| Customization: | Available |
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| Customized: | Customized |
| Standard: | API |
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Roller cone bit IADC code |
IADC code of diamond bit |
Formation description |
Rock type |
Compressive strength(Mpa) |
ROP(m/h) |
|
111/124 |
M/S112~M/S223 |
Very soft:sticky soft formation with low compressive strength. |
Clay Siltstone sandstone |
<25 |
>20 |
|
116/137 |
M/S222~M/S323 |
Soft:soft formation with low compressive strength and high drillability. |
Clay rock Marl Lignite sandstone |
25~50 |
10~20 |
|
417/527 |
M/S323~M/S433 |
Medium soft:soft to medium formation with low compressive strength and steak. |
Clay rock Marl Lignite Sandstone Siltstone Anhydrite Tuff |
50~75 |
5~15 |
|
517/537 |
M322~M443 |
Medium:medium to hard formation with high compressive strength and thin abrasive streak. |
Mudstone Dark rock shale |
75~100 |
2~6 |
|
537/617 |
M422~M444 |
Medium hard:hard and dense formation with high compressive strength and medium abrasiveness. |
Dark rock Hard shale Anhydrite Sandstone Dolomite |
100~200 |
1.5~3 |
1. Hole Opener: An indispensable component in the drilling process, crafted to expand initial boreholes with precision.
1. Drillers often begin by boring a smaller pilot hole before enlarging it using a hole opener. This technique is essential when dealing with lower-powered drilling machines or oversized end-holes.
of regular drilling technology when the drilling machine is lower power or the end-hole is too large to manage directly.
2. We customize hole openers and provide tailored solutions according to rock hardness, drilling depth,
size of the pilot hole, as well as the size of the intended end-hole.
3. Incorporating tricone bits as pilot bits transforms the hole opener into a rock bit. This configuration is ideal for drilling wells with unique size specifications.
as pilot bits is always applicable in special sizes well drilling, optimizing efficiency and accuracy.
4. The reamer is expertly constructed with four or more durable cones.
5. Its cutting structure utilizes premium tungsten carbide hard facing or inserts, ensuring enhanced durability and performance.
of formulas and advanced techniques, significantly boosting the wear-resistance of the reamer.
6. The pilot component is a tricone bit, providing stability and precision.
7. Seal and Lubrication: Features a high-performance HNBR O-ring for superior bearing seals and advanced grease lubrication, ensuring longevity and efficiency.
8. Product Applications: Perfectly suited for large-scale well drilling, mining, and infrastructure projects, where reliability and strength are paramount.
9: Recommended Drilling Parameters: Please note that the size and cone configurations are customized according to each customer's specific needs,
ensuring precise adherence to your unique operational requirements.
2. Advantages of Hole Opener Bits: Designed for excellence in directional crossing, these bits enhance the efficiency of unexcavated projects.
Directional crossing operation is widely used in unexcavated project. The three essential steps include:
1. Oriented hole creation; 2. Strategic hole opening; 3. Efficient pipe pulling.
Hole opening is a critical and demanding task. The key to success lies in selecting the right hole opener based on equipment capabilities and geological formations.
The choice of hole opener must be tailored to the operational equipment and the specific geological formation to ensure seamless execution.
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