1. Elastomer (Rubber) Sealed Roller Bearing Bit
|
|
|
Cutting Structure
|
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
|
|
Gauge Structure
|
Multiple gauge protection with gauge trimmers on the 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.
|
|
Sealed Bearing Structure
|
1.Abrasion resistance and seizure resistance of the bearing are improved.
2.Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. |
|
Main Type Available
|
Size: 5 7/8",6",6 1/2",7 1/2", 7 7/8",8 1/2",9 1/2", 9 5/8",9 7/8",12 1/4",13 5/8",14 3/4",15",15 1/2",17 1/2",22",24",26", etc.
IADC Code:1-- Series, 2-- Series,3-- Series |
|
|
|
|
2. Air Cooling Roller Bearing Steel Tooth Bit
|
|
|
Cutting Structure
|
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
|
|
Gauge Structure
|
Gauge protection with gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability.
|
|
Sealed Bearing Structure
|
Air cooling roller bearing package. Balls lock the cone which reduces the probability of cone-dropping to minimum.
|
|
Main Type Available
|
Size:5 7/8”,6",6 1/2",7 1/2", 7 7/8",8 1/2",9 1/2", 9 5/8",9 7/8",12 1/4",14 3/4",17 1/2", etc.
IADC Code:1-- Series, 2-- Series, 3-- Series |
|
|
|
|
3. Non-Sealed Roller Bearing Steel Tooth Bit
|
|
|
Cutting Structure
|
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces.
|
|
Sealed Bearing Structure
|
Non-sealed roller bearing. Drilling fluid can enter the bearing directly for cooling; Balls lock the cone which reduces the probability of cone Cdropping to minimum.
|
|
Main Type Available
|
Size: 2 3/8",3",3 5/8:",3 7/8",4",4 1/2",4 5/8",4 3/4",6",6 1/2",7 1/2", 7 7/8",8 1/2",9 1/2", 9 5/8",9 7/8",10 5/8",12 1/4", 17 1/2",etc.
IADC Code:1-- Series,2-- Series,3-- |
Soft formation TCI tricone bits:
The soft formation TCI tricone bits are used to drill low compressive strength, very soft formations. This bit maximized to use of both conical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure design, combined with maximum cone offset, results in high bit penetration rates. The deep intermesh of cutter rows prevents bit bailing in sticky formations.
Medium formation TCI tricone bits:
The medium formation TCI tricone bits features aggressive chisel tungsten carbide inserts on the heel rows and inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium hard for mations. The HSN rubber O-ring provides adequate sealing for bearing durability.
Hard formation TCI tricone bits:
The hard formation TCI tricone bits can be used to drill hard and abrasive formations. Wear resistance tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of hemispherical shaped inserts are used in all rows to provide cutter durability and long life.
Medium hard formation TCI tricone bits:
The medium hard formation TCI tricone bits features robust chisel tungsten carbide inserts on the heel row and conical on the inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations. The HSN rubber O-ring provides adequate sealing for bearing durability.
Soft formation teeth bits:
The soft formations tooth bits are used to drill low compressive strength, soft formations. Long projection tooth lengths are used on high offset cones to provide the greatest penetrations rates possible. Wear resistance hard facing is used to control tooth wear. On the softest bit types this hard facing completely covers the bit teeth.
Medium hard formations tooth bits:
The medium hard formation tooth bits are used to drill high compressive strength, medium hard formations. Shoot projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied to reduce tooth wear.