China Roller Reamer Factory: High-Performance Drill Bit Suppliers for Enhanced Efficiency and Durability
Product Application
Three different types (T, F and B) of cutters are offered to meet various geological requirements:
T
Type T: Milled, machined with hard faced sharp teeth for soft formations.
F
Type F: Milled, machined with hard faced flat teeth, for medium hard formations.
B
Type B: Equipped with pressed-in tungsten carbide buttons, for hard formations.
Our Roller Reamer has a unique design that enables it to marginally increase the wellbore diameter while still rotating concentrically. It ensures optimal tool placement in the bottomhole assembly, not only guaranteeing maximum tool efficiency but also ensuring there are no negative effects on the bending stresses or contact forces.
Features
Low-torque cutting structure
Tool will generate less than 5% of the reactive torque generated by the drill bit with which it is used.
One-piece construction
Manufactured from a single piece of steel with premium material properties for a strong, robust design.
Unique blade layout
Designed for maximum protection during drillout and increased efficiency to agitate cuttings in high-angle wells.
Cost-effective solution
A real-time solution that delivers improved wellbore geometry and significantly reduced trip time.
Roller Reamer Specification
| Hole Size (inch) | Connection | Hole Size(inch) | Fishing Neck(inch) | ID(inch) | OAL(inch) | Blade Length(inch) |
|---|---|---|---|---|---|---|
| 42 | 8-5/8 REG | 42” | 11” | 3” | 118-130” | 24” |
| 36 | 7-5/8 REG | 36” | 9.5” | 3” | 110-120” | 22” |
| 28 | 7-5/8 REG | 28” | 9.5” | 3” | 100-110” | 20” |
| 26 | 7-5/8 REG | 26” | 9.5” | 3” | 100-110” | 20” |
| 24 | 7-5/8 REG | 24” | 9.5” | 3” | 100-110” | 20” |
| 22 | 7-5/8 REG | 22” | 9.5” | 3” | 100-110” | 20” |
| 17 1/2 | 7-5/8 REG | 17 1/2” | 9.5” | 3” | 90-100” | 18” |
| 16 | 7-5/8 REG | 16” | 9.5” | 3” | 90-100” | 18” |
| 12 1/2 | 7-5/8 REG | 12 1/2” | 8” | 2 13/16” | 79-90” | 18” |
| 12 1/4 | 6-5/8 REG | 12 1/4” | 8" | 2 13/16” | 79-90” | 18” |
| 8 1/2 | NC50 (4 1/2 REG) | 8 1/2” | 6 3/4” | 2 13/16” | 65-72” | 16” |
| 6 | NC38 (3 1/2 REG) | 6” | 4 3/4” | 2 1/4” | 60-66” | 16” |
Frequently Asked Questions
How do I choose the right cutter type for my project?
Selection depends on the formation hardness: Type T is for soft formations, Type F for medium-hard, and Type B (tungsten carbide) is designed for hard formations.
What are the benefits of the one-piece construction?
The single-piece steel design ensures maximum structural integrity and robustness, reducing the risk of component failure in the drillstring.
Does using a roller reamer increase drilling torque significantly?
No, our roller reamer features a low-torque design that generates less than 5% of the reactive torque compared to the drill bit.
Are these roller reamers suitable for directional drilling?
Yes, the unique blade layout is specifically engineered to agitate cuttings on the low side of the wellbore in high-angle directional applications.
How does the roller reamer improve wellbore geometry?
It maintains a concentric rotation that marginally increases and smooths the wellbore diameter, leading to better tool placement and reduced trip time.