| Customization: | Available |
|---|---|
| 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 the realm of drilling, professionals often start by creating a preliminary, smaller hole. This initial drilling is then expanded using a hole opener, a technique that is quintessential in scenarios where the drilling equipment possesses lower power or when the final hole size is exceptionally large.
This is a conventional drilling methodology, highly effective for achieving precise and large-scale end-hole dimensions even with limited machinery power.
2. Our expertise lies in crafting hole openers and comprehensive drilling solutions tailored to the specific hardness of the rock formations, desired drilling depths, and dimensions of initial pilot holes.
This customization ensures optimized performance based on the size of the pilot hole, and the size of the desired end-hole.
3. When tricone bits are employed as pilot bits, the hole opener transforms into an advanced rock bit, often utilized for specialized well drilling where unique dimensions are required.
This configuration is particularly advantageous in wells that necessitate distinct sizes, leveraging the effectiveness of tricone bits as pilot components.
4. The core structure of the reamer is robust, comprising four or more meticulously designed cones.
5. Utilizing superior cutting structures adorned with high-quality tungsten carbide hard facing or premium tungsten carbide inserts,
the reamer is engineered with innovative formulas and techniques that significantly enhance its wear-resistant capabilities, ensuring longevity and reliability in challenging conditions.
6. The pilot component is a durable tricone bit, ensuring steady and efficient operation.
7. Seal and Lubrication: Equipped with a high-performance HNBR O-ring for bearing seal integrity and cutting-edge grease for optimal lubrication,
8. Product Applications: This reamer is exceptionally suited for large-scale well drilling, as well as mining and diverse infrastructure projects, providing versatility and efficiency.
9: Recommended Drilling Parameters: Please be aware that the configuration, including size and number of cones, is meticulously tailored to satisfy customer's specific requirements,
ensuring precision and satisfaction.
2. Advantages of Hole Opener Bits
In directional crossing operations that are prevalent in unexcavated projects, these hole openers shine. The process typically unfolds in three crucial stages:
1. Oriented Hole Operation; 2. Hole Opening; 3. Pipe Pulling.
The hole opening phase is particularly challenging yet pivotal. The success of this phase heavily depends on selecting the right hole opener,
strategically chosen based on the operational equipment and geological formation, ensuring seamless and effective project execution.
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