| 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
1. In modern drilling, a smaller hole is initially drilled. Then, the hole is expanded using a hole opener, a common technique employed when the drilling machine has lower power or when the target hole size is substantially large.
This regular drilling technology is especially useful when the drilling machine is lower in power, or the target end-hole is significantly large.
2. We expertly craft hole openers and provide tailored solutions based on various factors such as rock hardness, the depth of drilling, and pilot hole dimensions.
size of pilot hole, We also account for the size of the intended end-hole to ensure efficiency and precision.
3. For specialized drilling, the integration of tricone bits as pilot bits transforms the hole opener into a rock bit. Hole openers with tricone pilot bits are ideal for specific size well drilling.
Such configurations are frequently used in special size well drilling, enhancing adaptability and performance.
4. The reamer is ingeniously designed, typically comprising four or more durable cones.
5. Premium cutting structures incorporate tungsten carbide hard facing or inserts, employing advanced formulas and techniques.
of formulas and These advanced techniques significantly enhance the wear resistance capability of the reamer.
6. The tricone bit is employed as the pilot, ensuring reliable and efficient operation.
7. Seal and lubrication: Utilizes high-performance HNBR O-rings for superior bearing sealing, complemented by advanced grease for efficient lubrication.
8. Product applications: Perfect for large-scale well drilling, as well as mining and various infrastructure projects, offering outstanding adaptability.
9: Recommended drilling parameters: Please note that the size and number of cones are customizable to fulfill specific customer requirements.
customer's requirements
2. Advantages of hole opener bits
In directional crossing operations widely used in unexcavated projects, the process is executed in three crucial steps:
1. Oriented hole operation; 2. Hole opening; 3. Pipe pulling.
The hole opening is the most challenging aspect, wherein choosing the appropriate hole opener according to equipment and formation becomes vital.
The key to successful hole opening operations lies in selecting the right hole opener, tailored to the specific operational equipment and geological formation.
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